CN102092699B

CN102092699B - Method for preparing lithium iron phosphate by sintering lithium iron phosphate precursor and microwave sintering equipment

Info

Publication number: CN102092699B
Application number: CN2009102605807A
Authority: CN
Inventors: 刘新保; 贾晓林; 周永刚; 蔡俊明; 李恩惠
Original assignee: HENAN UNION NEW ENERGY CO Ltd
Current assignee: HENAN UNION NEW ENERGY CO Ltd
Priority date: 2009-12-11
Filing date: 2009-12-11
Publication date: 2013-06-26
Anticipated expiration: 2029-12-11
Also published as: CN102092699A

Abstract

The invention discloses a method and equipment for preparing lithium iron phosphate from a lithium iron phosphate precursor. The method comprises the three process steps of pretreatment of the lithium iron phosphate precursor material, pre-sintering and sintering; and in a non-oxidizing environment, the precursor material is heated by a certain number of microwave heaters, and the three process steps are finished by controlling treatment temperature and treatment time to finally prepare the lithium iron phosphate product. The equipment comprises a material inlet, a material feeding ventilation chamber, a pretreatment unit furnace, a pre-sintering unit furnace, a sintering unit furnace, a material discharging ventilation chamber, a cooling material discharging mechanism, a material outlet, a vacuumizing device, a protective gas input device and an equipment control circuit. In the method, the pretreatment and pre-sintering process steps are added to optimize a lithium iron phosphate microwave sintering process and solve keys problems on product quality control. The equipment provided by the invention realizes continuous microwave sintering by a plurality of unit furnaces so as to improve the sintering efficiency and realize large-scale industrial production.

Description

The ferric lithium phosphate precursor sintering prepares LiFePO4 method and microwave sintering apparatus

One, technical field:

The present invention relates to new forms of energy battery material sintering preparation method and agglomerating plant field, particularly a kind of ferric lithium phosphate precursor sintering prepares LiFePO4 method and microwave heating continuous producing apparatus.

Two, background technology:

Lithium ion battery has that discharge-rate is high, the serviceability temperature wide ranges, cycle performance is good, fail safe good, the advantage such as environment friendly and pollution-free, be widely used in the portable electric appts such as mobile phone, laptop computer, miniature camera since coming out, as energy and material of new generation, use constantly propelling in fields such as electric automobile, satellite, space flight and military affairs, have a extensive future.Positive electrode is the important component part of lithium ion battery, is the key point of research and development high performance lithium ion battery.LiFePO4 (LiFePO ₄) as anode material of lithium battery, have that raw material sources is abundant, cheap, non-environmental-pollution, the advantage such as capacity is higher, cycle performance is good, good stability, preparation battery safety are given prominence to, in various battery powers field, particularly there are great market prospects large-sized power application of power aspect, is one of the most promising anode material for lithium-ion batteries.

LiFePO4 (LiFePO ₄) traditional preparation method mainly contains following several: high temperature solid-phase sintering method, carbothermic method, sol-gel process, coprecipitation, hydro thermal method etc.Wherein a lot of methods are all by preparation LiFePO4 (LiFePO ₄) presoma, then presoma is carried out sintering and obtain final LiFePO4 (LiFePO ₄) product, the ferric lithium phosphate precursor sintering prepares LiFePO4 (LiFePO at present ₄) traditional preparation method calcine in high temperature reaction stove, under vacuum or non-oxygen atmosphere, obtain final products by controlling temperature, heating time.The patent No. is the patent of invention of ZL200710050029.0, propose " a kind of core-shell type nano-scale carbon-covered iron lithium phosphate compound anode material and preparation method thereof ", after this invention prepares ferric lithium phosphate precursor by wet method, precursor powder is placed in vacuum sintering furnace, be under the pressure of 5-15Pa in vacuum degree, first under 300 ℃～400 ℃ temperature conditions predecomposition 2-6 hour, be warming up to again under 600 ℃～800 ℃ temperature conditions calcining 10-20 hour, obtain the core-shell type nano-scale carbon-covered iron lithium phosphate compound anode material after cooling.This preparation method's sintering period is long, and production cost is high, and production efficiency is low.

Microwave sintering is mainly the coupling that utilizes microwave energy and material, be transformed into the direct heating material of heat energy to sintering temperature by the dielectric loss of material and the in-fighting of magnetic dielectric loss consumption generation, being sintered material itself is exactly heater, thereby thermal loss is little, and because the penetration depth of microwave is large, temperature gradient is very little, can heat up rapidly and lower the temperature, thereby whole sintering process is significantly shortened, do not have shadow effect, now microwave technology has become one of sintering technology of tool development prospect.The patent No. is the patent of invention of ZL200610037041.3 " preparation of high density ultrafine composite ferric lithium phosphate anode material ", and the method separates obtaining LiFePO4 (LiFePO by sol-gel process ₄) presoma, presoma is placed in microwave oven, temperature setting is set to 600 ℃-800 ℃, and the time is 5-300 minute, obtains end product, the method is with the synthetic generated time that greatly shortens of microwave, greatly reduce the energy consumption of building-up process, cheap, the material purity that makes is high, better with compatibility of electrolyte, electric conductivity and high rate during charging-discharging are superior.But this presoma microwave sintering prepares LiFePO4 (LiFePO ₄) method also there being certain defect aspect product quality control, can't reach higher rate of finished products.

The published application number of the inventor is 200810237321.8 application for a patent for invention " preparation method of ferric lithium phosphate precursor and charging battery electrode thereof ", the method comprises: (1) is with the ratio metering of Li source compound, Fe source compound, P source compound and reducing agent 1: 0.8 in molar ratio～1.2: 0.8～1.2: 1.0～1.2, first with the Li source compound solution of making soluble in water, add successively reducing agent, Fe source compound, P source compound, through mix, ageing; (2) concentrate under non-oxide atmosphere, drying; (3) dried product is ground in ball mill, then be placed in crucible, through heat treatment, prepare the presoma powder under non-oxide atmosphere.Obtain to adopt traditional one-step method microwave sintering process to prepare LiFePO4 (LiFePO after presoma ₄) also exist product quality to control inaccuracy, unstable product quality, the problem that rate of finished products is undesirable always.

Usually owing to tending to form a kind of special complex compound in the process of presoma preparation, this complex compound tends to be destroyed in advance because of the moisture that exists in presoma in the microwave sintering process, this will have influence on the final products quality, so should guarantee to make presoma to be converted into smoothly LiFePO during microwave sintering ₄, this special complex compound is destroyed in advance, reduce moisture to the impact of special complex compound in presoma, controlling the conversion of complex compound in sintering process is the key that improves product quality.Presoma is not thorough in the preparation process drying, or absorb in conventional environment moisture in atmosphere it is contained must moisture, the existence of these moisture all can make the special complex compound in presoma be destroyed in advance and affect the quality of product.This is also that present presoma prepares LiFePO4 (LiFePO ₄) microwave sintering process ignores presoma moisture and complex compound is processed, and causes product quality to control inaccuracy, production quality stability is poor, the problem such as rate of finished products is undesirable place.

Current LiFePO4 (LiFePO ₄) the stove equipment such as atmosphere protection pusher furnace, atmosphere protection rotary furnace that mainly contain of agglomerating plant comparative maturity; these agglomerating plants are generally Electric heating; heater element is resistance wire, Elema; thermal loss is large; and temperature gradient is large; easily cause product composition and granularity inhomogeneous, occupation area of equipment is large simultaneously, and cost of investment is high.

Microwave sintering generally uses the industrialized microwave stove, can't produce continuously, and automaticity is low, and scale and benefit are poor, there is no at present for LiFePO4 (LiFePO ₄) the microwave continuous agglomerating plant of the special suitability for industrialized production that proposes of sintering process characteristics.Utility model patent ZL200520051470.7 proposes " a kind of continuous powdery material microwave sintering furnace ", comprise feeding mechanism, microwave source, transition waceguide, body of heater, burner hearth, discharging mechanism, heat-insulation layer, temperature measurer, the auxiliary absorbing material of microwave, body of heater is up big and down small cone bucket shape structure, be provided with the helical-ribbon type new mixture bar in it, be connected with transmission mechanism; Feeding mechanism is the feed screw structure, and discharging mechanism is the Water-cooled screw discharging mechanism; One cover microwave source is arranged along the body of heater surrounding with the combination of many cover transition waceguides; At least one group of air inlet and exhaust outlet are provided with the stainless steel microporous filter, are provided with the observation port of infrared radiation thermometer on body of heater, and body of heater is ceramic material, and the helical-ribbon type new mixture bar is steel structure surface lining ceramic material or stainless steel.This utility model is simple in structure, cost is low, and does not need boat, health environment-friendly, efficient, is suitable for the microwave sintering of some polarity powder body materials.But this utility model exists and can not carry out the problem of substep continuous microwave fritting according to the technological requirement of LiFePO4 sintering, can't realize industrialization large-scale production, and production cost is also high.

Three, summary of the invention

Technical problem to be solved by this invention is: overcome weak point of the prior art; a kind of raising product quality is provided; shorten the production cycle; LiFePO4 sintering preparation method that can industrial large-scale production and can realize substep continuous sintering, microwave continuous agglomerating plant that can large-scale production.

The present invention is achieved in that

A kind of ferric lithium phosphate precursor prepares the method for lithium cell anode material of lithium iron phosphate, comprises the following steps:

(1), the preliminary treatment of ferric lithium phosphate precursor material: a certain amount of ferric lithium phosphate precursor material is distributed in the pretreatment unit body of heater by the auger conveyer, in non-oxide atmosphere environment, use the microwave applicator heating of some, 80～120 ℃ of pretreatment temperatures, pretreatment time 10～40 minutes;

(2), the presintering of ferric lithium phosphate precursor material: in non-oxide atmosphere environment, pretreated ferric lithium phosphate precursor material is distributed in presintering unit body of heater by the auger conveyer, in non-oxide atmosphere environment, use the microwave applicator heating of some, 200～350 ℃ of pre-sintering temperatures, 10～40 minutes presintering time;

(3), the sintering of ferric lithium phosphate precursor material: in non-oxide atmosphere environment, ferric lithium phosphate precursor material after presintering is distributed in sintering unit body of heater by the auger conveyer, in non-oxide atmosphere environment, use the microwave applicator heating of some, 550～700 ℃ of sintering temperatures, then sintering time 60～120 minutes cools to room temperature, obtains the lithium cell anode material of lithium iron phosphate product.

Described non-oxide atmosphere is under vacuum state or the protection of non-carrier of oxygen; described vacuum state refers to that vacuum degree is less than or equal to 10 handkerchiefs; described non-carrier of oxygen protection refers to fill inert gas argon gas or the neon of normal pressure; or fill normal pressure nitrogen or hydrogen; the heating power of pretreatment unit body of heater and presintering unit body of heater is 10～15kw, and the heating power of sintering unit body of heater is 30～100kw.

In the presintering process of described ferric lithium phosphate precursor material, pre-sintering temperature is 220～260 ℃; In the sintering process of described ferric lithium phosphate precursor material, sintering temperature is 600～650 ℃.

a kind of ferric phosphate lithium microwave heating step type continuous production equipment comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, described pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is that the closed horizontal hollow is cylindric, its cross sectional shape is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at unit body of heater one end top, unit furnace discharge mouth is positioned at body of heater other end bottom, unit, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and unit body of heater axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three horizontal layouts of the cover parallel step of unit body of heater horizontal slice, sequentially be communicated with by the material transferring passage between the unit body of heater, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

In described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is evenly arranged on the unit furnace body outer wall, or be evenly arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, is drawn into gas tube orifice and exhaust pipe mouth is equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of; Unit furnace discharge mouth is provided with unit furnace discharge valve, or at material transferring channel setting bleeder valve.

Sintering unit body of heater length is 3～5 times of pretreatment unit body of heater, presintering unit body of heater length.

Described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

The described discharging mechanism that cools, comprise Material pipeline, interlayer cover, water inlet, delivery port, auger conveyer, bleeder valve, Material pipeline is stainless steel, and the interlayer cover is wrapped on the Material pipeline pipeline outer wall, and the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, and its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, and bleeder valve is located at discharging opening top.

Described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

a kind of lithium iron phosphate micro-wave heating horizontal continuous production equipment comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is that the closed horizontal hollow is cylindric, its cross sectional shape is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at unit body of heater one end top, unit furnace discharge mouth is positioned at body of heater other end bottom, unit, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and unit body of heater axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, three overlap unit stove Horizontal type arranges, between the unit stove, discharging opening directly is communicated with charging aperture successively, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, pretreatment unit furnace discharge mouth directly is communicated with the charging aperture of presintering unit stove, the discharging opening of presintering unit stove directly is communicated with the charging aperture of sintering unit stove, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

In described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is evenly arranged on the unit furnace body outer wall, or be evenly arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, is drawn into gas tube orifice and exhaust pipe mouth is equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of; Unit furnace discharge mouth is provided with unit furnace discharge valve, and the bleeder valve valve plate is the arc that mates with the unit body of heater.

the horizontal continuous producing apparatus of a kind of ferric phosphate lithium microwave heating inclination comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is closed inclination hollow cylindrical, its axis vertical cross-section is shaped as annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at unit body of heater one end top, unit furnace discharge mouth is positioned at body of heater other end bottom, unit, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and unit body of heater axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three parallel horizontal inclined layouts of cover unit stove, the inclination angle is α, between the unit stove, discharging opening directly is communicated with charging aperture successively, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, pretreatment unit furnace discharge mouth directly is communicated with the charging aperture of presintering unit stove, the discharging opening of presintering unit stove directly is communicated with the charging aperture of sintering unit stove, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

Sintering unit body of heater length is 3～5 times of pretreatment unit body of heater, presintering unit body of heater length, and each unit stove parallel oblique arranges, unit body of heater axis downwards and the horizontal direction angle be inclined angle alpha, 0 °＜α≤30 °.

a kind of ferric phosphate lithium microwave heating vertical continuous production equipment comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper surface, unit one side, unit furnace discharge mouth is positioned at body of heater lower surface, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three vertical verticals of cover unit stove, sequentially be communicated with by the material transferring passage between the unit stove, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

In described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on the unit furnace body outer wall, or be arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, is drawn into gas tube orifice and exhaust pipe mouth is equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

Between described each unit stove, the material transferring channel cross-section is shaped as fan-shaped, rectangle or circular optional one.

a kind of ferric phosphate lithium microwave heating deflection vertical continuous production equipment comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper surface, unit one side, unit furnace discharge mouth is positioned at body of heater lower surface, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three parallel deflection verticals of cover unit stove, angle of deviation is α, sequentially be communicated with by the material transferring passage between the unit stove, charging aperture is communicated with pretreatment unit stove charging aperture by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

Between described each unit stove, the material transferring channel cross-section is shaped as fan-shaped, rectangle or circular optional one; Each unit stove deflection vertical, unit body of heater axis downwards and the horizontal direction angle be skew angle, 80 °≤α≤100 °.

a kind of lithium iron phosphate micro-wave heating staggered vertical continuous production equipment comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper end, unit one side, unit furnace discharge mouth is positioned at body of heater bottom, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three cover unit stove parallel vertical vertical that staggers, the material transferring passage that is β by the oblique angle that dips down between the unit stove sequentially is communicated with, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

Between the unit stove, material transferring channel centerline direction and horizontal direction angle are angle of inclination beta, 30 °≤β≤60 °.

a kind of lithium iron phosphate micro-wave heating staggered deflection vertical continuous production equipment comprises charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its axial vertical cross-section is shaped as annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper end, unit one side, unit furnace discharge mouth is positioned at body of heater bottom, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three parallel deflection verticals that stagger of cover unit stove, angle of deviation is α, the material transferring passage that is β by the oblique angle that dips down between the unit stove sequentially is communicated with, the transmission channel axis is approximate parallel with unit stove axis, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

Each unit stove deflection vertical that staggers, unit body of heater axis downwards and the horizontal direction angle be skew angle, 80 °≤α≤100 °, between the unit stove, material transferring channel centerline direction and horizontal direction angle are angle of inclination beta, 30 °≤β≤60 °.

the horizontal continuous producing apparatus of a kind of ferric phosphate lithium microwave heating single-furnace comprises charging aperture, the outer micro-wave screening insulation construction layer of body of heater, body of heater, microwave source, discharging mechanism cools, discharging opening, vacuum extractor, the protective gas input unit, the horizontal continuous producing apparatus of the single body of heater of described microwave heating also comprises the charging air-exchanging chamber, discharging air-exchanging chamber and production equipment control circuit, body of heater is provided with the body of heater charging aperture, a certain number of microwave tube, at least one is advanced exhaust tube, the body of heater discharging opening, bleeder valve, the auger conveyer, at least each vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe, body of heater is the closed hollow cylindrical, its axis vertical cross-section is shaped as annular, body of heater is wrapped with the outer micro-wave screening insulation construction layer of body of heater, the body of heater charging aperture is positioned at body of heater one end top, the body of heater discharging opening is positioned at body of heater other end bottom, the body of heater discharging opening is provided with bleeder valve, microwave source is arranged in the body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with the body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and body of heater axis are installed in parallel in body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe is arranged on the inboard wall of furnace body top, be connected with the equipment control circuit corresponding circuits by data wire, charging aperture is communicated with the body of heater charging aperture by the charging air-exchanging chamber, and the body of heater discharging opening is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, body of heater, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, the discharging mechanism that cools is connected with the equipment control circuit corresponding circuits by data wire.

In described body of heater, microwave source is connected with certain group of number microwave tube, and every group in parallel by some microwave tubes, and microwave tube is arranged on furnace body wall, or is arranged in the body of heater surrounding, and microwave source power is 30～100kw; Body of heater is provided with a blast pipe at least, is drawn into gas tube orifice and exhaust pipe mouth is equipped with microporous filter; Described body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

Body of heater axis and horizontal direction angle α, 0 °≤α≤10 °.

Described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with the body of heater charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with the body of heater discharging opening, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

Described production equipment control circuit contains touch-screen, and touch-screen is communicated with agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described agglomerating plant PLC control circuit contains PLC, PLC external circuits, signal acquisition circuit, auger drive unit control circuit, microwave source control circuit, air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, the body of heater bleeder valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described signal acquisition circuit contains input and is connected with the vacuum degree probe, the vacuum meter that output is connected with the PLC input, input is connected with temperature measurement probe, the temperature controller that output is connected with the PLC input is connected with temperature measurement probe with input, the pressure controller that output is connected with the PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the coil of A.C. contactor connects the output of PLC; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, and the coil of A.C. contactor connects the PLC output; Described touch-screen and agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

a kind of ferric phosphate lithium microwave heating single-furnace vertical continuous production equipment comprises charging aperture, the outer micro-wave screening insulation construction layer of body of heater, body of heater, microwave source, discharging mechanism cools, discharging opening, vacuum extractor, the protective gas input unit is characterized in that: the vertical continuous continuous producing apparatus of the single body of heater of described microwave heating also comprises the charging air-exchanging chamber, discharging air-exchanging chamber and equipment control circuit, body of heater are provided with the body of heater charging aperture, a certain number of microwave tube, at least one is advanced exhaust tube, the body of heater discharging opening, bleeder valve, the auger conveyer, at least each vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe, body of heater is the vertical hollow cylindrical of closed, its axis vertical cross-section is shaped as annular, the body of heater charging aperture is positioned at body of heater upper end one side, the body of heater discharging opening is positioned at body of heater bottom one side, the body of heater discharging opening is provided with bleeder valve, microwave source is arranged in the body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with the body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in body of heater with approximate coincidence of body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at the body of heater upper and lower end face respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe is arranged on inboard wall of furnace body top, be connected with the equipment control circuit corresponding circuits by data wire, charging aperture is communicated with the body of heater charging aperture by the charging air-exchanging chamber, and the body of heater discharging opening is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, body of heater, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, the discharging mechanism that cools is connected with the equipment control circuit corresponding circuits by data wire.

Body of heater axis and horizontal direction angle α, 80 °≤α≤100 °.

Described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with preliminary treatment body of heater charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering body of heater discharging opening, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

The invention has the beneficial effects as follows:

1, the conventional sintering method of LiFePO4 is mainly electrical heating method, and the method is utilized heat-conduction principle, begins heating from the outside and is transmitted to inside again, and heat transfer rate is slow, and production efficiency low frit rate of finished products is low.Use microwave sintering LiFePO4 (LiFePO ₄) greatly shortened sintering time, only have 20% left and right of conventional method, reduced sintering energy consumption, economize on electricity is more than 80%, and production cost significantly reduces.Microwave sintering preparation method of the present invention promotes the densification of interiors of products crystal grain, particle is tiny, distribution of particles is more even, effectively improves product quality, and final products have that purity is high, Stability Analysis of Structures, good cycle, electric conductivity and the superior characteristics of discharge performance.

2, the present invention has further optimized the ferric lithium phosphate precursor microwave sintering and has prepared LiFePO4 (LiFePO ₄) sintering process, increase preliminary treatment and pre-sintering process step, by the method that gradient is heated, effectively eliminated the moisture that contains in the presoma, control the conversion process of special complex compound in presoma, solved the key issue that product quality is controlled.The product testing result shows, rate of finished products is brought up to more than 90% by 80% left and right in past.

3, microwave sintering apparatus of the present invention is take microwave as thermal source, from LiFePO4 (LiFePO ₄) microwave sintering process set out, combine the advantage of conventional sintering stove, vacuum sintering furnace and microwave agglomerating furnace, minute 3 unit stoves are processed stage by stage, and sintering process is carried out the substep sequential control, fully realize technological requirement having guaranteed product quality.A plurality of unit stove is set has effectively improved sintering efficient, between a plurality of unit stove, material conveying device is set, a plurality of unit stove is connected into an integral body, thereby realize producing continuously, industrialization large-scale production becomes possibility.Under the effect of auger conveyer, material stirs mobile along the unit furnace body wall, material is heated evenly, and has accelerated the sintering of material, has guaranteed uniformity and the continuity of inlet amount, charging rate.Calculated by 3 hours whole sintering process time, but discharging every day 600kg at least compare with common monomer industrial microwave oven sintering process, production efficiency has improved more than 3 times, economize on electricity is more than 60%, rate of finished products was brought up to more than 90% by 80% of the past.Improved more than 5 times than the production efficiency of traditional sintering furnace about 20 hours, economized on electricity more than 80%, industrial-scale production efficient and economic benefits.

4, microwave sintering makes the product self-heating, has reduced to greatest extent the waste of energy, has improved operational environment; Charging, sintering, discharging are carried out continuously, do not need manually repeatedly to load and unload material, and production efficiency is high, and without dust from flying, health environment-friendly produces without " three wastes ", and clean production realized the hommization operational environment.

5, each unit body of heater surrounding is provided with at least one group of air inlet and passes in the unit body of heater; input top is provided with one group of exhaust outlet at least; be provided with microporous filter on gas port like this; both be convenient to input, got rid of protection or reaction atmosphere; prevented that dust from raising outward, effectively shielded microwave leakage.

6, equipment of the present invention is controlled and is adopted touch-screen and many PLC centralized control, realize the continuous production of Alternative step, improved automaticity and the craft precision of whole equipment, guaranteed the quality of product, realize industrial large-scale production, improved production efficiency.

7, touch-screen, PLC centralized control, man-machine interactive operation is intuitively easy, and equipment debugging is safeguarded simple, and the adjusting process parameter is convenient, reliable working performance.

Four, description of drawings:

Fig. 1 is the X-ray diffractogram that the embodiment of the present invention one is produced sample;

Fig. 2 is the electron microscope scanning figure that the embodiment of the present invention one is produced sample;

Fig. 3 is the particle size distribution figure that the embodiment of the present invention one is produced sample;

Fig. 4 is the X-ray diffraction analysis figure of the multiple batches of sample of the embodiment of the present invention one production;

Fig. 5 is ferric phosphate lithium microwave heating step type continuous production equipment structural representation of the present invention;

Fig. 6 is ferric phosphate lithium microwave heating step type continuous production equipment charging air-exchanging chamber structural representation of the present invention;

Fig. 7 is ferric phosphate lithium microwave heating step type continuous production equipment pretreatment unit furnace structure schematic diagram of the present invention;

Fig. 8 is ferric phosphate lithium microwave heating step type continuous production equipment presintering of the present invention unit furnace structure schematic diagram;

Fig. 9 is ferric phosphate lithium microwave heating step type continuous production equipment sintering of the present invention unit furnace structure schematic diagram;

Figure 10 is ferric phosphate lithium microwave heating step type continuous production equipment discharging air-exchanging chamber structural representation of the present invention;

Figure 11 is the ferric phosphate lithium microwave heating step type continuous production equipment of the present invention discharging mechanism structural representation that cools;

Figure 12 is the equipment control circuit schematic block diagram of ferric phosphate lithium microwave heating step type continuous production equipment of the present invention;

Figure 13 is the unit stove control circuit PLC connection circuit schematic diagram of ferric phosphate lithium microwave heating step type continuous production equipment of the present invention;

Figure 14 is the unit stove control circuit schematic diagram of ferric phosphate lithium microwave heating step type continuous production equipment of the present invention;

Figure 15 is lithium iron phosphate micro-wave heating horizontal continuous production equipment structural representation of the present invention;

Figure 16 is the horizontal continuous producing apparatus structural representation of ferric phosphate lithium microwave heating inclination of the present invention;

Figure 17 is ferric phosphate lithium microwave heating vertical continuous production equipment structural representation of the present invention;

Figure 18 is ferric phosphate lithium microwave heating deflection vertical continuous production equipment structural representation of the present invention;

Figure 19 is lithium iron phosphate micro-wave heating staggered vertical continuous production equipment structural representation of the present invention;

Figure 20 is lithium iron phosphate micro-wave heating staggered deflection vertical continuous production equipment structural representation of the present invention;

Figure 21 is the horizontal continuous producing apparatus structural representation of ferric phosphate lithium microwave heating single-furnace of the present invention;

Figure 22 is ferric phosphate lithium microwave heating single-furnace vertical continuous production equipment structural representation of the present invention.

in figure, the 1-charging aperture, 2-charging air-exchanging chamber, 3-pretreatment unit stove, 4-material transferring passage, 5-presintering unit stove, 6-sintering unit stove, 7-discharging air-exchanging chamber, the 8-discharging mechanism that cools, the 9-discharging opening, the 10-vacuum extractor, 11-protective gas input unit, 12-charging/bleeder valve, 13-vacuum degree is surveyed probe, 14-advances exhaust tube, 15-charging air-exchanging chamber hopper, 16-unit stove charging aperture, the outer micro-wave screening insulation construction layer of 17-unit body of heater, 18-unit body of heater, the 19-microwave source, the 20-microwave tube, 21-unit furnace discharge mouth, 22-unit furnace discharge valve, 23-auger conveyer, the 24-temperature measurement probe, 25-pressure measxurement probe, the 26-blast pipe, 27-auger conveyer drive unit, 28-discharging air-exchanging chamber hopper, 29-interlayer cover, the 30-Material pipeline, the 31-delivery port, the 32-water inlet, 33-pretreatment unit stove PLC control circuit, 34-presintering unit stove PLC control circuit, 35-sintering unit stove PLC control circuit, the 36-charging ventilation/discharging discharging PLC control circuit of taking a breath/cool, 37-unit stove signal acquisition circuit, 38-auger conveyer drive unit drive circuit, 39-microwave source control circuit, 40-air extractor control circuit.

Five, embodiment:

Embodiment one: be at first 200810237321.8 patent application according to inventor's application number, " preparation method of ferric lithium phosphate precursor and charging battery electrode thereof ", prepare ferric lithium phosphate precursor, then prepare LiFePO4 by the following steps microwave sintering:

(1), the preliminary treatment of ferric lithium phosphate precursor material: add in feed appliance by the speed of 50 kilograms per hour.The ferric lithium phosphate precursor material is distributed in the preprocessing furnace section 3 of sintering furnace by the auger conveyer, vacuumizes rear input nitrogen, in the non-oxide atmosphere environment of nitrogen protection, the heating of use microwave applicator, the heating gross power is 12kw, controls temperature at 90 ℃, heats 30 minutes;

(2), the presintering of ferric lithium phosphate precursor material: under nitrogen protection in non-oxide atmosphere environment, be distributed in pretreated ferric lithium phosphate precursor material in the pre-burning freezing of a furnace section 5 of sintering furnace by the auger conveyer, under nitrogen protection in non-oxide atmosphere environment, the heating of use microwave applicator, the heating gross power is 12kw, 230 ℃ for the treatment of temperatures, 30 minutes presintering time;

(3), the sintering of ferric lithium phosphate precursor material: under nitrogen protection in non-oxide atmosphere environment; be distributed in ferric lithium phosphate precursor material after presintering in the sintering furnace section 6 of sintering furnace by the auger conveyer; under nitrogen protection in non-oxide atmosphere environment; the heating of use microwave applicator; the heating gross power is 30kw, 550 ℃ for the treatment of temperatures, 120 minutes processing times; then be cooled to room temperature, obtain the LiFePO4 product.

As shown in Figure 1, the final LiFePO4 (LiFePO of gained ₄) product material is olivine structural through X-ray diffraction analysis, the JCPDS card belongs to the space group of rhombic system, shows that the present invention can access the LiFePO of olivine structural ₄Phase.Fig. 2 is the electron microscope scanning figure that the inventive method is produced sample, Fig. 3 is the particle size distribution figure that the inventive method is produced sample, from Fig. 2, Fig. 3 as can be known the present invention to produce the sample particle tiny, distribution of particles is more even, the largest particles is about 10 μ m, the sample granularity mainly is distributed in 4.5-7.5 μ m interval, the interiors of products crystal grain of the inventive method preparation is fine and close, purity is high, Stability Analysis of Structures, good cycle, electric conductivity and discharge performance superior.Fig. 4 is the X-ray diffraction analysis figure of the multiple batches of sample of the inventive method production, X-ray diffractogram of totally 10 batch products samples on the 23rd from July 2 to July, CrO2 occurs and do not determine that phase place, all the other product sample X-ray diffractograms of 9 batches all meet the LiFePO of olivine structural in the sample of producing July 3 ₄Phase, the finished product rate improves greatly.

Embodiment two: be at first 200810237321.8 patent application according to inventor's application number, " preparation method of ferric lithium phosphate precursor and charging battery electrode thereof ", prepare ferric lithium phosphate precursor, then prepare LiFePO4 by the following steps sintering:

(1), the preliminary treatment of ferric lithium phosphate precursor material: add in feed appliance by the speed of 60 kilograms per hour.15 kilograms of ferric lithium phosphate precursor materials are distributed in the preprocessing furnace section 3 of sintering furnace by the auger conveyer, and vacuumizing and making vacuum degree is 9 handkerchiefs, in non-oxide atmosphere environment, the heating of use microwave applicator, the heating gross power is 15kw, under 120 ℃, heats 15 minutes;

(2), the presintering of ferric lithium phosphate precursor material: in the non-oxide atmosphere environment of vacuum degree less than 10 handkerchiefs, be distributed in pretreated ferric lithium phosphate precursor material in the pre-burning freezing of a furnace section 5 of sintering furnace by the auger conveyer, be in the non-oxide atmosphere environment of 9 handkerchiefs in vacuum degree, the heating of use microwave applicator, the heating gross power is 15kw, 280 ℃ for the treatment of temperatures, 15 minutes presintering time;

(3), the sintering of ferric lithium phosphate precursor material: in the non-oxide atmosphere environment of vacuum degree less than 10 handkerchiefs, be distributed in ferric lithium phosphate precursor material after presintering in the sintering furnace section 6 of sintering furnace by the auger conveyer, be in the non-oxide atmosphere environment of 9 handkerchiefs in vacuum degree, the heating of use microwave applicator, the heating gross power is 30kw, 650 ℃ for the treatment of temperatures, 60 minutes processing times, then be cooled to room temperature, obtain the LiFePO4 product.

Embodiment three: be at first 200810237321.8 patent application according to inventor's application number, " preparation method of ferric lithium phosphate precursor and charging battery electrode thereof ", prepare ferric lithium phosphate precursor, then prepare LiFePO4 by the following steps sintering:

(1), the preliminary treatment of ferric lithium phosphate precursor material: add in feed appliance by the speed of 90 kilograms per hour.15Kg ferric lithium phosphate precursor material is distributed in the preprocessing furnace section 3 of sintering furnace by the auger conveyer, vacuumizes rear input argon gas, under argon shield, use the microwave applicator heating, the heating gross power is 15kw, under 90 ℃, heats 10 minutes;

(2), the presintering of ferric lithium phosphate precursor material: in the non-oxide atmosphere environment of argon shield, be distributed in pretreated ferric lithium phosphate precursor material in the pre-burning freezing of a furnace section 5 of sintering furnace by the auger conveyer, under nitrogen protection in non-oxide atmosphere environment, the heating of use microwave applicator, the heating gross power is 15kw, 260 ℃ for the treatment of temperatures, 10 minutes presintering time;

(3), the sintering of ferric lithium phosphate precursor material: in the non-oxide atmosphere environment of argon shield; be distributed in ferric lithium phosphate precursor material after presintering in the sintering furnace section 6 of sintering furnace by the auger conveyer; in the non-oxide atmosphere environment of nitrogen protection; the heating of use microwave applicator; the heating gross power is 30kw, 600 ℃ for the treatment of temperatures, 40 minutes processing times; then be cooled to room temperature, obtain the LiFePO4 product.

Embodiment four-embodiment 12: it is basic identical that embodiment four-embodiment ten diphosphonic acid iron lithium presomas prepare method and embodiment one to three method of lithium cell anode material of lithium iron phosphate, something in common no longer repeats, difference is that technological parameter is different, the below is illustrated with tabular form, specifically sees attached list 1.

Subordinate list 1:

embodiment 13: a kind of ferric phosphate lithium microwave heating step type continuous production equipment referring to Fig. 5-Figure 14, comprises charging aperture 1, charging air-exchanging chamber 2, pretreatment unit stove 3, presintering unit stove 5, sintering unit stove 6, discharging air-exchanging chamber 7, discharging mechanism 8 cools, discharging opening 9, vacuum extractor 10, protective gas input unit 11 and equipment control circuit, pretreatment unit stove 5, presintering unit stove 6, sintering unit stove 7 three overlaps the unit stove, contains equally unit stove charging aperture 16, the outer micro-wave screening insulation construction layer 17 of unit body of heater, unit body of heater 18, microwave source 19, number microwave tube 20, advance exhaust tube 14, unit furnace discharge mouth 21, auger conveyer 23 is installed each vacuum degree and is surveyed probe 13 in each unit body of heater, temperature measurement probe 24 and pressure measxurement probe 25, unit body of heater 19 is that the closed horizontal hollow is cylindric, its cross sectional shape is annular, charging aperture 16 is positioned at unit body of heater one end top, unit furnace discharge mouth 21 is positioned at body of heater other end bottom, unit, unit furnace discharge mouth 21 is provided with bleeder valve 22, microwave source 19 is arranged in unit body of heater outer periphery and is connected with microwave tube 20, microwave tube 20 is arranged on furnace body outer wall, advancing exhaust tube 14 is communicated with unit body of heater 19 inner chambers, be communicated with vacuum extractor 10 and protective gas input unit 11 by the band valve pipe, auger conveyer 23 axis and unit body of heater 19 axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit 27 that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe 13, temperature measurement probe 24 and pressure measxurement probe 25 is arranged on unit body of heater 19 inwall tops, is connected with the equipment control circuit corresponding circuits by data wire, the three horizontal layouts of the cover parallel step of unit stove horizontal slice, be communicated with by material transferring passage 4 order near verticals between the unit stove, charging aperture 1 is communicated with pretreatment unit stove charging aperture 16 near verticals by charging air-exchanging chamber 2, pretreatment unit furnace discharge mouth 21 is communicated with by material transferring passage 4 with the charging aperture 16 of presintering unit stove, the discharging opening 21 of presintering unit stove is communicated with by material transferring passage 4 with the charging aperture 16 of sintering unit stove, the discharging opening 21 of sintering unit stove is communicated with cool discharging mechanism 8 and discharging opening 9 by discharging air-exchanging chamber 7, unit stove 3, 5, 6, charging air-exchanging chamber 2, vacuum extractor 10, protective gas input unit 11, discharging air-exchanging chamber 7, discharging mechanism 8 cools, be connected with the equipment control circuit corresponding circuits by data wire.

Wherein, in each unit stove, microwave source 19 is connected with 6 groups of microwave tubes, every group of 3 microwave tube parallel connections, and microwave tube 20 is evenly arranged on unit body of heater 18 walls, wherein pretreatment unit stove 3, presintering unit stove 5 microwave source power are 15kw, and sintering unit stove 6 microwave source power are 100kw; Each unit body of heater 18 is provided with a blast pipe 26, is drawn into 14 mouthfuls of tracheaes and is equipped with microporous filter with 26 mouthfuls of blast pipes; Each unit body of heater 18 materials are quartz glass, and auger conveyer 23 is quartz glass.

Stove 6 unit body of heater length in sintering unit are 4 times of pretreatment unit stove, presintering unit body of heater length.

Charging air-exchanging chamber 2, comprise hopper 15, inlet valve 12, bleeder valve 12, vacuum degree detection probe 13 and advance exhaust tube 14, hopper 15 upper port are communicated with charging aperture 1, lower port is communicated with pretreatment unit stove charging aperture 16, hopper 15 upper and lower end sections are provided with respectively inlet valve 12 and bleeder valve 12, advance exhaust tube 14 openings and be arranged on hopper 15 upper inside wall, be communicated with vacuum extractor 10 by the band valve pipe, vacuum degree is surveyed probe 13 and is arranged on the hopper upper inside wall.

Discharging air-exchanging chamber 7, comprise hopper 28, bleeder valve 12, vacuum degree detection probe 13 and advance exhaust tube 14, the hopper upper port is communicated with sintering unit furnace discharge mouth 21, lower port is communicated with the discharging mechanism 9 that cools, bleeder valve 12 is located at hopper 28 bottoms, advance exhaust tube 14 openings and be arranged on hopper 28 upper inside wall, be communicated with vacuum extractor 10 by the band valve pipe, vacuum degree is surveyed probe 13 and is arranged on hopper 28 upper inside wall.

Discharging mechanism 8 cools, comprise interlayer cover 29, Material pipeline 30, water inlet 33, delivery port 31, auger conveyer 23, bleeder valve 12, Material pipeline 30 is stainless steel, interlayer cover 29 is wrapped on material conveying pipe 30 outer walls, the one end is provided with water inlet 32, the other end is provided with delivery port 31, auger conveyer 23 is arranged on material conveying pipe 30 inside, its two ends auger conveyer drive unit 27 outer with being located at the pipe ends face respectively are connected, and bleeder valve 12 is located at discharging opening 9 tops.

Equipment control circuit contains touch-screen, and touch-screen is communicated with 36 with pretreatment unit stove PLC control circuit 33, presintering unit stove PLC control circuit 34, sintering unit stove PLC control circuit 35, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus RS422/485; Pretreatment unit stove PLC control circuit 33, presintering unit stove PLC control circuit 34, sintering unit stove PLC control circuit 35, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit 37, auger drive unit control circuit 38, microwave source control circuit 39, air extractor control circuit 40; The PLC external circuits, contain the hand switch B2-B11 that is connected with input, the switching signal circuit of signal acquisition circuit 37, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil KF1, and protective gas is controlled ac contactor coil KF2, and ac contactor coil KF3 is controlled in venting, vacuum extractor is controlled ac contactor coil KM1, and microwave source is controlled ac contactor coil KA1-KA18 and indicator light L3-L14; Unit stove signal acquisition circuit 37 contains input and is connected with unit stove vacuum degree probe 13, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe 24, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe 25 with input, the pressure controller that output is connected with unit stove PLC input; Auger conveyer drive unit drive circuit 38 contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor SM1 and unit stove PLC; Microwave source control circuit 39, contain 18 microwave transformer T1-T18 that are connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch DZ2-DZ19 and three contact A.C. contactors on microwave transformer primary end input line, be respectively KA1-KA18, the output of the coil linkage unit stove PLC of A.C. contactor; Air extractor control circuit 40 contains the A.C. contactor KM1 that an end is connected with three phase mains, and the other end of A.C. contactor is connected with air extractor motor M 1 by circuit breaker DZ20, the coil linkage unit stove PLC output of A.C. contactor KM1.

Ferric phosphate lithium microwave heating step type continuous production equipment of the present invention is take microwave as thermal source, from LiFePO4 (LiFePO ₄) sintering process set out, combine the advantage of conventional sintering stove, vacuum sintering furnace and microwave agglomerating furnace, realize preliminary treatment, presintering and three technological processes of sintering, whole agglomerating plant is divided into 3 unit stoves, each unit stove is completed a technological process, and the material transferring passage is set between the unit stove, a plurality of unit stove is connected into an integral body realize producing continuously, can raise the efficiency like this improving yield.As Fig. 5, Fig. 7-shown in Figure 9, three unit furnace bodies 18 are airtight cylindrical shape, and the body of heater material is quartz glass, and furnace diameter is 250mm approximately, pretreatment unit stove 3 and presintering unit stove 5 length are 4m approximately, sintering unit stove 6 length are about 16m, and quartz glass tubular structure is simpler than thorax structure in the stainless steel of traditional microwave sintering furnace, and the body of heater Integral sealing is better, microwave source is evenly distributed on furnace body outer wall, microwave sees through body of heater and adds thermal material, can reduce lossy microwave, improves the efficiency of heating surface.Body of heater outer micro-wave screening insulation construction layer 17 in unit is sandwich construction, and what internal layer and body of heater 18 were complementary is microwave shielding layer, adopts stainless steel material processing, and micro-wave screening is effective, can prevent microwave leakage; Screen is outward the heat-insulation layer by the insulation material parcel, reduces the loss of heat.The unit stove reaches non-oxide atmosphere; need to be to vacuumizing in stove and input protection gas; each unit stove is provided with into exhaust tube 14 and is communicated with unit body of heater inner chamber; be communicated with vacuum extractor 10 and protective gas input unit 11 by the band valve pipe; valve is gas solenoid valve; before being arranged on respectively vacuum extractor and protective gas input unit, the switching signal of the opening of gas solenoid valve, closed output circuit output by each unit stove PLC is controlled.In the conventional sintering stove, the transmission of sintered material generally realizes by push pedal, conveyer belt, but this mode often causes whole furnace sealing hydraulic performance decline, complex structure, cost is expensive, in production process, the protective gas loss is larger, the problem of product quality shakiness, mass transport in the present invention in stove, realize by the auger conveyer 23 that is located in stove, mass transport between the unit stove, by the material self gravitation, entered in next body of heater by bleeder valve 22 controls by approximately perpendicular material transferring passage; Auger conveyer 23 and the parallel installation of body of heater axis in the unit stove, under its helical blade, the edge is adjoint with the bottom of furnace body inwall, material under helical blade promotes constantly upset end in the stove move to the other end, the auger conveyer two ends drive unit 27 outer with being located at the unit body of heater respectively are connected, drive unit 27 is the servomotor that unit stove PLC controls, also can use motor, speed changer, speed regulating device to realize, by servomotor is controlled, the auger conveyer keeps the rotating speed of 0.5-1 rev/min, and material is steadily moved at a slow speed in body of heater; Auger conveyer 23 is quartz glass for material, and the microwave transmitance is good, and loss is little; Each stove inwall top, unit is provided with vacuum degree and surveys probe 13, temperature measurement probe 24 and pressure measxurement probe 25, and vacuum degree signal, temperature signal, pressure signal that probe gathers link by signal acquisition circuit 37 and unit stove PLC input; Each unit body of heater is provided with a blast pipe 26, and blast pipe one end is equipped with exhaust solenoid valve, is controlled by unit stove PLC, is drawn into gas tube orifice with exhaust pipe mouth is provided with microporous filter, reduces the pollution in production; Discharging opening 21 in each unit stove is provided with unit furnace discharge valve 22, control transmission and the process of material, bleeder valve 22 is the driven plate valve, also can select electric gate valve, electrical ball valve, electric butterfly valve, electronic bleeder valve, the opening and closing of unit furnace discharge valve are controlled by the switching signal of unit stove PLC output.

Each unit stove microwave source 19 adopts 6 groups of microwave tubes to be connected, the structure of every group of 3 microwave tube parallel connections, microwave tube can adopt the industrial magnetron of 0.8kw/2450MHz, this many group microwave tube power synthesis modes, guarantee that in stove, microwave heating is even, heating-up temperature, power are controlled accurately; Whole microwave source is provided with temperature protective device, can the long-time continuous stable reliably working.

Charging air-exchanging chamber 2, discharging air-exchanging chamber 7 guarantee in the equipment continuous flow procedure, can not destroy the non-oxygen environment in the unit stove when dropping into raw material, product discharge, realize producing continuously.As Fig. 6, shown in Figure 10, charging air-exchanging chamber 2 is provided with hopper 15, inlet valve 12, bleeder valve 12,13 and one of vacuum degree probes advance exhaust tube 14, airtight hopper inner chamber adopts stainless steel processing, cross sectional shape is square, also can do as required circular or rectangle, inlet valve 12 is established in hopper 15 upper ends, and bleeder valve 12 is established in the bottom, and inlet valve, bleeder valve are the driven plate valve, also can select electric gate valve, electrical ball valve, electric butterfly valve, electronic bleeder valve, the opening and closing of material valve are controlled by the switching signal of PLC output; Vacuum degree probe 13, operation principle and each unit stove identical of advancing exhaust tube 14, effect is under the hopper closed state, the non-oxygen environment of vacuumize, the formation of input protection gas is consistent with the unit stove.Structure and the course of work of the structure of discharging air-exchanging chamber 7 and charging air-exchanging chamber are basic identical, and because the bleeder valve with sintering unit stove is connected, the discharging air-exchanging chamber is not established inlet valve.

The discharging mechanism 8 that cools can make the final products fast cooling after completing last sintering process flow process, guarantee to produce continuously.As shown in figure 11, the discharging mechanism that cools adopts water-cooling pattern, mass transport is used the auger conveyer, and Material pipeline 30 is stainless steel, and length is 6m, interlayer cover 29 is wrapped on Material pipeline 30 outer walls, the one end is provided with water inlet 32, and the other end is provided with delivery port 31, sets the flow 80L/min of water, water inlet is controlled and is controlled by the electromagnetic water valve that is located at the water inlet, and the opening and closing of electromagnetic water valve are controlled by the switching signal of PLC output; Auger conveyer drive unit 27 is the servomotor that PLC controls, and also can use motor, speed changer, speed regulating device to realize; Bleeder valve 12 is the driven plate valve, also can select electric gate valve, electrical ball valve, electric butterfly valve, electronic bleeder valve, and the opening and closing of material valve are controlled by the switching signal of PLC output.

Equipment control circuit adopts the circuit structure of the many PLC of touch-screen centralized control, realizes the automatic control of whole equipment.As shown in figure 12, wherein touch-screen is MT500 type touch-screen, touch-screen is communicated with pretreatment unit stove PLC control circuit 33, presintering unit stove PLC control circuit 34, sintering unit stove PLC control circuit 35, the charging ventilation/discharging discharging PLC control circuit 36 of taking a breath/cool respectively by the RS422/485 data/address bus, the procedure parameter of equipment, processing parameter setting, control program, the programming of PLC all can be undertaken by the man-machine interface of touch-screen.PLC adopts Delta DVP40ES200RT type PLC, its input and output number number average is 24 points, pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, circuit structure and function are basic identical, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit 37, auger drive unit control circuit 38, microwave source control circuit 39, air extractor control circuit 40.

As shown in figure 13, unit 24 input points of stove PLC input are connected with ten hand switches of B2-B11, S3, and S5-S10 connects the switching signal of signal acquisition circuit.B2 connects PLC input X0, control hand switch for air extractor, B3 connects X1, is the exhaust solenoid valve hand switch, B4 connects X2, be microwave group 1 hand switch, B5 connects X3, is microwave group 2 hand switches, B6 connects X4, be microwave group 3 hand switches, B7 connects X5, is microwave group 4 hand switches, B8 connects X6, be microwave group 5 hand switches, B9 connects X7, is microwave group 6 hand switches, B10 connects X17, be auger conveyer drive unit hand switch, B11 connects X18, is unit furnace discharge valve hand switch; It is when equipment emerged in operation abnormal conditions that hand switch is set, and manually stops or using when starting relevant device.S3 connects PLC input X10, is temperature switch, and S5, S6 connect X11, X12, be the temperature controller output switching signal, S7, S8 connect X13, X14, are the vacuum meter output switching signal, S9, S10 connect X15, X16, are the pressure controller output switching signal.Y0-Y18 in 24 input points of PLC output, wherein Y0-Y3 connects servo-driver, and Y4 linkage unit furnace discharge valve is controlled ac contactor coil KF1, and KF1 is parallel with indicator light L3; Y5 connects protective gas and controls ac contactor coil KF2, i.e. electromagnetic gas valve coil, and KF2 is parallel with indicator light L4; Y6 connects venting and controls ac contactor coil KF3, i.e. electromagnetic gas valve coil, and KF3 is parallel with indicator light L5; Y7 connects vacuum pump and controls ac contactor coil KM1; Y10-Y12 connects respectively temperature indicator L6, vacuum degree indicator light L7, pressure indicator light L8; Y13-Y18 connects respectively six microwave groups and controls ac contactor coil KA1-3, KA4-6, and KA7-9, KA10-12, KA13-15, it is L9-L14 that KA16-18 and each coils from parallel connection of coils have indicator light.

Unit stove signal acquisition circuit 37, as shown in figure 14, containing input is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, the vacuum degree probe signal enters vacuum meter, compare with the vacuum degree higher limit of setting, lower limit, reach in limited time, switching signal of vacuum meter upper limit output output enters the X13 input of PLC; Reach in limited time lower, switching signal of vacuum meter lower limit output output enters the X14 input of PLC; The course of work of temperature controller, pressure controller is the same with vacuum meter, temperature controller upper limit output, lower limit output connect respectively X11, the X12 input of PLC, and pressure controller upper limit output, lower limit output connect respectively X11, the X12 input of PLC.

Auger conveyer drive unit drive circuit 38, contain as shown in figure 14 the servo-driver that an end is connected with two-phase power supply, its control signal input is connected with unit stove PLC output X0-X3, servo-driver connects servomotor SM1, servomotor is as the drive unit of unit stove auger conveyer, and control precision is high, and equipment connection is simple, technology maturation, good reliability; Circuit breaker DZ21 provide overcurrent protection.

microwave source control circuit 39, as shown in figure 14, contain 18 microwave transformer T1-T18 that are connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, each microwave tube circuit contains a microwave tube G1-G18, be in series with a contact of temperature control protection switch and three A.C. contactors on each microwave transformer primary end input line, three contacts are one group, controlled by three contact A.C. contactors, 3 one group 6 groups altogether of 18 microwave tubes, the ac contactor contact adhesive is controlled by PLC, by controlling the adhesive of corresponding A.C. contactor, start one group of corresponding three microwave tube, different microwave tube combinations realizes that power is synthetic.The temperature detect switch (TDS) effect is to surpass in limited time in the microwave tube working temperature, open circuit, and the protection microwave tube can not burn out.

Air extractor control circuit 40; as shown in figure 14; contain the A.C. contactor KM1 that an end is connected with three phase mains; the other end of A.C. contactor is connected with air extractor motor M 1 by circuit breaker DZ20; the coil linkage unit stove PLC output of A.C. contactor KM1; the motor M of bleeding 1 is three phase electric machine, and M1 starts the control signal control by PLC output, and circuit breaker DZ20 provides overcurrent protection for motor M 1.

Charging ventilation/discharging discharging PLC the control circuit 36 of taking a breath/cool; the control of the charging/bleeder valve that relates to, vacuum degree signals collecting, vacuumize, structure, the operation principle of interlock circuit is basic identical in the process control such as input protection gas, current are controlled, the driving of auger conveyer and unit stove, no longer draw and illustrate and repeat.

in actual production, at first be 200810237321.8 patent application according to inventor's application number, " preparation method of ferric lithium phosphate precursor and charging battery electrode thereof ", prepare ferric lithium phosphate precursor, add in feed appliance by the speed of 50 kilograms per hour, add the 25KG ferric lithium phosphate precursor, be numbered material A, drop into ferric phosphate lithium microwave heating step type continuous production equipment charging aperture 1 of the present invention, each unit stove under the equipment initial condition, air-exchanging chamber charging/discharging valve plate all is in the closing seam state, at first equipment control circuit is opened charging air-exchanging chamber inlet valve 12, the presoma material A enters hopper 15, then the closure of feed valve 12, open the front electromagnetic gas valve of pump, formation vacuumizes path and starts vacuum extractor 10 by being drawn into gas port 14, the charging air-exchanging chamber is vacuumized, after determining to reach setting vacuum degree according to the data of 13 detections of vacuum degree detecting head in the charging air-exchanging chamber, stop bleeding, complete fill process.then preprocessing furnace 3 unit bodies of heater 18 are vacuumized, after vacuum degree detection probe 13 detects and reaches set point, open charging air-exchanging chamber bleeder valve 12, the presoma material falls into preprocessing furnace 3 unit bodies of heater 18 through unit stove charging aperture 16, after material all enters the pretreatment unit stove, close charging air-exchanging chamber bleeder valve, open the preposition electromagnetic gas valve of protective gas input unit, enter by being drawn into tracheae 14 input nitrogen the unit body of heater 18 that vacuumizes, after body of heater internal pressure measuring probe 25 measurement data determining unit body of heater internal pressures in unit reach normal pressure, close preposition electromagnetic gas valve and stop gas transmission, start microwave source 19, start 6 groups of microwave tubes that are located at body of heater outside, unit by equipment control circuit, setting the heating gross power is 12kw, material is heated, reach 90 ℃ of temperature, start the auger conveyer, controlling auger conveyer rotating speed by the drive unit servomotor is per minute 1 to turn, material steadily moves to the body of heater other end under packing auger blade promotes, after 30 minutes, whole materials arrive furnace discharge mouth place, unit.Carry out in the pretreating process process in material A, then get the 25KG ferric lithium phosphate precursor, be numbered material B, drop into the agglomerating plant charging aperture, enter charging air-exchanging chamber hopper, the sealing air-exchanging chamber vacuumizes air-exchanging chamber, and material B is pending in charging air-exchanging chamber hopper.

The material A pretreating process later stage, to presintering unit stove evacuation, after reaching set point, input nitrogen by the protective gas input unit in presintering unit body of heater, reach normal pressure.Material A is completed pretreating process, material to unit furnace discharge mouth end is concentrated, open unit furnace discharge valve 22, material is under the self gravitation effect, fall into the pre-burning freezing of a furnace by material conveying passage 4, the auger conveyer of pretreatment unit stove improves rotating speed, leftover materials is pushed discharging opening fall in the pre-burning freezing of a furnace, and pretreatment unit furnace discharge valve is closed.After material enters the pre-burning freezing of a furnace, start microwave source 19, start 6 groups of microwave tubes that are located at body of heater outside, unit by equipment control circuit, setting the heating gross power is 12kw, and material is heated, and reaches 230 ℃ of temperature, start the auger conveyer, it is per minute 1 to turn that the drive unit servomotor is controlled auger conveyer rotating speed, and material steadily moves to the body of heater other end under packing auger blade promotes, after 30 minutes all materials arrive furnace discharge mouth place, unit.

After material A entered the pre-burning freezing of a furnace fully, after the bleeder valve closure of pretreatment unit stove, the material B in charging air-exchanging chamber hopper entered the pretreating process that the pretreatment unit stove carries out, and all have material in pretreatment unit stove and presintering unit stove this moment.Carry out in the pretreating process process at material B, then get the 25KG ferric lithium phosphate precursor, be numbered material C, drop into the agglomerating plant charging aperture, enter charging air-exchanging chamber hopper, the sealing air-exchanging chamber vacuumizes air-exchanging chamber, and material C is pending in charging air-exchanging chamber hopper.

In the material A pre-sintering process later stage, equipment control circuit starts vacuum extractor to sintering unit stove evacuation, and after reaching set point, the protective gas input unit is inputted nitrogen in presintering unit body of heater, reach normal pressure.Material A is completed pre-sintering process, material to unit furnace discharge mouth end is concentrated, open unit furnace discharge valve 22, material is under the self gravitation effect, fall into sintering furnace by material conveying passage 4, the auger conveyer of presintering unit stove improves rotating speed, leftover materials is pushed discharging opening fall in sintering furnace, and presintering unit furnace discharge valve is closed.after material enters the pre-burning freezing of a furnace, start microwave source 19, start 6 groups of microwave tubes that are located at body of heater outside, unit by equipment control circuit, setting the heating gross power is 30kw, material is heated, reach 550 ℃ of temperature, start the auger conveyer, it is per minute 1 to turn that the drive unit servomotor is controlled auger conveyer rotating speed, material steadily moves to the body of heater other end under packing auger blade promotes, sintering furnace length is 16m, be preprocessing furnace, 4 times of presintering furnace length, in the situation that auger conveyer rotating speed is identical, material end in the stove reaches the other end needs the above two 4 times of times, after namely 120 minutes, whole materials arrive furnace discharge mouth place, unit.In the material A sintering process, material B carries out pre-sintering process in the pre-burning freezing of a furnace processes, and material C carries out pretreating process in the pretreatment unit stove processes, then gets the 25KG ferric lithium phosphate precursor, is numbered material D, enters in charging air-exchanging chamber hopper pending.After material B, C completed treatment process, equipment control circuit was closed microwave heating and the auger conveyer of pretreatment unit stove and presintering unit stove, waited for that material A sintering processes technique completes.

In the material A sintering process later stage, equipment control circuit starts vacuum extractor the discharging air-exchanging chamber is vacuumized, and stops after reaching set point.After material A is completed sintering, material to unit furnace discharge mouth end is concentrated, open unit furnace discharge valve 22, material is under the self gravitation effect, fall into the discharging air-exchanging chamber, the auger conveyer of sintering unit stove improves rotating speed, leftover materials is pushed discharging opening fall in the discharging air-exchanging chamber, and sintering unit furnace discharge valve is closed.After discharging is completed, sintering unit furnace discharge valve is closed, the bleeder valve of pre-burning freezing of a furnace unit stove is opened, unit stove auger conveyer enters material B discharge unit furnace discharge mouth in sintering furnace by the material transferring passage, close presintering unit furnace discharge valve, material B carries out sintering process in sintering furnace processes.After the presintering bleeder valve cuts out, material C in the pretreatment unit stove enters in presintering unit stove through the material transferring passage, carry out presintering, material D in the charging air-exchanging chamber is after the bleeder valve of pretreatment unit stove cuts out, enter and carry out pretreating process in the pretreatment unit stove, get again the 25KG ferric lithium phosphate precursor, be numbered material E, enter in charging air-exchanging chamber hopper pending.

Material A enters the hopper of discharging air-exchanging chamber, after sintering unit furnace discharge valve closure, equipment control circuit is opened the bleeder valve of discharging air-exchanging chamber, material falls in the Material pipeline 31 of the mechanism 8 that cools in the self gravitation effect, after material A enters feed tube fully, the bleeder valve of closed discharging air-exchanging chamber 7.The auger conveyer pushes material and moves to discharge port end, accelerates heat exchange with tube wall, and feed tube is provided with the interlayer cover outward, the flow velocity of opening electromagnetic water valve cooling water 80L/min enters the interlayer cover by water inlet, flow out from delivery port, take away the heat of feed tube tube wall, shorten cooling the time.Material is transferred device and pushes to discharge port end after a period of time, control circuit cuts out electromagnetic water valve and stops cooling water, open bleeder valve and improve auger conveyer rotating speed, push the LiFePO4 final products and enter the product storeroom from discharging opening 9, material A is completed whole sintering processes.This moment pretreatment unit stove, presintering unit stove, sintering unit stove all has material to process, and whole microwave sintering apparatus enters continuous production status, and repetitive cycling is carried out above each technological process, realizes that heavy industrialization produces continuously.

Ferric phosphate lithium microwave heating step type continuous production equipment of the present invention arranges a plurality of unit stove, can effectively improve sintering efficient, realize producing continuously, carry out industrialization large-scale production, calculated by 3 hours whole sintering process time, 600kg at least can manufacture a finished product every day, compare with common monomer industrial microwave oven sintering process, production efficiency has improved more than 3 times, and economize on electricity is more than 60%, and rate of finished products was brought up to more than 90% by 80% of the past.Improved more than 5 times than the production efficiency of traditional sintering furnace about 20 hours, economized on electricity more than 80%, industrial-scale production efficient and economic benefits.

Embodiment 14: a kind of ferric phosphate lithium microwave heating step type continuous production equipment, originally identical with the embodiment tritriacontyl, description of drawings no longer, content is identical, something in common no longer repeats, difference is that pretreatment unit stove, furnace discharge mouth place, presintering unit do not establish bleeder valve, needs when in production, material enters the unit stove three unit stoves while integral body are vacuumized to be filled with protective gas; Each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Sintering unit body of heater length is 3 times of pretreatment unit body of heater, presintering unit body of heater length.

Embodiment 15: a kind of ferric phosphate lithium microwave heating step type continuous production equipment, originally identical with the embodiment tritriacontyl, description of drawings no longer, content is identical, something in common no longer repeats, difference is that pretreatment unit stove 3, presintering unit stove 5 discharging opening places do not establish bleeder valve, and bleeder valve is located on the material transferring passage that connects presintering unit stove, sintering unit stove charging aperture; In each unit stove, auger conveyer material is stainless steel material; In each unit stove, microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Sintering unit body of heater length is 5 times of pretreatment unit body of heater, presintering unit body of heater length.

Embodiment 16: a kind of lithium iron phosphate micro-wave heating horizontal continuous production equipment, referring to Figure 15, number identical with embodiment 13, content is identical, and something in common no longer repeats, and difference is pretreatment unit stove 3, presintering unit stove 5 and sintering unit stove 6, the valve plate of the bleeder valve of each unit stove is the arc that mates with the unit body of heater, three overlap unit stove Horizontal type arranges, between the unit stove, discharging opening directly is communicated with charging aperture successively, and the material transferring passage is not set.The operation of whole equipment and production procedure and embodiment tritriacontyl are originally identical, no longer repeat.

Embodiment 17: a kind of lithium iron phosphate micro-wave heating horizontal continuous production equipment, this is identical with the embodiment palmityl, description of drawings no longer, and content is identical, something in common no longer repeats, and difference is that pretreatment unit stove 3, presintering unit stove 5 discharging opening places do not establish bleeder valve; Each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Sintering unit body of heater length is 3 times of pretreatment unit body of heater, presintering unit body of heater length.

Embodiment 18: a kind of ferric phosphate lithium microwave heating horizontal continuous producing apparatus that tilts, referring to Figure 16, to number identically with embodiment 16, and the content something in common no longer repeats.Difference is pretreatment unit stove 3, presintering unit stove 5 and sintering unit stove 6, and each unit body of heater is closed inclination hollow cylindrical, and its axis vertical cross-section is shaped as annular, and each unit tilting furnace arranges, the inclination angle is α, α=8 °.

Embodiment 19: a kind of lithium iron phosphate micro-wave heating horizontal continuous production equipment, this is identical with the embodiment octadecyl, description of drawings no longer, and content is identical, something in common no longer repeats, and difference is that pretreatment unit stove 3, presintering unit stove 5 discharging opening places do not establish bleeder valve; Each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Sintering unit body of heater length is 3 times of pretreatment unit body of heater, presintering unit body of heater length.

Embodiment 20: a kind of ferric phosphate lithium microwave heating horizontal continuous producing apparatus that tilts, and this is identical with the embodiment octadecyl, no longer description of drawings, the content something in common no longer repeats, difference is that each unit tilting furnace arranges, the inclination angle is α, α=15 °; In each unit stove, auger conveyer material is stainless steel material; In each unit stove, microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Sintering unit body of heater length is 5 times of pretreatment unit body of heater, presintering unit body of heater length.

Embodiment 21: a kind of ferric phosphate lithium microwave heating horizontal continuous producing apparatus that tilts, and this is identical with the embodiment octadecyl, no longer description of drawings, the content something in common no longer repeats, difference is that each unit tilting furnace arranges, the inclination angle is α, α=30 °.

embodiment 22: a kind of ferric phosphate lithium microwave heating vertical continuous production equipment, referring to Figure 17, number identical with embodiment 13, content is identical, something in common no longer repeats, difference is pretreatment unit stove 3, presintering unit stove 5 and sintering unit stove 6, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, three cover unit furnace length are basic identical, charging aperture is positioned at body of heater upper surface, unit one side, unit furnace discharge mouth is positioned at body of heater lower surface, unit one side, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, on it, lower two ends respectively be located on the unit body of heater, the drive unit of lower surface is connected, vacuum degree is surveyed probe 13, temperature measurement probe 24 and pressure measxurement probe 25 are arranged on inboard wall of furnace body top, unit.The three vertical verticals of cover unit stove, the material transferring passage by near vertical between the unit stove sequentially is communicated with, and between each unit stove, the material transferring channel cross-section is shaped as fan-shaped.The operation of whole equipment and production procedure and embodiment tritriacontyl are originally identical, something in common no longer repeats, difference is that material enters in the unit stove, material falls in body of heater, start microwave applicator and carry out sintering processes, auger conveyer 23 is continuous forward, counter-rotating upset, stirring material under drive unit 27 drives, and makes heating material even.

Embodiment 23: a kind of ferric phosphate lithium microwave heating vertical continuous production equipment, originally identical with the embodiment docosyl, description of drawings no longer, the content something in common no longer repeats, difference is that each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Between each unit stove, the material transferring channel cross-section is shaped as circle.

Embodiment 24: a kind of ferric phosphate lithium microwave heating vertical continuous production equipment, and this is identical with the embodiment docosyl, description of drawings no longer, the content something in common no longer repeats, and difference is that in each unit stove, auger conveyer material is stainless steel material; In each unit stove, microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Between each unit stove, the material transferring channel cross-section is shaped as rectangle.

Embodiment 25: a kind of ferric phosphate lithium microwave heating deflection vertical continuous production equipment, referring to Figure 18, to number identically with embodiment 22, and the content something in common no longer repeats.Difference is pretreatment unit stove 3, presintering unit stove 5 and sintering unit stove 6, each unit body of heater is closed inclination hollow cylindrical, and its axis vertical cross-section is shaped as annular, the parallel deflection vertical of each unit stove, angle of deviation is α, α=85 °.The operation of whole equipment and production procedure and embodiment docosyl are originally identical, no longer repeat.

Embodiment 26: a kind of ferric phosphate lithium microwave heating deflection vertical continuous production equipment, and this is identical with the embodiment pentacosyl, no longer description of drawings, the content something in common no longer repeats, difference is that each unit tilting furnace arranges, the inclination angle is α, α=80 °; Each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Between each unit stove, the material transferring channel cross-section is shaped as circle.

Embodiment 27: a kind of ferric phosphate lithium microwave heating deflection vertical continuous production equipment, originally identical with the embodiment pentacosyl, description of drawings no longer, the content something in common no longer repeats, difference is each unit tilting furnace layout, the inclination angle is α, α=95 °, and each unit furnace discharge mouth is located at a side; In each unit stove, auger conveyer material is stainless steel material; In each unit stove, microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections; Between each unit stove, the material transferring channel cross-section is shaped as rectangle.

Embodiment 28: a kind of ferric phosphate lithium microwave heating deflection vertical continuous production equipment, originally identical with the embodiment pentacosyl, description of drawings no longer, the content something in common no longer repeats, difference is each unit tilting furnace layout, the inclination angle is α, α=100 °, and each unit furnace discharge mouth is located at a side.

embodiment 29: a kind of lithium iron phosphate micro-wave heating staggered vertical continuous production equipment, referring to Figure 19, number identical with embodiment 13, content is identical, something in common no longer repeats, difference is pretreatment unit stove 3, presintering unit stove 5 and sintering unit stove 6, each unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, charging aperture is positioned at body of heater upper end, unit one side, unit furnace discharge mouth is positioned at body of heater bottom, unit one side, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, on it, lower two ends respectively be located on the unit body of heater, the drive unit of lower surface is connected, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit.Three overlap unit stove parallel vertical vertical, and the material transferring passage by the oblique angle β that dips down between the unit stove sequentially is communicated with, and angle of inclination beta is 35 °.The operation of whole equipment and production procedure and embodiment docosyl are originally identical, no longer repeat.

Embodiment 30: a kind of lithium iron phosphate micro-wave heating staggered vertical continuous production equipment, this is identical with the embodiment nonacosyl, description of drawings no longer, and the content something in common no longer repeats, difference downward-sloping material transferring passage between the unit stove, angle of inclination beta is 50 °; Each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

Embodiment 31: a kind of lithium iron phosphate micro-wave heating staggered vertical continuous production equipment, this is identical with the embodiment nonacosyl, description of drawings no longer, and the content something in common no longer repeats, difference downward-sloping material transferring passage between the unit stove, angle of inclination beta is 60 °; In each unit stove, auger conveyer material is stainless steel material; In each unit stove, microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

Embodiment 32: a kind of lithium iron phosphate micro-wave heating staggered deflection vertical continuous production equipment, referring to Figure 20, number identical with embodiment 29, content is identical, something in common no longer repeats, difference is pretreatment unit stove 3, presintering unit stove 5 and sintering unit stove 6, the three parallel deflection verticals of cover unit stove, angle of deviation is α, be unit body of heater axis downwards and the horizontal direction angle, α=85 °, the material transferring passage that is β by the oblique angle that dips down between the unit stove sequentially is communicated with, and angle of inclination beta is 45 °.The operation of whole equipment and production procedure and embodiment nonacosyl are originally identical, no longer repeat.

Embodiment 33: a kind of lithium iron phosphate micro-wave heating staggered deflection vertical continuous production equipment, originally identical with the embodiment dotriacontyl, description of drawings no longer, the content something in common no longer repeats, difference is downward and horizontal direction angle at unit body of heater axis, α=80 °, downward-sloping material transferring passage between the unit stove, angle of inclination beta is 30 °; Each unit body of heater material is ceramic material, and in each unit stove, auger conveyer material is steel structure surface lining ceramic material; In each unit stove, microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

Embodiment 34: a kind of lithium iron phosphate micro-wave heating staggered deflection vertical continuous production equipment, originally identical with the embodiment dotriacontyl, description of drawings no longer, the content something in common no longer repeats, difference is unit body of heater axis downwards and the horizontal direction angle, α=100 °, downward-sloping material transferring passage between the unit stove, angle of inclination beta is 60 °, and each unit furnace discharge mouth is located at a side; In each unit stove, auger conveyer material is stainless steel material; In each unit stove, microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

embodiment 35: the horizontal continuous producing apparatus of a kind of ferric phosphate lithium microwave heating single-furnace, referring to Figure 21, charging aperture, the charging air-exchanging chamber, consistent in discharging air-exchanging chamber structure and function and embodiment 13, difference is that the single body of heater vertical continuous production equipment of microwave heating realizes the function of three unit stove sintering furnaces by single body of heater, in its structure and embodiment 13, the structure of unit stove is basically identical, difference is that microwave source power is 30～100kw, can be according to technique needs Modulating Power parameter, single-unit furnace body of heater length is 4m, body of heater axis and horizontal line angle α, α=0 °, equipment control circuit contains agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool.In concrete production, material enters in body of heater, in the non-oxide atmosphere environment of nitrogen protection, control circuit starts microwave tube, and material is heated, and controlling the heating gross power is 12kw, control temperature at 90 ℃, under auger conveyer blade advanced, material was passed other end discharge port end from the body of heater feed inlet end and is completed pretreating process at 30 minutes; Then carry out the pre-sintering process flow process, control microwave tube heating gross power is 12kw, 230 ℃ for the treatment of temperatures, and the counter-rotating under drive unit drives of auger conveyer makes material oppositely move 30 minutes to the feeding mouth end, carries out sintering process after completing and processes; Controlling microwave tube heating gross power is 30kw, 550 ℃ for the treatment of temperatures, auger conveyer forward pushes 30 minutes materials to discharge port end, keep microwave heating power and treatment temperature, 30 minutes materials of auger conveyer counter-rotating are to feed inlet end, and above process 2 times repeatedly heated altogether 120 minutes, obtain the LiFePO4 product, rear discharging at last cools.

Embodiment 36: the horizontal continuous producing apparatus of a kind of ferric phosphate lithium microwave heating single-furnace, this is identical with embodiment three pentadecyls, description of drawings no longer, and the content something in common no longer repeats, difference is body of heater axis and horizontal direction angle α, α=5 °; The body of heater material is ceramic material, and in stove, auger conveyer material is steel structure surface lining ceramic material; Microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

Embodiment 37: the horizontal continuous producing apparatus of a kind of ferric phosphate lithium microwave heating single-furnace, this is identical with embodiment three pentadecyls, description of drawings no longer, and the content something in common no longer repeats, difference is body of heater axis and horizontal direction angle α, α=10 °; In stove, auger conveyer material is stainless steel material; Microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

embodiment 38: a kind of ferric phosphate lithium microwave heating single-furnace vertical continuous production equipment, referring to Figure 22, number identical with embodiment 35, content is identical, something in common no longer repeats, difference is the vertical hollow cylindrical of closed at body of heater, body of heater axis and horizontal direction angle α, α=90 °, its axis vertical cross-section is shaped as annular, the body of heater charging aperture is positioned at body of heater upper end, unit one side, unit furnace discharge mouth is positioned at body of heater bottom, unit one side, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, on it, lower two ends respectively be located on the unit body of heater, the drive unit of lower surface is connected, vacuum degree is surveyed probe 13, temperature measurement probe 24 and pressure measxurement probe 25 are arranged on inboard wall of furnace body top, unit.In concrete production, material enters in body of heater, and in the non-oxide atmosphere environment of nitrogen protection, control circuit starts microwave tube, material is heated, and controlling the heating gross power is 12kw, controls temperature at 90 ℃, under auger conveyer forward, counter-rotating are stirred, heated 30 minutes, complete pretreating process; Then carry out the pre-sintering process flow process, controlling microwave tube heating gross power is 12kw, 230 ℃ for the treatment of temperatures, and material is stirred in auger conveyer forward, counter-rotating, heats 30 minutes, carries out sintering process after completing and processes; Controlling microwave tube heating gross power is 30kw, 550 ℃ for the treatment of temperatures, and the auger conveyer stirs material, heats 120 minutes, obtains the LiFePO4 product, and rear discharging at last cools.

Embodiment 39: a kind of ferric phosphate lithium microwave heating single-furnace vertical continuous production equipment, originally identical with embodiment three octadecyls, description of drawings no longer, the content something in common no longer repeats, difference is body of heater axis and horizontal line angle α, α=80 °, single-unit furnace discharging opening are located at a side; The body of heater material is ceramic material, and in stove, auger conveyer material is steel structure surface lining ceramic material; Microwave source is connected with 5 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

Embodiment 40: a kind of ferric phosphate lithium microwave heating single-furnace vertical continuous production equipment, originally identical with embodiment three octadecyls, description of drawings no longer, the content something in common no longer repeats, difference is body of heater axis and horizontal line angle α, α=100 °, single-unit furnace discharging opening are located at a side; In stove, auger conveyer material is stainless steel material; Microwave source is connected with 8 groups of microwave tubes, and every group by 3 microwave tube parallel connections.

The above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.

Claims

1. a ferric lithium phosphate precursor prepares the method for lithium cell anode material of lithium iron phosphate, it is characterized in that: comprise the following steps:

(3), the sintering of ferric lithium phosphate precursor material: in non-oxide atmosphere environment, ferric lithium phosphate precursor material after presintering is distributed in sintering unit body of heater by the auger conveyer, in non-oxide atmosphere environment, use the microwave applicator heating of some, 550～700 ℃ of sintering temperatures, then sintering time 60～120 minutes cools to room temperature, obtains the lithium cell anode material of lithium iron phosphate product;

2. the method for preparing LiFePO4 according to claim 1, it is characterized in that: in the presintering process of described ferric lithium phosphate precursor material, pre-sintering temperature is 220～260 ℃; In the sintering process of described ferric lithium phosphate precursor material, sintering temperature is 600～650 ℃.

3. a ferric phosphate lithium microwave heating step type continuous production equipment, is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, described pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is that the closed horizontal hollow is cylindric, its cross sectional shape is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at unit body of heater one end top, unit furnace discharge mouth is positioned at body of heater other end bottom, unit, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and unit body of heater axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three horizontal layouts of the cover parallel step of unit body of heater horizontal slice, sequentially be communicated with by the material transferring passage between the unit body of heater, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

4. microwave heating step continuous producing apparatus according to claim 3, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is evenly arranged on the unit furnace body outer wall, or be evenly arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of; Unit furnace discharge mouth is provided with unit furnace discharge valve, or at material transferring channel setting bleeder valve.

5. microwave heating step continuous producing apparatus according to claim 3 is characterized in that: sintering unit body of heater length is 3～5 times of pretreatment unit body of heater, presintering unit body of heater length.

6. microwave heating step continuous producing apparatus according to claim 3, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

7. according to claim 3～6 described microwave heating step of arbitrary claim continuous producing apparatus, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

8. microwave heating step continuous producing apparatus according to claim 7, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

9. a lithium iron phosphate micro-wave heating horizontal continuous production equipment, is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is that the closed horizontal hollow is cylindric, its cross sectional shape is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at unit body of heater one end top, unit furnace discharge mouth is positioned at body of heater other end bottom, unit, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and unit body of heater axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, three overlap unit stove Horizontal type arranges, between the unit stove, discharging opening directly is communicated with charging aperture successively, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, pretreatment unit furnace discharge mouth directly is communicated with the charging aperture of presintering unit stove, the discharging opening of presintering unit stove directly is communicated with the charging aperture of sintering unit stove, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

10. the horizontal continuous producing apparatus of microwave heating according to claim 9, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is evenly arranged on the unit furnace body outer wall, or be evenly arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of; Unit furnace discharge mouth is provided with unit furnace discharge valve, and the bleeder valve valve plate is the arc that mates with the unit body of heater.

11. the horizontal continuous producing apparatus of microwave heating according to claim 9 is characterized in that: sintering unit body of heater length is 3～5 times of pretreatment unit body of heater, presintering unit body of heater length.

12. the horizontal continuous producing apparatus of microwave heating according to claim 9, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

13. according to claim 9～12 horizontal continuous producing apparatus of the described microwave heating of arbitrary claim, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

14. the horizontal continuous producing apparatus of microwave heating according to claim 13, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

the horizontal continuous producing apparatus 15. a ferric phosphate lithium microwave heating tilts is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is closed inclination hollow cylindrical, its axis vertical cross-section is shaped as annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at unit body of heater one end top, unit furnace discharge mouth is positioned at body of heater other end bottom, unit, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and unit body of heater axis are installed in parallel in the unit body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of unit body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three parallel horizontal inclined layouts of cover unit stove, the inclination angle is α, between the unit stove, discharging opening directly is communicated with charging aperture successively, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, pretreatment unit furnace discharge mouth directly is communicated with the charging aperture of presintering unit stove, the discharging opening of presintering unit stove directly is communicated with the charging aperture of sintering unit stove, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

The horizontal continuous producing apparatus 16. microwave heating according to claim 15 is tilted, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is evenly arranged on the unit furnace body outer wall, or be evenly arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of; Unit furnace discharge mouth is provided with unit furnace discharge valve, and the bleeder valve valve plate is the arc that mates with the unit body of heater.

The horizontal continuous producing apparatus 17. microwave heating according to claim 15 is tilted, it is characterized in that: sintering unit body of heater length is 3～5 times of pretreatment unit body of heater, presintering unit body of heater length, each unit stove parallel oblique is arranged, unit body of heater axis downwards and the horizontal direction angle be inclined angle alpha, 0 °＜α≤30 °.

The horizontal continuous producing apparatus 18. microwave heating according to claim 15 is tilted, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

the horizontal continuous producing apparatus 19. according to claim 16～18 described microwave heatings of arbitrary claim are tilted, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

The horizontal continuous producing apparatus 20. microwave heating according to claim 19 is tilted, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

21. a ferric phosphate lithium microwave heating vertical continuous production equipment is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper surface, unit one side, unit furnace discharge mouth is positioned at body of heater lower surface, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three vertical verticals of cover unit stove, sequentially be communicated with by the material transferring passage between the unit stove, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

22. microwave heating vertical continuous production equipment according to claim 21, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on the unit furnace body outer wall, or be arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

23. microwave heating vertical continuous production equipment according to claim 21 is characterized in that: between described each unit stove, the material transferring channel cross-section is shaped as fan-shaped, rectangle or circular optional one.

24. microwave heating vertical continuous production equipment according to claim 21, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

25. according to claim 21～24 described microwave heating vertical continuous production equipments of arbitrary claim, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

26. microwave heating vertical continuous production equipment according to claim 25, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

27. a ferric phosphate lithium microwave heating deflection vertical continuous production equipment is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper surface, unit one side, unit furnace discharge mouth is positioned at body of heater lower surface, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three parallel deflection verticals of cover unit stove, angle of deviation is α, sequentially be communicated with by the material transferring passage between the unit stove, charging aperture is communicated with pretreatment unit stove charging aperture by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

28. microwave heating deflection vertical continuous production equipment according to claim 27, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on the unit furnace body outer wall, or be arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

29. microwave heating deflection vertical continuous production equipment according to claim 27 is characterized in that: between described each unit stove, the material transferring channel cross-section is shaped as fan-shaped, rectangle or circular optional one; Each unit stove deflection vertical, unit body of heater axis downwards and the horizontal direction angle be skew angle, 80 °≤α≤100 °.

30. microwave heating deflection vertical continuous production equipment according to claim 27, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

31. according to claim 27～30 described microwave heating deflection of arbitrary claim vertical continuous production equipments, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

32. microwave heating deflection vertical continuous production equipment according to claim 31, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

33. a lithium iron phosphate micro-wave heating staggered vertical continuous production equipment is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its horizontal cross sectional geometry is annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper end, unit one side, unit furnace discharge mouth is positioned at body of heater bottom, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three cover unit stove parallel vertical vertical that staggers, the material transferring passage that is β by the oblique angle that dips down between the unit stove sequentially is communicated with, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

The vertical continuous production equipment 34. microwave heating according to claim 33 is staggered, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on the unit furnace body outer wall, or be arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

The vertical continuous production equipment 35. microwave heating according to claim 33 is staggered is characterized in that: between the unit stove, material transferring channel centerline direction and horizontal direction angle are angle of inclination beta, 30 °≤β≤60 °.

The vertical continuous production equipment 36. microwave heating according to claim 33 is staggered, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

the vertical continuous production equipment 37. according to claim 33～36 described microwave heatings of arbitrary claim are staggered, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

38. the described microwave heating vertical continuous production equipment that staggers according to claim 37, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

39. a lithium iron phosphate micro-wave heating staggered deflection vertical continuous production equipment is characterized in that: comprise charging aperture, the charging air-exchanging chamber, the pretreatment unit stove, presintering unit stove, sintering unit stove, the discharging air-exchanging chamber, discharging mechanism cools, discharging opening, vacuum extractor, protective gas input unit and equipment control circuit, the pretreatment unit stove, presintering unit stove, sintering unit stove three overlaps the unit stove, contains equally unit stove charging aperture, the unit body of heater, the outer micro-wave screening insulation construction layer of unit body of heater, microwave source, a certain number of microwave tube, at least one is advanced exhaust tube, unit furnace discharge mouth, unit furnace discharge valve, the auger conveyer is installed at least each vacuum degree and is surveyed probe in each unit body of heater, temperature measurement probe and pressure measxurement probe, the unit body of heater is the vertical hollow cylindrical of closed, its axial vertical cross-section is shaped as annular, the unit body of heater is wrapped with the outer micro-wave screening insulation construction layer of unit body of heater, charging aperture is positioned at body of heater upper end, unit one side, unit furnace discharge mouth is positioned at body of heater bottom, unit one side, unit furnace discharge mouth is provided with unit furnace discharge valve, microwave source is arranged in unit body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with unit body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in the unit body of heater with approximate coincidence of unit body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at body of heater upper and lower end face, unit respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe are arranged on inboard wall of furnace body top, unit, are connected with the equipment control circuit corresponding circuits by data wire, the three parallel deflection verticals that stagger of cover unit stove, angle of deviation is α, the material transferring passage that is β by the oblique angle that dips down between the unit stove sequentially is communicated with, the transmission channel axis is approximate parallel with unit stove axis, charging aperture is communicated with pretreatment unit stove charging aperture near vertical by the charging air-exchanging chamber, the charging aperture of pretreatment unit furnace discharge mouth and presintering unit stove is by the material transferring channel connection, the charging aperture of the discharging opening of presintering unit stove and sintering unit stove is by the material transferring channel connection, the discharging opening of sintering unit stove is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, each unit stove, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, discharging mechanism cools, be connected with the equipment control circuit corresponding circuits by data wire.

40. the described microwave heating deflection vertical continuous production equipment that staggers according to claim 39, it is characterized in that: in described each unit stove, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on the unit furnace body outer wall, or be arranged in unit body of heater surrounding, wherein pretreatment unit stove, presintering unit stove microwave source power is 10～15kw, and sintering unit stove microwave source power is 30～100kw; Each unit body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described each unit body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

41. the described microwave heating deflection vertical continuous production equipment that staggers according to claim 39, it is characterized in that: each unit stove deflection vertical that staggers, unit body of heater axis downwards and the horizontal direction angle be skew angle, 80 °≤α≤100 °, between the unit stove, material transferring channel centerline direction and horizontal direction angle are angle of inclination beta, 30 °≤β≤60 °.

42. the described microwave heating deflection vertical continuous production equipment that staggers according to claim 39, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with pretreatment unit stove charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering unit furnace discharge mouth, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

the deflection vertical continuous production equipment 43. according to claim 39～42 described microwave heatings of arbitrary claim are staggered, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

44. the described microwave heating deflection vertical continuous production equipment that staggers according to claim 43, it is characterized in that: described equipment control circuit contains touch-screen, and touch-screen is communicated with pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, contain equally unit stove PLC, PLC external circuits, unit stove signal acquisition circuit, auger drive unit control circuit, the microwave source control circuit, the air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, unit furnace discharge valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described unit stove signal acquisition circuit contains input and is connected with unit stove vacuum degree probe, the vacuum meter that output is connected with unit stove PLC input, input is connected with unit furnace temperature measuring probe, the temperature controller that output is connected with unit stove PLC input is connected with unit furnace pressure power measuring probe with input, the pressure controller that output is connected with unit stove PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and unit stove PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the output of the coil linkage unit stove PLC of A.C. contactor; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, the coil linkage unit stove PLC output of A.C. contactor; Described touch-screen and pretreatment unit stove PLC control circuit, presintering unit stove PLC control circuit, sintering unit stove PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

45. the horizontal continuous producing apparatus of ferric phosphate lithium microwave heating single-furnace comprises charging aperture, the outer micro-wave screening insulation construction layer of body of heater, body of heater, microwave source, discharging mechanism cools, discharging opening, vacuum extractor, the protective gas input unit is characterized in that: the horizontal continuous producing apparatus of the single body of heater of described microwave heating also comprises the charging air-exchanging chamber, discharging air-exchanging chamber and production equipment control circuit, body of heater is provided with the body of heater charging aperture, a certain number of microwave tube, at least one is advanced exhaust tube, the body of heater discharging opening, bleeder valve, the auger conveyer, at least each vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe, body of heater is the closed hollow cylindrical, its axis vertical cross-section is shaped as annular, body of heater is wrapped with the outer micro-wave screening insulation construction layer of body of heater, the body of heater charging aperture is positioned at body of heater one end top, the body of heater discharging opening is positioned at body of heater other end bottom, the body of heater discharging opening is provided with bleeder valve, microwave source is arranged in the body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with the body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis and body of heater axis are installed in parallel in body of heater, its two ends are connected with the drive unit that is located at the outer both ends of the surface of body of heater respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe is arranged on the inboard wall of furnace body top, be connected with the equipment control circuit corresponding circuits by data wire, charging aperture is communicated with the body of heater charging aperture by the charging air-exchanging chamber, and the body of heater discharging opening is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, body of heater, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, the discharging mechanism that cools is connected with the equipment control circuit corresponding circuits by data wire.

46. the horizontal continuous producing apparatus of the single body of heater of described microwave heating according to claim 45, it is characterized in that: in described body of heater, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on furnace body wall, or being arranged in the body of heater surrounding, microwave source power is 30～100kw; Body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

47. the horizontal continuous producing apparatus of the single body of heater of described microwave heating, is characterized in that: body of heater axis and horizontal direction angle α, 0 °≤α≤10 ° according to claim 45.

48. the horizontal continuous producing apparatus of the single body of heater of described microwave heating according to claim 45, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with the body of heater charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with the body of heater discharging opening, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

49. according to claim 45～48 horizontal continuous producing apparatus of the single body of heater of the described microwave heating of arbitrary claim, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

50. the horizontal continuous producing apparatus of the single body of heater of described microwave heating according to claim 49, it is characterized in that: described production equipment control circuit contains touch-screen, and touch-screen is communicated with agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described agglomerating plant PLC control circuit contains PLC, PLC external circuits, signal acquisition circuit, auger drive unit control circuit, microwave source control circuit, air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, the body of heater bleeder valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described signal acquisition circuit contains input and is connected with the vacuum degree probe, the vacuum meter that output is connected with the PLC input, input is connected with temperature measurement probe, the temperature controller that output is connected with the PLC input is connected with temperature measurement probe with input, the pressure controller that output is connected with the PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the coil of A.C. contactor connects the output of PLC; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, and the coil of A.C. contactor connects the PLC output; Described touch-screen and agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.

51. a ferric phosphate lithium microwave heating single-furnace vertical continuous production equipment comprises charging aperture, the outer micro-wave screening insulation construction layer of body of heater, body of heater, microwave source, discharging mechanism cools, discharging opening, vacuum extractor, the protective gas input unit is characterized in that: the vertical continuous continuous producing apparatus of the single body of heater of described microwave heating also comprises the charging air-exchanging chamber, discharging air-exchanging chamber and equipment control circuit, body of heater are provided with the body of heater charging aperture, a certain number of microwave tube, at least one is advanced exhaust tube, the body of heater discharging opening, bleeder valve, the auger conveyer, at least each vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe, body of heater is the vertical hollow cylindrical of closed, its axis vertical cross-section is shaped as annular, the body of heater charging aperture is positioned at body of heater upper end one side, the body of heater discharging opening is positioned at body of heater bottom one side, the body of heater discharging opening is provided with bleeder valve, microwave source is arranged in the body of heater outer periphery and is connected with microwave tube, microwave tube is arranged on furnace body outer wall, advancing exhaust tube is communicated with the body of heater inner chamber, be communicated with vacuum extractor and protective gas input unit by the band valve pipe, auger conveyer axis is arranged in body of heater with approximate coincidence of body of heater axis direction, its two ends, up and down are connected with the drive unit that is located at the body of heater upper and lower end face respectively, vacuum degree is surveyed probe, temperature measurement probe and pressure measxurement probe is arranged on inboard wall of furnace body top, be connected with the equipment control circuit corresponding circuits by data wire, charging aperture is communicated with the body of heater charging aperture by the charging air-exchanging chamber, and the body of heater discharging opening is communicated with cool discharging mechanism and discharging opening by the discharging air-exchanging chamber, body of heater, the charging air-exchanging chamber, vacuum extractor, the protective gas input unit, the discharging air-exchanging chamber, the discharging mechanism that cools is connected with the equipment control circuit corresponding circuits by data wire.

52. the single body of heater vertical continuous production equipment of 1 described microwave heating according to claim 5, it is characterized in that: in described body of heater, microwave source is connected with certain group of number microwave tube, every group in parallel by some microwave tubes, microwave tube is arranged on furnace body wall, or being arranged in the body of heater surrounding, microwave source power is 30～100kw; Body of heater is provided with a blast pipe at least, and advance the to bleed mouth of pipe and exhaust pipe mouth are equipped with microporous filter; Described body of heater material is the optional one of quartz glass or pottery, and the auger conveyer is that quartz glass, steel structure surface lining ceramic material or stainless steel are optional wherein a kind of.

53. the 1 single body of heater vertical continuous production equipment of described microwave heating, is characterized in that: body of heater axis and horizontal direction angle α, 80 °≤α≤100 ° according to claim 5.

54. the single body of heater vertical continuous production equipment of 1 described microwave heating according to claim 5, it is characterized in that: described charging air-exchanging chamber, comprise that hopper, inlet valve, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with charging aperture, lower port is communicated with preliminary treatment body of heater charging aperture, hopper upper and lower end section is provided with respectively inlet valve and bleeder valve, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall; Described discharging air-exchanging chamber, comprise that hopper, bleeder valve, vacuum degree survey probe and at least one and advance exhaust tube, the hopper upper port is communicated with sintering body of heater discharging opening, lower port is communicated with the discharging mechanism that cools, bleeder valve is located at the hopper bottom, advance the exhaust tube opening and be arranged on the hopper upper inside wall, be communicated with vacuum extractor by the band valve pipe, vacuum degree is surveyed probe and is arranged on the hopper upper inside wall.

55. 1～54 single body of heater vertical continuous production equipment of the described microwave heating of arbitrary claim according to claim 5, it is characterized in that: the described discharging mechanism that cools, comprise Material pipeline, the interlayer cover, water inlet, delivery port, the auger conveyer, bleeder valve, Material pipeline is stainless steel, the interlayer cover is wrapped on the Material pipeline pipeline outer wall, the one end is provided with water inlet, the other end is provided with delivery port, the auger conveyer is arranged on material conveying pipe inside, its two ends auger conveyer drive unit outer with being located at the outer both ends of the surface of pipeline respectively are connected, bleeder valve is located at discharging opening top.

56. single body of heater vertical continuous production equipments of 5 described microwave heatings according to claim 5, it is characterized in that: described production equipment control circuit contains touch-screen, and touch-screen is communicated with agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool respectively by data/address bus; Described agglomerating plant PLC control circuit contains PLC, PLC external circuits, signal acquisition circuit, auger drive unit control circuit, microwave source control circuit, air extractor control circuit; Described PLC external circuits, the hand switch that contains the some that is connected with input, the switching signal circuit of signal acquisition circuit, and the servo-driver that is connected with output, the body of heater bleeder valve is controlled ac contactor coil, and protective gas is controlled ac contactor coil, and ac contactor coil is controlled in venting, vacuum pump is controlled ac contactor coil, and microwave source is controlled ac contactor coil and indicator light; Described signal acquisition circuit contains input and is connected with the vacuum degree probe, the vacuum meter that output is connected with the PLC input, input is connected with temperature measurement probe, the temperature controller that output is connected with the PLC input is connected with temperature measurement probe with input, the pressure controller that output is connected with the PLC input; Described auger conveyer drive unit drive circuit contains the servo-driver that an end is connected with two-phase power supply, and servo-driver connects the output of servomotor and PLC; Described microwave source control circuit, the microwave transformer that contains the some that is connected with three phase mains, hold with the microwave transformer microwave tube circuit that is connected, be in series with a contact of temperature control protection switch and multiconductor A.C. contactor on microwave transformer primary end input line, the coil of A.C. contactor connects the output of PLC; Described air extractor control circuit contains the A.C. contactor that an end is connected with three phase mains, and the other end of A.C. contactor is connected with the air extractor motor by circuit breaker, and the coil of A.C. contactor connects the PLC output; Described touch-screen and agglomerating plant PLC control circuit, the charging ventilation/discharging discharging PLC control circuit of taking a breath/cool is communicated with by the RS422/485 bus.