CN201242342Y

CN201242342Y - Shaft kiln

Info

Publication number: CN201242342Y
Application number: CNU2008201308255U
Authority: CN
Inventors: 陈久斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-16
Filing date: 2008-07-15
Publication date: 2009-05-20
Anticipated expiration: 2018-07-15
Also published as: CN101349500A

Abstract

The utility model relates to a vertical kiln, which adopts a novel combustion mode and a heating mode and utilizes heat convection and swirl combustion to enable the vertical kiln to have the functions of saving more energy and protecting environment. Forced airflow is utilized to form eddying turbulence in a kiln chamber and enable materials to be burned uniformly. Motion is mutual, the heating mode which enables materials to roll is replaced by motion which utilizes hot airflow to encircle the materials, a natural sedimentation is utilized to enable the materials to naturally move to a preheating belt, a heating belt and a cooling belt, wherein a fuel supplying device, a combustion chamber, the kiln chamber, a fan, a wind pipe, fire-proof materials and heat insulating materials are arranged in the vertical kiln. The kiln is characterized is in that an air inlet is arranged on the side wall of the combustion chamber, the air inlet is connected with an air inlet pipe, the fan is arranged on the air inlet pipe, the combustion chamber is connected with the fuel supplying device, a heating chamber and a cooling chamber are arranged in the kiln chamber, the lower portion of the heating chamber is communicated with the cooling chamber, a charging port is arranged on the upper portion of the heating chamber, an air outlet is arranged on the upper portion of the heating chamber, a discharging port is arranged on the lower portion of the cooling chamber, the air inlet of the kiln chamber is arranged between the heating chamber and the cooling chamber, the air outlet is arranged on the combustion chamber, and the air outlet of the combustion chamber is communicated with the air inlet of the kiln chamber.

Description

Shaft furnace

Technical field

The utility model relates to the furnace equipment field, specifically is a kind of shaft furnace.

Background technology

Existing shaft furnace, be used to produce cement, lime, roasting, the multiple ore of calcining, lump material etc. more, ubiquity energy consumption height, discharge that not enough environmental protection, heat energy utilization rate are low, polyhybird coal burning in the kiln, fuel combustion are insufficient, dust and noxious gas emission is too many, non-uniform temperature in the stove, can't fire problems such as granular material.

The utility model content

The purpose of this utility model is to provide a kind of shaft furnace of brand new, can make fuel combustion more abundant, capacity usage ratio is higher, discharges environmental protection more, noxious gas emission significantly reduces, can make product better, more energy-saving and cost-reducing, reduce production costs, improve furnace efficiency greatly, can produce cement, lime, flint clay, aluminium oxide, ore roasting etc. with it, can in the firing chamber, not add coal in the production, can make product clean more.Also can in shaft furnace, spray into chemical reaction catalyst, reducing agent, additive etc., make shaft furnace become a high-temperature chemical reaction kiln, available its roasting, calcine multiple ore, lump material, granular material etc., also granular material can be made lump material after, fire with this shaft furnace again.The utility model shaft furnace can use pluralities of fuel, can use any one solid, liquid, gaseous fuel, also can use multiple fuel combination.

The utility model for achieving the above object, be achieved through the following technical solutions: shaft furnace comprises: fuel supply system, the combustion chamber, the firing chamber, blower fan, tracheae, refractory material, insulation material, sidewall of combustion chamber is established air inlet, air inlet connects air inlet pipe, blower fan is installed on the air inlet pipe, the combustion chamber connects fuel supply system, the firing chamber establishes heating clamber and cooling chamber, the heating clamber bottom is communicated with cooling chamber, and charging aperture is established on heating clamber top, and heating clamber top sets out gas port, discharging opening is established in the cooling chamber bottom, establish firing chamber's air inlet between heating clamber and the cooling chamber, the combustion chamber sets out gas port, and the gas outlet, combustion chamber is communicated with firing chamber's air inlet.Firing chamber's sidewall is established many pressurization air inlet pipe, and the pressurization air inlet pipe connects booster fan.The pressurization air inlet pipe is provided with along firing chamber's cross section tangential direction.Discharging opening is communicated with the material chamber, and the material chamber sets out gas port, and the gas outlet connects the booster fan air inlet.Cooling chamber is established air inlet, and air inlet connects the cooling blower gas outlet.Combustion chamber inner chamber cross section is rounded, and air inlet pipe connects air inlet of combustion chamber, the fiery fuel supply system of setting up an office on the air inlet pipe, the fiery device of setting up an office on the air inlet pipe along combustion chamber cross section tangential direction.The heating clamber gas outlet connects air-introduced machine.Charging aperture is established the movable sealing device, and air-introduced machine connects tracheae, and tracheae connects the combustion chamber, and the portion gas outlet is set in the bottom, combustion chamber.The bottom, combustion chamber is communicated with deslagging chamber, and deslagging chamber offers slag flow port.Establish refractory material hole frame in the firing chamber.Cross section is rounded in the firing chamber, the firing chamber establishes on top the sidewall air inlet, the top, firing chamber is provided with dedusting core pipe, the sealing of dedusting core pipe bottom, dedusting core pipe top is provided with the gas outlet, dedusting core pipe top connects the dedusting fan air inlet, the dedusting fan gas outlet connects the dedusting air inlet pipe, the dedusting air inlet pipe connects firing chamber's upper portion side wall air inlet along top, firing chamber cross section tangential direction, and dedusting core pipe sidewall is offered gas channel 55, and gas channel becomes the angle of inclination with dedusting core pipe radius, the incline direction of gas channel is opposite with the direction of rotation of the outer air-flow of dedusting core pipe, establish feed pipe in the dedusting core pipe, dedusting core pipe bottom is passed in the feed pipe outlet, and the feed pipe import is located at outside the firing chamber.Combustion chamber inner chamber cross section is square, and four air inlets are established in the combustion chamber, and air inlet pipe connects air inlet of combustion chamber along the parallel lines direction on cross section limit, combustion chamber.Dedusting core pipe is installed in the gas outlet, combustion chamber.Part pressurization air inlet pipe is provided with along firing chamber's cross section radial direction.The firing chamber establishes the bottom gas outlet, bottom, firing chamber, and the booster fan air inlet connects gas outlet, bottom, firing chamber.The pressurization air inlet pipe is communicated with the pressurization total inlet pipe, and the pressurization total inlet pipe is located on firing chamber's wall, and the pressurization total inlet pipe is communicated with pressurize manifold, and pressurize manifold connects booster fan.Pressurize manifold one end is established soot cleaning valve.

Advantage of the present utility model is: fuel is swirl combustion in the combustion chamber, fuel mixture forms an eddy current cyclone by chamber structure, the eddy current cyclone has prolonged the holdup time of fuel in the combustion chamber, prolonged the burning time of fuel, make fuel and air better mixing even, make full combustion of fuel.Swirl combustion not only can be created high temperature, also can improve the caloric value of unit volume combustion chamber greatly, can improve combustion chamber power greatly, can reduce the construction cost of combustion chamber.Make direct use bulky grain solid fuel become possibility by the contraction of exhaust outlet of combustion chamber and the high speed rotation of eddy current, can make the bulky grain solid fuel in the combustion chamber, form adherent burning, can reduce the solid fuel crushing cost greatly and use.The gas outlet, combustion chamber dwindles and eddy current rotation makes dust etc. be difficult for entering in the firing chamber, can increase the cleanliness factor of product.Dedusting core pipe is installed in the gas outlet, combustion chamber, is utilized the eddy current rotation realization centrifugal dust-removing effect the combustion chamber in, make dust etc. more be difficult for entering in the firing chamber, can further increase the cleanliness factor of product.Utilize deslagging chamber to make the combustion chamber realize slag tap, can further improve temperature, improve combustion chamber power, improve furnace efficiency.The heat that utilizes blower fan that the combustion chamber is produced passes to material in the firing chamber fast, utilize booster fan to make simultaneously and form turbulent flow in the firing chamber, improved the move distance of thermal current, improved the holdup time of thermal current in the firing chamber, realize heat transmission better, make in the firing chamber temperature even, material is heated evenly.Motion is mutual, the thermal current motion makes material also move with respect to thermal current, the motion that utilizes thermal current to center on material has replaced mode of heating that material is rolled, it is the same substantially with the effect of rotary kiln to add thermal effect, also avoided lump material in rotary kiln because the broken problem of rolling and causing, make the material required energy consumption of rolling to be far longer than and to make the required energy consumption of air motion, can significantly reduce energy consumption, make kiln more energy-conservation.Also can utilize the pressurization air inlet pipe in the firing chamber, to spray into chemical reaction catalyst or reducing agent, make the firing chamber become a chemical-reacting furnace.Available its roasting, calcine multiple lump material, also granular material can be pressed into block material after, in the firing chamber, fire again.Utilize natural subsidence make in the firing chamber material movement to the thermal treatment zone, the cooling zone, the characteristics of utilizing hot-air to move upward make the heat that material is with that burns till be taken to the thermal treatment zone by air, realize the heat radiation of finished product and the back production utilization of waste heat, can be energy-conservation greatly.Utilize material to make material form after-ripening, guarantee that better material fully fires maturation in the delay of cooling chamber.Utilize air-breathing the making of blower fan to form negative pressure in the firing chamber, the dust, the waste gas that produce in the firing chamber can be lost in the atmosphere, the dust when yet making charging, discharging can not be lost in the surrounding space, environmental protection more.The waste gas that produces in the firing chamber is delivered to the combustion chamber by blower fan, and the uncombusted thing in the waste gas is fully burnt, and the combustible component in the waste gas is fully burnt, further energy savings.Combustion chamber central axis and ground are vertical angle, and the tail gas of burning is discharged from the below, combustion chamber, and the characteristics of utilizing hot-air to make progress away make to form thermal convection current in the combustion chamber, can reduce the temperature of discharging tail gas greatly, can be energy-conservation greatly.Utilize the eddy current of combustion chamber to make the waste gas natural subsidence to the bottom, combustion chamber, last same exhaust combustion gases, dust etc. are discharged from the combustion chamber together, can focus on, and also can utilize waste gas relieving haperacidity, extract chemical composition etc.Waste gas enters air adopt the hot cell after, utilize air inlet opposite with discharge directions, can utilize the coldest fresh air to gather the heat of exhaust least significant end, enter the combustion chamber after passing through the fresh air process blower fan pressurization after air is adopted the hot cell heating, heat is fully used, the height that air is adopted the hot cell transmits heat better upward, by downward exhaust heat is fully used, and has significantly reduced thermal losses.The utility model shaft furnace can be widely used in the productions such as cement, lime, aluminium oxide, copper smelting by pyrometallurgy, ore roasting.

Description of drawings

Accompanying drawing 1 is the main TV structure schematic diagram of one of the utility model embodiment; Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to the sectional structure schematic diagram; Accompanying drawing 3 is that the B-B of accompanying drawing 1 is to the sectional structure schematic diagram; Accompanying drawing 4 is that the C-C of accompanying drawing 1 is to the sectional structure schematic diagram; Accompanying drawing 5 is main TV structure schematic diagrames of two of the utility model embodiment; Accompanying drawing 6 is main TV structure schematic diagrames of three of the utility model embodiment; Fig. 7 is four the main TV structure schematic diagram of the utility model embodiment; Fig. 8 is five the main TV structure schematic diagram of the utility model embodiment; Accompanying drawing 9 is that the D-D of accompanying drawing 8 is to the sectional structure schematic diagram; Figure 10 is six the main TV structure schematic diagram of the utility model embodiment;

The specific embodiment

Agent structure of the present utility model is: shaft furnace comprises: fuel supply system, combustion chamber, firing chamber, blower fan, tracheae, refractory material, insulation material, combustion chamber 2 sidewalls are established air inlet 1, air inlet 1 connects air inlet pipe 7, blower fan 8 is installed on the air inlet pipe 7, the combustion chamber connects fuel supply system, 8 pairs of air-flow pressurizations of blower fan can make air-flow rush in the combustion chamber, make air-flow form an eddy current that rotating shaft is perpendicular to the ground in the combustion chamber.Fuel supply system can directly connect the combustion chamber by cartridge, and when using liquid or gaseous fuel, liquid or gaseous direct fuel after fuel supply system can directly will pressurize by cartridge are delivered into the combustion chamber.When using solid fuel, fuel supply system can utilize air communication to cross cartridge pulverulent solids fuel is delivered into the combustion chamber, can utilize blower fan powdery solid fuel.Also can utilize air inlet pipe 7 to replace cartridges, shortcoming is that chamber pressure causes tempering when big easily, causes the air inlet pipe scaling loss.Combustion chamber 2 usefulness refractory materials 13 are made, and available refractory brick is built into, and inwall can be established one deck heat resistant and wear resistant shell 14.

The firing chamber establishes heating clamber 36 and cooling chamber 28, and heating clamber 36 bottoms are communicated with cooling chamber 28, and the height ratio of heating clamber and cooling chamber can be selected 1: 1.Firing chamber's outer wrap iron plate 11, inside is built into refractory brick, the refractory brick slit will seal with refractory cement or refractory powder, add the refractory cement compacting for increasing outside available high temperature resistant perlite of heat insulating ability refractory brick or ashes etc., the low temperature shaft furnace also can directly be tamped with clay, firing chamber's height can be according to the category of the material of firing, granular size, the internal diameter size of firing chamber waits fixed, can increase the firing chamber when when material particles is big and firing chamber internal diameter is big, get final product about general 10-15 rice, too high increasing firing chamber cost also strengthens the material loading cost, also strengthens fan energy consumption, too short to be unfavorable for that material fully burns ripe, and the ratio of firing chamber's height and firing chamber's internal diameter can be selected 1:0.191.Firing chamber's internal diameter can be arranged to equally thick up and down structure, can simplify the technology of putting up a kiln.The firing chamber can utilize the hillside fields to comply with the slope and build, and it is firm to help the firing chamber, reduces the cost of putting up a kiln, also help material loading, the chamber that puts up a kiln, level land need reinforce, and the firing chamber can reinforce with thick iron plate, the periphery establishes concrete in addition or steel structure support is firm, and material loading need be used lowering or hoisting gear, and operating platform need be established in the top, firing chamber.The firing chamber can use the several years generally speaking continuously, can be with the unified replacing of internal refractory brick during firing chamber's overhaul.

For further improving output, reducing the kiln cost, can adopt the scheme of two or more firing chambers in parallel, a combustion chamber, can form bitubular shaft furnace or many shaft furnaces.Strengthen the combustion chamber, fuel is better burnt.

Charging aperture 40 is established on heating clamber top, heating clamber top sets out gas port 42, can establish one or more gas outlets on heating clamber top, also can establish a plurality of gas outlets in the heating clamber upper portion side wall, if a plurality of gas outlets can make the equilibrium of heating clamber internal pressure, help air motion equilibrium in the heating clamber, it is even to help heating indoor temperature, also can a tracheae 39 be set in the heating clamber upper lateral, an air inlet 38 is offered in the tracheae bottom, and air inlet 38 centers are on the heating clamber central axis, and air inlet 38 can connect a vertical riser 81, vertical riser 81 has certain altitude, and vertical riser 81 can avoid material to enter tracheae 39.Charging aperture and gas outlet can be set to one, and heating clamber can utilize charging aperture to give vent to anger simultaneously, and shortcoming is that tail gas that shaft furnace produces does not add any processing and just directly enters atmosphere, is unfavorable for environmental protection.Gas outlet and charging aperture can be arranged to split, can air-introduced machine be set at place, tracheae 39 gas outlets, after handling, the tail gas that air-introduced machine is discharged enters atmosphere, can make and form negative pressure in the shaft furnace, making when reinforced not can flying dust, make shaft furnace environmental protection more, the thermal current that more helps the combustion chamber generation simultaneously enters the firing chamber.Can utilize device such as conveyer belt continual reinforced.

Discharging opening 27 is established in the cooling chamber bottom, and cooling chamber can be increased in suitable increasing, and for reducing cost, the cooling chamber bottom can be built with clay brick.Discharging opening 27 can be located at cooling chamber bottom centre, can be arranged to funnel-form, material basket 26 can be established in the discharging opening below, and arch can be arranged in material top, chamber, and the inclined-plane is arranged in bottom, material chamber, can make material along the inclined-plane landing to expecting the chamber bottommost, can offer sidewall discharging opening 25 on the side of material chamber bottommost, arch is arranged at the discharging opening top, fuses with material top, chamber, the discharging opening height can be the same with material chamber height, and the discharging opening width also can be the same with material chamber width.Material can roll out from sidewall discharging opening 25, sidewall discharging opening 25 belows connect conveyer, can improve mechanization degree, can utilize conveyers such as conveyer belt from the sidewall discharging opening mass transport to be gone out incessantly, material can continually roll out from the sidewall discharging opening, can determine load and discharging speed according to the mature condition that material in the firing chamber is fired.Also can utilize Tool Rooms such as forklift to take material from the sidewall discharging opening every certain hour.At some in particular cases, discharging opening 27 also can be provided with moving grate leaks down material, and moving grate can be arranged to the mechanical device of control automatically, also can be arranged to manually operated.

Establish firing chamber's air inlet 33 between heating clamber and the cooling chamber, firing chamber's air inlet can be arranged on firing chamber's sidewall, one or more firing chambers air inlet can be set, a plurality of firing chambers air inlet is set, and to help in the firing chamber temperature even, but increased the difficulty of cleaning quirk, also strengthened firing chamber's cost, firing chamber's air inlet of operated by rotary motion gets final product, for reducing dust stratification, avoid material to stop up air inlet, firing chamber's air inlet 33 can be established the slope near inwall place, firing chamber.The pressure that utilizes the combustion chamber to produce can make air inlet 33 above and belows in firing chamber's form high temperate zone, makes the heating clamber top form the preheating zone, can heat material better.For avoiding thermal current along firing chamber's inwall rapid movement upward, the heating clamber internal diameter can make equally thick up and down structure, can make center in the heating clamber and peripheral pressure relative even, makes the heating clamber center relative even with the hot gas flow of periphery.Simultaneously air motion resistance in the firing chamber can be reduced, fan energy consumption can be further reduced.

The combustion chamber sets out gas port 48, can set out gas port 48 in 2 tops in the combustion chamber, gas outlet, combustion chamber 48 is communicated with firing chamber's air inlet 33, can build quirk 46 between combustion chamber and the firing chamber, available refractory brick is built into, and quirk inner chamber cross section can be selected circle, help air motion, the quirk inwall also can be established high temperature resistant, the wear-resisting shell of one deck, and quirk can be established shoot door 49, and shoot door seals at ordinary times.Insulation material 12 can be unified to wrap up in combustion chamber, quirk outside, and insulation material can add the refractory cement compacting with high temperature resistant perlite or ashes etc., the further sealing of the outside iron clad plate 11 of insulation material.Combustion chamber, quirk, outside, firing chamber can be unified to wrap up one deck fire-retardent fiber felt-rug etc., and the outside can make shaft furnace more attractive in appearance again with sealings such as color steels.Can directly get final product around the firing chamber without iron plate when utilizing the hillside fields to put up a kiln with rammed earth.Also combustion chamber, quirk, firing chamber all can be built in the slope, will directly use rammed earth around combustion chamber, quirk, the firing chamber, i.e. sealing insulation again can reduce cost greatly.

Firing chamber's sidewall is established many pressurization air inlet pipe 51, and the pressurization air inlet pipe connects booster fan 44, and booster fan 44 can be controlled air quantity with variable-frequency motor, can in the pressurization air inlet pipe temperature sensor be set, according to the air quantity of adjustment booster fan.Pressurization air inlet pipe 51 connects pressurization total inlet pipe 34, the pressurization total inlet pipe connects house steward 37, house steward 37 connects booster fan 44, and pressurization air inlet pipe 51 can be welded on the pressurization total inlet pipe 34, promptly can be welded on the pressurization total inlet pipe and also can be welded on outward in the pressurization total inlet pipe.Want the ratio of deployed pressurization total inlet pipe inner chamber area and all pressurization air inlet pipe inner chamber gross areas during making, guarantee to form in the pressurization air inlet pipe air-flow of certain pressure, stream pressure is unsuitable excessive, avoid air-flow directly to impact firing chamber's inwall, avoids air-flow wearing and tearing firing chamber inwall.

Pressurization air inlet pipe 51 is communicated with pressurization total inlet pipe 34, and pressurization total inlet pipe 34 is located on firing chamber's wall, and the pressurization total inlet pipe is communicated with pressurize manifold 37, and pressurize manifold 37 connects booster fan 44, and pressurization air inlet pipe 51 is provided with along firing chamber's cross section tangential direction.

The pressurization air inlet pipe can be passed the heating clamber sidewall and is communicated with the pressurization total inlet pipe, the pressurization total inlet pipe is located on firing chamber's outer wall, and the pressurization total inlet pipe will wrap up insulation material, and this scheme can not considered firing chamber's temperature, can be common to all shaft furnaces, can make the pressurization air inlet pipe durable in use.Pressurize manifold 37 can lateral circular on firing chamber's outer wall, pressurization

total inlet pipe

34 and 37 vertical connections of pressurize manifold, pressurization total inlet pipe 34 is evenly distributed on firing chamber's outer wall, can determine the distributed quantity of pressurization total inlet pipe and spacing distance each other according to firing chamber's internal diameter size.The pressurization air inlet pipe can be provided with along heating clamber cross section tangential direction, make gas outlet 35 directions towards heating clamber cross section tangential direction, can well the thermal current that rises along the heating clamber inwall be upset, can make and form eddy airstream in the heating clamber, eddy airstream can make thermal current converge to the heating clamber center, even the heating clamber internal diameter is bigger, eddy airstream also can make the material at heating clamber center be heated, eddy airstream forms disorderly air-flow after running into material, can improve the move distance of air-flow in heating clamber, improve the holdup time of air-flow in heating clamber, realize heat transmission better, can make the material at each position in the heating clamber can thermally equivalent.Motion is mutual, the thermal current motion makes material also move with respect to thermal current, the motion that utilizes thermal current to center on material has replaced mode of heating that material is rolled, it is the same substantially with the effect of rotary kiln to add thermal effect, also avoided lump material in rotary kiln because the broken problem of rolling and causing, make the material required energy consumption of rolling to be far longer than and to make the required energy consumption of air motion, can significantly reduce energy consumption, make kiln more energy-conservation than rotary kiln.The heating clamber topmost is reserved one section and is not established the pressurization air inlet pipe, and the high-temperature gas in the air inlet pipe of can avoiding pressurizeing does not have enough time to pass to material promptly discharges outside the firing chamber, can the better utilization waste heat.Also can utilize pressurization air inlet pipe 51 in the firing chamber, to spray into chemical reaction catalyst or reducing agent, make shaft furnace become a high-temperature chemical reaction stove, available its roasting, calcine multiple lump material, granular material.A part of pressurization air inlet pipe 51 also can be provided with along firing chamber's cross section radial direction, can make the disorderly air-flow of the formation firing chamber in, makes in the firing chamber each position temperature even.

Pressurization total inlet pipe 34 also can be located on the heating clamber inwall, and the pressurization air inlet pipe can be welded in the pressurization total inlet pipe, can not influence the material sedimentation.The pressurization total inlet pipe is located at that shortcoming is easy scaling loss on the heating clamber inwall, advantage is to utilize the pressurization total inlet pipe further to gather heat, inner air tube is heated, make more uniform temperature in the firing chamber, when temperature is too high in the firing chamber pressurization air inlet pipe material is had relatively high expectations, can select different materials according to different firing chamber's temperature conditions, firing chamber's temperature can adopt this programme when low, and the pressurization air inlet pipe can keep in repair when the kiln scheduled overhaul or change.

Pressurize manifold 37 1 ends are established soot cleaning valve 63.Contain a large amount of dusts in the hot gas that booster fan sucks, when dust rises along the pressurization total inlet pipe, part dust can be deposited in the pressurize manifold gradually, time has been grown and can stop up pressurize manifold, can establish soot cleaning valve 63 away from an end of booster fan in pressurize manifold, soot cleaning valve 63 is closed when flat, opens during deashing, can utilize the pressure of booster fan that dust is sprayed in soot cleaning valve.

Discharging opening 27 is communicated with material chamber 26, and material chamber 26 sets out gas port 92, and gas outlet 92 connects booster fan 44 air inlets.Can set out gas port 92 at material top, chamber, gas outlet 92 connects booster fan 44 air inlets by pipeline 93, can make the material further heat radiation in material chamber 26 that bakes, and material chamber 26 also can be used as cooling chamber and uses, hot-air is sent in the firing chamber by booster fan 44, but the better utilization waste heat.

Cooling chamber 28 is established air inlet 95, and air inlet 95 connects cooling blower 94 gas outlets.Air inlet can connect cooling blower by tracheae 96, can utilize cooling blower in cooling chamber, to blast normal temperature air, regulate air quantity, better cooling products, normal temperature air moves to top, firing chamber after being subjected to burning in the cooling chamber heating of ripe material, material in the heat transferred firing chamber can make full use of waste heat the most at last.Pressurized blower fan siphoned away after air after the part heating entered the material chamber from discharging opening, reentered in the firing chamber, can make full use of waste heat.

Also can establish gas outlet, bottom, firing chamber in the bottom, firing chamber, the booster fan air inlet connects gas outlet, bottom, firing chamber, utilize booster fan to be delivered to the pressurization air inlet pipe after the hot gas sucking-off pressurization in the cooling chamber, can be in cold air chamber tracheae of horizontally set, tracheae one end connects the booster fan air inlet, the sealing of the tracheae other end, air inlet is offered in below, tracheae middle part, can make air-flow after air inlet enters tracheae, be inhaled into booster fan from the center, firing chamber, can connect a vertical air inlet pipe under the air inlet, the vertical air inlet pipe has certain altitude, can avoid material to enter tracheae, the vertical air inlet pipe can be gathered a part of heat simultaneously, and shortcoming is that booster fan need adopt high-temperature blower, strengthen the blower fan cost, influence the material uniform settlement.Can be suitable in discharging opening, be blown into normal temperature air, regulate air quantity, better cooling products, but better utilization waste heat.

When using this shaft furnace, can fill the firing chamber with raw material earlier, release bottom, firing chamber raw material from firing chamber's discharging opening gradually after the igniting, again these raw material be got final product from the salty firing chamber of newly packing into of firing chamber's its top feed.During cement baking, cement slurry can be made the ball bulk, can not mix coal dust in the cement slurry, can make the cement quality better, comparable existing cement rotary kiln equipment reduces cost greatly, cuts down the consumption of energy greatly, environmental protection more also can be used this shaft furnace technical scheme existing cement shaft furnace is transformed.When producing lime, the building stones granular size is not had specific (special) requirements, can determine granular size as required, directly fire in the kiln of building stones directly can being packed into and get final product.Can fire little lump lime, the output of firing chamber's lime of unit volume can reach more than 3-5 times of existing limekiln, and production fritter lime output is higher, produces lime output with 2-4 centimetre building stones and can improve more than ten times even tens times.Fritter lime activity is higher; it is better that lime is fired maturity; energy consumption can reduce more than 40% than traditional limekiln; there are not black smoke, dust, carbon monoxide, sulfur dioxide (SO2) emissions, very environmental protection; chamber temperature can be controlled within 1200 degree; the lime burn-off phenomenon can be do not occurred, the little lump lime of highly active superfine can be burnt out.During the roasting copper sulfide concentrate, can from tail gas, make sulfuric acid.Aluminium hydroxide can be pressed into block material when firing aluminium oxide, calcining gets final product in the kiln of packing into, and comparable existing aluminium oxide is fired equipment and reduced cost greatly, cuts down the consumption of energy greatly, more environmental protection.

The structure of one of wood utility model embodiment is: combustion chamber 2 inner chamber cross sections are rounded, and air inlet pipe 7 connects air inlet of combustion chamber 1 along combustion chamber cross section tangential direction.The combustion chamber inner chamber can be arranged to sphere, spherical combustion chamber can be built with refractory brick, two angles of adjacent refractory brick can be close together, make adjacent refractory brick form certain angle, ground floor refractory brick can be formed a circle, second layer refractory brick is built on the angle that ground floor refractory brick forms, make second layer refractory brick can surround a littler circle, so just can be barricaded as the spheroidal inner chamber gradually, spread refractory cement or water material feeding at surface of internal cavity at last, rough surface of internal cavity more helps refractory cement and contacts firmly with surface of internal cavity.Air inlet of combustion chamber 1 is positioned on the sidewall of combustion chamber stringcourse cross section tangential direction, air inlet angle becomes an angle of 90 degrees with the radius of combustion chamber, air-flow adding of blower fan depress by air inlet pipe 7 along the combustion chamber tangential direction from air inlet 1 enter the combustion chamber after, under the circular inner wall effect, air-flow rotates in the combustion chamber, form eddy current, eddy current has prolonged the holdup time of fuel in the combustion chamber, make fuel and air better mixing even, improve the external environment condition of fuel combustion, better guaranteed the abundant burning of fuel.

Air inlet 1 can be selected multiple geometry, and to select rectangle for well, the long limit of rectangle is parallel perpendicular to the central axis on ground with the combustion chamber inner chamber, and rectangle is grown the limit can make arc line type according to the combustion chamber radian.Air inlet of combustion chamber can be provided with one and also can be provided with a plurality ofly, and the combustion chamber helps thermal convection current in the combustion chamber an air inlet to be set for well, helps improving the eddy current central temperature, also helps reducing equipment cost.

For alleviating air-flow and particle to the wearing and tearing of combustion chamber inwall and the scaling loss of inwall, can refractory masses 14 be set at the combustion chamber inwall, can use high-strength refractory material or ceramic material, can use materials such as carborundum, spread upon on the inwall after can directly these materials being made the mud shape, these material solidifications are after can form the shell of Wear-resistant, high-temperature resistant after the high-temperature calcination.

Can set out gas port 48 on top, combustion chamber, 48 centers, gas outlet, combustion chamber can be located on 2 central axis of combustion chamber, help air-flow formation spiral air flow in the quirk 46, help air motion, also help reducing quirk 46 dust stratifications, gas outlet, top, combustion chamber 48 areas are less than combustion chamber 2 the maximum cross-section areas, can help the combustion chamber and keep burning, also help improving chamber temperature, simultaneously can reduce dust and enter quirk 46, the ratio of top, combustion chamber gas outlet area and combustion chamber the maximum cross-section area can be selected 0.382:1.Gas outlet, combustion chamber area also can be smaller again, helps reducing dust more and enter the firing chamber more for a short time.

When use contains the fuel of ash content, gas outlet, bottom 32 can be offered in the bottom, combustion chamber, circle can be selected in gas outlet, bottom, combustion chamber 32, the ratio of the area of gas outlet, bottom 32 areas and maximum cross section, combustion chamber can be selected golden section proportion: 0.382:1, and 32 centers, gas outlet, bottom can be on the central axis of combustion chamber, and 32 bottoms, gas outlet, bottom are provided with ashpit 21, ash pipe 23 is established in the ashpit bottom, ash door 22 is established in the ash pipe bottom, and the ash door is airtight at ordinary times, opens during deashing.The combustion chamber maintenance time can enter personnel's maintenance from the gas outlet, bottom, and hour can open during maintenance at the default manhole of chamber wall very much the gas outlet, bottom, and maintenance finishes the back with refractory brick sealing, outsourcing insulation material.

The fiery fuel supply system of setting up an office on the air inlet pipe 7, the fiery device 9 of setting up an office on the air inlet pipe 7, igniter 9 is located near the air inlet of combustion chamber, and igniter can be established electronic ignition device, and igniter connects igniting cartridge 10, can the using gases fuel ignition, igniter can be regulated into fuel quantity, uses the coal can first using gases fuel ignition, re-uses cheap fuel such as heavy oil and further improves chamber temperature, when temperature acquires a certain degree, resupply coal dust, can reduce the igniting expense.The igniter fuel pipe can be designed to inclined-plane opening 24, and opening direction can make the easier air inlet pipe that enters of liquid or gaseous fuel towards the combustion chamber.When using pulverulent solids fuel, igniter also can be arranged in the cartridge, and shortcoming is to cause the igniter short circuit malfunctioning easily, causes igniting dangerous.

For the guarantee point fire safety can be provided with temperature sensor or watch-dog monitor temperature on the igniter side, guarantee to light a fire successfully.Also can establish the temperature sensor monitors temperature by 2 inwalls in the combustion chamber, can be according to adjustment blower fan intake and fuel feed.Air intake left by blower fan 8 during igniting, and air quantity will strengthen gradually, strengthens the fuel quantity that advances of igniter gradually, just can use various fuel when forming high temperature eddy current in the combustion chamber.

The combustion chamber also can be provided with the movable sealing fire hole, and available existing burning torch igniting after the igniting is extracted burning torch out, and fire hole is got final product with the sealing bolt sealing.The combustion chamber igniting is extremely easy, can light a fire at any time, also can cease fire at any time; can use any fuel, more economical more suitable which kind of fuel that just uses of which kind of fuel can use biomass fuel; can burn away the refuse, industrial precipitation slag etc.; also can use various fuel mix, can use the fire coal of various atures of coal, also can use meager coal, gangue; fire coal can fully burn; can use the bulky grain coal dust, the fuel burn-off rate can reach more than 99.9%, does not produce black smoke substantially.Exhaust emission standard can compare favourably with use coal gas effect, even also will get well.

When using solid fuel, earlier it is ground into a certain size particle, thin more good more, grain fineness is directly proportional with rotational speed of eddy current in combustion chamber internal diameter size and the combustion chamber, and internal diameter is more little, rotational speed of eddy current is low more, and the pulverized coal particle requirement is more little.Be protection combustion chamber inwall, to select for use little particle for well.Oarse-grained solid fuel enters behind the combustion chamber can being attached on the inwall of combustion chamber under the effect of rotary centrifugal force and burns, and forms adherent burning, can natural cracking, form littler particle, and can not fall into ashpit.Tiny particle can fully burn in eddy current; burning produces heat; hot-air makes progress away; the particle of burning is moved to top of combustion chamber; the grey branch of after-flame lowers the temperature naturally; can move to the bottom, combustion chamber with air-flow; can cool off gradually in the combustion chamber lower stream of airflow; proportion can increase; can move to exhaust outlet of combustion chamber with eddy current, form the eddy current that successively decreases of rotating speed from the center to the periphery in the combustion chamber lower stream of airflow, just as the whirlpool of water; quilts such as dust granules around can making and slag involve in the eddy current center, discharge from gas outlet, bottom, combustion chamber with eddy current and fall into ashpit.

The control fuel flow rate can be controlled combustion power, when using solid fuel, fuel tank 4 bottoms connect cartridge 6, and reducing motor is installed at the top, and motor connects a threaded rod, threaded rod runs through fuel tank, two ends use bearing fixing on fuel tank up and down, and the threaded rod lower end is led in the cartridge, and reducing motor drives threaded rod and rotates, solid fuel can be entered in the cartridge smoothly, avoid the dusty fuel caking simultaneously.Connect control valve 5 on the cartridge, it is made of a sideboard, and it can all be shut cartridge also and can all open, and controls its folding and just can control fuel flow rate, can control combustion intensity.Section is led in coal powder fan 91 air inlets at the bottom of the cartridge, and its inclined-plane opening, opening direction and airflow direction can make air-flow that cartridge is produced suction in the same way like this, help solid fuel and enter coal powder fan 91 air inlets.Also can use existing coal-grinding and powder-spraying machine directly to supply with fuel when using coal dust to the combustion chamber.Flow directly into coal powder fan after also raw coal can being pulverized with pulverizer, control pulverizer discharging speed can be controlled pulverized coal flow.For avoiding coal dust carrier pipe 97 inner wall abrasion, can in the coal dust carrier pipe, establish one deck internal lining pipe, may wear to and to a certain degree change internal lining pipe and get final product.Coal dust carrier pipe outlet 90 abuts against with air inlet of combustion chamber 1, is in air inlet side (as shown in Figure 2) and helps fuel and mix better with gas, and the while can alleviate the wearing and tearing of coal dust to the combustion chamber inwall.

When using coal to act as a fuel in order to reduce the harmful substance of discharging in the gas, can adopt multiple purification method, can in air inlet pipe or coal dust carrier pipe, add a certain proportion of limestone powder according to the use amount of coal dust or coal slurry during desulfurization, the method that can adopt solid fuel to supply with adds: in the coal dust carrier pipe feed pipe is set, feed pipe connects control valve, and control valve connects the limestone powder hopper.Desulphurization reaction can the eddy current in the combustion chamber in and fully reaction in the eddy current cyclone in the exhaust chamber, exhaust in the combustion chamber is cooled off gradually, exhaust simultaneously is an eddy current cyclone, desulphurization reaction can fully react in the combustion chamber and generate calcium sulfite, and discharge tail gas can adopt existing cleaner and exhaust gas purification apparatus further to purify.

Gas outlet, heating clamber top 42 and charge door 40 are set to one, can be directly reinforced in charge door, waste gas can directly be discharged from charge door, utilize blower fan 8 pressurizations to make the combustion chamber form malleation, the thermal current that the combustion chamber is produced enters the firing chamber, make air inlet 33 above and belows in firing chamber's form burning zone, make air inlet 33 belows form the downflow type heating, but the better heating material.Make heating clamber top form the preheating zone, make discharging opening place, cooling chamber bottom form salband, but the better utilization heat.Can temperature sensor be set in the preheating zone, can adjust discharging speed, can utilize conveyer self-emptyings such as conveyer belt according to temperature sensor.Can level-sensing device be set at charge door, can utilize conveyer auto feeds such as conveyer belt.The present embodiment scheme can reduce cost, and shortcoming is that waste gas is not handled and promptly entered atmosphere, can be used for lime production, can fire little lump lime, can utilize stone to adsorb most of dust, but the interior lime desulfurization of heating clamber simultaneously, and waste gas can realize discharging environmental protection substantially.

Two the structure of the utility model embodiment is: on above architecture basics, for the hot gas that the combustion chamber is produced enters heating clamber, heating clamber gas outlet 42 connects air-introduced machine 45, the suction that utilizes blower fan to produce makes and forms negative pressure in the heating clamber, the Hot air quilt that the combustion chamber is produced sucks heating clamber, more help hot gas and enter heating clamber, blower fan will have certain temperature tolerance, blower fan can be controlled air quantity with variable-frequency motor, enter atmosphere after the tail gas that blower fan is discharged can being handled, can utilize tail gas to extract carbon dioxide during burnt lime.The charge door top is provided with hopper, and hopper is increased, and utilizes the material in the hopper that charge door is sealed, and blower fan can be sucked waste gas better discharge, and plays dust in the time of can avoiding reinforced simultaneously.This programme is environmental protection more.

Three the structure of the utility model embodiment is: on above architecture basics, for better making fuel combustion abundant, avoid the various waste gas that shaft furnace produces are directly discharged, can adopt the method for waste gas being carried go back to again the combustion chamber, utilize the high temperature of combustion chamber that the oxious component in the tail gas is carried out harmless treatment, make the combustible in the tail gas enter the combustion chamber second-time burning simultaneously.Heating clamber charging aperture 38 is established movable sealing device 41, the movable sealing device can adopt mechanization or semi-mechanized operation, can establish the movable sealing door, when filling with substance is opened the movable sealing door, and charging finishes and closes the movable sealing door, and it is fast that charging speed is wanted, can above hermatic door, establish the funnel-form hopper, hermatic door can be used gland-type, and an end is established rotating shaft, and the other end is established latch and got final product.Charging aperture also can be established the movable sealing feed arrangement, can establish bell, a movable sealing door is established at the bell top, a movable sealing door is also established in the bell bottom, when filling with substance is closed bottom movable sealing door, open the charging of top movable hermatic door, after bell is filled, close the top movable hermatic door, open bottom movable sealing door and make material fall into the firing chamber, close bottom movable sealing door then, open the charging of top movable hermatic door, the continual charging that can go round and begin again like this can not influence the thermal cycle in the firing chamber.Also available existing good sealing performance rotary discharger can continually feed in raw material when adding cobbing.Air-introduced machine 45 connects tracheae 47, tracheae 47 can be used iron pipe, outside palpus parcel insulation material, temperature sensor can be set in tracheae, air quantity according to the adjustment blower fan, tracheae connects the combustion chamber, tracheae bottom 50 connects the middle and upper part, combustion chamber, can establish many bronchuses 3 in the middle and upper part, combustion chamber, bronchus 3 connects tracheae 47, bronchus can be provided with along combustion chamber cross section tangential direction, can make in the bronchus air-flow comply with that the eddy motion direction enters the combustion chamber in the combustion chamber, make the combustible in the air-flow reenter second-time burning in the eddy current, make fuel combustion abundant, non-combustible gas in the air-flow and grey branch natural subsidence in the air-flow of eddy motion, natural subsidence was to the bottom, combustion chamber after grey branch was thrown on the sidewall of combustion chamber under action of centrifugal force, portion gas outlet 32 is set in the bottom, combustion chamber, and the non-combustible gas of natural subsidence and ash content are discharged from the gas outlet, bottom.The downward exhaust in combustion chamber makes fuel prolong greatly in the holdup time of combustion chamber, has prolonged the burning time of fuel, makes better fully burning of fuel.Gas outlet, bottom 32 is communicated with exhaust chamber 15, and exhaust chamber 15 is established exhaust outlet, and exhaust chamber has certain altitude, and the exhaust chamber exhaust outlet is expanded gradually, can make heat better motion upward, and heat energy is made full use of.

The area of gas outlet, bottom, combustion chamber and the ratio of air inlet of combustion chamber area can be selected as required, and gas outlet, bottom, combustion chamber area can improve internal pressure of combustion chamber less than the air inlet area.Gas outlet, a plurality of bottom also can be established in the combustion chamber, and they can be distributed in the bottom, combustion chamber, and advantage is to help slag to discharge, and shortcoming is to be unfavorable for simplified structure, and unburnt particle is discharged from the combustion chamber, is unfavorable for full combustion of fuel.Gas outlet, bottom, combustion chamber 32 is communicated with exhaust chamber 15, and exhaust chamber is established exhaust outlet, and the ratio of combustion chamber inner chamber height and exhaust chamber height selects 0.618:0.382 for well, and heat is fully utilized better.The exhaust chamber exhaust outlet is expanded gradually, but exhaust chamber exhaust outlet better utilization heat energy down.For the ease of building, exhaust chamber can build up square or polygons, and 32 need in gas outlet, bottom, combustion chamber are smeared with refractory cement and made round mouth and get final product.Exhaust chamber 15 connects air and adopts hot cell 29, and air adopts the hot cell and exhaust chamber can build up one, and available refractory brick builds up one, and air adopts the also available clay brick in hot cell or concrete makes up, and can reduce cost.Air is adopted the bottom, hot cell ashpit 21 is set, and ash pipe 23 is established in the ashpit bottom, and ash door 22 is established in the ash pipe bottom, the ash door is airtight at ordinary times, open during deashing, when using clean fuel, ashpit is mainly used to deposit the wind that is recycled that produces in the material sintering procedure and takes dust in the combustion chamber to.Ashpit top sets out gas port 19, and the gas outlet can be established control valve and be controlled out atmospheric pressure, can make the combustion chamber form malleation, and the thermal current that the combustion chamber is produced can utilize that chamber pressure is easier to enter in the firing chamber.Gas outlet 19 connects the tail gas clean-up facility, and the tail gas clean-up facility can also can utilize acid exhaust, extract chemical substance etc. tails dedusting, desulfurization, denitrogenation etc.

Air is adopted and is established air in the hot cell 29 and adopt heat pipe 16, and air is adopted heat pipe air inlet 18 and is positioned at air and adopts the bottom, hot cell, can adopt the bottom, hot cell around air a plurality of air inlets are set, and it is even to help air inlet.Air is adopted the heat pipe gas outlet and is positioned at air and adopts top, hot cell, air is adopted the heat pipe surface and heat supply sheet can be set be improved and to adopt the thermal efficiency, air is adopted heat pipe can adopt the setting of spiraling in the hot cell at air, top house steward and bottom house steward 20 also can be set, connect many vertical tubes 17 between top house steward and the bottom house steward, vertical tube is thin more good more, quantity is The more the better, can increase that to adopt hot side long-pending, vertical tube can make in the pipe gas realize thermal convection current better simultaneously, can better adopt heat.It is opposite with the discharge directions of tail gas that air is adopted the heat pipe airintake direction, can collect the heat of least significant end in the tail gas with the coldest air, thereby gather waste heat to greatest extent.Air is adopted the height in hot cell and the coefficient of heat conduction that air is adopted heat pipe has determined the waste heat acquisition rate, gathers waste heat and does not increase the height that air is adopted the hot cell for more, can laterally add long air to adopt the hot cell, until the exhaust temperature of discharging reach minimum till.

Air is adopted the heat pipe gas outlet and is connected air inlet pipe 7, and blower fan 8 is installed on the air inlet pipe, and blower fan 8 can be controlled air quantity with variable-frequency motor.Air inlet pipe is adopted heat pipe collection waste heat by air and is made gas flow temperature raising in the air inlet pipe, and blower fan is constantly supplied with the high-temperature gas that heated to the combustion chamber, can improve capacity usage ratio greatly.Blower fan also can be located at air and adopt heat pipe air inlet place, and pressurization is sent into air and adopted heat pipe after normal temperature air can being sucked, and the air after the heating enters air inlet pipe again, can alleviate blower fan and be heated, and blower fan gets final product with the normal temperature blower fan, can alleviate equipment manufacturing cost.This programme can be used for firing block cement, can mix a certain proportion of coal dust in cement slurry, can accelerate to fire speed, can make the carbon monoxide that produces in the sintering procedure come back to second-time burning in the combustion chamber, energy-conserving and environment-protective more.

Chamber pressure is low in the present embodiment, be difficult for causing tempering, can utilize air inlet pipe to replace fuel-supply pipe, cartridge can be set directly in the air inlet pipe, when being to use solid fuel, shortcoming causes the blower fan wearing and tearing easily, use coal powder fan must strengthen the blower fan cost, also cause air inlet pipe and combustion chamber inner wall abrasion simultaneously easily.

Four the structure of the utility model embodiment is: on above architecture basics, the bottom, combustion chamber is communicated with deslagging chamber 66, and deslagging chamber 66 offers slag flow port 65, and dedusting core pipes 67 are installed in 2 gas outlets 46 in the combustion chamber.When firing the material that needs the high temperature heating, high temperature need be brought up in the combustion chamber, when firing ordinary material, for further improving combustion chamber heat efficient, also can adopt the method that significantly improves chamber temperature, when employing coal etc. contains the fuel of a large amount of ash contents, can form a large amount of slags, slag can flow down along the combustion chamber inwall, the slag tap scheme can be adopted in the combustion chamber, can primary furnace 66 be set in the bottom, combustion chamber, and primary furnace is offered slag flow port 65, stop up with stopper when slag flow port 65 is flat, open stopper during deslagging slag is flowed out from slag flow port.

When the fuel production that the combustion chamber uses coal etc. to contain ash content is afraid of by the material of contamination by dust, for further avoiding dust to enter the firing chamber, dedusting core pipe 67 can be installed in 2 gas outlets, combustion chamber, the sealing of dedusting core pipe bottom, the top is provided with the gas outlet, the gas outlet is the same with gas outlet, top, combustion chamber area, dedusting core pipe sidewall is offered gas channel, gas channel becomes the angle of inclination with dedusting core pipe radius, the airintake direction of gas channel is opposite with the direction of rotation of eddy current in the combustion chamber, can guarantee better that dust can not enter dedusting core pipe.Dedusting core pipe will adopt high-temperature refractory, can be directly installed on place, gas outlet, top, can be contained in the gas outlet, top with plug material plug, gets final product with refractory cement is fixing.Be better dedusting, dedusting core pipe 67 also can adopt conical structure, the awl point vertically downward, the awl end, be connected in the gas outlet, top, combustion chamber, the gas channel that inclination is offered in the circular cone side gets final product, and conical dedusting core pipe more helps dedusting, to more not influence of eddy motion in the combustion chamber, the eddy current rotation more is difficult for having influence on the stable of it, its longer service life.This programme can be used for firing aluminium oxide etc.

Five the structure of the utility model embodiment is: on above architecture basics, establish refractory material hole frame in the firing chamber, frame bottom, refractory material hole is seated on the fire grate, fire grate can be made with rail, refractory material hole frame directly is seated on the rail and gets final product, the fire grate size is the same with firing chamber's bottom size, and material basket is established in the fire grate below.Frame available square firebrick 57 in refractory material hole assembles, and the ratio that refractory brick 57 length and width are high can be selected: 1:1:0.5, refractory brick is interlaced, reserves hole each other, guarantees that powder material can leak down between hole.Discharge from the firing chamber for avoiding powder material, cross section is rounded in the firing chamber, the firing chamber establishes on top sidewall air inlet 77, the top, firing chamber is provided with dedusting core pipe 56, dedusting core pipe 56 available iron pipes are made, the gas channel that dedusting core pipe sidewall is offered can be made with 58 welderings of bar shaped sheet material, the sealing of dedusting core pipe bottom, dedusting core pipe top is provided with the gas outlet, dedusting core pipe top connects dedusting fan 68 air inlets, dedusting fan 68 gas outlets connect dedusting air inlet pipe 69, dedusting air inlet pipe 69 connects firing chamber's upper portion side wall air inlet 77 along top, firing chamber cross section tangential direction, dedusting air inlet pipe 69 makes dedusting core pipe form eddy current outward, dedusting core pipe 56 sidewalls are offered gas channel 55, gas channel becomes the angle of inclination with dedusting core pipe radius, and the incline direction of gas channel is opposite with the direction of rotation of the outer air-flow of dedusting core pipe, can guarantee better that powder material can not enter dedusting core pipe.Establish feed pipe 52 in the dedusting core pipe, dedusting core pipe bottom is passed in the feed pipe outlet, the feed pipe import is located at outside the firing chamber, the feed pipe import connects hopper 53, hopper 53 is established whirligig, avoids the powder caking, guarantees that powder falls into the firing chamber from feed pipe, also sealed rotary discharger can be set, directly discharging in feed pipe.Powder falls on the refractory material hole frame of firing chamber from feed pipe after, the disorderly air-flow in firing chamber blow and the effect of natural subsidence under, from between the frame of refractory material hole, fall, powder can be shelved the regular hour on the frame of refractory material hole, can be heated, and refractory material can be directly passed to powder to the heat that absorbs, also can give powder heat radiation, disorderly air-flow also can be the heat transferred powder, and disorderly air-flow has been accelerated hot transmission simultaneously, and granular material is fired maturation gradually in infall process.But be suitable for this programme dry production cement, fire powder material such as aluminium oxide.

Six the structure of the utility model embodiment is: on the architecture basics of embodiment three, when firing the material that needs the high temperature heating, high temperature need be brought up in the combustion chamber, when firing ordinary material, for further improving combustion chamber heat efficient, also can adopt the method that significantly improves chamber temperature, when employing coal etc. contains the fuel of a large amount of ash contents, can form a large amount of slags, slag can flow down along the combustion chamber inwall, the slag tap scheme can be adopted in the combustion chamber, can setting up up and down in exhaust chamber, two dreg discharging caps form deslagging chamber 66, pore 74 is offered at dreg discharging cap 70 centers in bottom, pore 74 equates with gas outlet, bottom, combustion chamber 32 areas, bottom dreg discharging cap 70 is arranged to remove the circular cone annular of awl point, top dreg discharging cap 72 can be arranged to taper shape, the top dreg discharging cap is less than the bottom dreg discharging cap, the bottom margin of top dreg discharging cap covered the pore edge of bottom dreg discharging cap, keep at a certain distance away between the dreg discharging cap up and down, can prop up with refractory brick and set up, reserve gas channel 73 between the refractory brick, dreg discharging cap edge, bottom and exhaust chamber inwall are joined together to form slag mortise 71, the slag mortise is looped around and forms deslagging chamber 66 on the exhaust chamber inwall, deslagging chamber's sidewall is offered slag flow port 65, stop up with stopper when slag flow port 65 is flat, open stopper during deslagging slag is flowed out from slag flow port.Dreg discharging cap can form by a firing with refractory material is disposable, and dreg discharging cap also available refractory brick in large-scale combustion chamber is built into, and can establish crossbeam with fire-resistant when brick, and crossbeam can be fired with refractory material, and refractory brick is laid on the crossbeam and gets final product.Slag can flow on the dreg discharging cap of bottom from the top dreg discharging cap, flows into the slag mortise again, and air-flow passes the pore of back by dreg discharging cap center, bottom from the gas channel between top dreg discharging cap and the bottom dreg discharging cap and enters air and adopt the hot cell.This programme can be used for firing aluminium oxide etc., can make to produce more environmental protection.

Seven the structure of the utility model embodiment is: on above architecture basics, some variation of chamber structure, combustion chamber inner chamber cross section is square, and four air inlets are established in the combustion chamber, and air inlet pipe connects air inlet of combustion chamber along the parallel lines direction on cross section limit, combustion chamber.The present embodiment advantage is to have reduced the friction of air-flow to the combustion chamber inwall, but whole structure is circular structure not as the combustion chamber cross section, be unfavorable for thermal convection current in the combustion chamber, the temperature that is unfavorable for the eddy current center improves, be unfavorable for full combustion of fuel, be unfavorable for that the combustion chamber keeps burning, improved equipment manufacturing cost.

Each compressor flow in the utility model can come the layout computer program according to temperature sensor, can control combustion chamber power by computer, computer control fuel flow rate, computer control chamber temperature, computer control firing chamber temperature can use existing computer technology that equipment is carried out Microcomputer Management.

The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model.The utility model not technology contents of detailed description is known technology.

Claims

1, shaft furnace comprises: fuel supply system, the combustion chamber, the firing chamber, blower fan, tracheae, refractory material, insulation material, it is characterized in that: combustion chamber (2) sidewall is established air inlet (1), air inlet (1) connects air inlet pipe (7), blower fan (8) is installed on the air inlet pipe, combustion chamber (2) connects fuel supply system, the firing chamber establishes heating clamber (36) and cooling chamber (28), the heating clamber bottom is communicated with cooling chamber, charging aperture (40) is established on heating clamber top, heating clamber top sets out gas port (42), discharging opening (27) is established in the cooling chamber bottom, establish firing chamber's air inlet (33) between heating clamber and the cooling chamber, combustion chamber (2) sets out gas port (48), and gas outlet, combustion chamber (48) are communicated with firing chamber's air inlet (33).

2, shaft furnace according to claim 1 is characterized in that: firing chamber's sidewall is established many pressurization air inlet pipe (51), and pressurization air inlet pipe (51) connects booster fan (44).

3, shaft furnace according to claim 2 is characterized in that: pressurization air inlet pipe (51) is provided with along firing chamber's cross section tangential direction.

4, shaft furnace according to claim 2 is characterized in that: discharging opening (27) is communicated with material chamber (26), and material chamber (26) sets out gas port (92), and gas outlet (92) connect booster fan (44) air inlet.

5, shaft furnace according to claim 1 is characterized in that: cooling chamber (28) is established air inlet (95), and air inlet (95) connects cooling blower (94) gas outlet.

6, shaft furnace according to claim 1 is characterized in that: combustion chamber (2) inner chamber cross section is rounded, air inlet pipe (7) connects air inlet of combustion chamber (1) along combustion chamber cross section tangential direction, the fiery fuel supply system of setting up an office on the air inlet pipe (7), the fiery device (9) of setting up an office on the air inlet pipe (7).

7, shaft furnace according to claim 1 is characterized in that: heating clamber gas outlet (42) connect air-introduced machine (45).

8, shaft furnace according to claim 7 is characterized in that: charging aperture (40) is established movable sealing device (41), and air-introduced machine (45) connects tracheae (47), and tracheae (47) connects combustion chamber (2), and portion gas outlet (32) is set in the bottom, combustion chamber.

9, it is characterized in that according to claim 1,2,3,4,5,6,7 or 8 each described shaft furnaces: bottom, combustion chamber (2) is communicated with deslagging chamber (66), and deslagging chamber (66) offers slag flow port (65).

10, it is characterized in that according to claim 1,2,3,4,5,6,7 or 8 each described shaft furnaces: establish refractory material hole frame in the firing chamber.