CN104567370B - A kind of microwave double helix tubular type stove and utilize this microwave double helix tubular type stove to combine the method for preparing manganeisen with mineral hot furnace - Google Patents

A kind of microwave double helix tubular type stove and utilize this microwave double helix tubular type stove to combine the method for preparing manganeisen with mineral hot furnace Download PDF

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CN104567370B
CN104567370B CN201410749057.1A CN201410749057A CN104567370B CN 104567370 B CN104567370 B CN 104567370B CN 201410749057 A CN201410749057 A CN 201410749057A CN 104567370 B CN104567370 B CN 104567370B
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microwave
microwave cavity
double helix
tubular type
type stove
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CN104567370A (en
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彭金辉
叶乾旭
陈菓
周俊文
杨大锦
张利波
郭胜惠
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
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Abstract

The present invention relates to a kind of microwave double helix tubular type stove and utilize this microwave double helix tubular type stove to combine the method for preparing manganeisen with mineral hot furnace, belonging to microwave equipment and manganese metallurgical technology field. This microwave double helix tubular type stove comprises frame, microwave cavity and three parts of double helix agitating device. The preroast that the present invention adopts this microwave double helix tubular type stove to carry out manganese ore obtains hot material, then hot material is placed in to mineral hot furnace melting and obtains manganeisen. This tube furnace adopts heating using microwave, can make material realize contactless direct Fast Heating; The layout of this reactor magnetron, the efficiency that makes microwave energy be converted into heat energy greatly improves; The combinations matches of a large amount of low-power magnetrons has realized the successful research and development of the HIGH-POWERED MICROWAVES reactor that industrial production uses, and this method is with short production cycle, energy consumption is low, can properly settle cold burden and enter various harmful phenomenon that stove causes.

Description

A kind of microwave double helix tubular type stove and utilize this microwave double helix tubular type stove to combine the method for preparing manganeisen with mineral hot furnace
Technical field
The present invention relates to a kind of microwave double helix tubular type stove and utilize this microwave double helix tubular type stove to combine system with mineral hot furnaceThe method of standby manganeisen, belongs to microwave equipment and manganese metallurgical technology field.
Background technology
Heating using microwave is that newly-developed gets up and ripe heating technique day by day, has contactless direct heating, and body addsHeat, heating rate is fast, can promote interparticle infiltration, can carry out the advantages such as temperature control to institute's material handling in time.
The design of high-power multimode cavity heating using microwave reactor is the bottleneck of industry always. Due to low-power magnetron combinationThe usefulness of the HIGH-POWERED MICROWAVES reactor becoming is low, is mainly the unreasonable of chromium magnetron installation site, causes each magnetron to sendElectromagnetic wave mutually interfere and offset and cause magnetron life significantly to shorten.
In modern industry, manganeisen has very important strategic position. In iron and steel and stainless steel manufacture process,The application of manganeisen is very extensive, and consumption is iron and steel output 0.8 ~ 0.9%, and this type of consumption accounts for the 85-of manganese aggregate demand90%。
The current key industry production technology of manganeisen is directly into blast furnace or mineral hot furnace by carbon containing manganese ore " cold burden "Carry out melting. The advantage of this technique is, if use the higher large lumpiness ore (50-80mm) of price, required supporting attachedEquipment is relatively less. But it has serious defect: the load of smelting furnace is large, and the production cycle is long, and productivity ratio is lower, and in meltingIn journey, be prone to the harmful phenomenons such as material, splash of collapsing. If adopt the ore of the lower little lumpiness of price, need supporting sintering machine,The equipment such as cooling device, pulverizer, the cooling very big meaningless dissipation that causes heat before pulverizing, makes manganeisen energy consumptionSignificantly raise.
Expect in recent years also there is relevant report into stove for heat. Patent CN1912159A, by silica, manganese ore, dolomite, rich manganese slagAfter mixing with ferric manganese ore powder in rotary kiln through 850-1300 DEG C process 50-70min, be 5-by the granularity obtaining then70mm, temperature are that the hot material of 680-900 DEG C enters mineral hot furnace melting after coke powder. This method has obvious inherent shortcoming,The one, to heat up slower, the sintering processes time is long, causes the production cycle long; The 2nd, in sintering process, do not add reducing agent and cause high priceMnxOyNeed at high temperature, could decompose preferably; The 3rd, rotary kiln is prone to the phenomenons such as ring formation in sintering process; FourThe flue-gas temperature that is rotary kiln is high, and capacity usage ratio is low, and energy consumption is high; The 5th, the lumpiness control difficulty of sintering deposit is large; The 6th, revolutionKiln plant is huge, and floor space is large, needs extra power consumption etc.
4MnO2=2Mn2O3+O2(g)
6Mn2O3=4Mn3O4+O2(g)
2Mn3O4=6MnO+O2(g)
Heating using microwave is comparatively novel high-efficiency heating mode, has heating rate fast, entirety heating, capacity usage ratioHeight, the advantage such as floor space is little.
Therefore, a kind of short period of exploitation, low energy consumption, high production rate, the technique of the continuous production run of high stable has veryImportant meaning.
Summary of the invention
The problem and the deficiency that exist for above-mentioned prior art, the invention provides a kind of microwave double helix tubular type stove and utilizationThis microwave double helix tubular type stove is combined the method for preparing manganeisen with mineral hot furnace. This tube furnace adopts heating using microwave, can make thingMaterial is realized contactless direct Fast Heating; The layout of this reactor magnetron, makes microwave energy be converted into the efficiency of heat energy largeFor improving; The combinations matches of a large amount of low-power magnetrons has realized the success of the HIGH-POWERED MICROWAVES reactor that industrial production uses and has groundSend out, this method is with short production cycle, energy consumption is low, can properly settle cold burden and enter various harmful phenomenon that stove causes, the present invention by withLower technical scheme realizes.
Principle of the present invention is following, and (atmospheric pressure in Chinese yunnan Kunming is 81444Pa, CO2Accounting is 0.03%):
CaCO3=CaO+CO2(g)
Mn2O3+C=2MnO+CO(g)
A kind of microwave double helix tubular type stove, comprises frame 2, microwave cavity and three parts of double helix agitating device;
Described frame 2 encapsulates top board A3 by the frame of upper surface and frame encapsulates top board B7, all around the frame of side is sealedThe frame package floor composition of dress side plate A10, bottom surface, frame encapsulation side plate A10 surface is provided with pulling buckle 9, frame package floorBe provided with frame support pin 11;
Described microwave cavity is positioned at frame 2 upper inside, microwave cavity comprise before and after both sides microwave cavity side plate A56 andThe microwave cavity top at the microwave cavity end cap 17 of microwave cavity side plate B58, the left and right sides and microwave cavity charging end plate 57, topThe microwave cavity base plate of plate 5 and bottom, microwave cavity side plate A56 and microwave cavity side plate B58 are provided with thermometer hole 41, microwave feedbackMouth 27, microwave feedback mouth 27 is provided with magnetron 28 and waveguide 29, microwave cavity end cap 17 and the microwave cavity charging of collocation between twoOn end plate 57, be respectively equipped with air admission hole 18 and microwave cavity discharging end plate air admission hole 54, microwave cavity top board 5 is by gripper shoe A21Be connected with microwave cavity top board 5, microwave cavity top board 5 is provided with cooling fan and cooling fan fixing hole 20, at the bottom of microwave cavityOn plate, be provided with microwave cavity base plate discharging opening 55 by discharge nozzle fixed head 35, microwave cavity base plate discharging opening 55 is provided with tremie pipeFlange 36, microwave cavity base plate discharging opening 55 is connected with discharging stepper motor 38, and discharging stepper motor 38 is by discharging stepping electricityMachine fixed head 39 is fixed on microwave cavity bottom, microwave cavity also comprise fume pipe flange 4, fume pipe 37, feed pipe flange 8,Feed pipe 22, filament box 33, water inlet manifold 12 and always go out cooling water pipe, frame encapsulation top board one side is provided with fume pipe 37, entersMaterial pipe 22, fume pipe 37, feed pipe 22 tops are respectively equipped with fume pipe flange 4 and feed pipe flange 8, and fume pipe 37 is provided with cigaretteTracheae thermometer hole 34, filament box 33, water inlet manifold 12 are fixed on frame 2 inside, and adjacent at the bottom of microwave cavity side plate successivelyPortion's one side, water inlet manifold 12 is provided with and is divided into cooling water pipe 32, and the water pipe connection magnetron 28 being divided on cooling water pipe 32 enters waterMouthful, magnetron 28 delivery ports with always go out cooling water pipe and be connected, always go out cooling water pipe and be provided with always go out cooling water pipe flange 26 and be positioned atNear the microwave cavity side plate side of feed pipe 22 1 sides;
Described double helix agitating device comprises inner chamber body top board 46, the inner chamber body discharging end plate 50 of both sides, the front and back at topThe inner chamber body bottom support plate 51 of inner chamber body side plate 53, bottom inner chamber body base plate 52 and the bottom inner chamber body base plate 52 of side, inner chamberBody top board 46 tops are provided with microwave cavity top plate supporting bar 18, and inner chamber body top board 46 surfaces are provided with exhanst gas outlet and charging aperture, twoIn the middle of spiral agitator, insert shaft 1, double helix bar 47 is installed on shaft 1, shaft 1 end, one end connects discharge endBearing 14, discharge end bearing 14 is arranged on discharge end bearing block 15, and discharge end bearing 14 is provided with discharge end bearing air ring 16,Discharge end bearing air ring 16 is provided with single piece type ball valve 40, and it is cooling that shaft 1 other end end connects feed end bearing successivelyRing 44, feed end bearing 24, driven sprocket 23, feed end bearing 24 connects feed end bearing block 25, shaft 1 and planetary reduction gearMachine 42 connects.
Described shaft 1 is hollow form.
Described microwave cavity is ceramic wave-transmitting material.
Described double helix bar 47 is that distance is 3mm, double helix bar 47 spirals with the inner chamber body of double helix agitating device bottomThe inside and outside double-spiral structure of opposite direction.
Microwave double helix tubular type stove is combined a method of preparing manganeisen with mineral hot furnace, its concrete steps are as follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 5 ~ 80mm, 1 ~ 30mm, then by fragmentationManganese ore, carbonaceous reducing agent be (65 ~ 80) according to mass ratio: (35 ~ 20) mix and obtain mixed material;
Step 2, the mixed material that step 1 is obtained are transported to the charging of microwave double helix tubular type stove by raw material conveyer belt 62In pipe 22, then in microwave double helix tubular type stove, be heated to 750 ~ 950 DEG C of preroast 20 ~ 50min acquisition temperature and maintain 700The hot material without sintering, low-powder ratio of ~ 950 DEG C, this hot material is without moisture, carbonate decomposition rate and value Mn oxidePercent reduction reaches 70 ~ 92%;
Step 3, the hot material that step 2 is obtained are discharged from microwave double helix tubular type stove microwave cavity base plate discharging opening 55Enter into heat material storage warehouse 64, the hot material from heat material storage warehouse 64, step 2 being obtained is placed in mineral hot furnace 69, adds burntAfter charcoal, temperature is heated to 1450 ~ 1550 DEG C of melting 3 ~ 4.5h in mineral hot furnace and prepares manganeisen.
Manganese ore in described step 1 is that mass percent composition is: MnxOy35~55%,FexOy5~10%,CaCO35~25%。
In described step 1, carbonaceous reducing agent is petroleum coke, coke, coal or charcoal.
Above-mentioned 70 ~ 92% refer to manganese ore weight-loss ratio and the manganese ore when through microwave calcination after carbon containing manganese ore finish-dryingThe ratio of theoretical weight-loss ratio when the thorough decomposition of carbonate and value Mn oxide are thoroughly reduced to MnO in stone.
The invention has the beneficial effects as follows: (1) Design and manufacture of the present invention industrial HIGH-POWERED MICROWAVES high-temperature reactor, canRealize the microwave high-temperature processing of the bulk material of the industries such as large chemical industry, metallurgy and food; (2) the present invention is easy to realize process flowThe automation of journey, intellectuality; (3) capacity usage ratio that the present invention is high is easy to realize the serialization industrial production of green low-energy consumption;(4) microwave spiral tube furnace calcining carbon containing manganese ore is produced the heat material for mineral hot furnace, because heating using microwave heating rate is fast,Heat utilization efficiency is high, therefore can realize the calcine technology of short period, low energy consumption; Mineral hot furnace and microwave spiral tube furnace are rationally distributed,The path of material transportation can be simplified, the deadweight loss of high-heat hot material heat in the process of transporting can be reduced to greatest extent; (5) originallyMethod can be used the manganese ore of the little lumpiness that price is lower, has higher society, environment and economy benefit.
Brief description of the drawings
Fig. 1 is microwave double helix tubular type furnace structure schematic diagram of the present invention;
Fig. 2 is microwave double helix tubular type stove partial schematic diagram of the present invention
Fig. 3 is that microwave double helix tubular type stove of the present invention is removed frame, package board, frame support leg structure schematic diagram;
Fig. 4 is that microwave double helix tubular type stove of the present invention is removed frame, package board, frame support pin front elevational schematic;
Fig. 5 is that microwave double helix tubular type stove of the present invention is removed frame, package board, frame support pin, feed end left side depending on showingIntention;
Fig. 6 is that microwave double helix tubular type stove of the present invention is removed microwave cavity, filament box, always cooling water pipe is overlooked signalFigure;
Fig. 7 is that microwave double helix tubular type stove of the present invention is removed microwave cavity, filament box, always cooling water pipe is overlooked signalFigure;
Fig. 8 is microwave double helix tubular type furnace cavity plate schematic diagram of the present invention;
Fig. 9 is that microwave double helix tubular type stove of the present invention is combined the equipment preparation figure for preparing manganeisen with mineral hot furnace.
In figure: 1-shaft, 2-frame, 3-frame encapsulation top board A, 4-fume pipe flange, 5-microwave cavity top board, 6-is looseAir-heater A, 7-frame encapsulation top board B, 8-feed pipe flange, 9-pulling buckle, 10-frame encapsulation side plate A, 11-frame support pin,12-water inlet manifold, 13-divides water inlet pipe, 14-discharge end bearing, 15-discharge end bearing block, 16-discharge end bearing air ring, 17-Microwave cavity end cap, 18-air admission hole, 19-cooling fan B, 20-cooling fan fixing hole, 21-gripper shoe A, 22-feed pipe,23-driven sprocket, 24-feed end bearing, 25-feed end bearing block, 26-always goes out cooling water pipe flange, the feedback mouthful of 27-microwave, 28-Magnetron, 29-waveguide, 30-always enters cooling water pipe flange, and 31-always enters cooling water pipe fixed head, and 32-is divided into cooling water pipe, 33-Filament box A, 34-fume pipe thermometer hole, 35-discharge nozzle fixed head, 36-tremie pipe flange, 37-fume pipe, 38-discharging steppingMotor, 39-discharging stepper motor fixed head, 40-single piece type ball valve; 41-thermometer hole, 42-planetary reducer, 43-filament boxB, 44-feed end bearing air ring, 45-inner chamber body exhanst gas outlet top board, 46-inner chamber body top board, 47-double helix bar, 48-microwaveCavity top plate supporting bar, 49-inner chamber body charging aperture top board, 50-inner chamber body discharging end plate, 51-inner chamber body bottom support plate, 52-Inner chamber body base plate, 53-inner chamber body side plate, 54-microwave cavity discharging end plate air admission hole, 55-microwave cavity base plate discharging opening, 56-Microwave cavity side plate A, 57-microwave cavity charging end plate, 58-microwave cavity side plate B, 59-microwave double helix tubular type stove, 60-is saturatingRipple heat-preservation cotton, 61-wave transparent earthenware microwave cavity, 62-raw material conveyer belt, 63-raw material, 64-heat material storage warehouse, 65-valve A,66-weighing cabin, 67-valve B, 68-mineral hot furnace feed pipe, 69-mineral hot furnace, 70-does not melt high-temperature material, 71-molten bath, 72-electricityThe utmost point.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1
As shown in Fig. 1 to 8, this microwave double helix tubular type stove, comprises frame 2, microwave cavity and double helix agitating device threeIndividual part;
Described frame 2 encapsulates top board A3 by the frame of upper surface and frame encapsulates top board B7, all around the frame of side is sealedThe frame package floor composition of dress side plate A10, bottom surface, frame encapsulation side plate A10 surface is provided with pulling buckle 9, frame package floorBe provided with frame support pin 11;
Described microwave cavity is positioned at frame 2 upper inside, microwave cavity comprise before and after both sides microwave cavity side plate A56 andThe microwave cavity top at the microwave cavity end cap 17 of microwave cavity side plate B58, the left and right sides and microwave cavity charging end plate 57, topThe microwave cavity base plate of plate 5 and bottom, microwave cavity side plate A56 and microwave cavity side plate B58 are provided with thermometer hole 41, microwave feedbackMouth 27, microwave feedback mouth 27 is provided with magnetron 28 and waveguide 29, microwave cavity end cap 17 and the microwave cavity charging of collocation between twoOn end plate 57, be respectively equipped with air admission hole 18 and microwave cavity discharging end plate air admission hole 54, microwave cavity top board 5 is by gripper shoe A21Be connected with microwave cavity top board 5, microwave cavity top board 5 is provided with cooling fan and cooling fan fixing hole 20, at the bottom of microwave cavityOn plate, be provided with microwave cavity base plate discharging opening 55 by discharge nozzle fixed head 35, microwave cavity base plate discharging opening 55 is provided with tremie pipeFlange 36, microwave cavity base plate discharging opening 55 is connected with discharging stepper motor 38, and discharging stepper motor 38 is by discharging stepping electricityMachine fixed head 39 is fixed on microwave cavity bottom, microwave cavity also comprise fume pipe flange 4, fume pipe 37, feed pipe flange 8,Feed pipe 22, filament box 33, water inlet manifold 12 and always go out cooling water pipe, frame encapsulation top board one side is provided with fume pipe 37, entersMaterial pipe 22, fume pipe 37, feed pipe 22 tops are respectively equipped with fume pipe flange 4 and feed pipe flange 8, and fume pipe 37 is provided with cigaretteTracheae thermometer hole 34, filament box 33, water inlet manifold 12 are fixed on frame 2 inside, and adjacent at the bottom of microwave cavity side plate successivelyPortion's one side, water inlet manifold 12 is provided with and is divided into cooling water pipe 32, and the water pipe connection magnetron 28 being divided on cooling water pipe 32 enters waterMouthful, magnetron 28 delivery ports with always go out cooling water pipe and be connected, always go out cooling water pipe and be provided with always go out cooling water pipe flange 26 and be positioned atNear the microwave cavity side plate side of feed pipe 22 1 sides;
Described double helix agitating device comprises inner chamber body top board 46, the inner chamber body discharging end plate 50 of both sides, the front and back at topThe inner chamber body bottom support plate 51 of inner chamber body side plate 53, bottom inner chamber body base plate 52 and the bottom inner chamber body base plate 52 of side, inner chamberBody top board 46 tops are provided with microwave cavity top plate supporting bar 18, and inner chamber body top board 46 surfaces are provided with exhanst gas outlet and charging aperture, twoIn the middle of spiral agitator, insert shaft 1, double helix bar 47 is installed on shaft 1, shaft 1 end, one end connects discharge endBearing 14, discharge end bearing 14 is arranged on discharge end bearing block 15, and discharge end bearing 14 is provided with discharge end bearing air ring 16,Discharge end bearing air ring 16 is provided with single piece type ball valve 40, and it is cooling that shaft 1 other end end connects feed end bearing successivelyRing 44, feed end bearing 24, driven sprocket 23, feed end bearing 24 connects feed end bearing block 25, shaft 1 and planetary reduction gearMachine 42 connects.
Wherein shaft 1 is hollow form; Microwave cavity is ceramic wave-transmitting material; Double helix bar 47 and double helix agitating deviceThe inner chamber body of bottom is that distance is 3mm, the inside and outside double-spiral structure that double helix bar 47 hands of spiral are contrary.
As shown in Figure 9, this microwave double helix tubular type stove is combined the method for preparing manganeisen, its concrete steps with mineral hot furnaceAs follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 5 ~ 50mm, 1 ~ 10mm, then by fragmentationManganese ore, carbonaceous reducing agent be that 70:30 mixes and obtains mixed material, the wherein quality hundred of this manganese ore according to mass ratioProportion by subtraction composition is: Mn2O344.51%、CaCO324.54%、Fe3O47.43%; Carbonaceous reducing agent is coke;
Step 2, the mixed material that step 1 is obtained are that 200kg/h is transported to micro-by raw material conveyer belt 62 according to speedIn ripple double helix tubular type stove feed pipe 22, then in microwave double helix tubular type stove, be heated to 850 DEG C of preroast 40min and obtain temperatureDegree maintains the hot material without sintering, low-powder ratio of 821 DEG C, and this hot material is without moisture, carbonate decomposition rate and high priceMn oxide percent reduction reaches 81%;
Step 3, the hot material that step 2 is obtained are discharged from microwave double helix tubular type stove microwave cavity base plate discharging opening 55Enter into heat material storage warehouse 64, the hot material from heat material storage warehouse 64, step 2 being obtained is placed in mineral hot furnace 69, adds manganeseAfter the coke of ore quality 19%, temperature is heated to 1500 DEG C of melting 3.5h in mineral hot furnace and prepares manganeisen.
Embodiment 2
As shown in Fig. 1 to 8, this microwave double helix tubular type stove, comprises frame 2, microwave cavity and double helix agitating device threeIndividual part;
Described frame 2 encapsulates top board A3 by the frame of upper surface and frame encapsulates top board B7, all around the frame of side is sealedThe frame package floor composition of dress side plate A10, bottom surface, frame encapsulation side plate A10 surface is provided with pulling buckle 9, frame package floorBe provided with frame support pin 11;
Described microwave cavity is positioned at frame 2 upper inside, microwave cavity comprise before and after both sides microwave cavity side plate A56 andThe microwave cavity top at the microwave cavity end cap 17 of microwave cavity side plate B58, the left and right sides and microwave cavity charging end plate 57, topThe microwave cavity base plate of plate 5 and bottom, microwave cavity side plate A56 and microwave cavity side plate B58 are provided with thermometer hole 41, microwave feedbackMouth 27, microwave feedback mouth 27 is provided with magnetron 28 and waveguide 29, microwave cavity end cap 17 and the microwave cavity charging of collocation between twoOn end plate 57, be respectively equipped with air admission hole 18 and microwave cavity discharging end plate air admission hole 54, microwave cavity top board 5 is by gripper shoe A21Be connected with microwave cavity top board 5, microwave cavity top board 5 is provided with cooling fan and cooling fan fixing hole 20, at the bottom of microwave cavityOn plate, be provided with microwave cavity base plate discharging opening 55 by discharge nozzle fixed head 35, microwave cavity base plate discharging opening 55 is provided with tremie pipeFlange 36, microwave cavity base plate discharging opening 55 is connected with discharging stepper motor 38, and discharging stepper motor 38 is by discharging stepping electricityMachine fixed head 39 is fixed on microwave cavity bottom, microwave cavity also comprise fume pipe flange 4, fume pipe 37, feed pipe flange 8,Feed pipe 22, filament box 33, water inlet manifold 12 and always go out cooling water pipe, frame encapsulation top board one side is provided with fume pipe 37, entersMaterial pipe 22, fume pipe 37, feed pipe 22 tops are respectively equipped with fume pipe flange 4 and feed pipe flange 8, and fume pipe 37 is provided with cigaretteTracheae thermometer hole 34, filament box 33, water inlet manifold 12 are fixed on frame 2 inside, and adjacent at the bottom of microwave cavity side plate successivelyPortion's one side, water inlet manifold 12 is provided with and is divided into cooling water pipe 32, and the water pipe connection magnetron 28 being divided on cooling water pipe 32 enters waterMouthful, magnetron 28 delivery ports with always go out cooling water pipe and be connected, always go out cooling water pipe and be provided with always go out cooling water pipe flange 26 and be positioned atNear the microwave cavity side plate side of feed pipe 22 1 sides;
Described double helix agitating device comprises inner chamber body top board 46, the inner chamber body discharging end plate 50 of both sides, the front and back at topThe inner chamber body bottom support plate 51 of inner chamber body side plate 53, bottom inner chamber body base plate 52 and the bottom inner chamber body base plate 52 of side, inner chamberBody top board 46 tops are provided with microwave cavity top plate supporting bar 18, and inner chamber body top board 46 surfaces are provided with exhanst gas outlet and charging aperture, twoIn the middle of spiral agitator, insert shaft 1, double helix bar 47 is installed on shaft 1, shaft 1 end, one end connects discharge endBearing 14, discharge end bearing 14 is arranged on discharge end bearing block 15, and discharge end bearing 14 is provided with discharge end bearing air ring 16,Discharge end bearing air ring 16 is provided with single piece type ball valve 40, and it is cooling that shaft 1 other end end connects feed end bearing successivelyRing 44, feed end bearing 24, driven sprocket 23, feed end bearing 24 connects feed end bearing block 25, shaft 1 and planetary reduction gearMachine 42 connects.
Wherein shaft 1 is hollow form; Microwave cavity is ceramic wave-transmitting material; Double helix bar 47 and double helix agitating deviceThe inner chamber body of bottom is that distance is 3mm, the inside and outside double-spiral structure that double helix bar 47 hands of spiral are contrary.
As shown in Figure 9, this microwave double helix tubular type stove is combined the method for preparing manganeisen, its concrete steps with mineral hot furnaceAs follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 5 ~ 80mm, 1 ~ 20mm, then by fragmentationManganese ore, carbonaceous reducing agent be that 72:28 mixes and obtains mixed material according to mass ratio; The wherein quality hundred of this manganese oreProportion by subtraction composition is: Mn2O336.32%、CaCO325.0%、Fe3O45.43%; Carbonaceous reducing agent is petroleum coke;
Step 2, the mixed material that step 1 is obtained are that 200kg/h is transported to micro-by raw material conveyer belt 62 according to speedIn ripple double helix tubular type stove feed pipe 22, then in microwave double helix tubular type stove, be heated to 900 DEG C of preroast 25min and obtain temperatureDegree maintains the hot material without sintering, low-powder ratio of 862 DEG C, and this hot material is without moisture, carbonate decomposition rate and high priceMn oxide percent reduction reaches 87%;
Step 3, the hot material that step 2 is obtained are discharged from microwave double helix tubular type stove microwave cavity base plate discharging opening 55Enter into heat material storage warehouse 64, the hot material from heat material storage warehouse 64, step 2 being obtained is placed in mineral hot furnace 69, adds manganeseAfter the coke of ore quality 19%, temperature is heated to 1450 DEG C of melting 4h in mineral hot furnace and prepares manganeisen.
Embodiment 3
As shown in Fig. 1 to 8, this microwave double helix tubular type stove, comprises frame 2, microwave cavity and double helix agitating device threeIndividual part;
Described frame 2 encapsulates top board A3 by the frame of upper surface and frame encapsulates top board B7, all around the frame of side is sealedThe frame package floor composition of dress side plate A10, bottom surface, frame encapsulation side plate A10 surface is provided with pulling buckle 9, frame package floorBe provided with frame support pin 11;
Described microwave cavity is positioned at frame 2 upper inside, microwave cavity comprise before and after both sides microwave cavity side plate A56 andThe microwave cavity top at the microwave cavity end cap 17 of microwave cavity side plate B58, the left and right sides and microwave cavity charging end plate 57, topThe microwave cavity base plate of plate 5 and bottom, microwave cavity side plate A56 and microwave cavity side plate B58 are provided with thermometer hole 41, microwave feedbackMouth 27, microwave feedback mouth 27 is provided with magnetron 28 and waveguide 29, microwave cavity end cap 17 and the microwave cavity charging of collocation between twoOn end plate 57, be respectively equipped with air admission hole 18 and microwave cavity discharging end plate air admission hole 54, microwave cavity top board 5 is by gripper shoe A21Be connected with microwave cavity top board 5, microwave cavity top board 5 is provided with cooling fan and cooling fan fixing hole 20, at the bottom of microwave cavityOn plate, be provided with microwave cavity base plate discharging opening 55 by discharge nozzle fixed head 35, microwave cavity base plate discharging opening 55 is provided with tremie pipeFlange 36, microwave cavity base plate discharging opening 55 is connected with discharging stepper motor 38, and discharging stepper motor 38 is by discharging stepping electricityMachine fixed head 39 is fixed on microwave cavity bottom, microwave cavity also comprise fume pipe flange 4, fume pipe 37, feed pipe flange 8,Feed pipe 22, filament box 33, water inlet manifold 12 and always go out cooling water pipe, frame encapsulation top board one side is provided with fume pipe 37, entersMaterial pipe 22, fume pipe 37, feed pipe 22 tops are respectively equipped with fume pipe flange 4 and feed pipe flange 8, and fume pipe 37 is provided with cigaretteTracheae thermometer hole 34, filament box 33, water inlet manifold 12 are fixed on frame 2 inside, and adjacent at the bottom of microwave cavity side plate successivelyPortion's one side, water inlet manifold 12 is provided with and is divided into cooling water pipe 32, and the water pipe connection magnetron 28 being divided on cooling water pipe 32 enters waterMouthful, magnetron 28 delivery ports with always go out cooling water pipe and be connected, always go out cooling water pipe and be provided with always go out cooling water pipe flange 26 and be positioned atNear the microwave cavity side plate side of feed pipe 22 1 sides;
Described double helix agitating device comprises inner chamber body top board 46, the inner chamber body discharging end plate 50 of both sides, the front and back at topThe inner chamber body bottom support plate 51 of inner chamber body side plate 53, bottom inner chamber body base plate 52 and the bottom inner chamber body base plate 52 of side, inner chamberBody top board 46 tops are provided with microwave cavity top plate supporting bar 18, and inner chamber body top board 46 surfaces are provided with exhanst gas outlet and charging aperture, twoIn the middle of spiral agitator, insert shaft 1, double helix bar 47 is installed on shaft 1, shaft 1 end, one end connects discharge endBearing 14, discharge end bearing 14 is arranged on discharge end bearing block 15, and discharge end bearing 14 is provided with discharge end bearing air ring 16,Discharge end bearing air ring 16 is provided with single piece type ball valve 40, and it is cooling that shaft 1 other end end connects feed end bearing successivelyRing 44, feed end bearing 24, driven sprocket 23, feed end bearing 24 connects feed end bearing block 25, shaft 1 and planetary reduction gearMachine 42 connects.
Wherein shaft 1 is hollow form; Microwave cavity is ceramic wave-transmitting material; Double helix bar 47 and double helix agitating deviceThe inner chamber body of bottom is that distance is 3mm, the inside and outside double-spiral structure that double helix bar 47 hands of spiral are contrary.
As shown in Figure 9, this microwave double helix tubular type stove is combined the method for preparing manganeisen, its concrete steps with mineral hot furnaceAs follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 5 ~ 80mm, 1 ~ 30mm, then by fragmentationManganese ore, carbonaceous reducing agent be that 67:33 mixes and obtains mixed material according to mass ratio; The wherein quality hundred of this manganese oreProportion by subtraction composition is: Mn2O346.37%、CaCO321.54%、Fe3O47.17%; Carbonaceous reducing agent is coal;
Step 2, the mixed material that step 1 is obtained are that 200kg/h is transported to micro-by raw material conveyer belt 62 according to speedIn ripple double helix tubular type stove feed pipe 22, then in microwave double helix tubular type stove, be heated to 770 DEG C of preroast 50min and obtain temperatureDegree maintains the hot material without sintering, low-powder ratio of 740 DEG C, and this hot material is without moisture, carbonate decomposition rate and high priceMn oxide percent reduction reaches 71.5%;
Step 3, the hot material that step 2 is obtained are discharged from microwave double helix tubular type stove microwave cavity base plate discharging opening 55Enter into heat material storage warehouse 64, the hot material from heat material storage warehouse 64, step 2 being obtained is placed in mineral hot furnace 69, adds manganeseAfter the coke of ore quality 19%, temperature is heated to 1500 DEG C of melting 3.5h in mineral hot furnace and prepares manganeisen.
Embodiment 4
As shown in Fig. 1 to 8, this microwave double helix tubular type stove, comprises frame 2, microwave cavity and double helix agitating device threeIndividual part;
Described frame 2 encapsulates top board A3 by the frame of upper surface and frame encapsulates top board B7, all around the frame of side is sealedThe frame package floor composition of dress side plate A10, bottom surface, frame encapsulation side plate A10 surface is provided with pulling buckle 9, frame package floorBe provided with frame support pin 11;
Described microwave cavity is positioned at frame 2 upper inside, microwave cavity comprise before and after both sides microwave cavity side plate A56 andThe microwave cavity top at the microwave cavity end cap 17 of microwave cavity side plate B58, the left and right sides and microwave cavity charging end plate 57, topThe microwave cavity base plate of plate 5 and bottom, microwave cavity side plate A56 and microwave cavity side plate B58 are provided with thermometer hole 41, microwave feedbackMouth 27, microwave feedback mouth 27 is provided with magnetron 28 and waveguide 29, microwave cavity end cap 17 and the microwave cavity charging of collocation between twoOn end plate 57, be respectively equipped with air admission hole 18 and microwave cavity discharging end plate air admission hole 54, microwave cavity top board 5 is by gripper shoe A21Be connected with microwave cavity top board 5, microwave cavity top board 5 is provided with cooling fan and cooling fan fixing hole 20, at the bottom of microwave cavityOn plate, be provided with microwave cavity base plate discharging opening 55 by discharge nozzle fixed head 35, microwave cavity base plate discharging opening 55 is provided with tremie pipeFlange 36, microwave cavity base plate discharging opening 55 is connected with discharging stepper motor 38, and discharging stepper motor 38 is by discharging stepping electricityMachine fixed head 39 is fixed on microwave cavity bottom, microwave cavity also comprise fume pipe flange 4, fume pipe 37, feed pipe flange 8,Feed pipe 22, filament box 33, water inlet manifold 12 and always go out cooling water pipe, frame encapsulation top board one side is provided with fume pipe 37, entersMaterial pipe 22, fume pipe 37, feed pipe 22 tops are respectively equipped with fume pipe flange 4 and feed pipe flange 8, and fume pipe 37 is provided with cigaretteTracheae thermometer hole 34, filament box 33, water inlet manifold 12 are fixed on frame 2 inside, and adjacent at the bottom of microwave cavity side plate successivelyPortion's one side, water inlet manifold 12 is provided with and is divided into cooling water pipe 32, and the water pipe connection magnetron 28 being divided on cooling water pipe 32 enters waterMouthful, magnetron 28 delivery ports with always go out cooling water pipe and be connected, always go out cooling water pipe and be provided with always go out cooling water pipe flange 26 and be positioned atNear the microwave cavity side plate side of feed pipe 22 1 sides;
Described double helix agitating device comprises inner chamber body top board 46, the inner chamber body discharging end plate 50 of both sides, the front and back at topThe inner chamber body bottom support plate 51 of inner chamber body side plate 53, bottom inner chamber body base plate 52 and the bottom inner chamber body base plate 52 of side, inner chamberBody top board 46 tops are provided with microwave cavity top plate supporting bar 18, and inner chamber body top board 46 surfaces are provided with exhanst gas outlet and charging aperture, twoIn the middle of spiral agitator, insert shaft 1, double helix bar 47 is installed on shaft 1, shaft 1 end, one end connects discharge endBearing 14, discharge end bearing 14 is arranged on discharge end bearing block 15, and discharge end bearing 14 is provided with discharge end bearing air ring 16,Discharge end bearing air ring 16 is provided with single piece type ball valve 40, and it is cooling that shaft 1 other end end connects feed end bearing successivelyRing 44, feed end bearing 24, driven sprocket 23, feed end bearing 24 connects feed end bearing block 25, shaft 1 and planetary reduction gearMachine 42 connects.
Wherein shaft 1 is hollow form; Microwave cavity is ceramic wave-transmitting material; Double helix bar 47 and double helix agitating deviceThe inner chamber body of bottom is that distance is 3mm, the inside and outside double-spiral structure that double helix bar 47 hands of spiral are contrary.
As shown in Figure 9, this microwave double helix tubular type stove is combined the method for preparing manganeisen, its concrete steps with mineral hot furnaceAs follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 5 ~ 20mm, 10 ~ 30mm, then will breakBroken manganese ore, carbonaceous reducing agent are that 65:35 mixes and obtains mixed material according to mass ratio; The wherein quality of this manganese orePercentage composition is: Mn2O335.31%、CaCO35.4%、Fe3O49.8%; Carbonaceous reducing agent is charcoal;
Step 2, the mixed material that step 1 is obtained are that 200kg/h is transported to micro-by raw material conveyer belt 62 according to speedIn ripple double helix tubular type stove feed pipe 22, then in microwave double helix tubular type stove, be heated to 750 DEG C of preroast 45min and obtain temperatureDegree maintains the hot material without sintering, low-powder ratio of 718 DEG C, and this hot material is without moisture, carbonate decomposition rate and high priceMn oxide percent reduction reaches 73%;
Step 3, the hot material that step 2 is obtained are discharged from microwave double helix tubular type stove microwave cavity base plate discharging opening 55Enter into heat material storage warehouse 64, the hot material from heat material storage warehouse 64, step 2 being obtained is placed in mineral hot furnace 69, adds manganeseAfter the coke of ore quality 19%, temperature is heated to 1480 DEG C of melting 4.5h in mineral hot furnace and prepares manganeisen.
Embodiment 5
As shown in Fig. 1 to 8, this microwave double helix tubular type stove, comprises frame 2, microwave cavity and double helix agitating device threeIndividual part;
Described frame 2 encapsulates top board A3 by the frame of upper surface and frame encapsulates top board B7, all around the frame of side is sealedThe frame package floor composition of dress side plate A10, bottom surface, frame encapsulation side plate A10 surface is provided with pulling buckle 9, frame package floorBe provided with frame support pin 11;
Described microwave cavity is positioned at frame 2 upper inside, microwave cavity comprise before and after both sides microwave cavity side plate A56 andThe microwave cavity top at the microwave cavity end cap 17 of microwave cavity side plate B58, the left and right sides and microwave cavity charging end plate 57, topThe microwave cavity base plate of plate 5 and bottom, microwave cavity side plate A56 and microwave cavity side plate B58 are provided with thermometer hole 41, microwave feedbackMouth 27, microwave feedback mouth 27 is provided with magnetron 28 and waveguide 29, microwave cavity end cap 17 and the microwave cavity charging of collocation between twoOn end plate 57, be respectively equipped with air admission hole 18 and microwave cavity discharging end plate air admission hole 54, microwave cavity top board 5 is by gripper shoe A21Be connected with microwave cavity top board 5, microwave cavity top board 5 is provided with cooling fan and cooling fan fixing hole 20, at the bottom of microwave cavityOn plate, be provided with microwave cavity base plate discharging opening 55 by discharge nozzle fixed head 35, microwave cavity base plate discharging opening 55 is provided with tremie pipeFlange 36, microwave cavity base plate discharging opening 55 is connected with discharging stepper motor 38, and discharging stepper motor 38 is by discharging stepping electricityMachine fixed head 39 is fixed on microwave cavity bottom, microwave cavity also comprise fume pipe flange 4, fume pipe 37, feed pipe flange 8,Feed pipe 22, filament box 33, water inlet manifold 12 and always go out cooling water pipe, frame encapsulation top board one side is provided with fume pipe 37, entersMaterial pipe 22, fume pipe 37, feed pipe 22 tops are respectively equipped with fume pipe flange 4 and feed pipe flange 8, and fume pipe 37 is provided with cigaretteTracheae thermometer hole 34, filament box 33, water inlet manifold 12 are fixed on frame 2 inside, and adjacent at the bottom of microwave cavity side plate successivelyPortion's one side, water inlet manifold 12 is provided with and is divided into cooling water pipe 32, and the water pipe connection magnetron 28 being divided on cooling water pipe 32 enters waterMouthful, magnetron 28 delivery ports with always go out cooling water pipe and be connected, always go out cooling water pipe and be provided with always go out cooling water pipe flange 26 and be positioned atNear the microwave cavity side plate side of feed pipe 22 1 sides;
Described double helix agitating device comprises inner chamber body top board 46, the inner chamber body discharging end plate 50 of both sides, the front and back at topThe inner chamber body bottom support plate 51 of inner chamber body side plate 53, bottom inner chamber body base plate 52 and the bottom inner chamber body base plate 52 of side, inner chamberBody top board 46 tops are provided with microwave cavity top plate supporting bar 18, and inner chamber body top board 46 surfaces are provided with exhanst gas outlet and charging aperture, twoIn the middle of spiral agitator, insert shaft 1, double helix bar 47 is installed on shaft 1, shaft 1 end, one end connects discharge endBearing 14, discharge end bearing 14 is arranged on discharge end bearing block 15, and discharge end bearing 14 is provided with discharge end bearing air ring 16,Discharge end bearing air ring 16 is provided with single piece type ball valve 40, and it is cooling that shaft 1 other end end connects feed end bearing successivelyRing 44, feed end bearing 24, driven sprocket 23, feed end bearing 24 connects feed end bearing block 25, shaft 1 and planetary reduction gearMachine 42 connects.
Wherein shaft 1 is hollow form; Microwave cavity is ceramic wave-transmitting material; Double helix bar 47 and double helix agitating deviceThe inner chamber body of bottom is that distance is 3mm, the inside and outside double-spiral structure that double helix bar 47 hands of spiral are contrary.
As shown in Figure 9, this microwave double helix tubular type stove is combined the method for preparing manganeisen, its concrete steps with mineral hot furnaceAs follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 20 ~ 60mm, 20 ~ 30mm, then will breakBroken manganese ore, carbonaceous reducing agent are that 80:20 mixes and obtains mixed material according to mass ratio; The wherein quality of this manganese orePercentage composition is: Mn2O354.48%、CaCO324.88%、Fe3O45.2%; Carbonaceous reducing agent is charcoal;
Step 2, the mixed material that step 1 is obtained are that 200kg/h is transported to micro-by raw material conveyer belt 62 according to speedIn ripple double helix tubular type stove feed pipe 22, then in microwave double helix tubular type stove, be heated to 950 DEG C of preroast 20min and obtain temperatureDegree maintains the hot material without sintering, low-powder ratio of 906 DEG C, and this hot material is without moisture, carbonate decomposition rate and high priceMn oxide percent reduction reaches 85.7%;
Step 3, the hot material that step 2 is obtained are discharged from microwave double helix tubular type stove microwave cavity base plate discharging opening 55Enter into heat material storage warehouse 64, the hot material from heat material storage warehouse 64, step 2 being obtained is placed in mineral hot furnace 69, adds manganeseAfter the coke of ore quality 19%, temperature is heated to 1550 DEG C of melting 3h in mineral hot furnace and prepares manganeisen.
By reference to the accompanying drawings the specific embodiment of the present invention is explained in detail above, above-mentioned but the present invention is not limited toEmbodiment, in the ken possessing those of ordinary skill in the art, can also do not depart from aim of the present invention beforePut and make various variations.

Claims (7)

1. a microwave double helix tubular type stove, is characterized in that: comprise frame (2), microwave cavity and double helix agitating device threeIndividual part;
Described frame (2) is by the frame encapsulation top board A(3 of upper surface) and frame encapsulate top board B(7), the frame of side all aroundEncapsulation side plate A(10), the frame package floor composition of bottom surface, frame encapsulation side plate A(10) surface is provided with pulling buckle (9), framePackage floor is provided with frame support pin (11);
Described microwave cavity is positioned at frame (2) upper inside, the microwave cavity side plate A(56 of both sides before and after microwave cavity comprises) andMicrowave cavity side plate B(58), the microwave at the microwave cavity end cap (17) of the left and right sides and microwave cavity charging end plate (57), topThe microwave cavity base plate of cavity top board (5) and bottom, microwave cavity side plate A(56) and microwave cavity side plate B(58) survey be provided withTemperature hole (41), microwave feedback mouthful (27), microwave feedback mouthful (27) is provided with magnetron (28) and the waveguide (29) of collocation between two, microwave cavityOn body end cap (17) and microwave cavity charging end plate (57), be respectively equipped with air admission hole (18) and microwave cavity discharging end plate air admission hole(54), microwave cavity top board (5) is by gripper shoe A(21) be connected with microwave cavity top board (5), microwave cavity top board is established on (5)There are cooling fan and cooling fan fixing hole (20), on microwave cavity base plate, are provided with microwave cavity by discharge nozzle fixed head (35)Base plate discharging opening (55), microwave cavity base plate discharging opening (55) is provided with tremie pipe flange (36), microwave cavity base plate discharging opening(55) be connected with discharging stepper motor (38), discharging stepper motor (38) is fixed on micro-by discharging stepper motor fixed head (39)Ripple cavity bottom, microwave cavity also comprises fume pipe flange (4), fume pipe (37), feed pipe flange (8), feed pipe (22), lampSilk box (33), water inlet manifold (12) and always go out cooling water pipe, frame encapsulates top board one side and is provided with fume pipe (37), feed pipe(22), fume pipe (37), feed pipe (22) top are respectively equipped with fume pipe flange (4) and feed pipe flange (8), fume pipe (37)Be provided with fume pipe thermometer hole (34), filament box (33), water inlet manifold (12) are fixed on frame (2) inside, and adjacent successivelyIn microwave cavity side plate bottom one side, water inlet manifold (12) is provided with and is divided into cooling water pipe (32), is divided on cooling water pipe (32)Water pipe connect magnetron (28) water inlet, magnetron (28) delivery port with always go out cooling water pipe and be connected, always go out cooling water pipe and establishHave and always go out cooling water pipe flange (26) and be positioned at the microwave cavity side plate side near feed pipe (22) one sides;
Described double helix agitating device comprises inner chamber body top board (46), the inner chamber body discharging end plate (50) of both sides, the front and back at topThe inner chamber body bottom support plate of inner chamber body side plate (53), bottom inner chamber body base plate (52) and the bottom inner chamber body base plate (52) of side(51), inner chamber body top board (46) top is provided with microwave cavity top plate supporting bar (18), and inner chamber body top board (46) surface is provided with flue gasOutlet and charging aperture, insert shaft (1) in the middle of double helix agitating device, the upper double helix bar (47) of installing of shaft (1), stirsAxle (1) end, one end connects discharge end bearing (14), and discharge end bearing (14) is arranged on discharge end bearing block (15), discharge end axleHold (14) and be provided with discharge end bearing air ring (16), discharge end bearing air ring (16) is provided with single piece type ball valve (40), stirsMix axle (1) other end end and connect successively feed end bearing air ring (44), feed end bearing (24), driven sprocket (23), enterMaterial end bearing (24) connects feed end bearing block (25), and shaft (1) is connected with planetary reducer (42).
2. microwave double helix tubular type stove according to claim 1, is characterized in that: described shaft (1) is hollow form.
3. microwave double helix tubular type stove according to claim 1, is characterized in that: described microwave cavity is ceramic penetrating wave materialMaterial.
4. microwave double helix tubular type stove according to claim 1, is characterized in that: described double helix bar (47) and double helixThe inner chamber body of agitating device bottom is that distance is 3mm, the inside and outside double-spiral structure that double helix bar (47) hand of spiral is contrary.
5. a utilization is combined with mineral hot furnace and is prepared ferromanganese and close as the microwave double helix tubular type stove of claim 1 to 4 as described in arbitrarilyThe method of gold, is characterized in that concrete steps are as follows:
Step 1, first manganese ore, carbonaceous reducing agent to be crushed to respectively to granularity be 5 ~ 80mm, 1 ~ 30mm, then by broken manganeseOre, carbonaceous reducing agent are (65 ~ 80) according to mass ratio: (35 ~ 20) mix and obtain mixed material;
Step 2, the mixed material that step 1 is obtained are transported to microwave double helix tubular type stove feed pipe by raw material conveyer belt (62)(22), in, then in microwave double helix tubular type stove, be heated to 750 ~ 950 DEG C of preroast 20 ~ 50min acquisition temperature and maintain 700The hot material without sintering, low-powder ratio of ~ 950 DEG C;
Step 3, hot material that step 2 is obtained from microwave double helix tubular type stove microwave cavity base plate discharging opening (55) discharge intoEnter to heat material storage warehouse (64), the hot material from heat material storage warehouse (64), step 2 being obtained is placed in mineral hot furnace (69), addsAdd and temperature is heated to 1450 ~ 1550 DEG C of melting 3 ~ 4.5h in mineral hot furnace after coke and prepares manganeisen.
6. the microwave double helix tubular type stove that utilizes according to claim 5 is combined the method for preparing manganeisen with mineral hot furnace,It is characterized in that: the manganese ore in described step 1 is that mass percent composition is: MnxOy35~55%,FexOy5~10%,CaCO35~25%。
7. the microwave double helix tubular type stove that utilizes according to claim 6 is combined the method for preparing manganeisen with mineral hot furnace,It is characterized in that: in described step 1, carbonaceous reducing agent is petroleum coke, coke, coal or charcoal.
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