CN206839178U - It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace - Google Patents
It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace Download PDFInfo
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- CN206839178U CN206839178U CN201720635550.XU CN201720635550U CN206839178U CN 206839178 U CN206839178 U CN 206839178U CN 201720635550 U CN201720635550 U CN 201720635550U CN 206839178 U CN206839178 U CN 206839178U
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Abstract
It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace, it is related to a kind of reduction furnace, by improving furnace tube structure, arrival WO2 product gradings are controllable, quality controllable, output increased, and save a large amount of hydrogen and electricity.Including body of heater, boiler tube, boiler tube is arranged in frame through body of heater, it is characterised in that：Boiler tube sets gas passage and material and reaction gas reduction passage after reaction, wherein, reduction passage is provided with slide rail and pushes away boat movement for material；Provided with gas inlet after reaction and with reducing passage UNICOM among gas passage in boiler tube, gas passage gas outlet is located at boiler tube head；Boiler tube material reduction passage is divided into anterior suitable hydrogen reduction passage and rear portion against hydrogen reduction passage at gas passage air inlet, boiler tube is that boiler tube head is provided with hydrogen inlet along hydrogen reduction passage, and material inlet, boiler tube includes rear boiler tube, discharging boiler tube against hydrogen reduction passage, boiler tube one end is communicated with gas outlet in upper furnace afterwards, and the rear boiler tube other end is connected with discharging boiler tube；Discharging boiler tube end is provided with cold hydrogen air inlet.
Description
Technical field
A kind of reduction furnace is the utility model is related to, more particularly, to structure a kind of while along inverse hydrogen state multitube reduction furnace
Improvement.
Background technology
The thickness of tungsten powder particle-size depends on WO2, facts have proved thin WO2Thin tungsten powder, thick WO are obtained after carrying out reduction2Through
Thick tungsten powder is obtained after reduction, influences WO2The most obvious factor of granularity is the water vapour content in reduction process, WO2Granularity is with temperature
Degree raises and thickening, and its reason is to improve reduction temperature to add reduction rate, is steamed so as to add water caused by reduction reaction
Tolerance, hydrogen humidity is correspondingly increased, its effect is thickening WO2Granularity, in practice it has proved that water content is bigger, and reaction speed is slower,
The WO2 of generation granularity is also thicker, on the contrary then WO2 granularity is thinner.
At present, there are three kinds using hydrogen reducing WO3, the hydrogen supplying method of use, first, the direction of hydrogen flowing and reduzate
Direction of advance is consistent, is referred to as along hydrogen reduction, second, the direction of hydrogen flowing and reduzate direction of advance are on the contrary, be referred to as inverse hydrogen also
Original, third, along hydrogen reduction and the two-way adjustable reduction furnace of inverse hydrogen reduction blocked operation in same multitube boiler tube.Single suitable hydrogen is also
Former or single inverse hydrogen reduction all respectively has advantage and disadvantage, such as fast along hydrogen reduction speed, improves yield, granularmetric composition narrow distribution range and
Uniformly, yield can improve more than 30% under identical process conditions.Shortcoming is to enter heating region consumed energy for cold hydrogen-cooled material
Greatly, hydrogen and the equidirectional discharge of tungsten powder after reacted, tungsten powder cooling difficulty, increase plus moisture in hydrogen, oxygen-containing in tungsten powder
Two is unmanageable；Inverse hydrogen reduction hydrogen cools down after entering boiler tube to product, and hydrogen temperature rise, dry hydrogen is advantageous to produce
Product Control for Oxygen Content, discharge hydrogen can preheat to the WO3 for entering boiler tube.Shortcoming be initially enter the WO3 of heating zone just with
The larger hydrogen contact of water content, reaction speed are slack-off after reaction；WO2Granularity thickening；Obtain thin WO2Hydrogen circulation need to be increased
Amount, more than 30 times of theoretical hydrogen consumption is even higher by sometimes, it is more that hydrogen consumption takes away greatly energy, WO2Particle size distribution is big, uneven
It is even；And it can not all be realized to the preferable control of product granularity along hydrogen reduction furnace and inverse hydrogen reduction furnace；It is and existing bilaterally adjustable
Although reduction furnace realizes suitable hydrogen reduction and inverse hydrogen reduction reaction in same stove, but simply simply along hydrogen reduction and against hydrogen also
Original reacts work of staggering the time, and the realization without real meaning improves product quality and saves energy consumption, realizes that granularity is controllable；It is furthermore existing
Main hydrogen need to be closed during old stove input and output material, opens security personnel's hydrogen, vapor caused by reaction is rested in boiler tube can not be in time by hydrogen
Gas is taken away, and causes moisture in system to sharply increase reachable more than 4 times, slowed down reaction speed, while also causes furnace pressure to disappear,
Make, containing large quantity of moisture gas backflow to the product reduced, to make product surface reoxidized.Develop with technology, people need
One kind can have inverse hydrogen reduction and suitable hydrogen reduction advantage, overcome the advanced multi-tube furnace of both defects again.
The content of the invention
The utility model purpose is：A kind of use simultaneously along inverse supply hydrogen multi-tube furnace, by furnace tube structure is provided
Improve, realize in tungsten powder production while for along inverse hydrogen reactive mode, arrival WO2 product gradings are controllable, quality controllable, and yield carries
Height, and save a large amount of hydrogen and electricity.
Technical solutions of the utility model are：It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace, including body of heater, boiler tube,
Boiler tube is arranged in frame through body of heater, it is characterised in that：Boiler tube sets gas passage and material reduction passage after reaction, passage tool
There is maintenance furnace tube temperature, reduce the effect of energy consumption, wherein, material reduction passage is provided with slide rail and pushes away boat movement for material, favorably
In the circulation of reacting gas, the intensity of boiler tube is added；Be provided with boiler tube among gas passage after reaction gas inlet and with
Passage UNICOM is reduced, gas passage gas outlet is located at boiler tube head；Boiler tube material is reduced into passage at gas passage air inlet
It is divided into anterior suitable hydrogen reduction passage and rear portion against hydrogen reduction passage, boiler tube is that boiler tube head is entered provided with hydrogen along hydrogen reduction passage
Mouthful, and material inlet, boiler tube includes rear boiler tube against hydrogen reduction passage, discharge boiler tube, rear boiler tube one end and outlet in upper furnace
Mouth is communicated, and the rear boiler tube other end is connected with discharging boiler tube；Discharging boiler tube end is provided with cold hydrogen air inlet.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：The gas passage is set
On boiler tube top, the material reduction passage is arranged on boiler tube bottom.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：Connect before suitable hydrogen reduction passage
Transitional storehouse is fed, charging transitional storehouse is provided with door in charging and feeds outer door, along hydrogen reduction passage by door in charging with entering
Communicated between material transitional storehouse, charging transitional storehouse communicates through feeding outer door with the material defeated boat machine of boat.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：Also include heat exchanger, stove
Tube head gas passage gas outlet is connected provided with blast pipe with heat exchanger, the hot gas outlet connection boiler tube head air inlet of heat exchanger
Mouthful, the cold gas outlet of heat exchanger connects back to hydrogen processor or hydrogen discharge gas bag, heat exchanger are also set along hydrogen air inlet.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：Heat exchanger runs through body of heater.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：The boiler tube tail end connection
Discharged boiler tube, and roller rail is provided with discharging boiler tube, and frictional force between boat and boiler tube is pushed away to reduce.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：The boiler tube front support
It is wholy set on an automatic telescopic platform, the boiler tube rear end support is wholy set on rear automatic telescopic platform.
It is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace, it is characterized in that：The boiler tube be pipe or
Square tube.
Material loads material boat through expecting that the defeated boat machine of boat is sent into charging transitional storehouse during use, closes and feeds outer door, opens charging
Interior door, by delivery device will expect boat push-in boiler tube, close charging in door, material with along hydrogen boiler tube occur reduction reaction,
On the other hand cold hydrogen preheats through cold hydrogen import into heat exchanger, and hydrogen enters boiler tube by boiler tube front end airflow mouth after preheating,
React, advance under pusher effect along boiler tube terminad, surplus hydrogen enters through gas passage after reaction with pushing away material in boat
Gas port enters gas passage in boiler tube, enters heat exchanger by gas passage gas outlet；Reduction reaction material moves in pusher to be made
With lower inverse hydrogen reduction portion is moved back into along boiler tube；Reverse hydrogen is entered by discharge nozzle afterbody, along rear boiler tube and reverse flow
Material meets, hydrogen portion reducing material, and this is inverse hydrogen conversion zone, and gas is through gas passage air inlet stream after remainder reaction
Enter in boiler tube gas passage, enter through escape pipe in heat exchanger example pipe and heat exchange occurs with hydrogen outside example pipe, realize cold hydrogen
Heating, Btu utilization is improved, is reused after entering back hydrogen purification after gas outflow heat exchanger after reaction.
The utility model beneficial effect is：It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace, both with single suitable hydrogen
Reduction and single inverse hydrogen reduction advantage, it is fast along hydrogen reduction speed, yield is improved, inverse hydrogen reduction hydrogen enters after boiler tube to product
Cooled down, hydrogen temperature rise, dry hydrogen is advantageous to oxygen content control, and discharge hydrogen can enter to the WO3 for entering boiler tube
Row preheating.Overcome again along hydrogen reduction shortcoming：Cold hydrogen-cooled material enter heating region consumed energy it is big, it is reacted after hydrogen and tungsten powder
Equidirectional discharge, tungsten powder cooling difficulty, increase plus moisture in hydrogen, oxygen-containing two is unmanageable in tungsten powder；Also overcome inverse hydrogen
React shortcoming：The WO3 for initially entering heating zone just contacts with the larger hydrogen of water content, and reaction speed is slow；Hydrogen consumption is taken away greatly
Energy is more, and particle size distribution is big, uneven.Overall saving hydrogen more than 1/3 is realized, by being precisely controlled water content in hydrogen
It can obtain WO2 coarse grain, or particulate.And specific manifestation is as follows：
1. under identical process conditions, using along inverse hydrogen mode technique, more than 30% can be improved simultaneously, hydrogen circulation is reduced
Amount more than 30%.
2. thick tungsten powder is obtained, it is pleasant to be passed through appropriate wet hydrogen or vapor, make WO2It is faster long thick
3. boiler tube directly opens fire door input and output material before being overcome using transition feeding warehouse, a large amount of hydrogen gas leakages, save
The energy, while avoid air from entering and explosion phenomenon occurs in stove, ensure that safety in production.
4. boiler tube internal channel compensate for cold hydrogen-cooled along hydrogen reduction using the heat hydrogen and material of gas after reaction
The defects of material enters boiler tube.
5. Bilayer oven door acts on, make hydrogen flowing quantity stabilization in stove, moisture is constant, and furnace pressure is constant, even if in stove
Hydrogen Vapor Pressure, temperature, stability of flow, realize product quality improve and stably.
6th, the use of heat exchanger realizes hydrogen UTILIZATION OF VESIDUAL HEAT IN after reaction, reduces cold hydrogen heat energy needs, answer subtracts
Few energy expenditure.
The utility model is further illustrated below in conjunction with drawings and Examples.
Brief description of the drawings
Fig. 1 is the utility model of the whole structure diagram
Fig. 2 is the defeated boat machine right view of the utility model material boat
Fig. 3 is the utility model round kiln tube section structure enlargement diagram
Fig. 4 is the utility model block furnace tube section structure enlargement diagram
In figure：Machine automatization push away boat 1, the defeated boat machine 2 of material boat, the outer door 3 of charging, charging transitional storehouse 4, feed in door 5, enter
Expect boiler tube 6, furnace tubing 7, resistance wire 8, body of heater 9, roller rail 10, discharging boiler tube 11, discharging in fire door 12, hook boat device 13, mistake
Cross discharging bin 14, loose-leaf gear door 15, the outer fire door 16 of discharging, rolling discharge pedestal 17, inverse hydrogen air inlet 18, suitable hydrogen air inlet 19, hydrogen
Gas outlet 21, heat exchanger 22, reductor 23, material boat 24, gas passage 25, material reduction passage in gas discharge gas bag 20, stove
26th, slide rail 27, support 28, boiler tube 29.
Embodiment
In figure：It is a kind of to be arranged on simultaneously using along inverse supply hydrogen multi-tube furnace, including body of heater 9, boiler tube, boiler tube through body of heater
In frame, boiler tube includes charging boiler tube 6, furnace tubing 7, and boiler tube sets gas passage 25 and material reduction passage 26, wherein, material
Slide rail 27 is provided with reduction passage 26 and pushes away boat movement, reducing friction resistance for material；The middle part of gas passage 25 is provided with boiler tube
Gas passage air inlet is gas outlet 21 and material reduction passage UNICOM in stove, and gas passage gas outlet is set and furnace tubing 7
Portion；Gas passage air inlet be in stove at gas outlet 21 by boiler tube material reduce logical 26 be divided into it is anterior along hydrogen reduction passage and
Against hydrogen reduction passage, boiler tube is that boiler tube head is provided with hydrogen inlet, and material inlet, boiler tube along hydrogen reduction passage head at rear portion
Inverse hydrogen reduction passage includes rear boiler tube, discharging boiler tube 11, and rear boiler tube one end is communicated with gas outlet in stove 21, and rear boiler tube another end is set
It is connected with discharging boiler tube 11；Discharging boiler tube 11 end is provided with inverse hydrogen air inlet 18.Expect transitional storehouse 4 along being repeatedly kicked into before hydrogen reduction passage,
Feed transitional storehouse 4 to be provided with door 5 in charging and feed outer door 3, along hydrogen reduction passage by door in charging 5 and charging transitional storehouse
Communicated between 4, charging transitional storehouse 4 communicates through feeding outer door 3 with the material defeated boat machine 2 of boat.Heat exchanger 22, boiler tube Head gas passage
Gas outlet is connected provided with blast pipe with heat exchanger 22,22 hot gas outlet of heat exchanger connection boiler tube head air inlet, heat exchange
The cold gas outlet of device 22 connects back to hydrogen processor or hydrogen discharge gas bag 20, heat exchanger 22 are also set along hydrogen air inlet.Heat exchange
Device 22 runs through body of heater.Boiler tube tail end connection discharging boiler tube 11, is provided with roller rail 10 in discharging boiler tube 11, with reduce push away boat and
Frictional force between boiler tube.
The boiler tube front support is wholy set on an automatic telescopic platform, and the boiler tube rear end supports whole installation
In on rear automatic telescopic platform.
Material loads material boat 24 through expecting that the defeated boat machine 2 of boat is sent into charging transitional storehouse 4 during use, closes and feeds outer door 3, opens
It door 5 in charging, will expect that boat 24 is pushed into boiler tube by delivery device, close door 5 in charging, material along hydrogen in boiler tube with occurring also
Original reaction, on the other hand cold hydrogen passes through is preheated along hydrogen air inlet 19 into heat exchanger 22, and hydrogen is entered by boiler tube front end after preheating
Gas port enters boiler tube, is reacted with pushing away material in boat, advances under pusher effect along boiler tube terminad, unnecessary hydrogen after reaction
Gas is that gas outlet 21 enters gas passage 25 in boiler tube in stove through gas passage air inlet, enters heat by the gas outlet of gas passage 25
Exchanger 22；Reduction reaction material is moved back into inverse hydrogen reduction portion under pusher migration along boiler tube；Reverse hydrogen by
Discharge nozzle afterbody enters against hydrogen air inlet 18, is met along rear boiler tube and reverse flow material, hydrogen portion reducing material, and this is inverse
Hydrogen conversion zone, gas is that gas outlet 21 flows into boiler tube gas passage 25 in stove through gas passage air inlet after remainder reaction
It is interior, enter through escape pipe in 22 pipes of heat exchanger and heat exchange occurs with hydrogen outside example pipe, realize cold hydrogen heating, improve heat
Utilize, reused after entering back hydrogen purification after gas outflow heat exchanger after reaction.
Claims (8)
1. a kind of be arranged in frame using along inverse supply hydrogen multi-tube furnace, including body of heater, boiler tube, boiler tube through body of heater simultaneously,
It is characterized in that：Boiler tube sets gas passage and material reduction passage after reaction；Wherein, material reduction passage is provided with slide rail and supplies thing
Material pushes away boat movement；Gas inlet after reacting is provided with boiler tube among gas passage and is gone out with reduction passage UNICOM, gas passage
Gas port is located at boiler tube head；Boiler tube material reduction passage is divided into anterior suitable hydrogen reduction passage with after at gas passage air inlet
Portion along hydrogen reduction passage is that boiler tube head is provided with hydrogen inlet, and material inlet in boiler tube against hydrogen reduction passage, and boiler tube is against hydrogen
Reducing passage includes rear boiler tube, discharging boiler tube, and rear boiler tube one end communicates with gas outlet in upper furnace, the rear boiler tube other end and discharging
Boiler tube connects；Discharging boiler tube end is provided with cold hydrogen air inlet.
2. it is further described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to claim 1, it is characterized in that：The gas
Body passage is arranged on boiler tube top, and the material reduction passage is arranged on boiler tube bottom.
3. it is a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to claim 1, it is characterized in that：Before hydrogen reduction passage
Repeatedly kick into material transitional storehouse, charging transitional storehouse is provided with door in charging and feeds outer door, along hydrogen reduction passage by door in charging and
Communicated between charging transitional storehouse, charging transitional storehouse communicates through feeding outer door with the material defeated boat machine of boat.
4. it is a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to claim 1, it is characterized in that：Also include heat exchange
Device, boiler tube Head gas passage gas outlet are connected provided with blast pipe with heat exchanger, the hot gas outlet connection boiler tube head of heat exchanger
Portion's air inlet, the cold gas outlet of heat exchanger connects back to hydrogen processor or hydrogen discharge gas bag, heat exchanger are also set along hydrogen air inlet.
5. it is described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to one of claim 1-3, it is characterized in that：Heat exchanger
Through body of heater.
6. it is described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to one of claim 1-3, it is characterized in that：The boiler tube
Tail end connection discharging boiler tube, discharging boiler tube is interior to be provided with roller rail, and frictional force between boat and boiler tube is pushed away to reduce.
7. it is described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to one of claim 1-3, it is characterized in that：The boiler tube
Front support is wholy set on an automatic telescopic platform, and the boiler tube rear end support is wholy set in rear automatic telescopic platform
On.
8. it is described a kind of simultaneously using suitable inverse supply hydrogen multi-tube furnace according to one of claim 1-3, it is characterized in that：The boiler tube
For pipe or square tube.
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| CN201720635550.XU CN206839178U (en) | 2017-06-03 | 2017-06-03 | It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace |
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| CN201720635550.XU CN206839178U (en) | 2017-06-03 | 2017-06-03 | It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008918A (en) * | 2017-06-03 | 2017-08-04 | 赣州鼎盛炉业有限公司 | It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008918A (en) * | 2017-06-03 | 2017-08-04 | 赣州鼎盛炉业有限公司 | It is a kind of to use simultaneously along inverse supply hydrogen multi-tube furnace |
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