CN206632372U - A kind of powder reduction furnace atmosphere recycling device - Google Patents
A kind of powder reduction furnace atmosphere recycling device Download PDFInfo
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- CN206632372U CN206632372U CN201720425369.6U CN201720425369U CN206632372U CN 206632372 U CN206632372 U CN 206632372U CN 201720425369 U CN201720425369 U CN 201720425369U CN 206632372 U CN206632372 U CN 206632372U
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- Prior art keywords
- reduction furnace
- atmosphere
- gas
- recycling device
- condenser
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Abstract
The utility model provides a kind of powder reduction furnace atmosphere recycling device, including air entry, described air entry connects with reduction furnace tube aspirating air pipe, the exit of aspirating air pipe is connected with air-introduced machine, described air-introduced machine connects condenser by discharge duct, described condenser is connected with gas-liquid separator, and gas-liquid separator is connected by admission line with the air inlet of reduction furnace, and the beneficial effects of the utility model are：It is easily operated：When progress atmosphere recycles every time, blower fan, condenser and gas-liquid separator only need to be opened successively, without that can meet using other ancillary methods.Reduce production cost：After installing atmosphere reclamation set, while reduction effect is ensured, atmosphere recycles, and improves atmosphere utilization rate, reduces production gas consumption, reduces production cost.
Description
Technical field
It the utility model is related to metal powder reduction stove technical field, more particularly to a kind of powder reduction furnace atmosphere circulation profit
Use device.
Background technology
During the metal powder reductions such as nickel powder, cobalt powder, iron powder, copper powder, after reducing atmosphere typically uses ammonolysis craft
(ratio is classified as 1 to nitrogen and hydrogen mixture：3), because preventing air from entering, barotropic state must be kept by reducing in burner hearth, and pressure is typically kept
In 0.09-0.1mpa, so the nitrogen and hydrogen mixture being passed through is the tolerance for being far longer than technological requirement, Residual Gas fires in burner
Emptying is burnt, causes that reducing atmosphere utilization rate is low, production cost increase.
Utility model content
The utility model provides a kind of powder reduction furnace atmosphere recycling device, realizes that atmosphere is recycled, reduced
Produce gas consumption, reduce production cost.
In order to solve the above technical problems, the utility model provides a kind of powder reduction furnace atmosphere recycling device, bag
Air entry is included, described air entry is connected with reduction furnace tube aspirating air pipe, and the exit of aspirating air pipe is connected with air-introduced machine, described
Air-introduced machine condenser is connected by discharge duct, described condenser is connected with gas-liquid separator, and gas-liquid separator passes through
Admission line is connected with the air inlet of reduction furnace.
As a preferable technical scheme of the present utility model, described air entry is located at reduction furnace first order heating furnace
The center of pipe, opening diameter 40mm.
As a preferable technical scheme of the present utility model, described aspirating air pipe and reduction furnace Muffle material one
Cause, a diameter of 25mm of aspirating air pipe, and laid between boiler tube and heat-insulation layer along material traffic direction, in first order heating furnace
The flange connections of pipe end are drawn.
As a preferable technical scheme of the present utility model, described condenser is coated on outside discharge duct, and cold
Coolant is walked in condenser pipe, coolant is deionized water.
As a preferable technical scheme of the present utility model, described air inlet is located at reduction furnace heating zone and cooling
The flange connections in area.
As a preferable technical scheme of the present utility model, described gas-liquid separator is used for the atmosphere being condensed
Gas-liquid separation.
The one or more technical schemes provided in the embodiment of the present application, have at least the following technical effects or advantages：
The apparatus structure is simple, it is easily operated, reduce operating cost, can be passed through reducing atmosphere steel belt type reducing furnace,
Used on tubular reduction furnace or net belt type reduction furnace.The utility model has the beneficial effect that：
1st, it is easily operated：When progress atmosphere recycles every time, blower fan, condenser and gas-liquid separation only need to be opened successively
Device, without that can be met using other ancillary methods.
2nd, production cost is reduced：After installing atmosphere reclamation set, while reduction effect is ensured, atmosphere recycles,
Atmosphere utilization rate is improved, production gas consumption is reduced, reduces production cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
Some embodiments of the utility model, for those of ordinary skill in the art, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is overall structure diagram of the present utility model；
In figure, 1- air entries, 2- aspirating air pipes, 3- air-introduced machines, 4- condensers, 5- gas-liquid separators, 6- admission lines, 7-
Air inlet, 8- boiler tubes, 9- heat-insulation layers, 10- heating zones, 11- cooling zones.
Embodiment
The utility model provides a kind of powder reduction furnace atmosphere recycling device, realizes that atmosphere is recycled, reduced
Produce gas consumption, reduce production cost.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
Technical scheme is stated to be described in detail.
As shown in figure 1, a kind of powder reduction furnace atmosphere recycling device of the present embodiment, including air entry 1, institute
The air entry 1 stated is connected with reduction furnace tube aspirating air pipe 2, and the exit of aspirating air pipe 2 is connected with air-introduced machine 3, described air inducing
Machine 3 connects condenser 4 by discharge duct, and described condenser 4, gas-liquid separator 5 are connected, and gas-liquid separator 5 is by entering
Feed channel 6 is connected with the air inlet 7 of reduction furnace.
Wherein, in the present embodiment, described air entry 1 is located at the center of reduction furnace first order furnace tubing, opens
The a diameter of 40mm of mouth.
Wherein, in the present embodiment, described aspirating air pipe 2 is consistent with reduction furnace Muffle material, the diameter of aspirating air pipe
For 25mm, and laid between boiler tube 8 and heat-insulation layer 9 along material traffic direction, the flange in first order furnace tubing end connects
Place is met to draw.
Wherein, in the present embodiment, described condenser 4 is coated on outside discharge duct, and condenser 4 manage in walk cooling
Liquid, coolant are deionized water.
Wherein, in the present embodiment, described air inlet 7 is located at reduction furnace heating zone 10 and is connected with the flange of cooling zone 11
Place.
Wherein, in the present embodiment, described gas-liquid separator 5 is used for the gas-liquid separation for the atmosphere being condensed.
More specifically embodiment is as follows：
Embodiment 1
Using nickel oxalate as raw material, with steel belt type reducing furnace reduced nickel powder, with nitrogen to burner hearth and atmosphere recycling device
Purging, after furnace air purging to be restored is clean, nitrogen and hydrogen mixture is passed through by reduction furnace heating segment trailer, entered by burner
Material, inlet amount 228kg per hour, treat that material is transmitted to stove tail by steel band, ON cycle utilizes aspirating air pipe on device successively
On valve, air-introduced machine, condenser, gas-liquid separator and admission line valve；The imported valve of condenser cold fluid is opened, it is right
Cooled by circulating atmosphere, atmosphere temperature reaches 100 DEG C or so, and the separation of atmosphere and water is realized by gas-liquid separator, separation
Atmosphere after moisture is entered in stove by the stove tail flange port of bringing-up section to be recycled, and realizes recycling for atmosphere.Atmosphere reuse
Amount 67%, calculated according to 2200 yuan of liquefied ammonia per ton, disregard the manufacturing expense of gas, then product per ton saves 863 yuan, to produce per year
500 tons of nickel powders calculate, then annual cost-effective 430,000 yuan.
Atmosphere reuse is analyzed：
1st, furnace atmosphere situation
2NiC2O4.2NH3.2H2O+H2=2Ni+CO+3CO2+5H2O+4NH3
VCO=11.8m3/h、VCO2=35.4m3/h、VH2O=58.9m3/h、VNH3=47m3/h
VN2+H2=100-23.56=76.4m3/ h (decomposed ammonia)
VAlways=VCO+VCO2+VH2O+VNH3+VN2+H2=11.8+35.4+58.9+47+76.4=229m3/h
2nd, by 200m3/ h extracts atmosphere reuse, and each atmosphere content situation is as follows：
VCO=10.3m3/h、VCO2=30.9m3/h、VH2O=51.4m3/h、VNH3=41.0m3/h
VN2+H2=66.7m3/h(VN2=16.7m3/ h, VH2=50m3/h)
Embodiment 2
Using cobalt carbonate as raw material, cobalt powder is reduced with tubular reduction furnace, burner hearth and atmosphere recycling device are blown with nitrogen
Sweep, after furnace air purging to be restored is clean, nitrogen and hydrogen mixture is passed through by reduction furnace heating segment trailer, carbonic acid is entered by burner
Cobalt raw material, inlet amount 228kg per hour, treat that material is transmitted to stove tail by boiler tube, ON cycle utilizes air-breathing on device successively
Valve, air-introduced machine, condenser, gas-liquid separator and admission line valve on pipeline；Open the inlet valve of condenser cold fluid
Door, to being cooled by circulating atmosphere, atmosphere temperature reaches 100 DEG C or so, and the separation of atmosphere and water is realized by gas-liquid separator,
Atmosphere after separation moisture is entered in stove by the stove tail flange port of bringing-up section to be recycled, and realizes recycling for atmosphere.Atmosphere
Reuse amount 55.6%, calculated according to 2200 yuan of liquefied ammonia per ton, disregard the manufacturing expense of gas, then product per ton cost-effective 613
Member, calculated with producing 500 tons of cobalt powders per year, then it is annual cost-effective 310,000 yuan.
Atmosphere reuse is analyzed：
1st, furnace atmosphere situation
CoCO3+H2=Co+CO2+H2O
119 1 1
228kg/h VCO2 VH2O
VCO2=42.9m3/h、VH2O=42.9m3/h、VN2+H2=150-42.9=107.1m3/ h (decomposed ammonia)
VAlways=VCO2+VH2O+VN2+H2=192.9m3/h
2nd, by 150m3/ h extracts atmosphere reuse, and each atmosphere content situation is as follows：
VCO2=33.6m3/h、VH2O=33.6m3/h
VN2+H2=83.3m3/h(VN2=20.8m3/ h, VH2=62.5m3/h)
Embodiment 3
Using iron oxide as raw material, with net belt type reduction furnace reduced iron powder, with nitrogen to burner hearth and atmosphere recycling device
Purging, after furnace air purging to be restored is clean, nitrogen and hydrogen mixture is passed through by reduction furnace heating segment trailer, oxygen is entered by burner
Change iron material, per hour inlet amount 228kg, treat that material is transmitted to stove tail by boiler tube, ON cycle utilizes successively inhales on device
Valve, air-introduced machine, condenser, gas-liquid separator and admission line valve in feed channel；Open the import of condenser cold fluid
Valve, to being cooled by circulating atmosphere, atmosphere temperature reaches 100 DEG C or so, and point of atmosphere and water is realized by gas-liquid separator
From the atmosphere after separation moisture is entered in stove by the stove tail flange port of bringing-up section to be recycled, and realizes recycling for atmosphere.Gas
Atmosphere cyclic utilization rate is 68.3%, is calculated according to 2200 yuan of liquefied ammonia per ton, disregards the manufacturing expense of gas, then product saving per ton
1375 yuan, calculated with producing 500 tons of iron powders per year, then it is annual cost-effective 690,000 yuan.
Atmosphere reuse is analyzed：
1st, furnace atmosphere situation
Fe3O4+4H2=Fe+4H2O
232 4
228kg/h VH2O
VH2O=88.1m3/h、VN2+H2=311.9m3/ h (decomposed ammonia)
VAlways=VCO2+VH2O+VN2+H2=88.1+311.9=400m3/h
2nd, by 350m3/ h extracts atmosphere reuse, and each atmosphere content situation is as follows：
VH2O=66.1m3/h、VN2+H2=272.9m3/h(VN2=68.2m3/ h, VH2=204.6m3/h)。
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still
Belong in the range of technical solutions of the utility model.
Claims (6)
- A kind of 1. powder reduction furnace atmosphere recycling device, it is characterised in that：Including air entry (1), described air entry (1) Connected with reduction furnace tube aspirating air pipe (2), the exit of aspirating air pipe (2) is connected with air-introduced machine (3), described air-introduced machine (3) Condenser (4) is connected by discharge duct, described condenser (4), gas-liquid separator (5) be connected, gas-liquid separator (5) with It is connected by admission line (6) with the air inlet (7) of reduction furnace.
- A kind of 2. powder reduction furnace atmosphere recycling device according to claim 1, it is characterised in that：Described air entry (1) it is located at the center of reduction furnace first order furnace tubing, opening diameter 40mm.
- A kind of 3. powder reduction furnace atmosphere recycling device according to claim 1, it is characterised in that：Described air intake duct Road (2) is consistent with reduction furnace Muffle material, a diameter of 25mm of aspirating air pipe, and along thing between boiler tube (8) and heat-insulation layer (9) Expect traffic direction laying, the flange connections in first order furnace tubing end are drawn.
- A kind of 4. powder reduction furnace atmosphere recycling device according to claim 1, it is characterised in that described condenser (4) it is coated on outside discharge duct, and coolant is walked in condenser (4) pipe, coolant is deionized water.
- A kind of 5. powder reduction furnace atmosphere recycling device according to claim 1, it is characterised in that described air inlet (7) positioned at the flange connections of reduction furnace heating zone (10) and cooling zone (11).
- A kind of 6. powder reduction furnace atmosphere recycling device according to claim 1, it is characterised in that described gas-liquid point The gas-liquid separation for the atmosphere for being used to be condensed from device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720425369.6U CN206632372U (en) | 2017-04-21 | 2017-04-21 | A kind of powder reduction furnace atmosphere recycling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720425369.6U CN206632372U (en) | 2017-04-21 | 2017-04-21 | A kind of powder reduction furnace atmosphere recycling device |
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| CN206632372U true CN206632372U (en) | 2017-11-14 |
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| CN201720425369.6U Expired - Fee Related CN206632372U (en) | 2017-04-21 | 2017-04-21 | A kind of powder reduction furnace atmosphere recycling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983263A (en) * | 2017-12-19 | 2018-05-04 | 广州弘皓电子科技有限公司 | Coral powder hydrogenation technique and system under a kind of hydrogen circulation |
-
2017
- 2017-04-21 CN CN201720425369.6U patent/CN206632372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983263A (en) * | 2017-12-19 | 2018-05-04 | 广州弘皓电子科技有限公司 | Coral powder hydrogenation technique and system under a kind of hydrogen circulation |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Gan River Industrial Park in Xining economic and Technological Development Zone 810000 Qinghai city of Xining Province Patentee after: Qinghai quick donkey Hi Tech Co.,Ltd. Address before: Gan River Industrial Park in Xining economic and Technological Development Zone 810000 Qinghai city of Xining Province Patentee before: QINGHAI FAST DONKEY ELECTRIC CAR TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |