CN202141345U - Tail gas recovering system for annealing furnace - Google Patents
Tail gas recovering system for annealing furnace Download PDFInfo
- Publication number
- CN202141345U CN202141345U CN201120087521U CN201120087521U CN202141345U CN 202141345 U CN202141345 U CN 202141345U CN 201120087521 U CN201120087521 U CN 201120087521U CN 201120087521 U CN201120087521 U CN 201120087521U CN 202141345 U CN202141345 U CN 202141345U
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- gas
- annealing furnace
- tail gas
- recovery system
- air inlet
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Abstract
The utility model provides a tail gas recovering system for an annealing furnace, which can effectively recover the tail gas of the annealing furnace for secondary use, and reduce environment pollution. The tail gas recovering system adopts the structure that an air outlet of the annealing furnace, a gas elution device, a gas filtering device, a gas purifier for deoxidizing and drying gas, and a surge tank are connected in series through pipelines.
Description
Technical field
The utility model relates to a kind of device for recovering tail gas of the usefulness of annealing, and preparation high-purity hydrogen or high pure nitrogen or high purity inert gas recycle as the protection gas in the annealing furnace production process.
Background technology
Hydrogen, nitrogen and inert gas are sources of the gas necessary in the commercial production, mainly should the field: metallurgy and heat treatment, petrochemical industry, lubricating oil, glass and plate glass manufacturing, chemistry and medical industry, food technology, part fine chemistry industry.
In the annealing furnace use; Need to use a large amount of high-purity hydrogen or high pure nitrogen or inert gas; Gas consumption does not per hour per hour wait to several thousand mark sides from a few mark sides, and the manufacturing cost of used protective gas is high, and these gases use directly discharging of back at annealing furnace; Not only environment is impacted, and improved the manufacturing cost of product.
Novel energy and the power-saving technology advocated energetically in current country; To annealing furnace in running; Characteristics such as the changes in flow rate of protection gas is big, pressure oscillation furnace sealing property big and annealing furnace differs greatly; This patent proposes the tail gas of annealing furnace is carried out the recovery of special process, required protective gas in the industry production such as preparation iron and steel, metallurgy.This device has advantages such as the small scale investment is low, pollution-free, and cost of material is cheap and stable.
Summary of the invention
The purpose of the utility model provides a kind of can be effectively the annealing furnace tail gas recycle being got up to utilize once more, and the annealing furnace that reduces environmental pollution is used exhaust gas recovery system.
The annealing furnace of the utility model is used exhaust gas recovery system, the gas outlet of annealing furnace, gas elution device, gas-filtering device, to gas carry out deoxygenation, dry gas purifier, vacuum tank connected through pipeline successively.
Annealing furnace tail gas gets into the gas elution device through drip washing, solid impurity is removed basically through gas-filtering device filters after again through the gas outlet, and then through gas purifier gas is carried out deoxygenation, drying, can send into store in the vacuum tank subsequent use.Therefore, the beneficial effect of the utility model: tail gas is directly emptying, carries out preliminary treatment (comprising drip washing, filtration), after purified treatment (comprising deoxygenation, drying), stores but be collected.Therefore, reduced environmental pollution, can utilize once more, accomplished energy-conservation handling back tail gas.
Above-mentioned annealing furnace is used exhaust gas recovery system, and vacuum tank communicates with the air inlet of annealing furnace through air inlet pipe, and air inlet pipe is provided with pressure, flow control valve.Like this, the gas in the vacuum tank just can be sent in the annealing furnace through air inlet pipe once more, has accomplished recycling of gas.Pressure, flow control valve major control get into the gas pressure and the flow of annealing furnace.
Above-mentioned annealing furnace is used exhaust gas recovery system, on the gas outlet of annealing furnace and the pipeline between the gas elution device, is in series with the exhaust collection jar.Preferably, on the pipeline between gas-filtering device and the gas purifier, be in series with booster pump.
Above-mentioned annealing furnace is used exhaust gas recovery system, and said tail gas is meant hydrogen, nitrogen or inert gas.
The elution device of gas described in the utility model, gas-filtering device, gas purifier, booster pump, exhaust collection jar, vacuum tank etc. all belong to existing apparatus, no longer describe.
Description of drawings
Fig. 1 is the sketch map of the utility model.
The specific embodiment
Use exhaust gas recovery system referring to annealing furnace shown in Figure 1; The air inlet of the gas outlet of annealing furnace 1, exhaust collection jar 2, gas elution device 3, gas-filtering device 4, booster pump 5, gas purifier 6, vacuum tank 7, annealing furnace 1 is connected through pipeline 10 successively, forms a closed-loop path.Vacuum tank and and the air inlet of annealing furnace between pipeline be provided with pressure-control valve (group) 8, flow control valve (group) 9.
From annealing furnace, collect 200Nm
3/ h is the tail gas of protection gas with nitrogen, at first gets into 4m
3The exhaust collection jar carries out supercharging after preliminary treatment, reentrant gas cleaning plant is handled (catalytic deoxidation, drying dewater and end-filtration), makes the oxygen content of gas be reduced to below-60 ℃ less than 3ppm and dew point; Nitrogen after the purification gets into 2m
3Pure gas vacuum tank; Delivering to annealing furnace through control valve group control outlet pressure and flow at last recycles.Also can carry out secondary booster to the high pure nitrogen that disposes, the nitrogen system pipe network of can to plant area, other that supply to on-site use points.
Collect tail gas to the exhaust collection jar of annealing furnace; After preliminary treatment (drip washing, filtration), carry out supercharging with booster pump; Get into gas purifier again and carry out deoxygenation, drying, obtain meeting the protection gas that annealing furnace uses, reclaim gas and behind pressure regulating system, recycle to annealing furnace.The device for recovering tail gas of the utility model is that the tail gas to annealing furnace carries out collection and treatment and purifying, obtains stable high-purity hydrogen or high pure nitrogen or high purity inert gas, reaches the required stable gas dew point of annealing furnace simultaneously.
A kind of gas concentration unit of the utility model through collecting the tail gas of annealing furnace, and carries out purified treatment to tail gas, obtains high-purity hydrogen or high pure nitrogen or high purity inert gas.The utility model is a raw material with the tail gas of annealing furnace, and tail gas is carried out collection and treatment and purifying, obtains meeting the protection gas that annealing furnace uses, and reclaims gas and behind pressure regulating system, recycles to annealing furnace.It is high that the utility model has solved production high-purity hydrogen or high pure nitrogen or high purity inert gas cost; And the problem of the wasting of resources of annealing furnace protective gas emptying; Adopted the tail gas that reclaims annealing furnace to prepare high-purity hydrogen or high pure nitrogen or high purity inert gas; The energy consumption that reduces greatly, thus the production cost that reduces is increased economic efficiency.Advantages such as this stable equipment operation and small scale investment are low, pollution-free, and cost of material is cheap and stable.
Claims (4)
1. annealing furnace is used exhaust gas recovery system, it is characterized in that: the gas outlet of annealing furnace, gas elution device, gas-filtering device, to gas carry out deoxygenation, dry gas purifier, vacuum tank connected through pipeline successively.
2. annealing furnace as claimed in claim 1 is used exhaust gas recovery system, it is characterized in that: vacuum tank communicates with the air inlet of annealing furnace through air inlet pipe, and air inlet pipe is provided with pressure, flow control valve.
3. annealing furnace as claimed in claim 1 is used exhaust gas recovery system, it is characterized in that: on the gas outlet of annealing furnace and the pipeline between the gas elution device, be in series with the exhaust collection jar.
4. annealing furnace as claimed in claim 3 is used exhaust gas recovery system, it is characterized in that: on the pipeline between gas-filtering device and the gas purifier, be in series with booster pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120087521U CN202141345U (en) | 2011-03-30 | 2011-03-30 | Tail gas recovering system for annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120087521U CN202141345U (en) | 2011-03-30 | 2011-03-30 | Tail gas recovering system for annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141345U true CN202141345U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120087521U Expired - Fee Related CN202141345U (en) | 2011-03-30 | 2011-03-30 | Tail gas recovering system for annealing furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN202141345U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215414A (en) * | 2013-04-24 | 2013-07-24 | 苏州品源气体设备有限公司 | Shielding gas recovery and cyclic utilization system for vacuumized bell-type bright annealing furnaces |
| CN104677123A (en) * | 2014-12-19 | 2015-06-03 | 山东钢铁股份有限公司 | Hearth protective gas recycling method |
| CN111424153A (en) * | 2020-04-20 | 2020-07-17 | 江西耐乐科技协同创新有限公司 | Nitrogen recycling device for use in heat preservation period of bell-type annealing furnace |
| CN111578701A (en) * | 2020-05-27 | 2020-08-25 | 无锡隆达金属材料有限公司 | Bell jar furnace nitrogen purification and cyclic utilization device and process |
| CN114480812A (en) * | 2020-11-11 | 2022-05-13 | 上海宝信软件股份有限公司 | Annealing furnace protective gas recovery device and method with two-stage pressure regulation function |
| CN114674159A (en) * | 2022-03-07 | 2022-06-28 | 河南新北方净化设备安装有限公司 | Device treatment method for recycling and purifying waste gas energy of annealing furnace |
-
2011
- 2011-03-30 CN CN201120087521U patent/CN202141345U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215414A (en) * | 2013-04-24 | 2013-07-24 | 苏州品源气体设备有限公司 | Shielding gas recovery and cyclic utilization system for vacuumized bell-type bright annealing furnaces |
| CN104677123A (en) * | 2014-12-19 | 2015-06-03 | 山东钢铁股份有限公司 | Hearth protective gas recycling method |
| CN111424153A (en) * | 2020-04-20 | 2020-07-17 | 江西耐乐科技协同创新有限公司 | Nitrogen recycling device for use in heat preservation period of bell-type annealing furnace |
| CN111578701A (en) * | 2020-05-27 | 2020-08-25 | 无锡隆达金属材料有限公司 | Bell jar furnace nitrogen purification and cyclic utilization device and process |
| CN114480812A (en) * | 2020-11-11 | 2022-05-13 | 上海宝信软件股份有限公司 | Annealing furnace protective gas recovery device and method with two-stage pressure regulation function |
| CN114674159A (en) * | 2022-03-07 | 2022-06-28 | 河南新北方净化设备安装有限公司 | Device treatment method for recycling and purifying waste gas energy of annealing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20120330 |