CN202494343U - Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system - Google Patents
Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system Download PDFInfo
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- CN202494343U CN202494343U CN2011203986936U CN201120398693U CN202494343U CN 202494343 U CN202494343 U CN 202494343U CN 2011203986936 U CN2011203986936 U CN 2011203986936U CN 201120398693 U CN201120398693 U CN 201120398693U CN 202494343 U CN202494343 U CN 202494343U
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- gas outlet
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- tail gas
- roots blower
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model relates to a tail gas purification and cyclic utilization device for a bell-type bright annealing furnace system. A gas outlet of an annealing furnace is provided with a leaching tower, a gas outlet of which is connected with a gas-water separator. A gas outlet of the gas-water separator is connected with a roots blower, a gas outlet of which is provided with a catalytic purification device. A cooler, a condenser, the gas-water separator and an adsorption type drying device are successively arranged at a gas outlet of the catalytic purification device. A gas outlet of the adsorption type drying device communicates with an air intake of the annealing furnace through a pressure adjustment assembly. By the adoption of the tail gas purification and cyclic utilization device, tail gas is recovered and purified and is then used as a shielding gas which enters into the annealing furnace for cyclic utilization.
Description
Technical field
The utility model relates to shield type bright annealing oven, relates in particular to the tail gas clean-up recycle device of shield type bright annealing oven system.
Background technology
Domestic existing shield type bright annealing oven system adopts decomposed ammonia as protection gas mostly; The composition of decomposed ammonia is 75% hydrogen and 25% nitrogen; Decomposed ammonia has been sneaked into the impurity component that is no more than 2% volume after through bell furnace: impurity mainly is the hydrocarbon that generates of dust, greasy dirt, cold-rolled lubricating oil imperfect combustion, water, CO, CO2, H2S etc.; Existing technology mainly is that above-mentioned gas is burnt or directly to airborne release, caused the ample resources waste.
Therefore, develop the tail gas clean-up recycle device of a kind of shield type bright annealing oven system, annealing furnace tail gas is fully utilized, can reduce energy resource consumption,, reduce the discharging of industrial tail gas again, have great importance for the user practices thrift certain cost.
The utility model content
The purpose of the utility model is to overcome the deficiency that prior art exists, and the tail gas clean-up recycle device of a kind of shield type bright annealing oven system is provided, and realization will to purify and remake be that protection gas gets into the annealing furnace recycle for it recycles.
The purpose of the utility model realizes through following technical scheme:
The tail gas clean-up recycle device characteristic of shield type bright annealing oven system is: before annealing furnace exhaust emissions pipeline pressure drain valve, draw an interface; Connect that eluting column, eluting column gas outlet connect moisture trap, the moisture trap gas outlet connects Roots blower, the gas outlet of roots blower connect arrangement for catalytic purification, back level successively cooler, condenser, moisture trap, absorbed type drying device, behind pressure-regulating device, insert the annealing furnace air inlet.
Further, the tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system wherein, is provided with switching valve, counterbalance valve between annealing furnace gas outlet and eluting column; On the pipeline between eluting column gas outlet and the moisture trap import, first pressure transmitter is set; Second pressure transmitter is set on pipeline between roots blower gas outlet and the arrangement for catalytic purification; The 3rd pressure transmitter is set on the pipeline between pressure-regulating device and the bell furnace; Be provided with between check valve, the air inlet/outlet in the roots blower gas outlet hydrogen return line is set, pressure-regulating valve is housed on the return line at roots blower; Pipeline between roots blower gas outlet and arrangement for catalytic purification is incubated processing; The safety vent pipeline is set between absorbed type drying device gas outlet and pressure-regulating device, autocontrol valve and equilibrated valve are set on the safety vent pipeline, safety vent pipe gas outlet meets the emptying house steward.
Further; The tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system; Wherein, First pressure transmitter on the eluting column outlet pipe links to each other with the frequency converter of roots blower through PLC with second pressure transmitter on the pipeline of roots blower gas outlet, behind the pressure-regulating device on the pipeline the 3rd pressure transmitter be connected through autocontrol valve on PLC and the decomposed ammonia air inlet pipeline.
Further, the tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system wherein, is connected to water sealed tank in said eluting column leacheate gas outlet, and water sealed tank is provided with liquid-level switch.
Further, the tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system wherein, is provided with emptying pipe in said moisture trap discharge outlet and inserts the emptying water sealed tank, and control valve is set on the emptying pipe.
Further, the tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system wherein, is equipped with three kinds of adsorbents that cooperate by a certain percentage in said adsorption dry device, removes oil adsorbent, slightly removes water absorbent, the degree of depth except that water absorbent.
Further; The tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system; Wherein, be connected to nitrogen pipeline respectively and dried purified gas is taken in the regeneration gas import of said drying device, and on nitrogen pipeline and purified gas pipeline, sequence valve be housed respectively.The regeneration gas outlet pipeline of dropping a hint inserts total blowdown piping.
Further, the tail gas clean-up recycle device of above-mentioned shield type bright annealing oven system wherein, is equipped with Analysis Hydrogen appearance, little oxygen analyzer and dew point analysis appearance on the pipeline of said adsorption dry device gas outlet.
The tail gas clean-up utilization process of the utility model shield type bright annealing oven system; Characteristics are: the tail gas that the shield type bright annealing oven system produces is through the cooling of eluting column water wash and remove objectionable impurities such as the dust in the tail gas, residual ammonia, hydrogen sulfide; The tail gas of drip washing is removed a large amount of water and greasy dirt behind moisture trap; Get into roots blower and carry out supercharging, the gas after the supercharging at first gets into arrangement for catalytic purification and removes oxygen and transform portion hydrocarbon, generates water and emits great amount of heat; Purify back gas again after cooler cooling and condenser dewater, come out separated form water through moisture trap; Again through the absorbed type drying device carry out gas degree of depth oil removing, dewater, removal of impurity gas, accomplish the purification process of tail gas; Purified gas is sent into bright annealing bell furnace system after through the pressure-regulating device pressure regulation.
The substantive distinguishing features of the utility model technical scheme is mainly reflected in progressive: the utility model is novel in design, realizes the tail gas clean-up recycle with the shield type bright annealing oven system, and remakes to protecting gas to get into the annealing furnace recycle.Thereby, avoided protection gas directly to burn or, saved the energy greatly the atmosphere emptying, adapt to the energy-saving and emission-reduction developing direction, economic benefit and social effect are remarkable.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The implication of each Reference numeral sees the following form among the figure:
The specific embodiment
Before annealing furnace E06 exhaust emissions pipeline pressure drain valve, draw an interface, connect eluting column E02, eluting column E02 gas outlet connect gas outlet that moisture trap E04, moisture trap E04 gas outlet meet Roots blower E05, roots blower E05 connect arrangement for catalytic purification E07, back level successively cooler E08, condenser E09, moisture trap E10, absorbed type drying device E12, behind pressure-regulating device E13, insert annealing furnace E06 air inlet.
Switching valve, counterbalance valve E01 are set between annealing furnace E06 gas outlet and eluting column E02; The first pressure transmitter PIT01 is set on the pipeline between eluting column E02 gas outlet and the moisture trap E04 import, the second pressure transmitter PIT02 is set on pipeline between roots blower E05 gas outlet and the arrangement for catalytic purification E07; The 3rd pressure transmitter PIT03 is set on the pipeline between pressure-regulating device E13 and the bell furnace E06; In roots blower E05 gas outlet check valve V05 is set, a hydrogen return line is set between the air inlet/outlet of roots blower E05, pressure-regulating valve V04 is housed on the return line; Pipeline between roots blower E05 gas outlet and arrangement for catalytic purification E07 is incubated processing; Safety vent pipeline E15 is set between absorbed type drying device E12 gas outlet and pressure-regulating device E13, autocontrol valve V12 and equilibrated valve V11 are set on the safety vent pipeline, safety vent pipe gas outlet meets the emptying house steward; The first pressure transmitter PIT01 on the eluting column E02 outlet pipe links to each other with the frequency converter of roots blower E05 through PLC with the second pressure transmitter PIT02 on the pipeline of roots blower E05 gas outlet, behind the pressure-regulating device E13 on the pipeline the 3rd pressure transmitter PIT03 be connected through autocontrol valve on PLC and the decomposed ammonia air inlet pipeline; Be connected to water sealed tank E03 in eluting column E02 leacheate gas outlet, water sealed tank E03 is provided with liquid-level switch; Three kinds of adsorbents that cooperate by a certain percentage are housed in adsorption dry device E12; Remove oil adsorbent, slightly remove water absorbent, the degree of depth except that water absorbent; The regeneration gas import of drying device E12 is connected to nitrogen pipeline respectively and dried purified gas is taken over, and on nitrogen pipeline and purified gas pipeline, sequence valve is housed respectively; The regeneration gas outlet pipeline of dropping a hint inserts total blowdown piping; On the pipeline of adsorption dry device gas outlet, Analysis Hydrogen appearance, little oxygen analyzer and dew point analysis appearance are housed.In addition, in moisture trap E04 discharge outlet emptying pipe is set and inserts emptying water sealed tank E11, control valve is set on the emptying pipe.
The utilization said apparatus is during to the tail gas clean-up recycle of shield type bright annealing oven system; The back flow protection gas of annealing furnace E06 (back flow protection atmospheric pressure 20-49mbar) adopts mode that water spray and tail gas directly contacts to the tail gas temperature with high efficiency and remove harmful components such as the dust in the gas, residual ammonia, hydrogen sulfide through eluting column E02; The tail gas water in menstrual period of drip washing is removed a large amount of water and greasy dirt behind moisture trap E04; Get into roots blower E05 and carry out supercharging; Roots blower E05 is controlled at 9.8-49kpa with tail gas pressure; The temperature of tail gas rises to 80 ℃, and the gas after the supercharging gets at first that arrangement for catalytic purification E07 makes CO change CO2 into, O2 changes H2O into and removes oxygen and transform portion hydrocarbon, generates water and also emits great amount of heat; Purify back gas again after cooler cooling E08 and condenser E09 dewater, E10 comes out separated form water through moisture trap; Again through absorbed type drying device E12 carry out gas degree of depth oil removing, dewater, removal of impurity gas, accomplish the purification process of tail gas; Purified gas is sent into bright annealing bell furnace system after through the pressure-regulating device pressure regulation.
Safety vent pipeline E15, when the system pressure superelevation, gas is through equilibrated valve emptying.
The Analysis Hydrogen appearance divides appearance, dew point hygrometer to detect gas when defective when hydrogen divides appearance, oxygen, and gas is through control valve emptying.
Ammonia decomposes air inlet pipe, provides when bell furnace begins to anneal that the ammonia branch is vented one's spleen, tonifying Qi when bell furnace air inlet pressure is lower than setting value.
Pressure transmitter is that the pipeline different parts is carried out pressure acquisition, is convenient to the control of program.
The above only is the preferred implementation of the utility model; For the person of ordinary skill of the art; Under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (8)
1. the tail gas clean-up recycle device of a shield type bright annealing oven system; It is characterized in that: be equipped with eluting column in the annealing furnace gas outlet; The eluting column gas outlet is connected with moisture trap; Gas outlet at moisture trap connects Roots blower; The gas outlet of Roots blower is provided with arrangement for catalytic purification, and the gas outlet of arrangement for catalytic purification is furnished with cooler, condenser, moisture trap and absorbed type drying device successively, and the gas outlet of absorbed type drying device accesses to the annealing furnace air inlet through pressure-regulating device.
2. the tail gas clean-up recycle device of a kind of shield type bright annealing oven as claimed in claim 1 system, it is characterized in that: the pipeline between annealing furnace gas outlet and the eluting column is provided with switching valve, counterbalance valve; Pipeline between eluting column gas outlet and the moisture trap air inlet is provided with first pressure transmitter; Pipeline between roots blower gas outlet and the arrangement for catalytic purification is provided with second pressure transmitter; Pipeline between pressure-regulating device and the annealing furnace is provided with the 3rd pressure transmitter; End is provided with check valve in the roots blower gas outlet, and a hydrogen return line is set between the air inlet/outlet of roots blower, on the hydrogen return line pressure-regulating valve is installed; On the pipeline between roots blower gas outlet and the arrangement for catalytic purification, attemperator is installed; The safety vent pipeline is set between absorbed type drying device gas outlet and pressure-regulating device, autocontrol valve and equilibrated valve are set on the safety vent pipeline, safety vent pipe gas outlet end connects the emptying house steward.
3. the tail gas clean-up recycle device of a kind of shield type bright annealing oven as claimed in claim 2 system is characterized in that: first pressure transmitter on the eluting column outlet pipe links to each other with the frequency converter of roots blower through PLC with second pressure transmitter on the pipeline of roots blower gas outlet; Behind the pressure-regulating device on the pipeline the 3rd pressure transmitter be connected through autocontrol valve on PLC and the decomposed ammonia air inlet pipeline.
4. the tail gas clean-up recycle device of a kind of bell-type annealing furnace system as claimed in claim 2 is characterized in that: connect a water sealed tank in said eluting column gas outlet, said water sealed tank is provided with liquid-level switch.
5. the tail gas clean-up recycle device of a kind of shield type bright annealing oven as claimed in claim 2 system is characterized in that: in said moisture trap discharge outlet emptying pipe is set and inserts the emptying water sealed tank, control valve is set on the emptying pipe.
6. the tail gas clean-up recycle device of a kind of shield type bright annealing oven as claimed in claim 2 system; It is characterized in that: in said adsorption dry device, at least three kinds of adsorbents are installed, said three kinds of adsorbents comprise except that oil adsorbent, slightly remove water absorbent, the degree of depth except that water absorbent.
7. the tail gas clean-up recycle device of a kind of shield type bright annealing oven as claimed in claim 2 system; It is characterized in that: the regeneration gas import of said drying device is connected to nitrogen pipeline respectively and dried purified gas is taken over; And on nitrogen pipeline and purified gas pipeline, being separately installed with sequence valve, the regeneration gas outlet pipeline of dropping a hint inserts total blowdown piping.
8. the tail gas clean-up recycle device of a kind of shield type bright annealing oven as claimed in claim 2 system is characterized in that: on the pipeline of said adsorption dry device gas outlet, Analysis Hydrogen appearance, little oxygen analyzer and dew point analysis appearance are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203986936U CN202494343U (en) | 2011-10-19 | 2011-10-19 | Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203986936U CN202494343U (en) | 2011-10-19 | 2011-10-19 | Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494343U true CN202494343U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203986936U Expired - Fee Related CN202494343U (en) | 2011-10-19 | 2011-10-19 | Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494343U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538488A (en) * | 2011-10-19 | 2012-07-04 | 苏州新思气体系统有限公司 | Tail-gas purifying and recycling device and process of cover type bright annealing furnace system |
| CN104677123A (en) * | 2014-12-19 | 2015-06-03 | 山东钢铁股份有限公司 | Hearth protective gas recycling method |
| CN109224784A (en) * | 2018-09-30 | 2019-01-18 | 亚东石化(上海)有限公司 | Filter-press tail gas recovery device and method |
-
2011
- 2011-10-19 CN CN2011203986936U patent/CN202494343U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538488A (en) * | 2011-10-19 | 2012-07-04 | 苏州新思气体系统有限公司 | Tail-gas purifying and recycling device and process of cover type bright annealing furnace system |
| CN102538488B (en) * | 2011-10-19 | 2013-10-23 | 苏州新思气体系统有限公司 | Tail-gas purifying and recycling device and process of cover type bright annealing furnace system |
| CN104677123A (en) * | 2014-12-19 | 2015-06-03 | 山东钢铁股份有限公司 | Hearth protective gas recycling method |
| CN109224784A (en) * | 2018-09-30 | 2019-01-18 | 亚东石化(上海)有限公司 | Filter-press tail gas recovery device and method |
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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: 20121017 Termination date: 20121019 |
|
| C35 | Partial or whole invalidation of patent or utility model | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W105364 Conclusion of examination: Claim No. 201120398693.6 of the patent for utility model 1 is invalid, and the patent right shall continue to be valid on the basis of claim 2-8. Decision date of declaring invalidation: 20140721 Decision number of declaring invalidation: 23244 Denomination of utility model: Tail-gas purifying and recycling device and process of cover type bright annealing furnace system Granted publication date: 20121017 Patentee: Suzhou Xinsi Gas System Co.,Ltd. |