CN201501896U - Low-temperature converter gas residual heat utilization equipment - Google Patents
Low-temperature converter gas residual heat utilization equipment Download PDFInfo
- Publication number
- CN201501896U CN201501896U CN2009201753864U CN200920175386U CN201501896U CN 201501896 U CN201501896 U CN 201501896U CN 2009201753864 U CN2009201753864 U CN 2009201753864U CN 200920175386 U CN200920175386 U CN 200920175386U CN 201501896 U CN201501896 U CN 201501896U
- Authority
- CN
- China
- Prior art keywords
- gas
- converter
- coal
- valve
- house steward
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to steel making converter gas residual heat utilization field, in particular to an equipment capable of directly utilizing the converter gas in 200 DEG C after dry dedusting without the cooling process. The residual heat utilization equipment is characterized in that a converter dedusting device (3) is connected with a converter (1) through an evaporative cooling duct (2); the converter dedusting device (3) is connected with a gas recovery header pipe (12) sequentially through a tee valve (4) and a first valve bank (6); the gas recovery header pipe (12) is directly connected with a user pipeline (13) through a gas compressor (7); meanwhile, the gas recovery header pipe (12) is connected with a gas chamber (10), and a gas cooler (8) is arranged between the gas recovery header pipe (12) and the gas chamber (10); wherein, the connection mode is gas communication manner. As the low-temperature converter gas residual heat utilization equipment directly supplies the recycled gas in 200 DEG C for users, the equipment has energy and water saving effects and is adopted by a converter gas recycle utilization system to realize the importance of energy saving and emission reduction.
Description
Technical field
The utility model relates to a kind of coal gas of steel-smelting revolving furnace UTILIZATION OF VESIDUAL HEAT IN field, particularly with 200 ℃ coal gas of converter behind the dry method dust without cooling direct applied equipment.
Background technology
Converter steelmaking produces a large amount of flue gases, and the temperature of flue gas can contain a large amount of sensible heats up to 1450 ℃; Dustiness can be up to 150g/m in the flue gas
3, full iron can be up to more than 50% in the flue dust; Smelt the middle and later periods, the content of CO even can reach 80% up to more than 50% in the flue gas.As let alone to diffuse, will cause severe contamination to the environment of hundreds of sq-kms around the factory, thereby must the effective purification system of design.Meanwhile, its sensible heat, chemical energy, iron dust containing are huge resources, so be a very important job well with its recycling.But drop to 200 ℃ low temperature coal gas of converter for temperature after the dedusting, also need cool off and can not directly use.
The converter dedusting line that often uses has dry method, two kinds of systems of wet method now.The dry dedusting technology flow process is: flue gas enters gasification cooling flue and waste heat boiler and is cooled to 200 ℃ or add evaporative cooler with gasification cooling flue and be cooled to 200 ℃ and advance sack cleaner again or electrostatic precipitator is carried out smart dedusting indirectly.Then by air inducing equipment---axial blower enters the coal gas switching station, and underproof coal gas diffuses through diffusing the tower igniting; Qualified coal gas further enters gas recovery system after the cooling through gas cooler, send the user to use then, is used as fuel now mostly.
In the prior art, because coal gas of converter generally adopts the Wei Jinsi gas chamber, and then pressurization is used, the temperature of Wei Jinsi gas chamber tolerance is 70 ℃, so must can advance cabinet through gas cooler, increased water consumption, increased working cost, 200 ℃ of coal gas of converter drop to 65 ℃, go burning again, not only wasted waste heat, also reduced the calorific value of coal gas because of entering of water vapour.
Summary of the invention
The purpose of this utility model provides a kind of novel afterheat of converter gas and utilizes equipment, can directly use with 200 ℃ low temperature coal gas of converter behind the dry method dust without cooling.
To achieve these goals, the utility model provides following technical scheme:
A kind of low temperature afterheat of converter gas utilizes equipment, and it comprises:
The converter dust-removing device 3 that is connected with converter 1 through gasification cooling flue 2;
Converter dust-removing device 3 orders link to each other with coal-gas recovering house steward 12 through T-valve 4, the first valve group 6;
Coal-gas recovering house steward 12 directly uses pipeline 13 to link to each other with the user by gas compressor 7; Simultaneously, coal-gas recovering house steward 12 links to each other with gas chamber 10, between coal-gas recovering house steward 12 and the gas chamber 10 gas cooler 8 is arranged;
Wherein, described connection is the connection of gas communication.
Also has the second valve group 9 between gas cooler 8 and the gas chamber 10.
One of T-valve 4 goes out end and is connected with the first valve group 6, and another goes out to hold to diffuse tower 11 connections.
T-valve 4 through Bell jars 5 and the first valve group 6 with diffuse tower 11 and be connected.
The first valve group 6 is made up of the glasses valve+electric butterfly valve of 250 ℃ of heatproofs.
The second valve group 9 is made up of electric butterfly valve+glasses valve+electric butterfly valve.
Gas cooler 8 is provided with temperature control nozzle valve interlock 14 with coal-gas recovering house steward 12 connecting tube.
Gas compressor 7 is sealing press of anti-250 ℃ of temperature.
The beneficial effects of the utility model are:
Because directly 200 ℃ of coal gas that converter is recovered to are directly supplied with user's use, reduce the cooling demand of coal gas, reduced consumption, the reduction quantity of wastewater effluent of water, can reclaim gas heat to greatest extent again, reduce energy consumption, also improved the calorific value of coal gas of converter simultaneously.Simultaneously also reduce the requirement of gas chamber volumetrical, reduced the cost of investment of gas chamber.That this equipment has is energy-conservation, the effect of water saving, utilizes system to adopt in RECOVERY OF CONVERTER GAS and has the significance of energy-saving and emission-reduction.
Brief description of drawings
Fig. 1 is a device structure synoptic diagram of the present utility model.
Embodiment
The utility model provides a kind of direct recycling equipment of sensible heat that coal gas of steel-smelting revolving furnace reclaims that is applied to.In this equipment, each RECOVERY OF CONVERTER GAS pipeline links to each other with coal-gas recovering house steward 12 by a plurality of T-valve 4, Bell jar 5, the first valve group 6 respectively.Gas main 12 uses pipeline 13 and gas chamber 10 to constitute communicating state with the user simultaneously.
For the good above-mentioned three's of realization threeway state, use the direct recycling that utilizes gas compressor 7 to realize coal gas between pipeline 13 and the coal-gas recovering house steward 12 the user, save coal gas and reduced to 65 ℃ from 200 ℃, and then for the process of user's use.This equipment can fully reclaim the sensible heat of coal gas, owing to reduce entering of water vapour, has improved the calorific value of coal gas simultaneously.
In order to ensure that coal gas flows to the stability that the user uses, this equipment also links to each other gas chamber 10 with coal-gas recovering house steward 12 simultaneously, uses pipeline 13 to form threeway with the user.
And consider that again the recovery rate of coal gas of converter and user's coal gas use speed to exist certain difference.Therefore, use pipeline 13 and gas chamber 10 to form under the situation of threeways coal-gas recovering house steward 12 and user, gas chamber 10 with adding gas cooler 8 before coal-gas recovering house steward 12 links to each other.On this gas cooler 8 and coal-gas recovering house steward's 12 connecting tube, be provided with temperature control nozzle valve interlock 14.Can control the working order of gas cooler 8 inner nozzle valve groups 15 according to the gas temperature at gas cooler and coal-gas recovering house steward 12 contact mouth of pipe places by temperature control nozzle valve interlock 14.Open when the temperature control monitor in the temperature control nozzle valve interlock 14 detects the nozzle valve group of controlling gas cooler 8 when the piped gas temperature surpasses 150 ℃, make nozzle in running order; And when gas temperature was lower than 70 ℃, the nozzle valve group of control gas cooler was closed, and made nozzle be in off working state.Meanwhile in the contact pipeline of gas cooler 8 and gas chamber 10, add the second valve group 9, prepare against the cut-out that to finish when carrying out overhaul of the equipments between the equipment.
Coal-gas recovering house steward 12 with temperature control gas cooler 8 is set between gas chamber 10 is connected, be to be stored in the gas chamber 10 in order to realize when the coal-gas recovering amount in the converter surpasses user's coal gas usage quantity, coal gas more than needed to be reclaimed through temperature control gas cooler 8.Otherwise, can be when the coal-gas recovering amount in the converter 1 is lower than user's coal gas usage quantity with gas chamber 10 in the coal gas of storage, be transported to and send to the user among the coal-gas recovering house steward 12 again and use pipeline 13 to use for the user, guarantee the stability of user's coal gas use with this.
Below in conjunction with accompanying drawing a specific embodiment of the present utility model is described in further detail:
Referring to Fig. 1, present embodiment mainly by converter 1, gasification cooling flue 2, converter dust-removing device 3, T-valve 4, Bell jar 5, diffuse tower 11, the first valve group 6, coal-gas recovering house steward 12, gas cooler 8, the second valve group 9, gas chamber 10, gas compressor 7, user and use pipeline 13 etc. to form.
Present embodiment is 200 ℃ of afterheat of converter gas use devices of 3 60t/h converters of certain steel mill.
After present embodiment adopts converter 1 through gasification cooling flue 2 coolings, pass through converter dust-removing device 3 again, and then through T-valve 4, the coal gas that meets the coal-gas recovering index enters corresponding Bell jar 5 by three T-valve 4 respectively, enter coal-gas recovering house steward 12 through the first valve group 6 again, coal-gas recovering house steward 12 is communicated with gas cooler 8 simultaneously, and gas cooler 8 is directly realized being communicated with gas chamber 10 by the second valve group 9.Coal gas among the coal-gas recovering house steward 12 directly enters the user by 7,200 ° of pyritous coal gas of gas compressor and uses pipeline 13, directly uses for the user.The coal gas that does not meet the coal-gas recovering index simultaneously enters through Bell jar 5 and diffuses tower 11 and light and diffuse.
Gas compressor 7 needs to use the sealing press of anti-250 ℃ of temperature.
The first valve group 6 is made up of the glasses valve of 250 ℃ of heatproofs and electric butterfly valve, is used to cut off the path between relevant converter gas pipeline and the coal-gas recovering total pipeline 12, guarantees that each coal gas of converter cools off, the maintenance safety performance of dust-removal system.
The second valve group 9 is made up of electric butterfly valve, glasses valve, electric butterfly valve, is used to realize being communicated with and cut-out between gas chamber 10 and the coal gas cooling tower 8.And 9 of the second valve groups are closed in the repair time at gas chamber, and all the other times keep open states, make gas chamber 10 and coal-gas recovering house steward 12 and user use the threeway state of pipeline 13.
Coal-gas recovering house steward 12 is that each RECOVERY OF CONVERTER GAS pipeline is respectively through the pipeline that gathers after the Bell jar 5 and the first valve group 6.Coal-gas recovering house steward 12 directly is communicated with the user through gas compressor 7 and uses pipeline 13, removed the cooling storage process of coal gas from, the water consumption that has also reduced simultaneously gas cooler 8 reduces the use of water resources and the discharging and the processing pressure of waste water, has also reduced the use volume requirement of gas chamber 10.
The effect of gas cooler 8 is the coal gas surplus capacity that uses for the user among the coal-gas recovering house steward 12 to be lowered the temperature store in the gas chamber 10.Gas cooler 8 is the converter device of coal gas amount among gas chamber 10 supplies and the storage coal-gas recovering house steward 12, uses the stability of coal gas feed rate in the pipeline 13 to ensure the user.Simultaneously be provided with temperature control nozzle valve interlock 14 in the coal-gas recovering ingress of gas cooler 8, this device realizes that the nozzle valve in the gas cooler 8 is opened when this inlet gas temperature is higher than 150 ℃, and coal gas is cooled; And when this inlet gas temperature was lower than 70 ℃, the nozzle valve in the gas cooler 8 was closed, and coal gas was not cooled.Storage after having realized when coal-gas recovering house steward 12 stores coal gas in gas chamber 10 realizing 200 ℃ coal gas reduced to 65 degrees centigrade, and when gas chamber 10 in coal-gas recovering house steward 12 during supply coal gas gas cooler 8 only as communication apparatus.
Claims (8)
1. a low temperature afterheat of converter gas utilizes equipment, and it is characterized in that: it comprises:
The converter dust-removing device (3) that is connected with converter (1) through gasification cooling flue (2);
Converter dust-removing device (3) order links to each other with coal-gas recovering house steward (12) through T-valve (4), the first valve group (6);
Coal-gas recovering house steward (12) directly uses pipeline (13) to link to each other with the user by gas compressor (7); Simultaneously, coal-gas recovering house steward (12) links to each other with gas chamber (10), between coal-gas recovering house steward (12) and the gas chamber (10) gas cooler (8) is arranged;
Wherein, described connection is the connection of gas communication.
2. low temperature afterheat of converter gas according to claim 1 utilizes equipment, it is characterized in that: also have the second valve group (9) between gas cooler (8) and the gas chamber (10).
3. low temperature afterheat of converter gas according to claim 1 utilizes equipment, it is characterized in that: one of T-valve (4) goes out end and is connected with the first valve group (6), and another goes out to hold to diffuse tower (11) connection.
4. low temperature afterheat of converter gas according to claim 3 utilizes equipment, it is characterized in that: T-valve (4) through Bell jar (5) respectively with the first valve group (6) with diffuse tower (11) and be connected.
5. low temperature afterheat of converter gas according to claim 1 utilizes equipment, it is characterized in that: the first valve group (6) is made up of the glasses valve+electric butterfly valve of 250 ℃ of heatproofs.
6. low temperature afterheat of converter gas according to claim 2 utilizes equipment, it is characterized in that: the second valve group (9) is made up of electric butterfly valve+glasses valve+electric butterfly valve.
7. low temperature afterheat of converter gas according to claim 1 utilizes equipment, it is characterized in that: gas cooler (8) is provided with temperature control nozzle valve interlock (14) with coal-gas recovering house steward's (12) connecting tube.
8. low temperature afterheat of converter gas according to claim 1 utilizes equipment, it is characterized in that: gas compressor (7) is the sealing press of anti-250 ℃ of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201753864U CN201501896U (en) | 2009-08-27 | 2009-08-27 | Low-temperature converter gas residual heat utilization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201753864U CN201501896U (en) | 2009-08-27 | 2009-08-27 | Low-temperature converter gas residual heat utilization equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201501896U true CN201501896U (en) | 2010-06-09 |
Family
ID=42452833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201753864U Expired - Fee Related CN201501896U (en) | 2009-08-27 | 2009-08-27 | Low-temperature converter gas residual heat utilization equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201501896U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966522A (en) * | 2010-11-26 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Washing and cooling system for bottom of gas holder |
| CN105907915A (en) * | 2016-04-21 | 2016-08-31 | 中冶东方工程技术有限公司 | System and process of recycling and utilizing converter gas |
-
2009
- 2009-08-27 CN CN2009201753864U patent/CN201501896U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966522A (en) * | 2010-11-26 | 2011-02-09 | 中冶赛迪工程技术股份有限公司 | Washing and cooling system for bottom of gas holder |
| CN101966522B (en) * | 2010-11-26 | 2012-01-04 | 中冶赛迪工程技术股份有限公司 | Washing and cooling system for bottom of gas holder |
| CN105907915A (en) * | 2016-04-21 | 2016-08-31 | 中冶东方工程技术有限公司 | System and process of recycling and utilizing converter gas |
| CN105907915B (en) * | 2016-04-21 | 2018-04-24 | 中冶东方工程技术有限公司 | A kind of Revolving furnace coal gas recovery utilizing system and technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101584958B (en) | Movable desorption device of activated coke | |
| CN207727100U (en) | A kind of full recovery system of blast furnace top pressure-equalizing bleeding coal gas | |
| CN202511638U (en) | Device for recovering flue gas waste heat generated by industrial heat treatment | |
| CN102878822A (en) | Device and method for purifying and recycling furnace gas of hermetic ore smelting furnace | |
| CN103849705B (en) | RECOVERY OF CONVERTER GAS UTILIZATION OF VESIDUAL HEAT IN and minuteness particle purification system | |
| CN202139252U (en) | Spark collecting type cloth-bag purifying and recycling device using converter coal gas dry method | |
| CN201501896U (en) | Low-temperature converter gas residual heat utilization equipment | |
| CN201176445Y (en) | Converter coal gas high-temperature exhaust dust device with bag | |
| CN110283625A (en) | Supercritical water coal gasification apparatus and method | |
| CN111575435A (en) | Converter primary dry dedusting system and method for recycling ultra-clean coal gas | |
| CN202924954U (en) | Waste heat recycling system for coke oven gas primary cooler | |
| CN202666621U (en) | Dry method dust removal device of hermetic electric furnace and with high-temperature bypass devices | |
| CN212560337U (en) | Converter primary dry dedusting system for recycling ultra-clean coal gas | |
| CN105833688B (en) | The energy-saving clean tapping equipment of coke oven underground flue gas | |
| CN201348262Y (en) | Garbage furnace waste heat recycling device | |
| CN201419072Y (en) | Device for recovering active coke | |
| CN211178010U (en) | Condensate waste heat recovery system | |
| CN210261838U (en) | Processing system for diffused gas of blast furnace top charging bucket | |
| CN114106892A (en) | Blast furnace gas low-temperature dry-method fine desulfurization system and method | |
| CN204174154U (en) | Environment-friendly coke-quenching apparatus steam heat recovery tower | |
| CN203403124U (en) | All-dry method bag type recycling and purifying technology system for converter gas | |
| CN203364629U (en) | System for recycling exhaust gas waste heat of rotary kiln of alumina plant | |
| CN102559991B (en) | State transition device capable of achieving uninterrupted heat energy output and utilization for steelmaking converter | |
| CN202666622U (en) | Inclosed electric furnace dry method dust removing device | |
| CN201390760Y (en) | Gas flue absolute-dry type purification recovery utilization device of steel-making converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100083 Beijing City, Haidian District Xueyuan Road No. 30 Fangxing building a district 10 room 1001 Patentee after: Beijing bpbk energy-saving environmental protection Limited by Share Ltd Address before: 100083 Beijing City, Haidian District Xueyuan Road District No. 30 Fangxing building room 702 Patentee before: Beijing Bopeng Beike Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20180827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |