CN202187023U - Recycling device for converter coal gas diffused in steelmaking - Google Patents
Recycling device for converter coal gas diffused in steelmaking Download PDFInfo
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- CN202187023U CN202187023U CN201120230373XU CN201120230373U CN202187023U CN 202187023 U CN202187023 U CN 202187023U CN 201120230373X U CN201120230373X U CN 201120230373XU CN 201120230373 U CN201120230373 U CN 201120230373U CN 202187023 U CN202187023 U CN 202187023U
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- coal gas
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- frequency conversion
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Abstract
The utility model discloses a recycling device for converter coal gas diffused in steelmaking, belonging to the technical field of converter coal gas recycling. The recycling device comprises a heat value analyzer, an oxygen analyzer, a three-way valve, a check valve, a coal gas regulating valve and a frequency conversion blower. The oxygen content analyzer and the heat value analyzer are arranged on an incoming flow entrance of the three-way valve; the oxygen content analyzer and the heat value analyzer are horizontally parallel to each other; one exit of the three-way valve is connected with a diffusing chimney and another exit of the three-way valve is connected with the coal gas regulating valve; the entrance of the coal gas regulating valve is connected with the three-way valve and the exit of the coal gas regulating valve is connected with the check valve; the entrance of the check valve is connected with the coal gas regulating valve and exit thereof is connected with the frequency conversion blower; the entrance of the frequency conversion blower is connected with the check valve and the exit of the frequency conversion blower is connected with a blast furnace coal gas pipe network. The diffused converter coal gas with a heat value bigger than a certain set value and an oxygen content satisfying the requirement is brought into the blast furnace coal gas pipe network, and the frequency conversion blower regulates the diffused converter coal gas pressure according to the blast furnace coal gas pipe network pressure, and switches the diffused converter coal gas into the blast furnace coal gas pipe network pressure to supplement the shortage of blast furnace coal gas. The utility model achieves gradient utilization and development on energy sources.
Description
Technical field
The utility model belongs to the RECOVERY OF CONVERTER GAS technical field, and the RECOVERY OF CONVERTER GAS use device is diffused in particularly a kind of steel-making.
Background technology
It is the emphasis of current domestic iron and steel enterprises energy conservation that coal gas of steel-smelting revolving furnace reclaims.The calorific value of coal gas of converter is higher, is the important component part of iron and steel enterprise's coal gas resource, is the important step that realizes that negative converter can be made steel.The effective recycling of coal gas of converter both can energy efficiency, and environmental benefit is arranged again.
At present, both at home and abroad the mode to the recycling of coal gas of converter mainly is to utilize OG or LT systems incorporate converter gas cabinet to reclaim coal gas of converter, and the coal gas of converter of recovery supplies the user to use according to customer need.At present, the coal gas of converter that reclaims according to this RECOVERY OF CONVERTER GAS mode receives the restriction of converter gas cabinet safety requirements, makes the coal gas of converter of part high heating value diffused processing, has caused the waste of the energy.According to the principle that energy cascade development utilizes, this part diffuses coal gas of converter and still has high utility value in other field.The recovery and utilization technology that diffuses coal gas of converter can greatly improve the service efficiency of the energy, is a novel power-saving technology, in constantly improving;
Existing converter gas recovery system is from the consideration of converter gas cabinet for security, and CO concentration is controlled at more than 30% in the coal gas of converter, and O2 concentration is controlled at below 2%, and the coal gas of converter that does not meet above requirement directly diffuses.And this moment, this part mean calorie of diffusing coal gas of converter approximately also had 1000Kcal, and wherein oxygen level is less than 2%, and calorific value reclaims the potentiality of 10m3 at least in addition greater than the coal gas of converter ton steel of 600Kcal.Existing RECOVERY OF CONVERTER GAS utilizes system that following subject matter is arranged: 1. high to coal gas CO and O2 concentration requirement, and cause coal gas of converter to can not get abundant recovery.2. too high when the gas chamber position, in the time of can't continuing to reclaim coal gas of converter, all coal gas of converter all must diffuse, and cause energy dissipation serious.3. because the intermittent problems of RECOVERY OF CONVERTER GAS is diffused coal gas of converter even cause having reclaimed this part, existing system also can't steady and continuous utilizes this part energy.
Summary of the invention
The purpose of the utility model is to provide a kind of steel-making to diffuse the RECOVERY OF CONVERTER GAS use device; Under the normal operation that does not influence converter steelmaking and existing converter gas recovery system; Through diffusing the RECOVERY OF CONVERTER GAS device; Part is diffused coal gas of converter introduce blast furnace gas pipeline network, efficiently utilized this part to diffuse coal gas of converter, realized the cascade development utilization of coal gas of converter.
The technical scheme of the utility model:
The utility model comprises oxygen analysis appearance, calorific value analyser, T-valve, reverse checkvalve, gas regulator, frequency conversion fan.Oxygen analysis appearance and calorific value analyser are arranged in T-valve incoming flow ingress; Oxygen analysis appearance and calorific value analyser horizontal parallel are arranged; T-valve one outlet is ined succession and is diffused chimney, another outlet gas regulator of ining succession; The gas regulator inlet is connected with T-valve, and the gas regulator outlet is connected with reverse checkvalve; The reverse checkvalve inlet is connected with gas regulator, and the reverse checkvalve outlet is connected with frequency conversion fan; The frequency conversion fan inlet is connected with reverse checkvalve, and the frequency conversion fan outlet is connected with blast furnace gas pipeline network.
Coal gas of converter diffuses through diffusing chimney through once reclaiming the undesirable coal gas in back, and through being arranged on the T-valve that diffuses before the chimney, less than 2%, calorific value is recycled greater than the part introducing blast furnace gas pipeline network that diffuses of 600kcal with oxygen level.
The oxygen level that T-valve before diffusing chimney is introduced is less than 2%, and calorific value diffuses the pressure condition of coal gas of converter according to blast furnace gas pipeline network greater than 600kcal's, introduces blast furnace gas pipeline network through frequency conversion fan pressurization back, supplies blast furnace gas user use.
The utility model has the technological improvement of 2 innovations: the one, through being arranged on T-valve, oxygen analysis appearance and the calorific value analyser that diffuses before the chimney; The coal gas of converter that diffuses is reclaimed by oxygen level and calorific value requirement; Under the prerequisite that guarantees the safe in utilization and effective utilization of coal gas, make the yield of coal gas of converter be improved.The 2nd, according to the pressure condition of blast furnace gas pipeline network,, the coal gas of converter that diffuses that reclaims is pressurizeed through regulating the frequency conversion fan rotating speed, make the blast furnace gas pipeline network that infeeds that it can be stable.
The obtainable benefit of the utility model is: need not change in a large number original converter gas recovery system; Diffuse converter gas recovery system as long as set up a cover steel-making; The yield of coal gas of converter will improve a lot, and blast furnace gas also can obtain more competent supply simultaneously.The utility model has carried out important improvement to existing converter gas recovery system, has important use and promotional value.
Description of drawings
Fig. 1 is a kind of structure iron of the utility model.Wherein, oxygen analysis appearance 1, calorific value analyser 2, T-valve 3, gas regulator 4, reverse checkvalve 5, frequency conversion fan 6.
Embodiment
Fig. 1 is a kind of embodiment of the utility model.
The utility model comprises oxygen analysis appearance 1, calorific value analyser 2, T-valve 3, gas regulator 4, reverse checkvalve 5, frequency conversion fan 6.Oxygen analysis appearance 1 is arranged in T-valve 3 incoming flow ingress with calorific value analyser 2; Oxygen analysis appearance 1 is arranged with calorific value analyser 2 horizontal parallel; T-valve 3 one outlet is ined succession and is diffused chimney, another outlet gas regulator 4 of ining succession; Gas regulator 4 inlets are connected with T-valve 3, and outlet is connected with reverse checkvalve 5; Reverse checkvalve 5 inlets are connected with gas regulator 4, and outlet is connected with frequency conversion fan 6; Frequency conversion fan 6 inlets are connected with reverse checkvalve 5, and outlet is connected with blast furnace gas pipeline network.
Diffuse the coal gas of converter oxygen level less than 2% when oxygen analysis appearance and calorific value analyser detect, calorific value is during greater than 600kcal, diffuse T-valve before the chimney with this part coal gas of converter through gas regulator; Reverse checkvalve; Frequency conversion fan is introduced blast furnace gas pipeline network, supplies the blast furnace gas user to use.Frequency conversion fan is according to the pressure condition of blast furnace gas pipeline network, and this part is diffused the coal gas of converter pressurization, makes the blast furnace gas pipeline network that infeeds that it can be stable.
Claims (1)
1. the RECOVERY OF CONVERTER GAS use device is diffused in a steel-making, comprising: oxygen analysis appearance (1), calorific value analyser (2), T-valve (3), gas regulator (4), reverse checkvalve (5), frequency conversion fan (6); It is characterized in that oxygen analysis appearance (1) is arranged in T-valve (3) incoming flow ingress with calorific value analyser (2); Oxygen analysis appearance (1) is arranged with calorific value analyser (2) horizontal parallel; T-valve (3) one outlet is ined succession and is diffused chimney, another outlet gas regulator (4) of ining succession; Gas regulator (4) inlet is connected with T-valve (3), and gas regulator (4) outlet is connected with reverse checkvalve (5); Reverse checkvalve (5) inlet is connected with gas regulator (4), and reverse checkvalve (5) outlet is connected with frequency conversion fan (6); Frequency conversion fan (6) inlet is connected with reverse checkvalve (5), and frequency conversion fan (6) outlet is connected with blast furnace gas pipeline network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120230373XU CN202187023U (en) | 2011-06-30 | 2011-06-30 | Recycling device for converter coal gas diffused in steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120230373XU CN202187023U (en) | 2011-06-30 | 2011-06-30 | Recycling device for converter coal gas diffused in steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187023U true CN202187023U (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120230373XU Expired - Fee Related CN202187023U (en) | 2011-06-30 | 2011-06-30 | Recycling device for converter coal gas diffused in steelmaking |
Country Status (1)
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| CN (1) | CN202187023U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978333A (en) * | 2012-11-19 | 2013-03-20 | 首钢总公司 | System and method for converter gas recovery |
| CN104727983A (en) * | 2015-03-16 | 2015-06-24 | 山东钢铁股份有限公司 | System for recovering coal gas diffused in gas power generation production process |
| CN107763436A (en) * | 2017-11-30 | 2018-03-06 | 北京首钢国际工程技术有限公司 | A kind of coking desulfurization regenerator exhaust treatment system pipeline |
| CN113308592A (en) * | 2021-04-16 | 2021-08-27 | 唐山不锈钢有限责任公司 | Device and method for improving recovery amount of coal gas of steelmaking converter |
-
2011
- 2011-06-30 CN CN201120230373XU patent/CN202187023U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978333A (en) * | 2012-11-19 | 2013-03-20 | 首钢总公司 | System and method for converter gas recovery |
| CN102978333B (en) * | 2012-11-19 | 2014-08-27 | 首钢总公司 | System and method for converter gas recovery |
| CN104727983A (en) * | 2015-03-16 | 2015-06-24 | 山东钢铁股份有限公司 | System for recovering coal gas diffused in gas power generation production process |
| CN107763436A (en) * | 2017-11-30 | 2018-03-06 | 北京首钢国际工程技术有限公司 | A kind of coking desulfurization regenerator exhaust treatment system pipeline |
| CN113308592A (en) * | 2021-04-16 | 2021-08-27 | 唐山不锈钢有限责任公司 | Device and method for improving recovery amount of coal gas of steelmaking converter |
| CN113308592B (en) * | 2021-04-16 | 2022-09-16 | 唐山不锈钢有限责任公司 | Device and method for improving recovery amount of coal gas of steelmaking converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |
|
| 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: 20120411 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |