CN203980927U - Combined cycle afterheat generating system - Google Patents
Combined cycle afterheat generating system Download PDFInfo
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- CN203980927U CN203980927U CN201420393029.6U CN201420393029U CN203980927U CN 203980927 U CN203980927 U CN 203980927U CN 201420393029 U CN201420393029 U CN 201420393029U CN 203980927 U CN203980927 U CN 203980927U
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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
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Abstract
The utility model discloses a kind of combined cycle afterheat generating system, it comprises converter saturated vapor device A, storage heater, sintering exhaust-heat boiler, sub-cylinder, additional combustion boiler superheater, Turbo-generator Set and coal gas of converter afterburning system, described converter saturated vapor device A is communicated with storage heater by pipeline, described storage heater, sintering exhaust-heat boiler is communicated with sub-cylinder respectively by pipeline, described sub-cylinder is communicated with additional combustion boiler superheater by pipeline, described additional combustion boiler superheater is communicated with Turbo-generator Set by pipeline, described coal gas of converter afterburning system is communicated with additional combustion boiler superheater by pipeline, combined cycle afterheat generating system of the present utility model, the fuel gas that the useless flue gas of converter contains cannot rationally be recycled, in smelting iron and steel industry the inside, the flue gas of converter is carried out to combined cycle first and obtain secondary utilization, for enterprise, society have saved a large amount of capable of recovering energy sources, ensure the reasonable, reliable of bootstrap system.
Description
Technical field
The utility model relates to cogeneration field, particularly relates to the fume afterheat combined cycle cogeneration field in a kind of pneumatic steelmaking, sintered ironmaking technique.
Background technology
Converter steelmaking process in steel industry is taking molten iron, steel scrap, ferroalloy as primary raw material, not by external energy, by between the physical thermal of high temperature liquid iron itself and molten iron component with the chemical reaction generation heat of oxygen etc. and complete steelmaking process in converter.
Converter current steel-making is generally to complete steel-making object by the technical matters mode of oxygen top blown.Oxygen top blown converter steel making apparatus and process, according to batching requirement, first packs part steel scrap etc. in stove into, then pours the high temperature liquid iron that part is produced from blast furnace process into, and adds appropriate slag making materials (as quick lime etc.).After reinforced, oxygen lance is inserted in stove from furnace roof, be blown into oxygen (the hyperbaric oxygen air-flow that purity is greater than 99%), make it directly with element generation oxidation reactions such as the carbon containing in the molten iron of high temperature, reach and remove the object such as impurity, reduction phosphorus content.After remove portion carbon and most of sulphur, phosphorus, in the time that the composition of molten steel and temperature all reach requirement, after verification test molten steel is qualified, can water into foundry goods or the steel ingot of steel, steel ingot can be rolled into various steel again.Oxygen top-blown converter can produce a large amount of brown flue gases in steelmaking process, and its main component is carbon monoxide (CO) gas of iron oxide grit and high concentration etc.Therefore, must be purified recovery, comprehensive utilization, to prevent contaminated environment.The iron oxide grit obtaining from reclaimer can be used for making steel; Carbon monoxide (CO) can be made industrial chemicals or fuel; The heat that flue gas is taken out of can by-product steam.
And the by-product steam that the pneumatic steelmaking of annual iron and steel enterprise produces, in the winter time time, part steam can be used as the thermal source such as heating of production, life, all the other can only discharge sky, and when summer, steam can only be discharge completely and cannot utilize, and has caused very large energy waste; The flue gas of converter contains carbon monoxide (CO) gas, content is 60 ~ 80%, because coal gas of converter calorific value is lower, utilize difficulty large, and converter periodically smelts, make to collect coal gas of converter difficulty also large, cost is also high, so a lot of enterprises are all direct discharges to the flue gas of converter, and rationally do not utilize, this has just caused a large amount of energy wastes.
Raw material-sintered iron ore that blast furnace is used in the technique of smelting molten iron is that the iron ore coming from mine extraction obtains by entering sintering machine sintering after pulverizing, selecting and purchasing.In the technical process of sintering, the process of cooling sintering lump ore can produce a large amount of middle low-temperature flue gas (200 DEG C-600 DEG C), because main component and the differential air of sinter fume are few, so most of enterprise directly discharges this part flue gas afterwards through mixing air.This has just caused a large amount of waste heats not to be utilized effectively, and has wasted a large amount of residual heat resources.
Existing technical scheme is after converter saturated vapor system produces the saturated vapor of 1.6 ± 0.2MPa, winter, steam was used for the heating of producing, living, also as boiling thermal source, the life bath of life, remaining steam enters muffler discharge by diffuse channel; The coal gas of converter that contains the fuel gas such as carbon monoxide (CO) after cooling through converter vapourization cooling system, also without recycling, but a large amount of energy has been wasted in directly discharge; During sintering machine is produced, the sinter fume after cooling material does not pass through any heat recovery, but enters atmosphere by entering chimney after mixed cold wind, not only environment has been caused to thermal pollution, has wasted a large amount of heat energy yet.
Utility model content
The purpose of this utility model is to provide a kind of combined cycle afterheat generating system, in order to solve the defect of above-mentioned prior art.
In order to achieve the above object, technical scheme provided by the utility model is: a kind of combined cycle afterheat generating system, it comprises converter saturated vapor device A, storage heater, sintering exhaust-heat boiler, sub-cylinder, additional combustion boiler superheater, Turbo-generator Set and coal gas of converter afterburning system, described converter saturated vapor device A is communicated with storage heater by pipeline, described storage heater, sintering exhaust-heat boiler is communicated with sub-cylinder respectively by pipeline, described sub-cylinder is communicated with additional combustion boiler superheater by pipeline, described additional combustion boiler superheater is communicated with Turbo-generator Set by pipeline, described coal gas of converter afterburning system is communicated with additional combustion boiler superheater by pipeline,
Described coal gas of converter afterburning system comprises converter, converter saturated vapor device B, gas chamber and additional combustion boiler, described converter is communicated with converter saturated vapor device B by pipeline, described converter saturated vapor device B is communicated with gas chamber by pipeline, described gas chamber is communicated with additional combustion boiler by pipeline, and described additional combustion boiler is communicated with additional combustion boiler superheater by pipeline.
Adopt technique scheme, technique effect of the present utility model has: combined cycle afterheat generating system of the present utility model, overcome that sintering process fume afterheat in process for making cannot rationally be reclaimed, converter vapourization cooling system saturated vapor cannot rationally be utilized, the fuel gas that the useless flue gas of converter contains cannot rationally be recycled, in smelting iron and steel industry the inside, the flue gas of converter is carried out to combined cycle first and obtain secondary utilization, for enterprise, society have saved a large amount of capable of recovering energy sources, ensure the reasonable, reliable of bootstrap system.In rationally having reclaimed the toxic combustible gas carbon monoxide that converter gas contains, benefit human society.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model;
Wherein: 1, converter saturated vapor device A 2, storage heater 3, sintering exhaust-heat boiler 4, sub-cylinder 5, additional combustion boiler superheater 6, Turbo-generator Set 7, coal gas of converter afterburning system 71, converter 72, converter saturated vapor device B 73, gas chamber 74, additional combustion boiler.
Detailed description of the invention
Below in conjunction with brief description of the drawings detailed description of the invention of the present utility model.
As shown in Figure 1, theory diagram of the present utility model, it comprises converter saturated vapor device A1, storage heater 2, sintering exhaust-heat boiler 3, sub-cylinder 4, additional combustion boiler superheater 5, Turbo-generator Set 6 and coal gas of converter afterburning system 7, the effect of converter saturated vapor device A1 is to produce saturated vapor, the gas outlet of converter saturated vapor device A1 is communicated with the air inlet of storage heater 2 by pipeline, the gas outlet of storage heater 2, the gas outlet of sintering exhaust-heat boiler 3 is communicated with the air inlet of sub-cylinder 4 respectively by pipeline, the gas outlet of sub-cylinder 4 is communicated with the air inlet of additional combustion boiler superheater 5 by pipeline, the saturated vapor gas outlet of additional combustion boiler superheater 5 is communicated with Turbo-generator Set 6 by pipeline, coal gas of converter afterburning system 7 is communicated with the air inlet of additional combustion boiler superheater 5 by pipeline, coal gas of converter afterburning system 7 comprises converter 71, converter saturated vapor device B72, gas chamber 73 and additional combustion boiler 74, the gas outlet of converter 71 is communicated with the air inlet of converter saturated vapor device B72 by pipeline, the gas outlet of converter saturated vapor device B72 is communicated with the air inlet of gas chamber 73 by pipeline, the effect of converter saturated vapor device B72 is cooling converter gas, the gas outlet of gas chamber 73 is communicated with the air inlet of additional combustion boiler 74 by pipeline, and the gas outlet of additional combustion boiler 74 is communicated with the air inlet of additional combustion boiler superheater 5 by pipeline.
Operation principle of the present utility model is: the saturated vapor of 1.6 ± 0.2MPa that converter saturated vapor device A1 produces enters storage heater 2, storage heater 2 is 1.0 ± 0.1MPa by saturated vapor parameter adjustment, enter sub-cylinder 4, meanwhile, 1.0 ± 0.1MPa saturated vapor that sintering exhaust-heat boiler 3 produces also enters sub-cylinder 4, two strands of saturated vapors are after mixing, enter additional combustion boiler superheater 5, it is overheated to carry out, saturated vapor parameter becomes 1.0 ± 0.1MPa, the superheated steam of 270 ° ± 10 DEG C, entering Turbo-generator Set 6 generates electricity, the coal gas of converter that the converter 71 of coal gas of converter afterburning system 7 produces enters converter saturated vapor device B72 by pipeline and carries out cooling, then, entering gas chamber 73 stores, in gas chamber 73, be mainly carbon monoxide, the coal gas of converter of gas chamber 73 interior storages enters additional combustion boiler 74 by pipeline, fuel as additional combustion boiler 74 uses, additional combustion boiler 74 is that additional combustion boiler superheater 5 supplements steam.
Combined cycle afterheat generating system of the present utility model, overcome that sintering process fume afterheat in process for making cannot rationally be reclaimed, converter vapourization cooling system saturated vapor cannot rationally be utilized, the fuel gas that the useless flue gas of converter contains cannot rationally be recycled, in smelting iron and steel industry the inside, the flue gas of converter is carried out to combined cycle first and obtain secondary utilization, for enterprise, society have saved a large amount of capable of recovering energy sources, ensure the reasonable, reliable of bootstrap system.In rationally having reclaimed the toxic combustible gas carbon monoxide that converter gas contains, benefit human society.
Finally it should be noted that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (1)
1. a combined cycle afterheat generating system, it is characterized in that: it comprises converter saturated vapor device A(1), storage heater (2), sintering exhaust-heat boiler (3), sub-cylinder (4), additional combustion boiler superheater (5), Turbo-generator Set (6) and coal gas of converter afterburning system (7), described converter saturated vapor device A(1) be communicated with storage heater (2) by pipeline, described storage heater (2), sintering exhaust-heat boiler (3) is communicated with sub-cylinder (4) respectively by pipeline, described sub-cylinder (4) is communicated with additional combustion boiler superheater (5) by pipeline, described additional combustion boiler superheater (5) is communicated with Turbo-generator Set (6) by pipeline, described coal gas of converter afterburning system (7) is communicated with additional combustion boiler superheater (5) by pipeline,
Described coal gas of converter afterburning system (7) comprises converter (71), converter saturated vapor device B(72), gas chamber (73) and additional combustion boiler (74), described converter (71) is by pipeline and converter saturated vapor device B(72) be communicated with, described converter saturated vapor device B(72) be communicated with gas chamber (73) by pipeline, described gas chamber (73) is communicated with additional combustion boiler (74) by pipeline, and described additional combustion boiler (74) is communicated with additional combustion boiler superheater (5) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393029.6U CN203980927U (en) | 2014-07-16 | 2014-07-16 | Combined cycle afterheat generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393029.6U CN203980927U (en) | 2014-07-16 | 2014-07-16 | Combined cycle afterheat generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980927U true CN203980927U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420393029.6U Expired - Fee Related CN203980927U (en) | 2014-07-16 | 2014-07-16 | Combined cycle afterheat generating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466827A (en) * | 2022-08-29 | 2022-12-13 | 武汉钢铁有限公司 | Double-plant three-unit combined heat storage RH vacuum refining steam system |
-
2014
- 2014-07-16 CN CN201420393029.6U patent/CN203980927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466827A (en) * | 2022-08-29 | 2022-12-13 | 武汉钢铁有限公司 | Double-plant three-unit combined heat storage RH vacuum refining steam system |
| CN115466827B (en) * | 2022-08-29 | 2023-08-18 | 武汉钢铁有限公司 | Double-factory three-unit combined heat storage RH vacuum refining steam system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100080 Beijing city Haidian District minzhuang Road No. 3 Building No. 11 Room 102 West Yuquan Huigu Patentee after: BEIJING ZHONGKE INNOVATION PARK TECHNOLOGY CO.,LTD. Address before: 100080 room 1615, earth science and technology building, No. 67, North four Ring West Road, Haidian District, Beijing Patentee before: Beijing Zhongke Innovation Park Environment Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 |