CN202467949U - Coke oven smoke waste-heat power generation system - Google Patents
Coke oven smoke waste-heat power generation system Download PDFInfo
- Publication number
- CN202467949U CN202467949U CN2012200722019U CN201220072201U CN202467949U CN 202467949 U CN202467949 U CN 202467949U CN 2012200722019 U CN2012200722019 U CN 2012200722019U CN 201220072201 U CN201220072201 U CN 201220072201U CN 202467949 U CN202467949 U CN 202467949U
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- China
- Prior art keywords
- coke oven
- flue gas
- waste heat
- drum
- generating system
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Coke Industry (AREA)
Abstract
The utility model relates to a coke oven smoke waste-heat power generation system, which comprises a coke oven, a chimney, a waste heat recovery device and a power generation device. The coke oven comprises a smoke outlet. The waste heat recovery device is used for recycling waste heat in smoke of the coke oven, one end of the waste heat recovery device is connected with the smoke outlet, and the other end of the waste heat recovery device is connected with the chimney. The power generation device is used for converting the heat recycled by the waste heat recovery device to power energy and is connected with the waste heat recovery device. The coke oven smoke waste-heat power generation system has the advantages of being capable of effectively recycling the waste heat in the smoke of the coke oven and reducing energy consumption.
Description
Technical field
The utility model relates to a kind of UTILIZATION OF VESIDUAL HEAT IN equipment, is specifically related to a kind of coke oven flue gas afterheat generating system.
Background technique
Coking coal is heated to (high temperature carbonization) about 1000 ℃ through gas firing, and the manufacturing process that produces coke, coke-stove gas and coking chemistry product through thermolysis and coking is called coking.The metallurgical coke carbon content is high, and the porosity is high, and intensity big (particularly hot strength) is the important fuel and the reducing agent of blast furnace ironmaking, also is the proppant and the raising agent of whole blast furnace stock column.The coke-stove gas calorific capacity of coking by-product is high, is the excellent gas fuel of open hearth and oven, is the important energy component in Steel Complex.The coking chemistry product is an important chemical material.Therefore coking production is an important step of modern steel industry.
The flue gas that gas firing produces through flue compile the back by stack emission in atmosphere, the temperature through the flue gas of stack emission in the atmosphere is very high in fact, directly discharging causes energy waste.
The model utility content
The purpose of the utility model provides a kind of coke oven flue gas afterheat generating system, utilizes the coke oven flue gas waste heat to generate electricity, and the waste heat of the flue gas that coke oven combustion is produced is effectively recycled.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of coke oven flue gas afterheat generating system comprises:
Coke oven comprises smoke outlet;
Chimney;
The waste heat recovering device that the furnace flue gas exhaust heat that is used to focus reclaims, an end is connected with said smoke outlet, and the other end is connected with said chimney;
Be used for the heat energy that said waste heat recovering device reclaims is converted into the electricity generating device of electric energy.
Further, said waste heat recovering device is an exhaust heat boiler, and an end of said exhaust heat boiler is connected with the smoke outlet of coke oven, and the other end is connected with chimney through blower fan.
Further, said exhaust heat boiler comprises housing, and is arranged on steam raising plant in the said housing, that be used to produce steam.
Further; Said steam raising plant comprises economizer, drum, vaporizer and superheater; One end of said economizer is connected with feed water pump, and the other end of said economizer is connected with said drum, is provided with the first passage that is used for the hot water of said economizer heating is delivered to said vaporizer between said drum and the said vaporizer; And the second channel that the saturated vapour that said vaporizer produces is recycled to drum; One end of said superheater is connected with said drum, and the other end of said superheater is connected with said electricity generating device, is used for the superheated vapor that produces is delivered to said electricity generating device generating.
Further, said electricity generating device comprises steam turbine and generator, and said steam turbine is that said generator provides power through the heat energy that said waste heat recovering device reclaims.
Further, be provided with the clean water treatment apparatus that is used to carry out dedusting, deoxygenation or other cleaning between said economizer and the said feed water pump.
Further, be provided with urgent discharge flue between the smoke outlet of said coke oven and the said chimney.
Further, said urgent discharge flue is provided with Safety valve.
The beneficial effect of the utility model is: the focusing furnace flue gas exhaust heat is effectively recycled, and cuts down the consumption of energy.
Description of drawings
Fig. 1 representes the utility model structural representation.
Reference character: 1, coke oven, 2, gas storage cabinet, 3, urgent discharge flue, 4, Safety valve, 5, exhaust heat boiler; 51, economizer, 52, drum, 53, vaporizer, 54, superheater, 6, steam turbine; 7, generator, 8, feed water pump, 9, blower fan, 10, chimney.
Embodiment
Below in conjunction with accompanying drawing the utility model structure and principle are elaborated, the embodiment that lifts only is used to explain the utility model, is not the protection domain that limits the utility model with this.
As shown in Figure 1, a kind of coke oven flue gas afterheat generating system comprises coke oven 1 and chimney 10, also comprises:
The waste heat recovering device that the furnace flue gas exhaust heat that is used to focus reclaims, an end of said waste heat recovering device is connected with the smoke outlet of said coke oven 1, and the other end is connected with said chimney 10;
Be used for the heat energy that said waste heat recovering device reclaims is converted into electricity generating device electric energy, that be connected with said waste heat recovering device.
Waste heat recovering device described in the present embodiment preferred implementation adopts exhaust heat boiler 5, and an end of said exhaust heat boiler 5 is connected with the smoke outlet of coke oven 1, and the other end is connected with chimney 10 through blower fan 9.
Said exhaust heat boiler 5 comprises housing, and is arranged on steam raising plant in the said housing, that be used to produce steam.
Said steam raising plant comprises economizer 51, drum 52, vaporizer 53 and superheater 54; One end of said economizer 51 is connected with feed water pump 8; The other end of economizer 51 is connected with said drum 52; Be provided with the first passage that is used for the hot water of said economizer 51 heating is delivered to said vaporizer 53 between said drum 52 and the said vaporizer 53; Also be provided with the second channel that is used for the saturated vapour that said vaporizer 53 produces is delivered to drum 52 between said drum 52 and the said vaporizer 53, said first passage and said second channel make and form vapour-water-flow circuit between said drum 52 and the said vaporizer 53 that said superheater 54 1 ends are connected with said drum 52; The other end of superheater 54 is connected with said electricity generating device, is used for the superheated vapor that produces is delivered to said electricity generating device generating.
Said drum 52 is delivered to said vaporizer 53 through first passage with hot water, and said drum 52 plays the effect of water storage, current stabilization, so that the better utilization fume afterheat; Said vaporizer 53 is delivered to said drum 52 through second channel with saturated vapour; The saturated vapour here is actual to be steam water interface; Said drum 52 carries out carbonated drink separation with it; Then isolated saturated vapour is delivered to said superheater 54, saturated vapour is delivered to electricity generating device realization generating through the thermosetting superheated vapor that adds of superheater 54.
In order to increase hot area, more efficient use coke oven flue gas waste heat, the said economizer 51 of the utility model, said superheater 54 all adopt the broken line type pipeline through repeatedly being bent to form.
Said electricity generating device comprises steam turbine 6 and generator 7, and said steam turbine 6 rotates through the superheated vapor that said superheater 54 provides, thereby drives said generator 7 generatings.
In order to prevent that equipment in the exhaust heat boiler 5 is corroded or stops up, and is provided with the clean water treatment apparatus that is used to carry out cleaning such as dedusting, deoxygenation between said economizer 51 and the said feed water pump 8.
The main component of coke oven flue gas is a hydrogen; There is the characteristic that can blast under the finite concentration in hydrogen; If smoke evacuation has some setbacks, be easy to blast, so can be provided with urgent discharge flue 3 between the smoke outlet of coke oven described in the present embodiment 1 and the said chimney 10.Said urgent discharge flue 3 is provided with Safety valve 4.Under coke oven flue gas afterheat generating system running state, because the unexpected jumping of blower fan 9 stops, and the smoke evacuation that causes is not smooth in order to prevent; Said Safety valve 4 is in open mode; But in order effectively to recycle fume afterheat, the aperture of said Safety valve 4 is very little, when blower fan 9 quits work suddenly; Again said Safety valve 4 is opened rapidly fully, made flue gas pass through chimney row to atmosphere.
Below the utility model coke oven flue gas afterheat generating system is elaborated.
Coke oven flue gas flows to as follows:
Air draught effect through blower fan 9; Coke oven flue gas gets in the housing of exhaust heat boiler 5; Coke oven flue gas passes through economizer 51, drum 52, vaporizer 53, superheater 54 in the housing successively at exhaust heat boiler 5; And carrying out heat exchange with medium in it, the coke oven flue gas after the cooling flows to chimney 10 through blower fan 9, discharges through chimney 10.
The process that exhaust heat boiler is recycled the coke oven flue gas waste heat is following:
Feed water pump 8 will pass through the cold water that clean water treatment apparatus carries out after the cleaning and deliver to economizer 51; Cold water in the economizer 51 and coke oven flue gas carry out heat exchange and become hot water entering drum 52; Hot water gets into vaporizer 53 through drum 52, and hot water gets into drum 52 after in vaporizer 53, becoming steam water interface once more, carries out carbonated drink separation via the water separator in the said drum 52; Isolated saturated vapour gets into superheater 54 and adds the thermosetting superheated vapor once more; Superheated vapor is that steam turbine 6 provides power, and steam turbine 6 operations are generated electricity thereby drive generator 7.
In the existing coking industry, after coking coal receives gas firing heating destructive distillation, the by-product coke-stove gas that produces coke is collected in the coke-stove gas storage cabinet 2; A part continues on for heating coking coal; Another part is supplied with outside as other purposes, and coke oven flue gas is then directly arranged to atmosphere through chimney, and the heat energy in the flue gas is also arranged to atmosphere thereupon; Not only cause energy waste, and cause environmental pollution.Use the coke oven flue gas afterheat generating system of the utility model, utilize the coke oven flue gas waste heat to generate electricity, effectively utilize the waste heat of coke oven flue gas, reduce when cutting down the consumption of energy to pollute.
The above is the utility model preferred embodiment, is not to limit the utility model protection domain with this, and is all in the utility model spirit, principle, the improvement of being done, is equal to replacement etc., all should be included in the utility model protection domain.
Claims (8)
1. a coke oven flue gas afterheat generating system is characterized in that, comprising:
Coke oven comprises smoke outlet;
Chimney;
The waste heat recovering device that the furnace flue gas exhaust heat that is used to focus reclaims, an end is connected with said smoke outlet, and the other end is connected with said chimney;
Be used for the heat energy that said waste heat recovering device reclaims is converted into the electricity generating device of electric energy, be connected with said waste heat recovering device.
2. coke oven flue gas afterheat generating system according to claim 1 is characterized in that, said waste heat recovering device is an exhaust heat boiler, and an end of said exhaust heat boiler is connected with the smoke outlet of said coke oven, and the other end is connected with said chimney through blower fan.
3. coke oven flue gas afterheat generating system according to claim 2 is characterized in that said exhaust heat boiler comprises housing, and is arranged on steam raising plant in the said housing, that be used to produce steam.
4. coke oven flue gas afterheat generating system according to claim 3; It is characterized in that; Said steam raising plant comprises economizer, drum, vaporizer and superheater; One end of said economizer is connected with feed water pump, and the other end of said economizer is connected with said drum, is provided with the first passage that is used for the hot water of said economizer heating is delivered to said vaporizer between said drum and the said vaporizer; And the second channel that the saturated vapour that said vaporizer produces is recycled to said drum; One end of said superheater is connected with said drum, and the other end of said superheater is connected with said electricity generating device, is used for the superheated vapor that produces is delivered to said electricity generating device generating.
5. coke oven flue gas afterheat generating system according to claim 4 is characterized in that, is provided with clean water treatment apparatus between said economizer and the said feed water pump.
6. coke oven flue gas afterheat generating system according to claim 1; It is characterized in that; Said electricity generating device comprises steam turbine and generator, and said steam turbine is connected with said waste heat recovering device, and said steam turbine is that said generator provides power through the heat energy that said waste heat recovering device reclaims.
7. according to each described coke oven flue gas afterheat generating system of claim 1 to 5, it is characterized in that, be provided with urgent discharge flue between the smoke outlet of said coke oven and the said chimney.
8. coke oven flue gas afterheat generating system according to claim 7 is characterized in that, said urgent discharge flue is provided with Safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200722019U CN202467949U (en) | 2012-02-29 | 2012-02-29 | Coke oven smoke waste-heat power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200722019U CN202467949U (en) | 2012-02-29 | 2012-02-29 | Coke oven smoke waste-heat power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202467949U true CN202467949U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200722019U Expired - Lifetime CN202467949U (en) | 2012-02-29 | 2012-02-29 | Coke oven smoke waste-heat power generation system |
Country Status (1)
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| CN (1) | CN202467949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147807A (en) * | 2013-02-27 | 2013-06-12 | 青岛中拓科技有限公司 | Power generation system using waste heat of coke oven crude gas |
-
2012
- 2012-02-29 CN CN2012200722019U patent/CN202467949U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147807A (en) * | 2013-02-27 | 2013-06-12 | 青岛中拓科技有限公司 | Power generation system using waste heat of coke oven crude gas |
| CN103147807B (en) * | 2013-02-27 | 2015-01-14 | 青岛中拓科技有限公司 | Power generation system using waste heat of coke oven crude gas |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Maples International Center, No. 32 Beijing 100082 Haidian District Xizhimen North Street office building B room 906 Patentee after: TOP RESOURCE CONSERVATION & ENVIRONMENT CO., LTD. Address before: Maples International Center, No. 32 Beijing 100082 Haidian District Xizhimen North Street office building B room 906 Patentee before: Top Resource Conservation Engineering Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |