CN201983646U - Comprehensive recycling device of cold and hot waste gas of sintering ring - Google Patents
Comprehensive recycling device of cold and hot waste gas of sintering ring Download PDFInfo
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- CN201983646U CN201983646U CN2011200625141U CN201120062514U CN201983646U CN 201983646 U CN201983646 U CN 201983646U CN 2011200625141 U CN2011200625141 U CN 2011200625141U CN 201120062514 U CN201120062514 U CN 201120062514U CN 201983646 U CN201983646 U CN 201983646U
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Abstract
The utility model relates to a comprehensive recycling device of cold and hot waste gas of a sintering ring. The comprehensive recycling device is characterized by comprising a ring cooling air blast being provided with an electrothermal moving butterfly valve and a ring cooling sealing plate; the ring cooling air blast is divided into a ring cooling high-temperature section, a ring cooling medium-temperature section and a ring cooling low-temperature section which are respectively connected with a high-temperature section air blower, a medium-temperature section air blower and a ring cooling low-temperature section air blower; the ring cooling low-temperature section is provided with a low-temperature communicating pipe which communicates the ring cooling low-temperature section and the medium-temperature section air blower; the ring cooling medium-temperature section is provided with a medium-temperature communicating pipe so as to communicate medium-temperature hot waste gas; and the ring cooling high-temperature section is provided with a high-temperature hot waste gas communicating pipe so as to communicate high-temperature hot waste gas. The comprehensive recycling device has the advantages that waste heat produced by sintering production is fully utilized, the production energy consumption is effectively controlled, working requirements on saving energy, reducing emission and reducing consumption in production are met, and the generating capacity of the waste heat is improved.
Description
Technical field
The utility model relates to the cold and hot waste gas comprehensive reutilization of a kind of sintered ring that uses device in the sintering process of metallurgy industry.
Background technology
Present domestic SINTERING PRODUCTION technology, the cold and hot waste gas that will encircle that has on UTILIZATION OF VESIDUAL HEAT IN directly draws back sintering machine and carries out hot gas sintering; To the encircle cold wind, hot waste gas that have reclaim and heat generation steam, steam are returned sintering mud roller ore deposit groove again and carry out pre-heat mixture; What have will encircle cold and hot waste gas recovery carrying out cogeneration.More than first kind of hot waste gas utilize the method exhaust gas utilization directly efficient but its consumption is limited, also have greatly hot waste gas to be discharged into atmosphere and cause waste and environmental pollution; It is low that the second method hot waste gas produces its utilization rate of waste heat of steam through boiler, and the steam that produces returns mud roller funnel and carry out pre-heat mixture, and mixture moisture and compound granularmetric composition are all had very big influence, thus the sintering process of having influence on; And the third way all reclaims all hot waste gas of the cold generation of sintered ring and carries out cogeneration, is fully utilized on exhaust heat recovery power generation; Yet do not carry out hot gas sintering, make the SINTERING PRODUCTION gas consumption significantly promote owing to there is hot waste gas to return sintering; And the directly logical cold wind of the sintering mine belt in the sintering process, the sintering deposit physical property declines to a great extent, and must significantly promote the solid fuel adapted amount and the coal gas use amount of SINTERING PRODUCTION for the requirement of satisfying the sintering deposit physical property.The waste heat of the cold generation of this method sintered ring is fully used simultaneously, and energy consumption also increases greatly, can not be best, optimum finish the energy-saving and emission-reduction job requirement.
The utility model content
The purpose of this utility model is fully utilized with regard to the waste heat that provides a kind of SINTERING PRODUCTION generation, and energy consumption is effectively controlled the cold and hot waste gas comprehensive reutilization of the sintered ring device of the requirement of realization production energy-saving and emission-reduction work.
Solution of the present utility model is such: have the ring cool air hose, described ring cool air hose is provided with moving butterfly valve of electric heating and the cold sealing plate of ring, to encircle cool air hose and be separated into the cold high temperature section of ring, encircle cold middle-temperature section and the cold low-temperature zone of ring, encircle cold high temperature section, encircle cold middle-temperature section and encircle cold low-temperature zone and be connected with the high temperature section air blast respectively, the middle-temperature section air blast, encircle cold low-temperature zone air blast, in the cold low-temperature zone of ring there is low temperature communicating pipe, cold low-temperature zone of low temperature communicating pipe connected ring and middle-temperature section air blast, encircle cold middle-temperature section middle temperature communicating pipe is arranged, warm waste gas in the connection, encircling cold high temperature section has elevated temperature heat waste gas communicating pipe, is communicated with elevated temperature heat waste gas.
Technique scheme can reclaim low-temperature zone low temperature hot waste gas and carry out the hot blast cooling as middle-temperature section cooling air centering temperature sintering deposit, and realization low temperature hot waste gas is all recycled and guaranteed and can further improve sintering performance again by the sintering deposit cooling effect.Warm waste gas in producing after the low temperature hot waste gas process middle-temperature section cooling secondary heating is drawn back sintering machine by pipeline carry out hot gas sintering, when cogeneration is carried out in the recovery of elevated temperature heat waste gas, realize implementing in full of hot gas sintering, reach the whole process of production energy saving purposes.The elevated temperature heat waste gas that high temperature section produces directly reclaims and carries out cogeneration.
The utility model has the advantages that:
1, all reclaimed the low temperature hot waste gas that sintering circular-cooler produces, realized 100% the utilization sintered ring cold hot waste gas that produces also greatly reduces the pollution of production environment hot waste gas, significantly improves worker's working environment.
2, the cold second section cooling air of ring is cold the 3rd section low temperature hot waste gas of ring, and its wind-warm syndrome is 80 ~ 150 ℃, and the sintering deposit of this section is not owing to directly be subjected to the cooling of cold wind, its temperature does not descend rapidly, do not occur cold shortly yet, promoted sinter strength, reduce sinter return fine rate 1.78%.
3, reclaim ring cold in warm waste gas carry out hot gas sintering, realized and reclaim the cold elevated temperature heat waste gas of ring and carry out reducing significantly of hot gas sintering and produce solid fuel, the same effect of coal gas equal energy source consumption; Thereby after realizing encircle cold elevated temperature heat waste gas recovery and carrying out cogeneration, do not promote the new situation of SINTERING PRODUCTION energy consumption, make SINTERING PRODUCTION under the situation that keeps original low energy consumption, produce a large amount of electric weight by cogeneration, really reach produce energy-conservation, reduce discharging, the consumption reduction job requirement.
4, ring in cold warm waste gas reclaim and carry out hot gas sintering, significantly promoted sintering deposit cake heat, thereby the cold high temperature section EGT of enhancing ring has significantly simultaneously also promoted the cogeneration amount, can promote generated energy 1.25%.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a structural representation of the present utility model.
The specific embodiment
The utility model comprises 1, encircles cold high temperature section, and 2, encircle cold middle-temperature section, 3, encircle cold low-temperature zone, 4, air blast, 5, the moving butterfly valve of electric heating, 6, encircle cold sealing plate, 7, the ring cool air hose, 8, middle-temperature section air blast, 9, the cold low-temperature zone air blast of ring, 10, low temperature communicating pipe, 11, middle temperature communicating pipe, 12, logical elevated temperature heat waste gas, 13, exhaust pipe.
Has ring cool air hose 7, described ring cool air hose 7 is provided with moving butterfly valve 5 of electric heating and the cold sealing plate 6 of ring, to encircle cool air hose 7 and be separated into the cold high temperature section 1 of ring, encircle cold middle-temperature section 2 and the cold high temperature section 3 of ring, encircle cold high temperature section 1, encircle cold middle-temperature section 2 and encircle cold low-temperature zone 3 and be connected with high temperature section air blast 4 respectively, middle-temperature section air blast 8, encircle cold low-temperature zone air blast 9, in the cold low-temperature zone 3 of ring there is low temperature communicating pipe 10, cold low-temperature zone 3 of low temperature communicating pipes 10 connected ring and middle-temperature section air blast 8, encircle cold middle-temperature section 2 middle temperature communicating pipe 11 is arranged, warm waste gas in the connection, encircling cold high temperature section 1 has elevated temperature heat waste gas communicating pipe 12, is communicated with elevated temperature heat waste gas.
The operation principle of present embodiment is:
1, ring cool air hose 7 moves butterfly valve 5 by electric heating and encircles cold sealing plate 6 and is divided into the cold high temperature section 1 of ring, the cold middle-temperature section 2 of ring, the cold low-temperature zone 3 of ring, and each Duan Jun has the air blast correspondence; The moving butterfly valve 5 of electric heating cuts out during operate as normal, encircles the independent wind of not going here and there mutually of cold three sections airduct air feeds.
2, extraneous air advances the central cooler low-temperature zone by cold low-temperature zone air blast 9 drums of the ring that encircles cold low-temperature zone 3 places, cool off the low temperature hot waste gas that produces behind the heat sinter of this section, the low temperature hot waste gas is all collected by delivering to the middle-temperature section air blast 8 at the cold middle-temperature section of ring 2 places low temperature communicating pipe 10 by gathering-device, warm waste gas in producing by the sintering deposit in the cold middle-temperature section 2 of middle-temperature section air blast 8 air rings as cooling air.Warm waste gas carries out hot gas sintering by returning the ignition of sintering process holding furnace middle temperature communicating pipe 11 in being produced after gathering-device is all collected.
3, the elevated temperature heat waste gas of cold high temperature section 1 generation of ring all directly reclaims by elevated temperature heat waste gas communicating pipes 12 and carries out cogeneration, and generating tail gas carries out the cooling down high-temperature sintering deposit by the air blast 9 that exhaust pipe 13 returns the high temperature section place again, realizes recycling.
Claims (1)
1. the cold and hot waste gas comprehensive reutilization of sintered ring device, it is characterized in that having ring cool air hose (7), described ring cool air hose (7) is provided with moving butterfly valve (5) of electric heating and ring cold sealing plate (6), to encircle cool air hose (7) and be separated into ring cold high temperature section (1), encircle cold middle-temperature section (2) and ring cold high temperature section (3), encircle cold high temperature section (1), encircle cold middle-temperature section (2) and encircle cold low-temperature zone (3) and be connected with high temperature section air blast (4) respectively, middle-temperature section air blast (8), encircle cold low-temperature zone air blast (9), in the cold low-temperature zone of ring (3) there is low temperature communicating pipe (10), low temperature communicating pipe cold low-temperature zone of (10) connected ring (3) and middle-temperature section air blast (8), encircle cold middle-temperature section (2) middle temperature communicating pipe (11) is arranged, warm waste gas in the connection, encircling cold high temperature section (1) has elevated temperature heat waste gas communicating pipe (12), is communicated with elevated temperature heat waste gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200625141U CN201983646U (en) | 2011-03-11 | 2011-03-11 | Comprehensive recycling device of cold and hot waste gas of sintering ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200625141U CN201983646U (en) | 2011-03-11 | 2011-03-11 | Comprehensive recycling device of cold and hot waste gas of sintering ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983646U true CN201983646U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200625141U Expired - Fee Related CN201983646U (en) | 2011-03-11 | 2011-03-11 | Comprehensive recycling device of cold and hot waste gas of sintering ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201983646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066702A (en) * | 2015-09-17 | 2015-11-18 | 山东钢铁股份有限公司 | Method for igniting air by taking hot air from closed movable ring-shaped container for preheating and sintering |
| CN107796226A (en) * | 2016-08-29 | 2018-03-13 | 中冶长天国际工程有限责任公司 | A kind of sintering deposit grate furnace cooling and residual heat using device and residual-heat utilization method |
-
2011
- 2011-03-11 CN CN2011200625141U patent/CN201983646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066702A (en) * | 2015-09-17 | 2015-11-18 | 山东钢铁股份有限公司 | Method for igniting air by taking hot air from closed movable ring-shaped container for preheating and sintering |
| CN107796226A (en) * | 2016-08-29 | 2018-03-13 | 中冶长天国际工程有限责任公司 | A kind of sintering deposit grate furnace cooling and residual heat using device and residual-heat utilization method |
| CN107796226B (en) * | 2016-08-29 | 2023-07-25 | 中冶长天国际工程有限责任公司 | Sintering ore grate furnace cooling and waste heat utilization device and waste heat utilization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20170311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |