CN105066713A - Process capable of improving waste heat recovery yield of annular cooler - Google Patents
Process capable of improving waste heat recovery yield of annular cooler Download PDFInfo
- Publication number
- CN105066713A CN105066713A CN201510428857.8A CN201510428857A CN105066713A CN 105066713 A CN105066713 A CN 105066713A CN 201510428857 A CN201510428857 A CN 201510428857A CN 105066713 A CN105066713 A CN 105066713A
- Authority
- CN
- China
- Prior art keywords
- flue
- air blast
- central cooler
- waste heat
- air
- 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.)
- Granted
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
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Chimneys And Flues (AREA)
- Air Supply (AREA)
Abstract
The invention relates to a process capable of improving the waste heat recovery yield of an annular cooler. The process comprises the specific steps that 1, an air blower, connected with an air bellow, on the lower portion of a trolley is started when environment temperature is below -10 DEG C; 2, the initial opening degree of an air door of the air blower is adjusted to 20%; 3, it is ensured that hot air is exhausted out of a sealed position of the annular cooler, and a sealed area of the annular cooler is made to run in a micro-positive pressure state; and 4, the opening degree of the air door of the air blower is adjusted according to flue gas temperature, the opening degree of the air door of the air blower is adjusted to 30% when the flue gas temperature is larger than 250 DEG C, and the opening degree of the air door of the air blower is adjusted to 40% when the flue gas temperature is larger than 350 DEG C. The sealed area of the annular cooler is made to run in the micro-positive pressure state, so that cold air entering the sealed space between a gas hood of the annular cooler and the trolley is reduced, and therefore the temperature of flue gas in the annular cooler is increased, and it is guaranteed that heat is absorbed to the maximum degree. The yield of the flue gas is improved by 25-27 t/h.
Description
Technical field
The present invention relates to central cooler heat recovery technology field, particularly relate to a kind of technique improving central cooler waste heat recovery output.
Background technology
In central cooler Transforming Engineering, central cooler one cold-zone arranges two collection conduit, and two cold-zones arrange a collection conduit, all configure electronic isolation butterfly valve.During normal work, this valve is opened; Carry out dedusting after two pipelines of one cold-zone are merged into a pipeline, the flue gas collected after dedusting sends into the high-temperature flue gas import of boiler by flue; The flue gas of a pipeline collection of two cold-zones sends into the low-temperature flue gas import of boiler by flue.Boiler export about 140 DEG C flue gases, send into cycle flue by circulating fan, are connected to the bellows of a chassis bottom, cold-zone, recycle.Due to the central cooler waste-heat recovery device newly increased, the flue gas recirculation that boiler reclaims utilizes, and eliminates three air blasts of original chassis bottom.In the process that central cooler waste-heat recovery device uses, the flue-gas temperature reclaimed by boiler is low, flow is little, central cooler inside is made to form negative pressure after being connected to central cooler, outside cold air enters central cooler inside by the sealing ring between ring cold machine smoke hood and chassis, central cooler internal temperature is reduced, decreases the yield of flue gas.Therefore simple, the effective technique of a kind of structure is needed effectively to improve central cooler waste heat recovery output.
Summary of the invention
Technical problem to be solved by this invention there is provided simple, the effective technique of a kind of structure and effectively improves central cooler waste heat recovery output.
For achieving the above object, the present invention realizes by the following technical solutions:
Improve a technique for central cooler waste heat recovery output, concrete steps are as follows:
1., when environment temperature arrives less than-10 DEG C, air blast chassis bottom being connected bellows is opened;
2 adjustment air blast air door initial openings to 20%;
3. confirm that central cooler sealing place has hot gas to discharge, and makes central cooler sealing area run under slight positive pressure state;
4., according to flue-gas temperature adjustment air blast throttle opening, when flue-gas temperature is greater than 250 DEG C, tune up the throttle opening to 30% of air blast; When flue-gas temperature is greater than 350 DEG C, tune up the throttle opening 40% of air blast.
Improve the central cooler waste-heat recovery device of central cooler waste heat recovery output, comprise central cooler, petticoat pipe, chassis, sealing system, central cooler upper smoke feed channel, waste heat boiler, circulating fan, cycle flue, air blast, wherein central cooler, petticoat pipe, chassis and sealing system form Huan Leng mono-district and Huan Leng bis-district, Huan Leng mono-district is connected waste heat boiler with Huan Leng bis-district upper smoke feed channel, heat boiler outlet is provided with circulating fan, circulating fan is connected with cycle flue, cycle flue is connected to the bellows of a chassis bottom, cold-zone, cycle flue is provided with circulating fan outlet electric butterfly valve, air blast is connected to the bellows of a chassis bottom, cold-zone, air blast flue is provided with electric butterfly valve, air blast flue is connected with between cycle flue.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention makes central cooler sealing area run under slight positive pressure state, decreases the cold air sealed between ring cold machine smoke hood and chassis and enters, thus improves central cooler inside smoke temperature, ensures that heat at utmost absorbs.Make flue gas output increased 25 ~ 27t/h.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-central cooler 2-petticoat pipe 3-chassis 4-sealing system 5-central cooler upper smoke feed channel 6-waste heat boiler 7-circulating fan 8-cycle flue 9-1# air blast 10-circulating fan outlet electric butterfly valve 11-air blast flue electric butterfly valve
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further illustrated:
As shown in Figure 1, improve the central cooler waste-heat recovery device of central cooler waste heat recovery output, comprise central cooler 1, petticoat pipe 2, chassis 3, sealing system 4, central cooler upper smoke feed channel 5, waste heat boiler 6, circulating fan 7, cycle flue 8, 1# air blast-9, wherein central cooler 1, petticoat pipe 2, chassis 3 and sealing system 4 form Huan Leng mono-district and Huan Leng bis-district, Huan Leng mono-district is connected waste heat boiler 6 with Huan Leng bis-district upper smoke feed channel 5, waste heat boiler 6 outlet is provided with circulating fan 7, circulating fan 7 is connected with cycle flue 8, cycle flue 8 is connected to the bellows of a chassis bottom, cold-zone, cycle flue 8 is provided with circulating fan outlet electric butterfly valve 10, 1# air blast 9 is connected to the bellows of a chassis bottom, cold-zone, air blast flue is provided with electric butterfly valve 11, air blast flue is connected with between cycle flue.
Embodiment 1
Improve a technique for central cooler waste heat recovery output, concrete steps are as follows:
1., when environment temperature arrives-10 DEG C, air blast chassis bottom being connected bellows is opened;
2 adjustment air blast air door initial openings to 20%;
3. confirm that central cooler sealing place has hot gas to discharge, and makes central cooler sealing area run under slight positive pressure state;
4., when flue-gas temperature is elevated to 250 DEG C, tune up the throttle opening to 30% of air blast; When detection flue-gas temperature is between 250 DEG C-350 DEG C, keep the throttle opening 30% of air blast;
When flue-gas temperature is elevated to 350 DEG C, tune up the throttle opening to 40% of air blast; When detection flue-gas temperature is greater than 350 DEG C, keep the throttle opening 40% of air blast;
When flue-gas temperature drops to below 350 DEG C, reduce the throttle opening to 30% of air blast.
Embodiment 2
Improve a technique for central cooler waste heat recovery output, concrete steps are as follows:
1., when environment temperature arrives-15 DEG C, air blast chassis bottom being connected bellows is opened;
2 adjustment air blast air door initial openings to 20%;
3. confirm that central cooler sealing place has hot gas to discharge, and makes central cooler sealing area run under slight positive pressure state;
4., when flue-gas temperature is elevated to 250 DEG C, tune up the throttle opening to 30% of air blast; When detection flue-gas temperature is between 250 DEG C-350 DEG C, keep the throttle opening 30% of air blast;
When flue-gas temperature is elevated to 350 DEG C, tune up the throttle opening to 40% of air blast; When detection flue-gas temperature is greater than 350 DEG C, keep the throttle opening 40% of air blast;
When flue-gas temperature drops to below 350 DEG C, reduce the throttle opening to 30% of air blast.
Be only general principle of the present invention above, not impose any restrictions the present invention, the present invention of every foundation carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (2)
1. improve a technique for central cooler waste heat recovery output, it is characterized in that, concrete steps are as follows:
1., when environment temperature arrives less than-10 DEG C, air blast chassis bottom being connected bellows is opened;
2 adjustment air blast air door initial openings to 20%;
3. confirm that central cooler sealing place has hot gas to discharge, and makes central cooler sealing area run under slight positive pressure state;
4., according to flue-gas temperature adjustment air blast throttle opening, when flue-gas temperature is greater than 250 DEG C, tune up the throttle opening to 30% of air blast; When flue-gas temperature is greater than 350 DEG C, tune up the throttle opening 40% of air blast.
2. according to claim 1, improve the central cooler waste-heat recovery device of central cooler waste heat recovery output, comprise central cooler, petticoat pipe, chassis, sealing system, central cooler upper smoke feed channel, waste heat boiler, circulating fan, cycle flue, air blast, wherein central cooler, petticoat pipe, chassis and sealing system form Huan Leng mono-district and Huan Leng bis-district, Huan Leng mono-district is connected waste heat boiler with Huan Leng bis-district upper smoke feed channel, heat boiler outlet is provided with circulating fan, circulating fan is connected with cycle flue, cycle flue is connected to the bellows of a chassis bottom, cold-zone, cycle flue is provided with circulating fan outlet electric butterfly valve, air blast is connected to the bellows of a chassis bottom, cold-zone, air blast flue is provided with electric butterfly valve, air blast flue is connected with between cycle flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428857.8A CN105066713B (en) | 2015-07-21 | 2015-07-21 | Process capable of improving waste heat recovery yield of annular cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428857.8A CN105066713B (en) | 2015-07-21 | 2015-07-21 | Process capable of improving waste heat recovery yield of annular cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105066713A true CN105066713A (en) | 2015-11-18 |
| CN105066713B CN105066713B (en) | 2017-04-19 |
Family
ID=54496144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510428857.8A Active CN105066713B (en) | 2015-07-21 | 2015-07-21 | Process capable of improving waste heat recovery yield of annular cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105066713B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916011A (en) * | 2021-09-10 | 2022-01-11 | 马鞍山钢铁股份有限公司 | Sintering cooling waste heat micro-positive pressure recovery control system and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238120A (en) * | 1978-10-11 | 1980-12-09 | Dravo Corporation | Sealing device for sinter cooler |
| CN201198771Y (en) * | 2008-05-12 | 2009-02-25 | 浙江西子联合工程有限公司 | Steam compensating type steam turbine waste heat power generation system allocated with high-efficiency sintered double-pressure waste heat boiler |
| CN201621970U (en) * | 2010-03-19 | 2010-11-03 | 湖南永清环保股份有限公司 | Device for controlling air leakage and pressure of waste gas inside recirculation cooler seal cover |
| CN102980413A (en) * | 2012-12-05 | 2013-03-20 | 江苏永钢集团有限公司 | Afterheat utilization device of sintering machine |
| CN203336981U (en) * | 2013-05-06 | 2013-12-11 | 北京佰能蓝天科技有限公司 | Novel sintered ring refrigerator flue gas waste heat recycling system |
| CN103644743A (en) * | 2013-12-11 | 2014-03-19 | 北京志能祥赢节能环保科技有限公司 | Combination system for efficiently using waste heat in iron mine sintering cooling process |
| CN204063985U (en) * | 2014-07-08 | 2014-12-31 | 中冶北方（大连）工程技术有限公司 | Sintering circular-cooler waste-heat recovery device |
| CN104457295A (en) * | 2014-11-17 | 2015-03-25 | 北京中冶设备研究设计总院有限公司 | Waste heat utilization air and flue gas system device and method of vestibule type circular cooler |
| CN204854375U (en) * | 2015-07-21 | 2015-12-09 | 鞍钢集团工程技术有限公司 | Cold quick -witted waste heat recovery device of ring |
-
2015
- 2015-07-21 CN CN201510428857.8A patent/CN105066713B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238120A (en) * | 1978-10-11 | 1980-12-09 | Dravo Corporation | Sealing device for sinter cooler |
| CN201198771Y (en) * | 2008-05-12 | 2009-02-25 | 浙江西子联合工程有限公司 | Steam compensating type steam turbine waste heat power generation system allocated with high-efficiency sintered double-pressure waste heat boiler |
| CN201621970U (en) * | 2010-03-19 | 2010-11-03 | 湖南永清环保股份有限公司 | Device for controlling air leakage and pressure of waste gas inside recirculation cooler seal cover |
| CN102980413A (en) * | 2012-12-05 | 2013-03-20 | 江苏永钢集团有限公司 | Afterheat utilization device of sintering machine |
| CN203336981U (en) * | 2013-05-06 | 2013-12-11 | 北京佰能蓝天科技有限公司 | Novel sintered ring refrigerator flue gas waste heat recycling system |
| CN103644743A (en) * | 2013-12-11 | 2014-03-19 | 北京志能祥赢节能环保科技有限公司 | Combination system for efficiently using waste heat in iron mine sintering cooling process |
| CN204063985U (en) * | 2014-07-08 | 2014-12-31 | 中冶北方（大连）工程技术有限公司 | Sintering circular-cooler waste-heat recovery device |
| CN104457295A (en) * | 2014-11-17 | 2015-03-25 | 北京中冶设备研究设计总院有限公司 | Waste heat utilization air and flue gas system device and method of vestibule type circular cooler |
| CN204854375U (en) * | 2015-07-21 | 2015-12-09 | 鞍钢集团工程技术有限公司 | Cold quick -witted waste heat recovery device of ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916011A (en) * | 2021-09-10 | 2022-01-11 | 马鞍山钢铁股份有限公司 | Sintering cooling waste heat micro-positive pressure recovery control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105066713B (en) | 2017-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103727751A (en) | Fuel gas type drying box | |
| CN106403628A (en) | Low grade residual heat continuous recycle system for kiln | |
| CN105066713A (en) | Process capable of improving waste heat recovery yield of annular cooler | |
| CN204854375U (en) | Cold quick -witted waste heat recovery device of ring | |
| CN103063044B (en) | Rotary hearth furnace smoke waste heat utilization system and rotary hearth furnace fume afterheat Application way | |
| CN202040832U (en) | Connecting system of regenerative air preheater air leakage recycling device and dry-type slag removal machine | |
| CN203323578U (en) | Sintered ring refrigerator exhaust gas waste heat gradient utilization system | |
| CN205119886U (en) | Energy -saving heat exchanger | |
| CN202947447U (en) | Jet flow type hot blast stove with preheating device and drying system | |
| CN105972623A (en) | 1000WM-level secondary reheating power station and boiler series-connection method three-stage blowpipe structure | |
| CN207294178U (en) | A kind of recuperation of heat sulfur burner | |
| CN202284891U (en) | Sand drying system and dry-mixed mortar stirring station | |
| CN205991721U (en) | A kind of afterheat generating system | |
| CN205505657U (en) | Solar thermal energy becomes device humorously | |
| CN205387579U (en) | Type blast furnace soft water expansion drum prevents frostbite | |
| CN103836953A (en) | Method for preventing main flue and dust remover in circulation sintering from condensation and air bellow branch pipe devices | |
| CN203927163U (en) | Tobacco high temperature drying pipe connecting structure | |
| CN215508323U (en) | Environment-friendly efficient soil organic matter treatment system | |
| CN103343976B (en) | A kind of method improving the heat primary air temperature of burning high-moisture coal boiler | |
| CN207180378U (en) | A kind of silico-calcium furnace body cooling system | |
| CN203810947U (en) | Sintering environment dedusting waste gas recycling system | |
| CN207922890U (en) | The recycling system of sensible heat flue gas in a kind of sintering production | |
| CN203518629U (en) | Preheating device for continuously drying mineral aggregates through smoke waste heat | |
| CN106196104A (en) | Heat accumulating type catalytic decomposition bed heat reclaiming system | |
| CN207230604U (en) | A kind of gas boiler increases thermal wind sensor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |