CN1079116C - Cold-wind cooler for burner of pre-combustion hot air furnace and its control method - Google Patents
Cold-wind cooler for burner of pre-combustion hot air furnace and its control method Download PDFInfo
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- CN1079116C CN1079116C CN99109447A CN99109447A CN1079116C CN 1079116 C CN1079116 C CN 1079116C CN 99109447 A CN99109447 A CN 99109447A CN 99109447 A CN99109447 A CN 99109447A CN 1079116 C CN1079116 C CN 1079116C
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- cold wind
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 7
- 230000003292 diminished effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000011449 brick Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The present invention relates to a ventilating and cooling device for prolonging the service of top combustion furnace burners and a control method thereof, which belongs to the technical field of iron making in steel industry. In the present invention, a cold air introduction circle pipe 8 is arranged on a combustion supporting air circle pipe 9 of the existing top combustion furnace burner 6. The cold air introduction circle pipe 8 is connected with a high furnace cold air pipeline 14 through a cold air introduction pipeline 3, and a cold air introduction intercepting valve 4 and a cold air introduction adjusting valve 5 are arranged on the cold air introduction pipeline 3. The control method of the cold air introduction cooling device of the top combustion furnace burner provided by the present invention can realize that hot air can not enter a burner 7 and excess cold air can not enter the top combustion furnace burner 6 to influence blast temperature.
Description
The present invention is a kind of ventilation refrigerating unit that is used to prolong the top burning type hot blast stove combustor life-span, belongs to the ironmaking technology field in the Iron And Steel Industry.
The blast-furnace equipment of ironmaking usefulness has three kinds of forms with hotblast stove at present: internal combustion type, external combustion type and top ignition.Cowper stove is installed in the bottom of gas well because of burner, and gas well and the regenerator temperature difference on same level is big, easily causes the partition wall short circuit, low, air-flow skewness of hotblast stove life-span.The complex structure of the combustion chamber of outside combustion stove and regenerator junction, working conditions is abominable, and the life-span, short investment was high.The hot blast valve of top combustion stove and burner are on same horizontal plane, and hot blast valve is subjected to the direct impact of flame, and the life-span is short, hot blast valve position height needs the high pressure water cooling, and hot blast manifold and hot-blast main's intersection all is a weak link, the hot blast valve pipeline is long, and thermosteresis is big.The top combustion stove that has hot-air channel that provides among the CH85101619 has overcome the shortcoming of Cowper stove and top combustion stove, but logical facts have proved in a few years: because the hybrid channel of combustion air and coal gas (is a burner, call burner in the following text) abominable with the working conditions of furnace shell junction, the burning phase and the temperature difference on air are bigger, when in case leaking appears in combustion-supporting air-valve and gas stop valve, this is everywhere in the hot operation state, cause this place life-span short, burner liner brick cracky, burning red and leaking out appears in stove skin often, influences the works better of hotblast stove.
The purpose of this invention is to provide a kind of logical cold wind refrigerating unit that has the hot-air channel top burning type hot blast stove combustor, this device is intended to solve the shortcoming of the top combustion stove that has hot-air channel, improve the life-span of its burner, guarantee hotblast stove energy works better, make it more perfect, and reach industrial production requirement.
Another object of the present invention provides the control method of the logical cold wind refrigerating unit of described top burning type hot blast stove combustor.
The object of the present invention is achieved like this:
The present invention establishes a logical cold wind endless tube on the air endless tube of existing top burning type hot blast stove combustor, described logical cold wind endless tube links to each other with the cold blast pipe, and the centre is provided with logical cold wind intercepting valve and logical cold wind variable valve.
Describe the present invention below in conjunction with accompanying drawing:
Fig. 1 is a front view of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Among the figure: the 1-gas line, 2-combustion air pipeline, 3-leads to cold air duct, 4-leads to the cold wind intercepting valve, and 5-leads to cold wind variable valve, 6-top combustion stove, the 7-burner, 8-leads to cold wind endless tube, 9-combustion air endless tube, 10-gas stop valve, 11-combustion air trip valve, the 12-cold blast valve, 13-hot blast valve, 14-cold air duct.
The present invention establishes a logical cold wind endless tube 8 on the combustion air endless tube 9 of existing top combustion stove 6, described logical cold wind endless tube 8 links to each other with cold blast pipeline 14 by logical cold air duct 3, is provided with logical cold wind intercepting valve 4 and logical cold wind variable valve 5 on logical cold air duct 3.
The control method of the logical cold wind refrigerating unit of described top burning type hot blast stove combustor is as follows:
In the top combustion stove burning phase, close logical cold wind intercepting valve 4 and logical cold wind variable valve 5, top combustion stove is in the band state of combustion.When the burning phase changes on air, close gas stop valve 10 and combustion air trip valve 11 earlier, open logical cold wind intercepting valve 4 and logical cold wind variable valve 5 to top combustion stove 6 pressurisings.After pressurising finishes, open cold blast valve 12 and hot blast valve 13.For neither allowing top combustion stove 6 interior hot blasts enter burner 7, do not allow too much cold wind enter top combustion stove again and reduce hot blast temperature.In burner 7, be provided with thermopair, the temperature at burner 7 places is detected.Control the temperature at burner 7 places as required.The temperature at burner 7 places is to realize by the aperture of regulating logical cold wind variable valve 5.When the temperature at burner 7 places is higher than set(ting)value; make the aperture of logical cold wind variable valve 5 become big; thereby make more cold wind enter burner 7 by logical cold air duct 3, logical cold wind endless tube 8, combustion air endless tube 9 by cold air duct 14; the temperature at burner 7 places is reduced, thereby protection burner 7 is not burnt out.When the temperature at burner 7 places is lower than set(ting)value, the aperture of logical cold wind variable valve 5 is diminished, thereby reduce the cold blast rate that enters top combustion stove 6.Having realized neither allowing hot blast enter burner 7 does not by the way allow too much cold wind enter the purpose that top combustion stove 6 influences wind-warm syndrome again.
In addition, combustion air trip valve 11 and gas stop valve 10 places were leaked, from this leakage is cold wind rather than hot blast.So both guaranteed that burner 7 place's temperature can be not too high, hot blast is not leaked from combustion air trip valve 11 and gas stop valve 10, thus the work-ing life of improving burner 7, combustion air trip valve 11 and gas stop valve 10.
The present invention is through using on several blast furnaces, and its effect is better.
Claims (2)
1, a kind of logical cold wind refrigerating unit of top burning type hot blast stove combustor, it is characterized in that described device is to establish a logical cold wind endless tube (8) on the combustion air endless tube (9) of existing top combustion stove (6), described logical cold wind endless tube (8) links to each other with cold blast pipeline (14) by logical cold air duct (3), is provided with logical cold wind intercepting valve (4) and logical cold wind variable valve (5) on logical cold air duct (3).
2, the control method of device as claimed in claim 1 is characterized in that closing logical cold wind intercepting valve (4) and logical cold wind variable valve (5) in the top combustion stove burning phase, and top combustion stove is in the band state of combustion; When the burning phase changes on air, close gas stop valve (10) and combustion air trip valve (11) earlier, open logical cold wind intercepting valve (4) and logical cold wind variable valve (5) and give top combustion stove (6) pressurising; After pressurising finishes, open cold blast valve (12) and hot blast valve (13); For neither allowing the interior hot blast of top combustion stove (6) enter burner (7), do not allow too much cold wind enter top combustion stove again and reduce hot blast temperature, in burner (7), be provided with thermopair, the temperature that burner (7) is located detects; Control the temperature that burner (7) is located as required; The temperature that burner (7) is located is to realize by the aperture of regulating logical cold wind variable valve (5); When the temperature of locating when burner (7) is higher than set(ting)value; make the aperture of logical cold wind variable valve (5) become big; thereby make more cold wind enter burner (7) by logical cold air duct (3), logical cold wind endless tube (8), combustion air endless tube (9) by cold air duct (14); the temperature that burner (7) is located reduces, thereby protection burner (7) is not burnt out.When the temperature of locating when burner (7) is lower than set(ting)value, the aperture of logical cold wind variable valve (5) is diminished, thereby reduce the cold blast rate that enters top combustion stove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99109447A CN1079116C (en) | 1999-07-06 | 1999-07-06 | Cold-wind cooler for burner of pre-combustion hot air furnace and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99109447A CN1079116C (en) | 1999-07-06 | 1999-07-06 | Cold-wind cooler for burner of pre-combustion hot air furnace and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1254761A CN1254761A (en) | 2000-05-31 |
| CN1079116C true CN1079116C (en) | 2002-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99109447A Expired - Fee Related CN1079116C (en) | 1999-07-06 | 1999-07-06 | Cold-wind cooler for burner of pre-combustion hot air furnace and its control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1079116C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI720434B (en) * | 2019-03-12 | 2021-03-01 | 陳俊年 | Ultra-high temperature resistant thermocouple structure |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644481B (en) * | 2008-08-07 | 2011-05-11 | 中冶赛迪工程技术股份有限公司 | Top-fired air heating furnace |
| EP2253723A1 (en) * | 2009-05-20 | 2010-11-24 | Paul Wurth S.A. | Device for regulating the temperature of a gas in a hot gas main |
| JP4955117B1 (en) * | 2011-03-15 | 2012-06-20 | 新日鉄エンジニアリング株式会社 | Top-fired hot air furnace |
| CN102978316B (en) * | 2012-12-15 | 2015-02-04 | 武钢集团昆明钢铁股份有限公司 | Top combustion stove capable of effectively preventing temperature of burner from excessively rising |
| US9361498B2 (en) * | 2013-08-06 | 2016-06-07 | Intel Corporation | Optical communication using differential images |
| CN108486301B (en) * | 2018-03-07 | 2020-04-21 | 首钢集团有限公司 | Blast furnace hot blast stove air temperature adjusting method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1501174A (en) * | 1974-05-27 | 1978-02-15 | Brohltal Deumag Ag | Blast heating apparatus |
| GB2069678A (en) * | 1980-02-15 | 1981-08-26 | Wurth Paul Sa | Process and device for regulating the temperature of the hot air in an installation for the production of hot air |
| CN85101619A (en) * | 1985-04-01 | 1986-03-10 | 武汉钢铁学院 | Top combustion stove with hot-air channel |
| SU1298248A1 (en) * | 1985-11-04 | 1987-03-23 | Всесоюзный научно-исследовательский институт металлургической теплотехники | Air heater |
-
1999
- 1999-07-06 CN CN99109447A patent/CN1079116C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1501174A (en) * | 1974-05-27 | 1978-02-15 | Brohltal Deumag Ag | Blast heating apparatus |
| GB2069678A (en) * | 1980-02-15 | 1981-08-26 | Wurth Paul Sa | Process and device for regulating the temperature of the hot air in an installation for the production of hot air |
| CN85101619A (en) * | 1985-04-01 | 1986-03-10 | 武汉钢铁学院 | Top combustion stove with hot-air channel |
| SU1298248A1 (en) * | 1985-11-04 | 1987-03-23 | Всесоюзный научно-исследовательский институт металлургической теплотехники | Air heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI720434B (en) * | 2019-03-12 | 2021-03-01 | 陳俊年 | Ultra-high temperature resistant thermocouple structure |
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| Publication number | Publication date |
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| CN1254761A (en) | 2000-05-31 |
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Owner name: NONE Free format text: FORMER OWNER: ZHANG WEI; BAI YANMING Effective date: 20020913 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT PATENT RIGHT PATENTEE; FROM: ZHOU CHUNLIN; TO: CHENGDE XINXIN VANADIUM-TITANIUM CO., LTD. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20020913 Address after: Chengde Xinxin vanadium titanium Limited by Share Ltd Technology Center Patentee after: Xinxin Vanadium Titanium Co., Ltd., Chengde City Address before: Technology center of Hebei province Chengde city shuangluanou Luanhe town of Chengde Iron & Steel Group Co. Co-patentee before: Zhang Wei Patentee before: Zhou Chunlin Co-patentee before: Bai Yanming |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |