CN201648428U - Double-preheating system of regenerative air heating furnace - Google Patents
Double-preheating system of regenerative air heating furnace Download PDFInfo
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- CN201648428U CN201648428U CN2010200223581U CN201020022358U CN201648428U CN 201648428 U CN201648428 U CN 201648428U CN 2010200223581 U CN2010200223581 U CN 2010200223581U CN 201020022358 U CN201020022358 U CN 201020022358U CN 201648428 U CN201648428 U CN 201648428U
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Abstract
The utility model discloses a double-preheating system of a regenerative air heating furnace. The system comprises two air regenerators, an air proportioner, a three-way air valve, an air mixer, an air heating furnace fan, two gas regenerators, a gas proportioner, a three-way gas valve, a gas mixer and a combustion fan, the air heating furnace fan is connected with the air proportioner, which is connected with the three-way air valve, the three-way air valve is respectively connected with the two air regenerators, which are respectively connected with the air mixer, the outlet of the air mixer is connected with a burner of the air heating furnace, two burners of the two air regenerators are respectively connected with a combustion air main and a blast furnace gas main, igniters on the two burners of the two air regenerators are respectively connected with an igniting gas main, and the gas regenerator and the air regenerator have the same structure and shape and are connected in the same way. The system can ensure that the air heating furnace can come up to the requirement on high air temperature.
Description
Affiliated technical field
The utility model relates to a kind of pre-heating system of hotblast stove, particularly a kind of double-preheating system of heat accumulation type hot-blast furnace.
Background technology
The employed fuel of the blast funnace hot blast stove of present most of iron and steel enterprises is low-calorie blast furnace self produced gas, and hotblast stove only depends on its wind-warm syndrome of burning blast furnace gas can only reach about 1000-1050 ℃, does not satisfy the requirement of 1200 ℃ of high wind-warm syndrome at all.Therefore, taked a lot of methods in order to improve wind-warm syndrome: the coke oven furnace gas as the high heating of multifuel combustion part, utilize hot-blast stove fume waste heat preheated air and coal gas etc.Because iron and steel enterprise's higher calorific value coke-oven gas is generally not enough, and the hot-blast stove fume temperature is not high, and it is extremely limited to improve air and temperature of gas, generally can only reach about 140 ℃, the wind-warm syndrome that can improve also has only 80-90 ℃, does not therefore still satisfy the requirement of high wind-warm syndrome.
The utility model content
The technical problems to be solved in the utility model provides a kind of double-preheating system of heat accumulation type hot-blast furnace, and the blast furnace gas that this system's raising hotblast stove enters and the temperature of combustion air make hotblast stove reach the requirement of high wind-warm syndrome.
In order to solve the problems of the technologies described above, the utility model double-preheating system of heat accumulation type hot-blast furnace, this system contains two air thermophore, the AIR Proportional setter, the air T-valve, air mixer, the hotblast stove gas blower, two coal gas thermophore, the coal gas proportioner regulator, the coal gas T-valve, air and gas mixer, burner blower, the air thermophore comprises housing, burner and heat storage, burner is arranged on the top of housing, heat storage is arranged on enclosure interior, it between heat storage and the burner combustion chamber, side wall of combustion chamber is provided with air outlet, be positioned on the housing sidewall of heat storage below and be respectively equipped with smoke outlet and blast inlet, the import of the outlet of hotblast stove gas blower and AIR Proportional setter links, an outlet of AIR Proportional setter and an import of air mixer link, another outlet of AIR Proportional setter links with the import of air T-valve, an outlet of air T-valve and the blast inlet of an air thermophore link, another outlet of air T-valve links with the blast inlet of another air thermophore, two smoke outlets of two air thermophore are respectively by pipeline and valve and diffuse chimney and link, two air outlets of two air thermophore link by two other import of automatic stop valve and air mixer respectively, the outlet of air mixer and the burner of hotblast stove link, burner blower and combustion air house steward's a end links, two burners of two air thermophore link by flow control valve and combustion air house steward respectively, two burners of two air thermophore pass through flow control valve respectively, automatic stop valve and blast furnace gas main pipe link, and the lighter for ignition on two burners of two air thermophore links by automatic stop valve and igniting gas main respectively; The coal gas thermophore is identical with the structural shape of air thermophore, blast furnace gas enters from the import of coal gas proportioner regulator, an outlet of coal gas proportioner regulator and an import of air and gas mixer link, another outlet of coal gas proportioner regulator links with the import of coal gas T-valve, an outlet of coal gas T-valve and the blast inlet of a coal gas thermophore link, another outlet of coal gas T-valve links with the blast inlet of another coal gas thermophore, two smoke outlets of two coal gas thermophore are respectively by pipeline and valve and diffuse chimney and link, two air outlets of two coal gas thermophore link by two other import of automatic stop valve and air and gas mixer respectively, the outlet of air and gas mixer and the burner of hotblast stove link, two burners of two coal gas thermophore link by flow control valve and combustion air house steward respectively, two burners of two coal gas thermophore pass through flow control valve respectively, automatic stop valve and blast furnace gas main pipe link, and two burners of two coal gas thermophore link by automatic stop valve and igniting gas main respectively.
Described igniting gas main is provided with Hand-operated butterfly valve, and blast furnace gas main pipe is provided with Hand-operated butterfly valve.
Because said system has adopted air thermophore and coal gas thermophore, the heat that the blast furnace gas burning can be produced is accumulated in the heat storage like this, when combustion air and blast furnace gas during respectively by air thermophore and coal gas thermophore, the temperature of combustion air can be brought up to about 450 ℃, the temperature of blast furnace gas can be brought up to about 300 ℃, when the blast furnace gas of such about 450 ℃ combustion air and about 300 ℃ enters into hotblast stove and burns, its the highest dome temperature can reach 1450 ℃, wind-warm syndrome can reach 1200 ℃, thereby makes the air-supply of hotblast stove reach the requirement of high wind-warm syndrome.
Description of drawings
Fig. 1 is the structural representation of the utility model double-preheating system of heat accumulation type hot-blast furnace.
1. hotblast stove gas blowers among the figure, 2. AIR Proportional setter, 3. air T-valve, 4. air thermophore, 5. heat storage, 6. valve, 7. automatic stop valve, 8. automatic stop valve, 9. air thermophore, 10. burner, 11. valves, 12. hotblast stoves, 13. smoke outlet, 4. valve, 15. coal gas thermophore, 16. thermophore, 17. burners, 18. automatic stop valves, 19. valve, 20. coal gas thermophore, 21. automatic stop valves, 22. burner, 23. flow regulators, 24. coal gas T-valve, 25. the coal gas proportioner regulator, 26. flow regulators, 27. automatic stop valves, 28. automatic stop valve, 29. burner blowers, 30. Hand-operated butterfly valves, 31. Hand-operated butterfly valve, 32. blast furnace gas main pipes, 33. igniting gas mains, 34. air and gas mixer, 35. flow control valve, 36. automatic stop valves, 37. automatic stop valves, 38. flow control valve, 39. burner, 40. flow control valves, 41. automatic stop valves, 42. automatic stop valve, 43. the combustion air house steward, 44. air mixers, 45. flow control valves, 46. automatic stop valve, 47. automatic stop valve, 48. flow control valves, 49. flow control valves, 50. burner, 51. diffuse chimney.
Embodiment
Among Fig. 1, double-preheating system of heat accumulation type hot-blast furnace, this system contains air thermophore 4, air thermophore 9, AIR Proportional setter 2, air T-valve 3, air mixer 44, hotblast stove gas blower 1, coal gas thermophore 15, coal gas thermophore 20, coal gas proportioner regulator 25, coal gas T-valve 24, air and gas mixer 34, burner blower 29.Air thermophore 4 is identical with air thermophore 9 structural shapes.With air thermophore 4 is example, air thermophore 4 comprises housing, burner 50 and heat storage 5, burner 50 is arranged on the top of housing, heat storage 5 is arranged on enclosure interior, be the combustion chamber between heat storage 5 and the burner 50, side wall of combustion chamber is provided with air outlet, is positioned on the housing sidewall of heat storage 5 belows to be respectively equipped with smoke outlet and blast inlet.The import of the outlet of hotblast stove gas blower 1 and AIR Proportional setter 2 links, and an outlet of AIR Proportional setter 2 and an import of air mixer 44 link, and another outlet of AIR Proportional setter 2 links with the import of air T-valve 3.The outlet of air T-valve 3 and the blast inlet of air thermophore 4 link, and another outlet of air T-valve 3 links with the blast inlet of air thermophore 9.Two smoke outlets of air thermophore 4 and air thermophore 9 respectively by pipeline and valve 6 and valve 11 with diffuse chimney 51 and link.Two air outlets of air thermophore 4 and air thermophore 9 link by two other import of automatic stop valve 7 and automatic stop valve 8 and air mixer 44 respectively.The burner 39 of the outlet of air mixer 44 and hotblast stove 12 links.Burner blower 29 links with an end of combustion air house steward 43.The burner 50 of air thermophore 4 and the burner 10 of air thermophore 9 link with combustion air house steward 43 by flow control valve 48 and flow control valve 45 respectively.The burner 50 of air thermophore 4 and the burner 10 of air thermophore 9 link with blast furnace gas main pipe 32 by flow control valve 49, automatic stop valve 47 and flow control valve 40, automatic stop valve 41 respectively.Lighter for ignition on the lighter for ignition on the burner 50 of air thermophore 4 and the burner 10 of air thermophore 9 links with igniting gas main 33 by automatic stop valve 46 and automatic stop valve 42 respectively.Coal gas thermophore 15 is identical with the structural shape of air thermophore 4 with coal gas thermophore 20.Blast furnace gas enters from the import of coal gas proportioner regulator 25, and an outlet of coal gas proportioner regulator 25 and an import of air and gas mixer 34 link, and another outlet of coal gas proportioner regulator 25 links with the import of coal gas T-valve 24.The outlet of coal gas T-valve 24 and the blast inlet of coal gas thermophore 20 link, and another outlet of coal gas T-valve 24 links with the blast inlet of coal gas thermophore 15.Two smoke outlets of coal gas thermophore 20 and coal gas thermophore 15 respectively by pipeline and valve 19 and valve 14 with diffuse chimney 51 and link.Two air outlets of coal gas thermophore 20 and coal gas thermophore 15 link by two other import of automatic stop valve 21 and automatic stop valve 18 and air mixer 34 respectively.The burner 39 of the outlet of air mixer 34 and hotblast stove 12 links.The burner 22 of coal gas thermophore 20 and the burner 17 of coal gas thermophore 15 link with combustion air house steward 43 by flow control valve 23 and flow control valve 35 respectively.The burner 22 of coal gas thermophore 20 and the burner 17 of coal gas thermophore 15 link with blast furnace gas main pipe 32 by flow control valve 26, automatic stop valve 28 and flow control valve 38, automatic stop valve 37 respectively.Lighter for ignition on the lighter for ignition on the burner 22 of coal gas thermophore 20 and the burner 17 of coal gas thermophore 15 links with igniting gas main 33 by automatic stop valve 27 and automatic stop valve 36 respectively.In this example, for safety, igniting gas main 33 is provided with Hand-operated butterfly valve 31, and blast furnace gas main pipe 32 is provided with Hand-operated butterfly valve 30.The smoke outlet 13 of hotblast stove 12 by pipeline with diffuse chimney 51 and link.When starting working, at first blast furnace gas and combustion air being entered into air thermophore 4, air thermophore 9, coal gas thermophore 15 and coal gas thermophore 20 burns, the hot flue gas that forms after the burning passes through heat storage separately downwards, and heat is accumulated in the heat storage, be drained into from smoke outlet with cold flue gas at last and diffuse the chimney 51.During works better, after the 4 burning accumulation of heats of air thermophore are held completely, air thermophore 9 accumulation of heat of burning again, at this moment enter into the normal temperature air of air thermophore 4 inside through the blast inlet of air thermophore 4 from an outlet of air T-valve 3, be heated to form warm air during by heat storage 5, enter in the air mixer 44 from the air outlet of air thermophore 4, after normal temperature air in a outlet from AIR Proportional setter 2 enters into air mixer 44 mixes, its blended warm air enters into the burner 39 of hotblast stove 12 from the outlet of air mixer 44, and the temperature of combustion-supporting warm air that at this moment enters into the burner 39 of hotblast stove 12 is about 450 ℃; Heat supply decline when air thermophore 4, make when temperature is lower than set(ting)value in the air mixer 44, air T-valve 3 switches on the air thermophore 9, at this moment enter into the normal temperature air of air thermophore 9 inside through the blast inlet of air thermophore 9 from another outlet of air T-valve 3, be heated to form warm air during by heat storage, enter in the air mixer 44 from the air outlet of air thermophore 9, after normal temperature air in a outlet from AIR Proportional setter 2 enters into air mixer 44 mixed, its blended warm air entered into the burner 39 of hotblast stove 12 from the outlet of air mixer 44.Air thermophore 4 and air thermophore 9 are with the mode work of cycle operation, i.e. during air thermophore 4 heat releases, and the 9 burning accumulation of heats of air thermophore, vice versa.The mode of operation of the mode of operation of coal gas thermophore 15 and coal gas thermophore 20 and air thermophore 4 and air thermophore 9 is identical, no longer repeats here.Blast furnace gas enters into air and gas mixer 34 after heating by coal gas thermophore 15 or coal gas thermophore 20, after blast furnace gas that a outlet from coal gas proportioner regulator 25 enters into air and gas mixer 34 mixes, enter in the burner 39 of hotblast stove 12, at this moment the temperature of blast furnace gas is about 300 ℃, combustion-supporting warm air mixed firing with about 450 ℃ that enter from air mixer 44, its the highest dome temperature can reach 1450 ℃, wind-warm syndrome can reach 1200 ℃, thereby makes hotblast stove reach the requirement of high wind-warm syndrome.
Claims (2)
1. double-preheating system of heat accumulation type hot-blast furnace, it is characterized in that: this system contains two air thermophore, the AIR Proportional setter, the air T-valve, air mixer, the hotblast stove gas blower, two coal gas thermophore, the coal gas proportioner regulator, the coal gas T-valve, air and gas mixer, burner blower, the air thermophore comprises housing, burner and heat storage, burner is arranged on the top of housing, heat storage is arranged on enclosure interior, it between heat storage and the burner combustion chamber, side wall of combustion chamber is provided with air outlet, be positioned on the housing sidewall of heat storage below and be respectively equipped with smoke outlet and blast inlet, the import of the outlet of hotblast stove gas blower and AIR Proportional setter links, an outlet of AIR Proportional setter and an import of air mixer link, another outlet of AIR Proportional setter links with the import of air T-valve, an outlet of air T-valve and the blast inlet of an air thermophore link, another outlet of air T-valve links with the blast inlet of another air thermophore, two smoke outlets of two air thermophore are respectively by pipeline and valve and diffuse chimney and link, two air outlets of two air thermophore link by two other import of automatic stop valve and air mixer respectively, the outlet of air mixer and the burner of hotblast stove link, burner blower and combustion air house steward's a end links, two burners of two air thermophore link by flow control valve and combustion air house steward respectively, two burners of two air thermophore pass through flow control valve respectively, automatic stop valve and blast furnace gas main pipe link, and the lighter for ignition on two burners of two air thermophore links by automatic stop valve and igniting gas main respectively; The coal gas thermophore is identical with the structural shape of air thermophore, blast furnace gas enters from the import of coal gas proportioner regulator, an outlet of coal gas proportioner regulator and an import of air and gas mixer link, another outlet of coal gas proportioner regulator links with the import of coal gas T-valve, an outlet of coal gas T-valve and the blast inlet of a coal gas thermophore link, another outlet of coal gas T-valve links with the blast inlet of another coal gas thermophore, two smoke outlets of two coal gas thermophore are respectively by pipeline and valve and diffuse chimney and link, two air outlets of two coal gas thermophore link by two other import of automatic stop valve and air and gas mixer respectively, the outlet of air and gas mixer and the burner of hotblast stove link, two burners of two coal gas thermophore link by flow control valve and combustion air house steward respectively, two burners of two coal gas thermophore pass through flow control valve respectively, automatic stop valve and blast furnace gas main pipe link, and two burners of two coal gas thermophore link by automatic stop valve and igniting gas main respectively.
2. double-preheating system of heat accumulation type hot-blast furnace according to claim 1 is characterized in that: described igniting gas main is provided with Hand-operated butterfly valve, and blast furnace gas main pipe is provided with Hand-operated butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200223581U CN201648428U (en) | 2010-01-21 | 2010-01-21 | Double-preheating system of regenerative air heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200223581U CN201648428U (en) | 2010-01-21 | 2010-01-21 | Double-preheating system of regenerative air heating furnace |
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| Publication Number | Publication Date |
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| CN201648428U true CN201648428U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200223581U Expired - Fee Related CN201648428U (en) | 2010-01-21 | 2010-01-21 | Double-preheating system of regenerative air heating furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300094A (en) * | 2015-11-20 | 2016-02-03 | 赵艳枫 | External combustion heat accumulating type double-beam shaft kiln |
-
2010
- 2010-01-21 CN CN2010200223581U patent/CN201648428U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300094A (en) * | 2015-11-20 | 2016-02-03 | 赵艳枫 | External combustion heat accumulating type double-beam shaft kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160120 Address after: 224015, No. 6, dragon road, Yancheng City, Jiangsu Province Patentee after: Jiangsu Hongda Gaojing Machine Tool Co., Ltd. Address before: 224055 Yongchang West Branch, Yancheng City, Jiangsu Province Patentee before: Jiangsu Best Environmental Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |