CN200975671Y - Roasters for special for steel-smelting continuous casting pouring box blast furnace gas with heat recovery device - Google Patents
Roasters for special for steel-smelting continuous casting pouring box blast furnace gas with heat recovery device Download PDFInfo
- Publication number
- CN200975671Y CN200975671Y CNU2006200118413U CN200620011841U CN200975671Y CN 200975671 Y CN200975671 Y CN 200975671Y CN U2006200118413 U CNU2006200118413 U CN U2006200118413U CN 200620011841 U CN200620011841 U CN 200620011841U CN 200975671 Y CN200975671 Y CN 200975671Y
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- blast furnace
- burner
- gas
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- continuous casting
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a steelmaking continuous casting tundish B gas special roaster with an afterheat recovery plant. The utility model solves the problem of severe heat lost when the tundish is roasting, and has the advantages of compact structure, convenient operating and could recycle the waste gas afterheat being produced in tundish roasting, the afterheat heats the gas and combustion air which could greatly improved the roasting temperature and so on. The utility model consists of a gathering heat cover, a plurality of burners are arranged on the mentioned gathering heat cover along the pouring axis, the gathering heat cover is provided with at least one pore, and a gas preheater which is separately connected with burners and gas flue is arranged at the bottom end of the gathering heat cover.
Description
Technical field
The utility model relates to the employed continuous casting tundish of a kind of steel industry roaster, relates in particular to a kind of steel-making continuous casting tundish blast furnace gas Special Baking device with waste-heat recovery device.
Background technology
Along with the fast development of national economy, the energy consumption of iron and steel enterprises is also growing.And the international petroleum price is constantly soaring, to production cost, the profit generation influence greatly of enterprise.Therefore, seeking a kind of good method, blast furnace gas (claiming blast furnace waste gas in the past) is gone to substitute oil product, is a major issue of benefiting the nation and the people.
For a long time, China is always in the method for constantly exploring the reasonable utilization of blast furnace gas, but conventional roaster is owing to its unreasonable structure, and a large amount of heat energy that the waste gas that is produced after the fuel combustion carries directly are discharged in the air, have not only wasted the energy but also environment is caused very big thermal pollution.Because the calorific capacity of blast furnace gas is very low, directly the temperature of burning can only reach about 800 ℃, can't satisfy the needs of the production of continuous casting tundish baking, and very easily takes off fire, extinguishes.Therefore the user have to add high heating value gases such as the oil liquefied gas of some or natural gas and carry out multifuel combustion, brings bigger financial burden to enterprise, causes great energy waste.For reaching the needed baking temperature of industrial production, reduce a large amount of energy wastes, have only the waste gas residual heat that burning is produced to reclaim, with coal gas and the abundant preheating of combustion air.Be energy savings, can satisfy producing required temperature index again.Up to now also do not find a kind of effective way that can reclaim the tundish waste gas residual heat.
Summary of the invention
The purpose of this utility model is exactly to exist the problem that serious heat scatters and disappears in order to solve present tundish baking, provide a kind of have rational in infrastructure, easy to use, the waste gas residual heat that tundish is produced in the middle of bake process can be reclaimed, coal gas and combustion air are heated, thereby make the steel-making continuous casting tundish blast furnace gas Special Baking device of the band waste-heat recovery device of advantages such as baking temperature increases substantially.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of steel-making continuous casting tundish blast furnace gas Special Baking device with waste-heat recovery device, it has collector mat, and described collector mat is along several burners of casting axis arranged, and collector mat top has a pore at least, the gas preheating device is equipped with in the bottom, is connected with gas piping with burner respectively.
Described collector mat is installed on the liftable support, and internal partition is housed in it, and the gas preheating device is positioned at the internal partition bottom.
End on the described gas preheating device is provided with the coal gas distributing pipe and is connected with each burner, and its other end is provided with gas piping and is connected with blast furnace gas main pipe.
The center of described gas preheating device is provided with the burner reserved opening corresponding with at least one burner.
Depart from several burners of casting axis arranged on the described collector mat.
Depart from a side of the axis of casting on the described collector mat and arrange at least one burner.
Described burner passes collector mat and internal partition points to baked article.
Described pore is arranged in the both sides of burner, and the quantity of pore is greater than the quantity of burner.
Described pore be arranged in burner between, the quantity of pore is less than the quantity of burner.
The beneficial effects of the utility model are: this roaster can be lighted and normal combustion at normal temperatures fast, carries out the optimum optimization combination of waste heat recovery rapidly thereupon.This combination has not only reduced heat-energy losses, but also has improved the preheat temperature of coal gas and combustion air, the combustion reaction that makes fuel more rapidly, more abundant, thereby reach interaction, the optimum efficiency that brings out the best in each other.
After testing, the heat energy recovery rate in the waste gas is more than 80%, thereby greatly reduces the exhaust temperature of burnt gas, reduced the thermal pollution to environment significantly.Can make the temperature of blast furnace gas and combustion air improve 150～200 ℃, and baking temperature can be brought up to 950～1000 ℃.Having satisfied the required temperature index of industrial production preferably, is a kind of comparatively desirable roasting plant.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, 1. collector mat, 2. internal partition, 3. gas preheating device, 4. pore, 5. coal gas distributing pipe, 6. blast furnace gas pipeline, 7 burners.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment one:
Among Fig. 1, collector mat 1 is fixed on the liftable support, several burners 7 of collector mat 1 upper edge casting axis arranged, and along several pores 4 of casting axis arranged, pore 4 quantity are greater than the quantity of burner 7 in burner 7 both sides.Be the special shape of corresponding tundish, arrange at least one burner 7 in a side that departs from casting axis certain distance.Internal partition 2 places the relevant position that keeps certain distance in the collector mat 1 with the top.Gas preheating device 3 places a side of internal partition 2 bottoms, and blast furnace gas pipeline 6 passes collector mat 1 and internal partition 2, is connected with a side of gas preheating device 3.Coal gas distributing pipe 5 passes collector mat 1 and internal partition 2, is connected with the opposite side of gas preheating device 3, and the other end of coal gas distributing pipe 5 is connected with each burner 7.
Coal gas enters an end of gas preheating device 3 by blast furnace gas pipeline 6, in gas preheating device 3, do annularly flow, and be sent to each burner 7 through coal gas distributing pipe 5 from the other end, burner 7 has jet air inducing function, combustion air can be introduced automatically and be participated in burning in the burner 7, the flame that is produced sprays to tundish from the burner outlet of burner 7 bottoms and toasts.The high-temp waste gas that the baking back is produced is received by collector mat 1 because of hot gas rises, hot gas is stranded in below the internal partition 2, combustion air between coal gas in the gas preheating device and collector mat 1 and the internal partition 2 is heated, thereby play the heated in pairs effect of coal gas and combustion air that makes.
Dispose the blast furnace gas special nozzle 7 of air inducing automatically because of the utility model again, thereby saved the combustion fan of traditional roasting plant.Combustion air flows between collector mat 1 and dividing plate 2, and finally flows in the burner 7 because the powerful negative pressure that fluidic device is produced in the burner 7 forces combustion air to suck in the collector mat 1 through several pores 4.The quantity of pore 4 is greater than burner 7 quantity.Combustion air is in the middle of process of flowing, coal gas in gas preheating device 3, utilize the method for different transfer of heat, heat absorption in the waste gas is come, thereby reach the purpose of recovery waste heat, energy savings, also because coal gas and combustion air are heated in pairs, increased substantially baking temperature simultaneously, also satisfied preferably and produced required temperature index.
Embodiment two:
In the present embodiment, different with embodiment one is, is the special shape of corresponding tundish, departs from a side of casting axis certain distance on the collector mat 1 and arranges several burners 7.
Embodiment three:
In the present embodiment, different with embodiment one is, departs from a side of casting axis certain distance and arrange several pores 4 between burner 7, and pore 4 quantity are less than the quantity of burner 7.
Claims (9)
1, a kind of steel-making continuous casting tundish blast furnace gas Special Baking device with waste-heat recovery device, it has collector mat (1), it is characterized in that: described collector mat (1) is along casting several burners of axis arranged (7), collector mat (1) top has a pore (4) at least, gas preheating device (3) is equipped with in the bottom, is connected with gas piping (6) with burner (7) respectively.
2, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1, it is characterized in that: described collector mat (1) is installed on the liftable support, internal partition (2) is housed in it, and gas preheating device (3) is positioned at internal partition (2) bottom.
3, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1, it is characterized in that: the end on the described gas preheating device (3) is provided with coal gas distributing pipe (5) and is connected with each burner (7), and its other end is provided with gas piping (6) and is connected with blast furnace gas main pipe.
4, according to the steel-making continuous casting tundish blast furnace gas Special Baking device of claim 1 or 2 or 3 described band waste-heat recovery devices, it is characterized in that: the center of described gas preheating device (3) is provided with the burner reserved opening corresponding with at least one burner (7).
5, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1 is characterized in that: depart from casting several burners of axis arranged (7) on the described collector mat (1).
6, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1, it is characterized in that: a side that departs from the axis of casting on the described collector mat (1) is arranged at least one burner (7).
7, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1 and 2 is characterized in that: described burner (7) passes collector mat (1) and internal partition (2) points to baked article.
8, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1, it is characterized in that: described pore (4) is arranged in the both sides of burner (7), and the quantity of pore (4) is greater than the quantity of burner (7).
9, the steel-making continuous casting tundish blast furnace gas Special Baking device of band waste-heat recovery device according to claim 1 is characterized in that: described pore (4) be arranged in burner (7) between, the quantity of pore (4) is less than the quantity of burner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200118413U CN200975671Y (en) | 2006-11-28 | 2006-11-28 | Roasters for special for steel-smelting continuous casting pouring box blast furnace gas with heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200118413U CN200975671Y (en) | 2006-11-28 | 2006-11-28 | Roasters for special for steel-smelting continuous casting pouring box blast furnace gas with heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975671Y true CN200975671Y (en) | 2007-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200118413U Expired - Fee Related CN200975671Y (en) | 2006-11-28 | 2006-11-28 | Roasters for special for steel-smelting continuous casting pouring box blast furnace gas with heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975671Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111964A (en) * | 2016-08-12 | 2016-11-16 | 马斌 | A kind of towed ladle ferrum bag apparatus for baking |
| CN106111965A (en) * | 2016-08-12 | 2016-11-16 | 马斌 | Towed ladle ferrum bag apparatus for baking |
-
2006
- 2006-11-28 CN CNU2006200118413U patent/CN200975671Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111964A (en) * | 2016-08-12 | 2016-11-16 | 马斌 | A kind of towed ladle ferrum bag apparatus for baking |
| CN106111965A (en) * | 2016-08-12 | 2016-11-16 | 马斌 | Towed ladle ferrum bag apparatus for baking |
| CN106111964B (en) * | 2016-08-12 | 2018-08-10 | 马斌 | A kind of towed ladle iron packet apparatus for baking |
| CN106111965B (en) * | 2016-08-12 | 2018-08-10 | 马斌 | Towed ladle iron packet apparatus for baking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20131128 |