CN2453369Y - Vertical furnace with natural air circulation for cooling furnace body - Google Patents
Vertical furnace with natural air circulation for cooling furnace body Download PDFInfo
- Publication number
- CN2453369Y CN2453369Y CN 00256303 CN00256303U CN2453369Y CN 2453369 Y CN2453369 Y CN 2453369Y CN 00256303 CN00256303 CN 00256303 CN 00256303 U CN00256303 U CN 00256303U CN 2453369 Y CN2453369 Y CN 2453369Y
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- heater
- furnace body
- cooling
- furnace
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Abstract
The utility model relates to an improved structure of a furnace body of a shaft furnace for roasting pellets, which belongs to the technical field of ferrous metal smelting equipment. The utility model is formed by the method that a drying bed 4, a furnace top 5, a wind guide wall 6, a bocca 7, a bricklaying section furnace body 8, a combustion chamber 9, a combustion nozzle 10, a cooling wind pipe 11, a cooling section furnace body 12, a roller type unloader 13, a secondary cooler 14 and a furnace bottom 15 are connected orderly. The utility model is characterized in that the cooling section furnace body 12 is composed of a single-layer steel furnace body 1, a radiation fin 3 is fixed outside the steel furnace body 1, and upwarping type transverse baffles are bestrewed on the inner wall of the steel furnace body 1. The utility model has the advantages of water saving and electricity saving; owing to the baffles in the furnace body, protective life is long.
Description
The utility model relates to a kind of vertical furnace structural reform of roasting pelletizing and advances, and belongs to ferrous metal smelting equipment
Technical field.
Shaft furnace is to be used for the equipment of roasting iron ore pellets, and pelletizing is a kind of blast furnace ironmaking personnel selection agglomeration shape raw material.That shaft furnace process has is simple in structure, small investment, thermal efficiency height, convenient, the operating rate advantages of higher of operating maintenance.The green-ball that has certain particle size during work is transported to the shaft furnace top with belt feeder, be distributed into continuously, uniformly in the oven dry bed by material distributing machine, enter the green-ball in the shaft furnace, descend with a certain speed, hot gas in the combustion chamber sprays in the stove from burner, carries out heat exchange from bottom to top.Most of cooling air (hot blast) after the heat exchange is by air-guiding wall, converges under the fire grate of oven dry bed with the waste gas (after the heat exchange) of combustion chamber---dry green-ball, draw from fire door then, and through dedusting, feed smoke stack emission.At first process drying and dehydrating preheating oxidation in shaft furnace top oven dry bed of green-ball enters the roasting band then, at high temperature takes place fixed; Through the soaking zone, finish whole consolidation processes; Fixed good pelletizing and bottom blast the cooling air that in the stove rise in the back and carry out heat exchange and obtain cooling; Cooled finished pellet is discharged from furnace bottom; Finish the whole roasting process of pelletizing.
In prior art, the shaft furnace body of heater is made up of the section of laying bricks and water-cooling wall section body of heater, below the oven dry bed of shaft furnace furnace roof, preheating section, furnace zone, soaking zone, be the section of laying bricks body of heater up to the cooling air import with next segment distance (being generally about 1.5m), the shell of this section is a steel construction, the inner refractory brick of building, by the heat-resisting and heat-blocking action of refractory brick, the protection steel construction; Downward again one section is that (long approximately 2.5m) is water-cooling wall section body of heater about the roller-type discharging device.The furnace wall of this water-cooling wall section body of heater is welded by two-layered steel plates, middle water flowing cooling, and inner no refractory material is built by laying bricks or stones.Water-cooling wall section body of heater has following defective: (1) power consumption, water consumption are big, because the residing position of water-cooling wall absolute altitude is higher, increased the cooling water pump lift, power, the power consumption of water pump all increase under the identical condition of the water yield, and the problem big along with the nervous water consumption of water resource is more and more outstanding.(2) along with the deposition of incrustation scale, the cooling effect variation causes wall temperature to raise and makes the furnace wall distortion, when having a power failure suddenly, also can make water-cooling wall cut off the water supply and be out of shape.(3) the body of heater serious wear influences service life.
Goal of the invention of the present utility model is to provide a kind of shaft furnace of Natural Circulation air cooling body of heater rational in infrastructure, not water consumption, long service life.
Feature of the present utility model is that cooling section body of heater 12 is made up of individual layer steel body of heater 1, and the fixed outside of steel body of heater 1 has fin 3, is covered with bending upwards type diaphragm plate 2 around the inwall of steel body of heater 1.Overcome the defective that traditional water-cooling wall section body of heater has.
The utility model is achieved in that a kind of shaft furnace of Natural Circulation air cooling body of heater, comprises oven dry bed 4, furnace roof 5, wind-guiding moisture in the soil 6, bocca 7, the section of laying bricks body of heater 8, combustion chamber 9, burner 10, cooling duct 11, cooling section body of heater 12, roller-type discharging machine 13, recoler 14, furnace bottom 15 connects and composes successively, it is characterized in that cooling section body of heater 12 is made up of individual layer steel body of heater 1, the fixed outside of steel body of heater 1 has fin 3, is covered with bending upwards type diaphragm plate 2 around the inwall of steel body of heater 1.
During the utility model work, be covered with pelletizing in the bending upwards type diaphragm plate 2, reduced the heat that transmits to body of heater by in the stove, reduced the friction of pelletizing to body of heater, fin reduces furnace body temperature effectively, thereby has realized goal of the invention of the present utility model.
Because the utility model adopts the air cooling body of heater of Natural Circulation, thereby has the advantage of water saving, economize on electricity.Because of no incrustation scale influence, its cooling effect in use changes minimum, and when having a power failure, furnace body temperature can not raise, and there is dividing plate protection long service life body of heater inside.
The longitudinal sectional drawing of the cooling section body of heater of Figure of description 1 unabridged version utility model, the transverse cross-sectional view of accompanying drawing 2 sufficient cooling section bodies of heater, accompanying drawing 3 is shaft furnace structural representations.
Embodiment of the present utility model is referring to accompanying drawing 1,2.In the Figure of description: 1 steel body of heater, 2 bending upwards type diaphragm plates, 3 fin, 4 oven dry beds, 5 furnace roofs, 6 air-guiding walls, 7 boccas, 8 section of laying bricks bodies of heater, 9 combustion chambers, 10 burners, 11 cooling ducts, 12 cooling section bodies of heater, 13 roller-type discharging machines, 14 recolers, 15 furnace bottoms.The shaft furnace of natural air cooling body of heater comprises drying by the fire and leaves the bed 4, furnace roof 5, air-guiding wall 6, bocca 7, the section of laying bricks body of heater 8, combustion chamber 9, burner 10, cooling duct 11, cooling section body of heater 12, roller-type discharging machine 13, recoler 14, furnace bottom 15 connects and composes successively, cooling section body of heater 12 is made up of individual layer steel body of heater 1, and the fin 3 of the fixed outside of steel body of heater 1 is welded to connect, and is covered with bending upwards type diaphragm plate 2 around the inwall of steel body of heater 1.Bending upwards type diaphragm plate 2 adopts steel plate to make, 40 millimeters of width, and bending upwards type diaphragm plate 2 is about 45 degree with the angle of steel body of heater 1.
Claims (2)
1, a kind of shaft furnace of Natural Circulation air cooling body of heater, by oven dry bed (4), furnace roof (5) air-guiding wall (6), bocca (7), the section of laying bricks body of heater (8), combustion chamber (9), burner (10), cooling duct (11), cooling section body of heater (12), roller-type discharging machine (13), recoler (14), furnace bottom (15) connects and composes successively, it is characterized in that cooling section body of heater (12) is made up of individual layer steel body of heater (1), the fixed outside of steel body of heater (1) has fin (3), is covered with bending upwards type diaphragm plate (2) around the inwall of steel body of heater (1).
2, according to the shaft furnace of the described Natural Circulation air cooling of claim 1 body of heater, it is characterized in that bending upwards type diaphragm plate (2) adopts steel plate to make, 40 millimeters of width, bending upwards type diaphragm plate (2) is about 45 degree with the angle of steel body of heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256303 CN2453369Y (en) | 2000-11-08 | 2000-11-08 | Vertical furnace with natural air circulation for cooling furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256303 CN2453369Y (en) | 2000-11-08 | 2000-11-08 | Vertical furnace with natural air circulation for cooling furnace body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453369Y true CN2453369Y (en) | 2001-10-10 |
Family
ID=33613045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00256303 Expired - Fee Related CN2453369Y (en) | 2000-11-08 | 2000-11-08 | Vertical furnace with natural air circulation for cooling furnace body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453369Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466213A (en) * | 2015-12-04 | 2016-04-06 | 中国电子科技集团公司第四十八研究所 | Controllable cooling furnace body used for continuous sintering kiln |
| CN107955884A (en) * | 2017-11-20 | 2018-04-24 | 赤峰富邦铜业有限责任公司 | A kind of new oxygen-enriched side-blowing copper smelting-furnace furnace roof cooling device |
-
2000
- 2000-11-08 CN CN 00256303 patent/CN2453369Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466213A (en) * | 2015-12-04 | 2016-04-06 | 中国电子科技集团公司第四十八研究所 | Controllable cooling furnace body used for continuous sintering kiln |
| CN107955884A (en) * | 2017-11-20 | 2018-04-24 | 赤峰富邦铜业有限责任公司 | A kind of new oxygen-enriched side-blowing copper smelting-furnace furnace roof cooling device |
| CN107955884B (en) * | 2017-11-20 | 2019-08-13 | 赤峰富邦铜业有限责任公司 | A kind of novel oxygen-enriched side-blowing copper smelting-furnace furnace roof cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |