CN201811593U - Air cooling wall of feed bin of ring cold machine - Google Patents
Air cooling wall of feed bin of ring cold machine Download PDFInfo
- Publication number
- CN201811593U CN201811593U CN2010205411233U CN201020541123U CN201811593U CN 201811593 U CN201811593 U CN 201811593U CN 2010205411233 U CN2010205411233 U CN 2010205411233U CN 201020541123 U CN201020541123 U CN 201020541123U CN 201811593 U CN201811593 U CN 201811593U
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- air
- cooled wall
- air cooling
- cooling wall
- feed hopper
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Abstract
The utility model discloses an air cooling wall of a feed bin of a ring cold machine, which consists of a plurality of steel plates. The lower end of an air cooling wall bracket is provided with a wear-resistant and heat-resistant protection block which coats the whole bottom plate of the air cooling wall bracket and the lower end parts of side plates on two sides. The protection block is made of a wear-resistant and heat-resistant material and has high wear resistance and heat resistance. The protection block is low in manufacturing cost, easy to arrange, high in safety and reliability, and convenient to maintain. On structural design, the air cooling wall radically solves the problem of high-temperature burning of the bottom plate and the side plates on the two sides of the conventional air cooling wall, so that the service life of the air cooling wall is prolonged and the product quality is high.
Description
Technical field
The utility model relates to metallurgical briquetting central cooler technical field, the air-cooled wall of particularly a kind of well behaved central cooler feed hopper.
Background technology
At present, the central cooler feed hopper is the throat parts of central cooler, is made up of air-cooled wall, hopper, water-cooled beam, flat material mound and suspension bracket etc.The high temperature pellet that comes from rotary kiln enters into behind the kiln hood gravity flow screen in the feed hopper at first, under the effect of flat material mound, the hot-bulb nodulizing is distributed to one by one on the chassis equably, and the thickness of feed layer on each chassis is satisfied＜the 760mm requirement.Whole feed hopper the inside is built refractory brick by laying bricks or stones and is poured into a mould one deck refractory matter, and thickness reaches 230mm, plays the protection feed hopper.Air-cooled wall construction of central cooler feed hopper and effect brief introduction: air-cooled wall is with the body structure of heat-resistance stainless steel plate welding, provides cooling air by special air blast to box house, is used to take away the heat of box house and reduces spin manifold temperature.Air-cooled wall is the critical piece of feed hopper, and three kinds of effects are arranged:
1, the air-cooled wall of feed hopper is one barrier in branch thermal insulating district.The feed hopper temperature inside is at 1200 ℃～1300 ℃, the barrier of air-cooled wall is arranged after, can guarantee that blowpit, dump skip place temperature are in 120 ℃.
2, the air-cooled wall of feed hopper can guarantee effectively that the red ball of high temperature in the feed hopper is not excessive to discharge zone.The upper surface vertical range of the baseplane of air-cooled wall and bogie grates is 80mm, and the red ball of high temperature constantly leaves feed hopper with the chassis of running, enters ring cold I, II section and cools off.
3, the air-cooled wall of feed hopper can effectively stop the cold air of discharge zone (atmospheric region) to enter rotary kiln.Temperature in the feed hopper is up to 1300 ℃, and a large amount of waste heats is withdrawn in rotary kiln and the drying grate under the effect of technology blower fan again, and is recycling once more, can reduce process energy consumption.
The air-cooled wall of original feed hopper is to be made by smelting vast of heaven international project Co., Ltd (former Changsha Metallurgical Design ﹠ Research Institute) design in the Changsha, Wuhan Iron and Steel Plant Central China, Hubei heavy-duty machinery Co., Ltd in 2005, because of having defective in the design, make the bottom of whole and both sides side plate of air-cooled wall frame base plate directly be in 1200 ℃～1300 ℃ high temperature pellets, scaling loss is serious, the fault height, service life is short, has a strong impact on production.Be embodied in: 1, after the air-cooled wall distortion, the refractory brick of grazing circular cooler trolley and rotary body causes central cooler not turn round; 2, after the air-cooled wall scaling loss, lose.The high temperature pellet scaling loss belt conveyor that leaks down influences organization of production, and the potential safety hazard of bringing on-the-spot high temperature to scald; 3, after the air-cooled wall scaling loss, leak out.Cause in the feed hopper and the rotary kiln end temperature fluctuation big, influence technology controlling and process and product quality.
The defective of original air-cooled wall can further be seen clearly from Fig. 1, because steel plate 1, steel plate 4 and the steel plate 5 of air-cooled wall directly is in 1200 ℃～1300 ℃ the high temperature pellet, causes air-cooled wall to occur following technical problem in a short time:
1, steel plate 1 bottom and steel plate 2, steel plate 5 weld weld crackings, progressively sealing-off, and high-temperature oxydation perk distortion rapidly, steel plate 1 final serious grazing damages the refractory brick of central cooler a rotating body ring, even causes central cooler not move.
2, steel plate 4 bottoms and steel plate 2, steel plate 5 weld weld crackings, progressively sealing-off, and high-temperature oxydation perk distortion rapidly, steel plate 4 final serious grazings damage the refractory brick of central cooler rotary body outer shroud, even cause central cooler not rotate.
3, steel plate 5 is from a rotating body ring, outer shroud both sides weld cracking, sealing-off, and serious scaling loss distortion.Two kinds of consequences of final generation: the one, steel plate 5 distortion stay, grazing circular cooler trolley grid section upper surface, chassis can not turn round, and causes central cooler not work; The 2nd, steel plate 5 distortion are burnt, also large-area the burning in while steel plate 2 bottoms, cause the vertical range between air-cooled wall bottom and the bogie grates upper surface to be far longer than 80mm (design load), reached 300mm when the most serious, cause feed hopper to leak the red ball of high temperature, scaling loss belt conveyor, and the potential safety hazard of bringing the red ball of on-the-spot high temperature to scald; Simultaneously, it is serious to scurry wind, and cold air directly enters feed hopper, causes that the rotary kiln end temperature fluctuation is big, has a strong impact on production technology and product quality, and increases coal consumption.
The utility model content
The purpose of this utility model provides weld seam between a kind of air-cooled wall steel plate bottom air-cooled wall of central cooler feed hopper that the vertical range between sealing-off, steel plate not burning indeformable, air-cooled wall baseplane and the bogie grates upper surface not remains unchanged that do not ftracture, thereby can guarantee product quality, and energy consumption is descended.
The purpose of this utility model is realized by following technical scheme:
The air-cooled wall of this central cooler feed hopper is made of the welding of polylith steel plate, and unique distinction is: be provided with the protection piece of antiwear heat resisting in the lower end of air-cooled wall frame, the protection piece is wrapped in the bottom of the whole and both sides side plate of air-cooled wall frame base plate.The protection piece directly contacts with the high temperature pellet, can effectively protect base plate and both sides side plate to avoid the high temperature scaling loss, prevents weld cracking, sealing-off
Be shaped on the installing hole suitable with construction bolt on the described protection piece, the protection piece is assembled on the air-cooled wall frame by bolt and installing hole.
Described protection piece is six, and its structure is suitable with the position structure of being wrapped up.
Described protection piece is an ironcasting.
The beneficial effects of the utility model:
The utility model is on probation since 1 year, and its air-cooled wall is excellent, and air-cooled wall base plate and both sides side plate do not have any crackle and sealing-off phenomenon; Each protects the piece wear extent minimum, the intact non-loosening of connecting bolt, and air-cooled wall fault is zero, has guaranteed the pelletizing ordinary production, has significantly improved the operating rate of central cooler, has prolonged effective production time.Brought following direct economic benefit and indirect benefit:
1, the annual new profit is 2,910,000 yuan, reduces production costs 330,000 yuan.
2, guarantee safety.Novel air-cooled wall is not lost, and has eliminated the potential safety hazard that the on-the-spot red ball of central cooler is scalded, and has further created safety condition for the production scene.
3, be beneficial to consumption reduction.Novel air-cooled wall is not lost, and finished belt is avoided the high temperature scaling loss, has prolonged finished belt service life, has reduced consumption.
4, be beneficial to energy-conservation.Novel air-cooled wall does not leak out, and the heat in the feed hopper can be recycling fully to rotary kiln and drying grate, and injecting coal quantity has certain minimizing.
5, stabilised quality.Novel air-cooled wall does not leak out, and the rotary kiln end temperature stabilization helps organization of production and technology controlling and process, better stabilized product quality.
6, the amount of lightening one's labor.The Maintenance and Repair workload of novel air-cooled wall reduces greatly, has fundamentally alleviated worker's the maintenance amount of labour.
Description of drawings
Fig. 1 is the structural representation of the air-cooled wall of original feed hopper.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is the side-looking structural representation of Fig. 3.
Fig. 5 is the main TV structure schematic diagram of protection piece of the present utility model ().
Fig. 6 is the schematic side view of Fig. 5.
Fig. 7 is the schematic top plan view of Fig. 5.
Fig. 8 is the perspective view of protection piece of the present utility model ().
Fig. 9 is the main TV structure schematic diagram of protection piece of the present utility model (two).
Figure 10 is the schematic side view of Fig. 9.
Figure 11 is the schematic top plan view of Fig. 9.
Figure 12 is the perspective view of protection piece of the present utility model (two).
Figure 13 is the main TV structure schematic diagram of protection piece of the present utility model (three).
Figure 14 is the schematic side view of Figure 13.
Figure 15 is the schematic top plan view of Figure 13.
Figure 16 is the perspective view of protection piece of the present utility model (three).
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but embodiment should not be construed as restriction of the present utility model.
The disclosed structure of above Fig. 3～Figure 16 promptly is the concrete structure of the utility model embodiment.The corresponding relation of each label and parts is among the figure:
1～6-constitutes the steel plate of air-cooled wall; The air-cooled wall frame of 7-; The 8-bolt; The 9-nut; 10-protects piece (); 11-protects piece (two); 12-protects piece (three).
Consult Fig. 3, the utility model is the improvement of carrying out at the shown original air-cooled wall of Fig. 1:
1, improves air-cooled wall construction.The protection piece of six antiwear heat resistings is installed in the lower end of air-cooled wall frame, and (protection block structural diagram and 3 dimensional drawing are seen Fig. 5～Figure 16), the bottom that the protection piece wraps up the whole and both sides side plate (being steel plate 1 and the steel plate 4 among Fig. 1) of air-cooled wall frame base plate (being the steel plate 5 among Fig. 1) respectively.Because of the protection piece directly contacts with the high temperature pellet, thus can effectively protect base plate and both sides side plate to avoid the high temperature scaling loss, thus prevent weld cracking, sealing-off.
2, keep air-cooled wall appearance and size constant.Protect the vertical range of piece lower surface and bogie grates upper surface to remain unchanged (still being design load 80mm); Gap between both sides side plate and the rotary body refractory brick is constant; Air-cooled wall installation dimension is constant.
Should also be noted that during enforcement:
1, according to the design drawing requirement, the air-cooled wall frame 7 of welding processing, and process six antiwear heat resisting protection pieces 10～12.The material strictness of the steel plate material of air-cooled wall frame and protection piece must not arbitrarily be changed by drawing.The evenly welding continuously of all weld seams, weld bead height 12mm satisfies welding standard.
2, after air-cooled wall frame and protection piece are made and processed, with heat-resisting bolt 8 six protection pieces one by one are assembled on the air-cooled wall frame by drawing, the bottom that the protection piece wraps up the whole and both sides side plate of air-cooled wall frame base plate forms novel air-cooled wall.
3, at last novel air-cooled wall is done the ventilation leakage test, must not leak out.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.If of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also should comprise these changes and modification interior.
If the content that is not described in detail is arranged, should be those skilled in the art's technique known in this specification, repeat no more herein.
Claims (4)
1. the air-cooled wall of central cooler feed hopper is made of the polylith steel plate, it is characterized in that: be provided with the protection piece of antiwear heat resisting in the lower end of air-cooled wall frame, the protection piece is wrapped in the bottom of the whole and both sides side plate of air-cooled wall frame base plate.
2. the air-cooled wall of central cooler feed hopper as claimed in claim 1 is characterized in that: be shaped on the installing hole suitable with construction bolt on the above-mentioned protection piece, the protection piece is assembled on the air-cooled wall frame by bolt and installing hole.
3. the air-cooled wall of central cooler feed hopper as claimed in claim 1 or 2 is characterized in that: above-mentioned protection piece is six, and its structure is suitable with the position structure of being wrapped up.
4. the air-cooled wall of central cooler feed hopper as claimed in claim 1 or 2 is characterized in that: above-mentioned protection piece is an ironcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411233U CN201811593U (en) | 2010-09-21 | 2010-09-21 | Air cooling wall of feed bin of ring cold machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411233U CN201811593U (en) | 2010-09-21 | 2010-09-21 | Air cooling wall of feed bin of ring cold machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811593U true CN201811593U (en) | 2011-04-27 |
Family
ID=43894533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205411233U Expired - Fee Related CN201811593U (en) | 2010-09-21 | 2010-09-21 | Air cooling wall of feed bin of ring cold machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201811593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174002A (en) * | 2019-07-01 | 2019-08-27 | 马鞍山钢铁股份有限公司 | A kind of air-cooled ring cold machine partition wall combined with water cooling |
-
2010
- 2010-09-21 CN CN2010205411233U patent/CN201811593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174002A (en) * | 2019-07-01 | 2019-08-27 | 马鞍山钢铁股份有限公司 | A kind of air-cooled ring cold machine partition wall combined with water cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20170921 |