CN207395493U - Totally-enclosed vertical air cooling kiln for sinter - Google Patents
Totally-enclosed vertical air cooling kiln for sinter Download PDFInfo
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- CN207395493U CN207395493U CN201721455343.2U CN201721455343U CN207395493U CN 207395493 U CN207395493 U CN 207395493U CN 201721455343 U CN201721455343 U CN 201721455343U CN 207395493 U CN207395493 U CN 207395493U
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- 238000001816 cooling Methods 0.000 title claims abstract description 121
- 238000005192 partition Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005245 sintering Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
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Abstract
The utility model relates to a totally-enclosed vertical air cooling kiln for sintering ores, which belongs to the technical field of metallurgical production, and comprises a cooling kiln body, wherein the cooling kiln body is hollow, and comprises a feeding area and a cooling area; the cooling kiln body is provided with at least two cold air units, the upper end of the cooling kiln body is provided with a feeding sealing bin, a hot air heat dissipation unit is arranged in the cooling kiln body, and the hot air heat dissipation unit penetrates through the cooling kiln body; the cold air unit comprises a cold air inlet air pipe and a cold air grate bar group, and the cold air grate bar group is positioned at the joint of the cold air inlet air pipe and the cooling kiln body; the hot air radiating unit comprises a hot air outlet air pipe, a hot air accommodating column and a hot air grate bar group, the hot air accommodating column is positioned inside the cooling kiln body, the hot air outlet air pipe is connected with the cooling kiln body, and the hot air grate bar group is positioned on the hot air accommodating column. The utility model discloses a totally closed cooling of sintering deposit has simplified equipment structure, has investment province, the reliable advantage of operation, has reduced workman's intensity, has improved site environment, has improved work efficiency.
Description
Technical field
The utility model is related to a kind of totally-enclosed vertical air cooling kilns of sinter, belong to technical field of metallurgical production.
Background technology
Cooling process is the critical process of sinter production, and design, material and the technique of cooling device determine bosher
The comprehensive performance of sequence.Current sinter cooling device mainstream is to use ring cold machine, and heat sinter is first uniform in circular cooler trolley
Cloth is rotated by trolley, and heat sinter is passed sequentially through each cooling section, is generally divided into 4 sections, realizes heat sinter cooling.
During trolley rotating operation, there are larger face of leaking out between trolley and between trolley and cool wind box, cooling wind is caused
A large amount of leakages, air leak rate of air curtain is generally 40% or so.Existing conventional sintering ring cold machine there is because air leak rate of air curtain is high, utilization rate of waste heat is low,
The protrusions such as heat sinter cools down high energy consumption, the big site environment of dust emission is severe, labor strength is big, dust pollution is serious lack
It falls into, and device structure is complicated, high failure rate and working service are of high cost, with the continuous demand and ring of metallurgy industry energy-saving and emission-reduction
The continuous reinforcement of packing pressure, the development and utilization of novel sintered ore deposit cooling device increasingly obtain the attention of people.
Therefore, to solve the above problems, reducing labor strength and production cost, improve working environment and reduce dirty
Dye is badly in need of a kind of novel device for heat sinter cooling of exploitation.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of totally-enclosed vertical air cooling kiln of sinter.
The technical solution of the utility model is as follows：
A kind of totally-enclosed vertical air cooling kiln of sinter including cooling down kiln body, cools down kiln body inner hollow, cools down kiln body bag
Include feeding area and cooling zone；
It cools down kiln body and is equipped at least two cold wind units, cooling kiln body upper end is equipped with feeding and seals storehouse, cools down inside kiln body
Equipped with hot wind heat-sink unit, hot wind heat-sink unit is through cooling kiln body；
Cold wind unit includes cold air inlet air hose and cold wind grid section group, and cold wind grid section group is located at cold air inlet air hose and cooling
Kiln body junction；Hot wind heat-sink unit includes hot-blast outlet air hose, hot wind houses column and hot wind grid section group, and hot wind houses column and is located at
It cools down inside kiln body, hot-blast outlet air hose is connected with cooling kiln body, and hot wind grid section group is located at hot wind and houses on column.
Sinter enters feeding envelope Cang Chu from top, and under the space between cooling kiln body and hot wind heat-sink unit
Fall, cold wind is entered from cold air inlet air hose inside cooling kiln body, and heat exchange, cold wind and heat sinter heat exchange are carried out with sinter
Afterwards, hot wind is discharged through hot wind grid section group and hot-blast outlet pipeline, and sinter is dropped out from cooling kiln body bottom, realizes heat sinter
Cooling.
Preferred according to the utility model, it is hollow, rectangular column or circular columns or diamond shape that cooling kiln body, hot wind, which house column,
Column or polygon column, the axis of cold air inlet air hose and the axis of hot-blast outlet air hose are orthogonal.Hot wind heat-sink unit is located at
It cools down inside kiln body and runs through cooling kiln body, hot wind heat-sink unit is with cold wind unit in 90 degree of interspersed settings.
Preferred according to the utility model, cooling kiln body bottom is equipped with discharge bin, and discharge bin is located at cooling kiln body bottom sides
Edge and hot wind are housed between the edge of column bottom and hot wind houses column bottom.
Preferred according to the utility model, hot wind houses column top equipped with tripper, and the vertical section of tripper is triangle.
It is further preferred that tripper bottom is located at same level with feeding envelope orlop portion.Sinter is filled into feeding
In Feng Cang regions, tripper is used for sinter point to both sides, and sinter is avoided to house column top accumulation in hot wind.
Preferred according to the utility model, the grid section in cold wind grid section group is obliquely installed horizontal by angle, with cold wind
Grid section horizontal level similar in entrance air hose is higher than and grid section horizontal level similar in cooling kiln body inside.Grid section is gradient, makes
Cold wind is downwardly into.
It is further preferred that the slanted angle of grid section is 25-35 degree, it is 30 degree that re-optimization, which chooses angle,.
Preferred according to the utility model, hot wind houses column and is internally provided with subregion partition plate, and subregion partition plate includes being symmetrical arranged
Two inclined guide plates.Cold wind and high temperature air after sinter heat exchange, can carry a certain amount of dust particles secretly, into hot wind grid section
The sectorized bulkhead apertures of little particle sinter in group drop down onto down bottom discharge warehouse receipt and solely draw off step by step, avoid little particle sinter
It is accumulated in hot wind grid section group and hot air duct.
Preferred according to the utility model, cold air inlet air hose is identical with the quantity of hot-blast outlet air hose, and to be sintered hand
Volume optimizes circulation area for specification by wind speed, on the premise of drag minimization, balances air quantity input and output.
It is further preferred that the horizontal plane where subregion partition plate is between two neighboring hot-blast outlet air hose.Avoid height
Cryogenic air mixing reduces the temperature of high-temperature flue gas, influences the efficiency of residual neat recovering system.
Preferred according to the utility model, the height in feeding envelope storehouse is 1.5m to 2m.Sinter is filled into the region, is formed
The certain thickness bed of material, so as to realize the sealing of top cooling wind using the thickness of feed layer.
It is as follows including step when being made using the totally-enclosed vertical air cooling firer of above-mentioned sinter：Heat sinter is transported to cold
But above kiln body, and the certain thickness bed of material is formed in feeding envelope storehouse, the sinter of feeding Feng Cang lower parts is distinguished through tripper
Space between cooling kiln body and hot wind heat-sink unit, cooling wind enter through cooling air inlet air hose and cold wind grid section group,
After cold wind and heat sinter heat exchange, hot wind is discharged through hot wind grid section group and hot-blast outlet air hose, realize heat sinter cooling and
Waste heat recovery.
The beneficial effects of the utility model are：
The technical solution of the utility model makes full use of existing ring cold machine cooling principle, Flow Field Distribution, design specification and platform
Bassinet structure shape is transformed again, and two area multistage cooling zones are set in present apparatus frame structure, and use for reference palletizing shaft furnace
Furnace type structure, realization can cool down sinter under the conditions of totally-enclosed, and air leak rate of air curtain can be controlled within 5%, the reality of the air leak rate of air curtain
Existing, can largely reduce sinter cooling process can disappear, and prevents reentrainment of dust and significantly improve industrial environment,
Then the labor intensity and working condition of worker is reduced.Wind is cooled down under sealing condition more fully to exchange heat with sinter, carried
Sintering waste heat organic efficiency is risen, improves the temperature that wind-warm syndrome provides heat source needs for sintering denitrating flue gas.Sinter is totally-enclosed vertical
Air cooling kiln body movement-less part, greatly simplifies device structure compared with ring cold machine, has reduced investment, reliable
Advantage can further reduce sinter cooling process cost.
Description of the drawings
Fig. 1 is the totally-enclosed vertical air cooling kiln overall schematic of sinter described in the utility model；
Fig. 2 is the top view of the totally-enclosed vertical air cooling kiln of sinter described in the utility model；
In figure：1st, feeding envelope storehouse, 2, cold air inlet air hose, 3, cold wind grid section group, 4, subregion partition plate, 5, discharge bin, 6, point
Glassware, 7, hot wind grid section group, 8, hot-blast outlet air hose, 9, hot wind house column.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the technical solution in embodiment is clearly and completely described, shown
So, described embodiment is only part of the embodiment, instead of all the embodiments.Embodiment based in, this field
Those of ordinary skill's all other embodiments obtained without making creative work belong to the model of protection
It encloses.
Embodiment 1：
A kind of totally-enclosed vertical air cooling kiln of sinter including cooling down kiln body, cools down kiln body inner hollow, cools down kiln body bag
Include feeding area and cooling zone；It cools down kiln body and is equipped with eight cold wind units, as shown in Figure 1, kiln body is symmetrical respectively sets in cooling
Four are put, cooling kiln body upper end is equipped with feeding and seals storehouse 1, and cooling kiln body is internally provided with hot wind heat-sink unit, and hot wind heat-sink unit passes through
Wear cooling kiln body.
Cold wind unit include cold air inlet air hose 2 and cold wind grid section group 3, cold wind grid section group 3 be located at cold air inlet air hose 2 and
Cool down kiln body junction；Hot wind heat-sink unit includes hot-blast outlet air hose 8, hot wind houses column 9 and hot wind grid section group 7, and hot wind holds
It puts column 9 to be located inside cooling kiln body, hot-blast outlet air hose 8 is connected with cooling kiln body, and hot wind grid section group 7 houses column 9 positioned at hot wind
On.Grid section material can be the heat-resistant antifrictions all materials such as heat resisting cast steel, ball milling iron, ceramics.
Cold air inlet air hose 2 is identical with the quantity of hot-blast outlet air hose 8, and excellent by wind speed by specification of sintering process design handbook
Change circulation area, balance air quantity input and output, and drag minimization.Cold wind hot wind forms air passage inlet and outlet.
Sinter enters feeding envelope Cang Chu from top, and under the space between cooling kiln body and hot wind heat-sink unit
Fall, cold wind is entered from cold air inlet air hose inside cooling kiln body, and heat exchange, cold wind and heat sinter heat exchange are carried out with sinter
Afterwards, hot wind is discharged through hot wind grid section group and hot-blast outlet pipeline, and sinter is dropped out from cooling kiln body bottom, realizes heat sinter
Cooling and waste heat recovery.
It is used in fixed hot wind grid section group that hot wind, which houses column, and structure is hollow posts, and hot wind houses column top and belongs to high temperature section
(the hot-blast outlet air hose section area of top two), the hot wind for belonging to high temperature section house column column body increase setting water cooling or air-cooled cold
But mode avoids hot wind from housing column barrel temperatures excessively high.The axis of cold air inlet air hose and the axis of hot-blast outlet air hose are mutual
Vertically.Hot wind heat-sink unit is located inside cooling kiln body and through cooling kiln body, as shown in Fig. 2, hot wind heat-sink unit and cold wind
Unit after heat sinter enters from top, moves towards to cool down the space of the right and left inside kiln body in Fig. 2 in 90 degree of interspersed settings
It is interior.
In the present embodiment, 7200 tons of calculating of heat sinter are per diem handled, the height in feeding envelope storehouse is 2m, to form the thickness
The bed of material, the width of the bed of material is 5m, cools down size 5m × 5m × 12m (length) of kiln body.
Air inlet is symmetrical each 4 in the present embodiment, and sinter dosage is 7200t/d at this time.
It is as follows including step when being made using the totally-enclosed vertical air cooling firer of the sinter described in the present embodiment：Thermal sintering
Ore deposit is transported to above cooling kiln body, and the certain thickness bed of material is formed in feeding envelope storehouse, the sinter warp of feeding Feng Cang lower parts
Tripper respectively enters the space between cooling kiln body and hot wind heat-sink unit, and cooling wind is combed through cooling air inlet air hose and cold wind
Item group enters, and after cold wind and heat sinter heat exchange, hot wind is discharged through hot wind grid section group and hot-blast outlet air hose, realizes heat sinter
Cooling.Air leak rate of air curtain is no more than 5% in entire cooling procedure.
Embodiment 2：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that cooling kiln body
Bottom is equipped with discharge bin, and discharge bin is located at cooling kiln body bottom margin and hot wind houses between the edge of column bottom and hot wind houses
Column bottom.
Embodiment 3：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that hot wind houses
Column top is equipped with tripper, and the vertical section of tripper is triangle.
Embodiment 4：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 3, the difference is that tripper bottom
Portion is located at same level with feeding envelope orlop portion.Sinter is filled into feeding Feng Cang regions, and tripper is used for sinter
Divide to both sides, sinter is avoided to house column top accumulation in hot wind.
Embodiment 5：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that cold wind grid section
Grid section in group is obliquely installed horizontal by angle, and the slanted angle of grid section is 30 degree, with cold air inlet air hose similar in comb
Horizontal level be higher than and cooling kiln body inside similar in grid section horizontal level.Grid section is gradient, is downwardly into cold wind.
Embodiment 6：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that hot wind houses
Column is internally provided with subregion partition plate, and subregion partition plate includes symmetrically arranged two inclined guide plates.Wind and temperature liter after sinter heat exchange
Height can carry dust particles secretly, and bottom is dropped down onto down step by step into the sectorized bulkhead apertures of little particle sinter in hot wind grid section group,
Little particle sinter is avoided to be accumulated in hot wind grid section group and hot air duct and the mixing of the hot wind of different temperatures, reduction high-temperature hot-air
Quality.Horizontal plane where subregion partition plate is between two neighboring hot-blast outlet air hose.
Embodiment 7：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that cooling kiln body,
It is circular columns that hot wind, which houses column,.
Embodiment 8：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that cooling kiln body,
It is polygon column that hot wind, which houses column,.
Embodiment 9：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 5, the difference is that grid section inclines
Oblique angle is 25 degree.
Embodiment 10：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 5, the difference is that grid section inclines
Oblique angle is 35 degree.
Embodiment 11：
A kind of totally-enclosed vertical air cooling kiln of sinter, structure as described in Example 1, the difference is that feeding seal storehouse
Height be 1.5m.
Comparative example 1
The structure of existing ring cold machine is that circular cooler trolley is mounted on ring cold machine circular orbit, and trolley carrying heat is burnt
Knot ore deposit is run on circular orbit, passes sequentially through and bellows are set below trolley, and cooling wind passes through under bellows and circular cooler trolley
Surface castor item group penetrates thermal sintering ore bed, realizes the cooling and waste heat recovery of heat sinter, and the structure type of ring cold machine determines,
It is doing there are a huge static and dynamic sealing face between the trolley of circulatory motion and fixed bellows, and the sealing surface works
Environment is extremely severe, and high temperature, high dust cause the sealing surface frequent failure, cooling wind is caused largely to leak, air leak rate of air curtain is up to
40%.
Experimental example
Using the apparatus structure and method of the present embodiment 1, actual production operation is carried out, with utilizing setting described in comparative example 1
It is standby to carry out cooling operations, under same sinter dosage 7200t/d, analysis below data can be obtained：
1 cooling operations data comparison of table
From the foregoing, it will be observed that the equipment cooling effect of the utility model is up to standard, air leak rate of air curtain is greatly reduced, and energy consumption reduces.It adopts
Sinter can be cooled down under the conditions of totally-enclosed with the utility model realization, air leak rate of air curtain can be controlled within 5%, the air leak rate of air curtain
It realizes, can largely reduce sinter cooling process can disappear, and prevents reentrainment of dust and significantly improve industry spot ring
Border then reduces the labor intensity and working condition of worker.
While there has been shown and described that embodiment, for the ordinary skill in the art, it is possible to understand that
Can these embodiments be carried out with the scope of a variety of change, modification, replacement and modification in the case of the principle and spirit that do not depart from
It is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of totally-enclosed vertical air cooling kiln of sinter, which is characterized in that including cooling kiln body, kiln body inner hollow is cooled down,
Cooling down kiln body includes feeding area and cooling zone；
It cools down kiln body and is equipped at least two cold wind units, cooling kiln body upper end is equipped with feeding and seals storehouse, and cooling kiln body is internally provided with
Hot wind heat-sink unit, hot wind heat-sink unit is through cooling kiln body；
Cold wind unit includes cold air inlet air hose and cold wind grid section group, and cold wind grid section group is located at cold air inlet air hose and cooling kiln body
Junction；Hot wind heat-sink unit includes hot-blast outlet air hose, hot wind houses column and hot wind grid section group, and hot wind houses column and is located at cooling
Inside kiln body, hot-blast outlet air hose is connected with cooling kiln body, and hot wind grid section group is located at hot wind and houses on column.
2. the totally-enclosed vertical air cooling kiln of sinter according to claim 1, which is characterized in that cooling kiln body, hot wind hold
It is hollow, rectangular column or circular columns or rhombus column or polygon column to put column, the axis of cold air inlet air hose and hot-blast outlet air hose
Axis it is orthogonal.
3. the totally-enclosed vertical air cooling kiln of sinter according to claim 1, which is characterized in that cooling kiln body bottom is equipped with
Discharge bin, discharge bin is located at cooling kiln body bottom margin and hot wind houses between the edge of column bottom and hot wind houses column bottom.
4. the totally-enclosed vertical air cooling kiln of sinter according to claim 1, which is characterized in that hot wind houses column top and sets
There is tripper, the vertical section of tripper is triangle；Tripper bottom is located at same level with feeding envelope orlop portion.
5. the totally-enclosed vertical air cooling kiln of sinter according to claim 1, which is characterized in that the comb in cold wind grid section group
Item is obliquely installed horizontal by angle, with cold air inlet air hose similar in grid section horizontal level be higher than and cooling kiln body inside phase
Near grid section horizontal level；The slanted angle of grid section is 25-35 degree.
6. the totally-enclosed vertical air cooling kiln of sinter according to claim 5, which is characterized in that slanted angle is 30 degree.
7. the totally-enclosed vertical air cooling kiln of sinter according to claim 1, which is characterized in that hot wind is housed and set inside column
There is subregion partition plate, subregion partition plate includes symmetrically arranged two inclined guide plates.
8. the totally-enclosed vertical air cooling kiln of sinter according to claim 7, which is characterized in that cold air inlet air hose and heat
The quantity of wind outlet air hose is identical.
9. the totally-enclosed vertical air cooling kiln of sinter according to claim 8, which is characterized in that the water where subregion partition plate
Plane is between two neighboring hot-blast outlet air hose.
10. the totally-enclosed vertical air cooling kiln of sinter according to claim 1, which is characterized in that feeding seals the height in storehouse
For 1.5m to 2m.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269307A (en) * | 2017-11-03 | 2019-01-25 | 山东耀华能源投资管理有限公司 | Totally-enclosed vertical air cooling kiln for sinter and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269307A (en) * | 2017-11-03 | 2019-01-25 | 山东耀华能源投资管理有限公司 | Totally-enclosed vertical air cooling kiln for sinter and working method thereof |
| CN109269307B (en) * | 2017-11-03 | 2024-03-08 | 山东耀华能源投资管理有限公司 | Totally-enclosed vertical air cooling kiln for sinter and working method thereof |
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Granted publication date: 20180522 Termination date: 20201103 |