CN207815956U - A kind of full manage-style cold type gravity flow screen with heat-proof device - Google Patents
A kind of full manage-style cold type gravity flow screen with heat-proof device Download PDFInfo
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- CN207815956U CN207815956U CN201721735319.4U CN201721735319U CN207815956U CN 207815956 U CN207815956 U CN 207815956U CN 201721735319 U CN201721735319 U CN 201721735319U CN 207815956 U CN207815956 U CN 207815956U
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- Prior art keywords
- bearing
- heat
- proof device
- sieve nest
- sieve
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- 230000005484 gravity Effects 0.000 title claims abstract description 24
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 238000005453 pelletization Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
A kind of full manage-style cold type gravity flow screen with heat-proof device, belongs to the rotary kiln device technical field in pelletizing engineering.Including sieve nest beam, sieve plate, bearing, bearing backplate, blast pipe, heat-proof device and discharge pipe；There is sieve plate on sieve nest beam；Sieve nest beam and sieve plate are on bearing；There is bearing backplate on bearing；Blast pipe is located at the side of sieve nest beam；Heat-proof device is between sieve nest beam and sieve plate, for reducing the thermal radiation temperature of sieve nest beam tubular structure lower part；Sieve nest beam and bearing are tubular structure；Heat-proof device is that thickness 6~8mm stainless steel plates are bent.The advantage is that effectively reducing thermal radiation temperature and oxidation rate, prolongs the service life, reduce cost.
Description
Technical field
The utility model belongs to the rotary kiln device technical field in pelletizing engineering, more particularly to a kind of to carry heat-proof device
Full manage-style cold type gravity flow screen.
Background technology
Gravity flow screen belongs to the important component of rotary kiln in drying grate-rotary kiln-circular cooler oxide pelletizing process.Gu
Fixed sieve is mounted in rotary kiln head-shield, is mainly used for preventing the block of resistance to material that the bulk and damage that are formed in rotary kiln fall off to fall into
In ring cold machine feed hopper, the environment temperature being in direct contact can reach 1200 DEG C or so, under high temperature environment by flue gas, material
It impacts and corrodes, while temperature being passed to the gravity flow screen of carrying, gravity flow screen carries out water flowing cooling, avoids growing under high temperature environment
Time service is so that scaling loss.Gravity flow screen used at present has the shortcomings that following and deficiency：
1, existing gravity flow screen sieve nest beam and seat structure form are unreasonable, are all made of during stainless steel plate steel plate is welded
Empty water through structure, weld seam is longer more, and weld seam has intersection more, and weld stress is high, and long term high temperature environment influences, and is easy cracking,
Sieve nest beam and bearing leak are caused, causes gravity flow screen to stop water flowing cooling, and sieve nest beam and support material manufacturing expense are higher.
2, sieve nest beam and bearing lower section are larger by high-temperature flue gas erosion, and thermal radiation temperature is high, it is easier to commissure be caused to be opened
It splits, the service life of gravity flow screen is caused to reduce, and gravity flow screen is mounted on the inside of rotary kiln head-shield, need to stop production entirety more
It changes, inconvenience is brought to pelletizing plant's continuous production.
3, sieve nest beam and the bearing type of cooling cool down for water flowing, and in water resources shortage area, cost is higher.
Invention content
The purpose of this utility model is to provide a kind of full manage-style cold type gravity flow screens with heat-proof device, solve existing
The problem that gravity flow screen is complicated in technology, service life is short, water leakage ratio and material cost are high.
A kind of full manage-style cold type gravity flow screen with heat-proof device, including sieve nest beam 1, sieve plate 2, bearing 3, bearing backplate 4,
Blast pipe 5, heat-proof device 6 and discharge pipe 7.There are sieve plate 2, sieve plate 2 to avoid high temperature mainly for the protection of sieve nest beam 1 on sieve nest beam 1
The erosion of flue gas and material；Sieve nest beam 1 and sieve plate 2 are on bearing 3；There is bearing backplate 4 on bearing 3；Blast pipe 5 is located at sieve nest
The side of beam 1；Heat-proof device 6 is between sieve nest beam 1 and sieve plate 2, for reducing the heat radiation temperature of 1 tubular structure lower part of sieve nest beam
Degree；Discharge pipe 7 is located at the side of bearing 3 and bearing backplate 4.
Sieve nest beam 1 and bearing 3 are tubular structure, are made of ordinary carbon steel seamless steel pipe, using ventilating and cooling mode.
Sieve nest beam 1 is equidistantly arranged side by side on bearing 3, quantity >=4.
Sieve plate 2 and bearing backplate 4 are made of heat resistant and wear resistant material.
Heat-proof device 6 is that thickness 6~8mm stainless steel plates are bent, and is welded on sieve nest beam 1 for heat-insulated.
Sieve nest beam 1, sieve plate 2, bearing 3, bearing backplate 4 and heat-proof device 6 are respectively positioned in rotary kiln head-shield.
Blast pipe 5 and discharge pipe 7 are located at outside kiln head cover.
Pelletizing material is fallen on from kiln hood on sieve plate 2, and qualified material is fallen among sieve nest beam 1 in ring cold machine feed hopper, is returned
The bulk formed in rotary kiln and the resistance to material to fall off are stopped and are distributed on sieve nest beam 1, periodically by manually removing.
The utility model has the advantage of：The whole full tubular structure for using ordinary carbon steel reduces construction joint and exists, right
Sieve nest beam and bearing are aerated cooling, and heat-proof device reduces the thermal radiation temperature of gravity flow screen sieve nest beam and bearing, reduces sieve nest
The oxidation rate of beam and bearing, enables the service life to extend, and effectively reduces manufacturing cost.Can also it reach in the area of water resources shortage
Ideal cooling effect provides reliable equipment guarantee for the high-performance and high operating rate of oxide pelletizing process.
Description of the drawings
Fig. 1 is with the full manage-style cold type gravity flow screen overall diagram of heat-proof device.Wherein, sieve nest beam 1, sieve plate 2, bearing 3, bearing
Backplate 4, blast pipe 5, heat-proof device 6, discharge pipe 7.
Fig. 2 is with the full manage-style cold type gravity flow screen sectional view of heat-proof device.Wherein, sieve nest beam 1, sieve plate 2, heat-proof device 6.
Specific implementation mode
A kind of full manage-style cold type gravity flow screen with heat-proof device, including sieve nest beam 1, sieve plate 2, bearing 3, bearing backplate 4,
Blast pipe 5, heat-proof device 6 and discharge pipe 7.There are sieve plate 2, sieve plate 2 to avoid high temperature mainly for the protection of sieve nest beam 1 on sieve nest beam 1
The erosion of flue gas and material；Sieve nest beam 1 and sieve plate 2 are on bearing 3；There is bearing backplate 4 on bearing 3；Blast pipe 5 is located at sieve nest
The side of beam 1；Heat-proof device 6 is between sieve nest beam 1 and sieve plate 2, for reducing the heat radiation temperature of 1 tubular structure lower part of sieve nest beam
Degree；Discharge pipe 7 is located at the side of bearing 3 and bearing backplate 4；
Sieve nest beam 1 and bearing 3 are tubular structure, are made of ordinary carbon steel seamless steel pipe, using ventilating and cooling mode；
Sieve nest beam 1 is equidistantly arranged side by side on bearing 3, spacing 540mm, quantity 5；
Sieve plate 2 and bearing backplate 4 are made of heat resistant and wear resistant material；
Heat-proof device 6 is that thickness 8mm stainless steel plates are bent, and is welded on sieve nest beam 1 for heat-insulated；
Sieve nest beam 1, sieve plate 2, bearing 3, bearing backplate 4 and heat-proof device 6 are respectively positioned in rotary kiln head-shield；
Blast pipe 5 and discharge pipe 7 are located at outside kiln head cover.
Claims (5)
1. a kind of full manage-style cold type gravity flow screen with heat-proof device, which is characterized in that including sieve nest beam (1), sieve plate (2), branch
Seat (3), bearing backplate (4), blast pipe (5), heat-proof device (6) and discharge pipe (7)；There is sieve plate (2) on sieve nest beam (1)；Sieve nest
Beam (1) and sieve plate (2) are on bearing (3)；There is bearing backplate (4) on bearing (3)；Blast pipe (5) is located at the one of sieve nest beam (1)
Side；Heat-proof device (6) is between sieve nest beam (1) and sieve plate (2)；Discharge pipe (7) is located at the one of bearing (3) and bearing backplate (4)
Side.
2. a kind of full manage-style cold type gravity flow screen with heat-proof device according to claim 1, which is characterized in that described
Sieve nest beam (1) and bearing (3) are tubular structure.
3. a kind of full manage-style cold type gravity flow screen with heat-proof device according to claim 1, which is characterized in that described
Sieve nest beam (1) is equidistantly arranged side by side on bearing (3), quantity >=4.
4. a kind of full manage-style cold type gravity flow screen with heat-proof device according to claim 1, which is characterized in that described
Heat-proof device (6) is that thickness 6~8mm stainless steel plates are bent.
5. a kind of full manage-style cold type gravity flow screen with heat-proof device according to claim 1, which is characterized in that described
Sieve nest beam (1), sieve plate (2), bearing (3), bearing backplate (4) and heat-proof device (6) are respectively positioned in rotary kiln head-shield, blast pipe
(5) and discharge pipe (7) is located at outside kiln head cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735319.4U CN207815956U (en) | 2017-12-13 | 2017-12-13 | A kind of full manage-style cold type gravity flow screen with heat-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735319.4U CN207815956U (en) | 2017-12-13 | 2017-12-13 | A kind of full manage-style cold type gravity flow screen with heat-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207815956U true CN207815956U (en) | 2018-09-04 |
Family
ID=63332066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721735319.4U Active CN207815956U (en) | 2017-12-13 | 2017-12-13 | A kind of full manage-style cold type gravity flow screen with heat-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207815956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106414A (en) * | 2017-12-13 | 2018-06-01 | 北京首钢国际工程技术有限公司 | A kind of full manage-style cold type gravity flow screen with heat-proof device |
-
2017
- 2017-12-13 CN CN201721735319.4U patent/CN207815956U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106414A (en) * | 2017-12-13 | 2018-06-01 | 北京首钢国际工程技术有限公司 | A kind of full manage-style cold type gravity flow screen with heat-proof device |
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