CN202284897U - Sealing device of high-temperature rotary kiln - Google Patents
Sealing device of high-temperature rotary kiln Download PDFInfo
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- CN202284897U CN202284897U CN2011203393733U CN201120339373U CN202284897U CN 202284897 U CN202284897 U CN 202284897U CN 2011203393733 U CN2011203393733 U CN 2011203393733U CN 201120339373 U CN201120339373 U CN 201120339373U CN 202284897 U CN202284897 U CN 202284897U
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Abstract
The utility model relates to a sealing device of a high-temperature rotary kiln. A cap iron of a rotary kiln head is fixed to the rotary kiln head end of a rotary kiln cylindrical shell, and an air-cooled sleeve shoe plate is welded to the rotary kiln cylindrical shell. The air-cooled sleeve is welded to the air-cooled sleeve shoe plate, and a heatproof plate is fixed to a kiln head cover guard plate. The heatproof sealing ring is welded to the kiln head cylindrical shell, and a gasket support cone-shaped body is welded to the heatproof plate. The gasket is fixed to the gasket support cone-shaped body by means of bolts. A gasket fastener is anchored to the gasket support cone-shaped body. A fastening pulley is formed by a rack being disposed on a support beam of the kiln head cover guard plate. The sealing device of a high-temperature rotary kiln is advantageous in that defects of a conventional sealing device that deformation, air and ash leakage and heat radiation are easy can be overcome; through changing geometric shapes of outer castable of the kiln head cap iron and combustion chamber kiln head bricks, and increasing heat-resistant sealing rings and heatproof plates, the resistance to high-temperature wind and gas in the kiln can be increased; the sealing device can maintain good mechanical seal performance under the temperature of 1300-1450 DEG, and sealing effect and service lifetime can be ensured.
Description
Technical field:
The utility model relates to a kind of non-ferrous metal metallurgy equipment, especially utilizes high temperature rotary kiln to handle the seal of rotary kiln device that nickel-bearing laterite is directly gone back the original production ferronickel.
Background technology:
At present, can supply the nickel resources of human development utilization to be only limited to 2 kinds of nickel sulfide ore and the nickel ores on land, wherein about 30% is sulphide ore, and 70% is lateritic nickel ore.According to US Geological Survey's report, by 2004, explored world nickel gross reserves was 6,200 ten thousand t, and the reserves basis is 14,000 ten thousand t.World land finds out that the stock number of nickeliferous grade about 1% is 1.3 hundred million t, and wherein 60% belongs to the laterite-type nickel ore bed.
Because nickel sulfide ore resource quality better, technology is ripe, and about 60% nickel output derives from nickel sulfide ore now, but nickel sulfide ore is because of long-term exploitation, and on new resources are explored, does not have important breakthrough over nearly 20 years, and reserves sharply descends.As calculating, adopted Jinchuan nickel minerals (world's the 3rd big nickel sulfide ore) in 5 years to produce nickel amount 1,200,000 t per year.Therefore, crisis of resource has appearred in global nickel sulfide ore, and the mining depth in traditional several nickel sulfide ores mine deepens day by day, and the mining difficulty strengthens, and choosing, smelting difficulty also increase.For this reason, global nickel industry is with the abundant lateritic nickel ore of center of gravity aiming reserves of development of resources.The smelting proportion of utilization of adopting of lateritic nickel ore resource has accounted for more than 40% of world's nickel output, and is the trend of continuous rising.Can expect that the increase of the following nickel output in the world will be mainly derived from the exploitation of laterite-type nickel ore resource.Each non-ferrous metal enterprise of China actively develops the lateritic nickel ore resource in the world.
Smelting technologies such as smelting, low, the original smelting blast furnace of the rate of recovery, ore-smelting electric furnace are seriously polluted, cost is high but, difficulty lower owing to the most grades of laterite-type nickel ore selected.Particularly advanced is to utilize high temperature rotary kiln to handle nickel-bearing laterite directly to go back original production ferronickel technology, because general seal of rotary kiln device is generally using below 1200 ℃, more than 1300 ℃; Sealing device is yielding; Be prone to leak out, defectives such as ash, easy heat radiation are leaked in gas leakage.If leak out in hot junction (kiln hood), will reduce the kiln secondary air temperature, cause heat loss; If cold junction (kiln tail) leaks out, not only fuel can not fully burn, and can influence kiln ventilation; Hear rate is increased, influence product, the quality of grog, contain a large amount of dust-like materials in the cold junction waste gas simultaneously; Because down draught and excessive had both polluted environment, again the post workers'health was damaged.Restrict promoting the use of of this technology, seriously restricted the development and utilization of laterite resource.。
Summary of the invention:
The purpose of the utility model is exactly the deficiency to above-mentioned prior art, provides a kind of high temperature rotary kiln that utilizes to handle the high temperature rotary kiln sealing device that nickel-bearing laterite is directly gone back original production ferronickel technology.
The purpose of the utility model realizes through following technical scheme:
The high temperature rotary kiln sealing device is to be fixed on cylinder of rotary kiln 2 kiln hood ends by kiln hood break iron (12), and air-cooled cover gripper shoe 3 one ends are welded on the cylinder of rotary kiln 2, and the other end is welded on the air-cooled cover 4; Air-cooled cover 4 one ends are welded on the air-cooled cover gripper shoe 3; The other end is welded on the kiln hood break iron 12, and refractory plate 8 is fixed on the kiln hood cover backplate 11, and temperature resistant encapsulation ring 9 is welded on the kiln hood cylindrical shell 2; Diaphragm seal supports centrum 7 and is welded on the refractory plate 8; Diaphragm seal 6 is fixed by bolts to diaphragm seal and supports on the centrum 7, and diaphragm seal fastener 5 is anchored at diaphragm seal and supports on the centrum 7, and the fastening pulley 14 of bilateral is contained on kiln hood cover backplate 11 brace summers through support separately; Binding in wire 16 is stuck on the diaphragm seal fastener 5 around diaphragm seal, and two ends are passed fastening pulley 14 respectively and connected and composed with fastening weight 15.
Inside and outside kiln hood break iron 12, build high temperature pours 13, built kiln hood brick 10 in the kiln hood cover by laying bricks or stones; Kiln hood brick 10 is built by laying bricks or stones with several fonts labyrinth form; High temperature pours 13 is a steel fibre corundum material.
Beneficial effect: it is yielding that the utility model has overcome the existing sealing device of legacy equipment, is prone to leak out, and defectives such as ash, easy heat radiation are leaked in gas leakage.Through changing outer pours of kiln hood break iron and combustion chamber kiln hood brick geometry; Increase resistant to elevated temperatures sealing ring, refractory plate, increase resistance to high temperature in the kiln and wind, gas; Make sealing device in the time of 1300～1450 ℃, still can keep the favorable mechanical sealing property, thereby guarantee sealing effectiveness and service life.
Description of drawings:
Accompanying drawing 1 high temperature rotary kiln sealing device structure figure
Accompanying drawing 2 high temperature rotary kiln kiln hood structure charts
1 high temperature rotary kiln kiln hood, 2 cylinder of rotary kiln; 3 air-cooled covers support; 4 air-cooled covers; 5 diaphragm seal fasteners; 6 diaphragm seals, 7 diaphragm seals support centrum, 8 refractory plates, 9 temperature resistant encapsulation rings, 10 kiln hood bricks, 11 kiln hood cover backplates, 12 kiln hood break iron, 13 high temperature pours, 14 fastening pulleys, 15 fastening weights, 16 binding in wire.
The specific embodiment:
Do further detailed description below in conjunction with accompanying drawing and embodiment:
The high temperature rotary kiln sealing device is to be fixed on cylinder of rotary kiln 2 kiln hood ends by kiln hood break iron (12), and air-cooled cover gripper shoe 3 one ends are welded on the cylinder of rotary kiln 2, and the other end is welded on the air-cooled cover 4; Air-cooled cover 4 one ends are welded on the air-cooled cover gripper shoe 3; The other end is welded on the kiln hood break iron 12, and refractory plate 8 is fixed on the kiln hood cover backplate 11, and temperature resistant encapsulation ring 9 is welded on the kiln hood cylindrical shell 2; Diaphragm seal supports centrum 7 usefulness and is welded on the refractory plate 8; Diaphragm seal 6 is fixed by bolts to diaphragm seal and supports on the centrum 7, and diaphragm seal fastener 5 is anchored at diaphragm seal and supports on the centrum 7, and the fastening pulley 14 of bilateral is contained on kiln hood cover backplate 11 brace summers through support separately; Binding in wire 16 is stuck on the diaphragm seal fastener 5 around diaphragm seal, and two ends are passed fastening pulley 14 respectively and connected and composed with fastening weight 15.
Inside and outside kiln hood break iron 12, build high temperature pours 13, built kiln hood brick 10 in the kiln hood cover by laying bricks or stones; Kiln hood brick 10 is built by laying bricks or stones with several fonts labyrinth form; High temperature pours 13 is a steel fibre corundum material.
The high temperature rotary kiln sealing device is to be fixed on cylinder of rotary kiln 2 kiln hood ends by high-temperature refractory steel kiln hood break iron 12; Air-cooled cover gripper shoe 3 is welded on cylinder of rotary kiln 2 and the kiln hood break iron 12; The air-cooled cover 4 of heat resisting steel is welded on air-cooled cover gripper shoe 3 and the kiln hood break iron 12, reduces the temperature of kiln hood break iron 12 and air-cooled cover 4 through air blast; Refractory plate 8 is fixed on the kiln hood cover backplate 11; Temperature resistant encapsulation ring 9 (H=80mm) is welded on the kiln hood cylindrical shell, reduces the temperature at refractory plate 8 and diaphragm seal 6 places as hot-air damper, and stops dust, slag charge to get between diaphragm seal, guarantees sealing effectiveness; Diaphragm seal supports centrum 7 and is fixed by bolts on the refractory plate 8, when kiln temperature is 1300 ℃, between refractory plate 8 and the air-cooled cover gap according to thermal coefficient of expansion be controlled at 1 ‰ with reduction leak out, diathermanous; Diaphragm seal 6 is fixed by bolts to diaphragm seal and supports on the centrum 7; Diaphragm seal fastener 5 is anchored on the diaphragm seal 6; Binding in wire 16 is stuck on the diaphragm seal fastener 5, through the tension effect of binding in wire 16, fastening pulley 14 and fastening weight 15, and kiln body deformability, cylindrical shell beat and eccentric rotary that diaphragm seal 6 is produced under the high temperature user mode with rotary kiln.Its end is fixed on the backplate of kiln hood cover or kiln tail, and the other end is seamlessly protected on the air-cooled cover 4 that overlays on special setting, realizes gap-free sealedly, has guaranteed not leak out, do not leaked ash.Kiln hood brick 10 and high temperature pours 13 build by laying bricks or stones respectively in the kiln hood cover with kiln hood break iron 12 inside and outside, with cooling, thermal insulation protection kiln hood break iron 12 and sealing device.
The high temperature rotary kiln sealing device is to be fixed on cylinder of rotary kiln 2 kiln hood ends by high-temperature refractory steel kiln hood break iron 12; Air-cooled cover gripper shoe 3 is welded on cylinder of rotary kiln 2 and the kiln hood break iron 12; The air-cooled cover 4 of heat resisting steel is welded on air-cooled cover gripper shoe 3 and the kiln hood break iron 12, to reduce the temperature of kiln hood break iron 12 and air-cooled cover 4 through air blast; Refractory plate 8 is fixed on the kiln hood cover backplate 11; Temperature resistant encapsulation ring 9 (H=200mm) is welded on the kiln hood cylindrical shell, reduces the temperature at refractory plate 8 and diaphragm seal 6 places as hot-air damper; , and stop dust, slag charge to get between diaphragm seal, guarantee sealing effectiveness; Diaphragm seal supports centrum 7 and is fixed by bolts on the refractory plate 8, when kiln temperature is 1450 ℃, between refractory plate 8 and the air-cooled cover gap according to thermal coefficient of expansion be controlled at 3 ‰ with reduction leak out, diathermanous; Diaphragm seal 6 is fixed by bolts to diaphragm seal and supports on the centrum 7; Diaphragm seal fastener 5 is anchored on the diaphragm seal 6; Binding in wire 16 is stuck on the diaphragm seal fastener 5, through the tension effect of binding in wire 16, fastening pulley 14 and fastening weight 15, and kiln body deformability, cylindrical shell beat and eccentric rotary that diaphragm seal 6 is produced under the high temperature user mode with rotary kiln.Its end is fixed on the backplate of kiln hood cover or kiln tail, and the other end is seamlessly protected on the air-cooled cover 4 that overlays on special setting, realizes gap-free sealedly, has guaranteed not leak out, do not leaked ash.Kiln hood brick 10 and high temperature pours 13 build by laying bricks or stones respectively in the kiln hood cover with kiln hood break iron 12 inside and outside, with cooling, thermal insulation protection kiln hood break iron 12 and sealing device.
Claims (4)
1. a high temperature rotary kiln sealing device is characterized in that, is to be fixed on cylinder of rotary kiln (2) kiln hood end by kiln hood break iron (12); Air-cooled cover gripper shoe (3) one ends are welded on the cylinder of rotary kiln (2); The other end is welded on the air-cooled cover (4), and air-cooled cover (4) one ends are welded on the air-cooled cover gripper shoe (3), and the other end is welded on the kiln hood break iron (12); Refractory plate (8) is fixed on the kiln hood cover backplate (11); Temperature resistant encapsulation ring (9) is welded on the kiln hood cylindrical shell (2), and diaphragm seal supports centrum (7) and is welded on the refractory plate (8), and diaphragm seal (6) is fixed by bolts to diaphragm seal and supports on the centrum (7); Diaphragm seal fastener (5) is anchored on diaphragm seal and supports on the centrum (7); The fastening pulley of bilateral (14) is contained on kiln hood cover backplate (11) brace summer through support separately, and binding in wire (16) is stuck on the diaphragm seal fastener (5) around diaphragm seal (6), and two ends are passed fastening pulley (14) respectively and connected and composed with fastening weight (15).
2. according to the described high temperature rotary kiln sealing device of claim 1, it is characterized in that, inside and outside kiln hood break iron (12), built high temperature pours (13), built kiln hood brick (10) in the kiln hood cover by laying bricks or stones.
3. according to the described high temperature rotary kiln sealing device of claim 2, it is characterized in that kiln hood brick (10) is built by laying bricks or stones with several fonts labyrinth form.
4. according to the described high temperature rotary kiln sealing device of claim 2, it is characterized in that high temperature pours (13) is a steel fibre corundum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203393733U CN202284897U (en) | 2011-09-10 | 2011-09-10 | Sealing device of high-temperature rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203393733U CN202284897U (en) | 2011-09-10 | 2011-09-10 | Sealing device of high-temperature rotary kiln |
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| CN202284897U true CN202284897U (en) | 2012-06-27 |
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| CN2011203393733U Expired - Lifetime CN202284897U (en) | 2011-09-10 | 2011-09-10 | Sealing device of high-temperature rotary kiln |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809282A (en) * | 2012-08-16 | 2012-12-05 | 芜湖新兴铸管有限责任公司 | Refractory lining building structure for front end and back end of rotary kiln for pellet production |
| CN102967141A (en) * | 2012-12-05 | 2013-03-13 | 河南省海皇益民旋窑水泥有限公司 | Kiln tail sealing device |
| CN104089473A (en) * | 2014-07-02 | 2014-10-08 | 威顿水泥集团有限责任公司 | Rotary kiln capable of preventing blown sand from damaging kiln head equipment |
| CN108507347A (en) * | 2018-05-30 | 2018-09-07 | 福建省固体废物处置有限公司 | A kind of rotary kiln tail structure and its manufacturing method |
| CN113372023A (en) * | 2021-07-01 | 2021-09-10 | 邯郸钢铁集团有限责任公司 | Sealing protection device for crack of kiln shell of Maerz active lime kiln |
-
2011
- 2011-09-10 CN CN2011203393733U patent/CN202284897U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809282A (en) * | 2012-08-16 | 2012-12-05 | 芜湖新兴铸管有限责任公司 | Refractory lining building structure for front end and back end of rotary kiln for pellet production |
| CN102967141A (en) * | 2012-12-05 | 2013-03-13 | 河南省海皇益民旋窑水泥有限公司 | Kiln tail sealing device |
| CN104089473A (en) * | 2014-07-02 | 2014-10-08 | 威顿水泥集团有限责任公司 | Rotary kiln capable of preventing blown sand from damaging kiln head equipment |
| CN108507347A (en) * | 2018-05-30 | 2018-09-07 | 福建省固体废物处置有限公司 | A kind of rotary kiln tail structure and its manufacturing method |
| CN108507347B (en) * | 2018-05-30 | 2024-02-23 | 福建省固体废物处置有限公司 | Tail structure of rotary kiln and manufacturing method thereof |
| CN113372023A (en) * | 2021-07-01 | 2021-09-10 | 邯郸钢铁集团有限责任公司 | Sealing protection device for crack of kiln shell of Maerz active lime kiln |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20180524 Granted publication date: 20120627 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20190125 Granted publication date: 20120627 |
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| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120627 |
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| CX01 | Expiry of patent term |