CN103285988A - Fully-sealed slag discharging system of coal mill - Google Patents
Fully-sealed slag discharging system of coal mill Download PDFInfo
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- CN103285988A CN103285988A CN2013102600299A CN201310260029A CN103285988A CN 103285988 A CN103285988 A CN 103285988A CN 2013102600299 A CN2013102600299 A CN 2013102600299A CN 201310260029 A CN201310260029 A CN 201310260029A CN 103285988 A CN103285988 A CN 103285988A
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Abstract
The invention relates to a fully-sealed slag discharging system of a coal mill. The fully-sealed slag discharging system of the coal mill comprises a first pipeline, a ceramic valve, a second pipeline, fluoro rubber sealing rings, a sealing slag box and a manual hydraulic trolley, wherein the first pipeline is arranged at a slag outlet of the coal mill and is communicated with the slag outlet of the coal mill; the ceramic valve consists of a ceramic sealing pair and a spring ascending type structure, and is arranged below the first pipeline; the second pipeline is arranged below the abrasion-resistant ceramic valve; two fluoro rubber sealing rings are additionally arranged on a lower flange of the second pipeline; the sealing slag box is arranged under the second pipeline; the manual hydraulic trolley is arranged under the sealing slag box and has ascending and descending functions. According to the fully-sealed slag discharging system of the coal mill, the internal leakage and the external leakage caused by poor sealing of a valve of a slag discharging system can be fundamentally avoided, and dust can not be raised in the slag discharging process.
Description
Technical field
The present invention relates to the all-sealed dreg removing system of a kind of coal pulverizer, particularly, relate to a kind of all-sealed dreg removing system of coal pulverizer that is mainly used in the thermal power generation field.
Background technology
At present, in most of thermal power plants, coal is main fuel, and the raw coal that exploitation is come out from the Nature need could use as the fuel of generating usefulness through handling, and handling with coal pulverizer is one of them step.Yet in the coal pulverizer system of the existing operation of China, the stone coal discharging of advancing after handling is the largest source that causes dust pollution in the workshop all the time, has seriously disturbed the security civilization production in power plant.
In the coal pulverizer system of existing operation, most box dreg removing systems on the spot of buffering that adopt, namely at the slag notch of coal pulverizer residual cake valve is set in proper order, the buffering dreg-storing box, the lower dreg discharging valve, opened type deslagging car, its deslagging mode is discharging on the spot, manually clear, because the stone coal is in the end slagged tap, airborne dust is serious in the transfer process, cause condition of work very severe in the factory building, have a strong impact on power plant environmental sanitation and security civilization production, in addition, coal pulverizer long-time running and residual cake valve are frequently opened, cause common residual cake valve heavy wear, interior leakage and the phenomenon that leaks outside are general, a large amount of dust that leak out, the severe contamination surrounding environment has reduced the security of equipment.The defective of the box dreg removing system on the spot of buffering of the prior art is embodied in:
1, because the coal pulverizer long-time running needs opening and closing residual cake valve continually in tapping process, common slag-discharging valve is easy to interior leakage and leaks outside.Cause dust directly to leak into outside the valve when leaking outside; And during interior leakage, even also can't stop stone to continue discharging in coal during valve-off, the untimely part stone coal that will cause directly is discharged on the ground if the deslagging car connects material, and not only influencing follow-up work but also reveal the dust kick up because of valve also can serious environment pollution;
2, the stone coal of discharging from buffering dreg-storing box slag notch is mixed with dust and foreign matter, directly is disposed on the uncovered deslagging car, causes the tapping process airborne dust, and on the spot during deslagging emission also can carry a large amount of high-temperature dusts, cause environmental pollution and potential safety hazard.
3, the buffering dreg-storing box is connected with the flange ways of connecting with residual cake valve majority up and down in the existing coal pulverizer system, takes in flange connections placement sealing gasket formation sealed environment.Because temperature height in the dreg-storing box, cause the damage of sealing gasket and aging easily, cause poorly sealedly, cause dust to leak, influence environment.
4, the deslagging car that uses at present all is opened type, owing to the stone coal need be transported to outside the factory building, focuses on outside factory building, and uncovered slag waggon fills with the high temperature stone coal that contains a large amount of dust walks in factory building, has a strong impact on the safety and sanitation production of factory building.
Because the equipment in the existence of above-mentioned phenomenon, factory building is under the rugged environment for a long time, and be easy to damage, cause maintenance and replacement cost to increase, the more important thing is that such working environment seriously jeopardizes the health of human body of staff in the factory building.Thus, need provide a kind of dreg removing system that can fundamentally solve frequently to change valve, solve dreg removing system and leak powder, airborne dust, solve the all-sealed dreg removing system of brand-new coal pulverizer that the stone coal discharges on the spot, thereby guarantee the security civilization production of power plant.
Summary of the invention
The object of the present invention is to provide and a kind ofly can fundamentally stop the interior leakage that the dreg removing system valve seal sternly do not cause and leak outside, stop the tapping process airborne dust, change the stone coal on the spot discharging modes be the all-sealed dreg removing system of coal pulverizer of hermetically sealed packaged type discharging.
Technical scheme of the present invention is as follows:
The all-sealed dreg removing system of a kind of coal pulverizer, described system comprises first pipeline, ceramic valve, second pipeline, fluorine glue sealing ring, sealing slag case, it is characterized in that: the slag notch place of described coal pulverizer arranges first pipeline, and first pipeline is communicated with the coal pulverizer slag notch; Described ceramic valve is made up of ceramic seal pair and spring jack-up formula structure, is arranged on first pipeline below; Second pipeline is set, at the lower flange interpolation twice fluorine glue sealing ring of second pipeline below the ceramic wear-resisting valve; A sealing slag case is set below second pipeline; Described system also comprises a hand-hydraulic small handcart, is arranged on below the sealing slag case, and described hand-hydraulic small handcart has jack-up and decline effect are arranged.
Further, described sealing slag case is provided with slag case hermatic door and slag case observation window.
Further, in the middle of described first pipeline, the top of ceramic valve arranges standby residual cake valve together.
Beneficial effect of the present invention is as follows:
The all-sealed dreg removing system of this cover coal pulverizer, used a kind of special ceramic wear-resisting valve, this valve adopts the engineering wear-resistant ceramic as sealing pair, compare and use common metal, materials such as carbide alloy are as the valve of sealing pair, wear-resistant degree improves greatly, has avoided the interior leakage that causes because of the valve seal surface wear.Simultaneously this ceramic valve adopts spring jack-up pottery flashboard as the form of sealing, can make the tighter of valve seal by the elasticity of regulating spring, accomplishes not have and leaks, and has avoided leaking outside of valve.Owing to solved interior leakage and leak outside, so operating personnel can work under safety more and clean environment, and have reduced the risk of maintenance and the replacing of equipment, the useful life that has prolonged equipment.This cover coal pulverizer all-sealed dreg removing system has changed original mode of discharging the stone coal on the spot into hermetically sealed portable discharging modes, makes staff's working environment safety and health more.The improvement project scale of the all-sealed dreg removing system of this cover coal pulverizer is moderate, does not change the foundation structure of coal pulverizer, does not change the apparatus arrangement in the factory building, and improvement expenses is low, and work progress is safe, simple.
Description of drawings
Fig. 1 is structural representation of the present invention.Wherein: 1-coal pulverizer slag notch, 2-first pipeline, 3-ceramic valve, 3-1 ceramic seal pair, 3-2 spring jack-up formula structure, 4-second pipeline, 5-fluorine glue sealing ring, 6-sealing slag case, 6-1 slag case hermatic door, 6-2 slag case observation window, 7-hand-hydraulic small handcart.
The specific embodiment
For realizing above-mentioned purpose of the present invention, the all-sealed dreg removing system of coal pulverizer uses following method and principle.Slag notch place at coal pulverizer arranges first pipeline, and first pipeline is communicated with the coal pulverizer slag notch.The ceramic wear-resisting valve of a spring jack-up formula sealing is set below first pipeline, the advantage of this valve is to adopt the engineering wear-resistant ceramic as sealing pair, strengthened the wear-resistant degree of valve greatly, the interior leakage of having avoided valve to cause because of the switch wearing and tearing, simultaneously this valve adopts spring jack-up pottery flashboard to do the form of sealing, elasticity by regulating spring can make the tightr of valve seal, and that has avoided that valve seal sternly do not cause leaks outside.Second pipeline is set, at the lower flange interpolation twice fluorine glue sealing ring of second pipeline below the ceramic wear-resisting valve.A slag case is set below second pipeline, a hydraulic pressure small handcart that jack-up and decline effect are arranged is set below the slag case.By operation hydraulic pressure small handcart, the hydraulic pressure small handcart is risen or decline, thereby the slag case that drives on it rise or descend.After rising, the slag case closely contacts the blanking environment that forms sealing with the fluorine glue sealing pair of the second pipeline lower flange.A peephole and a cleanout door are set conveniently to observe the height of material level and to draw slag on the slag case.
When coal pulverizer normally moves, by rise hydraulic pressure small handcart, thereby rise the slag case, make the slag case form hermetic blanking environment by compressing fluorine glue sealing pair.Open ceramic valve, the gangue that coal pulverizer produces, dust etc. fall into the slag case along sealed pipeline environment.When the slag case falls full material when needing deslagging, close ceramic valve, the blocking-up blanking.Decline small handcart, thereby decline slag case.With small handcart or other instruments the slag case is moved on to outdoor assigned address deslagging.For preventing that fortuitous event from causing ceramic valve to damage, can be chosen in the middle of first pipeline, the top of ceramic valve arranges standby residual cake valve together, after ceramic valve damages because of accidental cause, enables standby valve, to reduce risk.Use this cover coal pulverizer all-sealed dreg removing system with existing stone coal on the spot discharging modes changed the all-sealed blanking of safer health, the mode of packaged type discharging into.
Claims (3)
1. all-sealed dreg removing system of coal pulverizer, described system comprises first pipeline, ceramic valve, second pipeline, fluorine glue sealing ring, sealing slag case, it is characterized in that: the slag notch place of described coal pulverizer arranges first pipeline, and first pipeline is communicated with the coal pulverizer slag notch; Described ceramic valve is made up of ceramic seal pair and spring jack-up formula structure, is arranged on first pipeline below; Second pipeline is set, at the lower flange interpolation twice fluorine glue sealing ring of second pipeline below the ceramic wear-resisting valve; A sealing slag case is set below second pipeline; Described system also comprises a hand-hydraulic small handcart, is arranged on below the sealing slag case, and described hand-hydraulic small handcart has jack-up and decline effect are arranged.
2. system according to claim 1, it is characterized in that: described sealing slag case is provided with slag case hermatic door and slag case observation window.
3. system according to claim 1 is characterized in that: in the middle of described first pipeline, the top of ceramic valve arranges standby residual cake valve together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102600299A CN103285988A (en) | 2013-06-26 | 2013-06-26 | Fully-sealed slag discharging system of coal mill |
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| CN2013102600299A CN103285988A (en) | 2013-06-26 | 2013-06-26 | Fully-sealed slag discharging system of coal mill |
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| CN103285988A true CN103285988A (en) | 2013-09-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797837A (en) * | 2016-05-24 | 2016-07-27 | 大峘集团有限公司 | Interlocking device applied to raw coal slag discharging of coal mill |
| CN107469945A (en) * | 2017-08-02 | 2017-12-15 | 嘉善县天成强磁有限责任公司 | The discharge system of ceramic ball mill |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313582A (en) * | 1928-06-16 | 1929-12-05 | Erie City Iron Works | Improvements in or relating to method of and apparatus for pulverizing and treating materials |
| CN201445995U (en) * | 2009-07-03 | 2010-05-05 | 江苏瑞能电力设备有限公司 | Pebble coal isobaric discharge device |
| CN201500567U (en) * | 2009-08-06 | 2010-06-09 | 北京昊蓬机电设备有限公司 | Closed slag discharging device and slag discharging system having same |
| CN201505566U (en) * | 2009-09-28 | 2010-06-16 | 常州市肯创环境工程技术有限公司 | Pebble coal discharging device for coal mill |
| CN201561136U (en) * | 2009-12-31 | 2010-08-25 | 赵云辉 | Rotary ceramic abrasion resistant feeding valve |
| CN201664625U (en) * | 2009-03-19 | 2010-12-08 | 北京恒信众和电站辅助设备有限责任公司 | Medium speed-milled pebble coal collecting and conveying device |
| CN202188146U (en) * | 2011-04-12 | 2012-04-11 | 天津市博石通业机械设备发展有限公司 | Plane revolution ceramic feeding valve |
| CN202700618U (en) * | 2012-08-21 | 2013-01-30 | 大唐三门峡发电有限责任公司 | Portable-type sealing deslagging device with intermediate speed for coal mill |
| CN203329808U (en) * | 2013-06-26 | 2013-12-11 | 赵云辉 | Full-sealed deslagging system of coal mill |
-
2013
- 2013-06-26 CN CN2013102600299A patent/CN103285988A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB313582A (en) * | 1928-06-16 | 1929-12-05 | Erie City Iron Works | Improvements in or relating to method of and apparatus for pulverizing and treating materials |
| CN201664625U (en) * | 2009-03-19 | 2010-12-08 | 北京恒信众和电站辅助设备有限责任公司 | Medium speed-milled pebble coal collecting and conveying device |
| CN201445995U (en) * | 2009-07-03 | 2010-05-05 | 江苏瑞能电力设备有限公司 | Pebble coal isobaric discharge device |
| CN201500567U (en) * | 2009-08-06 | 2010-06-09 | 北京昊蓬机电设备有限公司 | Closed slag discharging device and slag discharging system having same |
| CN201505566U (en) * | 2009-09-28 | 2010-06-16 | 常州市肯创环境工程技术有限公司 | Pebble coal discharging device for coal mill |
| CN201561136U (en) * | 2009-12-31 | 2010-08-25 | 赵云辉 | Rotary ceramic abrasion resistant feeding valve |
| CN202188146U (en) * | 2011-04-12 | 2012-04-11 | 天津市博石通业机械设备发展有限公司 | Plane revolution ceramic feeding valve |
| CN202700618U (en) * | 2012-08-21 | 2013-01-30 | 大唐三门峡发电有限责任公司 | Portable-type sealing deslagging device with intermediate speed for coal mill |
| CN203329808U (en) * | 2013-06-26 | 2013-12-11 | 赵云辉 | Full-sealed deslagging system of coal mill |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797837A (en) * | 2016-05-24 | 2016-07-27 | 大峘集团有限公司 | Interlocking device applied to raw coal slag discharging of coal mill |
| CN107469945A (en) * | 2017-08-02 | 2017-12-15 | 嘉善县天成强磁有限责任公司 | The discharge system of ceramic ball mill |
| CN107469945B (en) * | 2017-08-02 | 2022-12-30 | 嘉兴天成强磁科技股份有限公司 | Discharging system of ceramic ball mill |
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Application publication date: 20130911 |