CN203329807U - Full-sealed deslagging system of coal mill - Google Patents
Full-sealed deslagging system of coal mill Download PDFInfo
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- CN203329807U CN203329807U CN2013203720005U CN201320372000U CN203329807U CN 203329807 U CN203329807 U CN 203329807U CN 2013203720005 U CN2013203720005 U CN 2013203720005U CN 201320372000 U CN201320372000 U CN 201320372000U CN 203329807 U CN203329807 U CN 203329807U
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Abstract
The utility model relates to a full-sealed deslagging system of a coal mill. The system comprises a first pipeline, a ceramic valve, fluorine rubber seal rings, a sealed slag box and a manual hydraulic trolley, wherein the first pipeline is arranged at a slag hole of the coal mill and is communicated with the slag hole of the coal mill; the ceramic valve is formed by a ceramic sealing pair and a spring jack-up structure and is arranged below the first pipeline; the fluorine rubber seal rings are directly embedded in a lower flange of the ceramic valve; when jacked up, the slag box directly comes into contact with the ceramic valve to form a sealed environment; the manual hydraulic trolley is arranged below the sealed slag box and has the functions of jacking up and descending. The full-sealed deslagging system can radically avoid inner and outer leakage caused by untight sealing of the valve of the deslagging system and avoid dust raising in a deslagging process.
Description
Technical field
The utility model relates to the all-sealed dreg removing system of a kind of coal pulverizer, particularly, relates to a kind of all-sealed dreg removing system of coal pulverizer be mainly used in the thermal power generation field.
background technology
At present, in most of thermal power plants, coal is main fuel, and from the Nature, exploitation raw coal out need to could be used as the fuel of generating use through processing, and with coal pulverizer, processing is one of them step.Yet, in the Mill Systems of the existing operation of China, the stone coal discharge advanced after processing is the largest source that causes dust pollution in workshop all the time, severe jamming the security civilization production in power plant.
In the Mill Systems of existing operation, most box dreg removing systems on the spot of buffering that adopt, at the slag notch of coal pulverizer, residual cake valve sequentially is set, the buffering dreg-storing box, the lower dreg discharging valve, the opened type slag discharging vehicle, its deslagging mode is discharge on the spot, manually clear, because pebble coal is in the end slagged tap, in transfer process, airborne dust is serious, cause condition of work very severe in factory building, have a strong impact on power plant environmental sanitation and security civilization production, in addition, the long-term operation of coal pulverizer and residual cake valve are frequently opened, cause common residual cake valve heavy wear, interior leakage and the phenomenon that leaks outside are general, the a large amount of dust that leak out, the severe contamination surrounding environment, reduced the security of equipment.The defect of the box dreg removing system on the spot of buffering of the prior art is embodied in:
1, because coal pulverizer moves for a long time, need opening and closing residual cake valve continually in tapping process, common slag-discharging valve is easy to interior leakage and leaks outside.While leaking outside, cause dust directly to leak into outside valve; And during interior leakage, even also can't stop stone to continue discharge in coal during valve-off, if slag discharging vehicle connects material, will cause not in time the part pebble coal directly to be discharged on ground, not only affecting follow-up work but also reveal because of valve the dust kick up also can serious environment pollution;
The pebble coal of 2, discharging from buffering dreg-storing box slag notch is mixed with dust and foreign matter, directly is disposed on uncovered slag discharging vehicle, 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, in existing Mill Systems, the buffering dreg-storing box connects with the mode that upper and lower residual cake valve majority is connected with flange, takes to place sealing gasket at flange connections and forms sealed environment.Because temperature in dreg-storing box is high, easily cause the damage of sealing gasket and aging, cause poorly sealedly, cause dust to leak, affect environment.
4, the slag discharging vehicle used at present is all opened type, because needs are transported to pebble coal outside factory building, outside factory building, focuses on, and uncovered slag waggon fills with the high temperature pebble 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.
Due to the existence of above-mentioned phenomenon, the equipment in factory building for a long time under rugged environment, and is easy to damage, and causes maintenance and replacement cost to increase, and the more important thing is, such working environment seriously jeopardizes the interior staff's of factory building health of human body.Thus, need to 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 pebble coal discharges on the spot, thereby guarantee the security civilization production of power plant.
The utility model content
The purpose of this utility model is to provide a kind of and can fundamentally stops 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 pebble coal all-sealed dreg removing system of coal pulverizer that discharging modes are hermetically sealed packaged type discharge on the spot.
The technical solution of the utility model is as follows:
The all-sealed dreg removing system of a kind of coal pulverizer, described system comprises the first pipeline, ceramic valve, fluorine glue sealing ring, sealing slag case, it is characterized in that:
The slag notch place of described coal pulverizer arranges the first pipeline, and the first pipeline is communicated with the coal pulverizer slag notch; Described ceramic valve is comprised of ceramic seal pair and spring jack-up formula structure, is arranged on the first pipeline below; Described fluorine glue sealing ring directly embeds on the lower flange of ceramic valve, and when jack-up slag case, the slag case directly contacts with ceramic valve and forms sealed environment;
Described system also comprises a hand-hydraulic small handcart, is arranged on below sealing slag case, and described hand-hydraulic small handcart has jack-up and decline effect.
Further, be provided with slag case hermatic door and slag case observation window on described sealing slag case.
Further, in the middle of described the first pipeline, the top of ceramic valve arranges standby residual cake valve together.
The beneficial effects of the utility model are 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, the materials such as carbide alloy are as the valve of sealing pair, wear-resistant degree improves greatly, has avoided the interior leakage caused because of the valve seal surface wear.Simultaneously this ceramic valve adopts the form of spring jack-up pottery flashboard as sealing, can make the tighter of valve seal by the elasticity of regulating spring, accomplishes to have avoided leaking outside of valve without leaking.Owing to having solved interior leakage and having leaked outside, so operating personnel can work under safety and clean environment more, and have reduced the risk of maintenance and the replacing of equipment, the useful life that has extended equipment.This cover coal pulverizer all-sealed dreg removing system has changed original mode of discharging on the spot pebble coal into hermetically sealed portable discharging modes, and the working environment that makes the staff is 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 factory building, and improvement expenses is low, and work progress is safe, simple.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.Wherein: 1-coal pulverizer slag notch, 2-the first pipeline, 3-ceramic valve, 4-fluorine glue sealing ring, 5-sealing slag case, 5-1 slag case observation window, 5-2 slag case hermatic door, 6 hand-hydraulic small handcarts.
The specific embodiment
For realizing above-mentioned purpose of the present utility model, the all-sealed dreg removing system of coal pulverizer is used following methods and principle.Slag notch place at coal pulverizer arranges the first pipeline, and the 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 the first pipeline, the advantage of this valve is to adopt the engineering wear-resistant ceramic as sealing pair, greatly strengthened the wear-resistant degree of valve, 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 valve seal sternly not cause leaks outside.Below the ceramic wear-resisting valve, described fluorine glue sealing ring directly embeds on the lower flange of ceramic valve, and a slag case is set below fluorine glue sealing ring, and 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, make the hydraulic pressure small handcart increase or descend, thereby the slag case driven on it rises or descends.The blanking environment that the rising of slag case is rear and the formation of fluorine glue sealing pair close contact seals.A peephole and a cleanout door are set to facilitate the height of observing material level and to draw slag on the slag case.
When coal pulverizer normally moves, by rising the 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 while 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 the 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 by existing pebble coal on the spot discharging modes changed the all-sealed blanking of safer health, the mode of packaged type discharge into.
Claims (3)
1. the all-sealed dreg removing system of coal pulverizer, described system comprises the first pipeline, ceramic valve, fluorine glue sealing ring, sealing slag case, it is characterized in that:
The slag notch place of described coal pulverizer arranges the first pipeline, and the first pipeline is communicated with the coal pulverizer slag notch; Described ceramic valve is comprised of ceramic seal pair and spring jack-up formula structure, is arranged on the first pipeline below; Described fluorine glue sealing ring directly embeds on the lower flange of ceramic valve, and when jack-up slag case, the slag case directly contacts with ceramic valve and forms sealed environment;
Described system also comprises a hand-hydraulic small handcart, is arranged on below sealing slag case, and described hand-hydraulic small handcart has jack-up and decline effect.
2. system according to claim 1, is characterized in that: be provided with slag case hermatic door and slag case observation window on described sealing slag case.
3. system according to claim 1 is characterized in that: in the middle of described the first pipeline, the top of ceramic valve arranges standby residual cake valve together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203720005U CN203329807U (en) | 2013-06-26 | 2013-06-26 | Full-sealed deslagging system of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203720005U CN203329807U (en) | 2013-06-26 | 2013-06-26 | Full-sealed deslagging system of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203329807U true CN203329807U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203720005U Expired - Lifetime CN203329807U (en) | 2013-06-26 | 2013-06-26 | Full-sealed deslagging system of coal mill |
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| Country | Link |
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| CN (1) | CN203329807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301922A (en) * | 2013-06-26 | 2013-09-18 | 赵云辉 | Full-sealed type slag discharging system of coal mill |
-
2013
- 2013-06-26 CN CN2013203720005U patent/CN203329807U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301922A (en) * | 2013-06-26 | 2013-09-18 | 赵云辉 | Full-sealed type slag discharging system of coal mill |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
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| CX01 | Expiry of patent term |