CN203570138U - Improved deslagging double-layer door of coal mill - Google Patents
Improved deslagging double-layer door of coal mill Download PDFInfo
- Publication number
- CN203570138U CN203570138U CN201320581802.7U CN201320581802U CN203570138U CN 203570138 U CN203570138 U CN 203570138U CN 201320581802 U CN201320581802 U CN 201320581802U CN 203570138 U CN203570138 U CN 203570138U
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- door
- door body
- sheet
- deslagging
- slag
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Abstract
The utility model relates to the field of coal mills, in particular to an improved deslagging double-layer door of a coal mill. The door comprises an upper door body, a lower door body, a door sheet, a packing, J-shaped sealing rings and a plug board. Corresponding slag-drip openings are formed in the upper door body and the lower door body. The door sheet is arranged between the upper door body and the lower door body in a sliding mode, one end of the door sheet stretches out of the edge of the upper door body and the edge of the lower door body, and the door sheet is of a straight sheet shape. The J-shaped sealing rings matched with the door sheet are arranged in the slag-drip openings. The packing for sealing the stretching end of the door sheet is arranged at the edge of one end of the upper door body and the edge of one end of the lower door body, and the other end of the upper door body and the other end of the lower door body are sealed through the plug board. According to the improved deslagging double-layer door, the structure of the deslagging double-layer door is changed, the size of the door sheet and the length of the door bodies are reduced, the contact area with the upper door body and the lower door body is reduced, and therefore friction force is reduced, the action distance of the door sheet is shortened to the diameter size of a slag falling opening, the door is flexible to open and close in the operating process, and running efficiency of the door is improved.
Description
Technical field
The utility model relates to coal pulverizer field, specifically a kind of coal pulverizer modified deslagging two sects.
Background technology
The raw coal of power plant enters middling speed MPS coal pulverizer by conveying device, raw coal is processed into coal dust, and by hot blast, coal dust is sent into boiler combustion.Because there being a certain proportion of gangue in raw coal, cannot be processed into coal dust, after the screening through coal pulverizer, gangue is entered to deslagging chamber, at coal pulverizer, after operation a period of time, by hydraulic slag discharging, pebble coal is transported to assigned address.While rinsing pebble coal, open pebble coal flushing water, close deslagging one sect of dreg discharging box top, open deslagging two sects, pebble coal in dreg discharging box falls into deslagging threeway through slag dropping tube, then by pebble coal flushing water, pebble coal is transported to stone coal bunker through slag pipe, in dreg discharging box, pebble coal rinses when complete, close deslagging two sects, open deslagging one sect, close pebble coal flushing water, whole tapping process finishes, thus deslagging two sect switching manipulations flexibly, good seal and the convenient not accumulated slag of the slag that falls be vital;
Deslagging two sects are former is designed to long board plug type door, door-plate is middle with the cinder notch that falls, long 1.2 meters of door-plate, 800 millimeters of operating distances, two ends all adopt packing_seal, the cinder notch that falls adopts rubber o-ring sealing, because of the design of door body, structure problem two frequent bites in sect in actual motion, causes the major safety risks such as slag blockage, the accumulated slag coking of slag storehouse, the interior water inlet of coal pulverizer.
Utility model content
For in prior art because of door body design, structure problem two frequent bites in sect in actual motion, cause in slag blockage, the accumulated slag coking of slag storehouse, coal pulverizer the problems such as water inlet, the utility model provides a kind of coal pulverizer modified deslagging two sects.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of coal pulverizer modified deslagging two sects, comprise the body of visiting, Xiamen body, door-plate, packing, J RunddichtringO and closure plate, described body and the Xiamen body of visiting is provided with corresponding slag-drip opening, door-plate is slidably arranged in visits between body and Xiamen body, and stretch out from the edge of visit body and Xiamen body one end, described door-plate is straight plate shape, at slag-drip opening place, be provided with the J RunddichtringO matching with door-plate, visit the edge of body and body one end, Xiamen be provided with for sealing the packing of door-plate external part, the other end of visit body and Xiamen body seals by closure plate;
Described J RunddichtringO is fixed by snap ring;
Described packing is fixed by gland.
The beneficial effects of the utility model:
The utility model is by structurally changing deslagging two sects, wherein door-plate is changed into straight plate shape by original centre with the cinder notch that falls, and door-plate size, door body length shorten, and the contact area of visiting between body and Xiamen body reduces, thereby frictional force reduces, door-plate operating distance shortens to the diameter dimension of cinder notch, and while making to operate, switch is flexible, has improved the efficiency of its operation;
The utility model is sealed at both ends by changing door body, and closure plate replaces original gland, and the cinder notch that falls sealing changes the fixing J RunddichtringO of band clasp into and replaces original O type circle, has stopped slag inclusion, folder foreign matter, has leaked slag, drainage;
The utility model has changed the cinder notch size that falls, and the cinder notch that falls changes flaring type into by straight pipe type, makes slag speed faster, accumulated slag not, and deslagging two road door switch are flexible, and coal pulverizer is normal deslagging smoothly, has guaranteed that pulverized coal preparation system normally works;
The utility model can extend the life cycle at deslagging two sects, when reducing labor strength and operating risk, has guaranteed to greatest extent the Stability and dependability of coal pulverizer when deslagging, has reduced the input cost of production equipment.
Accompanying drawing explanation
Fig. 1 the utility model structural representation;
Fig. 2 pebble coal deslagging flow chart;
Reference numeral: 1, the body of visiting, 2, Xiamen body, 3, door-plate, 4, packing, 5, J RunddichtringO, 6, gland, 7, snap ring, 8, closure plate, 9, slag-drip opening.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is further elaborated.
As shown in the figure: a kind of coal pulverizer modified deslagging two sects, comprise the body 1 of visiting, Xiamen body 2, door-plate 3, packing 4, J RunddichtringO 5 and closure plate 8, described body 1 and the Xiamen body 2 of visiting is provided with corresponding slag-drip opening 9, door-plate 3 is slidably arranged in visits between body 1 and Xiamen body 2, and stretch out from the edge of visit body 1 and Xiamen body 2 one end, described door-plate 3 is straight plate shape, at slag-drip opening 9 places, be provided with the J RunddichtringO 5 matching with door-plate 3, visit the edge of body 1 and Xiamen body 2 one end be provided with for sealing the packing 4 of door-plate 3 external parts, the other end of body 1 and Xiamen body 2 of visiting seals by closure plate 8, described J RunddichtringO 5 is fixed by snap ring 7, described packing 4 is fixed by gland 6.
While rinsing pebble coal, open pebble coal flushing water, close deslagging one sect of dreg discharging box top, open deslagging two sects, the pebble coal in dreg discharging box falls into deslagging threeway through slag dropping tube, then by pebble coal flushing water, pebble coal is transported to stone coal bunker through slag pipe, in dreg discharging box, pebble coal rinses when complete, closes deslagging two sects, opens deslagging one sect, close pebble coal flushing water, whole tapping process finishes.
Claims (3)
1. coal pulverizer modified deslagging two sects, it is characterized in that: comprise the body of visiting (1), Xiamen body (2), door-plate (3), packing (4), J RunddichtringO (5) and closure plate (8), the described body of visiting (1) and Xiamen body (2) are provided with corresponding slag-drip opening (9), door-plate (3) is slidably arranged between the body of visiting (1) and Xiamen body (2), and stretch out from the edge of the body of visiting (1) and Xiamen body (2) one end, described door-plate (3) is straight plate shape, at slag-drip opening (9), locate to be provided with the J RunddichtringO (5) matching with door-plate (3), visit the edge of body (1) and Xiamen body (2) one end be provided with for sealing the packing (4) of door-plate (3) external part, visit the other end of body (1) and Xiamen body (2) by closure plate (8) sealing.
2. coal pulverizer modified deslagging as claimed in claim 1 two sects, is characterized in that: described J RunddichtringO (5) is fixing by snap ring (7).
3. coal pulverizer modified deslagging as claimed in claim 1 two sects, is characterized in that: described packing (4) is fixing by gland (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581802.7U CN203570138U (en) | 2013-09-22 | 2013-09-22 | Improved deslagging double-layer door of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581802.7U CN203570138U (en) | 2013-09-22 | 2013-09-22 | Improved deslagging double-layer door of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570138U true CN203570138U (en) | 2014-04-30 |
Family
ID=50537872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320581802.7U Expired - Fee Related CN203570138U (en) | 2013-09-22 | 2013-09-22 | Improved deslagging double-layer door of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107694736A (en) * | 2017-11-15 | 2018-02-16 | 张家口煜达电力科技有限公司 | Coal pulverizer ash gate and coal pulverizer |
-
2013
- 2013-09-22 CN CN201320581802.7U patent/CN203570138U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107694736A (en) * | 2017-11-15 | 2018-02-16 | 张家口煜达电力科技有限公司 | Coal pulverizer ash gate and coal pulverizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |