CN205780832U - Coal pulverizer sealing system - Google Patents
Coal pulverizer sealing system Download PDFInfo
- Publication number
- CN205780832U CN205780832U CN201620417158.3U CN201620417158U CN205780832U CN 205780832 U CN205780832 U CN 205780832U CN 201620417158 U CN201620417158 U CN 201620417158U CN 205780832 U CN205780832 U CN 205780832U
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- CN
- China
- Prior art keywords
- coal pulverizer
- sealing
- ring
- coal
- seal
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- 239000003245 coal Substances 0.000 title claims abstract description 86
- 238000007789 sealing Methods 0.000 title claims abstract description 70
- 230000008676 import Effects 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
This utility model relates to medium-speed pulverizer technical field, particularly relates to a kind of coal pulverizer sealing system；Solve the problem that medium-speed pulverizer sealing air seals, including coal pulverizer, drive plate in coal pulverizer, coal pulverizer body on coal pulverizer seals, sealing air import on coal pulverizer seals, the ring packing seal of tube within coal pulverizer, the powder drum body that returns of coal pulverizer bottom seals and the outlet tube cell quick-action shutoff door sealing of coal pulverizer, coal pulverizer body seals and includes and the upper connection ring being connected on the upside of coal pulverizer drive plate, the lower connection ring being connected with bottom coal pulverizer drive plate, seal casinghousing and carbon ring sealing ring, drive plate, upper connection ring and lower connection ring are arranged in seal casinghousing, it is provided with rubber strip between upper connection ring and drive plate to seal, it is provided with carbon ring sealing ring between lower connection ring and seal casinghousing, V-arrangement rubber seal it is provided with outside carbon ring sealing ring.This utility model is be applicable to coal pulverizer equipment.
Description
Technical field
This utility model relates to medium-speed pulverizer technical field, particularly relates to a kind of coal pulverizer sealing system.
Background technology
Along with the fast development of fired power generating unit, medium-speed pulverizer the most gradually replaces low speed coal mill, becomes big power station
Main powder manufacturing apparatus, the advantage of medium-speed pulverizer have small investment, run power consumption is low, noise is little, easy to operate, plant maintenance work
Work amount is little, but the shortcoming also having it: main mill part is easy to wear, equipment overhaul cycle is short, repair time length, can not be with boiler maintenance
Cycle synchronisation.The size direct relation of coal pulverizer powder process ability exerting oneself of unit, therefore, and can be by medium-speed pulverizer redundancy
Design ensures reliability and the safety of unit operation.
Utility model content
The problem that this utility model medium-speed pulverizer to be solved seals, it is provided that a kind of coal pulverizer sealing system.
For solving above-mentioned technical problem, this utility model takes techniques below scheme: a kind of coal pulverizer sealing system, including
Sealing air import on the sealing of drive plate in coal pulverizer, coal pulverizer, the coal pulverizer body on coal pulverizer, coal pulverizer seals, mill
The ring packing seal of tube within coal machine, the powder drum body that returns of coal pulverizer bottom seal and the outlet tube cell quick-action shutoff door of coal pulverizer
Sealing, coal pulverizer body seals and includes connecting bottom coal pulverizer drive plate with the upper connection ring being connected on the upside of coal pulverizer drive plate
Lower connection ring, seal casinghousing and the carbon ring sealing ring connect, drive plate, upper connection ring and lower connection ring are arranged at capsul
Internal, it is provided with rubber strip between upper connection ring and drive plate and seals, be provided with carbon ring between lower connection ring and seal casinghousing and seal
Ring, is provided with " V " shape rubber seal outside carbon ring sealing ring.The rubber strip strong by good springiness anti-extrusion ability seals, and can disappear
Except drive plate with on be connected the unfavorable factor in gap of ring, it is ensured that the sealing function of sealing air, coal pulverizer body is sealed internal
Form effective sealing gland effect.Use good springiness, resistant to elevated temperatures " V " shape rubber seal at the coal pulverizer close ring of lower seal carbon
Outside adds one mechanical seal, reduces drive plate and the lower gap being connected ring, reaches sealing effectiveness.
Sealing air import on coal pulverizer seals the sealing air import hand-operated valve including in sealing air import, sealing air import
Equipped with locking device on hand-operated valve.
The blast of described coal pulverizer sealing air inlet valve is more than locking device unlatching during blast 2000pa in coal pulverizer.By
It is in operation in sealing air inlet valve and there will be self-closing phenomenon, cause coal pulverizer body to seal sealing gland ineffective, to coal pulverizer
After suitable blast (more than blast 2000pa in coal pulverizer) adjusted by sealing air inlet valve, it is carried out locking device, it is to avoid
It is self-closing that sealing air valve is in operation.
Described ring sealed tube is sealed into the wear-resisting arc plate installed additional on the windward side of the ring sealed tube within coal pulverizer.
Described powder drum body sealing of returning is the 16Mn wear-resisting steel plate that powder drum body bottom welding is returned in coal pulverizer bottom, returns powder drum body
On pin material use 1Cr18Ni9Ti.Wearability can be effectively increased.
Described outlet tube cell quick-action shutoff door is sealed into and is bolted on the square of outlet tube cell quick-action shutoff door
Sealing member.Be possible not only to guarantee equipment occur leakage powder in the case of, fasten end face bolt, and fasten end face bolt without
In the case of effect, only need to change quad seal in the case of the outlet tube cell quick-action shutoff door that do not disintegrates and i.e. can reach sealing effectiveness,
And saving of labor, save time, can complete between low-load period.
Having the beneficial effect that of technique scheme of the present utility model:
This utility model is implemented totally at Luo He power plant #5, #6 stove 12 medium-speed pulverizer equipment, controls leak source
Reason, in practice it has proved that this equipment is administered and substantially achieved sealing tightly, coal pulverizer body does not occur that leakage coal dust, leakage ash, carbon are close
Seal ring excessive wear does not reaches phenomenon in service life, eliminates coal pulverizer equipment leakage problem, has reached desired effect, meets mill
The use requirement of coal machine.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the coal pulverizer body sealed structural representation of this utility model coal pulverizer sealing system；
Fig. 2 is the outlet tube cell quick-action shutoff door sealed structural representation of this utility model coal pulverizer sealing system.
Description of reference numerals:
1, upper connection ring；
2, drive plate；
3, lower connection ring；
4, carbon ring sealing ring；
5, seal casinghousing；
6, outlet tube cell quick-action shutoff door；
7, quad seal part；
8, bolt.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by.
It will be appreciated that be only this utility model a part of embodiment rather than the whole enforcement of described embodiment
Example.Based on the embodiment in this utility model, those of ordinary skill in the art are obtained under not making creative work premise
The all other embodiments obtained, broadly fall into the scope of this utility model protection.
As depicted in figs. 1 and 2, a kind of coal pulverizer sealing system, including the drive plate in coal pulverizer, coal pulverizer, coal-grinding
Coal pulverizer body sealing on machine, the sealing air import sealing on coal pulverizer, the ring packing seal of tube within coal pulverizer, coal-grinding
The powder drum body that returns of machine bottom seals and the outlet tube cell quick-action shutoff door sealing of coal pulverizer.
Described coal pulverizer body seals and includes and the upper connection ring 1 being connected on the upside of coal pulverizer drive plate and coal pulverizer transmission
Lower connection ring 3, seal casinghousing 5 and the carbon ring sealing ring 4 that tray bottom connects, drive plate 2, upper connection ring 1 and lower connection ring 3
It is arranged in seal casinghousing 5, is provided with rubber strip between upper connection ring 1 and drive plate 2 and seals, lower connection ring 3 and seal casinghousing 5
Between be provided with carbon ring sealing ring 4, be provided with " V " shape rubber seal outside carbon ring sealing ring 4.
Sealing air import on coal pulverizer seals the sealing air import hand-operated valve including in sealing air import, sealing air import
Equipped with locking device on hand-operated valve.
The blast of described coal pulverizer sealing air inlet valve is more than locking device unlatching during blast 2000pa in coal pulverizer.
Described ring sealed tube is sealed into the wear-resisting arc plate installed additional on the windward side of the ring sealed tube within coal pulverizer.
Described powder drum body sealing of returning is the 16Mn wear-resisting steel plate that powder drum body bottom welding is returned in coal pulverizer bottom, returns powder drum body
On pin material use 1Cr18Ni9Ti.
The most as shown in Figure 2, described outlet tube cell quick-action shutoff door is sealed into and is fixed on outlet tube cell speed by bolt 8
The quad seal part 7 of dynamic shutoff door 6.
This utility model is implemented totally at Luo He power plant #5, #6 stove 12 medium-speed pulverizer equipment, controls leak source
Reason, in practice it has proved that this equipment is administered and substantially achieved sealing tightly, coal pulverizer body does not occur that leakage coal dust, leakage ash, carbon are close
Seal ring excessive wear does not reaches phenomenon in service life, eliminates coal pulverizer equipment leakage problem, has reached desired effect, meets mill
The use requirement of coal machine.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art in the technical scope that this utility model discloses, the change that can readily occur in
Change or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with right
The protection domain required is as the criterion.
Claims (6)
1. a coal pulverizer sealing system, it is characterised in that include the drive plate in coal pulverizer, coal pulverizer, mill on coal pulverizer
Coal machine body seals, the sealing air import sealing on coal pulverizer, the ring packing seal of tube within coal pulverizer, coal pulverizer bottom
Returning powder drum body to seal and the outlet tube cell quick-action shutoff door sealing of coal pulverizer, coal pulverizer body seals and includes and coal pulverizer drive plate
The upper connection ring of upside connection and lower connection ring, seal casinghousing and the carbon ring sealing ring being connected bottom coal pulverizer drive plate,
Drive plate, upper connection ring and lower connection ring are arranged in seal casinghousing, are provided with rubber strip close between upper connection ring and drive plate
Envelope, is provided with carbon ring sealing ring, is provided with " V " shape rubber seal outside carbon ring sealing ring between lower connection ring and seal casinghousing
Part.
Coal pulverizer sealing system the most according to claim 1, it is characterised in that the sealing air import sealed bundle on coal pulverizer
Include the sealing air import hand-operated valve in sealing air import, equipped with locking device on sealing air import hand-operated valve.
Coal pulverizer sealing system the most according to claim 2, it is characterised in that described coal pulverizer sealing air import is manual
The blast of valve is more than locking device unlatching during blast 2000pa in coal pulverizer.
Coal pulverizer sealing system the most according to claim 3, it is characterised in that described ring sealed tube is sealed into coal-grinding
The wear-resisting arc plate installed additional on the windward side of the ring sealed tube within machine.
Coal pulverizer sealing system the most according to claim 4, it is characterised in that described powder drum body sealing of returning is coal pulverizer
The 16Mn wear-resisting steel plate of powder drum body bottom welding is returned in bottom, and the material returning the pin on powder drum body uses 1Cr18Ni9Ti.
Coal pulverizer sealing system the most according to claim 5, it is characterised in that described outlet tube cell quick-action shutoff door is close
Envelope is for being bolted on the quad seal part of outlet tube cell quick-action shutoff door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417158.3U CN205780832U (en) | 2016-05-06 | 2016-05-06 | Coal pulverizer sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417158.3U CN205780832U (en) | 2016-05-06 | 2016-05-06 | Coal pulverizer sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780832U true CN205780832U (en) | 2016-12-07 |
Family
ID=57412733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417158.3U Active CN205780832U (en) | 2016-05-06 | 2016-05-06 | Coal pulverizer sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780832U (en) |
-
2016
- 2016-05-06 CN CN201620417158.3U patent/CN205780832U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 232008 Luohe Town, Datong District, Huainan City, Anhui Province Patentee after: Datang Anhui Power Generation Co.,Ltd. Huainan Luohe Power Generation Branch Country or region after: China Address before: 232008 Luohe Power Plant, Luohe Town, Datong District, Huainan City, Anhui Province Patentee before: DATANG HUAINAN LUOHE POWER PLANT Country or region before: China |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240520 Address after: 232000, 100 meters east of Luohe Police Station in Luohe Town, Datong District, Huainan City, Anhui Province Patentee after: Huainan Luohe Power Generation Co.,Ltd. Country or region after: China Address before: 232008 Luohe Town, Datong District, Huainan City, Anhui Province Patentee before: Datang Anhui Power Generation Co.,Ltd. Huainan Luohe Power Generation Branch Country or region before: China |