CN206064592U - A kind of medium-speed pulverizer support sealing device - Google Patents
A kind of medium-speed pulverizer support sealing device Download PDFInfo
- Publication number
- CN206064592U CN206064592U CN201621031718.8U CN201621031718U CN206064592U CN 206064592 U CN206064592 U CN 206064592U CN 201621031718 U CN201621031718 U CN 201621031718U CN 206064592 U CN206064592 U CN 206064592U
- Authority
- CN
- China
- Prior art keywords
- drive plate
- medium
- speed pulverizer
- sealing device
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
The utility model discloses a kind of medium-speed pulverizer support sealing device, belongs to medium-speed pulverizer support field of sealing technology.Medium-speed pulverizer support sealing device of the present utility model, including support seal casinghousing and drive plate, support seal casinghousing include upper and lower connected upper connector and lower connector, and the top of drive plate is provided with seam under drive plate；Also include choked flow mechanism, choked flow mechanism is installed on upper connector, and choked flow mechanism is located at the place of being association of activity and inertia of seam and upper connector under drive plate；Choked flow mechanism includes the block ring that cross section is " shape ", and the medial surface of the block ring is enclosed within the lateral surface of upper connector, and the upper side of the block ring is just to seam under the drive plate of top.This utility model has carried out effective protection to the fit clearance under drive plate between seam and upper connector.
Description
Technical field
This utility model is related to medium-speed pulverizer support field of sealing technology, more particularly, it relates to a kind of medium-speed pulverizer machine
Seat sealing device.
Background technology
At present in China's Thermal Power Generation Industry, medium-speed pulverizer is widely applied, and wherein ZGM types, MPS type medium-speed pulverizers are occupied
Larger share.Medium-speed pulverizer is thermal power plant's heavy duty boiler unit pulverized coal preparation system common equipment, is the main of boiler controller system
One of energy consumption equipment, its operation conditions are closely related with the economic benefit of power plant.The sealing gland that stone coal discharge causes in coal pulverizer
Component wear and gas sealing system leakage are the FAQs in medium-speed pulverizer running, and thus bring parts replacement with
And the increase of maintenance of equipment expense, the operating cost of boiler controller system is substantially increased, the economic benefit of power plant has been had a strong impact on.
Meanwhile, the generally metal labyrinth seal of the support sealing employing of existing medium-speed pulverizer.Metal labyrinth seal is
Misunderstand each other sealing means, in operation due to the change of coal pulverizer operating mode and sealing blast, between sound, inevitably produce mill
Wipe, coal pulverizer rotating shaft is damaged to a certain extent, sealing effectiveness is reduced, the increase leaked out causes the further drop of sealing air blast
It is low, form the leakage of coal dust.On the one hand leakage of pulverized coal causes reductor to run under rugged environment, and substantial amounts of dust is filled into subtracting
In fast machine, oil quality deterioration is made, reduce the service life of coal pulverizer, and there is high-temperature hot-air and cause fire to cause device damage
It is dangerous；On the other hand also environment in severe contamination factory.
For the weak point that above-mentioned metal labyrinth seal is present, propose in prior art close in the support of medium-speed pulverizer
Seal up and adopt carbon pressurizing, for example patent publication No.：CN 203548914U, publication date：On April 16th, 2014, innovation and creation name
Referred to as：A kind of inner seal structure of HP medium-speed pulverizers, this application case disclose a kind of inner seal structure of HP medium-speed pulverizers,
The lower ring of ring, sealing medium ring and sealing in the sealing being respectively provided with upper, middle and lower, gapless radial floating sealing device have
The alignment pin that can be moved back and forth along the radial direction of coal pulverizer rotating shaft back and forth, alignment pin are connected with carbon dam by spring.Should
The advantage of application case is：High temperature resistant, it is wear-resisting and have self-lubricating property, coal pulverizer rotating shaft will not be caused in running
Abrasion, greatly reduces coal pulverizer overhaul frequency, while convenient disassembly, shortens the overhaul duration.
Although there is above advantage using carbon pressurizing in the support sealing of medium-speed pulverizer, in actual applications not
Can there is problems with avoiding：Shaking when having deviation, operation due to the concentricity that drive plate in installation process is sealed with support
The problems such as dynamic, cleaning pebble coal screeding device is damaged, sealing air blast is too low, is caused seam under drive plate and is sealed with support
Fit clearance between the upper connector of housing is easily worn and torn, and change is big, and hot blast is leaked in a large number, and substantial amounts of coal grain can be carried when serious.
The thing followed is that the position that carbon dam is damaged, drive plate bottom and carbon dam coordinate groove, sealing blast occurs
Maintain situations such as not living.If processing not in time and will cause following impact：(1) at carbon dam and under drive plate stop portion leakage
Wind, leakage powder can cause production scene seriously polluted, affect to carry out production strictly in line with rules and regulations；(2) sealing air forces down substantial amounts of heat when primary air pressure
Wind leaks and can directly jeopardize the safety of reductor and surrounding devices；(3) performance driving economy of coal pulverizer declines, unit power consumption of coal pulverizing index
Substantially rise.
In sum, how to overcome in existing medium-speed pulverizer because between the cooperation under drive plate between seam and upper connector
Gap is easily worn and torn and becomes variety of problems that is big and causing, is the technical problem of urgent need to resolve in prior art.
Utility model content
1. utility model technical problem to be solved
The purpose of this utility model is to overcome in existing medium-speed pulverizer because under drive plate between seam and upper connector
Fit clearance easily wear and tear and become variety of problems that is big and causing, there is provided a kind of medium-speed pulverizer support sealing device, to passing
Fit clearance under Moving plate between seam and upper connector has carried out effective protection.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that this utility model is provided is：
Medium-speed pulverizer support sealing device of the present utility model, including support seal casinghousing and drive plate, the support
Seal casinghousing includes upper and lower connected upper connector and lower connector, and the top of the drive plate is provided with seam under drive plate；Also
Including choked flow mechanism, the choked flow mechanism is installed on upper connector, and the choked flow mechanism be located at drive plate under seam with it is upper
The place of being association of activity and inertia of connector；
The choked flow mechanism includes the block ring that cross section is " ┓ shapes ", and the medial surface of the block ring is enclosed within upper connector
On lateral surface, the upper side of the block ring is just to seam under the drive plate of top.
Further improve as this utility model, the block ring is divided into multi-section circular arc, the two of every section of circular arc
End is extended with connecting rod, and on adjacent two sections of circular arcs, corresponding two connecting rods are fastened on one by a connecting bolt
Rise.
Further improve as this utility model, be evenly distributed on the lateral surface of the upper connector and laterally propped up
Frame, is threaded with regulating bolt upwards, the block ring is against at the top of the regulating bolt on each horizontal support
Downside.
Further improve as this utility model, on the medial surface and upper side of the block ring, be machined with filler
Airtight and watertight padding is filled with letter, described filler letter.
Further improve as this utility model, the airtight and watertight padding is graphite packing.
Further improve as this utility model, upper side and the seam under drive plate of the block ring keep 0.5
The gap of～2.5mm.
Further improve as this utility model, the upper connector and the lower connector are by the first fastening spiral shell
Bolt is fixed together, and the circular sealing cord of S-shaped is provided with the inside of first fastening bolt.
Further improve as this utility model, also including upper sealing ring and lower sealing ring, the upper sealing ring and
The lower sealing ring is fixed on the lower connector from top to bottom by the second fastening bolt；
Peace in annular groove, annular groove is respectively equipped with the upper sealing ring, the lower sealing ring medial surface relative with drive plate
Equipped with carbon dam, the carbon dam is sleeved on the excircle side of drive plate bottom and constitutes radial seal structure.
Further improve as this utility model, in the annular groove, be provided with the spring being connected with carbon dam, should
Spring is for carbon dam to be pressed to the excircle side of drive plate bottom.
Further improve as this utility model, in first fastening bolt, in second fastening bolt
It is combined with single ear anti-motion washer.
3. beneficial effect
The technical scheme provided using this utility model, compared with prior art, is had the advantages that：
(1), in this utility model, choked flow mechanism is installed on upper connector, and choked flow mechanism be located at drive plate under seam with
The place of being association of activity and inertia of upper connector, therefore, can be by choked flow mechanism between the cooperation under drive plate between seam and upper connector
Gap is protected, and prevents above-mentioned fit clearance from becoming the variety of problems for causing greatly because of abrasion；Specifically：Choked flow mechanism includes transversal
Block ring of the face for " ┓ shapes ", the medial surface of block ring are enclosed within the lateral surface of upper connector, are enclosed within by block ring medial surface
On upper connector lateral surface, be prevented from seam and upper connector under drive plate place's leaking out vertically of being association of activity and inertia,
Leakage powder, the upper side of block ring just to seam under the drive plate of top, by block ring upper side and seam under drive plate keep compared with
Little gap, on the one hand ensure that freely rotating for drive plate, on the other hand can suppress above-mentioned place of being association of activity and inertia along level side
To leak out, leak powder.
(2) in this utility model, by the setting of upper sealing ring and lower sealing ring, in the excircle side of drive plate bottom
The upper sealing structure for forming upper and lower twice carbon dam, improves the sealing property of drive plate bottom.
(3), in this utility model, the spring being connected with carbon dam in annular groove, is provided with, can be close by carbon by spring
Seal ring is pressed on the excircle side of drive plate bottom, it is ensured that sealing effectiveness；And carbon dam can float in annular groove, this
The gauge wear that place occurs can be compensated automatically by the effect of spring, it is ensured that sealing effectiveness, extend making for carbon dam
Use the life-span.
(4) in this utility model, block ring is divided into multi-section circular arc, and the two ends of every section of circular arc are extended with connecting rod,
On adjacent two sections of circular arcs, corresponding two connecting rods are connected and fixed by a connecting bolt, block ring are divided into many
Individual module recombinant is installed, and is greatly improved the convenient degree of block ring installation, and is facilitated the local after block ring is installed and adjusts
It has suffered journey.
(5), in this utility model, horizontal support, the welding of horizontal support on the lateral surface of upper connector, have been evenly distributed
Position determines according to the position of seam under drive plate and the height of block ring, is threaded with upwards on each horizontal support
Regulating bolt, the downside of block ring is against at the top of regulating bolt, the support of block ring, positioning is made by regulating bolt
With can easily change block ring location, so as to reach under adjustment block ring upper side and drive plate between seam
The effect in gap.
(6), in this utility model, the stuffing-box of filling airtight and watertight padding on the medial surface and upper side of block ring, is machined with,
So that between seam and upper connector, the sealing of fit clearance more preferably, further avoid place of being association of activity and inertia under drive plate
Leak out, leak powder phenomenon so that the fit clearance under drive plate between seam and upper connector is difficult the expansion that is worn；This
In utility model, graphite packing is selected in airtight and watertight padding, and the heat-resisting quantity of graphite packing is excellent, is suitable for medium-speed pulverizer support close
Seal up.
Description of the drawings
Fig. 1 (is not drawn into choked flow machine for the structural representation of the medium-speed pulverizer support sealing device of embodiment 1～7 in figure
Structure)；
Fig. 2 is the assembling schematic diagram of choked flow mechanism in embodiment 1～7；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is the structural representation of block ring in embodiment 2～7.
Label declaration in schematic diagram：
101st, block ring；102nd, horizontal support；103rd, regulating bolt；104th, connecting rod；105th, connecting bolt；106th, seal
Filler；201st, upper connector；202nd, lower connector；3rd, drive plate；301st, seam under drive plate；401st, the first fastening bolt；
402nd, sealing cord；501st, upper sealing ring；502nd, lower sealing ring；503rd, spring；504th, carbon dam；505th, the second fastening spiral shell
Bolt.
Specific embodiment
It is to make purpose, technical scheme and the advantage of this utility model embodiment clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described to the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model, rather than the embodiment of whole.Therefore, below to providing in the accompanying drawings
The detailed description of embodiment of the present utility model be not intended to limit claimed scope of the present utility model, but only
Represent selected embodiment of the present utility model.Based on the embodiment in this utility model, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of making creative work, belongs to the scope of this utility model protection.
To further appreciate that content of the present utility model, this utility model is described in detail with reference to accompanying drawing.
Embodiment 1
Medium-speed pulverizer is thermal power plant's heavy duty boiler unit pulverized coal preparation system common equipment, is the main power consumption of boiler controller system
One of equipment, its operation conditions are closely related with the economic benefit of power plant.The sealing gland part that stone coal discharge causes in coal pulverizer
Abrasion and gas sealing system leakage are the FAQs in medium-speed pulverizer running, and thus bring parts replacement and set
The increase of standby maintenance cost, substantially increases the operating cost of boiler controller system, has had a strong impact on the economic benefit of power plant.But,
The support sealing of existing medium-speed pulverizer is inevitably present problems with actual applications：Due to passing in installation process
Vibration, the screeding device of cleaning pebble coal when the concentricity that Moving plate is sealed with support has deviation, operation is damaged, sealing air blast
Too low the problems such as, cause the fit clearance under drive plate between the upper connector of seam and support seal casinghousing and easily wear and tear change
Greatly, hot blast is leaked in a large number, and substantial amounts of coal grain can be carried when serious.The thing followed is carbon dam damage, drive plate bottom
Is there is groove, sealing blast and maintains situations such as not living in the position coordinated with carbon dam, if process not in time will cause very
Ill effect, therefore, how to overcome in existing medium-speed pulverizer because between the cooperation under drive plate between seam and upper connector
Gap is easily worn and torn and becomes variety of problems that is big and causing, is the technical problem of urgent need to resolve in prior art.In of the present utility model
Speed coal mill support sealing device is just solving the problems referred to above, specific as follows：
With reference to Fig. 1～3, the medium-speed pulverizer support sealing device of the present embodiment, including support seal casinghousing and drive plate
3, support seal casinghousing includes upper and lower connected upper connector 201 and lower connector 202, and the top of drive plate 3 is provided with drive plate
Lower seam 301；Also include choked flow mechanism, choked flow mechanism is installed on upper connector 201, and choked flow mechanism is only located under drive plate
The place of being association of activity and inertia of mouth 301 and upper connector 201；Choked flow mechanism includes the block ring 101 that cross section is " ┓ shapes ", the block ring
101 medial surface is enclosed within the lateral surface of upper connector 201, and the upper side of the block ring 101 is just to stopping under the drive plate of top
Mouth 301.
In the present embodiment, choked flow mechanism is installed on upper connector 201, and choked flow mechanism is located at seam 301 under drive plate
With the place of being association of activity and inertia of upper connector 201, therefore, can by choked flow mechanism to seam under drive plate 301 and upper connector 201 it
Between fit clearance protected, prevent above-mentioned fit clearance because abrasion become it is big the variety of problems that causes；Specifically：Choked flow machine
Structure includes the block ring 101 that cross section is " ┓ shapes ", and the medial surface of block ring 101 is enclosed within the lateral surface of upper connector 201, is led to
Cross 101 medial surface of block ring to be enclosed within 201 lateral surface of upper connector, be prevented from seam 301 and upper connector 201 under drive plate
Place's leaking out, leaking powder vertically of being association of activity and inertia, the upper side of block ring 101 just to seam 301 under the drive plate of top,
101 upper side of block ring is kept into less gap with seam 301 under drive plate, freely turning for drive plate 3 is on the one hand ensure that
It is dynamic, on the other hand can suppress above-mentioned place's leaking out, leaking powder in the horizontal direction of being association of activity and inertia.
Embodiment 2
With reference to Fig. 1～4, the medium-speed pulverizer support sealing device of the present embodiment, its structure are substantially the same manner as Example 1,
Further：Block ring 101 is divided into multi-section circular arc (being four arcses in concrete the present embodiment), the two ends of every section of circular arc
Connecting rod 104 is extended with, on adjacent two sections of circular arcs, corresponding two connecting rods 104 are solid by a connection of connecting bolt 105
It is scheduled on together.
In the present embodiment, block ring 101 is divided into multi-section circular arc, and the two ends of every section of circular arc are extended with connecting rod 104,
On adjacent two sections of circular arcs, corresponding two connecting rods 104 are connected and fixed by a connecting bolt 105, by block ring
101 are divided into multiple module recombinants installs, and greatly improves the convenient degree of the installation of block ring 101, and facilitates block ring
Local directed complete set process after 101 installations.
Embodiment 3
With reference to Fig. 1～4, the medium-speed pulverizer support sealing device of the present embodiment, its structure are substantially the same manner as Example 2,
Further：Horizontal support 102 is evenly distributed on the lateral surface of upper connector 201, screw thread on each horizontal support 102
Regulating bolt 103 upwards is connected with, the top of regulating bolt 103 is against the downside of block ring 101.
In the present embodiment, horizontal support 102 on the lateral surface of upper connector 201, is evenly distributed, horizontal support 102
Welding position is determined according to the position of seam under drive plate 301 and the height of block ring 101, on each horizontal support 102
Regulating bolt 103 upwards is threaded with, the top of regulating bolt 103 is against the downside of block ring 101, by adjusting spiral shell
Support, positioning action of the bolt 103 to block ring 101, can easily change 101 location of block ring, so as to reach tune
Under 101 upper side of whole block ring and drive plate between seam 301 gap effect；Particularly choked flow mechanism long-play it
Afterwards, when gap changes between seam 301 under 101 upper side of block ring and drive plate, regulating bolt 103 can be adjusted by choked flow
Ring 101 is moved up and down, so as to keep under 101 upper side of block ring and drive plate between seam 301 gap in prescribed limit
It is interior, it is ensured that the pressure in sealed chamber, while having reached reduction maintenance duration, having reduced maintenance cost, adjust and simply and easily imitate
Really.
Embodiment 4
With reference to Fig. 1～4, the medium-speed pulverizer support sealing device of the present embodiment, its structure are substantially the same manner as Example 3,
Further：It is machined with the medial surface and upper side of block ring 101 in stuffing-box, stuffing-box and is filled with airtight and watertight padding
106；Airtight and watertight padding 106 is graphite packing.
In the present embodiment, the filler of filling airtight and watertight padding 106 on the medial surface and upper side of block ring 101, is machined with
Letter, so that the sealing of fit clearance more preferably, further avoid between seam 301 and upper connector 201 under drive plate
Place of being association of activity and inertia leaks out, leaks powder phenomenon, so that the fit clearance under drive plate between seam 301 and upper connector 201
It is difficult the expansion that is worn；In the present embodiment, graphite packing is selected in airtight and watertight padding 106, and the heat-resisting quantity of graphite packing is excellent, is adapted to
In the sealing of medium-speed pulverizer support.
Embodiment 5
With reference to Fig. 1～4, the medium-speed pulverizer support sealing device of the present embodiment, its structure are substantially the same manner as Example 4,
Further：The upper side of block ring 101 keeps the gap of 0.5～2.5mm with seam 301 under drive plate.
In this enforcement, upper side and the seam 301 under drive plate of block ring 101 keep the gap of 0.5～2.5mm, both full
The requirement that foot drive plate 3 is freely rotated, in turn ensures that certain between seam 301 under 101 upper side of block ring and drive plate
Sealing property.
Embodiment 6
With reference to Fig. 1～4, the medium-speed pulverizer support sealing device of the present embodiment, its structure are substantially the same manner as Example 5,
Further：Upper connector 201 and lower connector 202 are fixed together by the first fastening bolt 401, the first fastening bolt
The circular sealing cord 402 of S-shaped is provided with the inside of 401, upper connector 201 and lower company are able to ensure that by the circular sealing cord 402 of S-shaped
The air-tightness of contact surface between fitting 202.
Also include upper sealing ring 501 and lower sealing ring 502, upper sealing ring 501 and lower sealing ring 502 by the second fastening spiral shell
Bolt 505 is fixed on lower connector 202 from top to bottom；Upper sealing ring 501, lower sealing ring 502 medial surface relative with drive plate 3
On be respectively equipped with annular groove, carbon dam 504 is installed in annular groove, carbon dam 504 is sleeved on the cylindrical of 3 bottom of drive plate
Radial seal structure is constituted on all sides.By the setting of upper sealing ring 501 and lower sealing ring 502, in the outer of 3 bottom of drive plate
The sealing structure of upper and lower twice carbon dam 504 is formed on circumference side, the sealing property of 3 bottom of drive plate is improve.
Single ear anti-motion washer is combined with first fastening bolt 401, in the second fastening bolt 505, by monaural stop
Packing ring enables to the first fastening bolt 401, keeps stable fastening force, lifting to make during 505 use of the second fastening bolt
Use effect.
Embodiment 7
With reference to Fig. 1～4, the medium-speed pulverizer support sealing device of the present embodiment, its structure are substantially the same manner as Example 6,
Further：The spring 503 being connected with carbon dam 504 is provided with annular groove, the spring 503 is for by carbon dam
On the 504 excircle sides for pressing to 3 bottom of drive plate.
In the present embodiment, the spring 503 being connected with carbon dam 504 in annular groove, is provided with, can be by carbon by spring 503
Accurate seal ring 504 is pressed on the excircle side of 3 bottom of drive plate, it is ensured that sealing effectiveness；And carbon dam 504 can be in ring
Float in groove, the gauge wear for occurring herein can be compensated automatically by the effect of spring 503, it is ensured that sealing effectiveness, extend
The service life of carbon dam 504.
The medium-speed pulverizer support sealing device of the present embodiment, overcome in existing medium-speed pulverizer because under drive plate seam with
Fit clearance between upper connector is easily worn and torn and becomes variety of problems that is big and causing, extends the service life of equipment, saves
Maintenance cost, the safety that improve coal pulverizer operation, economy, reduce maintenance workload, reduce labor intensity, together
When improve scene and carry out production strictly in line with rules and regulations level.
Below schematically this utility model and embodiments thereof are described, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by which, in the case where objective is created without departing from this utility model, design without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (10)
1. a kind of medium-speed pulverizer support sealing device, including support seal casinghousing and drive plate (3), the support seal casinghousing
Including upper and lower connected upper connector (201) and lower connector (202), the top of the drive plate (3) is only provided with drive plate
Mouth (301)；It is characterized in that：Also include choked flow mechanism, the choked flow mechanism is installed on upper connector (201), and the resistance
Stream mechanism is located at the place of being association of activity and inertia of seam (301) and upper connector (201) under drive plate；
The choked flow mechanism includes the block ring (101) that cross section is " ┓ shapes ", and the medial surface of the block ring (101) is enclosed within company
On the lateral surface of fitting (201), the upper side of the block ring (101) is just to seam (301) under the drive plate of top.
2. medium-speed pulverizer support sealing device according to claim 1, it is characterised in that：Block ring (101) quilt
Multi-section circular arc is divided into, the two ends of every section of circular arc are extended with connecting rod (104), corresponding two connections on adjacent two sections of circular arcs
Bar (104) is connected and fixed by a connecting bolt (105).
3. medium-speed pulverizer support sealing device according to claim 2, it is characterised in that：The upper connector (201)
Lateral surface on be evenly distributed horizontal support (102), regulation spiral shell upwards is threaded with each horizontal support (102)
Bolt (103), is against the downside of the block ring (101) at the top of the regulating bolt (103).
4. medium-speed pulverizer support sealing device according to claim 3, it is characterised in that：The block ring (101)
It is machined with medial surface and upper side in stuffing-box, described filler letter and is filled with airtight and watertight padding (106).
5. medium-speed pulverizer support sealing device according to claim 4, it is characterised in that：The airtight and watertight padding (106)
For graphite packing.
6. medium-speed pulverizer support sealing device according to claim 5, it is characterised in that：The block ring (101)
Upper side keeps the gap of 0.5～2.5mm with seam (301) under drive plate.
7. medium-speed pulverizer support sealing device according to claim 6, it is characterised in that：The upper connector (201)
It is fixed together by the first fastening bolt (401) with the lower connector (202), on the inside of first fastening bolt (401)
It is provided with the circular sealing cord of S-shaped (402).
8. medium-speed pulverizer support sealing device according to claim 7, it is characterised in that：Also include upper sealing ring
(501) and lower sealing ring (502), the upper sealing ring (501) and the lower sealing ring (502) are by the second fastening bolt
(505) it is fixed on from top to bottom on the lower connector (202)；
Annular groove is respectively equipped with the upper sealing ring (501), the lower sealing ring (502) medial surface relative with drive plate (3),
Carbon dam (504) is installed in annular groove, the carbon dam (504) is sleeved on the outer circumferential sides of drive plate (3) bottom
Radial seal structure is constituted on face.
9. medium-speed pulverizer support sealing device according to claim 8, it is characterised in that：It is provided with the annular groove and carbon
The spring (503) that accurate seal ring (504) connects, the spring (503) is for carbon dam (504) is pressed under drive plate (3)
On the excircle side in portion.
10. the medium-speed pulverizer support sealing device according to claim 8～9 any one, it is characterised in that：Described
Single ear anti-motion washer is combined with one fastening bolt (401), in second fastening bolt (505).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621031718.8U CN206064592U (en) | 2016-08-31 | 2016-08-31 | A kind of medium-speed pulverizer support sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621031718.8U CN206064592U (en) | 2016-08-31 | 2016-08-31 | A kind of medium-speed pulverizer support sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206064592U true CN206064592U (en) | 2017-04-05 |
Family
ID=58438390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621031718.8U Active CN206064592U (en) | 2016-08-31 | 2016-08-31 | A kind of medium-speed pulverizer support sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206064592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882594A (en) * | 2019-04-08 | 2019-06-14 | 顾伟 | Drive plate sealing device |
| CN113983171A (en) * | 2021-09-26 | 2022-01-28 | 华能甘肃西固热电有限公司 | Base dynamic and static sealing device for ZGM95G type coal mill |
-
2016
- 2016-08-31 CN CN201621031718.8U patent/CN206064592U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882594A (en) * | 2019-04-08 | 2019-06-14 | 顾伟 | Drive plate sealing device |
| CN113983171A (en) * | 2021-09-26 | 2022-01-28 | 华能甘肃西固热电有限公司 | Base dynamic and static sealing device for ZGM95G type coal mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206064592U (en) | A kind of medium-speed pulverizer support sealing device | |
| CN204100783U (en) | Rotary kiln hermetically-sealed construction | |
| CN204458640U (en) | Nitrogen energy-storage hydraulic cylinder | |
| CN206168553U (en) | Combined type choked flow device | |
| CN201618582U (en) | Rubber flexible sealing device for middle-speed mill base | |
| CN202251971U (en) | Sealing device for door shaft of air door of air duct of thermal power plant | |
| CN201264812Y (en) | High temperature airlock valve | |
| CN105083884A (en) | Novel rotary sealing valve | |
| CN203868334U (en) | Sealing device for base of coal pulverizer | |
| CN102022540A (en) | Floating shaft lever sealing structure | |
| CN205001515U (en) | Design has bearing seal of labyrinth seals structure | |
| CN204025693U (en) | A kind of seal arrangement of medium-speed pulverizer pull bar | |
| CN101629723B (en) | Side sealing device of water cooling vibrating stoker and water cooling wall | |
| CN203796958U (en) | Horizontal type pyrolysis dry distillation furnace sealing structure | |
| CN205260829U (en) | Medium speed pulverizer pull rod | |
| CN217234396U (en) | Sealing assembly for lower frame body of medium-speed coal mill | |
| CN203548914U (en) | Inner sealing structure of HP medium speed coal mill | |
| CN207131852U (en) | Coal pulverizer hot blast pitch spindle nose sealing structure | |
| CN201702678U (en) | Medium-speed millstone shaft sealing ring device | |
| CN202267081U (en) | Labyrinth type air pre-heater | |
| CN207376687U (en) | Center-rotary joint and hydraulic crawler excavator | |
| CN205207444U (en) | Split type boiler dragveyer afterbody supports sealing device | |
| CN217519223U (en) | Positive pressure sealing device for equipment roll shaft | |
| CN102927281B (en) | Segmented packing seal device for leveling roll of scatterer of dust-free paper forming box | |
| CN202143857U (en) | Coal pulverizer base sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |