CN215694633U - Online adjustable ceramic wear-resistant ditch protection device - Google Patents
Online adjustable ceramic wear-resistant ditch protection device Download PDFInfo
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- CN215694633U CN215694633U CN202121401453.7U CN202121401453U CN215694633U CN 215694633 U CN215694633 U CN 215694633U CN 202121401453 U CN202121401453 U CN 202121401453U CN 215694633 U CN215694633 U CN 215694633U
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Abstract
The utility model discloses an online adjustable ceramic wear-resistant ditch protection device, which comprises a fan coal mill shell and a ceramic ditch protection device, wherein a supporting plate is arranged outside the fan coal mill shell, an adjusting mechanism is arranged outside the supporting plate, and the ceramic ditch protection device is arranged inside the fan coal mill shell; adjustment mechanism's tip and pottery protect the inside of ditch and offset tightly, the pottery protects the ditch setting in adjustment mechanism's below, through compressing tightly the backing plate, sealed pad, the cooperation of gland packing and compression gasket is used and can be realized the sealed to telescopic cylinder, avoid the inside material or the gaseous spill over of fan coal pulverizer housing in the course of the work, the ditch that adopts wear-resisting ceramic material simultaneously has prolonged the life of protecting the ditch group greatly, telescopic cylinder in the adjustment mechanism, the regulating action to ceramic ditch can be realized to the cooperation use of drive block and gallows, can adjust the ditch clearance, the gate need not be opened during the adjustment, do not need dismantle the hitting wheel, reduce the maintenance cost of fan coal pulverizer's maintenance.
Description
Technical Field
The utility model relates to the technical field of coal processing, in particular to an online adjustable ceramic wear-resistant ditch protection device.
Background
A fan coal mill is a device applied to a thermal generator set which burns high-moisture lignite to generate electricity, raw coal which is primarily dried by high-temperature furnace smoke enters a shell through a gate, the raw coal is beaten and crushed by a beating wheel with a beating plate, the crushed coal powder is further dried and then separated by a separator, and qualified coal powder is sent to a boiler to be combusted.
The casing is an important component of the fan coal mill and is a place for grinding coal powder by the fan coal mill, and a spiral volute surrounded by the circumferential protective plate and the striking wheel form a channel for gas-powder mixture. Because the protection ditch is positioned at the throat part of the molded line of the casing, in order to ensure the powder feeding capacity of the coal mill, the wind speed is higher at the position, the wind powder seriously erodes the protection ditch, and the service life of the protection ditch is shortened.
In addition, after the ditch protection is worn and torn, the gap of the throat part of the shell is increased, the lifting pressure head of the fan mill is reduced, the wind speed of the throat part is reduced, the powder carrying capacity of the coal mill is greatly influenced, the repairing and the ditch protection gap adjustment of the ditch protection are one of the important reasons for stopping mill maintenance of the fan mill, the maintenance frequency and the workload of the fan mill are greatly increased by the maintenance of the ditch protection, and therefore an online adjustable ceramic wear-resistant ditch protection device is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides an online adjustable ceramic wear-resistant ditch protection device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the online adjustable ceramic wear-resistant ditch protection device comprises a fan coal mill shell and a ceramic ditch protection device, wherein a support plate is arranged outside the fan coal mill shell, an adjusting mechanism is arranged outside the support plate, and the ceramic ditch protection device is arranged inside the fan coal mill shell;
the end part of the adjusting mechanism is tightly abutted with the interior of the ceramic protection ditch, and the ceramic protection ditch is arranged below the adjusting mechanism.
Preferably, the adjusting mechanism comprises a telescopic cylinder installed on the supporting plate, a piston rod of the telescopic cylinder penetrates through the supporting plate, a hanging bracket is installed at the tail end of the piston rod of the telescopic cylinder, and a driving block is installed at one end, far away from the telescopic cylinder, of the hanging bracket.
Preferably, a driving groove is formed in the side wall of the ceramic protection groove, and the driving block is abutted against the inner side wall of the driving groove.
Preferably, a sealing filler is arranged at the joint of the telescopic cylinder and the driving block.
Preferably, the space between the telescopic cylinder and the driving block is provided with the pressing base plate, a sealing gasket is arranged above the pressing base plate, the sealing gasket is tightly abutted to the outside of the telescopic cylinder, and the pressing base plate is tightly abutted to the outside of the supporting plate.
Preferably, a pressing gasket is arranged on the side wall, far away from the pressing base plate, of the supporting plate, and the pressing gasket is abutted against the outer portion of the telescopic cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model can realize the sealing of the telescopic cylinder by matching the compression base plate, the sealing gasket, the sealing filler and the compression gasket, avoids the overflow of materials or gas in the shell of the fan coal mill during the working process, and greatly prolongs the service life of the protection ditch group by adopting the protection ditch made of wear-resistant ceramic material.
The utility model can realize the adjusting function of the ceramic protection ditch by matching the telescopic cylinder, the driving block and the hanging bracket in the adjusting mechanism, can adjust the clearance of the protection ditch, does not need to open a gate during adjustment, does not need to disassemble a hitting wheel, prolongs the service time of the fan coal mill, and reduces the maintenance cost of the fan coal mill.
Drawings
FIG. 1 is a schematic perspective view of an on-line adjustable ceramic wear-resistant ditch protection device according to the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is an enlarged view of a portion B in fig. 3.
In the figure: 1. a fan mill housing; 2. ceramic ditch protection; 3. a support plate; 4. a telescopic cylinder; 5. pressing the base plate; 6. a gasket; 7. sealing and filling; 8. compressing the gasket; 9. a drive block; 10. a drive slot; 11. a hanger frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, the online adjustable ceramic wear-resistant ditch protection device comprises a fan coal mill shell 1 and a ceramic ditch protection 2, wherein a support plate 3 is arranged outside the fan coal mill shell 1, an adjusting mechanism is arranged outside the support plate 3, and the ceramic ditch protection 2 is arranged inside the fan coal mill shell 1;
the end part of the adjusting mechanism is abutted against the interior of the ceramic ditch 2, the ceramic ditch 2 is arranged below the adjusting mechanism, the adjusting mechanism comprises a telescopic cylinder 4 arranged on a supporting plate 3, a piston rod of the telescopic cylinder 4 penetrates through the supporting plate 3, a hanging bracket 11 is arranged at the tail end of the piston rod of the telescopic cylinder 4, a driving block 9 is arranged at one end, away from the telescopic cylinder 4, of the hanging bracket 11, a driving groove 10 is formed in the side wall of the ceramic ditch 2, the driving block 9 is abutted against the inner side wall of the driving groove 10, the ceramic ditches 2 are orderly arranged in a row and hung on the hanging bracket 11, and the telescopic cylinder 4 is fixed on the supporting plate 3 and is isolated outside the fan coal mill shell 1;
a sealing filler 7 is arranged at the joint of the telescopic cylinder 4 and the driving block 9, a pressing base plate 5 is arranged in a gap between the telescopic cylinder 4 and the driving block 9, a sealing gasket 6 is arranged above the pressing base plate 5, the sealing gasket 6 is tightly abutted with the outside of the telescopic cylinder 4, the pressing base plate 5 is tightly abutted with the outside of the supporting plate 3, a pressing gasket 8 is arranged on the side wall of the supporting plate 3 far away from the pressing base plate 5, and the pressing gasket 8 is tightly abutted with the outside of the telescopic cylinder 4;
the cooperation of compressing tightly backing plate 5, sealed 6, packings 7 and pressure pad 8 is used and can be realized the sealed of telescopic cylinder 4 with backup pad 3 junction, compresses tightly backing plate 5 and sealed 6 realization of filling up to the sealed of telescopic cylinder 4 one side, and pressure pad 8 realizes the sealed of telescopic cylinder 4 opposite side, and the packings 7 of filling in the department of running through of telescopic cylinder 4 and backup pad 3 realize the abundant sealed of adjustment mechanism.
When the ceramic coal mill is used, when the ceramic ditch 2 is worn, the gap of the throat part of the machine shell is increased, the lifting pressure head of the fan mill is reduced, the wind speed at the throat part is reduced, the telescopic cylinder 4 is started, the piston rod of the telescopic cylinder 4 moves outwards, the piston rod drives the hanging bracket 11 to move outwards, the hanging bracket 11 drives the driving block 9 to move outwards, the driving block 9 enables the ceramic ditch 2 to start to move in the outwards moving process, the distance between the ceramic ditch 2 and the striking wheel can be reduced in the moving process of the ceramic ditch 2, the striking wheel does not need to be dismounted, the service time of the fan coal mill is prolonged, and the overhaul and maintenance cost of the fan coal mill is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The online adjustable ceramic wear-resistant ditch protection device comprises a fan coal mill shell (1) and a ceramic ditch protection device (2), and is characterized in that a support plate (3) is mounted outside the fan coal mill shell (1), an adjusting mechanism is arranged outside the support plate (3), and the ceramic ditch protection device (2) is arranged inside the fan coal mill shell (1);
the end part of the adjusting mechanism is tightly abutted with the interior of the ceramic protection ditch (2), and the ceramic protection ditch (2) is arranged below the adjusting mechanism.
2. The on-line adjustable ceramic wear-resistant ditch protection device of claim 1, wherein the adjusting mechanism comprises a telescopic cylinder (4) installed on the support plate (3), a piston rod of the telescopic cylinder (4) penetrates through the support plate (3), a hanging bracket (11) is installed at the tail end of the piston rod of the telescopic cylinder (4), and a driving block (9) is installed at one end, far away from the telescopic cylinder (4), of the hanging bracket (11).
3. The on-line adjustable ceramic wear-resistant ditch protection device of claim 2, characterized in that the ceramic ditch protection device (2) is provided with a driving groove (10) on the side wall, and the driving block (9) is abutted against the inner side wall of the driving groove (10).
4. The on-line adjustable ceramic wear-resistant gutter arrangement according to claim 1, characterized in that a sealing packing (7) is arranged at the connection of the telescopic cylinder (4) and the driving block (9).
5. The on-line adjustable ceramic wear-resistant ditch protection device according to claim 1, wherein the pressing pad plate (5) is arranged in a gap between the telescopic cylinder (4) and the driving block (9), a sealing gasket (6) is arranged above the pressing pad plate (5), the sealing gasket (6) is tightly abutted against the outer part of the telescopic cylinder (4), and the pressing pad plate (5) is tightly abutted against the outer part of the supporting plate (3).
6. The on-line adjustable ceramic wear-resistant ditch protection device according to claim 5, characterized in that a pressing gasket (8) is arranged on the side wall of the support plate (3) far away from the pressing base plate (5), and the pressing gasket (8) is abutted against the outside of the telescopic cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121401453.7U CN215694633U (en) | 2021-06-23 | 2021-06-23 | Online adjustable ceramic wear-resistant ditch protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121401453.7U CN215694633U (en) | 2021-06-23 | 2021-06-23 | Online adjustable ceramic wear-resistant ditch protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215694633U true CN215694633U (en) | 2022-02-01 |
Family
ID=80044408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121401453.7U Active CN215694633U (en) | 2021-06-23 | 2021-06-23 | Online adjustable ceramic wear-resistant ditch protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215694633U (en) |
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2021
- 2021-06-23 CN CN202121401453.7U patent/CN215694633U/en active Active
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