CN218267242U - Flexible shaft base air sealing device of coal mill - Google Patents
Flexible shaft base air sealing device of coal mill Download PDFInfo
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- CN218267242U CN218267242U CN202221960648.XU CN202221960648U CN218267242U CN 218267242 U CN218267242 U CN 218267242U CN 202221960648 U CN202221960648 U CN 202221960648U CN 218267242 U CN218267242 U CN 218267242U
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- atmoseal
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- fluororubber
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Abstract
The utility model discloses a flexible shaft base atmoseal device of coal pulverizer, including grinding bowl hub, side organism, labyrinth atmoseal ring, nickel silk graphite packing ring and the flexible sealing ring of fluororubber, the grinding bowl hub rotationally passes the side organism, labyrinth atmoseal ring's outer wall is fixed in the inside of side organism, just labyrinth atmoseal ring encircles the periphery setting of grinding bowl hub, the outer wall of nickel silk graphite packing ring is fixed in the outside of side organism, the inner wall of nickel silk graphite packing ring with the outer wall butt of grinding bowl hub, the outer wall of the flexible sealing ring of fluororubber is fixed in the outside of side organism, the inner wall of the flexible sealing ring of fluororubber with the outer wall butt of grinding bowl hub, labyrinth atmoseal ring, nickel silk graphite packing ring and the flexible sealing ring of fluororubber by the inside of side organism sets gradually to the outside. This technical scheme is used for solving current coal pulverizer shaft base atmoseal device and has wearing and tearing, sealed effect not enough and the problem of noise.
Description
Technical Field
The utility model belongs to the technical field of coal pulverizer equipment, concretely relates to flexible axle base atmoseal device of coal pulverizer.
Background
The coal mill shaft-based air sealing device is not only a sealing part between the grinding bowl hub and the side machine body, but also a sealing device for preventing sealing air and pebble coal inside the coal mill from leaking. The former design axle base atmoseal device of HP type medium speed pulverizer is the metal and adjusts the gasket, and it has following problem: firstly, when the grinding bowl hub operates, the area of the shaft base air sealing device has obvious harsh noise; secondly, the shaft-based metal sealing sheet is complex to install, high in debugging difficulty and high in maintenance workload, and the metal sealing sheet is easy to wear a shaft in the operation process of the grinding bowl hub, so that the repairing time is long, the difficulty is high and the cost is high; thirdly, gaps are reserved between the shaft base metal sealing sheet, the grinding bowl hub and the side machine body, the complete sealing effect cannot be achieved, and the pebble coal injection is often accompanied to pollute the environment.
SUMMERY OF THE UTILITY MODEL
To the technical problem that above-mentioned exists, the utility model provides a flexible axle base atmoseal device of coal pulverizer to solve the problem that current coal pulverizer axle base atmoseal device exists wearing and tearing, sealed effect is not enough and the noise, this flexible axle base atmoseal device installation and debugging of coal pulverizer is simple, can effectively reduce axle base atmoseal device regional noise, this flexible axle base atmoseal device not only counter shaft wearing and tearing are little simultaneously, and sealing performance is good, the air leakage of former axle base atmoseal department has been solved, the stone coal sprays the scheduling problem, the daily maintenance work load is reduced, the maintenance cost is practiced thrift.
The utility model provides a flexible shaft base atmoseal device of coal pulverizer, including grinding bowl hub, side organism, labyrinth atmoseal ring, nickel silk graphite packing ring and the flexible sealing ring of fluororubber, the grinding bowl hub rotationally passes the side organism, labyrinth atmoseal ring's outer wall is fixed in the inside of side organism, just labyrinth atmoseal ring encircles the periphery setting of grinding bowl hub, the outer wall of nickel silk graphite packing ring is fixed in the outside of side organism, the inner wall of nickel silk graphite packing ring with the outer wall butt of grinding bowl hub, the outer wall of the flexible sealing ring of fluororubber is fixed in the outside of side organism, the inner wall of the flexible sealing ring of fluororubber with the outer wall butt of grinding bowl hub, labyrinth atmoseal ring, nickel silk graphite packing ring and the flexible sealing ring of fluororubber by the inside of side organism sets gradually to the outside.
Furthermore, the flexible shaft base gas seal device of the coal mill further comprises an inner gas seal ring, the inner gas seal ring is fixed on the side machine body, and the labyrinth gas seal ring is welded on the inner gas seal ring.
Further, the flexible fluororubber sealing ring is arranged in a double-layer mode.
The flexible shaft base gas sealing device of the coal mill adopts the labyrinth gas sealing ring as an inner gas sealing device, adopts the nickel wire graphite packing ring and the fluororubber flexible sealing ring as an outer gas sealing device, and in the operation process of the grinding bowl hub, the inner gas sealing device does not rub with the grinding bowl hub, and can effectively prevent pebble coal from entering a gas sealing chamber. The nickel wire graphite packing ring and the fluororubber flexible sealing ring are in contact fit with the grinding bowl hub, so that the equipment is guaranteed to be nearly zero in the process of operation, such as sealing wind, pebble coal and the like, the peripheral noise of the equipment is reduced, the cleanliness of the peripheral environment is improved, the abrasion of a sealing material to a shaft is greatly reduced, the maintenance cost of the shaft is reduced, and the operation reliability of the equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a flexible shaft-based gas seal device of a coal mill.
Detailed Description
The utility model discloses a flexible shaft base atmoseal device of coal pulverizer, this flexible shaft base atmoseal device installation and debugging of coal pulverizer are simple, can effectively reduce the regional noise of shaft base atmoseal device, and this flexible shaft base atmoseal device not only the counter shaft wearing and tearing are little simultaneously, and sealing performance is good moreover, has solved former shaft base atmoseal department and has leaked out, the stone coal sprays the scheduling problem, has reduced daily maintenance work load, has practiced thrift the cost of overhaul.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, only some embodiments, not all embodiments, of the present invention are described. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model discloses a flexible axle base atmoseal device of coal pulverizer, including grinding bowl hub 1, side organism 3, labyrinth atmoseal ring 2, nickel silk graphite packing ring 4 and the flexible sealing ring of fluororubber 5, grinding bowl hub 1 rotationally passes side organism 3, labyrinth atmoseal ring 2's outer wall is fixed in the inside of side organism 3, just labyrinth atmoseal ring 2 encircles the periphery setting of grinding bowl hub 1, the outer wall of nickel silk graphite packing ring 4 is fixed in the outside of side organism 3, the inner wall of nickel silk graphite packing ring 4 with the outer wall butt of grinding bowl hub 1, the outer wall of the flexible sealing ring of fluororubber 5 is fixed in the outside of side organism 3, the inner wall of the flexible sealing ring of fluororubber 5 with the outer wall butt of grinding bowl hub 1, labyrinth atmoseal ring 2, nickel silk graphite packing ring 4 and the flexible sealing ring of fluororubber 5 by the inside of side organism 3 sets gradually to the outside.
The flexible shaft base gas seal device of the coal mill further comprises an inner gas seal ring 6, the inner gas seal ring 6 is fixed on the side machine body 3, and the labyrinth gas seal ring 2 is welded on the inner gas seal ring 6.
The fluororubber flexible sealing ring 5 is arranged in a double-layer mode.
This coal pulverizer flexible shaft base atmoseal device adopts labyrinth atmoseal ring 2 as interior gas seal device, adopts nickel silk graphite packing ring 4 and fluororubber flexible sealing ring 5 as outer gas seal device, and at grinding bowl hub 1 operation in-process, interior gas seal device neither rubs with grinding bowl hub 1, again can effectually prevent that the stone coal from getting into the air-tight seal room. Nickel silk graphite packing ring 4 and fluororubber flexible sealing ring 5 and grinding bowl hub 1 contact cooperation, can not only guarantee that equipment is at operation in-process sealed wind, pebble coal etc. and reveal near zero, reduce the peripheral noise of equipment, improve all ring edge border cleanliness, moreover by a wide margin reduced the wearing and tearing of sealing material counter shaft, reduce the cost of maintenance of axle, the reliability of lifting means operation.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model discloses to the ordinary skilled person in technical field's the prerequisite that does not deviate from the utility model discloses under the design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (3)
1. The utility model provides a flexible shaft base atmoseal device of coal pulverizer, characterized in that, includes grinding bowl hub, side organism, labyrinth atmoseal ring, nickel silk graphite packing ring and the flexible sealing ring of fluororubber, the grinding bowl hub rotationally passes the side organism, labyrinth atmoseal ring's outer wall is fixed in the inside of side organism, just labyrinth atmoseal ring encircles the periphery setting of grinding bowl hub, the outer wall of nickel silk graphite packing ring is fixed in the outside of side organism, the inner wall of nickel silk graphite packing ring with the outer wall butt of grinding bowl hub, the outer wall of the flexible sealing ring of fluororubber is fixed in the outside of side organism, the inner wall of the flexible sealing ring of fluororubber with the outer wall butt of grinding bowl hub, labyrinth atmoseal ring, nickel silk graphite packing ring and the flexible sealing ring of fluororubber by the inside of side organism sets gradually to the outside.
2. The coal mill flexible shaft based gas seal according to claim 1, further comprising an inner gas seal ring fixed to the side block, wherein the labyrinth gas seal ring is welded to the inner gas seal ring.
3. The coal pulverizer flexible shaft-based gas seal device of claim 1, wherein the fluororubber flexible seal ring is provided in two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221960648.XU CN218267242U (en) | 2022-07-26 | 2022-07-26 | Flexible shaft base air sealing device of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221960648.XU CN218267242U (en) | 2022-07-26 | 2022-07-26 | Flexible shaft base air sealing device of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218267242U true CN218267242U (en) | 2023-01-10 |
Family
ID=84763174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221960648.XU Active CN218267242U (en) | 2022-07-26 | 2022-07-26 | Flexible shaft base air sealing device of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218267242U (en) |
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2022
- 2022-07-26 CN CN202221960648.XU patent/CN218267242U/en active Active
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