CN212856006U - Medium speed pulverizer can dismantle grinding roller cover - Google Patents
Medium speed pulverizer can dismantle grinding roller cover Download PDFInfo
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- CN212856006U CN212856006U CN202021378787.2U CN202021378787U CN212856006U CN 212856006 U CN212856006 U CN 212856006U CN 202021378787 U CN202021378787 U CN 202021378787U CN 212856006 U CN212856006 U CN 212856006U
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- grinding roller
- roller sleeve
- abrasion
- protective tile
- coal mill
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Abstract
The utility model relates to a detachable grinding roller sleeve of a medium speed coal mill, which comprises a grinding roller sleeve matrix, an anti-abrasion protective tile component, an elastic sealing ring and a fixing component; the grinding roller sleeve carcass is a hollow cylinder; the outer circumferential surface of the grinding roller sleeve matrix is sleeved with an elastic sealing ring matched with the outer circumferential surface in shape; the anti-abrasion protective tiles are uniformly distributed on the outer peripheral surface of the elastic sealing ring through fixing pieces, and the anti-abrasion protective tile assembly comprises an anti-abrasion protective tile A and an anti-abrasion protective tile B which are matched with each other in shape; the fixing member includes a fixing bolt or a fixing screw. The grinding roller sleeve has the characteristics of reasonable structural design and convenience in operation and use, and the workload of replacing the grinding roller sleeve of the medium-speed coal mill can be greatly reduced; the construction process for replacing the grinding roller sleeve of the medium-speed coal mill is simplified, so that the grinding roller sleeve is easy to replace, and the purchase cost of the grinding roller sleeve of the medium-speed coal mill is reduced; the maintenance time for replacing the grinding roller sleeve of the medium-speed coal mill is shortened.
Description
Technical Field
The utility model relates to a coal pulverizer technical field especially relates to a roller shell can be dismantled to medium speed coal pulverizer.
Background
The grinding roller sleeve of the traditional medium-speed coal mill is in the forms of an integral casting structure, a casting and surfacing structure, a composite ceramic structure and the like (see the attached figures 1-3 in the specification). When the grinding roller sleeve is worn seriously and cannot be used continuously, the grinding roller sleeve needs to be integrally lifted out of a coal mill and then is integrally replaced. Thus, the drawbacks of the conventional grinding roller sleeves are mainly manifested in that:
1. the coal mill body is not provided with a grinding roller inlet and outlet passage, and the grinding roller sleeve can be hoisted out for replacing the grinding roller sleeve only after the separator, a tripod and other related equipment are dismantled by splitting the separator outlet powder pipe; in some coal mills installed in new years, the coal mill body is provided with a grinding roller device access passage, but more workload is needed, and longer time is spent.
2. The grinding roller sleeve is characterized in that structural forms such as integral casting, casting and surfacing, composite ceramic and the like are adopted, the integral casting structure can be used for surfacing repair at most 3 times according to the abrasion condition, the conventional casting and surfacing structure can be used for surfacing for 3-5 times, and the ceramic grinding roller sleeve can be used for 1 time only; no matter what kind of structural style's grinding roller cover, final grinding roller cover needs whole change, and is uneconomical.
3. The conventional grinding roller sleeve needs to be replaced after the whole grinding roller device is disassembled, the process is complex, the period is long, and the construction is complicated.
The utility model discloses just based on under this research background and propose, aim at providing a middle speed coal pulverizer can dismantle the grinding roller cover in order to overcome above-mentioned defect, satisfy the user demand of enterprise.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough that exists to grinding roller cover among the prior art, the utility model aims to provide a: the detachable grinding roller sleeve of the medium-speed coal mill has the characteristics of reasonable structural design and convenience in operation and use, and the workload of replacing the grinding roller sleeve of the medium-speed coal mill can be greatly reduced; the construction process for replacing the grinding roller sleeve of the medium-speed coal mill is simplified, so that the grinding roller sleeve is easy to replace, and the purchase cost of the grinding roller sleeve of the medium-speed coal mill is reduced; the maintenance time for replacing the grinding roller sleeve of the medium-speed coal mill is shortened.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a detachable grinding roll sleeve of a medium-speed coal mill comprises a grinding roll sleeve matrix, an anti-abrasion protective tile assembly, an elastic sealing ring and a fixing piece; the grinding roller sleeve carcass is a hollow cylinder; the outer circumferential surface of the grinding roller sleeve matrix is sleeved with an elastic sealing ring matched with the outer circumferential surface in shape; the anti-abrasion protective tiles are uniformly distributed on the outer peripheral surface of the elastic sealing ring through fixing pieces, and the anti-abrasion protective tile assembly comprises an anti-abrasion protective tile A and an anti-abrasion protective tile B which are matched with each other in shape; the fixing member includes a fixing bolt or a fixing screw.
As a further optimization of the above solution, the fixing member further comprises a spring washer cooperating with the fixing bolt or the fixing screw.
As a further optimization of the scheme, the anti-abrasion protection tile A and the anti-abrasion protection tile B are fixedly connected into an anti-abrasion protection tile assembly through a mortise and tenon structure.
As a further optimization of the above scheme, a raised tenon portion is provided on the abrasion-proof protective tile a or the abrasion-proof protective tile B, and a groove portion which is mutually matched with the raised tenon portion is provided on the abrasion-proof protective tile B or the abrasion-proof protective tile a.
As a further optimization of the scheme, the grinding roller sleeve carcass is also provided with reinforcing ribs.
Adopt the utility model discloses a medium speed pulverizer can dismantle grinding roller cover has beneficial effect to be shown: the workload of replacing the grinding roller sleeve is reduced, the material cost of replacing the grinding roller sleeve is saved, the working flow of replacing the grinding roller sleeve is simplified, the working efficiency of replacing the grinding roller sleeve is improved, and other indexes of the coal mill are guaranteed to be unchanged. Can dismantle grinding roller shell abrasionproof and protect the tile, can select different materials and structure for use according to the actual conditions of difference, ensure that the coal pulverizer can long-term safe and stable operation.
Drawings
FIG. 1 is a schematic structural diagram of a grinding roller sleeve integrally cast in the prior art.
Fig. 2 is a schematic structural diagram of a grinding roller sleeve for casting and surfacing in the prior art.
FIG. 3 is a schematic diagram of a grinding roller sleeve made of composite ceramic in the prior art.
Fig. 4 is the utility model relates to a membrane module's in grinding roller cover can be dismantled to medium speed coal pulverizer structural schematic.
Detailed Description
The following description of the detachable grinding roller assembly of the medium speed coal mill of the present invention is made in detail with reference to fig. 4.
A detachable grinding roll sleeve of a medium-speed coal mill comprises a grinding roll sleeve matrix 1, an anti-abrasion protective tile assembly, an elastic sealing ring 4 and a fixing piece; the grinding roller sleeve carcass is a hollow cylinder; the outer circumferential surface of the grinding roller sleeve matrix is sleeved with an elastic sealing ring matched with the outer circumferential surface in shape; the anti-abrasion protective tiles are uniformly distributed on the outer peripheral surface of the elastic sealing ring through fixing pieces, and the anti-abrasion protective tile assembly comprises an anti-abrasion protective tile A2 and an anti-abrasion protective tile B3 which are matched with each other in shape; the fixing member includes a fixing bolt 5 or a fixing screw. The fixing also comprises a spring washer 6 which co-operates with a fixing bolt or a fixing screw. The abrasion-proof protective tile A and the abrasion-proof protective tile B are fixedly connected into an abrasion-proof protective tile assembly through a mortise and tenon structure. The anti-abrasion protective tile comprises an anti-abrasion protective tile A and an anti-abrasion protective tile B, wherein the anti-abrasion protective tile A is provided with a convex tenon portion, and the anti-abrasion protective tile B is provided with a groove portion matched with the convex tenon portion. Reinforcing ribs are also arranged on the grinding roller sleeve carcass.
The detachable grinding roller sleeve of the medium speed coal mill of the utility model is adopted, wherein,
1) the grinding roller sleeve consists of a grinding roller sleeve matrix 1, an anti-abrasion protective tile A2, an anti-abrasion protective tile B3, an elastic seal 4, a bolt 5 and a spring washer 6. When the grinding roller sleeve is replaced, the grinding roller sleeve does not need to be replaced after the grinding roller device is integrally removed, so that the workload of replacing the grinding roller sleeve is reduced;
2) when the detachable grinding roller sleeve is purchased, only the abrasion-proof protective tiles A and B are purchased 2 and 3, so that the material cost is saved;
3) when the detachable grinding roller sleeve is replaced, only the abrasion-proof protective tiles A and 3 or the abrasion-proof protective tiles B need to be replaced, or the abrasion-proof protective tiles B and the abrasion-proof protective tiles B are replaced, the whole grinding roller sleeve does not need to be replaced, and the maintenance time is shortened;
4) the detachable grinding roller sleeve is replaced by only 2 abrasion-proof protective tiles A and 3 abrasion-proof protective tiles B, the whole grinding roller device does not need to be dismantled for replacement, the process is simple, the operation is convenient, and the working efficiency of replacing the grinding roller sleeve is improved;
5) the detachable grinding roller sleeve 2 anti-abrasion protective tiles A and 3 anti-abrasion protective tiles B adopt a special mutual pressing structure, and 5 bolts are positioned on a non-working surface, so that the safety and reliability of the structure are ensured;
6) the detachable grinding roller sleeve 2, the abrasion-proof protective tiles A and 3, the abrasion-proof protective tile B and the grinding roller sleeve body 1 adopt special matching structure design, the structure is stable, and the abrasion-proof protective tiles can not fall off even under the worst working condition of special conditions;
7) the detachable grinding roller sleeve 1 is characterized in that a grinding roller sleeve blank body is cast and formed by adopting special materials, and has the characteristics of impact resistance and deformation resistance while ensuring a strong processing type;
8) the detachable abrasion-proof protective tile of the grinding roller sleeve can be made of different materials and designed structures according to actual coal quality, primary air temperature and air quantity conditions, and the ultra-long stable service life of the grinding roller sleeve is ensured.
The embodiments described above are intended to facilitate one of ordinary skill in the art to understand and practice the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that modifications and alterations made without departing from the scope of the present invention are within the protection scope of the present invention.
Claims (5)
1. The utility model provides a middle speed coal pulverizer can dismantle grinding roller cover which characterized in that: comprises a grinding roller sleeve matrix (1), an anti-abrasion protective tile assembly, an elastic sealing ring (4) and a fixing piece; the grinding roller sleeve carcass is a hollow cylinder; the outer circumferential surface of the grinding roller sleeve matrix is sleeved with an elastic sealing ring matched with the outer circumferential surface in shape; the anti-abrasion protective tiles are uniformly distributed on the outer peripheral surface of the elastic sealing ring through fixing pieces, and the anti-abrasion protective tile assembly comprises an anti-abrasion protective tile A (2) and an anti-abrasion protective tile B (3) which are matched with each other in shape; the fixing piece comprises a fixing bolt (5) or a fixing screw.
2. The detachable grinding roller sleeve of the medium speed coal mill according to claim 1, characterized in that: the fixing element also comprises a spring washer (6) co-operating with the fixing bolt or fixing screw.
3. The detachable grinding roller sleeve of the medium speed coal mill according to claim 1, characterized in that: the abrasion-proof protective tile A and the abrasion-proof protective tile B are fixedly connected into an abrasion-proof protective tile assembly through a mortise and tenon structure.
4. The detachable grinding roller sleeve of the medium speed coal mill according to claim 3, characterized in that: the anti-abrasion protective tile comprises an anti-abrasion protective tile A and an anti-abrasion protective tile B, wherein the anti-abrasion protective tile A is provided with a convex tenon portion, and the anti-abrasion protective tile B is provided with a groove portion matched with the convex tenon portion.
5. The detachable grinding roller sleeve of the medium speed coal mill according to claim 4, characterized in that: reinforcing ribs are also arranged on the grinding roller sleeve carcass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021378787.2U CN212856006U (en) | 2020-07-14 | 2020-07-14 | Medium speed pulverizer can dismantle grinding roller cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021378787.2U CN212856006U (en) | 2020-07-14 | 2020-07-14 | Medium speed pulverizer can dismantle grinding roller cover |
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| Publication Number | Publication Date |
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| CN212856006U true CN212856006U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021378787.2U Active CN212856006U (en) | 2020-07-14 | 2020-07-14 | Medium speed pulverizer can dismantle grinding roller cover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102392240B1 (en) * | 2021-11-16 | 2022-04-29 | (주)코리아테크 | Separable Type Pulverization Roller Assembly |
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2020
- 2020-07-14 CN CN202021378787.2U patent/CN212856006U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102392240B1 (en) * | 2021-11-16 | 2022-04-29 | (주)코리아테크 | Separable Type Pulverization Roller Assembly |
| WO2023090551A1 (en) * | 2021-11-16 | 2023-05-25 | (주)코리아테크 | Separable pulverization roller assembly |
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