CN204799356U - Low -speed low speed coal mill abrasionproof decreases screw shell - Google Patents
Low -speed low speed coal mill abrasionproof decreases screw shell Download PDFInfo
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- CN204799356U CN204799356U CN201520326809.3U CN201520326809U CN204799356U CN 204799356 U CN204799356 U CN 204799356U CN 201520326809 U CN201520326809 U CN 201520326809U CN 204799356 U CN204799356 U CN 204799356U
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- screw shell
- low speed
- abrasionproof
- coal mill
- liner
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Abstract
The utility model discloses a low -speed low speed coal mill abrasionproof decreases screw shell, including screw shell (1), the inside cartridge of screw shell (1) has abrasionproof inside lining (2), abrasionproof inside lining (2) are for opening the cylinder inside lining that has a plurality of openings (3) on the side surface, the port department of abrasionproof inside lining (2) is equipped with fixed snap ring (4) that are used for with screw shell (1) swing joint. The beneficial effects of the utility model are that, simple structure, the practicality is strong.
Description
Technical field
The utility model relates to power industry, particularly the anti-wear screw shell of a kind of low speed low speed coal mill.
Background technology
At present, by coal and coal dust erosive wear during the ball type pulverizer system low speed coal mill screw shell runs, be generally 1-2 overhaul life service life, need first to remove, pulverized coal channel elbow is installed again when screw shell is changed, working strength is large, causes the waste of manpower, financial resources simultaneously.
Utility model content
The purpose of this utility model is to solve the problem, and devises the anti-wear screw shell of a kind of low speed low speed coal mill.
Realizing above-mentioned purpose the technical solution of the utility model is, the anti-wear screw shell of a kind of low speed low speed coal mill, comprise screw shell 1, the inside of described screw shell 1 is fitted with abrasionproof liner 2, described abrasionproof liner 2 is cylindrical shape liner side surface having multiple opening 3, and the port of described abrasionproof liner 2 is provided with the fixing snap ring 4 for being flexibly connected with screw shell 1.
Described abrasionproof liner 2 overall diameter is identical with screw shell 1 interior diameter.
Described abrasionproof liner 2 snaps fit onto port, screw shell 1 two ends by fixing snap ring 4.
Described opening 3 is circular hole.
The anti-wear screw shell of low speed low speed coal mill utilizing the technical solution of the utility model to make, screw shell inwall installs abrasionproof liner, and liner plate and screw shell are reliably fixed, periodic replacement liner, avoid screw shell integral replacing, reduce working strength, save manpower financial capacity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-wear screw shell of a kind of low speed low speed coal mill described in the utility model;
In figure, 1, screw shell; 2, abrasionproof liner; 3, opening; 4, fixing snap ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is specifically described, as shown in Figure 1, the anti-wear screw shell of a kind of low speed low speed coal mill, comprise screw shell 1, the inside of described screw shell 1 is fitted with abrasionproof liner 2, described abrasionproof liner 2 is cylindrical shape liner side surface having multiple opening 3, and the port of described abrasionproof liner 2 is provided with the fixing snap ring 4 for being flexibly connected with screw shell 1; Described abrasionproof liner 2 overall diameter is identical with screw shell 1 interior diameter; Described abrasionproof liner 2 snaps fit onto port, screw shell 1 two ends by fixing snap ring 4; Described opening 3 is circular hole.
The feature of the present embodiment is, the inside of screw shell is fitted with abrasionproof liner, abrasionproof liner is cylindrical shape liner side surface having multiple opening, the port of abrasionproof liner is provided with the fixing snap ring for being flexibly connected with screw shell, and screw shell inwall installs abrasionproof liner, and liner plate and screw shell are reliably fixed, periodic replacement liner, avoid screw shell integral replacing, reduce working strength, save manpower financial capacity.
In the present embodiment, when coal pulverizer runs, coal and coal dust enter screw shell inside, because abrasionproof liner is by making it reliably be fixed on internal surface of sleeve pipe with being fixedly connected with of fixing snap ring, abrasionproof liner can stop coal and coal dust directly to wash away the tube wall of screw shell, the life cycle of effective raising screw shell, only need change abrasionproof liner when abrasionproof liner reaches failure criteria, again reduce working strength while economizing on resources.
Technique scheme only embodies the optimal technical scheme of technical solutions of the utility model; those skilled in the art all embody principle of the present utility model to some variations that wherein some part may be made, and belong within protection domain of the present utility model.
Claims (4)
1. the anti-wear screw shell of low speed low speed coal mill, comprise screw shell (1), it is characterized in that, the inside of described screw shell (1) is fitted with abrasionproof liner (2), described abrasionproof liner (2) is for side surface having the cylindrical shape liner of multiple opening (3), and the port of described abrasionproof liner (2) is provided with the fixing snap ring (4) for being flexibly connected with screw shell (1).
2. the anti-wear screw shell of low speed low speed coal mill according to claim 1, is characterized in that, described abrasionproof liner (2) overall diameter is identical with screw shell (1) interior diameter.
3. the anti-wear screw shell of low speed low speed coal mill according to claim 1, is characterized in that, described abrasionproof liner (2) snaps fit onto screw shell (1) port, two ends by fixing snap ring (4).
4. the anti-wear screw shell of low speed low speed coal mill according to claim 1, is characterized in that, described opening (3) is circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326809.3U CN204799356U (en) | 2015-05-20 | 2015-05-20 | Low -speed low speed coal mill abrasionproof decreases screw shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326809.3U CN204799356U (en) | 2015-05-20 | 2015-05-20 | Low -speed low speed coal mill abrasionproof decreases screw shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204799356U true CN204799356U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520326809.3U Active CN204799356U (en) | 2015-05-20 | 2015-05-20 | Low -speed low speed coal mill abrasionproof decreases screw shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN204799356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090549A (en) * | 2020-07-22 | 2020-12-18 | 神华国能集团有限公司 | Coal mill |
-
2015
- 2015-05-20 CN CN201520326809.3U patent/CN204799356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112090549A (en) * | 2020-07-22 | 2020-12-18 | 神华国能集团有限公司 | Coal mill |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |