CN220111295U - Wear-proof device for shell of vertical mill powder concentrator - Google Patents
Wear-proof device for shell of vertical mill powder concentrator Download PDFInfo
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- CN220111295U CN220111295U CN202321594132.2U CN202321594132U CN220111295U CN 220111295 U CN220111295 U CN 220111295U CN 202321594132 U CN202321594132 U CN 202321594132U CN 220111295 U CN220111295 U CN 220111295U
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- wear
- powder concentrator
- plate
- abrasion
- mounting plate
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- 239000000843 powder Substances 0.000 title claims description 55
- 238000003466 welding Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 25
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The wear-resistant guide plates are used as windward sides and are arranged on two sides of an outlet of the mill; the wear-resistant guide plate and the mounting plate are welded, an included angle a is formed between the wear-resistant guide plate and the mounting plate, and the included angle a is 10-45 degrees; the mounting plate is provided with at least two threaded holes and is fixedly arranged on the discharge hole cylinder body through bolt connection. The beneficial effects of the utility model are as follows: on the premise of achieving the same protection effect, the wear-resistant material used by the utility model is greatly reduced, and the cost can be greatly saved. Compared with the traditional mode, the abrasion-proof device has the advantages that the abrasion-proof layer is thicker due to the structural design, and the service life is longer.
Description
Technical Field
The utility model relates to a shell protection mode, in particular to a shell protection mode of a vertical mill powder concentrator.
Background
As a main grinding device, the vertical mill is increasingly used in the grinding industry. Along with the continuous improvement of the national requirements on energy conservation and environmental protection, the vertical mill is used as energy conservation and environmental protection equipment and is widely applied to grinding processing of raw materials, cement, coal dust, slag, steel slag and the like.
The powder selecting machine is used as an important component of the vertical mill, and the service life of the powder selecting machine directly influences the use of the whole vertical mill system. The wearing speed of each component of the powder concentrator directly influences the service life of the powder concentrator. When the powder concentrator works, besides the abrasion of the rotor and the rotor sealing structure of the powder concentrator, the shell of the powder concentrator also has abrasion phenomenon. Under the condition that a protective device is not added, the grinding through phenomenon of the shell of the powder concentrator often occurs, and in addition, the shell of the powder concentrator is worn to reduce the structural strength of the powder concentrator, so that other series of problems such as mechanism deformation and the like are caused. The damage to the powder concentrator housing means the damage to the powder concentrator. Although the shell can be repaired by repairing welded steel plates to strengthen the shell again, the problem of shell abrasion cannot be solved. The traditional powder concentrator shell protection mode is to additionally install a layer of wear-resistant plate in a shell in a welding mode or a bolt connection mode, but the wear-resistant plate is relatively more in wear-resistant materials, and the cost is higher; in addition, the whole wear-resisting plate layer is additionally arranged in the shell of the powder concentrator, so that waste of materials is generated. The outlet position of the powder selector is a low-pressure area, and the conveying direction of the finished powder selected by the powder selector is the direction of the outlet, so that the abrasion of the shell of the powder selector is uneven, and the whole inside of the shell of the powder selector is additionally provided with a wear-resisting plate, so that the waste of materials is unavoidable. The traditional mode of installing the wear-resisting plate protection powder concentrator shell additionally, the thickness of the wear-resisting layer is the thickness of the wear-resisting plate, so that the thickness of the wear-resisting plate is not likely to be very thick, the manufacturing cost is greatly increased due to the fact that the thickness of the wear-resisting plate is too thick, and the processing and the manufacturing are inconvenient.
Disclosure of Invention
The utility model aims to solve the technical problems that: the utility model aims to provide a wear-resistant device for a shell of a vertical mill powder concentrator, which solves the problem of wear of the shell of the powder concentrator and reduces production cost.
The technical scheme of the utility model is as follows:
the wear-resistant guide plates are used as windward sides and are arranged on two sides of an outlet of the mill; the wear-resistant guide plate and the mounting plate are welded, an included angle a is formed between the wear-resistant guide plate and the mounting plate, and the included angle a is 10-45 degrees; the mounting plate is provided with at least two threaded holes and is fixedly arranged on the discharge hole cylinder body through bolt connection.
The angle a is 30.
The wear-resistant guide plate is a welding plate or a wear-resistant composite plate, and the mounting plate is a common steel plate.
Spot welds are provided on the bolts.
The beneficial effects of the utility model are as follows: on the premise of achieving the same protection effect, the wear-resistant material used by the utility model is greatly reduced, and the cost can be greatly saved. The abrasion of the powder-containing air flow to the abrasion plate is surface abrasion, the abrasion area is large and the abrasion is continuous abrasion until the powder is sent out from the discharge hole, and compared with the traditional mode, the abrasion-proof device is linear abrasion, and the abrasion-proof device has thicker abrasion-proof layer and longer service life due to the structural design; the utility model adopts a staggered installation mode, so that the phenomenon that part of powder finished products are retained and settled at the rear side of the anti-wear device and the conveying efficiency of the finished products is influenced due to eddy current generated after the anti-wear device is additionally arranged is avoided. In order to reduce the influence of the additional lining plate on the powder feeding air flow, the angle of the anti-abrasion device can be selected to be proper according to the wind speed of the outlet of the mill, so that the influence of the anti-abrasion device on the air flow is reduced, and the conveying of the finished powder is ensured.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a perspective view of the present utility model;
FIG. 3 is a schematic view of the installation of the present utility model;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic diagram of the flow direction of the air flow inside the classifier;
FIG. 6 is a schematic view of the flow direction of the air flow in the powder concentrator at another angle;
FIG. 7 is a schematic diagram of the wear of a conventional powder concentrator shell with wear plates added;
fig. 8 is a schematic view of the wear of the powder concentrator shell of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 and 2, an anti-wear device for a vertical mill powder concentrator shell is formed by welding an anti-wear guide plate 1 and a mounting plate 2, wherein an included angle a is formed between the anti-wear guide plate 1 and the mounting plate 2, and two or more threaded holes 3 are formed in the mounting plate 2 for connection and fixation.
Further, an included angle a between the wear-resistant guide plate 1 and the mounting plate 2 is 10-45 degrees. The value of the included angle a is selected according to the wind speed of the outlet of the mill, and the larger the wind speed is, the smaller the included angle is, preferably 30 degrees.
Further, the wear-resistant guide plate 1 can be made of wear-resistant plates, welding plates, wear-resistant composite plates and other wear-resistant materials, and the mounting plate 2 is made of a common steel plate.
As shown in fig. 3 and 4, the wear-resistant guide plate is installed on two sides of a discharge hole of a powder concentrator during installation, the tail part of the wear-resistant device faces the direction of the discharge hole, and the wear-resistant guide plate 1 is used as a windward side and is installed on two sides of an outlet of a mill. The powder product is connected and fixed on the discharge hole cylinder 4 by bolts, the spot welding bolts 5 are loose, and the upper and lower anti-abrasion devices are installed in a staggered manner during installation, so that the problem that the powder product is retained and settled after the anti-abrasion devices and cannot be sent out of the mill once, and the conveying efficiency of the finished product powder is reduced is avoided. When the anti-wear device needs to be replaced, the anti-loosening point of the spot welding is cut, the connecting bolt is loosened, and the new anti-wear device is replaced.
As shown in fig. 5 and 6, the anti-wear device is arranged at two sides of a powder concentrator discharge port, the over-wind speed of a rotor of the powder concentrator is generally 8-10 m/s, the wind speed of an outlet of the powder concentrator is generally 30-50 m/s, and the air pressure at the outlet of the powder concentrator is lower (low-pressure area), so that the scouring abrasion of powder-containing gas to the outlet of the powder concentrator is very serious, especially at two sides of the powder concentrator discharge port.
As shown in fig. 7 and 8, the wear-resistant material used in the wear-resistant device is greatly reduced on the premise of achieving the same protection effect, so that the cost can be greatly saved. The abrasion of the powder-containing air flow to the abrasion plate is surface abrasion, the abrasion area is large and the abrasion is continuous abrasion until the powder is sent out from the discharge hole, and compared with the traditional mode, the abrasion-proof device is linear abrasion, and the abrasion-proof device has thicker abrasion-proof layer and longer service life due to the structural design; the anti-wear device adopts a staggered installation mode, so that the phenomenon that part of powder finished products are retained and settled at the rear side of the anti-wear device due to vortex generated after the anti-wear device is additionally installed is avoided, and the conveying efficiency of the finished products is influenced. In order to reduce the influence of the additional lining plate on the powder feeding air flow, the angle of the anti-abrasion device can be selected to be proper according to the wind speed of the outlet of the mill, so that the influence of the anti-abrasion device on the air flow is reduced, and the conveying of the finished powder is ensured.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the utility model.
Claims (4)
1. A vertical mill powder concentrator shell anti-wear device is characterized in that: the device comprises wear-resistant guide plates (1) and mounting plates (2) at two sides of a discharge hole of a powder concentrator, wherein the wear-resistant guide plates (1) are used as windward surfaces and are arranged at two sides of an outlet of a mill; the wear-resistant guide plate (1) and the mounting plate (2) are welded, an included angle a is arranged between the wear-resistant guide plate (1) and the mounting plate (2), and the included angle a is 10-45 degrees; the mounting plate (2) is provided with at least two threaded holes (3), and the mounting plate (2) is fixedly connected to the discharge port cylinder body (4) through bolts (5).
2. The wear prevention device for a vertical mill powder concentrator shell according to claim 1, wherein: the angle a is 30.
3. The wear prevention device for a vertical mill powder concentrator shell according to claim 1, wherein: the wear-resistant guide plate (1) is a welded plate or a wear-resistant composite plate, and the mounting plate (2) is a common steel plate.
4. The wear prevention device for a vertical mill powder concentrator shell according to claim 1, wherein: the bolt (5) is provided with spot welding points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321594132.2U CN220111295U (en) | 2023-06-21 | 2023-06-21 | Wear-proof device for shell of vertical mill powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321594132.2U CN220111295U (en) | 2023-06-21 | 2023-06-21 | Wear-proof device for shell of vertical mill powder concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220111295U true CN220111295U (en) | 2023-12-01 |
Family
ID=88892767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321594132.2U Active CN220111295U (en) | 2023-06-21 | 2023-06-21 | Wear-proof device for shell of vertical mill powder concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220111295U (en) |
-
2023
- 2023-06-21 CN CN202321594132.2U patent/CN220111295U/en active Active
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