Double-layer sealing device for grinding roller

Abstract

The double-layer sealing device for the grinding roller is applied to the field of grinding door sealing and comprises a vertical mill shell, a through groove is formed in the vertical mill shell, a driver is arranged on one side of the vertical mill shell in a penetrating mode and is in a round shape, an inner cylinder is welded to one side of the driver, and an outer cylinder is welded to the other side of the inner cylinder. And a first sealing layer is installed between the surface of the inner cylinder and the through groove, an outer cylinder is arranged on one side of the vertical mill shell, a fixing plate is welded to the surface of the outer cylinder, and a second sealing layer is installed between the interior of the outer cylinder and the driver. According to the vertical mill, the sealing effect can be good, jumping materials in the machine shell can be blocked, heat loss in the machine shell is greatly reduced, external cold air can be prevented from entering the machine shell, the energy consumption and the cost of the vertical mill are reduced, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of grinding door seals, in particular to a double-layer sealing device for a grinding roller. Background Art

[0002] Currently, a Chinese utility model, published under the patent number CN214305287U, discloses a sealing device for the roller door of a vertical mill. While this sealing device ensures the multi-dimensional movement of the roller shaft through a wave-like flexible connection, it also presents other problems during use. These include poor sealing performance, an inability to block internal material, the loosening of the fixing clamps at both ends of the wave hose after prolonged vibration, and air leakage. Furthermore, the internal heat retention is poor, allowing heat to escape externally, resulting in low practicality. To address these issues, we propose a double-layer sealing device for the roller. Utility Model Content

[0003] The utility model aims to provide a double-layer sealing device for a grinding roller, which solves the problem that the existing sealing device has a poor sealing effect and cannot block the internal materials.

[0004] The above technical objectives of the present utility model are achieved through the following technical solutions: a double-layer sealing device for a grinding roller, comprising a vertical mill housing, a through groove being provided inside the vertical mill housing, a driver being provided through one side of the vertical mill housing, the driver being circular in shape, an inner cylinder being welded to one side of the driver, a first sealing layer being installed between the surface of the inner cylinder and the through groove, an outer cylinder being provided on one side of the vertical mill housing, a fixing plate being welded to the surface of the outer cylinder, and a second sealing layer being installed between the inside of the outer cylinder and the driver.

[0005] The above technical solution can achieve a good sealing effect. It can not only block the jumping materials in the casing, but also greatly reduce the heat loss inside the casing, and prevent the outside cold air from entering, thereby reducing the energy consumption and cost of the vertical mill and having high practicality.

[0006] The present invention is further configured as follows: a first reinforcement plate and a second reinforcement plate are respectively placed inside the second sealing layer, and through holes are opened inside the first reinforcement plate and the second reinforcement plate.

[0007] By adopting the above technical solution, the first reinforcement plate and the second reinforcement plate are provided, so as to improve the sealing effect between the second sealing layer and the outer cylinder and the driver, and avoid deformation and warping at the edges.

[0008] The utility model is further configured as follows: a groove is provided on one side of the vertical mill housing, and a sealing ring is bonded inside the groove by means of sealing glue.

[0009] By adopting the above technical solution and arranging the groove and the sealing ring, the sealing effect between the fixing plate and the vertical mill housing can be improved after the fixing plate is fixed.

[0010] The utility model is further configured as follows: a mounting hole is opened inside the fixing plate.

[0011] By adopting the above technical solution, the setting of the mounting holes makes it easy for personnel to fix the fixing plate with screws, thus reducing the trouble of temporary drilling of holes.

[0012] The present invention is further configured such that: the first sealing layer is made of rubber material.

[0013] By adopting the above technical solution, the first sealing layer has the characteristics of high elasticity, wear resistance, oil resistance, acid and alkali resistance and excellent insulation.

[0014] The utility model is further configured as follows: the second sealing layer is made of silicone cloth.

[0015] By adopting the above technical solution, the second sealing layer has excellent high temperature resistance, corrosion resistance, and aging resistance, and has excellent flexibility and ductility.

[0016] The utility model is further configured as follows: the surfaces of the inner cylinder, the outer cylinder and the fixing plate are all coated with anti-corrosion paint.

[0017] By adopting the above technical solution and providing the anti-corrosion coating, the anti-corrosion effect of the surfaces of the inner cylinder, the outer cylinder and the fixed plate can be improved.

[0018] In summary, the present invention has the following beneficial effects:

[0019] The utility model fixes the inside of the first sealing layer to the inner cylinder with screws first, then sends the driver inward from the through groove into the vertical mill casing, and when the driver is pushed to an appropriate distance, fixes the outside of the first sealing layer to the through groove with screws. After the first sealing layer is installed, the fixing plate is fixed to the vertical mill casing with screws, and then the second sealing layer is sent in until the surface of the driver fits with the inner wall of the outer cylinder, and finally the first reinforcement plate and the second reinforcement plate are respectively placed in the second sealing layer and tightened with screws. The utility model can achieve a good sealing effect, not only can it block the jumping material in the casing, but also can greatly reduce the heat loss inside the casing, and can also prevent the outside cold wind from entering inward, thereby reducing the energy consumption and cost of the vertical mill and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0021] Figure 2 This is a front sectional view of the structure of the utility model;

[0022] Figure 3 It is a partial schematic diagram of the right side of the structure of the utility model;

[0023] Figure 4 This utility model Figure 2 A magnified view of the structure in the middle.

[0024] Figure numerals: 1, vertical mill housing; 2, through groove; 3, driver; 4, inner cylinder; 5, first sealing layer; 6, outer cylinder; 7, second sealing layer; 8, fixing plate; 9, first reinforcement plate; 10, second reinforcement plate; 11, groove; 12, sealing ring; 13, mounting hole. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A double-layer sealing device for a grinding roller includes a vertical mill housing 1, a through groove 2 is opened inside the vertical mill housing 1, a driver 3 is provided through one side of the vertical mill housing 1, and the driver 3 is circular in shape. An inner cylinder 4 is welded to one side of the driver 3, and a first sealing layer 5 is installed between the surface of the inner cylinder 4 and the through groove 2. An outer cylinder 6 is provided on one side of the vertical mill housing 1, and a fixing plate 8 is welded to the surface of the outer cylinder 6. A second sealing layer 7 is installed between the inside of the outer cylinder 6 and the driver 3. By firstly 5 is fixed to the inner cylinder 4 with screws, and then the driver 3 is sent inward from the through groove 2 into the vertical mill housing 1. When the driver 3 is pushed to the appropriate distance, the outer part of the first sealing layer 5 is fixed to the through groove 2 with screws. After the first sealing layer 5 is installed, the fixing plate 8 is fixed to the vertical mill housing 1 with screws. Then the second sealing layer 7 is sent to the surface of the driver 3 and fits it with the inner wall of the outer cylinder 6. Finally, the first reinforcement plate 9 and the second reinforcement plate 10 are respectively placed in the second sealing layer 7 and tightened with screws.

[0027] refer to Figure 1 and Figure 4 The first reinforcing plate 9 and the second reinforcing plate 10 are respectively placed inside the second sealing layer 7. Through holes are opened inside the first reinforcing plate 9 and the second reinforcing plate 10. Through the arrangement of the first reinforcing plate 9 and the second reinforcing plate 10, the sealing effect between the second sealing layer 7 and the outer cylinder 6 and the driver 3 can be improved, avoiding deformation and warping at the edges.

[0028] refer to Figure 3A groove 11 is provided on one side of the vertical mill housing 1, and a sealing ring 12 is bonded to the inside of the groove 11 by sealant. The arrangement of the groove 11 and the sealing ring 12 can improve the sealing effect between the fixing plate 8 and the vertical mill housing 1 after being fixed.

[0029] refer to Figure 1 and Figure 3 A mounting hole 13 is provided inside the fixing plate 8. The setting of the mounting hole 13 makes it easy for personnel to fix the fixing plate 8 with screws, reducing the trouble of temporary drilling by personnel.

[0030] refer to Figure 2 The first sealing layer 5 is made of rubber material, and has the characteristics of high elasticity, wear resistance, oil resistance, acid and alkali resistance and excellent insulation.

[0031] refer to Figure 1 and Figure 4 The second sealing layer 7 is made of silicone cloth. The second sealing layer 7 has excellent high temperature resistance, corrosion resistance, and aging resistance, and has excellent flexibility and ductility.

[0032] refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The surfaces of the inner cylinder 4, the outer cylinder 6 and the fixed plate 8 are all coated with anti-corrosion coating. By setting the anti-corrosion coating, the anti-corrosion effect of the surfaces of the inner cylinder 4, the outer cylinder 6 and the fixed plate 8 can be improved.

[0033] Brief description of the usage process: First, fix the inside of the first sealing layer 5 to the inner cylinder 4 with screws, then send the driver 3 inward from the through groove 2 into the vertical mill housing 1. When the driver 3 is pushed to the appropriate distance, use screws to fix the outside of the first sealing layer 5 to the through groove 2. After the first sealing layer 5 is installed, use screws to fix the fixing plate 8 to the vertical mill housing 1. Then, send the second sealing layer 7 until the surface of the driver 3 fits with the inner wall of the outer cylinder 6. Finally, place the first reinforcement plate 9 and the second reinforcement plate 10 into the second sealing layer 7 respectively and tighten them with screws.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A double-layer sealing device for a grinding roller, comprising a vertical mill housing (1), characterized in that: A through groove (2) is provided inside the vertical mill housing (1), a driver (3) is provided through one side of the vertical mill housing (1), the driver (3) is circular in shape, an inner cylinder (4) is welded to one side of the driver (3), a first sealing layer (5) is installed between the surface of the inner cylinder (4) and the through groove (2), an outer cylinder (6) is provided on one side of the vertical mill housing (1), a fixing plate (8) is welded to the surface of the outer cylinder (6), and a second sealing layer (7) is installed between the inside of the outer cylinder (6) and the driver (3).

2. A double-layer sealing device for a grinding roller according to claim 1, characterized in that: A first reinforcing plate (9) and a second reinforcing plate (10) are respectively placed inside the second sealing layer (7), and through holes are provided inside the first reinforcing plate (9) and the second reinforcing plate (10).

3. A double-layer sealing device for a grinding roller according to claim 1, characterized in that: A groove (11) is provided on one side of the vertical mill housing (1), and a sealing ring (12) is bonded inside the groove (11) by means of sealing glue.

4. A double-layer sealing device for a grinding roller according to claim 1, characterized in that: A mounting hole (13) is provided inside the fixing plate (8).

5. A double-layer sealing device for a grinding roller according to claim 1, characterized in that: The first sealing layer (5) is made of rubber material.

6. A double-layer sealing device for a grinding roller according to claim 1, characterized in that: The second sealing layer (7) is made of silicone cloth.

7. A double-layer sealing device for a grinding roller according to claim 1, characterized in that: The surfaces of the inner cylinder (4), the outer cylinder (6) and the fixing plate (8) are all coated with anti-corrosion paint.

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