Sealing assembly for grinding roller door of vertical mill

Abstract

The utility model belongs to the technical field of sealing equipment, and particularly relates to a grinding roller door sealing assembly of a vertical mill. The sealing device comprises a sealing frame and a flexible connector, and the sealing frame is welded to a vertical mill shell and located between the vertical mill shell and a grinding roller shaft; the soft connector is in a leather cup shape, the inner peripheral side of the soft connector is clamped on the grinding roller shaft through a hoop, and the outer peripheral side of the soft connector is fixed on the sealing frame through a U-shaped clamp. The flexible connection is made of high-temperature-resistant, wear-resistant and shock-resistant rubber materials and is designed into a leather cup structure, the shape design of the leather cup can cope with vibration and compression generated in all directions when the vertical mill operates, and the sealing effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing equipment, and in particular relates to a sealing component for a roller door of a vertical mill. Background Art

[0002] When the vertical mill is working, the grinding roller of the vertical mill swings up and down due to the fluctuation of the material layer. Therefore, a certain space must be reserved between the rocker arm of the vertical mill and the mill housing. This reserved space is called the grinding roller door to prevent the rocker arm and the vertical mill housing from colliding during the vibration of the grinding roller and damaging the rocker arm and the housing. In order to ensure that the internal air pressure and temperature of the vertical mill remain stable and prevent the leakage of grinding slag from polluting the environment, the reserved space needs to be sealed.

[0003] The current common sealing soft connection cannot cope with the vibration and compression generated in all directions when the vertical mill is running. The sealing effect is poor and it is very easy to leak in external air, resulting in large air leakage and affecting the working efficiency of the system. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a vertical mill roller door sealing assembly which can cope with the vibration and compression generated in all directions when the vertical mill is running and has good sealing effect.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0006] Vertical mill roller door sealing assembly, including:

[0007] The sealing frame is welded to the vertical mill housing and is located between the vertical mill housing and the grinding roller shaft;

[0008] Soft connection, in the shape of a leather cup;

[0009] A clamp, used for clamping the inner peripheral side of the flexible connection onto the grinding roller shaft;

[0010] A U-shaped clamp, used to fix the outer peripheral side of the flexible connection to the sealing frame;

[0011] As a preferred technical solution, it also includes a material blocking device, which is welded to the grinding roller shaft.

[0012] As a preferred technical solution, the U-shaped clamp is of split design and can be divided into multiple arc-shaped clamps according to the sealing frame, which is convenient for installation and subsequent maintenance.

[0013] As a preferred technical solution, the outer wall of the U-shaped clamp is pressed against the sealing frame by bolts, and the inner wall of the U-shaped clamp is squeezed against the outer peripheral side of the flexible connection to form a seal.

[0014] As a preferred technical solution, the soft connection is a split structure.

[0015] As a preferred technical solution, a baffle is provided on the peripheral side of the sealing frame.

[0016] As a preferred technical solution, a slag outlet is provided at the bottom of the sealing frame.

[0017] Due to the adoption of the above technical solution, the utility model has at least the following beneficial effects:

[0018] (1) The soft connection is made of high temperature resistant, wear-resistant and shock-resistant rubber material and is designed as a "leather cup structure". The shape of the leather cup can cope with the vibration and compression generated in all directions when the vertical mill is running, and the sealing effect is good.

[0019] (2) The inner side of the flexible connection is clamped to the grinding roller shaft by a clamp, and the outer side is fixed to the sealing frame by a U-shaped clamp. The flexible connection of the "leather cup structure" can be provided with one or more joints according to the size of the grinding roller shaft. The joints are fixed by bolts to facilitate installation and later maintenance; the outer wall of the U-shaped clamp is pressed against the sealing frame by bolts, and the inner wall of the U-shaped clamp is squeezed against the outer peripheral side of the flexible connection to achieve a sealing effect, which is not easy to leak.

[0020] (3) A baffle is provided around the sealing frame and a slag outlet is provided at the bottom, which can effectively reduce the wear of the grinding slag and the soft connection and further improve the service life of the soft connection.

[0021] (4) The material blocking device is welded on the grinding roller shaft and cooperates with the sealing frame to effectively reduce the overflow of grinding slag, increase production, and prevent the leakage of grinding slag from polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0023] Figure 1 It is a schematic diagram of the installation of an embodiment of the utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the soft connection in the embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the main structure of the soft connection in the embodiment of the utility model;

[0027] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0028] Figure 6 This is a schematic diagram of the main structure of the U-shaped clamp in the embodiment of the utility model;

[0029] Figure 7 yes Figure 5 Schematic diagram of the cross-sectional structure along the BB direction;

[0030] Figure 8 This is a schematic diagram of the main structure of the sealing frame in the embodiment of the utility model;

[0031] Fig. 9 It is a side view structural schematic diagram of the sealing frame in the embodiment of the utility model;

[0032] Fig.10 This is a schematic diagram of the main structure of the material blocking device in the embodiment of the utility model;

[0033] Fig.11 It is a three-dimensional structural diagram of a split soft connection. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0035] like Figure 1 and Fig.10 As shown, the vertical mill roller door sealing assembly includes a sealing frame 1, a flexible connection 2 and a material blocking device 3. The sealing frame 1 is welded to the vertical mill shell 4 and is located between the vertical mill shell 4 and the grinding roller shaft 5. The grinding roller shaft 5 is welded with a material blocking device 8, which cooperates with the sealing frame 1 to effectively reduce the overflow of grinding slag, increase production, and prevent the leakage of grinding slag from polluting the environment.

[0036] refer to Figures 3 to 5 , the soft connection 2 is made of high temperature resistant, wear-resistant and shock-resistant rubber material, and is designed as a "leather cup structure". The shape of the leather cup can cope with the vibration and compression generated in all directions when the vertical mill is running, thereby improving the sealing effect; reference Figure 4 The soft connection 2 of the "leather cup structure" is provided with a joint interface 21, which can be fixed by bolts, which is convenient for installation and later maintenance. Of course, the number of joint interfaces 21 can be set to two or more according to the size of the grinding roller shaft, that is, the soft connection of the "leather cup structure" adopts a split structure (refer to Fig.11 ), which should all fall within the protection scope of the present utility model.

[0037] refer to Figure 2 The inner circumference of the flexible connection 2 is clamped on the grinding roller shaft 5 through a clamp 6, and the outer circumference of the flexible connection 2 is fixed on the sealing frame 1 through a U-shaped clamp 7; Figure 6 and Figure 7 The U-shaped clamp 7 preferably adopts a split design and can be divided into multiple arc-shaped clamps according to the sealing frame, which is convenient for installation and later maintenance. The outer wall 71 of the U-shaped clamp 7 is pressed against the sealing frame 1 by bolts 72, and the inner wall 73 of the U-shaped clamp 7 is squeezed against the outer peripheral side of the flexible connection 2 to achieve a sealing effect.

[0038] refer to Figure 8 and Fig. 9 The sealing frame 1 is provided with a baffle 9 on the peripheral side and a slag outlet 10 on the bottom, which can effectively reduce the wear of the soft connection by the abrasive slag and further improve the service life of the soft connection.

[0039] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, it cannot be understood as limiting the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. Vertical mill roller door sealing assembly, characterized in that: include: The sealing frame is welded to the vertical mill housing and is located between the vertical mill housing and the grinding roller shaft; Soft connection, in the shape of a leather cup; A clamp, used for clamping the inner peripheral side of the flexible connection onto the grinding roller shaft; The U-shaped clamp is used to fix the outer peripheral side of the flexible connection to the sealing frame.

2. The vertical mill roller door sealing assembly according to claim 1, characterized in that: It also comprises a material blocking device, which is welded on the grinding roller shaft.

3. The vertical mill roller door sealing assembly according to claim 1, characterized in that: The U-shaped clip is of split design.

4. The vertical mill roller door sealing assembly according to claim 1, characterized in that: The outer wall of the U-shaped clip is pressed against the sealing frame by bolts, and the inner wall of the U-shaped clip is squeezed against the outer peripheral side of the flexible connection to form a seal.

5. The vertical mill roller door sealing assembly according to claim 1, characterized in that: The soft connection is a split structure.

6. The vertical mill roller door sealing assembly according to claim 1, characterized in that: A baffle is provided on the peripheral side of the sealing frame.

7. The vertical mill roller door sealing assembly according to any one of claims 1 to 6, characterized in that: A slag outlet is provided at the bottom of the sealing frame.

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