Stirrer supporting device

Abstract

The utility model relates to a stirrer supporting device which is characterized by comprising a supporting seat which is arranged in an equipment shell and is provided with a bottom plate and an annular limiting wall extending upwards from the upper surface of the bottom plate; a supporting cavity is defined by the bottom plate and the annular limiting wall, and the supporting cavity is used for containing a stirring shaft of a stirrer; and the vibration reduction part is arranged on the inner wall of the supporting cavity. The stirring shaft of the stirrer is located in the supporting cavity, the vibration reduction piece arranged on the supporting cavity can absorb radial force and axial force generated in the rotating process of the stirring shaft, damage of the stirring shaft to an anti-corrosion coating on the supporting base and in the equipment shell is avoided, the service life of the equipment is prolonged, and the supporting base is simple in structure and easy to machine, manufacture and spray.

Description

Technical Field

[0001] The utility model relates to the technical field of stirrers, in particular to a stirrer supporting device. Background Art

[0002] At present, in petrochemical, coal chemical, power plant and other devices, many materials inside the equipment are highly corrosive. In order to extend the service life of the shell and the shell internal parts, it can be achieved by applying anti-corrosion coatings inside the shell and on the shell internal parts. Different anti-corrosion coatings have different bonding strengths with the substrate, different construction methods, and different coating thicknesses. Commonly used anti-corrosion coatings include rubber, polyolefin (PO), polyurea (PU), glass flakes and nanomaterials.

[0003] For example, the slurry crystallization tank, slurry circulation tank, slurry buffer tank, etc. in the flue gas desulfurization device are all coated with anti-corrosion coatings. However, with the increase in flue gas treatment volume, the required supporting equipment is large-scale, and agitators need to be installed on these equipments with anti-corrosion coatings, and the agitator shaft of the agitator is relatively long, so agitator supports are also required.

[0004] However, as the agitator rotates and shakes, the internal anti-corrosion coating near the agitator support is easily torn, and the material penetrates into the anti-corrosion coating and corrodes the equipment shell, causing the equipment to corrode and leak. The corrosion perforation of the tank wall is easy to find and easy to inspect and repair, while the corrosion perforation of the tank bottom is not easy to find, and the material penetrates into the ground and pollutes the soil and groundwater. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a stirrer supporting device with an anti-corrosion coating that is not easily torn, in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: the stirrer support device is characterized by comprising

[0007] A support seat is arranged in the device housing, the support seat has a bottom plate and an annular limiting wall extending upward from the upper surface of the bottom plate; the bottom plate and the annular limiting wall enclose a support chamber, and the support chamber is used to accommodate the stirring shaft of the stirrer; and

[0008] A vibration damping member is arranged on an inner wall of the supporting chamber.

[0009] In order to reduce the mutual influence between the radial force and the axial force generated by the stirring shaft, the vibration damping member includes

[0010] A radial vibration-damping cylinder is coaxially arranged in the annular limiting wall and is in contact with the inner circumferential wall of the annular limiting wall;

[0011] The axial vibration damping block is located on the bottom wall of the support chamber. Since the vibration damping component is composed of two parts, the radial vibration damping cylinder and the axial vibration damping block, compared with the integrally formed vibration damping component, when the radial force generated by the stirring shaft causes the radial vibration damping cylinder to undergo radial deformation, the state of the axial vibration damping block is less affected; the axial force generated by the stirring shaft can also reduce the impact on the radial vibration damping cylinder.

[0012] Furthermore, the axial vibration damping block is located in the radial vibration damping cylinder, the lower surface of the axial vibration damping block is in contact with the bottom plate, and the outer circumferential wall of the axial vibration damping block is in contact with the inner circumferential wall of the radial vibration damping cylinder.

[0013] Furthermore, the radial vibration damping cylinder is an elastic material cylinder, and the axial vibration damping block is an elastic material block or a spring bracket.

[0014] Furthermore, the elastic material tube is a rubber tube, and the elastic material block is a rubber block.

[0015] Furthermore, it also includes a stirring shaft support plate, which is located on the axial vibration damping block and is used to support the stirring shaft of the stirrer.

[0016] Furthermore, the periphery of the stirring shaft support plate is in contact with the inner circumferential wall of the radial vibration damping cylinder. In other words, the area of ​​the support plate is equal to the area of ​​the upper surface of the axial vibration damping block.

[0017] Furthermore, the stirring shaft support plate is an elastic material plate or a stainless steel plate.

[0018] Furthermore, the bottom surface of the bottom plate is connected to the device housing, the surfaces of the annular limiting wall and the bottom plate have an anti-corrosion coating, the radial vibration damping cylinder is in contact with the anti-corrosion coating on the inner circumferential wall of the annular limiting wall, and the axial vibration damping block is in contact with the anti-corrosion coating on the bottom plate. The support seat and the device housing are usually made of the same metal material. When the support seat is installed in the device housing, the support seat and the device housing are sprayed with anti-corrosion paint, thereby forming an anti-corrosion coating on the surface of the annular limiting wall and the bottom plate.

[0019] Compared with the prior art, the advantages of the utility model are: the stirring shaft of the agitator is located in the supporting chamber, and the vibration damping member arranged on the supporting chamber can absorb the radial force and axial force generated during the rotation of the stirring shaft, thereby avoiding the damage of the stirring shaft to the anti-corrosion coating on the supporting seat and inside the equipment casing, thereby extending the service life of the equipment, and the supporting seat has a simple structure and is easy to process, manufacture and spray. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a cross-sectional view of the agitator support device in the embodiment of the utility model when it supports the agitator shaft. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 As shown, a preferred embodiment of an agitator support device of the utility model is shown, and the agitator support device includes a support seat, a radial vibration damping cylinder 21, an axial vibration damping block 22 and a support plate 3.

[0023] The support seat has a bottom plate 11 and an annular limiting wall 12 extending upward from the upper surface of the bottom plate 11; the bottom plate 11 and the annular limiting wall 12 enclose a support chamber 1a, and the support chamber 1a is used to accommodate the stirring shaft 100 of the stirrer. The support seat is arranged in the equipment shell, and its material is the same as that of the equipment shell. After the support seat and the bottom wall of the equipment shell are double-sided angle-ring welded, the weld is polished to a smooth transition of R ≥ 5㎜. After non-destructive testing and water pressure testing, the anti-corrosion coating is sprayed on the entire equipment. All metal surfaces in contact with the medium must be sprayed with anti-corrosion coating to form an anti-corrosion coating 4. The various requirements of the anti-corrosion coating 4 meet the requirements of relevant standards and regulations.

[0024] The radial damping cylinder 21 is coaxially arranged in the annular limiting wall 12 and fits with the inner circumferential wall of the annular limiting wall 12; the axial damping block 22 is located in the radial damping cylinder 21, the lower surface of the axial damping block 22 fits with the bottom plate 11, and the outer circumferential wall of the axial damping block 22 fits with the inner circumferential wall of the radial damping cylinder 21. In other words, the outer circumferential wall of the radial damping cylinder 21 fits with the anti-corrosion coating 4 on the inner circumferential wall of the annular limiting wall 12, the lower surface of the radial damping cylinder 21 fits with the anti-corrosion coating 4 on the bottom plate 11, and the lower surface of the axial damping block 22 fits with the anti-corrosion coating 4 on the bottom plate 11.

[0025] The support plate 3 is located on the axial vibration-damping block 22 , and its periphery is in contact with the inner circumferential wall of the radial vibration-damping cylinder 21 . The support plate 3 is used to support the stirring shaft 100 of the stirrer.

[0026] The radial damping cylinder 21 is an elastic material cylinder, the axial damping block 22 is an elastic material block or a spring bracket, and the support plate 3 is an elastic material plate or a stainless steel plate. The elastic material mentioned above can be a natural rubber product or an artificial rubber product or a viscoelastic material of a polymer compound, etc. Among them, the thickness of the radial damping cylinder 2 is determined according to the maximum radial deformation and the damping effect generated by the stirring shaft 100, and the thickness of the axial damping block 3 is determined according to the axial force and the damping effect generated by the stirring shaft 100.

[0027] The agitator support device is not only suitable for bottom wall support in the equipment housing, but also for side wall support in the equipment housing. The working principle of the agitator support device is as follows: the radial force generated by the agitator is absorbed by the radial vibration damping cylinder 21, and the axial force generated by the agitator is absorbed by the axial vibration damping block 22, thereby reducing the damage to the annular limiting wall 12 and the anti-corrosion coating 4 on the bottom plate 11, so that the equipment can operate for a long period of time.

Claims

1. A stirrer support device, characterized in that: include A support seat is arranged in a device housing, the support seat comprising a bottom plate (11) and an annular limiting wall (12) extending upward from the upper surface of the bottom plate (11); the bottom plate (11) and the annular limiting wall (12) enclose a support chamber (1a), and the support chamber (1a) is used to accommodate a stirring shaft (100) of the stirrer; and A vibration damping member is arranged on the inner wall of the supporting chamber (1a).

2. The stirrer support device according to claim 1, characterized in that: The vibration damping member comprises A radial vibration-damping cylinder (21) is coaxially arranged in the annular limiting wall (12) and is in contact with the inner circumferential wall of the annular limiting wall (12); The axial vibration damping block (22) is located on the bottom wall of the supporting chamber (1a).

3. The stirrer support device according to claim 2, characterized in that: The axial vibration damping block (22) is located in the radial vibration damping cylinder (21), the lower surface of the axial vibration damping block (22) is in contact with the bottom plate (11), and the outer peripheral wall of the axial vibration damping block (22) is in contact with the inner peripheral wall of the radial vibration damping cylinder (21).

4. The stirrer support device according to claim 2 or 3, characterized in that: The radial vibration damping cylinder (21) is an elastic material cylinder, and the axial vibration damping block (22) is an elastic material block or a spring bracket.

5. The stirrer support device according to claim 4, characterized in that: The elastic material tube is a rubber tube, and the elastic material block is a rubber block.

6. The stirrer support device according to claim 2 or 3, characterized in that: It also comprises a support plate (3), wherein the support plate (3) is located on the axial vibration damping block (22) and is used to support the stirring shaft (100) of the stirrer.

7. The stirrer support device according to claim 6, characterized in that: The peripheral edge of the support plate (3) is in contact with the inner peripheral wall of the radial vibration damping cylinder (21).

8. The stirrer support device according to claim 6, characterized in that: The support plate (3) is an elastic material plate or a stainless steel plate.

9. The stirrer support device according to claim 2 or 3, characterized in that: The bottom surface of the base plate (11) is connected to the device housing, the surfaces of the annular limiting wall (12) and the base plate (11) have an anti-corrosion coating (4), the radial vibration damping cylinder (21) is in contact with the anti-corrosion coating (4) on the inner circumferential wall of the annular limiting wall (12), and the axial vibration damping block (22) is in contact with the anti-corrosion coating (4) on the base plate (11).

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