A tungsten carbide powder grinding material screening device

Abstract

The utility model relates to a kind of tungsten carbide powder grinding material screening devices in tungsten oxide production technology field, including sieve cylinder;Sieve screen is equipped in the sieve cylinder, the sieve screen is hemispherical, increase the screening area, the sieve screen is matched with cleaning assembly, the cleaning assembly includes cleaning brush and motor connected with cleaning brush.The cleaning brush includes brush body and bristle, the brush body is annular with sieve screen matching, the outer ring surface of the brush body is covered with bristle, the bristle is in contact with sieve screen, the brush body is fixedly connected with two rotating shafts, two rotating shafts are located on the same diameter of brush body, the end of two rotating shafts away from brush body is respectively connected with the inner wall of sieve cylinder by bearing, one rotating shaft is connected with motor after penetrating sieve cylinder. The utility model whole structure is reasonable and simple, screening area is big, screening efficiency is high, can clean sieve screen, avoid block, improve screening effect.

Description

Technical Field

[0001] This utility model belongs to the field of tungsten oxide production technology, specifically relating to a sieving device for tungsten carbide powder grinding material. Background Technology

[0002] Tungsten carbide is a compound composed of tungsten and carbon. It is a black hexagonal crystal with a metallic luster and is a good conductor of electricity and heat. Tungsten carbide is chemically stable. Tungsten carbide powder is used in the production of cemented carbide materials and is an important raw material for the preparation of tungsten oxide. The preparation process requires finely grinding the tungsten carbide grinding material and then sieving it. Existing sieving devices suffer from low sieving efficiency, easy clogging of the screen, and inconvenient cleaning. Therefore, a sieving device for tungsten carbide powder grinding material is needed to solve the above-mentioned technical problems. Utility Model Content

[0003] To address the aforementioned deficiencies in the existing technology, this utility model provides a sieving device for tungsten carbide powder grinding materials, including a sieve cylinder; the sieve cylinder is equipped with a screen, which is hemispherical to increase the sieving area; the screen is equipped with a cleaning component, which includes a cleaning brush and a motor connected to the cleaning brush.

[0004] Preferably, the cleaning brush includes a brush body and bristles. The brush body is annular and matches the screen. The outer ring surface of the brush body is covered with bristles, which contact the screen. The brush body is fixedly connected to two rotating shafts located on the same diameter of the brush body. The ends of the two shafts away from the brush body are rotatably connected to the inner wall of the screen cylinder via bearings. One of the shafts passes through the screen cylinder and is connected to a motor. The annular shape of the brush body ensures that when the screen is not in use, the central axis of the brush body coincides with the central axis of the screen cylinder, preventing interference between the cleaning brush and the screen and ensuring that feeding and screening are not affected.

[0005] Preferably, the cross-section of the brush body is an equilateral triangle, and the bristles are fixed on one side of the equilateral triangle. This arrangement prevents material from accumulating on the brush body during feeding.

[0006] Preferably, the top of the screen cylinder is provided with a feed inlet, and the bottom of the screen cylinder is conical and provided with a discharge outlet equipped with a switch valve.

[0007] Preferably, the bottom of the screen is provided with a slag discharge pipe with a second switch valve to facilitate the discharge of coarse material remaining on the screen.

[0008] Preferably, the screen is a vibrating screen, which improves the screening effect.

[0009] This utility model also includes other components that enable the sieving device for tungsten carbide powder grinding material to function normally, such as the control components for valve one, valve two, motor, and vibrating screen, and the receiving cart at the discharge port, all of which are conventional technologies in the field. Furthermore, devices or components not specified in this utility model, such as valves and motors, brushes, and vibrating screens, all employ conventional technologies and equipment in the field.

[0010] Working principle: The abrasive material enters the screen cylinder and falls onto the screen mesh. The screen mesh vibrates to screen the material. Fine material is discharged from the outlet and collected by the fine material receiving cart. After screening, the slag discharge pipe is opened, and the coarse material on the screen mesh is discharged from the slag discharge pipe and collected by the coarse material receiving cart. When the screen mesh needs to be cleaned after a period of use, the motor drives the cleaning brush to rotate, and the brush bristles clean the screen mesh.

[0011] The beneficial effects of this utility model are: the overall structure is reasonable and simple, the screening area is large and the screening efficiency is high, the screen can be cleaned to avoid clogging, and the screening effect is improved. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the external structure of a tungsten carbide powder grinding material sieving device in an embodiment of this utility model;

[0014] Figure 2 for Figure 1 Top view of the middle cleaning brush;

[0015] Figure 3 for Figure 2 Sectional view at point AA.

[0016] In the diagram: 1. Screen cylinder; 2. Discharge port; 3. Screen mesh; 4. Motor; 5. Brush body; 6. Rotating shaft; 7. Brush bristles; 8. Slag discharge pipe. Detailed Implementation

[0017] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0018] Example

[0019] like Figure 1-3As shown, this utility model provides a tobacco flake sampling device, including a sieving device for tungsten carbide powder grinding material, including a sieve cylinder 1; the sieve cylinder 1 is provided with a sieve screen 3, the sieve screen 3 is hemispherical, which increases the sieving area, the sieve screen 3 is equipped with a cleaning component, the cleaning component includes a cleaning brush and a motor 4 connected to the cleaning brush.

[0020] The cleaning brush includes a brush body 5 and bristles 7. The brush body can be made of stainless steel, and the bristles can be made of wear-resistant nylon or stainless steel. The brush body 5 is annular and matches the screen 3. The outer ring surface of the brush body 5 is covered with bristles 7, which contact the screen 3. The brush body 5 is fixedly connected to two rotating shafts 6, which are located on the same diameter of the brush body 5. The ends of the two rotating shafts 6 away from the brush body 5 are rotatably connected to the inner wall of the screen cylinder 1 through bearings. One of the rotating shafts 6 passes through the screen cylinder 1 and is connected to the motor 4. The annular shape of the brush body 5 ensures that when the screen 3 is not in use, the central axis of the brush body 5 coincides with the central axis of the screen cylinder 1, preventing the cleaning brush from interfering with the screen 3 and not affecting feeding and screening.

[0021] The brush body 5 has an equilateral triangle cross-section, and the bristles 7 are fixed to one side of the equilateral triangle. This arrangement prevents material from accumulating on the brush body 5 during feeding.

[0022] The top of the screen cylinder 1 is provided with a feed inlet, and the bottom of the screen cylinder 1 is conical and is provided with a discharge outlet 2 with a switch valve.

[0023] The bottom of the screen 3 is equipped with a slag discharge pipe 8 with a second switch valve, which facilitates the discharge of coarse material remaining on the screen 3.

[0024] The screen 3 is a vibrating screen, which is a screen with a vibrator, thus improving the screening effect.

[0025] The motors, vibrating screens, etc. mentioned in the above embodiments are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structure and principle, please refer to the product manual or existing technical data, which are all existing technologies.

[0026] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sieving device for tungsten carbide powder grinding materials, comprising a sieve cylinder; characterized in that: The screen cylinder is equipped with a screen mesh, which is hemispherical. The screen mesh is equipped with a cleaning component, which includes a cleaning brush and a motor connected to the cleaning brush.

2. The sieving device for tungsten carbide powder grinding material according to claim 1, characterized in that: The cleaning brush includes a brush body and bristles. The brush body is a ring shape that matches the screen. The outer ring surface of the brush body is covered with bristles. The bristles are in contact with the screen. The brush body is fixedly connected to two rotating shafts. The two rotating shafts are located on the same diameter of the brush body. The ends of the two rotating shafts away from the brush body are rotatably connected to the inner wall of the screen cylinder through bearings. One of the rotating shafts passes through the screen cylinder and is connected to the motor.

3. The sieving device for tungsten carbide powder grinding material according to claim 2, characterized in that: The cross-section of the brush body is an equilateral triangle, and the bristles are fixed on one side of the equilateral triangle.

4. The sieving device for tungsten carbide powder grinding material according to claim 1, characterized in that: The screen cylinder has a feed inlet at the top and a cone-shaped discharge outlet with a switch valve at the bottom.

5. The sieving device for tungsten carbide powder grinding material according to claim 1, characterized in that: The bottom of the screen is equipped with a slag discharge pipe with a second switch valve.

6. The sieving device for tungsten carbide powder grinding material according to claim 1, characterized in that: The screen is a vibrating screen.

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