Screening device for aluminum oxide ceramic granulation processing

Abstract

The utility model discloses a screening device for aluminum oxide ceramic granulation processing, which comprises a shell, three groups of screen mesh components are arranged in the shell, each screen mesh component consists of an inner disc, a fixing ring and a screen mesh, the inner disc is arranged in the center of the screen mesh, the fixing ring wraps and is fixed on the outer wall of the screen mesh, and the screen mesh is arranged on the outer wall of the inner disc. A driving box is fixedly installed on the upper end face of the shell, a driving mechanism is arranged at the lower end in the driving box, a cylindrical limiting rod at the bottom of the driving mechanism is slidably connected with a top cover of the shell, a motor is arranged in the driving mechanism, and a rotating shaft is installed on an output shaft of the motor through a coupler. The rotating shaft penetrates through the eccentric position of the inner disc and is fixed to the inner disc, a reciprocating lifting device for vibrating the screen assembly is arranged above the driving mechanism, and the problem that the screening device cannot classify particles of different specifications after screening is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of alumina ceramic granulation processing, in particular to a screening device used for alumina ceramic granulation processing. Background Art

[0002] Alumina ceramic granulation refers to the process of converting alumina ceramic powder into granules through a specific process. This process is typically used to meet the requirements of dry pressing or isostatic pressing in the alumina ceramic production process. During the granulation process, the ceramic slurry undergoes processes such as spray drying to form a granular powder. The screening device used in the alumina ceramic granulation process is primarily used to screen the granulated particles to remove particles that do not meet specifications or quality requirements, ensuring the uniformity and consistency of the final product.

[0003] For example, the Chinese patent application number CN220763177U, "A Plastic Granulation Screening Device," includes a base plate, a speed-regulating motor, a screening box, a feed port, and a universal wheel. The speed-regulating motor is fixed to the top of the base plate, the screening box is located above the speed-regulating motor, the feed port is located at the top of the screening box, and the universal wheel is rotatably connected to the bottom of the base plate. Furthermore, a screening assembly is provided on the main assembly, including a screening element, a position limiting element, a driving element, and an adjusting element. The setting of the screening element facilitates the screening and classification of plastic granules of different sizes. The setting of the position limiting element facilitates the disassembly and assembly of the screening element, thereby facilitating its replacement. The setting of the driving element is used to drive the screening box to shake.

[0004] Although the above-mentioned existing technology can be used for screening of alumina ceramic granulation processing, the screening flexibility is poor and it is impossible to classify particles of different specifications after screening, so it does not meet the existing needs. In this regard, we propose a screening device for alumina ceramic granulation processing. Utility Model Content

[0005] The purpose of the utility model is to provide a screening device for alumina ceramic granulation processing, so as to solve the problem that the screening device proposed in the above background technology cannot classify particles of different specifications after screening.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for alumina ceramic granulation processing, comprising an outer shell, three groups of screen assemblies are arranged inside the outer shell, and the screen assembly consists of an inner disk, a fixed ring and a screen, the inner disk is arranged at the center of the screen, and the fixed ring wraps and is fixed to the outer wall of the screen, a drive box is fixedly installed on the upper end face of the outer shell, a drive mechanism is arranged at the lower end of the drive box, and a cylindrical limit rod at the bottom of the drive mechanism is slidably connected to the top cover of the outer shell, a motor is provided inside the drive mechanism, and the output shaft of the motor is installed with a rotating shaft through a coupling, and the rotating shaft passes through the eccentric position of the inner disk and is fixed thereto, and a reciprocating lifting device that causes vibration to the screen assembly is provided above the drive mechanism.

[0007] Preferably, the reciprocating lifting device includes a turntable, which is connected to the drive box through a rotating shaft. A connecting arm is installed at an eccentric position at the front end of the turntable. A lifting rod is fixedly installed at the center position of the upper end surface of the driving mechanism. The lifting rod is slidably connected to the slide groove in the center of the inner cavity of the drive box, and the upper end of the lifting rod is connected to the other end of the connecting arm through a rotating shaft.

[0008] Preferably, a guide groove is provided at the position of the shell corresponding to the screen assembly, four annularly distributed fixing columns are provided inside the guide groove, and three collection boxes are provided outside the shell. The collection boxes are welded and fixed to the shell, and the openings of the collection boxes are connected to the guide groove.

[0009] Preferably, the surface of the screen is provided with an inclined surface and a blocking surface, and the inclined surface and the blocking surface are spaced apart.

[0010] Preferably, the mesh size of the screen increases gradually from top to bottom.

[0011] Preferably, a discharge port is installed at the bottom of the shell, and a cover plate threadedly connected to the discharge port is installed at the bottom of the discharge port.

[0012] Preferably, support frames are welded and fixed at the four corners of the bottom of the shell.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In this utility model, a vibrating mechanism is provided for the screen assembly. By starting the driving motor, its output shaft drives the turntable to rotate. Since one end of the connecting arm is installed at an eccentric position on one side of the turntable, and in cooperation with the guiding effect of the inner cavity of the driving box on the lifting rod, as the turntable rotates, the connecting arm is used to drive the lifting rod to perform vertical reciprocating displacement. Affected by the diameter of the turntable and the eccentric distance at one end of the connecting arm, as the driving motor rotates at high speed, the screen assembly is driven by the driving mechanism and the rotating shaft to form high-frequency vibration. Under the vibration effect, the material is continuously thrown up, so that the material smaller than the mesh holes can quickly pass through, improving the overall screening efficiency.

[0015] 2. In this utility model, an eccentric rotation mechanism of the screen assembly is provided. The screen assembly composed of an inner disk, a screen and a fixing ring, the rotating shaft is fixed at an eccentric position of the inner disk. By starting the motor inside the driving mechanism, its output shaft drives the rotating shaft to rotate, and at the same time drives the screen assembly to rotate. The centrifugal force generated by the eccentric rotation comes from the eccentricity set on the rotating body. For this eccentric rotation, the magnitude of the centrifugal force is affected by the mass, rotational speed and eccentricity of the object, so that an outward force is generated on the screen assembly during movement due to the rotational speed and eccentric distance, which is different from the centrifugal force generated by self-rotation. In cooperation with the high-frequency vibration of the screen assembly itself, the material blocked above the screen assembly is gradually moved towards the guiding groove until it enters the collection box, forming the collection effect of materials with different particle sizes.

[0016] 3. The surface of the screen assembly of this utility model is provided with an inclined surface and a blocking surface arranged outside the inclined surface. The blocking surface is of a vertical structure. As the screen assembly vibrates continuously, small-particle materials can continuously pass through the screen, while large-particle materials are blocked on one side of the blocking surface. When the large-particle materials are thrown up by the vibration of the screen, accompanied by the centrifugal force generated by the eccentric movement, the materials can be slowly moved towards the guiding groove direction. With the cooperation of this inclined surface and the blocking surface, it can prevent the materials from being directly thrown to the outside by the centrifugal force, improving the quality of vibrating screen material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the internal structure of this utility model;

[0018] Figure 2 is a three-dimensional view of the outer shell of this utility model;

[0019] Figure 3 is a top view of the internal structure of the outer shell of this utility model;

[0020] Figure 4 is of this utility model Figure 1 partial enlarged view of area A in

[0021] In the figure: 1. Outer shell; 2. Driving box; 3. Rotating shaft; 4. Screen assembly; 5. Guide groove; 6. Collection box; 7. Discharge port; 8. Support frame; 9. Driving mechanism; 10. Lifting rod; 11. Turntable; 12. Connecting arm; 13. Driving motor; 14. Fixed column; 15. Inner disk; 16. Fixed ring; 17. Inclined surface; 18. Blocking surface; 19. Screen. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present invention: a screening device for alumina ceramic granulation processing, including an outer shell 1. There are three screen assemblies 4 inside the outer shell 1. The screen assembly 4 is composed of an inner disk 15, a fixed ring 16 and a screen 19. The inner disk 15 is arranged at the central position of the screen 19, and the fixed ring 16 wraps and fixes the outer wall of the screen 19. A driving box 2 is fixedly installed on the upper end surface of the outer shell 1. A driving mechanism 9 is arranged at the lower end inside the driving box 2, and the cylindrical limiting rod at the bottom of the driving mechanism 9 is slidably connected to the top cover of the outer shell 1. There is a motor inside the driving mechanism 9, and the output shaft of the motor is installed with a rotating shaft 3 through a coupling, and the rotating shaft 3 passes through the eccentric position of the inner disk 15 and is fixed to it. Above the driving mechanism 9, there is a reciprocating lifting device that forms vibration for the screen assembly 4.

[0024] By turning on the motor inside the driving mechanism 9, its output shaft drives the rotating shaft 3 to rotate, and at the same time drives the screen assembly 4 to rotate. The centrifugal force generated by the eccentric rotation comes from the eccentricity set on the rotating body. For this eccentric rotation, the magnitude of the centrifugal force is affected by the mass, rotation speed and eccentricity of the object, so that the screen assembly 4 generates an outward force during movement due to the rotation speed and eccentricity distance, which is different from the centrifugal force generated by self-rotation. Cooperating with the high-frequency vibration of the screen assembly 4 itself, the materials blocked above the screen assembly 4 are gradually moved towards the guide groove 5 until they enter the collection box 6, forming the collection effect of materials with different particle sizes.

[0025] Please refer to Figure 1, the reciprocating lifting device includes a turntable 11, the turntable 11 is connected to the drive box 2 through a rotating shaft, a connecting arm 12 is installed at an eccentric position at the front end of the turntable 11, a lifting rod 10 is fixedly installed at the center position of the upper end surface of the drive mechanism 9, the lifting rod 10 is slidably connected to the chute at the center of the inner cavity of the drive box 2, and the upper end of the lifting rod 10 is connected to the other end of the connecting arm 12 through a rotating shaft. By starting the drive motor 13, its output shaft drives the turntable 11 to rotate. Since one end of the connecting arm 12 is installed at an eccentric position on one side of the turntable 11, and in cooperation with the guiding effect of the inner cavity of the drive box 2 on the lifting rod 10, as the turntable 11 rotates, the connecting arm 12 is used to drive the lifting rod 10 to perform vertical reciprocating displacement. Affected by the diameter of the turntable 11 and the eccentric distance of one end of the connecting arm 12, as the drive motor 13 rotates at a high speed, the screen assembly 4 is driven to form high-frequency vibration through the drive mechanism 9 and the rotating shaft 3. Under the vibration effect, the materials are continuously thrown up, so that the materials smaller than the mesh holes can quickly pass through.

[0026] Please refer to Figure 2 , Figure 3 and Figure 4 , a guiding groove 5 is provided at the position of the outer shell 1 corresponding to the screen assembly 4. Four annularly distributed fixing columns 14 are provided inside the guiding groove 5. Three collecting boxes 6 are provided outside the outer shell 1. The collecting boxes 6 are fixedly welded to the outer shell 1, and the openings of the collecting boxes 6 are communicated with the guiding groove 5. The fixing columns 14 are used to support the upper and lower parts of the guiding groove 5. The materials thrown out under the centrifugal force can enter the collecting boxes 6 through the guiding groove 5.

[0027] Please refer to Figure 4 , inclined surfaces 17 and blocking surfaces 18 are respectively provided on the surface of the screen 19, and the inclined surfaces 17 and the blocking surfaces 18 are distributed at intervals. As the screen assembly 4 vibrates continuously, small particle materials can continuously pass through the screen 19, while large particle materials are blocked on one side of the blocking surface 18. When the large particle materials are thrown up by the vibration of the screen 19, accompanied by the centrifugal force generated by the eccentric motion, the materials can be slowly moved towards the direction of the guiding groove 5. With the cooperation of the inclined surface 17 and the blocking surface 18, it can prevent the materials from being directly thrown to the outside by the centrifugal force.

[0028] Furthermore, the mesh number of the screen 19 gradually increases from top to bottom.

[0029] Please refer to Figure 1 , a discharge port 7 is installed at the bottom of the outer shell 1, and a cover plate threadedly connected thereto is installed at the bottom of the discharge port 7.

[0030] Please refer to Figure 1 , support frames 8 are fixedly welded at the four corners of the bottom of the outer shell 1.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A screening device for alumina ceramic granulation processing, comprising a housing (1), characterized in that: Three groups of screen assemblies (4) are provided inside the shell (1), and the screen assembly (4) consists of an inner disk (15), a fixing ring (16) and a screen (19). The inner disk (15) is arranged at the center of the screen (19), and the fixing ring (16) is wrapped around and fixed on the outer wall of the screen (19). A drive box (2) is fixedly installed on the upper end surface of the shell (1), and a drive mechanism (9) is provided at the lower end of the drive box (2). The cylindrical limiting rod at the bottom of the drive mechanism (9) is slidably connected to the top cover of the shell (1). A motor is provided inside the drive mechanism (9), and the output shaft of the motor is installed with a rotating shaft (3) through a coupling. The rotating shaft (3) passes through the eccentric position of the inner disk (15) and is fixed thereto. A reciprocating lifting device for vibrating the screen assembly (4) is provided above the drive mechanism (9).

2. A screening device for alumina ceramic granulation processing according to claim 1, characterized in that: The reciprocating lifting device includes a turntable (11), which is connected to a drive box (2) via a rotating shaft. A connecting arm (12) is installed at an eccentric position at the front end of the turntable (11). A lifting rod (10) is fixedly installed at the center position of the upper end surface of the driving mechanism (9). The lifting rod (10) is slidably connected to a sliding groove at the center of the inner cavity of the drive box (2), and the upper end of the lifting rod (10) is connected to the other end of the connecting arm (12) via a rotating shaft.

3. The screening device for alumina ceramic granulation processing according to claim 1, characterized in that: The housing (1) is provided with a guide groove (5) at a position corresponding to the screen assembly (4), and four annularly distributed fixing columns (14) are provided inside the guide groove (5). Three collection boxes (6) are provided outside the housing (1), and the collection boxes (6) are welded and fixed to the housing (1), and the openings of the collection boxes (6) are connected to the guide groove (5).

4. The screening device for alumina ceramic granulation processing according to claim 1, characterized in that: The surface of the screen (19) is provided with an inclined surface (17) and a blocking surface (18), and the inclined surface (17) and the blocking surface (18) are spaced apart.

5. The screening device for alumina ceramic granulation processing according to claim 4, characterized in that: The mesh size of the screen (19) increases gradually from top to bottom.

6. The screening device for alumina ceramic granulation processing according to claim 1, characterized in that: A discharge port (7) is installed at the bottom of the housing (1), and a cover plate threadedly connected to the discharge port (7) is installed at the bottom of the discharge port (7).

7. The screening device for alumina ceramic granulation processing according to claim 1, characterized in that: Support frames (8) are welded and fixed at the four corners of the bottom of the housing (1).

Images