A magnetic separation device for a cubic boron nitride table

Abstract

A magnetic separation device for cubic boron nitride shaking table equipment, by arranging a transmission device, a magnetic separation block and a discharge chute above the shaking table bed surface, and the transmission device includes a mounting bracket, a rotating wheel arranged at both ends of the mounting bracket and a transmission belt rotatably arranged between the rotating wheels, and the magnetic separation block is attached above the lower conveying belt and arranged side by side between the two rotating wheels; the discharge chute is arranged behind the rotating wheel on the transmission outlet side and is connected by an inclined arrangement of the receiving plate, the transmission direction of the transmission device is matched with the material flow direction of the shaking table bed surface, the magnetic separation device can be directly installed on the existing shaking table, and the reciprocating magnetic separation of the shaking table bed surface can be realized, the magnetic separation process of the material on the shaking table bed surface can be realized in the whole shaking process, the magnetic separation process has long duration, wide range and good magnetic separation effect, and can meet the rapid magnetic separation and impurity removal of the cubic boron nitride separation process.

Description

Technical Field

[0001] This utility model belongs to the field of cubic boron nitride sorting technology, and specifically relates to a magnetic separation device for a cubic boron nitride shaking table. Background Technology

[0002] During the sorting process of cubic boron nitride, a shaking table is used to separate the synthesized blocks. After the initial sorting of cubic boron nitride single crystals, further fine processing is carried out using other processes. For iron-containing metallic impurities present in cubic boron nitride single crystals, chemical processes are often used for impurity removal, while magnetic separators are also used.

[0003] However, both processes have their own drawbacks: Chemical purification uses chemical reagents, which are harmful to the environment and have complex operating procedures, significantly increasing costs. Magnetic separation does not use chemical reagents, but it requires separate equipment purchase and a separate magnetic separation step after shaking table separation, which extends the production cycle and increases production costs.

[0004] Utility model CN217512034U discloses a separating shaking table for the production of cubic boron nitride. Key technical features include a shaking table surface, a water tank at the rear end of the shaking table surface, a feed pipe in the middle of the water tank, a discharge box directly above the feed pipe, a material cylinder at the top of the discharge box, a first discharge pipe penetrating into the discharge box at the bottom of the material cylinder, a butterfly valve on the first discharge pipe, a rotating handle at the front end of the butterfly valve, a conveying pipe on the lower left side of the first discharge pipe, a second discharge pipe vertically arranged at the left end of the conveying pipe, and a horizontally arranged [feature / structure] within the box below the second discharge pipe. The device is equipped with an iron support rod, on which a vertical column is mounted. A mounting plate extending left and right is rotatably mounted on the upper end of the column. A material tray is positioned above the left end of the mounting plate, and a first connecting rod is hinged to the right end of the mounting plate. A magnet is attached to the lower end of the first connecting rod, and a second connecting rod is hinged to the right end of the mounting plate. The upper end of the second connecting rod is rotatably connected to a rotating handle. The device primarily utilizes the change in gravity after the material tray is filled to achieve automatic material feeding. The rotating mounting plate and the second connecting rod hinged to it control the opening and closing of a butterfly valve to stop feeding when the material tray is emptying. Magnetic separation for screening impurities is not involved.

[0005] In summary, there is a need to develop an efficient and environmentally friendly device to remove iron-containing impurities from cubic boron nitride single crystals. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by providing a magnetic separation device for a cubic boron nitride shaking table, thereby achieving rapid magnetic separation and impurity removal in the cubic boron nitride sorting process.

[0007] To solve the above technical problems, the technical solution adopted by this utility model is as follows: A magnetic separation device for a cubic boron nitride shaking table includes a transmission device installed above the shaking table surface, a magnetic separation block, and a discharge chute located on one side of the transmission device. The transmission device includes a mounting bracket, rotating wheels arranged at both ends of the mounting bracket, and a transmission belt arranged between the rotating wheels. The magnetic separation block is attached to the conveyor belt located on the lower side and arranged between the two rotating wheels. The unloading chute is located behind the rotary wheel on the transmission outlet side and is connected by an inclined receiving plate, the top of which extends to the bottom of the transmission belt with magnetic separators attached.

[0008] The transmission belt is also provided with multiple unloading protrusions at intervals.

[0009] The magnetic separators are arranged individually above the transmission belt.

[0010] The transmission direction of the transmission device is set to match the material flow direction on the shaking table surface.

[0011] The magnetic separators are arranged in multiple blocks above the transmission belt.

[0012] The magnetic separators are evenly spaced above the transmission belt.

[0013] The magnetic separator uses a high-strength magnetic block.

[0014] The beneficial effects of this utility model are: (1) The magnetic separation device for cubic boron nitride shaking table equipment is provided by arranging a transmission device, magnetic separation blocks and unloading trough above the shaking table surface. The transmission device includes a mounting bracket, rotating wheels arranged at both ends of the mounting bracket and a transmission belt arranged between the rotating wheels. The magnetic separation blocks are attached to the conveyor belt located on the lower side and arranged side by side between the two rotating wheels. The unloading trough is arranged behind the rotating wheel located on the transmission outlet side and is connected by a receiving plate arranged at an incline. The transmission direction of the transmission device is matched with the material flow direction of the shaking table surface. The magnetic separation device can be directly installed on the existing shaking table and can perform reciprocating magnetic separation on the shaking table surface. It can perform magnetic separation on the material on the shaking table surface in the entire shaking process. The magnetic separation process has a long duration, a wide range of action and good magnetic separation effect, which can meet the requirements of rapid magnetic separation and impurity removal in the cubic boron nitride separation process.

[0015] (2) The unloading trough is connected by an inclined receiving plate, and the top of the receiving plate extends to the bottom of the transmission belt with magnetic separation blocks attached, ensuring that the material can fully enter the unloading trough; multiple unloading protrusions are spaced apart on the transmission belt to prevent magnetic impurities from accumulating at the shaft when the magnetic force is greater than the friction between the magnetic material and the transmission belt. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the magnetic separator arrangement. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0018] This invention provides a magnetic separation device for a cubic boron nitride shaking machine, such as... Figure 1 and Figure 2 As shown.

[0019] A magnetic separation device for a cubic boron nitride shaking table includes a transmission device mounted above the shaking table surface 1, magnetic separation blocks 2, and a discharge chute 3 located on one side of the transmission device. The transmission device includes a mounting bracket 4, rotating wheels 5 arranged at both ends of the mounting bracket 4, and a transmission belt 6 rotatably arranged between the rotating wheels. The magnetic separation blocks 2 are attached to the lower side of the transmission belt 6 and arranged between the two rotating wheels 5.

[0020] The unloading trough 3 is located behind the rotating wheel on the transmission outlet side and is connected by an inclined receiving plate. The top of the receiving plate extends to below the transmission belt 6 on which the magnetic separator 2 is attached, ensuring that the adsorbed impurities can fall completely into the unloading trough. The transmission direction of the transmission device is matched with the material flow direction of the shaking table 1 to ensure that the material is fully screened. Multiple unloading protrusions 7 are spaced apart on the transmission belt to prevent magnetic impurities from accumulating at the rotating shaft when the magnetic force is greater than the friction between the magnetic material and the transmission belt.

[0021] The magnetic separator 2 is arranged in single or multiple blocks above the transmission belt. When multiple magnetic separators are selected, they are evenly spaced above the transmission belt. To ensure the magnetic separation effect, high-strength magnetic blocks are used for the magnetic separators.

[0022] During installation, the magnetic separator can be placed directly on the shaking table and supported by a mounting bracket. During the shaking process, the rotary wheel drives the conveyor belt to rotate, with the transmission direction matching the direction of material flow on the shaking table surface. High-strength magnetic blocks are attached tightly above the lower belt, and these blocks can be multiple or a single block. During the shaking process, the material enters the shaking table surface with the slurry and begins to spread across the entire surface under the action of the table surface. During this process, iron-containing impurities in the material are adsorbed onto the conveyor belt by the upper magnetic separator blocks and move with the conveyor belt to the rotary wheel. Since there is no magnetic force at the rotary wheel, the adsorbed impurities are discharged at the discharge chute. The conveyor belt is also equipped with multiple discharge protrusions at intervals to prevent magnetic impurities from accumulating at the shaft when the magnetic force is greater than the friction between the magnetic material and the conveyor belt, thus meeting the requirements for rapid magnetic separation and impurity removal in the cubic boron nitride separation process.

[0023] If this patent uses terms such as "first" and "second" to define components, those skilled in the art should know that the use of "first" and "second" is merely for the convenience of describing this utility model and simplifying the description, and the above terms have no special meaning.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0025] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

Claims

1. A magnetic separation device for a cubic boron nitride shaking table, characterized in that: It includes a transmission device installed above the table of the shaking table, a magnetic separator, and a discharge chute located on one side of the transmission device. The transmission device includes a mounting bracket, rotating wheels arranged at both ends of the mounting bracket, and a transmission belt arranged between the rotating wheels. The magnetic separator is attached to the conveyor belt located on the lower side and arranged between the two rotating wheels. The unloading chute is located behind the rotary wheel on the transmission outlet side and is connected by an inclined receiving plate, the top of which extends to the bottom of the transmission belt with magnetic separators attached.

2. The magnetic separation device for a cubic boron nitride shaking table according to claim 1, characterized in that: The transmission belt is also provided with multiple unloading protrusions at intervals.

3. The magnetic separation device for a cubic boron nitride shaking table according to claim 1, characterized in that: The magnetic separators are arranged individually above the transmission belt.

4. The magnetic separation device for a cubic boron nitride shaking table according to claim 1, characterized in that: The transmission direction of the transmission device is set to match the material flow direction on the shaking table surface.

5. A magnetic separation device for a cubic boron nitride shaking table according to claim 1, characterized in that: The magnetic separators are arranged in multiple blocks above the transmission belt.

6. A magnetic separation device for a cubic boron nitride shaking table according to claim 5, characterized in that: The magnetic separators are evenly spaced above the transmission belt.

7. A magnetic separation device for a cubic boron nitride shaking table according to any one of claims 1 to 6, characterized in that: The magnetic separator uses a high-strength magnetic block.

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