A strong magnetic discharging mechanism for separating impurities in silicon material

Abstract

A kind of strong magnetic material discharging mechanism for silicon material impurity separation, the mechanism relates to silicon material screening technical field;Including cavity, magnetic separation conveying part, material guiding chute, hopper, sleeve frame;The inner side of the cavity is close to the position of top feed inlet and is equipped with magnetic separation conveying part, and the silicon material entering feed inlet falls above the conveying belt of magnetic separation conveying part;The lower side of the magnetic separation conveying part is equipped with material guiding chute;The silicon material screened out from the magnetic separation conveying part is guided to the hopper below the material guiding chute;The sleeve frame is hollow cylindrical frame body with arc surface;The hopper is cylindrical hollow cavity and is rotationally arranged in the sleeve frame;The arc surface of the hopper is equipped with opening;The hopper coincides the through position of the sleeve frame by rotating the opening;The mechanism realizes the conversion of material receiving and discharging by the rotation of the sleeve frame and the hopper, replaces the original opening equipment cleaning mode, avoids exposing the material falling area, reduces dust diffusion, and the equipment can continue to operate during discharging.

Description

Technical Field

[0001] This utility model relates to the field of silicon material screening technology, specifically to a strong magnetic material discharge mechanism for separating impurities in silicon material. Background Technology

[0002] Monocrystalline silicon edge trimmings are byproducts generated during the processing of monocrystalline silicon rods, primarily originating from the cutting and trimming of the rod ends. This silicon material can be recycled. Before recycling, the edge trimmings need to undergo pre-treatment cleaning to remove oil stains and adhesive residue. After cleaning, the edge trimmings are crushed. Due to the various processing steps, the crushed edge trimmings contain some metal shavings, which need to be removed using a magnetic separator.

[0003] The magnetic separator has a hopper for collecting metal shavings, which needs to be cleaned manually periodically. The cleaning process requires stopping the machine and opening it to remove the hopper for emptying. This operation not only affects the work, but also causes a large amount of dust to spill out from the open part of the machine and come into direct contact with the workers. Since the dust is too close to the workers' faces, some of the dust may not have time to fall off and may be inhaled by the workers, posing a certain safety hazard. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a strong magnetic discharge mechanism for separating impurities in silicon materials. This mechanism allows for the discharge of material from the hopper without opening the equipment or exposing the discharge area, thus reducing dust diffusion. It also keeps the material relatively far from workers and can continue to operate during the discharge process, preventing the equipment from stopping due to the removal of the hopper.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A strong magnetic discharge mechanism for separating impurities in silicon material includes a cavity, a magnetic separator conveyor, a guide chute, a hopper, and a frame. The magnetic separator conveyor is located on the inner side of the cavity near the top inlet, and silicon material entering through the inlet falls above the conveyor belt of the magnetic separator conveyor. A guide chute is located below the magnetic separator conveyor. The silicon material screened out by the magnetic separator conveyor is concentrated and guided into the hopper below the guide chute. The frame is a hollow cylindrical frame with a continuous arc surface. The hopper is a cylindrical hollow cavity rotatably disposed within the frame. An opening is provided on the arc surface of the hopper. The hopper rotates to align its opening with the continuous position of the frame.

[0006] Preferably, a feed inlet is provided on one side of the top of the cavity, and a discharge outlet is provided at the bottom of the cavity; the discharge outlet corresponds to the through position of the sleeve; a guide channel is installed on the outside of the discharge outlet; the metal chips discharged by the guide channel are transferred by a material cart.

[0007] Preferably, the magnetic separation conveyor includes: a conveyor roller, a magnetic roller, and a conveyor belt; the conveyor roller and the magnetic roller are fitted with a conveyor belt, and the conveyor belt is driven by the conveyor roller; the magnetic roller adsorbs magnetic metal shavings on the surface of the conveyor belt.

[0008] Preferably, the magnetic separation conveyors are arranged in a stepped manner in one or more sets; the silicon material is conveyed along the magnetic separation conveyors and completes the screening number of the corresponding number of magnetic separation conveyors; the magnetic separation conveyors are inclined with partitions, and the bottom of the partitions is inclined towards the feed inlet; the discharge end of the last set of magnetic separation conveyors is provided with a discharge port at the position of the cavity.

[0009] Preferably, the two sides of the sleeve are fixedly connected to the support plate; the support plate is fixed to the bottom of the cavity; a motor is fixed to one side of the cavity; the drive shaft of the motor is connected to the hopper through a shaft; the motor controls the hopper to rotate and discharge material.

[0010] Preferably, the opening width of the hopper is the same as the channel width at the bottom of the guide chute; baffles are fixed at the top of both ends of the sleeve; the area enclosed by the baffles and the guide chute forms a silicon material buffer zone.

[0011] The beneficial effects of this utility model are: 1. This mechanism achieves the conversion between material receiving and discharging through the rotation of the frame and the hopper, replacing the original method of opening the equipment for cleaning. This avoids exposing the material discharge area, reduces dust diffusion, and allows the equipment to continue operating during the discharge process, avoiding the need to open the equipment and stop operation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the external connection relationship of this utility model.

[0014] Figure 2 This is a schematic diagram of the material receiving state of this utility model.

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 4 This is a schematic diagram showing the positional relationship of the cache area of ​​this utility model.

[0017] Figure 5 This is a schematic diagram of the disassembled structure of the hopper of this utility model.

[0018] Figure 6 This is a partial structural diagram of the downward discharge state of this utility model.

[0019] Figure 7 This is a schematic diagram showing the positional relationship of the magnetic separation conveyor of this utility model.

[0020] In the figure, cavity 1, feed inlet 1.1, discharge outlet 1.2, discharge outlet 1.3, magnetic separation conveyor 2, conveyor roller 2.1, magnetic roller 2.2, conveyor belt 2.3, guide chute 3, hopper 4, opening 4.1, sleeve 5, guide channel 6, partition 7, support plate 8, motor 9, baffle 10, and material cart 11. Detailed Implementation

[0021] like Figure 1-6 As shown, to achieve the above objectives, this utility model employs the following technical solution: A strong magnetic discharge mechanism for separating impurities in silicon material is disclosed. This mechanism mainly performs automatic discharge for magnetic separators without requiring the equipment to be turned on and shut down. The cavity 1 is the main housing of the magnetic separator. A feed inlet 1.1 is located on one side of the top of the cavity 1, and a discharge outlet 1.2 is located at the bottom of the cavity 1. The discharge outlet 1.2 corresponds to the through-hole position of the sleeve 5. A guide channel 6 is installed outside the discharge outlet 1.2. Metal scrap discharged from the guide channel 6 is transferred via a trolley 11. A magnetic separation conveyor 2 is located on the inner side of the cavity 1 near the top feed inlet 1.1. Silicon material entering through the feed inlet 1.1 falls above the conveyor belt 2.3 of the magnetic separation conveyor 2. A guide chute 3 is located below the magnetic separation conveyor 2. The silicon material screened out by the magnetic separation conveyor 2 is concentrated and guided into a hopper 4 below the guide chute 3. The sleeve 5 is a hollow cylindrical frame with a continuous arc surface. The hopper 4 is a cylindrical hollow cavity 1 rotatably mounted within the sleeve 5. The hopper 4 has an opening 4.1 on its arc surface; the width of the opening 4.1 of the hopper 4 is the same as the channel width at the bottom of the guide chute 3; baffles 10 are fixed to the top of both ends of the sleeve 5; the area enclosed by the baffles 10 and the guide chute forms a silicon material buffer zone. The hopper 4 rotates to align the opening 4.1 with the through position of the sleeve 5; the two sides of the sleeve 5 are fixedly connected to the support plate 8, the support plate 8 is fixed to the bottom of the cavity 1, and a motor 9 is fixed to one side of the cavity 1; the drive shaft of the motor 9 is connected to the hopper 4 through the shaft; the motor 9 controls the rotation of the hopper 4 to discharge material. When the hopper 4 rotates inside the sleeve 5 until the opening 4.1 faces upward, it is in the feeding state; when the hopper 4 rotates inside the sleeve 5 until the opening 4.1 faces downward, the downward opening 4.1 connects with the through port at the bottom of the sleeve 5, forming the discharge state. In the discharge state, the equipment does not need to be stopped. The metal chips from the continued magnetic separation will enter the buffer zone. After the hopper 4 is reset after discharge, the material in the buffer zone will automatically enter the hopper 4. To facilitate observation of the hopper 4, an observation window can be installed on one side of the cavity 1.

[0022] like Figure 3 , 7 As shown, the magnetic separation conveyor 2 includes: a conveyor roller 2.1, a magnetic roller 2.2, and a conveyor belt 2.3; the conveyor belt 2.3 is fitted onto the conveyor roller 2.1 and the magnetic roller 2.2, and the conveyor belt 2.3 is driven by the conveyor roller 2.1; the magnetic roller 2.2 adsorbs magnetic metal shavings on the surface of the conveyor belt 2. The magnetic separation conveyor 2 is arranged in a stepped manner with one or more sets; the silicon material is conveyed along the magnetic separation conveyor 2 and completes the corresponding number of screening cycles for each set of magnetic separation conveyor 2; the silicon material is conveyed forward step by step along the conveyor belt 2.3, and the metal shavings in the silicon material are adsorbed and move along the conveyor belt 2.3 until they leave the position of the magnetic roller 2.2 and fall off onto the guide chute 3. An inclined partition 7 is provided between the magnetic separation conveyor 2 sets, and the partition 7 is fixed to the cavity; the bottom of the partition 7 is inclined towards the inlet 1.1; the discharge end of the last set of magnetic separation conveyor 2 sets has an outlet 1.3 corresponding to the position of the cavity 1. The partition 7 blocks the material falling below, ensuring the correct position for metal chips.

[0023] Workflow: Silicon containing metal shavings is fed into the inlet 1.1 of the cavity 1. The silicon is conveyed along the conveyor belt 2.3. During the stepped conveying process of the conveyor belt 2.3, the magnetic rollers 2.2 of each step will attract the metal shavings in the silicon and transfer them to the bottom of the conveyor belt 2.3 until they fall into the guide chute 3 after leaving the position of the magnetic rollers 2.2. The silicon is discharged from the outlet 1.3 of the cavity 1, and the metal shavings enter the hopper 4 through the buffer area. When the metal shavings are cleaned periodically, the control motor 9 drives the hopper 4 to rotate 180°, so that the opening 4.1 of the hopper 4 faces the direction of the metal shavings. The metal shavings are discharged from the discharge outlet 1.2 of the cavity 1 to the guide channel 6. The bottom of the guide channel 6 is inclined, and the metal shavings flow into the material cart 11 along the guide channel 6. The operator then moves the material cart 11.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A strong magnetic discharge mechanism for separating impurities in silicon material, characterized in that: It includes a cavity, a magnetic separator conveyor, a guide chute, a hopper, and a frame. The magnetic separator conveyor is located on the inner side of the cavity near the top inlet, and silicon material entering through the inlet falls above the conveyor belt of the magnetic separator conveyor. A guide chute is located below the magnetic separator conveyor. The silicon material screened out by the magnetic separator conveyor is concentrated and guided into the hopper below the guide chute. The frame is a hollow cylindrical frame with a continuous arc surface. The hopper is a cylindrical hollow cavity and is rotatably mounted inside the frame. An opening is provided on the arc surface of the hopper. The hopper rotates to align its opening with the through-hole position of the frame.

2. The strong magnetic discharge mechanism for separating impurities in silicon material according to claim 1, characterized in that: The cavity has a feed inlet on one side of the top and a discharge outlet at the bottom; the discharge outlet corresponds to the through position of the sleeve; a guide channel is installed on the outside of the discharge outlet; the metal chips discharged from the guide channel are transferred by a material cart.

3. The strong magnetic discharge mechanism for separating impurities in silicon material according to claim 1, characterized in that: The magnetic separation conveyor includes: a conveyor roller, a magnetic roller, and a conveyor belt; the conveyor roller and the magnetic roller are fitted with a conveyor belt, which is driven by the conveyor roller; the magnetic roller adsorbs magnetic metal shavings on the surface of the conveyor belt.

4. The strong magnetic discharge mechanism for separating impurities in silicon material according to claim 3, characterized in that: The magnetic separation conveyor is arranged in a stepped manner, with one or more sets; the silicon material is conveyed along the magnetic separation conveyor and completes the screening number of the corresponding number of magnetic separation conveyors; the magnetic separation conveyors are inclined with partitions, and the bottom of the partitions is inclined towards the feed port; the discharge end of the last set of magnetic separation conveyors is provided with a discharge port at the position of the cavity.

5. A strong magnetic discharge mechanism for separating impurities in silicon material according to claim 2, characterized in that: The two sides of the sleeve are fixedly connected to the support plate; the support plate is fixed to the bottom of the cavity; a motor is fixed to one side of the cavity; the drive shaft of the motor is connected to the hopper through the shaft; the motor controls the hopper to rotate and discharge material.

6. The strong magnetic discharge mechanism for separating impurities in silicon material according to claim 1, characterized in that: The opening width of the hopper is the same as the channel width at the bottom of the guide chute; baffles are fixed at the top of both ends of the sleeve; the area enclosed by the baffles and the guide chute forms a silicon material buffer zone.

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