Magnetic separation device for polycrystalline silicon production

Abstract

The utility model provides a magnetic separation device for polycrystalline silicon production, which belongs to the technical field of polycrystalline silicon production and comprises a transportation component, the transportation component comprises a supporting bottom plate, a plurality of groups of vibration reduction mechanisms are mounted on the surface of the supporting bottom plate, and an electric conveying belt is mounted at the top of each vibration reduction mechanism. A first mounting frame is mounted on the surface of the electric conveying belt, a rodless air cylinder is mounted on the surface of the first mounting frame, and a connecting rod is fixedly connected to the surface of a rodless air cylinder moving plate. According to the scheme, polycrystalline silicon is conveyed through the electric conveying belt, and meanwhile, the connecting rod and a scraping plate are driven by the rodless air cylinder moving plate to scrape the polycrystalline silicon; meanwhile, a vibration motor drives an electric conveying belt to shake, so that the polycrystalline silicon is flattened, the influence of polycrystalline silicon accumulation on the magnetic separation effect is reduced, meanwhile, the vibration effect of the device is reduced under the action of a vibration reduction mechanism, and then the polycrystalline silicon is subjected to magnetic separation through a magnetic separation assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of polysilicon production, and particularly relates to a magnetic separation device for polysilicon production. Background Art

[0002] Polysilicon is a form of elemental silicon; when molten elemental silicon solidifies under supercooled conditions, silicon atoms are arranged in a diamond lattice form to form many crystal nuclei. If these crystal nuclei grow into grains with different crystal plane orientations, then these grains combine to crystallize into polysilicon. In the current processing steps, it is necessary to perform magnetic separation on polysilicon.

[0003] After retrieval, the existing published patent number is: CN218282116U, and the published patent name is: A magnetic separation device for polysilicon production, belonging to the technical field of polysilicon production. It includes a lifting and conveying mechanism and a horizontal conveying component. A suspended permanent magnet separator is provided above the lifting and conveying mechanism and the horizontal conveying component. The lifting and conveying mechanism and the horizontal conveying component are connected. The rotating shafts at the discharge ends of the lifting and conveying mechanism and the horizontal conveying component are magnetic rollers. A suspended permanent magnet separator is arranged above the lifting and conveying mechanism to perform primary impurity removal on the polysilicon material, and the magnetic roller on the lifting and conveying mechanism performs secondary impurity removal on the polysilicon material; a suspended permanent magnet separator is arranged above the horizontal conveying component to perform tertiary impurity removal on the polysilicon material, and the magnetic roller on the horizontal conveying component performs quaternary impurity removal on the polysilicon material; the utility model has the advantage of better impurity removal effect, but the above scheme is not convenient to level the polysilicon during transportation, resulting in the polysilicon being in a piled-up state, thereby reducing the magnetic separation effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic separation device for polysilicon production, aiming to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A magnetic separation device for polysilicon production, comprising:

[0007] A transportation component, the transportation component includes a support bottom plate, a plurality of damping mechanisms are installed on the surface of the support bottom plate, an electric conveyor belt is installed on the top of the damping mechanism, a first mounting frame is installed on the surface of the electric conveyor belt, a rodless cylinder is installed on the surface of the first mounting frame, a connecting rod is fixedly connected to the surface of the moving plate of the rodless cylinder, a scraping plate is installed at the bottom of the connecting rod, a second mounting frame is installed on the surface of the electric conveyor belt, and a vibration motor is installed on the surface of the second mounting frame; and

[0008] Magnetic separation component, the magnetic separation component includes a third mounting frame installed on the surface of the support base plate, an installation frame is installed on the surface of the third mounting frame, a plurality of first rotating shafts are rotatably connected to the surface of the installation frame, a permanent magnet conveyor belt is arranged on the surface of the first rotating shaft, a driving mechanism for driving one of the first rotating shafts to rotate is installed on the surface of the installation frame, and a scraping plate is installed on the surface of the third mounting frame and on one side of the permanent magnet conveyor belt.

[0009] As a preferred solution of the present utility model, the damping mechanism includes a damping pad installed on the surface of the support base plate, a damper is installed on the surface of the damping pad, and the damper is fixedly connected to the bottom of the electric conveyor belt, and a damping spring is installed on the outside of the damper.

[0010] As a preferred solution of the present utility model, a feeding baffle is installed on the surface of the electric conveyor belt, and the opening above the feeding baffle is larger than the opening below.

[0011] As a preferred solution of the present utility model, a collection box is arranged on the surface of the support base plate, and the collection box is located on one side of the permanent magnet conveyor belt and below the scraping plate.

[0012] As a preferred solution of the present utility model, the driving mechanism includes a first pulley installed on the surface of one of the first rotating shafts; and

[0013] a fourth mounting frame installed on the surface of the installation frame, a servo motor is installed on the surface of the fourth mounting frame, a second pulley is installed on the surface of the output shaft of the servo motor, a transmission belt is arranged on the surface of the second pulley, and the transmission belt is in contact with the first pulley.

[0014] As a preferred solution of the present utility model, two mounting blocks are installed on the surface of the installation frame, a second rotating shaft is rotatably connected to the surface of the mounting block, and the second rotating shaft is in contact with the permanent magnet conveyor belt.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] In this solution, the polysilicon is conveyed by the electric conveyor belt. At the same time, the moving plate of the rodless cylinder drives the connecting rod and the scraping plate to scrape the polysilicon. At the same time, the vibration motor drives the electric conveyor belt to shake so as to level the polysilicon, reducing the influence of polysilicon accumulation on the magnetic separation effect. At the same time, under the action of the damping mechanism, the vibration effect of the device is reduced, and then the polysilicon is magnetically separated by the magnetic separation component. Description of the drawings

[0017] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0018] In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the transportation component in the structure of the present utility model;

[0021] Figure 3 is a schematic diagram of the first perspective of the magnetic separation component in the structure of the present utility model;

[0022] Figure 4 is a schematic diagram of the second perspective of the magnetic separation component in the structure of the present utility model.

[0023] In the figure: 1. Transportation component; 101. Support bottom plate; 102. Shock pad; 103. Damper; 104. Shock spring; 105. Electric conveyor belt; 106. First mounting frame; 107. Rodless cylinder; 108. Connecting rod; 109. Scraping plate; 110. Second mounting frame; 111. Vibration motor; 112. Feeding baffle; 113. Collection box; 2. Magnetic separation component; 201. Third mounting frame; 202. Installation frame; 203. First rotating shaft; 204. Permanent magnet conveyor belt; 205. First pulley; 206. Fourth mounting frame; 207. Servo motor; 208. Second pulley; 209. Transmission belt; 210. Installation block; 211. Second rotating shaft; 212. Scraping plate. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] Please refer to Figures 1-4 , the technical solutions provided in this embodiment are as follows:

[0027] A magnetic separation device for polysilicon production, comprising: a transportation component 1, the transportation component 1 includes a support bottom plate 101, a plurality of vibration damping mechanisms are installed on the surface of the support bottom plate 101, an electric conveyor belt 105 is installed on the top of the vibration damping mechanism, a first mounting frame 106 is installed on the surface of the electric conveyor belt 105, a rodless cylinder 107 is installed on the surface of the first mounting frame 106, a connecting rod 108 is fixedly connected to the surface of the moving plate of the rodless cylinder 107, a scraping plate 109 is installed at the bottom of the connecting rod 108, a second mounting frame 110 is installed on the surface of the electric conveyor belt 105, a vibration motor 111 is installed on the surface of the second mounting frame 110, and a magnetic separation component 2, the magnetic separation component 2 includes a third mounting frame 201 installed on the surface of the support bottom plate 101, an installation frame 202 is installed on the surface of the third mounting frame 201, a plurality of first rotating shafts 203 are rotatably connected to the surface of the installation frame 202, a permanent magnet conveyor belt 204 is arranged on the surface of the first rotating shaft 203, a driving mechanism for driving one of the first rotating shafts 203 to rotate is installed on the surface of the installation frame 202, and a scraping plate 212 is installed on the surface of the third mounting frame 201 and on one side of the permanent magnet conveyor belt 204.

[0028] In a specific embodiment of the present invention, the polysilicon is transported by the electric conveyor belt 105. At the same time, the moving plate of the rodless cylinder 107 drives the connecting rod 108 and the scraping plate 109 to scrape the polysilicon. At the same time, the vibration motor 111 drives the electric conveyor belt 105 to shake, so as to level the polysilicon, reducing the influence of polysilicon accumulation on the magnetic separation effect. At the same time, under the action of the vibration damping mechanism, the vibration effect of the device is reduced, and then the polysilicon is magnetically separated by the magnetic separation component 2.

[0029] Specifically, the vibration damping mechanism includes a shock pad 102 installed on the surface of the support bottom plate 101, a damper 103 is installed on the surface of the shock pad 102, and the damper 103 is fixedly connected to the bottom of the electric conveyor belt 105, and a shock-absorbing spring 104 is installed on the outside of the damper 103.

[0030] In a specific embodiment of the present invention, when the electric conveyor belt 105 shakes, the acting force will be transmitted to the damper 103 at this time. At this time, the probability of shaking is reduced under the action of the damper 103 and the shock-absorbing spring 104.

[0031] Specifically, a feed baffle 112 is installed on the surface of the electric conveyor belt 105, and the opening above the feed baffle 112 is larger than the opening below.

[0032] In a specific embodiment of the present invention, through the setting of the feed baffle 112, it is convenient to pour the polysilicon, and at the same time, the polysilicon is blocked, thereby reducing the probability of the polysilicon falling from both sides of the electric conveyor belt 105.

[0033] Specifically, a collection box 113 is provided on the surface of the support base plate 101, and the collection box 113 is located on one side of the permanent magnet conveyor belt 204 and below the scraping plate 212.

[0034] In a specific embodiment of the present invention, through the arrangement of the collection box 113, it is convenient to collect the magnetically separated solids, thus facilitating the next operation for the staff.

[0035] Specifically, the driving mechanism includes a first pulley 205 installed on the surface of a first rotating shaft 203, and a fourth mounting bracket 206 installed on the surface of the mounting frame 202. A servo motor 207 is installed on the surface of the fourth mounting bracket 206. A second pulley 208 is installed on the surface of the output shaft of the servo motor 207. A transmission belt 209 is provided on the surface of the second pulley 208, and the transmission belt 209 is in contact with the first pulley 205.

[0036] In a specific embodiment of the present invention, when the servo motor 207 is started, its output shaft drives the second pulley 208 to rotate. At this time, under the action of the transmission belt 209, the first pulley 205 is driven to rotate, thereby driving a first rotating shaft 203 to rotate.

[0037] Specifically, two mounting blocks 210 are installed on the surface of the mounting frame 202. A second rotating shaft 211 is rotatably connected to the surface of the mounting block 210, and the second rotating shaft 211 is in contact with the permanent magnet conveyor belt 204.

[0038] In a specific embodiment of the present invention, through the combined use of the mounting block 210 and the second rotating shaft 211, the permanent magnet conveyor belt 204 can be supported, thereby reducing the probability of the permanent magnet conveyor belt 204 being recessed due to the gravity of the polysilicon.

[0039] Working principle: The polysilicon is conveyed by the electric conveyor belt 105. At the same time, the moving plate of the rodless cylinder 107 drives the connecting rod 108 and the scraping plate 109 to scrape the polysilicon. At the same time, the vibration motor 111 drives the electric conveyor belt 105 to shake, so as to level the polysilicon, reducing the influence of polysilicon accumulation on the magnetic separation effect. At the same time, under the action of the vibration damping mechanism, the vibration effect of the device is reduced. At the same time, the servo motor 207 is started. The output shaft of the servo motor 207 drives the second pulley 208 to rotate. At this time, under the action of the transmission belt 209, the first pulley 205 is driven to rotate, thereby driving a first rotating shaft 203 to rotate. The first rotating shaft 203 rotates to drive the permanent magnet conveyor belt 204 to move and perform magnetic separation work. The magnetically separated solids will fall into the interior of the collection box 113 under the action of the scraping plate 212.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A magnetic separation device for polysilicon production, characterized in that, Comprising: A transportation component (1), the transportation component (1) includes a supporting bottom plate (101), a plurality of damping mechanisms are installed on the surface of the supporting bottom plate (101), an electric conveyor belt (105) is installed on the top of the damping mechanism, a first mounting frame (106) is installed on the surface of the electric conveyor belt (105), a rodless cylinder (107) is installed on the surface of the first mounting frame (106), a connecting rod (108) is fixedly connected to the surface of the moving plate of the rodless cylinder (107), a scraping plate (109) is installed at the bottom of the connecting rod (108), a second mounting frame (110) is installed on the surface of the electric conveyor belt (105), and a vibration motor (111) is installed on the surface of the second mounting frame (110); And A magnetic separation component (2), the magnetic separation component (2) includes a third mounting frame (201) installed on the surface of the supporting bottom plate (101), an installation frame (202) is installed on the surface of the third mounting frame (201), a plurality of first rotating shafts (203) are rotatably connected to the surface of the installation frame (202), a permanent magnet conveyor belt (204) is arranged on the surface of the first rotating shaft (203), a driving mechanism for driving one of the first rotating shafts (203) to rotate is installed on the surface of the installation frame (202), and a scraping plate (212) is installed on the surface of the third mounting frame (201) and on one side of the permanent magnet conveyor belt (204).

2. The magnetic separation device for polysilicon production according to claim 1, characterized in that, The damping mechanism includes a damping pad (102) installed on the surface of the supporting bottom plate (101), a damper (103) is installed on the surface of the damping pad (102), and the damper (103) is fixedly connected to the bottom of the electric conveyor belt (105), and a damping spring (104) is installed on the outside of the damper (103).

3. The magnetic separation device for polysilicon production according to claim 1, characterized in that, An inlet baffle (112) is installed on the surface of the electric conveyor belt (105), and the opening above the inlet baffle (112) is larger than the opening below.

4. A magnetic separation device for polysilicon production according to claim 1, characterized in that, A collection box (113) is arranged on the surface of the supporting bottom plate (101), and the collection box (113) is located on one side of the permanent magnet conveyor belt (204) and below the scraping plate (212).

5. A magnetic separation device for polysilicon production according to claim 1, characterized in that, The driving mechanism includes a first pulley (205) installed on the surface of one of the first rotating shafts (203); and A fourth mounting frame (206) installed on the surface of the installation frame (202), a servo motor (207) is installed on the surface of the fourth mounting frame (206), a second pulley (208) is installed on the surface of the output shaft of the servo motor (207), a transmission belt (209) is arranged on the surface of the second pulley (208), and the transmission belt (209) is in contact with the first pulley (205).

6. The magnetic separation device for polysilicon production according to claim 1, characterized in that, Two mounting blocks (210) are installed on the surface of the installation frame (202), a second rotating shaft (211) is rotatably connected to the surface of the mounting block (210), and the second rotating shaft (211) is in contact with the permanent magnet conveyor belt (204).

Images