Polycrystalline silicon carbon head material treatment device

By using a crushing roller to break down large particles in a polycrystalline silicon carbon head material processing device, the problems of uniformity and low efficiency in the polycrystalline silicon carbon head material refining process were solved, and the production of high-purity products was achieved.

CN224030660UActive Publication Date: 2026-03-24YUNNAN TONGWEI HIGH PURITY CRYSTALLINE SILICON CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The large particle size of polycrystalline silicon carbide feedstock leads to low uniformity and efficiency during the refining process, affecting product purity and quality.

Method used

Large-particle polycrystalline silicon carbide feedstock is crushed using crushing rollers inside the crushing chamber, reducing particle size and improving refining uniformity and efficiency.

Benefits of technology

Through fine crushing, the polycrystalline silicon carbide feedstock reacts more fully in the subsequent refining process, achieving high purity quality requirements. This avoids the problem of low purity caused by direct feeding into the heating furnace, thus improving product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a polycrystalline silicon carbon head material treatment device, and aims to solve the technical problems that large-particle polycrystalline silicon carbon head materials have influence on refining uniformity and efficiency and have adverse influence on the quality of final products. The treatment device comprises a crushing box with a feeding hole in the top and a discharging hole in the side part; the two crushing rollers are arranged in the crushing box in parallel, and the sides, close to each other, of the two crushing rollers rotate from top to bottom; an output shaft of the driving motor is in power connection with the two crushing rollers; the side part of the heating furnace is communicated with the discharge hole, and a heating element is arranged in the heating furnace; and the purification part is communicated with the top of the heating furnace through a smoke exhaust pipe. According to the treatment device, the large-particle polycrystalline silicon carbon head material is crushed through the crushing rollers in the crushing box, so that the particle size of the polycrystalline silicon carbon head material is reduced, the refining uniformity and efficiency are improved, and the influence on the quality of a final product is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of polysilicon carbon head material processing technical field, specifically to a kind of for polysilicon carbon head material processing device. BACKGROUND

[0002] Carbon head material refers to the carbon-containing impurities generated in the production process of polysilicon due to raw materials, reactions and other factors. These impurities need to be effectively removed to improve the purity and crystal quality of polysilicon.

[0003] However, there is a significant challenge in processing and treating polysilicon carbon head material. The polysilicon carbon head material to be processed is generally in the form of large blocks. This large particle state may become an obstacle to improving product purity during processing and refining. Due to the large particles, the uniformity and efficiency of the refining process may be affected, thereby adversely affecting the quality of the final product. SUMMARY

[0004] To address the technical problem of the influence of large particle polysilicon carbon head material on the uniformity and efficiency of refining and the adverse impact on the quality of the final product, the utility model provides a polysilicon carbon head material processing device. The large particle polysilicon carbon head material is crushed by the crushing rollers in the crushing box, thereby reducing the particle size of the polysilicon carbon head material, improving the uniformity and efficiency of refining, and reducing the impact on the quality of the final product.

[0005] The technical solution of the utility model is:

[0006] A polysilicon carbon head material processing device, comprising:

[0007] A crushing box with a feed inlet at the top and a discharge outlet on the side;

[0008] Two crushing rollers are arranged in the crushing box parallel to each other, and both rotate from top to bottom on one side close to each other;

[0009] A drive motor with its output shaft connected to the two crushing rollers;

[0010] A heating furnace with its side connected to the discharge outlet and a heating element inside;

[0011] A purification element connected to the top of the heating furnace through an exhaust pipe.

[0012] Optionally, one side of the crushing box is provided with a pair of intermeshing gear plates, two gear plates are connected to the two crushing rollers respectively, and the output shaft of the drive motor is connected to one of the gear plates.

[0013] Optionally, it further comprises:

[0014] a transport shell arranged at the side of the crushing box;

[0015] a transport member arranged in the transport shell and having a top part above the feeding port of the crushing box for adding the polysilicon carbon head material into the crushing box.

[0016] Optionally, the transport member comprises:

[0017] two transmission rods arranged in the transport shell and parallel to each other, and the two transmission rods are arranged one above the other;

[0018] a transport belt arranged on the two transmission rods and arranged obliquely, and the top end of the transport belt is above the feeding port of the crushing box;

[0019] a rotating motor having an output shaft in power connection with one of the transmission rods.

[0020] Optionally, the surface of the transmission rod and the inner wall of the transport belt are in meshing structure.

[0021] Optionally, the purification member is arranged in a purification box, and the smoke exhaust pipe is in communication with the purification box.

[0022] Optionally, the purification member comprises:

[0023] a fan arranged at one side of the purification box, and the fan is used for sending air into the purification box;

[0024] a filter plate arranged in the purification box and opposite to the air outlet of the fan;

[0025] wherein, the side of the purification box away from the fan is provided with a smoke exhaust port.

[0026] Optionally, the end of the smoke exhaust pipe is between the fan and the filter plate.

[0027] Optionally, the top of the heating furnace is provided with a cover plate.

[0028] Optionally, the crushing box, the heating furnace and the purification member are all arranged on a bottom plate, and the heating furnace is between the crushing box and the purification member.

[0029] Compared with the prior art, the utility model has the beneficial effects that:

[0030] By arranging the crushing member, the polysilicon carbon head material can be finely crushed and effectively decomposed into fine particles, so that the polysilicon carbon head material can be more fully reacted in the subsequent refining process, thereby meeting the quality requirement of high purity, effectively avoiding the mode of directly putting the large polysilicon carbon head material into the inner wall of the heating furnace in the traditional method, thereby solving the problem of low purity in the refining process and improving the overall quality of the product. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0034] Figure 3 This is a three-dimensional structural diagram of the cleanroom component;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the broken component;

[0036] Figure 5 This is a three-dimensional structural diagram of the transport component. Detailed Implementation

[0037] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0040] Example:

[0041] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The embodiment discloses a polysilicon carbon head material processing device, which comprises a base assembly 100 and an operation assembly 200. The device can finely crush the polysilicon carbon head material into small particles by arranging a crushing piece 205, so that the polysilicon carbon head material can be effectively decomposed and fully reacted in the subsequent refining process, thereby meeting the high-purity quality requirement and avoiding the traditional method of directly putting large polysilicon carbon head material into the inner wall of a heating furnace 103, thereby solving the problem of low purity in the refining process and improving the overall quality of the product.

[0042] Specifically, the base assembly 100 comprises a bottom plate 101, support legs 102, a heating furnace 103, a cover plate 104, a handle 105, a purification box 106 and a purification piece 107. The bottom plate 101 is arranged at the top of the four support legs 102, and the support legs 102 support and position the bottom plate 101. The heating furnace 103 is arranged at the top of the bottom plate 101, and the bottom plate 101 supports and positions the heating furnace 103. The cover plate 104 is connected to the heating furnace 103 by bolts, and the cover plate 104 effectively blocks the heat inside the heating furnace 103. The handle 105 is arranged at the top of the cover plate 104, and the handle 105 facilitates the taking of the cover plate 104. The purification box 106 is arranged on one side of the top of the bottom plate 101, and the gas generated in the polysilicon carbon head material refining process is filtered by the purification box 106. The purification piece 107 is arranged in the inner cavity of the purification box 106, and a smoke exhaust port 108 is arranged on one side of the purification box 106. The filtered gas is discharged through the smoke exhaust port 108.

[0043] The operation assembly 200 comprises a crushing box 201, a support plate 204, a crushing piece 205, a conveying shell 206 and a conveying piece 207. The crushing box 201 is arranged at the top of the bottom plate 101, and the top of the crushing box 201 is provided with a feeding port 202 for feeding the polysilicon carbon head material into the crushing box 201. The bottom of one side of the crushing box 201 is provided with a discharging port 203 for discharging the crushed polysilicon carbon head material in the crushing box 201. One side of the discharging port 203 is arranged on one side of the heating furnace 103, and the polysilicon carbon head material crushed by the crushing box 201 is sent to the heating furnace 103 for refining through the discharging port 203. The support plate 204 is arranged at the bottom of the crushing box 201. The crushing piece 205 is arranged on the inner wall of the support plate 204. The conveying shell 206 is arranged at the top of the bottom plate 101, and the conveying piece 207 is arranged at one end of the conveying shell 206. The conveying shell 206 and the conveying piece 207 can continuously feed the polysilicon carbon head material to be crushed into the crushing box 201.

[0044] In this embodiment, the transport shell 206 and the transport component 207 send the polycrystalline silicon carbide head material to be crushed into the crushing box 201. The crushing component 205 in the crushing box 201 crushes the polycrystalline silicon carbide head material, and then the crushed polycrystalline silicon carbide head material is sent from the discharge port 203 into the heating furnace 103 for refining.

[0045] In one specific embodiment:

[0046] The purification unit 107 includes a fan 107a, an exhaust pipe 107b, and a filter plate 107c. Two fans 107a are installed inside the purification chamber 106, and the two fans 107a are located at the same end of the purification chamber 106. One end of the exhaust pipe 107b is located at the top of the purification chamber 106, and the other end of the exhaust pipe 107b is located at the top of the heating furnace 103, connecting the heating furnace 103 and the purification chamber 106 through the exhaust pipe 107b. The filter plate 107c is fixed to the inner cavity of the purification chamber 106.

[0047] During operation, when the heating furnace 103 heats and refines polycrystalline silicon carbide, the gas generated inside is transported from the exhaust pipe 107b to the interior of the purification chamber 106. The fan 107a is turned on, drawing outside air into the purification chamber 106 and blowing the gas inside the chamber onto the surface of the filter plate 107c, where it is filtered. After being filtered by the filter plate 107c, the gas is discharged from the exhaust port 108. This technical solution effectively filters the gas generated inside the heating furnace 103.

[0048] In another specific embodiment:

[0049] See Figure 4 The crushing component 205 includes a drive motor 205a, a rotating rod 205b, a first transmission wheel 205c, a gear belt 205d, and a first crushing roller 205e. The bottom of the drive motor 205a is mounted on a support plate 204. The rotating rod 205b is connected to the output shaft of the drive motor 205a. The first transmission wheel 205c is mounted on the rotating rod 205b. The first crushing roller 205e is located inside the crushing chamber 201, with both ends of the first crushing roller 205e rotatably mounted on the crushing chamber 201 via bearings. The first crushing roller 205e and the first transmission wheel 205c are connected by the gear belt 205d.

[0050] In the process of using, the driving motor 205a is started, the polysilicon carbon head material is poured into the crushing box 201 from the feeding port 202, the output shaft of the driving motor 205a drives the rotating rod 205b to rotate, the rotating rod 205b drives the first transmission wheel 205c to rotate at the same time, the first transmission wheel 205c drives the gear belt 205d to rotate at the same time, the gear belt 205d drives the first crushing roller 205e to rotate at the same time, and the polysilicon carbon head material is crushed.

[0051] In a preferred embodiment, the crushing part 205 further comprises a first gear plate 205f, a second gear plate 205g and a second crushing roller 205h. The second crushing roller 205h is arranged in the crushing box 201 in parallel with the first crushing roller 205e.

[0052] The first crushing roller 205e is driven to rotate by the shaft, one end of which penetrates the crushing box 201 and is coaxially connected with the first gear plate 205f. The second gear plate 205g is arranged outside the crushing box 201 and is engaged with the first gear plate 205f. The second crushing roller 205h is driven to rotate by the shaft, one end of which penetrates the crushing box 201 and is coaxially connected with the second gear plate 205g.

[0053] In the process of working, the first gear plate 205f drives the second gear plate 205g to rotate at the same time, the second gear plate 205g drives the second crushing roller 205h to rotate at the same time, and the polysilicon carbon head material is crushed by the relative rotation of the first crushing roller 205e and the second crushing roller 205h, so that the polysilicon carbon head material can be effectively crushed for subsequent refining of high-purity effect.

[0054] In another specific embodiment:

[0055] Referring to Figure 5 The conveying part 207 comprises a rotating motor 207a, a first transmission rod 207b, a conveying belt 207c and a second transmission rod 207d. Specifically, the rotating motor 207a is arranged on the conveying shell 206, one end of the first transmission rod 207b is coaxially connected with the output shaft of the rotating motor 207a, the first transmission rod 207b is rotatably arranged on the conveying shell 206 through a bearing, and the conveying belt 207c is engaged with the first transmission rod 207b. The second transmission rod 207d is rotatably arranged on the conveying shell 206 through bearings at both ends, the second transmission rod 207d is located obliquely above the first transmission rod 207b, and the second transmission rod 207d is also engaged with the conveying belt 207c.

[0056] When the polycrystalline silicon carbon head material is transported, the rotating motor 207a is started, the polycrystalline silicon carbon head material is poured into the transport shell 206, the first transmission rod 207b is driven to rotate through the output shaft of the rotating motor 207a, the transport belt 207c is engaged to rotate while the first transmission rod 207b rotates, and the second transmission rod 207d is engaged to rotate while the transport belt 207c rotates, and then the polycrystalline silicon carbon head material on the surface of the transport belt 207c is sequentially transported to the inner cavity of the crushing box 201, so that the polycrystalline silicon carbon head material can be effectively transported for subsequent processing effect.

[0057] In another specific embodiment,

[0058] Referring to Figure 2 , the operating assembly 200 includes a support rod 208, one end of the support rod 208 is fixed to the side of the crushing box 201, and the other end of the support rod 208 is fixed to the bottom of one end of the transport shell 206. The transport shell 206 is supported and positioned by the support rod 208.

[0059] In another specific embodiment,

[0060] Referring to Figure 5 , the transport piece 207 further includes a limiting ring 207e, the limiting ring 207e is fixed on the rotating motor 207a, and one side of the limiting ring 207e is slidably inserted into the surface of the transport shell 206. The rotating motor 207a is limited by the fixed connection of the limiting ring 207e and the transport shell 206.

[0061] In another specific embodiment,

[0062] Referring to Figure 4 , the crushing piece 205 further includes a reinforcing block 205i, the reinforcing block 205i is fixed on the driving motor 205a, and the bottom of the reinforcing block 205i is fixed on the inner wall of the support plate 204. The driving motor 205a is fixed and reinforced by the fixed connection of the reinforcing block 205i and the support plate 204.

[0063] When the present technical solution is used:

[0064] First, the polycrystalline silicon carbon head material is poured into the transport shell 206, and then the rotating motor 207a is started, the transport belt 207c is driven by the output shaft of the rotating motor 207a, the first transmission rod 207b and the second transmission rod 207d, and then the polycrystalline silicon carbon head material is transported to the crushing box 201 by the transport belt 207c.

[0065] Then the driving motor 205a is started, the first and second crushing rollers 205e and 205h are driven to rotate through the output shaft of the driving motor 205a, the rotating rod 205b, the first transmission wheel 205c, the gear belt 205d, the first gear disc 205f and the second gear disc 205g, so as to crush the polysilicon carbon head material. Since the polysilicon carbon head material is relatively soft, the crushing process is very convenient and labor-saving.

[0066] The crushed polysilicon carbon head material is discharged from the discharge port 203 into the heating furnace 103, in which the polysilicon carbon head material is heated to the required temperature by the heat provided by the electric heating or combustion heating element.

[0067] The gas generated in the heating furnace 103 is then transported into the purification box 106 from the exhaust pipe 107b, then the fan 107a is opened, the external air is transported into the interior of the purification box 106 through the fan 107a, then the gas in the interior of the purification box 106 is blown onto the filter plate 107c through the fan 107a, and the gas is filtered through the filter plate 107c, and the filtered gas is discharged from the exhaust port 108.

[0068] The above embodiment only expresses the specific implementation of the present application, and the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A polysilicon carbon head material processing apparatus, characterized by comprising: a carbon head material processing device; and a carbon head material processing device control unit configured to control the carbon head material processing device. The utility model relates to a kind of polycrystalline silicon carbon head material crushing device, including: Crushing box, top is feed inlet, side has discharge port; Two pulverizing rollers, mutually parallelly arranged in the crushing box, and two mutually close one side are rotated from top to bottom; Driving motor, its output shaft is power connected with two pulverizing rollers; Heating furnace, its side is communicated with the discharge port, and heating element is arranged in its inside; Purification part, communicated with the top of heating furnace by exhaust pipe.

2. The apparatus for polysilicon carbon head material processing device according to claim 1, wherein, One side of the crushing box is provided with a pair of intermeshing gear plates, two gear plates are respectively connected with two pulverizing rollers, and the output shaft of the driving motor is power connected with one of the gear plates.

3. The apparatus for polysilicon carbon head material processing device of claim 1, wherein, Further including: Transport shell, arranged in the side of the crushing box; Transport part, arranged in the transport shell, and its top is located above the feed inlet of the crushing box, for adding polycrystalline silicon carbon head material into the crushing box.

4. The apparatus for polysilicon carbon head material processing device of claim 3, wherein, The transport part includes: Two transmission rods, mutually parallelly arranged in the transport shell, and two transmission rods are distributed one above the other; Transport belt, arranged on two transmission rods, and arranged obliquely, and the top end of the transport belt is located above the feed inlet of the crushing box; Rotary motor, its output shaft is power connected with one of the transmission rods.

5. The apparatus for polysilicon carbon head material processing device of claim 4, wherein, The surface of the transmission rod and the inner wall of the transport belt are meshing structures.

6. The apparatus for polysilicon carbon head material processing device of claim 1, wherein, The purification part is arranged in a purification box, and the exhaust pipe is communicated with the purification box.

7. The apparatus for polysilicon carbon head material processing device of claim 6, wherein, The purification part includes: Fan, arranged on one side of the purification box, and the fan is used to send air into the purification box; Filter plate, arranged in the purification box, and opposite the air outlet of the fan; Wherein, the side of the purification box away from the fan is provided with exhaust port.

8. The apparatus for polysilicon carbon head material processing of claim 7, wherein, The end of the exhaust pipe is located between the fan and the filter plate.

9. The apparatus for polysilicon carbon head material processing of claim 1, wherein, The top of the heating furnace is provided with a cover plate.

10. The apparatus for polysilicon carbon head material processing of claim 1, wherein, The crushing box, the heating furnace and the purification part are arranged on a bottom plate, and the heating furnace is located between the crushing box and the purification part.