Cleaning tool for electrode hole of reduction furnace

Abstract

The utility model provides a cleaning tool for an electrode hole of a reduction furnace. According to the cleaning tool, a cutting tooth structure is annularly arranged on the bottom end face of a rotary fixing part; the lower end of the supporting rod is fixedly connected to the rotary fixing part; the handheld part is connected to the upper end of the supporting rod. According to the utility model, the cutting tooth structure is arranged at the bottom of the disc-shaped structure, so that molten silicon attachments on the hole wall of the electrode can be quickly and effectively removed, and the cleaning efficiency is obviously improved.

Description

Technical Field

[0001] This application relates to the technical field of reduction furnace cleaning equipment, and more specifically to the technical field of a cleaning tool for electrode holes in a reduction furnace. Background Technology

[0002] In polysilicon production, the reduction furnace is the core equipment, and the modified Siemens process is used to produce high-purity polysilicon. This method converts trichlorosilane (SiHCl3) into polysilicon through a high-temperature reduction reaction. The modified Siemens process has advantages such as significant energy saving and consumption reduction, low cost, and high quality, and it does not pollute the environment, giving it a clear competitive advantage.

[0003] During the reduction furnace process, the heat energy required for the reduction reaction is mainly provided by the conductive heating of copper electrodes through high-voltage current. During heating, molten silicon deposits in the electrode pores, causing it to adhere to the electrode pore walls. This phenomenon easily leads to a decrease in electrode insulation performance, resulting in arc discharge. This not only interrupts the production process but may also cause partial malfunction of the equipment, negatively impacting the high-quality and efficient operation of the reduction furnace. Utility Model Content

[0004] In order to solve the technical problems of low cleaning efficiency, high labor intensity, incomplete cleaning, and potential degradation of electrode insulation performance in the existing reduction furnace electrode hole cleaning process.

[0005] A cleaning tool for electrode holes in a reduction furnace according to this application includes:

[0006] A cutting tooth structure, wherein the cutting tooth structure is arranged in a ring around the bottom end face of the rotating fixing part;

[0007] A support rod, the lower end of which is fixedly connected to the rotating fixing part;

[0008] The handheld part is connected to the upper end of the support rod.

[0009] Furthermore, the rotating fixing part includes a frustum of a cone, a fixing column, and a disc-shaped structure; the fixing column is fixed to the lower end of the support rod, the small end of the frustum of a cone is fixed to the lower end of the fixing column, and the large end of the frustum of a cone is fixed with the toothed structure.

[0010] Furthermore, the cutting tooth structure includes multiple tooth-shaped structures, all of which are arranged in a circumferential array on the lower end face of the disc-shaped structure.

[0011] Furthermore, the bottom surface of the tooth-shaped structure is an annular sector, and one side of the tooth-shaped structure is smaller than the other side along the circumference of the disc-shaped structure. The high side of the tooth-shaped structure in the circumference is provided with a cutting edge.

[0012] Furthermore, the end of the cutting edge near the inner side of the disc-shaped structure is lower than the end of the cutting edge near the outer side of the disc-shaped structure.

[0013] Furthermore, the rake face of the cutting edge is provided with an inclined chip removal surface.

[0014] Furthermore, the rake face is provided with a support surface on the side adjacent to the tooth structure.

[0015] Furthermore, the spacing between every two of the tooth-shaped structures is 2 cm.

[0016] Compared with the prior art, the beneficial results of this utility model are as follows:

[0017] First, by placing the cutting tooth structure at the bottom of the disc-shaped structure, this utility model can quickly and effectively remove molten silicon deposits on the electrode hole wall, significantly improving cleaning efficiency.

[0018] Secondly, by placing the handheld part on the support rod, this utility model allows the operator to easily control the tool, reducing physical exertion and labor intensity.

[0019] Third, by designing a toothed structure that is smaller on one side than on the other side along the circumference of the disc-shaped structure, this utility model makes the cutting edge sharper during the cleaning process and improves cutting efficiency.

[0020] Fourth, the annular sector in this invention increases the contact area with the electrode hole wall, allowing the cleaning tool to remove deposits more effectively during rotation. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments, taken with reference to the accompanying drawings:

[0022] Figure 1 This is a front view of a cleaning tool for electrode holes in a reduction furnace according to this application;

[0023] Figure 2 This is a perspective view of a cleaning tool for electrode holes in a reduction furnace according to this application;

[0024] Figure 3 yes Figure 2 An enlarged view of A.

[0025] Cutting tooth structure 1

[0026] Rotating fixing part 2

[0027] Support rod 3

[0028] Handheld part 4

[0029] Frustum 21

[0030] Fixed column 22

[0031] Disc-shaped structure 23

[0032] Tooth-shaped structure 11

[0033] Cutting edge 111

[0034] rake face 112

[0035] Chip removal surface 113

[0036] Support surface 114 Detailed Implementation

[0037] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] like Figures 1 to 3 As shown, a cleaning tool for electrode holes in a reduction furnace includes:

[0040] Cutting tooth structure 1, the cutting tooth structure 1 is arranged in a ring around the bottom end face of the rotating fixing part 2;

[0041] Support rod 3, the lower end of support rod 3 is fixedly connected to the rotating fixing part 2;

[0042] Hand-held part 4 is connected to the upper end of support rod 3.

[0043] This invention uses a cutting tooth structure 1 encircling the bottom end face of the rotating fixing part 2 to directly grind and clean the deposits on the electrode hole wall. Furthermore, by fixing the lower end of the support rod 3 to the rotating fixing part 2 and connecting the handle part 4 to the upper end of the support rod 3, this invention facilitates operator control of the tool for cleaning operations. By thoroughly cleaning the deposits on the electrode hole wall, this invention improves the electrode insulation resistance, thereby reducing the probability of electrode arcing and ensuring the high-quality and efficient operation of the reduction furnace.

[0044] In a preferred embodiment, such as Figure 1 As shown, the rotating fixing part 2 includes a truncated cone 21, a fixing column 22, and a disc-shaped structure 23; the fixing column 22 is fixed to the lower end of the support rod 3, the small end of the truncated cone 21 is fixed to the lower end of the fixing column 22, and the large end of the truncated cone is fixed with a toothed structure.

[0045] In a preferred embodiment, such as Figures 1 to 3 As shown, the cutting tooth structure 1 includes multiple tooth-shaped structures 11, all of which are arranged in a circumferential array on the lower end face of the disc-shaped structure 23. Therefore, when the tooth-shaped structures 11 clean the electrode hole, multiple points can contact the hole wall simultaneously, thereby improving cleaning efficiency. In addition, the disc-shaped structure 23 provides stability and durability, while its shape helps to ensure the uniform distribution of the tooth-shaped structures 11, ensuring the balanced movement of the cleaning tool within the electrode hole.

[0046] In a preferred embodiment, such as Figures 1 to 3 As shown, the bottom surface of the toothed structure 11 is an annular sector. One side of the toothed structure 11 is smaller than the other side along the circumference of the disc-shaped structure 23. A cutting edge 111 is provided on the higher side of the toothed structure 11 along the circumference. The annular sector helps the tool form good contact and adaptability within the electrode hole, allowing the tool to better conform to the inner wall of the electrode hole for effective cleaning. The asymmetrical design of the toothed structure 11, with one side smaller than the other along the circumference of the disc-shaped structure 23, allows the toothed structure to contact the electrode hole wall at different depths during rotation, contributing to improved cleaning uniformity and efficiency. Furthermore, the cutting edge 111 on the higher side of the toothed structure 11 along the circumference allows the cutting edge 111 to act with greater force on the deposits on the electrode hole wall during cleaning, improving the cutting effect and more effectively removing deposits such as molten silicon.

[0047] In a preferred embodiment, such as Figure 3 As shown, the end of the cutting edge 111 near the inner side of the disc-shaped structure 23 is lower than the end of the cutting edge 111 near the outer side of the disc-shaped structure 23. The design that the inner side of the cutting edge 111 is lower than the outer side allows the tool to automatically adjust its angle when inserted into the electrode hole, better fit the inner wall of the electrode hole, and achieve a self-guiding function.

[0048] In a preferred embodiment, such as Figure 3 As shown, the rake face 112 of the cutting edge 111 has an inclined chip removal surface 113. The inclined chip removal surface 113 can guide the chips generated during the cutting process to be smoothly removed from the cutting area, preventing chips from accumulating in the electrode hole, thereby avoiding secondary damage to the electrode hole wall caused by the chips.

[0049] In a preferred embodiment, such as Figure 3 As shown, the rake face 112 is further provided with a support surface 114 on the side near the adjacent tooth structure 11. The support surface 114 can provide additional support, enhance the stability of the tool in the electrode hole, and reduce vibration during the cleaning process. The support surface 114 helps maintain the correct angle between the cutting edge 111 and the electrode hole wall, improving cutting accuracy.

[0050] In a preferred embodiment, such as Figure 3 As shown, the distance between every two tooth-shaped structures 11 is 2cm.

[0051] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described utility model concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A cleaning tool for electrode holes in a reduction furnace, characterized in that, include: A cutting tooth structure, wherein the cutting tooth structure is arranged in a ring around the bottom end face of the rotating fixing part; A support rod, the lower end of which is fixedly connected to the rotating fixing part; The handheld part is connected to the upper end of the support rod.

2. The cleaning tool for electrode holes in a reduction furnace according to claim 1, characterized in that, The rotating fixing part includes a truncated cone, a fixing column, and a disc-shaped structure; the fixing column is fixed to the lower end of the support rod, the small end of the truncated cone is fixed to the lower end of the fixing column, and the large end of the truncated cone is fixed with a toothed structure.

3. The cleaning tool for electrode holes in a reduction furnace according to claim 2, characterized in that, The cutting tooth structure includes multiple tooth-shaped structures, and all the tooth-shaped structures are arranged in a circumferential array on the lower end face of the disc-shaped structure.

4. The cleaning tool for electrode holes in a reduction furnace according to claim 3, characterized in that, The bottom surface of the tooth-shaped structure is an annular sector. The tooth-shaped structure is smaller on one side than on the other side along the circumference of the disc-shaped structure. The high side of the tooth-shaped structure in the circumference is provided with a cutting edge.

5. The cleaning tool for electrode holes in a reduction furnace according to claim 4, characterized in that, The end of the cutting edge near the inner side of the disc-shaped structure is lower than the end of the cutting edge near the outer side of the disc-shaped structure.

6. The cleaning tool for electrode holes in a reduction furnace according to claim 5, characterized in that, The cutting edge has an inclined chip removal surface on its rake face.

7. The cleaning tool for electrode holes in a reduction furnace according to claim 6, characterized in that, The rake face is also provided with a support surface on the side adjacent to the tooth structure.

8. The cleaning tool for electrode holes in a reduction furnace according to claim 3, characterized in that, The distance between each two of the tooth-shaped structures is 2 cm.

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