Cleaning device for sight glass hole of polycrystalline silicon reduction furnace

Abstract

The utility model relates to the technical field of polycrystalline silicon, in particular to a sight glass hole cleaning device for a polycrystalline silicon reduction furnace. The device comprises a bracket (1), a cleaning sheet I (3), a cleaning block (4), a bracket bottom (5), a fixing bolt (7) and a transmission shaft (8), a cleaning sheet I (3) is arranged on the outer side of the barrel-shaped bracket (1); the outer side of a support bottom (5) at one end of the barrel-shaped support (1) is connected with the cleaning block (4) through the fixing bolt (7), and the transmission shaft (8) is fixedly arranged at the other end of the support (1). The device has the advantages of being simple in structure and easy and convenient to operate. The cleaning efficiency is high. The cleaning quality is high.

Description

Technical Field

[0001] This utility model relates to the field of polysilicon technology, specifically to a device for cleaning the sight glass hole of a polysilicon reduction furnace. Background Technology

[0002] The sight glass of the polycrystalline silicon reduction furnace is an important accessory and a crucial component of the reduction furnace in the modified Siemens process. During furnace operation, it serves as a window for observing the internal conditions and measuring temperature.

[0003] During the operation of a polysilicon reduction furnace, a certain amount of silicon powder will accumulate on the sight glass and the walls of the sight glass aperture. After each polysilicon rod exits the furnace, the sight glass and its aperture must be cleaned. Generally, after mechanically cleaning the bell jar, the sight glass lens and aperture walls must be manually cleaned. Using ordinary tools makes cleaning difficult, and the lens and aperture walls are prone to incomplete cleaning. If the furnace is not properly cleaned before production begins, inaccurate temperature measurements will occur, making it impossible to observe the furnace's internal conditions. Furthermore, moisture trapped in the deposits on the aperture walls can easily contaminate the product. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a polysilicon reduction furnace sight glass hole cleaning device that is simple in structure, easy to operate, highly efficient and of high quality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A device for cleaning the sight glass hole of a polycrystalline silicon reduction furnace, the device comprising: a bracket 1, a cleaning plate 13, a cleaning block 4, a bracket base 5, fixing bolts 7, and a drive shaft 8;

[0007] The bracket 1 is a barrel-shaped bracket with a cleaning plate I3 on ​​its outer side; the cleaning block 4 is connected to the outer side of the bracket bottom 5 at one end of the bracket 1 by a fixing bolt 7, and a drive shaft 8 is fixedly installed at the other end of the bracket 1.

[0008] Furthermore, the device also includes an adjusting plate 2 and an adjusting bolt 6;

[0009] The adjusting plate 2 is set between the bracket 1 and the cleaning plate I3. One end of the adjusting bolt 6 is fixedly connected to the adjusting plate 2, and the other end passes through the bracket 1 and is connected by a nut.

[0010] Furthermore, the device also includes a cone 11, a buffer layer 12, and a cleaning plate II 13;

[0011] The cone barrel 11 is connected to the opposite end of the support bottom 5 of the bracket 1 near the cone apex; a drive shaft 8 is fixedly installed at the bottom of the cone barrel 11.

[0012] A buffer layer 12 and a cleaning plate II 13 are sequentially arranged on the outer wall of the cone 11.

[0013] Furthermore, the buffer layer 12 is detachably connected to the cone barrel 11.

[0014] Furthermore, the cleaning sheet II13 is detachably connected to the buffer layer 12.

[0015] Furthermore, the side wall of the bracket 1 is provided with several operation windows 14;

[0016] The operation window 14 is symmetrically arranged along the central axis of the barrel-shaped bracket 1.

[0017] Furthermore, the cleaning plate I3 is detachably connected to the bracket 1;

[0018] The cleaning pad I3 is made of sandpaper, nylon fiber, or wool felt.

[0019] Furthermore, the cleaning block 4 is made of wool felt or non-woven fabric.

[0020] Furthermore, an elastic element is provided between the adjusting plate 2 and the cleaning piece I3.

[0021] This invention provides a cleaning device for the sight glass hole of a polycrystalline silicon reduction furnace. A drive shaft connects to a power unit, which rotates the cleaning device, causing the cleaning blocks on the hole wall to rub against the hole wall, thus quickly cleaning the deposits adhering to the sight glass hole wall. During the cleaning process, pure water is used for rinsing to remove the silicon powder rubbed off.

[0022] Cleaning pad I cleans the lens wall thoroughly and rinses with pure water. Then, dip the cleaning block in lens cleaning solution (diluted sodium hydroxide solution), adhere the cleaning block to the lens, and quickly clean it. Rinse with pure water and replace with a new cleaning block to remove water stains. The cleaning block can be made of materials such as wool felt or non-woven fabric.

[0023] This utility model provides an automatic cleaning device for the sight glass hole of a polycrystalline silicon reduction furnace. The distance between the adjusting plate and the support can be adjusted by adjusting the adjusting bolt to accommodate sight glass holes of different diameters. It is suitable for the sight glass structure and size of different furnace types (such as 24 pairs of rods, 32 pairs of rods, 48 ​​pairs of rods, 72 pairs of rods, etc.).

[0024] Compared with the prior art, the advantages of the polycrystalline silicon reduction furnace sight glass hole cleaning device provided by this utility model are:

[0025] (1) Simple structure and easy to operate.

[0026] (2) High cleaning efficiency.

[0027] (3) High cleaning quality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a polycrystalline silicon reduction furnace sight glass hole cleaning device provided by this utility model.

[0029] Figure 2 This is a three-dimensional structural diagram of a polycrystalline silicon reduction furnace sight glass hole cleaning device provided by this utility model.

[0030] Figure 3 This is a schematic diagram showing the disassembled structure of a polycrystalline silicon reduction furnace sight glass hole cleaning device provided by this utility model.

[0031] In the diagram: 1 is the support wall, 2 is the adjusting plate, 3 is the cleaning plate I, 4 is the cleaning block, 5 is the support bottom, 6 is the adjusting bolt, 7 is the fixing bolt, 8 is the drive shaft, 11 is the cone wall, 12 is the buffer layer, 13 is the cleaning plate II, and 14 is the operation window. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the following embodiments provide a more detailed description of this utility model. These embodiments are only used to illustrate the utility model and are not intended to limit the scope of this utility model.

[0033] A device for cleaning the sight glass hole of a polycrystalline silicon reduction furnace, the device comprising: a bracket 1, a cleaning plate 13, a cleaning block 4, a bracket base 5, fixing bolts 7, and a drive shaft 8;

[0034] The bracket 1 is a barrel-shaped bracket with a cleaning plate I3 on ​​its outer side; the cleaning block 4 is connected to the outer side of the bracket bottom 5 at one end of the bracket 1 by a fixing bolt 7, and a drive shaft 8 is fixedly installed at the other end of the bracket 1.

[0035] Furthermore, the device also includes an adjusting plate 2 and an adjusting bolt 6;

[0036] The adjusting plate 2 is set between the bracket 1 and the cleaning plate I3. One end of the adjusting bolt 6 is fixedly connected to the adjusting plate 2, and the other end passes through the bracket 1 and is connected by a nut.

[0037] Furthermore, the device also includes a cone 11, a buffer layer 12, and a cleaning plate II 13;

[0038] The cone barrel 11 is connected to the opposite end of the support bottom 5 of the bracket 1 near the cone apex; a drive shaft 8 is fixedly installed at the bottom of the cone barrel 11.

[0039] A buffer layer 12 and a cleaning plate II 13 are sequentially arranged on the outer wall of the cone 11.

[0040] Furthermore, the buffer layer 12 is detachably connected to the cone barrel 11.

[0041] Furthermore, the cleaning sheet II13 is detachably connected to the buffer layer 12.

[0042] Furthermore, the side wall of the bracket 1 is provided with several operation windows 14;

[0043] The operation window 14 is symmetrically arranged along the central axis of the barrel-shaped bracket 1.

[0044] Furthermore, the cleaning plate I3 is detachably connected to the bracket 1;

[0045] The cleaning pad I3 is made of sandpaper, nylon fiber, or wool felt.

[0046] Furthermore, the cleaning block 4 is made of wool felt or non-woven fabric.

[0047] Furthermore, an elastic element is provided between the adjusting plate 2 and the cleaning piece I3. Example

[0048] A device for cleaning the sight glass hole of a polycrystalline silicon reduction furnace, the device comprising: a bracket 1, a cleaning plate I3, a cleaning block 4, a bracket base 5, fixing bolts 7, and a drive shaft 8; the bracket 1 is a barrel-shaped bracket with the cleaning plate I3 disposed on its outer side; the cleaning block 4 is connected to the outer side of the bracket base 5 at one end of the bracket 1 by fixing bolts 7, and the drive shaft 8 is fixedly disposed at the other end of the bracket 1.

[0049] The support 1 has several operating windows 14 on its side wall; the operating windows 14 are symmetrically arranged along the central axis of the barrel-shaped support 1. The cleaning plate I3 is detachably connected to the support 1; the cleaning plate I3 is made of nylon fiber. The cleaning block 4 is made of wool felt. An elastic element is provided between the adjusting plate 2 and the cleaning plate I3. Example

[0050] A device for cleaning the sight glass hole of a polycrystalline silicon reduction furnace, the device comprising: a bracket 1, a cleaning plate I3, a cleaning block 4, a bracket base 5, fixing bolts 7, and a drive shaft 8; the bracket 1 is a barrel-shaped bracket with the cleaning plate I3 disposed on its outer side; the cleaning block 4 is connected to the outer side of the bracket base 5 at one end of the bracket 1 by fixing bolts 7, and the drive shaft 8 is fixedly disposed at the other end of the bracket 1.

[0051] The device further includes an adjusting plate 2 and an adjusting bolt 6; the adjusting plate 2 is disposed between the support 1 and the cleaning plate I3, and one end of the adjusting bolt 6 is fixedly connected to the adjusting plate 2, while the other end passes through the support 1 and is connected by a nut. The device also includes a conical barrel 11, a buffer layer 12, and a cleaning plate II13; the end of the conical barrel 11 near its apex is connected to the opposite end of the support base 5 of the support 1; a drive shaft 8 is fixedly disposed at the bottom of the conical barrel 11; the buffer layer 12 and the cleaning plate II13 are sequentially disposed on the outer wall of the conical barrel 11. The buffer layer 12 is detachably connected to the conical barrel 11. The cleaning plate II13 is detachably connected to the buffer layer 12.

[0052] The support 1 has several operating windows 14 on its side wall; the operating windows 14 are symmetrically arranged along the central axis of the barrel-shaped support 1. The cleaning plate I3 is detachably connected to the support 1; the cleaning plate I3 is made of sandpaper. The cleaning block 4 is made of non-woven fabric. An elastic element is provided between the adjusting plate 2 and the cleaning plate I3.

[0053] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0054] It should also be noted that the various specific technical features and steps described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0055] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A polysilicon reduction furnace sight hole cleaning device, characterized by, The device comprises a bracket (1), a cleaning sheet I (3), a cleaning block (4), a bracket bottom (5), a fixing bolt (7) and a transmission shaft (8). The bracket (1) is a barrel-shaped bracket, and the outer side of the bracket is provided with the cleaning sheet I (3); the outer side of the bracket bottom (5) at one end of the bracket (1) is connected with the cleaning block (4) by the fixing bolt (7), and the other end of the bracket (1) is fixedly provided with the transmission shaft (8).

2. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 1, characterized in that: The device further comprises an adjusting plate (2) and an adjusting bolt (6). The adjusting plate (2) is arranged between the bracket (1) and the cleaning sheet I (3), one end of the adjusting bolt (6) is fixedly connected with the adjusting plate (2), and the other end of the adjusting bolt (6) penetrates through the bracket (1) and is connected by a nut.

3. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 1, characterized in that: The device further comprises a conical barrel (11), a buffer layer (12) and a cleaning sheet II (13). The conical barrel (11) is connected with the opposite end of the bracket bottom (5) of the bracket (1) at a position close to the top of the conical barrel (11); and the bottom of the conical barrel (11) is fixedly provided with the transmission shaft (8). The outer wall of the conical barrel (11) is sequentially provided with the buffer layer (12) and the cleaning sheet II (13).

4. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 3, characterized in that: The buffer layer (12) is detachably connected with the conical barrel (11).

5. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 3, characterized in that: The cleaning sheet II (13) is detachably connected with the buffer layer (12).

6. The apparatus according to claim 1 or 3, wherein: The side wall of the bracket (1) is provided with a plurality of operation windows (14). The operation windows (14) are arranged along the central axis of the barrel-shaped bracket (1) in an axisymmetric manner.

7. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 1, characterized in that: The cleaning sheet I (3) is detachably connected with the bracket (1). The material of the cleaning sheet I (3) is sandpaper, nylon fiber or wool felt.

8. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 1, characterized in that: The material of the cleaning block (4) is wool felt or non-woven fabric.

9. A polycrystalline silicon reduction furnace sight hole cleaning device according to claim 2, characterized in that: An elastic member is arranged between the adjusting plate (2) and the cleaning sheet I (3). An elastic member is arranged between the adjusting plate (2) and the cleaning sheet I (3).

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