Polycrystalline silicon reduction furnace

Abstract

The utility model relates to the technical field of polycrystalline silicon processing, in particular to a polycrystalline silicon reduction furnace which comprises a base, a reduction furnace body is fixedly mounted at the top of the base, a reduction furnace seal head is arranged above the reduction furnace body, and a movable connecting structure is arranged on the reduction furnace body. The movable connecting structure comprises a plurality of fixing frames symmetrically, evenly and fixedly installed on the surface of the reduction furnace body, supporting blocks are movably installed in the fixing frames, a plurality of springs are installed between the fixing frames and the supporting blocks, and a plurality of first meshing teeth are evenly and fixedly installed on one sides of the supporting blocks. And a plurality of fixing blocks are uniformly and fixedly mounted on the surface of the reduction furnace sealing head. Through the arrangement of the movable connecting structure, the reduction furnace body and the reduction furnace end socket are movably mounted, and the reduction furnace end socket can be detached from the top of the reduction furnace body, so that the reduction furnace end socket is convenient to maintain and replace, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of polycrystalline silicon reduction furnace, belong to polycrystalline silicon processing technical field. BACKGROUND

[0002] Polycrystalline silicon is a form of elemental silicon, and the polycrystalline silicon reduction furnace is the core equipment for producing the final product in the production process of polycrystalline silicon. By introducing trichlorosilane and high-purity hydrogen into the reduction furnace, high-purity silicon is reduced and attached to the electrode rod to form a silicon rod under the action of high temperature, realizing the reduction of polycrystalline silicon.

[0003] The polycrystalline silicon reduction furnace head is an important part of the reduction furnace, which plays a sealing and supporting role. However, the commonly used polycrystalline silicon reduction furnace has a fixed structure of the head and the furnace body, which makes it inconvenient to install and disassemble, and not easy to maintain and replace the reduction furnace head, with low practicality. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a polycrystalline silicon reduction furnace, which has a movable mounting structure between the reduction furnace body and the reduction furnace head, so that the reduction furnace head can be disassembled from the top of the reduction furnace body, facilitating maintenance and replacement of the reduction furnace head.

[0005] The utility model solves the above technical problems by adopting the following technical scheme:

[0006] A polycrystalline silicon reduction furnace comprises a base, a reduction furnace body fixedly installed on the top of the base, a reduction furnace head arranged above the reduction furnace body, a movable connection structure arranged on the reduction furnace body, the movable connection structure comprising a plurality of fixed frames symmetrically and uniformly fixedly installed on the surface of the reduction furnace body, a support block movably installed in the fixed frame, a plurality of springs installed between the fixed frame and the support block, a plurality of first engagement teeth uniformly fixedly installed on one side of the support block, a plurality of fixed blocks uniformly fixedly installed on the surface of the reduction furnace head, and a plurality of second engagement teeth uniformly fixedly installed on one side of the fixed block.

[0007] Further, the first engagement teeth and the second engagement teeth are triangular in shape.

[0008] Further, a sealing groove is formed in the top of the reduction furnace body, and a sealing ring is fixedly installed on the bottom of the reduction furnace head.

[0009] Further, a pull rod is arranged outside the support block, and anti-slip patterns are arranged on the surface of the pull rod.

[0010] Further, the inside of the base is fixedly installed with a plurality of support frames, the inside of the support frame is movably installed with a bidirectional screw rod, one side of the support frame is fixedly installed with a motor connected with the bidirectional screw rod, two moving blocks are symmetrically installed on the bidirectional screw rod, a moving wheel body is arranged below the support frame, and a support rod is movably installed between the two moving blocks and the moving wheel body.

[0011] Further, the top of the moving wheel body is fixedly installed with a limiting frame, and the base is fixedly installed with a plurality of limiting rods in sliding connection with the limiting frame.

[0012] Further, the bottom of the base is fixedly installed with a plurality of rubber pads.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] The present application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the present application;

[0016] Figure 2 It is a structure separation schematic view of the reduction furnace body and the reduction furnace head of the present application;

[0017] Figure 3 It is an inside structure sectional view of the fixed frame of the present application;

[0018] Figure 4 It is an inside structure side view of the base of the present application;

[0019] Figure 5 It is an inside structure bottom view of the support frame of the present application.

[0020] In the figure, 1, base; 2, reduction furnace body; 3, reduction furnace head; 4, movable connecting structure; 5, fixed frame; 6, supporting block; 7, spring; 8, first meshing tooth; 9, fixed block; 10, second meshing tooth; 11, sealing groove; 12, sealing ring; 13, pull rod; 14, supporting frame; 15, bidirectional screw rod; 16, motor; 17, moving block; 18, moving wheel body; 19, supporting rod; 20, limiting frame; 21, limiting rod; 22, rubber pad. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described below clearly and completely in connection with the drawings and specific embodiments.

[0022] As Figures 1-5 shown, the polycrystalline silicon reduction furnace provided by the embodiment comprises a base 1, the top of the base 1 is fixedly installed with a reduction furnace body 2, the upper portion of the reduction furnace body 2 is provided with a reduction furnace head 3, the reduction furnace body 2 is provided with a movable connecting structure 4, the movable connecting structure 4 comprises a plurality of fixed frames 5 which are symmetrically and uniformly fixedly installed on the surface of the reduction furnace body 2, the inside of each fixed frame 5 is movably installed with a supporting block 6, a plurality of springs 7 are installed between the fixed frame 5 and the supporting block 6, a plurality of first meshing teeth 8 are uniformly fixedly installed on one side of the supporting block 6, a plurality of fixed blocks 9 are uniformly fixedly installed on the surface of the reduction furnace head 3, and a plurality of second meshing teeth 10 are uniformly fixedly installed on one side of each fixed block 9.

[0023] In the embodiment, as Figure 1 shown, the shapes of the first meshing teeth 8 and the second meshing teeth 10 are all set as triangular shapes; the shapes of the first meshing teeth 8 and the second meshing teeth 10 are set as triangular shapes, so that one side of the first meshing teeth 8 and the second meshing teeth 10 is an inclined surface, and the inclined surface of the first meshing teeth 8 is set upward, and the inclined surface of the second meshing teeth 10 is set downward; under the action of the inclined surfaces, the second meshing teeth 10 can extrude and push the first meshing teeth 8 to move the supporting block 6 when being installed, so that the fixed block 9 is inserted into the inside of the fixed frame 5, and the first meshing teeth 8 and the second meshing teeth 10 are automatically meshed to complete the splicing of the reduction furnace body 2 and the reduction furnace head 3, so that the installation is more convenient.

[0024] The top of the reduction furnace body 2 is provided with a sealing groove 11, and the bottom of the reduction furnace head 3 is fixedly installed with a sealing ring 12; the outside of the supporting block 6 is provided with a pull rod 13, and the surface of the pull rod 13 is provided with anti-skid lines. Through the setting of the sealing groove 11 and the sealing ring 12, the sealing property of the connection portion of the reduction furnace body 2 and the reduction furnace head 3 can be increased; the setting of the pull rod 13 facilitates the outward pulling operation of the supporting block 6 when being disassembled.

[0025] In the embodiment, as Figure 1As shown, multiple support frames 14 are fixedly installed inside the base 1. A bidirectional screw 15 is movably installed inside the support frame 14. A motor 16 connected to the bidirectional screw 15 is fixedly installed on one side of the support frame 14. Two moving blocks 17 are symmetrically installed on the bidirectional screw 15. A moving wheel 18 is provided below the support frame 14. A support rod 19 is movably installed between the two moving blocks 17 and the moving wheel 18. A limit frame 20 is fixedly installed on the top of the moving wheel 18. Multiple limit rods 21 that are slidably connected to the limit frame 20 are fixedly installed on the base 1. Multiple rubber pads 22 are fixedly installed on the bottom of the base 1. The support frame 14, bidirectional screw 15, motor 16, moving block 17, moving wheel 18, support rod 19, limit frame 20, and limit rod 21 enable the base 1 to move, facilitating the movement of the reduction furnace body 2. Starting the motor 16 drives the bidirectional screw 15 to rotate, causing the two moving blocks 17 to move away from each other. After the two moving blocks 17 move, they can push the moving wheel 18 through the support rod 19, causing the moving wheel 18 to descend and extend outward from the bottom of the base 1, supporting the entire base 1. The moving wheel 18 allows the base 1 to move, facilitating the transfer of the reduction furnace body 2. Simultaneously, the limit frame 20 and limit rod 21 ensure that the moving wheel 18 descends smoothly, preventing wobbling. The rubber pad 22 reduces vibration when the bottom of the base 1 contacts the ground after the moving wheel 18 retracts into the base 1, preventing damage to the reduction furnace body 2 due to vibration.

[0026] like Figures 1-5 As shown, the working process of the polycrystalline silicon reduction furnace provided in this embodiment is as follows: The installation between the furnace body 2 and the furnace head 3 is made movable through the movable connection structure 4, allowing the furnace head 3 to be disassembled from the top of the furnace body 2. During installation and use, the furnace body 2 and the furnace head 3 are assembled by connecting multiple fixing blocks 9 and fixing frames 5. After the fixing blocks 9 and fixing frames 5 are connected, multiple first meshing teeth 8 and multiple second meshing teeth 10 on their adjacent sides mesh, and multiple springs 7 provide support to connect and fix the furnace body 2 and the furnace head 3. During disassembly, by pulling the fixing frame 5 outward, the first meshing teeth 8 disengage from the second meshing teeth 10, canceling the meshing fixation between them, and the furnace head 3 can be removed from the top of the furnace body 2, facilitating maintenance and replacement of the furnace head 3.

[0027] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein. Any modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A polycrystalline silicon reduction furnace, comprising a base (1), wherein a reduction furnace body (2) is fixedly mounted on the top of the base (1), and a reduction furnace head (3) is disposed above the reduction furnace body (2), characterized in that: The reduction furnace body (2) is provided with a movable connection structure (4). The movable connection structure (4) includes a plurality of fixed frames (5) that are symmetrically and uniformly fixedly installed on the surface of the reduction furnace body (2). A support block (6) is movably installed inside the fixed frame (5). A plurality of springs (7) are installed between the fixed frame (5) and the support block (6). A plurality of first meshing teeth (8) are uniformly fixedly installed on one side of the support block (6). A plurality of fixed blocks (9) are uniformly fixedly installed on the surface of the reduction furnace head (3). A plurality of second meshing teeth (10) are uniformly fixedly installed on one side of the fixed block (9).

2. The polycrystalline silicon reduction furnace according to claim 1, characterized in that: The first meshing tooth (8) and the second meshing tooth (10) are both triangular in shape.

3. The polycrystalline silicon reduction furnace according to claim 1, characterized in that: The top of the reduction furnace body (2) is provided with a sealing groove (11), and the bottom of the reduction furnace head (3) is fixedly installed with a sealing ring (12).

4. The polycrystalline silicon reduction furnace according to claim 1, characterized in that: A tie rod (13) is provided on the outside of the support block (6).

5. The polycrystalline silicon reduction furnace according to claim 1, characterized in that: Multiple support frames (14) are fixedly installed inside the base (1). A bidirectional screw (15) is movably installed inside the support frame (14). A motor (16) connected to the bidirectional screw (15) is fixedly installed on one side of the support frame (14). Two moving blocks (17) are symmetrically installed on the bidirectional screw (15). A moving wheel (18) is provided below the support frame (14). A support rod (19) is movably installed between the two moving blocks (17) and the moving wheel (18).

6. The polycrystalline silicon reduction furnace according to claim 5, characterized in that: A limit frame (20) is fixedly installed on the top of the movable wheel (18), and a plurality of limit rods (21) that are slidably connected to the limit frame (20) are fixedly installed on the base (1).

7. The polycrystalline silicon reduction furnace according to claim 1, characterized in that: Multiple rubber pads (22) are fixedly installed on the bottom of the base (1).

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