Screen plate with replaceable screen cloth

Abstract

The utility model discloses a screen plate with a replaceable screen mesh, which relates to the technical field of vibrating screens and comprises a screen plate frame, a support frame, the screen mesh and a plurality of pressing strips. A supporting frame is fixed in the middle of the screen plate frame, a plurality of grids are formed between the screen plate frame and the supporting frame, a plurality of connecting plates are fixed to the edge of the upper surface of one side of the screen and inserted into the grids, the screen is located on the upper surface of the supporting frame, and the upper surface of the screen and the upper surface of the screen plate frame are coplanar. The end of the periphery of the screen is connected with the inner wall of the periphery of the screen plate frame in an abutting mode, and the screen plate frame, the connecting plates and the pressing strips are fixedly connected through bolts. The utility model has the advantages that only the screen needs to be replaced when the screen is damaged, and the cost and time for replacing the whole screen plate are reduced and shortened through the disassembly and assembly of the bolts; the screen is made of PU materials and has the advantages of being high in density, strength, toughness and abrasion resistance and the like, impact and abrasion of polycrystalline silicon to the screen can be reduced, and the service life of the screen is prolonged.

Description

Technical fields:

[0001] This utility model relates to the field of vibrating screen technology, specifically a screen plate with replaceable screen mesh. Background technology:

[0002] Polycrystalline silicon is a form of elemental silicon, widely used as a basic material in semiconductor manufacturing. During the production process, it needs to be sieved to meet production requirements.

[0003] During the screening process, the screen mesh is damaged after repeated collisions and friction with polycrystalline silicon, which affects the screening effect and accelerates the damage of the screen mesh. Therefore, the screen mesh needs to be replaced regularly. However, the current screen mesh replacement method is mostly to replace the entire screen plate, which is costly. Therefore, there is a need to provide a screen plate with replaceable screen mesh. Utility Model Content:

[0004] The purpose of this invention is to provide a screen plate with replaceable screens to solve the problems mentioned in the background art.

[0005] This utility model is implemented by the following technical solution:

[0006] A replaceable screen plate includes a screen plate frame, a support frame, a screen, and multiple pressure strips. The support frame is fixed in the middle of the screen plate frame, and multiple squares are formed between the screen plate frame and the support frame. Multiple connecting plates are fixed to the upper edge of one side of the screen. The connecting plates are inserted into the squares. The screen is located on the upper surface of the support frame, and the upper surface of the screen is coplanar with the upper surface of the screen plate frame. The four ends of the screen abut against the four inner walls of the screen plate frame. The screen plate frame, connecting plates, and pressure strips are fixedly connected by bolts.

[0007] Preferably, the inner walls of the screen frame are provided with multiple countersunk holes, the connecting plate is provided with through holes corresponding to the countersunk holes, the pressure strip is embedded with nuts corresponding to the through holes, and the bolts are threaded through the countersunk holes, through holes and nuts in sequence.

[0008] Preferably, both the sieve frame and the support frame are embedded with steel parts of the same shape.

[0009] Preferably, the support frame structure is in the shape of a "well".

[0010] Preferably, the screen is made of PU material.

[0011] The advantages of this utility model are: when the screen is damaged, only the screen needs to be replaced; by removing and installing bolts, the cost and time of replacing the entire screen plate are reduced; the screen is made of PU material, which has the characteristics of high density, high strength, high toughness and high wear resistance, which can reduce the impact and wear of polycrystalline silicon on the screen and extend the service life of the screen. Attached image description:

[0012] Figure 1 This is an exploded view of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model;

[0014] Figure 3 for Figure 2 A bottom view;

[0015] Figure 4 for Figure 3 Sectional view at point A in the middle;

[0016] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0017] Figure 6 This is a partial structural diagram;

[0018] Figure 7 This is a schematic diagram of the sieve structure.

[0019] In the diagram: 1. Screen frame, 1.1. Countersunk hole, 2. Support frame, 3. Screen mesh, 3.1. Connecting plate, 3.11. Through hole, 4. Pressure strip, 4.1. Nut, 5. Bolt, 6. Steel part, 12. Grid. Detailed implementation method:

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-7 This utility model provides a technical solution for a screen plate with replaceable screens:

[0022] A replaceable screen plate includes a screen plate frame 1, a support frame 2, a screen 3, and multiple pressure strips 4; the support frame 2 is fixed in the middle of the screen plate frame 1, the support frame 2 has a "well" shaped structure, and multiple squares 12 are formed between the screen plate frame 1 and the support frame 2; multiple connecting plates 3.1 are fixed on the upper edge of one side of the screen 3, and the connecting plates 3.1 are inserted into the squares 12; the screen 3 is made of PU material, which has the characteristics of high density, high strength, high toughness, and high wear resistance. The screen 3 is located on the upper surface of the support frame 2. The upper surface of the screen 3 is coplanar with the upper surface of the screen plate frame 1. The four ends of the screen 3 abut against the inner walls of the screen plate frame 1. Multiple countersunk holes 1.1 are provided on the inner walls of the screen plate frame 1. The connecting plate 3.1 has through holes 3.11 corresponding to the countersunk holes 1.1. Nuts 4.1 corresponding to the through holes 3.11 are embedded in the pressure strip 4. Bolts 5 pass through the countersunk holes 1.1, through holes 3.11 and nuts 4.1 in sequence and are threaded together to fix the screen 3. The screen 4 can be easily disassembled and replaced by the bolts 5, reducing the cost and time of overall replacement and eliminating the need to replace the entire screen plate, thus reducing costs.

[0023] Both the sieve frame 1 and the support frame 2 have steel parts 6 of the same shape embedded inside.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sieve plate with replaceable sieve mesh, characterized in that: The device includes a sieve frame (1), a support frame (2), a sieve (3), and multiple pressure strips (4). The support frame (2) is fixed in the middle of the sieve frame (1), and multiple squares (12) are formed between the sieve frame (1) and the support frame (2). Multiple connecting plates (3.1) are fixed on the upper edge of one side of the sieve (3). The connecting plates (3.1) are inserted into the squares (12). The sieve (3) is located on the upper surface of the support frame (2). The upper surface of the sieve (3) is coplanar with the upper surface of the sieve frame (1). The four ends of the sieve (3) abut against the four inner walls of the sieve frame (1). The sieve frame (1), the connecting plates (3.1), and the pressure strips (4) are fixedly connected by bolts (5).

2. The sieve plate with replaceable screen according to claim 1, characterized in that: The screen frame (1) has multiple countersunk holes (1.1) on its inner walls. The connecting plate (3.1) has through holes (3.11) corresponding to the countersunk holes (1.1). The pressure strip (4) has a nut (4.1) corresponding to the through hole (3.11) embedded in it. The bolt (5) passes through the countersunk hole (1.1), the through hole (3.11) and the nut (4.1) in sequence and is threaded.

3. The sieve plate with replaceable screen according to claim 2, characterized in that: Both the sieve frame (1) and the support frame (2) are embedded with steel parts (6) of the same shape.

4. The sieve plate with replaceable screen according to claim 1, characterized in that: The support frame (2) has a "well" shaped structure.

5. A sieve plate with replaceable screen according to claim 1, characterized in that: The screen (3) is made of PU material.

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