Polycrystalline silicon magnetic substance adsorption device

Abstract

The utility model discloses a polycrystalline silicon magnetic substance adsorption device, which belongs to the technical field of polycrystalline silicon and comprises a fixed frame, a lifting mechanism and a magnetic adsorption mechanism. The lifting mechanism is mounted in the middle of the fixed frame, and the magnetic adsorption mechanism is detachably connected to the bottom of the lifting mechanism; the lifting mechanism comprises a lifting adjusting assembly and a lifting screw connected with the lifting adjusting assembly. The magnetic adsorption mechanism comprises a magnetic plate and a magnetic plate fixing frame, and the top of the magnetic plate fixing frame is detachably and fixedly connected with the bottom end of the lifting screw. According to the utility model, magnetic substances mixed in a polycrystalline silicon product can be effectively adsorbed, so that the product quality is improved; installation and adjustment are convenient, the magnetic adsorption mechanism is designed to be of a detachable structure, the size can be adaptively adjusted according to a production conveying line, and the device has the advantages of being simple in structure, low in cost, high in flexibility and the like.

Description

Technical Field

[0001] The utility model relates to an adsorption device for removing impurities, in particular to a polysilicon magnetic material adsorption device. Background Art

[0002] Finished polysilicon needs to go through multiple processes such as crushing and screening before packaging. During this process, there is a possibility of introducing external metal impurities, which will affect the quality of the final product. Therefore, a magnetic adsorption mechanism is generally installed on the polysilicon material conveyor belt to achieve the impurity removal effect.

[0003] For example, in the prior art, the Chinese utility model patent with publication number CN217527824U and announcement date October 4, 2022, entitled "A stone conveyor belt with a metal impurity removal device", discloses a stone conveyor belt with a metal impurity removal device, including a conveyor belt, a impurity removal mechanism arranged on the conveyor belt, the impurity removal mechanism includes a frame, a magnet block and a suction plate arranged on the frame, embedded blocks are provided on both sides of the magnet block, and slide grooves are provided on both sides of the suction plate. The suction plate is slidably connected to the magnetic block through the cooperation of the embedded block and the slide groove. The suction plate is a ferromagnetic material, and a driving member is provided between the magnet block and the suction plate. The driving member drives the suction plate to overlap or separate with the magnet block.

[0004] The metal removal device in the aforementioned patent utilizes a driver to move the suction plate and magnet block toward or away from each other, thereby automatically removing the attracted metal blocks. However, the control mechanism is complex, the cost is high, and the device cannot be adjusted to the size of the conveyor line. Utility Model Content

[0005] The utility model aims to solve the deficiencies of metal impurity removal devices in the prior art and proposes a polysilicon magnetic material adsorption device, which has the advantages of simple structure, low cost, high flexibility, etc.

[0006] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is as follows:

[0007] A polysilicon magnetic material adsorption device is characterized in that it includes a fixed frame, a lifting mechanism and a magnetic adsorption mechanism; the lifting mechanism is installed in the middle position of the fixed frame, and the magnetic adsorption mechanism is detachably connected to the bottom of the lifting mechanism; the lifting mechanism includes a lifting adjustment component and a lifting screw connected to the lifting adjustment component; the magnetic adsorption mechanism includes a magnetic plate and a magnetic plate fixing frame, and the top of the magnetic plate fixing frame is detachably fixed to the bottom end of the lifting screw.

[0008] Furthermore, the lifting mechanism as a whole is installed on the fixed frame through a fixing seat, and the fixing seat is arranged on the top of the fixed frame.

[0009] Furthermore, the lifting mechanism is a hand-cranked screw lift.

[0010] Furthermore, a threaded hole for connecting with the lifting screw is formed on the flange, and the magnetic plate fixing frame is connected with the bottom end of the lifting screw through the threaded hole on the flange.

[0011] Furthermore, it also includes a guide mechanism, which is fixedly connected to the magnetic adsorption mechanism to prevent it from rotating.

[0012] Furthermore, the guide mechanism includes a linear bearing and a stop rod; the linear bearing is arranged on a fixed seat, the stop rod is slidably connected in the linear bearing, its axial direction is parallel to the axial direction of the lifting screw, and the bottom of the stop rod is fixedly connected to the magnetic plate fixing frame.

[0013] Furthermore, a dust removal cover is provided on the fixed frame at a position away from the lifting mechanism, and the dust removal cover is connected to the dust removal fan.

[0014] The working principle of this utility model is as follows:

[0015] According to the size of the conveyor line, assemble a magnetic plate of appropriate size with the magnetic plate fixing frame, then fix it to the bottom end of the lifting screw through the flange on the top of the magnetic plate fixing frame, and pass the backstop rod through the linear bearing on the fixing seat. After installation, set up the fixing frame above the polysilicon material conveyor frame. By adjusting the lifting adjustment component in the lifting mechanism, the magnetic adsorption mechanism can be controlled to move linearly in the vertical direction with the lifting screw, thereby adjusting the distance between the magnetic plate and the conveyed material, thereby achieving the adsorption of metal impurities in the polysilicon material.

[0016] In summary, the utility model has the following advantages:

[0017] 1. The utility model can effectively absorb the magnetic substances mixed in the polysilicon product by setting a magnetic adsorption device to improve the product quality; it has the advantages of simple structure, low cost and high flexibility;

[0018] 2. The utility model is easy to install and adjust. The magnetic adsorption mechanism is designed as a detachable structure, and the size can be adjusted according to the adaptability of the production conveyor line;

[0019] 3. In the present invention, a guide mechanism is provided corresponding to the detachable magnetic adsorption mechanism, which can effectively avoid the problem of wire withdrawal caused by the rotation of the magnetic adsorption mechanism and the vibration of the equipment;

[0020] 4. In the present invention, a dust cover is further designed on the fixed frame, and the dust cover is connected to a dust removal fan to absorb excess silicon powder to slow down the adhesion of silicon powder affecting the strong magnetic adsorption effect, or the lifting screw is stuck due to the adhesion of silicon powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural side view of the utility model.

[0023] In the picture:

[0024] 1. Fixed frame, 2. Fixed seat, 3. Linear bearing, 4. Lifting screw, 5. Lifting adjustment assembly, 6. Magnetic plate fixing frame, 7. Magnetic plate, 8. Flange, 9. Backstop rod. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of this utility model, it should be noted that the terms "upper," "vertical," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] The utility model provides a polysilicon magnetic material adsorption device, such as Figure 1 and Figure 2 As shown, it includes a fixed frame 1, a lifting mechanism and a magnetic adsorption mechanism.

[0032] The fixed frame 1 serves as the mounting base for the adsorption device, spanning above the rack of the polysilicon production conveyor line and fixedly connected to the rack. The lifting mechanism is installed in the middle of the fixed frame 1, and the magnetic adsorption mechanism is detachably connected to the bottom of the lifting mechanism.

[0033] In this embodiment, the lifting mechanism is mounted on a fixed frame 1 via a mounting base 2, which is disposed on top of the fixed frame 1. The lifting mechanism includes a lifting adjustment assembly 5 and a lifting screw 4 connected to the lifting adjustment assembly 5. The lifting adjustment assembly 5 can be used to adjust the vertical height of the lifting screw 4, thereby adjusting the height of the magnetic attraction mechanism. Preferably, the lifting mechanism in this embodiment is a hand-cranked screw elevator. Controlling the rotation direction of the screw elevator's crank controls the vertical movement of the lifting screw 4, making adjustment simple and convenient.

[0034] In this embodiment, the magnetic attraction mechanism includes a magnetic plate 7 and a magnetic plate holder 6. The top of the magnetic plate holder 6 is detachably fixed to the bottom of the lifting screw 4. Specifically, a flange 8 is fixed to the top of the magnetic plate holder 6. This flange 8 has a threaded hole that mates with the lifting screw 4. The magnetic plate holder 6 is threadedly connected to the bottom of the lifting screw 4 through this flange 8.

[0035] To prevent the detachable magnetic attraction mechanism from rotating or vibrating and causing the wire to back out, the present invention further incorporates a guide mechanism. The guide mechanism comprises a linear bearing 3 and a backstop rod 9. The linear bearing 3 is fixedly mounted on the fixed base 2. The backstop rod 9 is slidably connected to the linear bearing 3, with its axis parallel to the axis of the lifting screw 4. The bottom of the backstop rod 9 is fixedly connected to the magnetic plate fixing frame 6.

[0036] The working principle of this utility model is as follows:

[0037] Assemble the magnetic plate 7 with the magnetic plate fixing frame 6, and then fix it to the bottom end of the lifting screw 4 through the flange 8 on the top of the magnetic plate fixing frame 6, and make the backstop rod 9 pass through the linear bearing 3 on the fixing seat 2 and fix it to the magnetic plate fixing frame 6. After installation, set up the fixed frame 1 above the polysilicon material conveyor frame. By adjusting the lifting adjustment component 5 in the lifting mechanism, the magnetic plate 7 can be controlled to move linearly in the vertical direction with the lifting screw 4, thereby adjusting the distance between the magnetic plate 7 and the conveyed material to achieve the adsorption of metal impurities in the polysilicon material.

[0038] Example 2

[0039] This embodiment proposes a polysilicon magnetic material adsorption device. On the basis of Example 1, further, in order to prevent the adhesion of silicon powder from affecting the strong magnetic adsorption effect, and at the same time prevent the lifting screw 4 from being stuck due to the adhesion of silicon powder, a dust removal cover can be designed on the fixed frame 1, avoiding the left and right sides of the middle position where the lifting mechanism is located, and the dust removal cover is connected to the dust removal fan to absorb the excess silicon powder.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A polysilicon magnetic material adsorption device, characterized in that: The invention comprises a fixed frame (1), a lifting mechanism and a magnetic adsorption mechanism; the lifting mechanism is installed in the middle of the fixed frame (1), and the magnetic adsorption mechanism is detachably connected to the bottom of the lifting mechanism; the lifting mechanism comprises a lifting adjustment component (5) and a lifting screw (4) connected to the lifting adjustment component (5), and the lifting mechanism is a hand-cranked screw lifter; the magnetic adsorption mechanism comprises a magnetic plate (7) and a magnetic plate fixing frame (6), and the top of the magnetic plate fixing frame (6) is detachably fixedly connected to the bottom end of the lifting screw (4); a flange (8) is fixedly provided on the top of the magnetic plate fixing frame (6), and a threaded hole is formed on the flange (8) for matching with the lifting screw (4), and the magnetic plate fixing frame (6) is threadedly connected to the bottom end of the lifting screw (4) through the flange (8).

2. A polysilicon magnetic material adsorption device according to claim 1, characterized in that: The lifting mechanism as a whole is mounted on the fixed frame (1) via a fixed seat (2), and the fixed seat (2) is arranged on the top of the fixed frame (1).

3. The polysilicon magnetic material adsorption device according to claim 2, characterized in that: It also includes a guide mechanism, which is fixedly connected to the magnetic adsorption mechanism to prevent it from rotating.

4. The polysilicon magnetic material adsorption device according to claim 3, characterized in that: The guide mechanism comprises a linear bearing (3) and a backstop rod (9); the linear bearing (3) is arranged on a fixed seat (2); the backstop rod (9) is slidably connected to the linear bearing (3); the axis direction of the backstop rod (9) is parallel to the axis direction of the lifting screw (4); and the bottom of the backstop rod (9) is fixedly connected to the magnetic plate fixing frame (6).

5. A polysilicon magnetic material adsorption device according to any one of claims 1 to 4, characterized in that: A dust removal hood is provided on the fixed frame (1) at a position away from the lifting mechanism, and the dust removal hood is connected to the dust removal fan.

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