Screening device for industrial silicon ingot production and use method

Abstract

The invention discloses a screening device based on industrial silicon ingot production and a using method, and relates to the technical field of industrial silicon ingot production, in particular to the screening device based on industrial silicon ingot production and the using method, the screening device comprises a screening assembly, and the top of the screening assembly is sequentially provided with a dust collection assembly and a feeding assembly from left to right; a screen assembly is installed on the inner wall of the screening assembly, and fixing assemblies are installed at the front end and the rear end of the screening assembly correspondingly. The dust collection assembly comprises a first L-shaped plate and a connecting rod. According to the screening device for industrial silicon ingot production, when the screening device is used, the discharging speed of the feeding hopper to the screen can be adjusted, the use applicability of the screening device is improved, raw material dust raised due to vibration can be sucked and recycled, the situation that the dust is raised to enter air and pollutes the air is avoided, and the screening device is suitable for industrial production. And the screens with different apertures can be quickly replaced according to screening requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial silicon ingot production, and in particular to a screening device for industrial silicon ingot production and a use method thereof. Background Art

[0002] Industrial silicon ingots refer to silicon single crystals used to manufacture semiconductor materials. Industrial silicon ingots are produced by melting silicon materials and passing them through a series of complex process steps to finally produce high-purity silicon single crystal blocks. Industrial silicon ingots usually have a high degree of purity and crystal quality to ensure that they can meet the strict requirements in the semiconductor manufacturing process.

[0003] Screening devices are required in the production of industrial silicon ingots to ensure that impurities and unqualified products in the production process can be effectively screened out to ensure the quality and purity of the final product.

[0004] But currently:

[0005] 1. The feed opening of the feed hopper of the ordinary screening device is fixed in size and has poor applicability. When feeding, the raw materials are easily accumulated on the screening device due to the large feed opening, which affects the screening work;

[0006] 2. When screening raw materials, ordinary screening devices are likely to cause raw material dust to be raised, and the dust is discharged into the air, which will cause air pollution and waste of raw materials;

[0007] 3. The screen of an ordinary screening device is generally installed through multiple screws and devices. When it is necessary to replace the screen with a different diameter, multiple screws need to be removed, which is time-consuming and labor-intensive, and cannot meet people's usage needs well. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a screening device and a method for use for industrial silicon ingot production, which solves the problems raised in the above background technology, such as the feed port size of the feed hopper cannot be adjusted, the screening device easily causes raw material dust to be raised, causing air pollution, and it is inconvenient to replace screens of different diameters.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: based on a screening device and a method of use for industrial silicon ingot production, including a screening component, the top of which is successively equipped with a dust collection component and a feeding component from left to right, the inner wall of which is equipped with a screen assembly, and fixing components are installed at both the front and rear ends of the screening component.

[0010] The dust suction assembly includes a first L-shaped plate and a connecting rod, a dust suction fan is installed on the top of the connecting rod, a dust bag is installed on the bottom of the dust suction fan by screws, a dust suction hood is installed at the front end of the first L-shaped plate, a first elastic rubber frame is installed at the bottom of the dust suction hood, a three-way pipe is installed on the top of the dust suction hood, and a butt pipe is installed on the top of the three-way pipe.

[0011] The feeding assembly includes a second L-shaped plate, a feeding hopper is installed at the rear end of the second L-shaped plate, inclined guide plates are installed on both sides of the feeding hopper, a rapper and a fixed plate are installed at the front end of the feeding hopper in sequence from top to bottom, a sliding rod is installed on one side of the fixed plate, a motor is installed on the other side of the fixed plate, a bidirectional screw is installed at the output end of the motor, a threaded slider is threadedly installed on the outer wall of the bidirectional screw, a rectangular movable rod is installed on the top of the threaded slider, a rectangular movable tube is slidably installed on the outer wall of the rectangular movable rod, a fixed rod is installed on one side of the rectangular movable tube, a material baffle plate is installed on the rear end of the fixed rod, and a second elastic rubber frame is installed at the bottom of the feeding hopper.

[0012] The fixing assembly includes a first U-shaped frame, a first plug rod is slidably installed on the front end of the first U-shaped frame, a first lever is installed on the front end of the first plug rod, a first limit block is installed on the outer wall of the first plug rod, a second spring is installed on the front end of the first limit block, a second U-shaped frame is installed on the front end of the first U-shaped frame, a second plug rod is slidably installed on one side of the second U-shaped frame, a second lever is installed on one side of the second plug rod, a second limit block is installed on the outer wall of the second plug rod, and a third spring is installed on one side of the second limit block.

[0013] Optionally, the screening assembly includes a base plate, a plurality of seismic isolation pads are installed on the top of the base plate, a support plate is installed on the top of the seismic isolation pads, a plurality of first springs are installed on the top of the support plate, a shell is installed on the top of the first springs, a first guide plate and a second guide plate are installed on one side of the shell in sequence from top to bottom, a vibration motor is installed on the bottom of the shell, a first L-shaped plate and a connecting rod are installed on the top of the base plate, a second L-shaped plate is installed on the top of the base plate, a first U-shaped frame is installed at the front end of the shell, and the vibration motors are symmetrically distributed about the vertical center line of the shell.

[0014] Optionally, the plurality of seismic isolation pads are evenly and equidistantly distributed on the top of the base plate, and the plurality of first springs are evenly and equidistantly distributed on the top of the support plate, and the first springs are symmetrically distributed about the vertical center line of the support plate.

[0015] Optionally, the screen assembly includes a mounting frame installed on the inner wall of the shell, the inner wall of the mounting frame is installed with a screen, and the inner wall of the shell is provided with a slide groove whose internal dimension structure is consistent with the external dimension structure of the mounting frame, and the mounting frame forms a sliding mechanism with the shell through the slide groove.

[0016] Optionally, there are four first L-shaped plates in total, and the first L-shaped plates are symmetrically distributed about the vertical center line of the dust hood, and one end of the butt tube is connected to the dust suction fan, and the bottom of the first elastic rubber frame is connected to the top of the shell.

[0017] Optionally, the second L-shaped plate and the rapper are symmetrically distributed about the vertical center line of the feed hopper, and the bottom of the second elastic rubber frame is connected to the top of the shell.

[0018] Optionally, a material baffle plate is slidably installed on both sides of the feed hopper, and the threaded slider and the slide rod constitute a sliding mechanism, and the threaded slider and the motor constitute a spiral transmission mechanism through a bidirectional screw, the external dimension structure of the rectangular movable rod is consistent with the internal dimension structure of the rectangular movable tube, and the fixed plate, threaded slider, rectangular movable rod, rectangular movable tube, fixed rod and material baffle plate are symmetrically distributed about the vertical center line of the feed hopper.

[0019] Optionally, the front and rear ends of the installation frame and the shell are provided with rectangular slots whose internal dimension structure is consistent with the external dimension structure of the first insertion rod, and the first limit block forms an elastic mechanism with the first U-shaped frame through the second spring.

[0020] Optionally, two rectangular slots whose internal dimension structures are consistent with the external dimension structures of the second plug rod are sequentially opened on one side of the first plug rod from front to back, and the second limit block forms an elastic mechanism with the second U-shaped frame through a third spring.

[0021] Based on the screening device for industrial silicon ingot production and the use method, the screening device for industrial silicon ingot production described in any one of the above items is used, and the specific steps are as follows:

[0022] Step 1: Start the motor, drive the two sets of threaded sliders, rectangular movable rods, rectangular movable tubes, fixed rods and baffle plates to move through the bidirectional screw, adjust the distance between the two baffle plates, and adjust the distance between the two baffle plates to a suitable width;

[0023] Step 2: Add raw materials into the feed hopper, then start two vibrators to vibrate the feed hopper, and at the same time start two vibration motors at the bottom of the shell to drive the shell and the screen to vibrate. The screen screens the raw materials, and the raw materials on the screen are discharged through the first guide plate, and the raw materials at the bottom of the inner wall of the shell are discharged through the second guide plate;

[0024] Step 3: When the vibration motor is started, the dust suction fan is started. The dust suction fan absorbs the raw material dust raised by the vibration through the butt joint, the three-way pipe and the dust suction hood, and sends the raw material dust into the dust removal bag;

[0025] Step 4: When there is a lot of raw material dust collected in the dust bag, stop the screening work, remove the screws that install the dust collection fan and the dust collection bag, remove the dust collection bag, and install the new dust collection bag and the dust collection fan with the screws;

[0026] Step 5: When replacing a screen with a different diameter, pull the second lever to pull the second rod out of the rectangular slot at the front end of the first rod, then pull the first lever to pull the first rod out of the rectangular slot on the mounting frame, then release the second lever, and the second rod is inserted into the rectangular slot at the rear end of the first rod under the elastic force of the third spring;

[0027] Step six: then pull out the screen assembly from the inner wall slide groove of the shell, then insert the new screen assembly into the inner wall slide groove of the shell, then pull the second lever, the second rod is pulled out from the rectangular slot at the rear end of the first rod, the first rod is subjected to the elastic force of the second spring, inserted into the rectangular slots on the mounting frame and the shell, fix the screen assembly, then release the second lever, the second rod is subjected to the elastic force of the third spring, inserted into the rectangular slot at the front end of the first rod.

[0028] The present invention provides a method for using a screening device for industrial silicon ingot production, which has the following beneficial effects:

[0029] The screening device and use method for industrial silicon ingot production use a feed assembly to start a motor, and use a bidirectional screw to drive two groups of threaded sliders, a rectangular movable rod, a rectangular movable tube, a fixed rod and a baffle plate to move. The spacing between the two baffle plates can be adjusted according to needs, so that the speed at which the feed hopper discharges materials onto the screen can be adjusted, thereby improving the applicability of the screening device and preventing the material from accumulating on the screen due to excessive discharge speed.

[0030] The screening device and use method based on industrial silicon ingot production use a vibrator to start two vibrators, which vibrate the feed hopper to prevent the raw materials from being blocked or retained in the feed hopper when the feed hopper is used for discharging, so that the feed hopper can discharge the materials smoothly, and it can be avoided that the screening device cannot work properly due to the inability to discharge the materials normally onto the screen.

[0031] The screening device and the use method for industrial silicon ingot production start the dust suction fan through the dust suction component. The dust suction fan absorbs the raw material dust raised by vibration through the docking tube, the three-way tube and the dust suction hood, and sends the raw material dust into the dust removal bag. The screws for installing the dust suction fan and the dust removal bag can be disassembled, the dust removal bag can be removed, and the raw material dust can be recovered, so that the dust can be prevented from being raised into the air to pollute the air and affect the health of the staff. At the same time, the raw material dust is collected to avoid the waste of raw materials.

[0032] The screening device and use method for industrial silicon ingot production use a fixing assembly. When replacing screens of different diameters, the second lever and the first lever are pulled to extract the first plug-in rod from the mounting frame. The second lever is then released and the second plug-in rod is inserted into a rectangular slot on the first plug-in rod, which is convenient for subsequent replacement of filters of different diameters. After the replacement of the filter is completed, the second lever is pulled and the first plug-in rod is subjected to the elastic force of the second spring and inserted into the rectangular slot on the mounting frame to fix the screen assembly, which is convenient for rapid removal and installation of the filter. When replacing the filter, there is no need to remove the screws, which reduces the working process of replacing the filter and improves the working efficiency of replacing the filter.

[0033] The screening device and use method based on industrial silicon ingot production, through the first spring and the isolation pad, when the shell is driven to vibrate by the vibration motor, the first springs play a buffering role, and the isolation pads absorb the vibration, which can reduce the impact caused by the vibration and prevent long-term vibration impact from causing the parts of the screening device to loosen and be damaged, etc., affecting the service life of the screening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the main structure of the invention;

[0035] Figure 2 It is a schematic diagram of the structure of the screening component in the invention;

[0036] Figure 3 It is a bottom view structural diagram of the screening component in the invention;

[0037] Figure 4 It is a schematic diagram of the structure of the dust collection component in the invention;

[0038] Figure 5 It is a schematic diagram of the structure of the feed assembly in the invention;

[0039] Figure 6 For the invention Figure 5 A is an enlarged structural diagram;

[0040] Figure 7 It is a schematic diagram of the full cross-section structure of the feed assembly in the invention;

[0041] Figure 8 It is a schematic diagram of the structure of the screen assembly in the invention;

[0042] Fig. 9 It is a schematic diagram of the structure of the fixed component in the invention;

[0043] Fig.10 This is a schematic diagram of the enlarged structure of the first insertion rod in the invention.

[0044] In the figure: 1. Screening assembly; 101. Bottom plate; 102. Isolation pad; 103. Support plate; 104. First spring; 105. Shell; 106. First guide plate; 107. Second guide plate; 108. Vibration motor; 2. Dust collection assembly; 201. First L-shaped plate; 202. Connecting rod; 203. Dust collection fan; 204. Dust bag; 205. Dust hood; 206. First elastic rubber frame; 207. Three-way pipe; 208. Butt pipe; 3. Feed assembly; 301. Second L-shaped plate; 302. Feed hopper; 303. Inclined guide plate; 304. Vibrator; 305. Fixed plate; 306, sliding rod; 307, motor; 308, bidirectional screw; 309, threaded slider; 3010, rectangular movable rod; 3011, rectangular movable tube; 3012, fixing rod; 3013, material blocking plate; 3014, second elastic rubber frame; 4, screen assembly; 401, mounting frame; 402, screen; 5, fixing assembly; 501, first U-shaped frame; 502, first plug rod; 503, first lever; 504, first limit block; 505, second spring; 506, second U-shaped frame; 507, second plug rod; 508, second lever; 509, second limit block; 5010, third spring. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] See also Figures 1 to 10 The present invention provides a technical solution: a screening device and a method for using the screening device for industrial silicon ingot production, comprising a screening component 1, a dust collecting component 2 and a feeding component 3 are sequentially installed on the top of the screening component 1 from left to right, a screen component 4 is installed on the inner wall of the screening component 1, and fixing components 5 are installed on both the front and rear ends of the screening component 1.

[0049] The dust collection assembly 2 includes a first L-shaped plate 201 and a connecting rod 202, a dust collection fan 203 is installed on the top of the connecting rod 202, a dust bag 204 is installed on the bottom of the dust collection fan 203 by screws, a dust collection hood 205 is installed on the front end of the first L-shaped plate 201, a first elastic rubber frame 206 is installed on the bottom of the dust collection hood 205, a three-way pipe 207 is installed on the top of the dust collection hood 205, and a docking pipe 208 is installed on the top of the three-way pipe 207.

[0050] The feeding assembly 3 includes a second L-shaped plate 301, a feeding hopper 302 is installed at the rear end of the second L-shaped plate 301, inclined guide plates 303 are installed on both sides of the feeding hopper 302, a rapper 304 and a fixed plate 305 are installed at the front end of the feeding hopper 302 from top to bottom, a sliding rod 306 is installed on one side of the fixed plate 305, a motor 307 is installed on the other side of the fixed plate 305, a bidirectional screw 308 is installed at the output end of the motor 307, a threaded slider 309 is threadedly installed on the outer wall of the bidirectional screw 308, a rectangular movable rod 3010 is installed on the top of the threaded slider 309, a rectangular movable tube 3011 is slidably installed on the outer wall of the rectangular movable rod 3010, a fixed rod 3012 is installed on one side of the rectangular movable tube 3011, a material blocking plate 3013 is installed at the rear end of the fixed rod 3012, and a second elastic rubber frame 3014 is installed at the bottom of the feeding hopper 302.

[0051] The fixing assembly 5 includes a first U-shaped frame 501, a first plug rod 502 is slidably installed through the front end of the first U-shaped frame 501, a first lever 503 is installed at the front end of the first plug rod 502, a first limit block 504 is installed on the outer wall of the first plug rod 502, a second spring 505 is installed at the front end of the first limit block 504, a second U-shaped frame 506 is installed at the front end of the first U-shaped frame 501, a second plug rod 507 is slidably installed through one side of the second U-shaped frame 506, a second lever 508 is installed on one side of the second plug rod 507, a second limit block 509 is installed on the outer wall of the second plug rod 507, and a third spring 5010 is installed on one side of the second limit block 509.

[0052] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig. 9 As shown, the screening assembly 1 includes a bottom plate 101, a plurality of seismic isolation pads 102 are installed on the top of the bottom plate 101, a support plate 103 is installed on the top of the seismic isolation pad 102, a plurality of first springs 104 are installed on the top of the support plate 103, a shell 105 is installed on the top of the first spring 104, a first guide plate 106 and a second guide plate 107 are installed on one side of the shell 105 from top to bottom, a vibration motor 108 is installed on the bottom of the shell 105, a first L-shaped plate 201 and a connecting rod 202 are installed on the top of the bottom plate 101, and the top of the bottom plate 101 A second L-shaped plate 301 is installed, a first U-shaped frame 501 is installed at the front end of the shell 105, and the vibration motors 108 are symmetrically distributed about the vertical center line of the shell 105; when the two vibration motors 108 are started, the raw materials can be transported from right to left, and the raw materials can be screened through the screen 402. Smaller raw materials pass through the screen 402 and fall to the bottom of the inner wall of the shell 105. The raw materials on the screen 402 are discharged through the first guide plate 106, and the raw materials at the bottom of the inner wall of the shell 105 are discharged through the second guide plate 107, and the raw materials are screened.

[0053] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a number of seismic isolation pads 102 are evenly and equidistantly distributed on the top of the base plate 101, and a number of first springs 104 are evenly and equidistantly distributed on the top of the support plate 103, and the first springs 104 are symmetrically distributed about the vertical center line of the support plate 103; when the shell 105 is driven to vibrate by the vibration motor 108, the number of first springs 104 can play a buffering role, and the number of seismic isolation pads 102 can absorb vibration and reduce impact.

[0054] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the screen assembly 4 includes a mounting frame 401 mounted on the inner wall of the shell 105, a screen 402 is installed on the inner wall of the mounting frame 401, and the inner wall of the shell 105 is provided with a slide groove whose internal dimension structure is consistent with the external dimension structure of the mounting frame 401, and the mounting frame 401 forms a sliding mechanism with the shell 105 through the slide groove; when the mounting frame 401 is inserted into the slide groove of the inner wall of the shell 105, it is convenient to quickly install the screen assembly 4 and the shell 105, and it is also convenient to replace the screens 402 with different apertures.

[0055] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, there are four first L-shaped plates 201 in total, and the first L-shaped plates 201 are symmetrically distributed about the vertical center line of the dust hood 205, and one end of the docking tube 208 is connected to the dust suction fan 203, and the bottom of the first elastic rubber frame 206 is connected to the top of the shell 105; the four first L-shaped plates 201 can stably support the dust suction hood 205. When the dust suction fan 203 is started, the raw material dust raised by the vibration can be absorbed through the docking tube 208, the three-way pipe 207 and the dust suction hood 205, and the dust enters the dust bag 204 and is collected by the dust bag 204, which can prevent the dust from entering the air and causing air pollution. At the same time, the raw material dust is collected to avoid the waste of raw materials, thereby playing a role in energy conservation and emission reduction.

[0056] In this embodiment, Figure 5 , Figure 6 and Figure 7 As shown, the second L-shaped plate 301 and the rapper 304 are symmetrically distributed about the vertical center line of the feed hopper 302, and the bottom of the second elastic rubber frame 3014 is connected to the top of the shell 105; the two second L-shaped plates 301 can stably support the feed hopper 302, and when the two rappers 304 are started, the feed hopper 302 can be rapped, which can prevent the raw materials in the feed hopper 302 from being blocked or the raw materials from being retained in the feed hopper 302, so that the device can feed smoothly.

[0057] In this embodiment, Figure 5 , Figure 6 and Figure 7As shown, both sides of the feed hopper 302 are penetrated by a material blocking plate 3013 that is slidably installed, and the threaded slider 309 and the slide rod 306 form a sliding mechanism, and the threaded slider 309 and the motor 307 form a spiral transmission mechanism through the bidirectional screw 308, the external dimension structure of the rectangular movable rod 3010 is consistent with the internal dimension structure of the rectangular movable tube 3011, and the fixed plate 305, the threaded slider 309, the rectangular movable rod 3010, the rectangular movable tube 3011, the fixed rod 3012 and the material blocking plate 3013 are connected with the feed hopper 302. The sliding rod 306 can improve the stability of the threaded slider 309 when it moves left and right. When the motor 307 is started, the bidirectional screw 308 drives the threaded slider 309 to move left and right. The threaded slider 309 pushes the baffle plate 3013 to move left and right through the rectangular movable rod 3010, the rectangular movable tube 3011 and the fixed rod 3012. The distance between the two baffle plates 3013 can be adjusted, thereby adjusting the unloading speed of the feed hopper 302. The inclined baffle plate 3013 can prevent the raw materials from being retained in the feed hopper 302.

[0058] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9 As shown, the front and rear ends of the mounting frame 401 and the shell 105 are provided with rectangular slots whose internal dimension structures are consistent with the external dimension structures of the first insertion rod 502, and the first limit block 504 forms an elastic mechanism with the first U-shaped frame 501 through the second spring 505; the first insertion rod 502 is subjected to the elastic force of the second spring 505 and is inserted into the rectangular slots on the mounting frame 401 and the shell 105, so that the screen assembly 4 can be fixed in the shell 105, and the first lever 503 is pulled to remove the first insertion rod 502 from the rectangular slot on the mounting frame 401, so as to facilitate the subsequent disassembly of the screen assembly 4.

[0059] In this embodiment, Fig. 9 and Fig.10 As shown, one side of the first plug rod 502 is provided with two rectangular slots whose internal dimension structures are consistent with the external dimension structures of the second plug rod 507 from front to back, and the second limit block 509 forms an elastic mechanism with the second U-shaped frame 506 through the third spring 5010; when the second plug rod 507 is inserted into the rectangular slot at the front end of the first plug rod 502 under the elastic force of the third spring 5010, the position of the first plug rod 502 can be fixed, and the stability of the first plug rod 502 fixing the installation frame 401 is improved; when the second plug rod 507 is inserted into the rectangular slot at the rear end of the first plug rod 502, the position of the first plug rod 502 is fixed, which is convenient for the subsequent replacement of the screen assembly 4.

[0060] Based on the method of using the screening device for industrial silicon ingot production, the specific steps are as follows:

[0061] Step 1: Start the motor 307, and drive the two sets of threaded sliders 309, the rectangular movable rod 3010, the rectangular movable tube 3011, the fixed rod 3012 and the baffle plate 3013 to move through the bidirectional screw 308, and adjust the distance between the two baffle plates 3013 to a suitable width;

[0062] Step 2: Add raw materials into the feed hopper 302, then start the two rappers 304 to rap the feed hopper 302, and simultaneously start the two vibration motors 108 at the bottom of the shell 105 to drive the shell 105 and the screen 402 to vibrate, the screen 402 screens the raw materials, the raw materials on the screen 402 are discharged through the first guide plate 106, and the raw materials at the bottom of the inner wall of the shell 105 are discharged through the second guide plate 107;

[0063] Step 3: When the vibration motor 108 is started, the dust suction fan 203 is started. The dust suction fan 203 absorbs the raw material dust raised by the vibration through the butt joint 208, the three-way pipe 207 and the dust suction cover 205, and sends the raw material dust into the dust removal bag 204;

[0064] Step 4: When the dust of raw materials collected in the dust bag 204 is too much, stop the screening work, remove the screws that install the dust collection fan 203 and the dust collection bag 204, remove the dust collection bag 204, and install the new dust collection bag 204 and the dust collection fan 203 with the screws;

[0065] Step 5: When replacing the screen 402 with a different diameter, pull the second lever 508, and the second rod 507 is pulled out from the rectangular slot at the front end of the first rod 502. Then, pull the first lever 503 to pull the first rod 502 out of the rectangular slot on the installation frame 401. Then, release the second lever 508, and the second rod 507 is inserted into the rectangular slot at the rear end of the first rod 502 under the elastic force of the third spring 5010.

[0066] Step six: Then pull out the screen assembly 4 in the inner wall slide groove of the shell 105, then insert the new screen assembly 4 into the inner wall slide groove of the shell 105, then pull the second lever 508, the second plug rod 507 is pulled out from the rectangular slot at the rear end of the first plug rod 502, the first plug rod 502 is subjected to the elastic force of the second spring 505, and is inserted into the rectangular slots on the installation frame 401 and the shell 105 to fix the screen assembly 4, then release the second lever 508, the second plug rod 507 is subjected to the elastic force of the third spring 5010 and is inserted into the rectangular slot at the front end of the first plug rod 502.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening device for industrial silicon ingot production, comprising a screening component (1), characterized in that: A dust collecting assembly (2) and a feeding assembly (3) are installed on the top of the screening assembly (1) from left to right in sequence, a screen assembly (4) is installed on the inner wall of the screening assembly (1), and fixing assemblies (5) are installed at both the front and rear ends of the screening assembly (1); The dust collection assembly (2) comprises a first L-shaped plate (201) and a connecting rod (202); a dust collection fan (203) is installed on the top of the connecting rod (202); a dust bag (204) is installed on the bottom of the dust collection fan (203) by means of screws; a dust collection hood (205) is installed on the front end of the first L-shaped plate (201); a first elastic rubber frame (206) is installed on the bottom of the dust collection hood (205); a three-way pipe (207) is installed on the top of the dust collection hood (205); and a butt-joint pipe (208) is installed on the top of the three-way pipe (207); The feeding assembly (3) comprises a second L-shaped plate (301), a feeding hopper (302) is installed at the rear end of the second L-shaped plate (301), inclined guide plates (303) are installed on both sides of the feeding hopper (302), a rapper (304) and a fixing plate (305) are installed in sequence from top to bottom at the front end of the feeding hopper (302), a sliding rod (306) is installed on one side of the fixing plate (305), a motor (307) is installed on the other side of the fixing plate (305), and a bidirectional motor (307) is installed at the output end of the motor (307). A screw rod (308), a threaded slider (309) is threadedly installed on the outer wall of the bidirectional screw rod (308), a rectangular movable rod (3010) is installed on the top of the threaded slider (309), a rectangular movable tube (3011) is slidably installed on the outer wall of the rectangular movable rod (3010), a fixed rod (3012) is installed on one side of the rectangular movable tube (3011), a material blocking plate (3013) is installed at the rear end of the fixed rod (3012), and a second elastic rubber frame (3014) is installed at the bottom of the feed hopper (302); The fixing assembly (5) comprises a first U-shaped frame (501), a first insertion rod (502) is slidably installed through the front end of the first U-shaped frame (501), a first lever (503) is installed at the front end of the first insertion rod (502), a first limiting block (504) is installed on the outer wall of the first insertion rod (502), a second spring (505) is installed at the front end of the first limiting block (504), a second U-shaped frame (506) is installed at the front end of the first U-shaped frame (501), a second insertion rod (507) is slidably installed through one side of the second U-shaped frame (506), a second lever (508) is installed on one side of the second insertion rod (507), a second limiting block (509) is installed on the outer wall of the second insertion rod (507), and a third spring (5010) is installed on one side of the second limiting block (509).

2. The screening device for industrial silicon ingot production according to claim 1, characterized in that: The screening assembly (1) comprises a base plate (101), a plurality of seismic isolation pads (102) are installed on the top of the base plate (101), a support plate (103) is installed on the top of the seismic isolation pads (102), a plurality of first springs (104) are installed on the top of the support plate (103), a shell (105) is installed on the top of the first springs (104), a first guide plate (106) and a second guide plate (107) are installed on one side of the shell (105) in order from top to bottom, a vibration motor (108) is installed at the bottom of the shell (105), a first L-shaped plate (201) and a connecting rod (202) are installed on the top of the base plate (101), a second L-shaped plate (301) is installed on the top of the base plate (101), a first U-shaped frame (501) is installed at the front end of the shell (105), and the vibration motors (108) are symmetrically distributed about the vertical center line of the shell (105).

3. The screening device for industrial silicon ingot production according to claim 2, characterized in that: The plurality of seismic isolation pads (102) are evenly and equidistantly distributed on the top of the base plate (101), and the plurality of first springs (104) are evenly and equidistantly distributed on the top of the support plate (103), and the first springs (104) are symmetrically distributed about the vertical center line of the support plate (103).

4. The screening device for industrial silicon ingot production according to claim 1 or 2, characterized in that: The screen assembly (4) comprises a mounting frame (401) mounted on the inner wall of the housing (105); a screen (402) is mounted on the inner wall of the mounting frame (401); a slide groove having an internal dimension structure consistent with an external dimension structure of the mounting frame (401) is provided on the inner wall of the housing (105); and the mounting frame (401) forms a sliding mechanism with the housing (105) via the slide groove.

5. The screening device for industrial silicon ingot production according to claim 1 or 2, characterized in that: There are four first L-shaped plates (201) in total, and the first L-shaped plates (201) are symmetrically distributed about the vertical center line of the dust hood (205), and one end of the butt joint pipe (208) is connected to the dust suction fan (203), and the bottom of the first elastic rubber frame (206) is connected to the top of the shell (105).

6. The screening device for industrial silicon ingot production according to claim 1 or 2, characterized in that: The second L-shaped plate (301) and the rapper (304) are symmetrically distributed about the vertical center line of the feed hopper (302), and the bottom of the second elastic rubber frame (3014) is connected to the top of the shell (105).

7. The screening device for industrial silicon ingot production according to claim 1, characterized in that: Both sides of the feed hopper (302) are slidably installed with a material blocking plate (3013), and the threaded slider (309) and the slide rod (306) form a sliding mechanism, and the threaded slider (309) and the motor (307) form a spiral transmission mechanism through the bidirectional screw (308), the external dimension structure of the rectangular movable rod (3010) is consistent with the internal dimension structure of the rectangular movable tube (3011), and the fixed plate (305), the threaded slider (309), the rectangular movable rod (3010), the rectangular movable tube (3011), the fixed rod (3012) and the material blocking plate (3013) are symmetrically distributed about the vertical center line of the feed hopper (302).

8. The screening device for industrial silicon ingot production according to claim 2 or 4, characterized in that: The front and rear ends of the installation frame (401) and the shell (105) are both provided with rectangular slots whose internal dimensions are consistent with the external dimensions of the first insertion rod (502), and the first limit block (504) forms an elastic mechanism with the first U-shaped frame (501) through the second spring (505).

9. The screening device for industrial silicon ingot production according to claim 1, characterized in that: Two rectangular slots having internal dimensions consistent with the external dimensions of the second plug rod (507) are provided on one side of the first plug rod (502) from front to back, and the second limit block (509) forms an elastic mechanism with the second U-shaped frame (506) through the third spring (5010).

10. A method for using a screening device for industrial silicon ingot production, characterized in that: The screening device for industrial silicon ingot production according to any one of claims 1 to 9 is used, and the specific steps are as follows: Step 1: Start the motor (307), drive the two sets of threaded sliders (309), the rectangular movable rod (3010), the rectangular movable tube (3011), the fixed rod (3012) and the baffle plate (3013) to move through the bidirectional screw (308), adjust the distance between the two baffle plates (3013), and adjust the distance between the two baffle plates (3013) to a suitable width; Step 2: Add raw materials into the feed hopper (302), then start two vibrators (304) to vibrate the feed hopper (302), and simultaneously start two vibration motors (108) at the bottom of the shell (105) to drive the shell (105) and the screen (402) to vibrate, the screen (402) screens the raw materials, the raw materials on the screen (402) are discharged through the first guide plate (106), and the raw materials at the bottom of the inner wall of the shell (105) are discharged through the second guide plate (107); Step 3: When the vibration motor (108) is started, the dust suction fan (203) is started, and the dust suction fan (203) absorbs the raw material dust raised by the vibration through the butt joint (208), the three-way pipe (207) and the dust suction cover (205), and sends the raw material dust into the dust removal bag (204); Step 4: When a large amount of raw material dust is collected in the dust bag (204), the screening operation is stopped, the screws for mounting the dust collecting fan (203) and the dust collecting bag (204) are removed, the dust collecting bag (204) is removed, and a new dust collecting bag (204) and the dust collecting fan (203) are mounted with the screws; Step 5: When replacing the screen (402) with a different diameter, pull the second lever (508) to pull the second insertion rod (507) out of the rectangular slot at the front end of the first insertion rod (502), then pull the first lever (503) to pull the first insertion rod (502) out of the rectangular slot on the installation frame (401), then release the second lever (508), and the second insertion rod (507) is inserted into the rectangular slot at the rear end of the first insertion rod (502) under the elastic force of the third spring (5010); Step 6: Then pull out the screen assembly (4) in the inner wall groove of the shell (105), then insert a new screen assembly (4) into the inner wall groove of the shell (105), then pull the second lever (508), the second plug rod (507) is pulled out from the rectangular slot at the rear end of the first plug rod (502), the first plug rod (502) is subjected to the elastic force of the second spring (505), inserted into the rectangular slots on the installation frame (401) and the shell (105), the screen assembly (4) is fixed, then loosen the second lever (508), the second plug rod (507) is subjected to the elastic force of the third spring (5010) and inserted into the rectangular slot at the front end of the first plug rod (502).

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