Classified recovery device for polycrystalline silicon production waste

Abstract

The utility model relates to the technical field of polycrystalline silicon production waste recovery, in particular to a polycrystalline silicon production waste classification recovery device which comprises a supporting base and a recovery barrel, a portable splitting mechanism is arranged above the recovery barrel, and two sets of vibration screening mechanisms are arranged in the recovery barrel. When the classified recycling device for the polycrystalline silicon production waste is used, the design that two sieve plates with different opening diameters are arranged to be matched with the mechanisms for transmission to vibrate the sieve plates is adopted, the polycrystalline silicon production waste can be automatically subjected to stage treatment along with vibration of the sieve plates, and therefore the classified recycling device for the polycrystalline silicon production waste can be used for recycling the polycrystalline silicon production waste. And through grading treatment, a worker can adopt different recovery treatment modes on the graded polycrystalline silicon production waste according to the size of the graded polycrystalline silicon production waste, so that the overall utilization rate of the polycrystalline silicon production waste is higher by adopting a targeted recovery mode, and the practical effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon production waste recycling, in particular to a polysilicon production waste classification recycling device. Background Art

[0002] Polycrystalline silicon refers to a silicon material composed of multiple single crystal grains. It is a silicon material with an imperfect crystal structure. During the production and preparation process, the silicon grains grow at different angles and sizes, thus forming a polycrystalline structure. Polycrystalline silicon is often used in the manufacture of solar cells because it is cheaper than single crystal silicon and can generate electricity effectively under poor lighting conditions. At the same time, polycrystalline silicon produces waste during processing, which can be recycled for secondary use.

[0003] Since the existing devices directly place polysilicon production waste in a unified storage box when recycling it, and the recycling methods of polysilicon production waste of different sizes are different, but the existing devices are not equipped with relevant methods to distinguish and recycle them, the overall practical effect is poor. Utility Model Content

[0004] The purpose of the present utility model is to solve the above-mentioned problem and propose a polysilicon production waste classification and recovery device, which improves the existing device in which the polysilicon production waste is directly placed in a unified placement box when recycling it. The recycling methods of polysilicon production waste of different sizes are different, but the existing device does not have a relevant method to distinguish and recycle them.

[0005] A polysilicon production waste classification and recycling device comprises a support base and a recycling barrel: a recycling barrel is provided on the top outer wall of the support base, a discharge port is provided on the bottom outer wall of the recycling barrel, and a discharge pipe is provided on the bottom outer wall of the recycling barrel located at the discharge port, a portable splitting mechanism is provided above the recycling barrel, two groups of vibration screening mechanisms are provided inside the recycling barrel, a linkage transmission mechanism is connected between the two groups of the vibration screening mechanisms, the portable splitting mechanism comprises a sealing cover, a threaded ring and a threaded groove, a sealing cover is fitted on the top outer wall of the recycling barrel, and a feed pipe is provided on the top outer wall of the sealing cover, a threaded ring is provided on the bottom outer wall of the sealing cover, a threaded groove is provided on the top outer wall of the recycling barrel, and a threaded connection is formed between the threaded ring and the threaded groove.

[0006] Preferably, the vibrating screening mechanism includes a protective ring, a sieve plate and a limiting T-shaped block. Two protective rings are arranged inside the recovery barrel. The sieve plate is arranged on the inner side wall of the protective ring located in the middle position, and the limiting T-shaped blocks are symmetrically arranged on the outer side wall of the protective ring located on the sieve plate.

[0007] Preferably, the side inner wall of the recycling barrel is symmetrically provided with limiting T-shaped grooves, the limiting T-shaped block and the limiting T-shaped groove are slidably installed, and a return spring is connected between the top outer wall of the limiting T-shaped block and the top inner wall of the limiting T-shaped groove.

[0008] Preferably, a protective cover is provided on the side outer wall of the recycling barrel, a driving motor is provided on the side inner wall of the protective cover, the driving motor is connected to one end of the control shaft, and the other end of the control shaft is connected to the side inner wall of the recycling barrel.

[0009] Preferably, a limit cam is symmetrically arranged outside the control shaft located inside the recovery barrel, and the limit cam is located below the sieve plate.

[0010] Preferably, the sieve plate is configured to be in the shape of a porous circular cake, and two sieve plates are provided, and the opening diameter of the sieve plate located at the upper side is larger than the opening diameter of the sieve plate located at the lower side.

[0011] Preferably, the outer wall of the top end of the protective ring is configured as an arc-shaped structure, and the height of the protective ring is approximately twice the slot height of the limiting T-shaped slot.

[0012] Preferably, the linkage transmission mechanism includes a driving pulley, a driven pulley and a transmission belt, and two control shafts are provided, one end of the control shaft located above is rotatably mounted on the side inner wall of the protective cover, and the other end of the control shaft located above is rotatably mounted on the side inner wall of the recovery bucket, a driving pulley is provided on the outside of the control shaft located below, and a driven pulley is provided on the outside of the control shaft located above, and a transmission belt is connected between the driving pulley and the driven pulley.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the polysilicon production waste classification and recycling device is in use, two sieve plates with different opening diameters are set to vibrate with the mechanism transmission. As the sieve plates vibrate, the polysilicon production waste will be automatically graded and processed. Through the graded processing, the staff can adopt different recycling methods according to the size of the polysilicon production waste after classification, and then adopt targeted recycling methods to make the overall utilization rate of polysilicon production waste higher. The design of driving the drive pulley, the driven pulley and the transmission belt transmission to drive the two sets of vibration screening mechanisms to operate simultaneously has excellent overall energy-saving effect and good practical effect;

[0015] 2. When the polysilicon production waste classification and recycling device is in use, the recycling barrel is designed with three material taking methods, namely, upper, middle and lower, so that the user can take the polysilicon production waste of the required size as needed, and take them out one by one to prevent confusion, and the overall practical effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the portable disassembly mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the vibrating screening mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the screen plate installation of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the linkage transmission mechanism of the utility model.

[0021] In the figure: 1. Support base; 2. Recovery bin; 3. Portable splitting mechanism; 31. Sealing cover; 32. Threaded ring; 33. Threaded groove; 4. Vibration screening mechanism; 41. Protective ring; 42. Screen plate; 43. Limiting T-block; 44. Limiting T-slot; 45. Reset spring; 46. Protective cover; 47. Drive motor; 48. Control shaft; 49. Limiting cam; 5. Linkage transmission mechanism; 51. Driving pulley; 52. Driven pulley; 53. Transmission belt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] When implementing: Figure 1-5As shown, a polysilicon production waste classification and recycling device includes a support base 1 and a recycling barrel 2: the top outer wall of the support base 1 is provided with a recycling barrel 2, the bottom outer wall of the recycling barrel 2 is provided with a discharge port, and the bottom outer wall of the recycling barrel 2 located at the discharge port is provided with a discharge pipe, a portable splitting mechanism 3 is provided above the recycling barrel 2, two groups of vibration screening mechanisms 4 are provided inside the recycling barrel 2, and a linkage transmission mechanism 5 is connected between the two groups of the vibration screening mechanisms 4, the portable splitting mechanism 3 includes a sealing cover 31, a threaded ring 32 and a threaded groove 33, and the top outer wall of the recycling barrel 2 is fitted with a sealing cover 31, and the top outer wall of the sealing cover 31 is provided with a feed pipe, the bottom outer wall of the sealing cover 31 is provided with a threaded ring 32, and the top outer wall of the recycling barrel 2 is provided with a threaded groove 33, and the threaded ring 32 and the threaded groove 33 are threadedly connected; when it is necessary to remove the sealing cover 31 from the top of the recycling barrel 2 in order to take out the larger particles of polysilicon production waste at the top of the recycling barrel 2, at this time, it is only necessary to rotate the sealing cover 31 until the threaded ring 32 is completely separated from the threaded groove 33 at the top of the recycling barrel 2. After the material is taken out, the sealing cover 31 is adjusted in position and the threaded ring 32 is screwed back into the threaded groove 33 at the top of the recycling barrel 2.

[0024] The vibrating screening mechanism 4 includes a protective ring 41, a sieve plate 42 and a limiting T-shaped block 43. Two protective rings 41 are arranged inside the recycling bucket 2. The sieve plate 42 is arranged on the inner wall of the side of the protective ring 41 located in the middle position. The limiting T-shaped block 43 is symmetrically arranged on the outer wall of the side of the sieve plate 42 of the protective ring 41. The limiting T-shaped groove 44 is symmetrically opened on the inner wall of the side of the recycling bucket 2. The limiting T-shaped block 43 and the limiting T-shaped groove 44 are slidably installed. The top outer wall of the limiting T-shaped block 43 and the top of the limiting T-shaped groove 44 are A return spring 45 is connected between the inner walls of the ends, a protective cover 46 is provided on the side outer wall of the recycling bucket 2, a driving motor 47 is provided on the side inner wall of the protective cover 46, the driving motor 47 is connected to one end of a control shaft 48, the other end of the control shaft 48 is connected to the side inner wall of the recycling bucket 2, and a limit cam 49 is symmetrically provided on the outside of the control shaft 48 inside the recycling bucket 2, and the limit cam 49 is located below the sieve plate 42; when it is necessary to screen and grade the inside of the recycling bucket 2, it is necessary to first control the driving motor 47 to adjust the control shaft 48 ... The machine 47 is turned on. The setting of the protective cover 46 here plays a protective supporting role for the driving motor 47. When the driving motor 47 is turned on, it will automatically drive the control shaft 48 to rotate and then drive the limit cam 49 to rotate. When the limit cam 49 conflicts with the screen plate 42 during the rotation process, the screen plate 42 automatically moves upward due to the conflict and drives the protective ring 41 to move. When the protective ring 41 moves, it will automatically drive the limit T-shaped block 43 to slide inside the limit T-shaped groove 44. At this time, the return spring 45 is contracted by the extrusion of the limit T-shaped block 43. When the limit cam 49 does not conflict with the sieve plate 42 during rotation, the extrusion reaction force generated by the reset spring 45 will automatically drive the protective ring 41 to reset and then drive the sieve plate 42 to reset. The above working process is repeated to make the sieve plate 42 in an up and down displacement vibration state, and then the waste material larger than the opening diameter of the sieve plate 42 will remain above the sieve plate 42, and the waste material smaller than the opening diameter of the sieve plate 42 will fall to the lower layer of the sieve plate 42 through vibration, so that the polysilicon production waste above the sieve plate 42 is screened and processed by the vibration of the sieve plate 42.

[0025] The sieve plate 42 is configured to be in a porous disc shape, and two sieve plates 42 are provided, the opening diameter of the upper sieve plate 42 is larger than the opening diameter of the lower sieve plate 42; the two sieve plates 42 are configured from top to bottom with opening diameters from large to small, so as to facilitate the grading of polysilicon production waste from large to small.

[0026] The top outer wall of the protective ring 41 is arranged as an arc structure, and the height of the protective ring 41 is approximately twice the slot height of the limiting T-slot 44; the top of the protective ring 41 is arranged as an arc so that when it moves up and down, it can better fit and move with the inner wall of the recycling barrel 2, and the material will not be easily stuck; the height of the protective ring 41 is approximately twice the slot height of the limiting T-slot 44, so that no matter how the protective ring 41 is displaced, the limiting T-slot 44 is always within the covering range of the protective ring 41, thereby preventing the protective ring 41 from moving and causing the limiting T-slot 44 to leak out, causing the material to be stuck in the slot and affecting the normal operation of the device.

[0027] The linkage transmission mechanism 5 includes a driving pulley 51, a driven pulley 52 and a transmission belt 53. Two control shafts 48 are provided. One end of the control shaft 48 located at the top is rotatably installed with the side inner wall of the protective cover 46, and the other end of the control shaft 48 located at the top is rotatably installed with the side inner wall of the recovery barrel 2. The outside of the control shaft 48 located at the bottom is provided with a driving pulley 51, and the outside of the control shaft 48 located at the top is provided with a driven pulley 52. ​​A transmission belt 53 is connected between the driving pulley 51 and the driven pulley 52; when the control shaft 48 at the bottom rotates, it will automatically drive the driving pulley 51 to rotate and then drive the driven pulley 52 to transmit, and then the driven pulley 52 will automatically drive the driven pulley 52 to rotate and then drive the control shaft 48 at the top to rotate, so that the two sets of vibration screening mechanisms 4 can be in a synchronous operation state through the transmission design.

[0028] When the utility model is in use, it is first necessary to pour the polysilicon production waste into the device through the feed pipe at the top of the sealing cover 31, and then turn on the drive motor 47. When the drive motor 47 is turned on, it will automatically drive the control shaft 48 to rotate and then drive the limit cam 49 to rotate. When the limit cam 49 conflicts with the sieve plate 42 during the rotation process, the sieve plate 42 automatically moves upward due to the conflict and drives the protective ring 41 to move. When the protective ring 41 moves, it will automatically drive the limit T-shaped block 43 to slide inside the limit T-shaped groove 44. At this time, the reset spring 45 is in a contracted state due to the extrusion effect of the limit T-shaped block 43. When the limit cam 49 does not conflict with the sieve plate 42 during the rotation process, the extrusion reaction force generated by the reset spring 45 is It will automatically drive the protective ring 41 to reset and then drive the sieve plate 42 to reset. Repeat the above working process so that the sieve plate 42 is in an up and down displacement vibration state. Then the waste material larger than the opening diameter of the sieve plate 42 will remain on the sieve plate 42, and the waste material smaller than the opening diameter of the sieve plate 42 will fall to the lower layer of the sieve plate 42 through vibration. In this way, the polysilicon production waste above the sieve plate 42 is screened by the vibration of the sieve plate 42. When the control shaft 48 below rotates, it will automatically drive the driving pulley 51 to rotate and then drive the driven pulley 52 to transmit. Then the driven pulley 52 transmission will automatically drive the driven pulley 52 to rotate and then drive the upper control shaft 48 to rotate. In this way, the two sets of vibration screening mechanisms 4 can be in a synchronous operation state through the transmission design.

[0029] Then the polysilicon production waste with the smallest particle size will be discharged through the discharge pipe at the bottom of the recovery barrel 2, and the polysilicon production waste with medium particle size will be discharged through the discharge pipe at the bottom of the recovery barrel 2. Figure 1 As shown, a material taking door is provided on the side of the recycling barrel 2, and the material can be taken out directly after it is opened. The material with the largest particle size needs to be removed from the top of the recycling barrel 2 by removing the sealing cover 31. When removing, it is only necessary to rotate the sealing cover 31 until the threaded ring 32 is completely separated from the threaded groove 33 at the top of the recycling barrel 2, and then the material can be taken out directly;

[0030] It is noted here that the drive motor 47 can be powered by existing technology, whether it is powered by a power supply component or an external wire, which belongs to existing technical means and will not be described in detail here.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A polysilicon production waste classification and recovery device, characterized in that: The invention comprises a support base (1) and a recycling bucket (2): the top outer wall of the support base (1) is provided with a recycling bucket (2), the bottom outer wall of the recycling bucket (2) is provided with a discharge port, and the bottom outer wall of the recycling bucket (2) located at the discharge port is provided with a discharge pipe, a portable splitting mechanism (3) is provided above the recycling bucket (2), two groups of vibration screening mechanisms (4) are provided inside the recycling bucket (2), and a linkage transmission mechanism (5) is connected between the two groups of vibration screening mechanisms (4), and the portable splitting mechanism (3) comprises a sealing cover (31), a threaded ring (32) and a threaded groove (33), the top outer wall of the recycling bucket (2) is fitted with the sealing cover (31), and the top outer wall of the sealing cover (31) is provided with a feed pipe, the bottom outer wall of the sealing cover (31) is provided with a threaded ring (32), and the top outer wall of the recycling bucket (2) is provided with a threaded groove (33), and the threaded ring (32) and the threaded groove (33) are threadedly connected.

2. The polysilicon production waste classification and recovery device according to claim 1, characterized in that: The vibrating screening mechanism (4) comprises a protective ring (41), a sieve plate (42) and a limiting T-shaped block (43); two protective rings (41) are arranged inside the recovery barrel (2); the sieve plate (42) is arranged on the inner wall of the side of the protective ring (41) at the middle position; and the limiting T-shaped block (43) is symmetrically arranged on the outer wall of the side of the protective ring (41) at the sieve plate (42).

3. The polysilicon production waste classification and recovery device according to claim 2, characterized in that: The inner side wall of the recycling bucket (2) is symmetrically provided with a limiting T-shaped groove (44); the limiting T-shaped block (43) and the limiting T-shaped groove (44) are slidably mounted; a return spring (45) is connected between the top outer wall of the limiting T-shaped block (43) and the top inner wall of the limiting T-shaped groove (44).

4. The polysilicon production waste classification and recovery device according to claim 3, characterized in that: The outer side wall of the recycling barrel (2) is provided with a protective cover (46), the inner side wall of the protective cover (46) is provided with a driving motor (47), the driving motor (47) is connected to one end of a control shaft (48), and the other end of the control shaft (48) is connected to the inner side wall of the recycling barrel (2).

5. The polysilicon production waste classification and recovery device according to claim 4, characterized in that: A limit cam (49) is symmetrically arranged outside the control shaft (48) located inside the recovery barrel (2), and the limit cam (49) is located below the screen plate (42).

6. The polysilicon production waste classification and recovery device according to claim 2, characterized in that: The sieve plate (42) is configured to be in the shape of a porous circular cake, and two sieve plates (42) are provided, the opening diameter of the sieve plate (42) located at the upper side being larger than the opening diameter of the sieve plate (42) located at the lower side.

7. The polysilicon production waste classification and recovery device according to claim 3, characterized in that: The outer wall of the top end of the protection ring (41) is arranged to be an arc-shaped structure, and the height of the protection ring (41) is approximately twice the slot height of the limiting T-shaped slot (44).

8. The polysilicon production waste classification and recovery device according to claim 4, characterized in that: The linkage transmission mechanism (5) comprises a driving pulley (51), a driven pulley (52) and a transmission belt (53); two control shafts (48) are provided, one end of the control shaft (48) located at the top is rotatably mounted on the side inner wall of the protective cover (46), and the other end of the control shaft (48) located at the top is rotatably mounted on the side inner wall of the recovery bucket (2); a driving pulley (51) is provided on the outside of the control shaft (48) located at the bottom, and a driven pulley (52) is provided on the outside of the control shaft (48) located at the top; a transmission belt (53) is connected between the driving pulley (51) and the driven pulley (52).

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