Unblocking mechanism and leaching system using same

Abstract

The utility model discloses a unblocking mechanism and a leaching system using the unblocking mechanism, and belongs to the technical field of anti-blocking leaching towers, the unblocking mechanism comprises a motor, a worm and gear transmission and a rotating shaft, the rotating shaft penetrates through a barrel of a working device, the motor drives the rotating shaft to rotate through the worm and gear transmission, and the motor drives the rotating shaft to rotate through the worm and gear transmission. Meanwhile, the utility model discloses a leaching system using the unblocking mechanism, and solves the problem that in the prior art, in a pipeline connected between adjacent tower kettles in polycrystalline silicon production, materials are prone to being gathered and deposited, scaling is further caused, and normal conveying of the materials is affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-blocking scrubbing towers, and particularly relates to a blockage removal mechanism and a scrubbing system using the mechanism. Background Art

[0002] A scrubbing tower is a gas-liquid separation device that can be used to remove harmful components or particles in a gas, or a specific washing liquid can be used to remove a certain component in a mixed gas. A scrubbing tower usually consists of a tower body, an air inlet, a sprayer, a liquid discharge port, packing, etc. When harmful gas enters the scrubbing tower, it first passes through the packing layer. The packing layer plays a role in supporting and dispersing liquid droplets, enabling the liquid to evenly cover the packing. Then, the liquid is sprayed into the tower through the sprayer. The liquid and the gas flow in the same direction. Through the longitudinal distribution and transverse flow of the liquid, the gas to be treated is fully contacted with the washing liquid, and finally the gas is washed. The washed gas is discharged from the top of the tower, and the washed liquid phase is discharged from the liquid discharge port.

[0003] In polysilicon production, a relatively large number of scrubbing towers are used. Especially in the waste gas treatment section, the scrubbing towers are used frequently. Due to the particularity of the gas to be washed (generally, the gas to be washed contains silane, silicon powder, metal chlorides, etc.), especially in the pipelines connecting adjacent scrubbing towers, material deposition is likely to occur (especially impurities such as silicon powder and metal chlorides are likely to deposit and scale), forming hard scale blocks and adhering to the inner wall of the pipeline, affecting the normal transportation of materials and further affecting the normal operation of the equipment.

[0004] In the prior art, corresponding workers are generally arranged to remove scale regularly and add appropriate reagents to clean the scrubbing tower to ensure the normal operation of the equipment. Summary of the Utility Model

[0005] The utility model aims to solve the problem that in the prior art, in polysilicon production, materials in the pipelines connecting adjacent tower kettles are likely to aggregate, deposit, and further scale, thus affecting the normal transportation of materials.

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

[0007] A blockage removal mechanism includes a motor, a worm and worm gear transmission, and a rotating shaft. The rotating shaft passes through the cylinder body of the working device, and the motor drives the rotating shaft to rotate through the worm and worm gear transmission. The other end of the rotating shaft is connected with a stirring roller with a gear.

[0008] Further, the gear is a long strip tooth or a spiral tooth.

[0009] Further, the gear is welded to the stirring roller.

[0010] Further, the gear and the stirring roller are integrally formed.

[0011] Further, a sealing structure is provided between the worm and worm gear transmission and the rotating shaft.

[0012] Further, a speed reducer is also provided between the motor and the worm and worm gear transmission. The speed reducer is fixedly connected with a fixing plate, and the fixing plate is connected with an "L"-shaped support plate through fasteners.

[0013] Further, the motor is an explosion-proof motor.

[0014] Further, a base is connected to the outer shell of the motor through fixing columns.

[0015] A flushing system using the blockage clearing mechanism as described above includes two flushing towers, which are communicated through a connecting pipe. The stirring roller and the rotating shaft of the blockage clearing mechanism sequentially pass through the first flushing tower, and the stirring roller extends into the connecting pipe. The gear on the stirring roller is used to agitate the material flow passing through the connecting pipe.

[0016] Further, the blockage clearing mechanism further includes a second rotating shaft. One end of the second rotating shaft is connected to the other end of the stirring roller. The second rotating shaft passes through the second flushing tower, and a sealing support seat is connected to the end side of the second rotating shaft far from the stirring roller.

[0017] Advantages of the present utility model:

[0018] First, in the present utility model, a blockage clearing mechanism with a clever structure, easy to process and easy to implement is proposed, including a rotating shaft and a stirring roller. At the same time, the motor and the worm and worm gear transmission cooperate to drive the rotation of the rotating shaft, and then drive the rotation of the stirring roller, which can achieve the effect of dredging the connecting pipe between the two working devices. At the same time, the rotating shaft in the cylinder of the working device also has a certain stirring effect on the material flow in the cylinder, preventing the material from aggregating into a mass. At the same time, the stirring roller is provided with a gear, which can improve the blockage clearing effect and the practicability of the original device. In addition, the blockage clearing mechanism can utilize some interfaces designed by the original device and directly install the blockage clearing mechanism without changing other structures of the original equipment, which is easy to promote and use.

[0019] Second, in the present utility model, the gear is preferably a long strip tooth or a spiral tooth, and the structure is simple and easy to process. Especially the spiral tooth also has a certain effect of pushing the material for directional disturbance, and the effect of mixing the material is better. At the same time, such a structure does not affect the normal transportation of the material.

[0020] Third, in the present utility model, the gear can be welded on the stirring roller, or the gear and the stirring roller are integrally formed, which can be selected according to needs. Integrally forming the gear and the stirring roller can avoid the appearance of welds affecting its corrosion resistance, but integrally forming requires making a special model.

[0021] 4. In the present utility model, a sealing structure is provided between the worm and worm gear transmission and the rotating shaft, which can ensure the sealing effect between the through-blocking mechanism and the working device, avoiding the leakage of materials. In addition, the motor is preferably an explosion-proof motor, providing safety assurance for the device, preventing dangerous accidents from occurring, and improving the safety of the equipment.

[0022] 5. In the present utility model, a speed reducer is further provided between the motor and the worm and worm gear transmission. The speed reducer is fixedly connected with a fixing plate, and the fixing plate is connected with an "L"-shaped support plate through fasteners, which is convenient for controlling the rotation speed of the rotating shaft by the motor. The fixing plate and the "L"-shaped support plate are convenient for ensuring the stable connection of components such as the motor, the speed reducer, the worm and worm gear transmission, and the rotating shaft, ensuring the stable operation of the equipment and extending the service life of the equipment.

[0023] 6. In the present utility model, a base is connected to the outer shell of the motor through a fixing column, which is convenient for fixing the motor and affecting the normal operation of the equipment.

[0024] 7. In the present utility model, a rinsing system using a through-blocking mechanism is proposed. After installing the through-blocking mechanism, the rinsing tower is not likely to have the situation of blockage in the pipeline connecting between two rinsing towers. For the rinsing tower with the added through-blocking mechanism, the number of cleaning times is reduced from 3 times per month to 1 time every 3 months, significantly extending the continuous working duration of the equipment.

[0025] 8. In the present utility model, a rinsing system with a preferred structure is proposed. The through-blocking mechanism further includes a second rotating shaft. One end of the second rotating shaft is connected to the other end of the stirring roller, and the second rotating shaft passes through the second rinsing tower. The second rotating shaft can play a certain role in stirring the materials in the second rinsing tower. A sealing support seat is connected to the end side of the second rotating shaft far from the stirring roller to ensure the sealing of the system and prevent the leakage of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the through-blocking mechanism in the present utility model.

[0027] Figure 2 is Figure 1 the front view of

[0028] Figure 3 is a structural diagram showing that the gear has spiral teeth.

[0029] Figure 4 is a structural diagram showing that the gear has strip-shaped teeth.

[0030] Figure 5 is a structural diagram showing that the through-blocking mechanism is installed on the cylinder body of the working device.

[0031] Figure 6 is the first schematic structural diagram of the rinsing system in the present utility model.

[0032] Figure 7It is the second structural diagram of the rinsing system in the present utility model.

[0033] Figure 8 It is the first structural diagram of another implementation manner of the rinsing system in the present utility model.

[0034] Figure 9 It is the second structural diagram of another implementation manner of the rinsing system in the present utility model.

[0035] Among them, 1. Motor; 2. Worm and worm gear transmission; 3. Rotating shaft; 4. Cylinder body; 5. Gear; 6. Stirring roller; 7. Sealing structure; 8. Connecting pipe; 9. Second rotating shaft; 10. Reducer; 11. Fixed plate; 12. "L"-shaped support plate; 13. Fixed column; 14. Base; 15. First rinsing tower; 16. Second rinsing tower; 17. Sealing support seat; 1.1. Outer shell; 5.1. Long strip teeth; 5.2. Spiral teeth; 15.1. Interface Ⅰ; 16.1. Interface Ⅱ. Specific implementation manner

[0036] The following further details the present utility model in conjunction with embodiments, but the implementation manners of the present utility model are not limited thereto.

[0037] Embodiment 1

[0038] For the convenience of the public to understand the present solution, in this embodiment, a blockage clearing mechanism is taken as an example and described in conjunction with the accompanying drawings. Refer to Figure 1 、 2 、5, the blockage clearing mechanism includes a motor 1, a worm and worm gear transmission 2 and a rotating shaft 3. The rotating shaft 3 passes through the cylinder body 4 of the working device. The motor 1 drives the rotating shaft 3 to rotate through the worm and worm gear transmission 2. A stirring roller 6 with a gear 5 is connected to the other end of the rotating shaft 3.

[0039] During use, start the motor 1. The motor 1 can drive the stirring roller 6 connected to the rotating shaft 3 to rotate at a certain speed through the worm and worm gear transmission 2 and the rotating shaft 3, and then drive the gear 5 to rotate. The gear 5 can drive the materials in the space where it is located to move, avoiding the materials from aggregating into lumps and depositing. The gear 5 can be designed with shorter teeth, such as Figure 1 , which can pass through the interface of the rinsing tower used in polysilicon production and can also pass through the pipe connecting between adjacent rinsing towers, and can avoid the materials (the materials generally contain silicon powder, metal chlorides, silane and solid impurities, etc.) from aggregating into lumps and depositing and scaling in the connected pipes, affecting the normal transportation of the logistics.

[0040] Preferably, a sealing structure 7 is provided between the worm and worm gear transmission 2 and the rotating shaft 3 to prevent the materials in the device from leaking into the working environment.

[0041] Furthermore, a speed reducer 10 is provided between the motor 1 and the worm and worm gear transmission 2. The speed reducer 10 is fixedly connected with a fixing plate 11. The fixing plate 11 is connected with an "L"-shaped support plate 12 through fasteners. The "L"-shaped support plate 12 is used to support and fix components such as the speed reducer 10 and the worm and worm gear transmission 2. The speed reducer 10 is preferably a cycloidal pinwheel speed reducer 10.

[0042] Preferably, the motor 1 is preferably an explosion-proof motor 1.

[0043] Preferably, a base 14 is connected to the outer shell 1.1 of the motor 1 through a fixing column 13, which facilitates the installation and fixation of the equipment.

[0044] Embodiment 2

[0045] This embodiment is a further optimization based on Embodiment 1. The difference is that, referring to Figure 4 or 3, the gear 5 is a long strip tooth 5.1 or a spiral tooth 5.2.

[0046] Furthermore, the gear 5 is welded to the stirring roller 6.

[0047] Embodiment 3

[0048] Compared with Embodiment 2, the difference of this embodiment is only that the gear 5 and the stirring roller 6 are integrally formed, referring to Figure 3 , Figure 3 the integrally formed structure of the spiral tooth 5.2 and the stirring roller 6 in

[0049] Embodiment 4

[0050] To facilitate the public's understanding of this solution, this embodiment takes a flushing system in the synthesis cold hydrogen chemical section of polysilicon production as an example, including two flushing towers, to further illustrate this solution.

[0051] In this embodiment, referring to Figure 6 , 7 , the two flushing towers are connected through a connecting pipe 8. At the corresponding position of the connecting pipe 8 on the first flushing tower 15, there is an interface Ⅰ15.1. At the corresponding position of the connecting pipe 8 on the second flushing tower 16, there is an interface Ⅱ16.1. The stirring roller 6 and the rotating shaft 3 of the through-blocking mechanism sequentially extend into the interface Ⅰ15.1 of the first flushing tower 15, and then pass through the first flushing tower 15. The rotating shaft 3 is in the first flushing tower 15, and the stirring roller 6 with the gear 5 is in the connecting pipe 8. At the same time, the through-blocking mechanism is fixed by a positioning component. Referring to Figure 7 , Figure 7 shows a structural schematic diagram of the two flushing towers connected by the connecting pipe 8.

[0052] Referring to Figure 1 , 2, 4. The blockage clearing mechanism includes a motor 1, a worm and worm gear transmission 2, and a rotating shaft 3. The rotating shaft 3 passes through the first rinsing tower 15. The motor 1 is connected to a speed reducer 10, and then drives the rotating shaft 3 to rotate through the worm and worm gear transmission 2. The other end of the rotating shaft 3 is connected to a stirring roller 6 with a gear 5, and the gear 5 part of the stirring roller 6 is located inside the connecting pipe 8. The motor 1 is an explosion-proof motor 1, and the speed reducer 10 is a cycloidal pinwheel speed reducer 10.

[0053] After the blockage clearing mechanism extends from the interface of the first rinsing tower 15 into the first rinsing tower 15 and the positioning and installation of the blockage clearing mechanism are completed, the motor 1 is started. The motor 1 drives the rotating shaft 3 to rotate through the speed reducer 10 and the worm and worm gear transmission 2, and then drives the stirring roller 6 with a gear 5 to rotate. The gear 5 can scrape and disperse the agglomerated and lumped materials in the connecting pipe 8, and can also stir the materials to prevent the conveyed materials from aggregating / lumping / blocking in the connecting pipe 8, ensuring the stable conveyance of the materials.

[0054] In this embodiment, the gear 5 is a spiral tooth 5.2. Refer to Figure 3 , the spiral tooth 5.2 can push the materials to be conveyed in the expected direction. The gear 5 and the stirring roller 6 are integrally formed, with a more stable structure and not easily corroded.

[0055] In this embodiment, a sealing structure 7 is provided between the worm and worm gear transmission 2 and the rotating shaft 3.

[0056] In this embodiment, the speed reducer 10 is fixedly connected with a fixing plate 11, and the fixing plate 11 is connected with an "L"-shaped support plate 12 through fasteners.

[0057] In this embodiment, a base 14 is connected to the outer shell 1.1 of the motor 1 through a fixing column 13.

[0058] Taking the rinsing system of this section as an example, before adding this blockage clearing mechanism, the rinsing tower generally needs to clean the inside of the connecting pipe 8 between adjacent rinsing towers after working continuously for 10 days. Otherwise, the connecting pipe 8 will be blocked and the rinsing effect will not be achieved. Each cleaning requires 3 man-hours and takes about 12 hours. After adding this blockage clearing mechanism, it can automatically scrape and convey the slag. The connecting pipe 8 of the rinsing tower is inspected and cleaned about once every 100 days, which requires 3 man-hours and takes about 8 hours.

[0059] Embodiment 5

[0060] Compared with Embodiment 4, the difference in this embodiment is that the blockage clearing mechanism further includes a second rotating shaft 9. One end of the second rotating shaft 9 is connected to the other end of the stirring roller 6. The second rotating shaft 9 passes through the second rinsing tower 16, and the end side of the second rotating shaft 9 away from the stirring roller 6 is connected to a sealing support seat 17. Refer to Figure 8 , 9, the second rotating shaft 9 rotates along with the stirring roller 6, which can also achieve the stirring effect on the materials in the second rinsing tower 16 to prevent the materials from aggregating into lumps.

Claims

1. A blocking mechanism, characterized in that: The invention comprises a motor (1), a worm gear transmission (2) and a rotating shaft (3), wherein the rotating shaft (3) passes through a barrel (4) of a working device, and the motor (1) drives the rotating shaft (3) to rotate via the worm gear transmission (2), and the other end of the rotating shaft (3) is connected to a stirring roller (6) with a gear (5).

2. A blocking mechanism according to claim 1, characterized in that: The gear (5) is a strip-shaped tooth (5.1) or a spiral-shaped tooth (5.2).

3. A blocking-clearing mechanism according to claim 2, characterized in that: The gear (5) is welded to the stirring roller (6).

4. A blocking-clearing mechanism according to claim 2, characterized in that: The gear (5) and the stirring roller (6) are integrally formed.

5. The blocking-clearing mechanism according to claim 1, characterized in that: A sealing structure (7) is provided between the worm gear transmission (2) and the rotating shaft (3).

6. A blocking-clearing mechanism according to claim 1, characterized in that: A reducer (10) is also provided between the motor (1) and the worm gear transmission (2); the reducer (10) is fixedly connected to a fixing plate (11); and the fixing plate (11) is connected to an "L"-shaped support plate (12) via a fastener.

7. The blocking-clearing mechanism according to claim 1, characterized in that: The motor (1) is an explosion-proof motor (1).

8. The blocking-clearing mechanism according to claim 1, characterized in that: A base (14) is connected to the housing (1.1) of the motor (1) via a fixing column (13).

9. A flushing system using the blockage clearing mechanism according to claim 1, characterized in that: The invention comprises two elution towers, which are connected to each other via a connecting pipe (8). The stirring roller (6) and the rotating shaft (3) of the unblocking mechanism pass through the first elution tower in sequence. The stirring roller (6) extends into the connecting pipe (8). The gear (5) on the stirring roller (6) is used to stir the logistics passing through the connecting pipe (8).

10. The rinsing system according to claim 9, characterized in that: The unblocking mechanism further comprises a second rotating shaft (9), one end of the second rotating shaft (9) being connected to the other end of the stirring roller (6), the second rotating shaft (9) passing through the second elution tower, and the end of the second rotating shaft (9) away from the stirring roller (6) being connected to a sealing support seat (17).

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