Single crystal oxide centralized collection device

Abstract

The utility model provides a single crystal oxide centralized collection device, and relates to the technical field of dust removal. The device comprises a stock bin, a negative pressure air draft module communicated with the stock bin, a conveying main pipe communicated with the stock bin, and a high negative pressure dust removal module arranged on the conveying main pipe, the high negative pressure dust removal module comprises a dust removal unit, the dust removal unit comprises a dust remover, the bottom of the dust remover is communicated with an oxide collecting barrel, and the bottom of the oxide collecting barrel is communicated with the conveying main pipe. The oxide collecting barrel is communicated with the conveying main pipe, and the negative pressure air draft module sucks to enable the oxide in the oxide collecting barrel to enter the stock bin through the conveying main pipe. According to the utility model, oxides in the oxide collecting barrel can be automatically collected and cleaned, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, specifically to a centralized collection device for single-crystal oxides. Background Technology

[0002] In the monocrystalline silicon industry, a large amount of oxides are generated during the pulling process of monocrystalline silicon rods. During the furnace dismantling process, a dust removal system equipped with high negative pressure is usually used to clean the oxides. In order to meet the needs of multiple simultaneous operations in a factory area, multiple sets of high negative pressure dust removal devices are usually configured to meet the on-site requirements.

[0003] Currently, the oxides in each high negative pressure dust removal system are collected in the collection bucket below the dust collector. The cleaning of the oxides in the collection bucket relies entirely on manual cleaning. If the cleaning is not timely, it will cause the entire system to be blocked, affecting the use of the equipment. In addition, there are problems such as high cleaning frequency, low efficiency, frequent transfer, and high labor intensity. Furthermore, dust dispersion during transfer and external loading will also cause pollution. Utility Model Content

[0004] The purpose of this invention is to develop a single-crystal oxide centralized collection device that can automatically collect and clean oxides in an oxide collection tank, thereby improving cleaning efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] A single-crystal oxide centralized collection device, comprising:

[0007] silos;

[0008] Negative pressure exhaust module, connected to the silo;

[0009] The main conveyor pipe connects to the silo.

[0010] The high negative pressure dust removal module is installed on the main conveying pipe;

[0011] The high negative pressure dust removal module includes a dust removal unit, which includes a dust collector. The bottom of the dust collector is connected to an oxide collection bucket, which is connected to the conveying main pipe. The negative pressure exhaust module draws in the oxides in the oxide collection bucket and sends them into the silo through the conveying main pipe.

[0012] Optionally, the main conveying pipe is connected to the bottom pipe of the oxide collection tank, and a control valve group is provided on the pipe between the oxide collection tank and the main conveying pipe.

[0013] Optionally, the top of the oxide collection tank is connected to an air inlet pipe, and an air inlet control valve is provided on the air inlet pipe.

[0014] Optionally, a connecting pipe is provided between the dust collector and the oxide collection tank, and a discharge control valve is provided on the connecting pipe.

[0015] Optionally, the dust collector is a cyclone dust collector or a bag dust collector.

[0016] Optionally, the number of dust removal units is at least two sets.

[0017] Optionally, the hopper includes a hopper body, the upper part of which is cylindrical and the lower part is conical. The conveying main pipe is connected to the upper part of the hopper body. A vibration motor and an inspection port are provided on the lower outer wall of the hopper body. A discharge control valve is provided at the bottom of the hopper body.

[0018] Optionally, the silo is equipped with a level gauge, and the top of the silo is equipped with a first dust collector connected to a negative pressure exhaust module.

[0019] Optionally, the negative pressure exhaust module includes an exhaust main pipe, an air duct, and an exhaust main pipe connected in sequence. The exhaust main pipe is connected to the top of the silo, and the air duct is provided with a maintenance valve, an exhaust control valve, a high-pressure air ring pump, and an exhaust control valve in sequence according to the airflow direction.

[0020] Optionally, at least two ducts are connected between the exhaust duct and the main exhaust duct.

[0021] The beneficial effects of this utility model are:

[0022] The collection of oxides in this invention is intelligently controlled, requiring no manual intervention and preventing untimely cleaning. This avoids blockages in the entire system caused by untimely cleaning, improves efficiency, saves labor, and reduces costs compared to manual cleaning. Furthermore, dust is kept completely concealed throughout the process, preventing dust from spreading and causing environmental damage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of the present utility model;

[0025] Figure 2 This is a structural diagram of the silo;

[0026] Figure 3 This is a structural diagram of a high negative pressure dust removal module;

[0027] Figure 4This is a structural diagram of a negative pressure exhaust module.

[0028] Attached reference numerals: 1. Hopper; 11. First dust collector; 12. Hopper body; 13. Vibrating motor; 14. Inspection port; 15. Unloading control valve; 16. Level gauge; 2. Negative pressure exhaust module; 21. Exhaust main pipe; 22. Outlet main pipe; 23. Air duct; 24. Inspection valve; 25. Exhaust control valve; 26. High-pressure air ring pump; 27. Outlet control valve; 3. High negative pressure dust removal module; 31. Oxide collection tank; 32. Control valve group; 33. Inlet pipe; 34. Connecting pipe; 35. Cyclone dust collector; 36. Baghouse dust collector; 4. Conveying main pipe; 5. Transport vehicle. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figures 1-4 As shown, this utility model discloses a centralized collection device for single crystal oxides, including a silo 1, a high negative pressure dust removal module 3, and a negative pressure exhaust module 2. The silo 1 is connected to a conveying main pipe 4, the high negative pressure dust removal module 3 is located on the conveying main pipe 4, and the negative pressure exhaust module 2 is located on the top of the silo 1.

[0033] The silo 1 includes a silo body 12, which is cylindrical at the top and conical at the bottom. The main conveying pipe 4 is connected to the upper part of the silo body 12. A vibrating motor 13 and an inspection port 14 are installed on the lower outer wall of the silo body 12. A discharge control valve 15 is installed at the bottom of the silo body 12. The bottom of the silo body 12 can be connected to the pipeline of the transport vehicle 5. After the discharge control valve 15 is opened, the transport vehicle 5 can suck up the oxide in the silo body 12 for transfer. A level gauge 16 is installed inside the silo body 12, and a first dust collector 11 is installed at the top of the silo body 12.

[0034] The high negative pressure dust removal module 3 includes two dust removal units connected to the conveying main pipe 4. Each dust removal unit includes an oxide collection bucket 31. The conveying main pipe 4 is connected to the bottom pipe of the oxide collection bucket 31. A control valve group 32 is also provided on the pipe between the oxide collection bucket 31 and the conveying main pipe 4.

[0035] The top of the oxide collection tank 31 is connected to an air inlet pipe 33, and an air inlet control valve is provided on the air inlet pipe 33.

[0036] The top of the oxide collection bucket 31 is also connected to a connecting pipe 34, which is equipped with a discharge control valve. The tops of the connecting pipes 34 of the two dust removal units are respectively connected to the second dust collector and the third dust collector. The second dust collector is a cyclone dust collector 35, and the third dust collector is a bag dust collector 36.

[0037] The negative pressure exhaust module 2 includes an exhaust main pipe 21 and an exhaust main pipe 22. The exhaust main pipe 21 is connected to the first dust collector 11. Two air ducts 23 are connected between the exhaust main pipe 21 and the exhaust main pipe 22. The airflow in the exhaust main pipe 21 flows into the exhaust main pipe 22 after passing through the two air ducts 23. The air ducts 23 are equipped with a maintenance valve 24, an exhaust control valve 25, a high-pressure air ring pump 26, and an exhaust control valve 27 in sequence according to the airflow direction. One of the two air ducts 23 is in use and the other is on standby.

[0038] When the high negative pressure dust removal system is working, the oxides are collected by the two dust removal units and collected in the oxide collection bucket 31.

[0039] When the oxide collection tank 31 is full of oxides, the discharge control valve is closed, the valve between the hopper 1 and the oxide collection tank 31 is opened, the negative pressure exhaust module 2 operates to perform suction, and at the same time, the air intake control valve is opened, the air intake pipe 33 injects airflow into the top of the oxide collection tank 31, the oxides in the oxide collection tank 31 are sucked into the hopper 1, the first dust collector 11 removes the oxides in the upward airflow, the airflow is discharged through the negative pressure exhaust module 2, and the high pressure air ring pump 26 automatically switches on and off according to the suction situation.

[0040] The two dust removal units can clean the oxide collection tank 31 alternately or simultaneously. When they alternate, one of the dust removal units can continue to remove dust. In addition, the suction of oxides in the oxide collection tank 31 can be carried out at regular intervals, so there will be no situation where cleaning is not timely.

[0041] Once the oxides in silo 1 are full, the level gauge 16 sends a signal, which is received by the oxide environmental treatment unit. After the transport vehicle 5 arrives on site, its pipeline connects to the bottom interface of silo 1, and the unloading control valve 15 is opened. The transport vehicle 5 begins to suck up the oxides, while simultaneously activating the vibration motor 13 on silo 1 to ensure the oxides are emptied. After suction is complete, the unloading control valve 15 is closed. The entire system is controlled by a PLC program, achieving intelligent operation without manual intervention.

[0042] The collection of oxides in this invention is intelligently controlled, requiring no manual intervention and preventing untimely cleaning. This avoids blockages in the entire system caused by untimely cleaning, improves efficiency, saves labor, and reduces costs compared to manual cleaning. Furthermore, dust is kept completely concealed throughout the process, preventing dust from spreading and causing environmental damage.

[0043] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A single crystal oxide centralized collection apparatus, characterized by, include: silos; Negative pressure exhaust module, connected to the silo; The main conveyor pipe connects to the silo. The high negative pressure dust removal module is installed on the main conveying pipe; The high negative pressure dust removal module includes a dust removal unit, which includes a dust collector. The bottom of the dust collector is connected to an oxide collection bucket, which is connected to the conveying main pipe. The negative pressure exhaust module draws in the oxides in the oxide collection bucket and sends them into the silo through the conveying main pipe.

2. The single crystal oxide concentrating device of claim 1, wherein, The main conveying pipe is connected to the bottom pipe of the oxide collection tank, and a control valve group is provided on the pipe between the oxide collection tank and the main conveying pipe.

3. The single-crystal oxide centralized collection device according to claim 2, characterized in that, The top of the oxide collection tank is connected to an air inlet pipe, and an air inlet control valve is installed on the air inlet pipe.

4. The single-crystal oxide centralized collection device according to claim 1, characterized in that, A connecting pipe connects the dust collector and the oxide collection tank, and a discharge control valve is installed on the connecting pipe.

5. The single-crystal oxide centralized collection device according to claim 1, characterized in that, The dust collector is either a cyclone dust collector or a bag filter dust collector.

6. The single-crystal oxide centralized collection device according to claim 1, characterized in that, The number of dust removal units is at least two sets.

7. The single-crystal oxide centralized collection device according to claim 1, characterized in that, The silo includes a silo body, the upper part of which is cylindrical and the lower part is conical. The conveying main pipe is connected to the upper part of the silo body. A vibration motor and an inspection port are provided on the lower outer wall of the silo body. A discharge control valve is provided at the bottom of the silo body.

8. The single-crystal oxide centralized collection device according to claim 7, characterized in that, The silo is equipped with a level gauge, and the top of the silo is equipped with a first dust collector that is connected to the negative pressure exhaust module.

9. The single-crystal oxide centralized collection device according to claim 1, characterized in that, The negative pressure ventilation module includes a main ventilation pipe, an air duct, and an exhaust pipe connected in sequence. The main ventilation pipe is connected to the top of the silo. The air duct is equipped with a maintenance valve, a ventilation control valve, a high-pressure air ring pump, and an exhaust control valve in sequence according to the airflow direction.

10. The single-crystal oxide centralized collection device according to claim 9, characterized in that, At least two ducts connect the main exhaust pipe and the main ventilation pipe.

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