Silicon powder collecting system and battery processing line

Abstract

The utility model discloses a silicon powder collecting system and battery processing line, the silicon powder collecting system comprises a filter device, a storage device and a power device, the filter device is used for filtering silicon powder in gas, the storage device is arranged on one side of the filter device, the storage device is used for storing the silicon powder and depositing the silicon powder, the storage device is provided with a discharge port, and the discharge port is connected with the power device. The discharging port is used for discharging the silicon powder in the storage device, one end of the power device is connected to the filtering device through a pipeline, the other end of the power device is connected to the storage device through a pipeline, and the power device is used for pumping the silicon powder in the filtering device to the storage device. By adopting the scheme of the utility model, the silicon powder can be well separated from the gas, and the silicon powder can be conveniently bagged and transported.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic, in particular to a silicon powder collection system and a battery processing line. Background Art

[0002] In the photovoltaic industry, in some process of battery production, such as in the POLY-SI (Polycrystalline Silicon) process, exhaust gas is usually generated, and the exhaust gas contains a certain amount of silicon powder. If the exhaust gas is directly discharged, it will cause waste of silicon materials. Therefore, in the related art, in order to reduce the waste of silicon materials, the silicon powder in the exhaust gas is usually collected and filtered by a dust removal device, and the filtered silicon powder is bagged. However, since the exhaust gas usually needs to be powered by a fan, when directly bagging the silicon powder filtered by the dust removal device, the packaging bag will contain a large amount of gas, and the specific gravity of the silicon powder is low, resulting in inconvenient transportation of the packaging bag, and further increasing the transportation cost of the packaging bag. Summary of the Utility Model

[0003] The embodiment of the utility model discloses a silicon powder collection system and a battery processing line, which can better separate the silicon powder from the gas and facilitate the bagging and transportation of the silicon powder.

[0004] To achieve the above object, in the first aspect, the utility model discloses a silicon powder collection system, including:

[0005] A filtering device for filtering silicon powder in the gas;

[0006] A storage device provided on one side of the filtering device for storing the silicon powder and causing the silicon powder to deposit. The storage device is provided with a discharge port for discharging the silicon powder in the storage device; and

[0007] A power device, one end of which is connected to the filtering device through a pipeline, and the other end of which is connected to the storage device through a pipeline. The power device is used for pumping the silicon powder in the filtering device to the storage device.

[0008] As an optional implementation manner, in the embodiment of the first aspect of the utility model, the silicon powder collection system further includes a silicon powder collection component and a transportation device. The silicon powder collection component is provided below the discharge port for receiving the silicon powder discharged from the discharge port, and the transportation device is used for transporting the silicon powder collection component.

[0009] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, the silicon powder collection system further includes a hanging member disposed below the discharge port, and the hanging member is configured to hang the silicon powder collection member or disengage from the silicon powder collection member to place the silicon powder collection member on the transportation device.

[0010] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, a weighing member is provided between the storage device and the hanging member, and the weighing member is used to detect the gravity of the silicon powder collection member;

[0011] The hanging member is configured to hang the silicon powder collection member or disengage from the silicon powder collection member according to the gravity detected by the weighing member, and the discharge port is configured to open or close according to the gravity detected by the weighing member.

[0012] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, a height sensor is provided in the storage device, and the height sensor is used to detect the height of the silicon powder in the storage device, and the discharge port is configured to open or close according to the height detected by the height sensor.

[0013] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, a valve is provided at the discharge port, the valve is electrically connected to the height sensor, and the valve is configured to open or close the discharge port according to the height detected by the height sensor.

[0014] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, the filtering device is provided with a plurality of discharge ports, and the silicon powder collection system further includes a plurality of temporary storage devices respectively corresponding to the plurality of discharge ports to receive the silicon powder discharged from each discharge port, and one end of the power device is connected to the plurality of temporary storage devices through pipes, and the power device is used to pump the silicon powder in the plurality of temporary storage devices into the storage device.

[0015] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, at least a part of the storage device is configured as a funnel structure, and the discharge port is provided at the bottom of the funnel structure.

[0016] As an alternative embodiment, in the embodiment of the first aspect of the present utility model, an air outlet is provided at the top of the storage device, and the air outlet is used to discharge the gas in the storage device.

[0017] In a second aspect, the present utility model also discloses a battery processing line, which includes processing equipment and the silicon powder collection system as described in the first aspect above. The silicon powder collection system is arranged on one side of the processing equipment, and the filtering device of the silicon powder collection system is communicated with the processing equipment to receive the gas discharged from the processing equipment.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] In the silicon powder collection system and the battery processing line provided by the embodiments of the present utility model, during the process of battery production, the generated gas is introduced into the filtering device. The filtering device can filter the silicon powder in the gas. By setting the power device and the storage device, the power device can pump the silicon powder in the filtering device into the storage device. Although air will be pumped into the storage device simultaneously during the process of the power device pumping the silicon powder, the silicon powder will deposit in the storage device, separating the silicon powder from the air. Then, by bagging the silicon powder discharged from the discharge port of the storage device, there is less air in the obtained packaging bag, and the specific gravity of the silicon powder is higher, which is convenient for bagging and transporting the silicon powder, and thus helps to reduce the transportation cost of the silicon powder. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of the silicon powder collection system disclosed in the first aspect of the embodiments of the present application;

[0022] Figure 2 is a structural schematic diagram of the storage device, the transportation device, the hanging member, the bracket and the weighing member disclosed in the first aspect of the embodiments of the present application;

[0023] Figure 3 is a schematic structural diagram of the processing equipment disclosed in the second aspect of the embodiments of the present application.

[0024] Reference Signs: 1, silicon powder collection system; 10, filtering device; 11, storage device; 110, discharge port; 111, height sensor; 112, valve; 113, funnel structure; 114, air outlet; 115, breathing valve; 12, power device; 13, transportation device; 14, hanging member; 15, bracket; 16, weighing member; 17, temporary storage device; 2, battery processing system; 20, processing equipment. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Next, the technical solutions of the present invention will be further described in conjunction with the embodiments and the accompanying drawings.

[0027] Please refer to Figure 1 , wherein, Figure 1 The dashed line in is a schematic diagram of the pipeline connection between components. In the first aspect of the embodiments of the present invention, a silicon powder collection system 1 is provided. The silicon powder collection system 1 includes a filtering device 10, a storage device 11, and a power device 12. The filtering device 10 is used to filter silicon powder in the gas. The storage device 11 is arranged on one side of the filtering device 10. The storage device 11 is used to store silicon powder and make the silicon powder deposit. The storage device 11 is provided with a discharge port 110, and the discharge port 110 is used to discharge the silicon powder in the storage device 11. One end of the power device 12 is connected to the filtering device 10 through a pipeline, and the other end of the power device 12 is connected to the storage device 11 through a pipeline. The power device 12 is used to pump the silicon powder in the filtering device 10 to the storage device 11.

[0028] For the silicon powder collection system 1 provided in the first aspect of the embodiments of the present invention, during the battery production process, the generated gas is introduced into the filtering device 10. The filtering device 10 can filter the silicon powder in the gas. By setting the power device 12 and the storage device 11, the power device 12 can pump the silicon powder in the filtering device 10 into the storage device 11. Although air will be pumped into the storage device 11 simultaneously during the process of the power device 12 pumping the silicon powder, the silicon powder will deposit in the storage device 11, separating the silicon powder from the air. Then, by bagging the silicon powder discharged from the discharge port 110 of the storage device 11, there is less air in the obtained packaging bag, and the specific gravity of the silicon powder is higher, which is convenient for the bagging and transportation of the silicon powder, and thus helps to reduce the transportation cost of the silicon powder. In addition, the power device 12 is connected to the filtering device 10 and the storage device 11 through pipelines, making the transportation process of the silicon powder a sealed transportation, avoiding the situation that the silicon powder escapes into the air and pollutes the environment during transportation.

[0029] Optionally, the filtering device 10 can be a dust collector or a silicon powder filter, etc., which can be specifically selected according to the actual situation and is not specifically limited in this example.

[0030] Optionally, the power device 12 can be a vacuum adsorption device or a negative pressure fan, etc., which can be specifically selected according to the actual situation and is not specifically limited in this embodiment.

[0031] Please refer to Figure 2 , in some embodiments, the silicon powder collection system 1 further includes a silicon powder collection component (not shown) and a transportation device 13. The silicon powder collection component is disposed below the discharge port 110. The silicon powder collection component is configured to receive the silicon powder discharged from the discharge port 110, and the transportation device 13 is configured to transport the silicon powder collection component.

[0032] In this way, by providing the silicon powder collection component, the silicon powder discharged from the discharge port 110 can be collected, and the specific gravity of the silicon powder collected in the silicon powder collection component is relatively high, reducing the transportation cost of the silicon powder. After the silicon powder collection component has collected the silicon powder, the transportation device 13 can transport the silicon powder collection component, eliminating the need for manual transportation of the silicon powder and improving the automation level of the silicon powder collection system 1.

[0033] Optionally, the silicon powder collection component can be a bag or a box, etc., and can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0034] Optionally, the transportation device 13 can be a conveyor belt or a transport cart, etc., and can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0035] In some embodiments, the silicon powder collection system 1 further includes a hanging component 14. The hanging component 14 is disposed below the discharge port 110. The hanging component 14 is configured to hang the silicon powder collection component, or to disengage from the silicon powder collection component to place the silicon powder collection component on the transportation device 13.

[0036] In this way, by providing the hanging component 14, the silicon powder collection component can be directly hung on the hanging component 14, facilitating the installation and fixation of the silicon powder collection component. At the same time, after the silicon powder collection component has collected the silicon powder, the hanging component 14 can disengage the silicon powder collection component from the hanging component 14 and place the silicon powder collection part on the transportation device 13. The transportation device 13 can continuously transport the silicon powder collection component with the collected silicon powder, and the transportation device 13 does not need to stop, improving the overall production efficiency of the silicon powder collection system 1.

[0037] Optionally, the number of the hanging components 14 can be one or more, and can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0038] Optionally, the hanging component 14 can be directly disposed on the storage device 11, or a bracket 15 can be provided. The bracket 15 can carry the storage device 11, and then the hanging component 14 is disposed on the bracket 15, which can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0039] Optionally, the hanging component 14 can be a mechanical claw or a hook, etc., and can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0040] In some embodiments, a weighing component 16 is provided between the storage device 11 and the hanging component 14. The weighing component 16 is used to detect the gravity of the silicon powder collection component. The hanging component 14 is configured to hang or disengage from the silicon powder collection component according to the gravity detected by the weighing component 16, and the discharge port 110 is configured to open or close according to the gravity detected by the weighing component 16. In this embodiment, the weighing component 16 can be provided between the bracket 15 and the hanging component 14.

[0041] When the weighing component 16 detects that the tension on the hanging component 14 is the first preset value, that is, when an empty silicon powder collection component is hung on the hanging component 14, the control discharges the port 110 to open, so that the silicon powder in the storage device 11 is discharged from the discharge port 110 to the silicon powder collection component. When the weighing component 16 detects that the tension on the hanging component 14 is the second preset value, that is, when the silicon powder collection component is already full of silicon powder, the silicon powder collection component hung on the hanging component 14 is disengaged from the hanging component 14, so as to be placed on the transport device 13 for transportation. At the same time, the control discharges the port 110 to close to avoid the situation of waste caused by the silicon powder not being received by the silicon powder collection component.

[0042] Optionally, the first preset value can be set according to the weight of the empty silicon powder collection component, and the second preset value can be set according to the maximum capacity of the silicon powder collection component, and the second preset value is greater than the first preset value. For example, the first preset value is 10N and the second preset value is 110N, or the first preset value is 20N and the second preset value is 320N, etc. Specifically, it can be selected according to the actual situation and is not specifically limited in this embodiment.

[0043] Optionally, the weighing component 16 can be a tension sensor or a spring dynamometer, etc. Specifically, it can be selected according to the actual situation and is not specifically limited in this embodiment.

[0044] Among them, Figure 2 The dotted line in indicates the positions of the height sensor 111 and the valve 112. In some embodiments, a height sensor 111 is provided in the storage device 11. The height sensor 111 is used to detect the height of the silicon powder in the storage device 11, and the discharge port 110 is configured to open or close according to the height detected by the height sensor 111.

[0045] In this way, the height sensor 111 can detect the height of the silicon powder in the storage device 11, that is, detect the current storage amount of the silicon powder in the storage device 11. When the height sensor 111 detects that the height of the silicon powder in the storage device 11 is too high, the discharge port 110 is opened, and the silicon powder in the storage device 11 is discharged from the discharge port 110, avoiding too much silicon powder in the storage device 11 and being unable to continue receiving silicon powder. At the same time, it also avoids the situation that the silicon powder height is too high and is not conducive to the deposition of the silicon powder in the storage device 11.

[0046] Optionally, the height sensor 111 can be a laser sensor, an infrared sensor, etc., and can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0047] In some embodiments, a valve 112 is provided at the discharge port 110. The valve 112 is electrically connected to the height sensor 111, and the valve 112 is configured to open or close the discharge port 110 according to the height detected by the height sensor 111. In this embodiment, the valve 112 can be a solenoid valve.

[0048] By providing the valve 112 at the discharge port 110, when the height sensor 111 detects that the height of the silicon powder in the storage device 11 is too high, the valve 112 can be controlled to open, so that the discharge port 110 is opened, so that the silicon powder in the storage device 11 can be discharged through the discharge port 110, further improving the automation degree of the silicon powder collection system 1.

[0049] In other embodiments, a manual valve can also be provided at the discharge port 110, and the opening and closing of the discharge port 110 can be controlled by manually controlling the manual valve.

[0050] Optionally, the storage device 11 can be a tank body, a box body, etc., and can be specifically selected according to the actual situation, and is not specifically limited in this embodiment.

[0051] In some embodiments, at least a part of the storage device 11 is configured as a funnel structure 113, and the discharge port 110 is provided at the bottom of the funnel structure 113. By setting at least a part of the storage device 11 as the funnel structure 113, under the action of gravity, it is beneficial for the silicon powder to deposit at the bottom of the funnel structure 113, and the discharge port 110 is provided at the bottom of the funnel structure 113, so that it is beneficial to make the discharged gas less and the specific gravity of the silicon powder higher, further reducing the transportation cost of the silicon powder.

[0052] In some embodiments, an air outlet 114 is provided at the top of the storage device 11, and the air outlet 114 is used to discharge the gas in the storage device 11. Since the power device 12 continuously pumps the gas and the silicon powder into the storage device 11 at the same time, by providing the air outlet 114 at the top of the storage device 11, the gas can be discharged from the air outlet 114 in time, avoiding explosion due to excessive air pressure in the storage device 11.

[0053] Optionally, a breathing valve 115 can be provided in the air outlet 114, which can be automatically opened when the air pressure in the storage device 11 exceeds the third preset value, so that the gas in the storage device 11 can be discharged from the air outlet 114 in time, and at the same time, the situation of the silicon powder escaping from the air outlet 114 is also reduced.

[0054] Since the volume of the filtering device 10 is usually large, a single discharge port cannot effectively discharge all the filtered silicon powder. Please refer to Figure 1 again. In some embodiments, the filtering device 10 is provided with a plurality of discharge ports, and the silicon powder collection system 1 further includes a plurality of temporary storage devices 17. The plurality of temporary storage devices 17 are respectively arranged corresponding to the plurality of discharge ports to receive the silicon powder discharged from each discharge port. One end of the power device 12 is connected to the plurality of temporary storage devices 17 through pipelines. The power device 12 is used to pump the silicon powder in the plurality of temporary storage devices 17 into the storage device 11.

[0055] In this way, the plurality of temporary storage devices 17 can respectively receive the silicon powder discharged from the plurality of discharge ports, temporarily store the silicon powder, and then pump the silicon powder in the plurality of temporary storage devices 17 into the storage device 11 through the power device 12. After the silicon powder deposited in the storage device 11 is uniformly packaged, there is no need to set up a plurality of storage devices 11 and a plurality of transportation devices 13, reducing the number of devices in the silicon powder collection system 1, facilitating the management of the silicon powder collection system 1, and at the same time reducing the construction cost of the silicon powder collection system 1.

[0056] Please refer to Figure 3 again. In the second aspect of the embodiments of the present invention, a battery processing line 2 is provided, including processing equipment 20 and the silicon powder collection system 1 in the first aspect of the above embodiments. The silicon powder collection system 1 is arranged on one side of the processing equipment 20, and the filtering device 10 of the silicon powder collection system 1 is communicated with the processing equipment 20 to receive the exhaust gas discharged from the processing equipment 20.

[0057] In the battery processing line 2 provided in the second aspect of the embodiments of the present invention, during the production process of the processing equipment 20, the gas generated by the processing equipment 20 contains a certain amount of silicon powder. The battery processing line 2 adopts the silicon powder collection system 1 provided in the first aspect of the embodiments of the present invention. The filtering device 10 can filter the silicon powder in the gas generated by the processing equipment 20. By setting the power device 12 and the storage device 11, the power device 12 can pump the silicon powder in the filtering device 10 into the storage device 11. Although air will be pumped into the storage device 11 simultaneously during the process of the power device 12 pumping the silicon powder, the silicon powder will deposit in the storage device 11, separating the silicon powder from the air. Then, by bagging the silicon powder discharged from the discharge port 110 of the storage device 11, there is less air in the obtained packaging bag, and the specific gravity of the silicon powder is higher, facilitating the bagging and transportation of the silicon powder and reducing the transportation cost of the silicon powder. In addition, the power device 12 is connected to the filtering device 10 and the storage device 11 through pipelines, so that the transportation process of the silicon powder is a sealed transportation, avoiding the silicon powder escaping into the air during transportation and polluting the environment.

[0058] Optionally, the processing device 20 may be a processing device 20 for a POLY-SI (Polycrystalline Silicon) process, or a processing device 20 for other processes in the battery production process, which can be specifically selected according to the actual situation and is not specifically limited in this embodiment.

[0059] The above has introduced in detail the silicon powder collection system and the battery processing line disclosed in the embodiments of the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the silicon powder collection system and the battery processing line of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A silicon powder collection system, characterized in that: include: A filtering device, wherein the filtering device is used to filter silicon powder in the gas; A storage device, the storage device is arranged at one side of the filtering device, the storage device is used to store the silicon powder and allow the silicon powder to settle, the storage device is provided with a discharge port, and the discharge port is used to discharge the silicon powder in the storage device; as well as A power device, one end of the pipeline of the power device is connected to the filtering device, and the other end of the pipeline of the power device is connected to the storage device, and the power device is used to pump the silicon powder in the filtering device to the storage device.

2. The silicon powder collection system according to claim 1, characterized in that: The silicon powder collecting system further includes a silicon powder collecting component and a transportation device. The silicon powder collecting component is arranged below the discharge port, and is used to receive the silicon powder discharged from the discharge port. The transportation device is used to transport the silicon powder collecting component.

3. The silicon powder collection system according to claim 2, characterized in that: The silicon powder collection system further includes a hanging component, which is disposed below the discharge port and is configured to hang the silicon powder collection component, or to be detached from the silicon powder collection component to place the silicon powder collection component on the transport device.

4. The silicon powder collection system according to claim 3, characterized in that: A weighing component is provided between the storage device and the hanging component, and the weighing component is used to detect the gravity of the silicon powder collecting component; The hanging component is configured to hang the silicon powder collecting component or detach from the silicon powder collecting component according to the gravity detected by the weighing component, and the discharge port is configured to be opened or closed according to the gravity detected by the weighing component.

5. The silicon powder collection system according to any one of claims 1 to 4, characterized in that: A height sensor is provided in the storage device, and the height sensor is used to detect the height of the silicon powder in the storage device. The discharge port is configured to be opened or closed according to the height detected by the height sensor.

6. The silicon powder collection system according to claim 5, characterized in that: The discharge port is provided with a valve, the valve is electrically connected to the height sensor, and the valve is configured to open or close the discharge port according to the height detected by the height sensor.

7. The silicon powder collection system according to any one of claims 1 to 4, characterized in that: The filtering device is provided with a plurality of discharge ports, and the silicon powder collection system further comprises a plurality of temporary storage devices, which are respectively arranged corresponding to the plurality of discharge ports to receive the silicon powder discharged from each of the discharge ports. A pipe at one end of the power device is connected to the plurality of temporary storage devices, and the power device is used to pump the silicon powder in the plurality of temporary storage devices to the storage device.

8. The silicon powder collection system according to any one of claims 1 to 4, characterized in that: At least a portion of the storage device is configured as a funnel structure, and the discharge port is arranged at the bottom of the funnel structure.

9. The silicon powder collection system according to any one of claims 1 to 4, characterized in that: A gas outlet is provided on the top of the storage device, and the gas outlet is used to discharge the gas in the storage device.

10. A battery processing line, characterized in that: It comprises processing equipment and a silicon powder collection system as described in any one of claims 1 to 9, wherein the silicon powder collection system is arranged on one side of the processing equipment, and the filtering device of the silicon powder collection system is connected to the processing equipment to receive the gas exhausted by the processing equipment.

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