Filter cloth cleaning device

Abstract

The utility model provides a filter cloth cleaning device which comprises a cleaning assembly and a dust collection assembly, the cleaning assembly comprises a gas source, a cleaning container and a nozzle piece, the dust collection assembly comprises a first dust collection piece and a second dust collection piece, and the gas source communicates with the nozzle piece and is constructed to provide cleaning gas for the nozzle piece; the nozzle piece is configured to spray cleaning gas to the surface of the filter cloth, the cleaning container is provided with a cleaning cavity, the nozzle piece is located in the cleaning cavity, the cleaning cavity is provided with a first dust collection port and a second dust collection port, the first dust collection port is located above the cleaning cavity, and the second dust collection port is located below the cleaning cavity; the second dust collecting piece is communicated with the second dust collecting opening. The cleaning device for the filter cloth is energy-saving and environment-friendly.

Description

Technical Field

[0001] The present application relates to the technical field of filter cloth cleaning equipment, and in particular to a filter cloth cleaning device. Background Art

[0002] Lithium-ion batteries are mainly composed of positive electrode materials, negative electrode materials, diaphragms and electrolytes. Currently, ternary materials are mainly used as positive electrode materials. In order to remove impurities in the ternary materials, a filter press washing device is required to wash the ternary materials. The filter press washing device includes multiple filter press washing plates. The filter press washing plates have a filter chamber. The filter chamber is provided with a filter cloth. When the ternary material is rinsed with a medium such as alkaline solution or deionized water, the filter cloth can intercept and filter impurities in the ternary material. After the filter cloth has worked for a period of time, the filter cloth needs to be cleaned to remove the filter residue on the filter cloth.

[0003] In the related art, the filter cloth is mainly cleaned by water washing, that is, a water pump is used to pressurize the water in the cleaning tank to a certain pressure, and then the filter cloth is rinsed, and the generated wastewater enters the separator for separation and treatment. However, this cleaning method requires more pure water, consumes a lot of water, and generates more wastewater. The wastewater treatment is more complicated and energy-consuming. Utility Model Content

[0004] Based on this, the present application provides a filter cloth cleaning device, which is energy-saving and environmentally friendly.

[0005] The filter cloth cleaning device provided in the present application includes a cleaning component and a dust collecting component, the cleaning component includes an air source, a cleaning container and a nozzle part, the dust collecting component includes a first dust collecting part and a second dust collecting part, the air source is connected to the nozzle part and is constructed so that the nozzle part provides cleaning gas, the nozzle part is constructed to spray cleaning gas onto the surface of the filter cloth, the cleaning container has a cleaning chamber, the nozzle part is located in the cleaning chamber, the cleaning chamber has a first dust collecting port and a second dust collecting port, the first dust collecting port is located above the cleaning chamber, the second dust collecting port is located below the cleaning chamber, the first dust collecting part is connected to the first dust collecting port, and the second dust collecting part is connected to the second dust collecting port.

[0006] In a possible implementation, the filter cloth cleaning device provided in the present application has a plurality of nozzle members arranged opposite to each other and configured to spray cleaning gas toward two opposite sides of the filter cloth.

[0007] In a possible implementation, in the filter cloth cleaning device provided in the present application, the cleaning chamber has two bottom walls inclined relative to a horizontal plane, and the second dust collecting port is located between the two bottom walls.

[0008] In a possible implementation, in the filter cloth cleaning device provided in the present application, the dust collecting assembly also includes a fan unit, the first dust collecting part is connected between the cleaning chamber and the fan unit, and the fan unit is constructed to provide suction force for the first dust collecting part.

[0009] In a possible implementation, the filter cloth cleaning device provided in the present application, the cleaning assembly further includes a first heat exchange element, the first heat exchange element is connected between the gas source and the cleaning chamber, and is configured to heat the cleaning gas.

[0010] In a possible implementation, the filter cloth cleaning device provided in the present application, the dust collecting assembly also includes a second heat exchange element, the second heat exchange element is connected between the cleaning chamber and the first dust collecting element, and the second heat exchange element is configured to dry the filter residue.

[0011] In one possible implementation, the filter cloth cleaning device provided in the present application has a first dust collecting component having a dust collecting chamber, a filter component is provided in the dust collecting chamber to separate the dust collecting chamber into a first dust collecting chamber and a second dust collecting chamber, the first dust collecting port is connected to the first dust collecting chamber, and the first dust collecting chamber has a discharge port, and the fan unit is connected to the second dust collecting chamber.

[0012] In a possible implementation, the filter cloth cleaning device provided in the present application further includes a control valve assembly, the control valve assembly includes a first control valve, the first control valve is arranged between the air source and the cleaning chamber, and the first control valve is constructed to control the on-off state between the air source and the cleaning chamber.

[0013] In a possible implementation, the filter cloth cleaning device provided in the present application further includes a second control valve, which is arranged between the fan unit and the cleaning chamber, and the second control valve is constructed to control the on-off state between the first dust collecting part and the cleaning chamber.

[0014] In a possible implementation, the filter cloth cleaning device provided in the present application further includes a detection unit and a third control valve, the detection unit is configured to detect the pressure of the dust collecting chamber, the third control valve is arranged at the discharge port, and the third control valve is configured to open the discharge port when the pressure value of the detection unit exceeds a preset threshold value.

[0015] The filter cloth cleaning device provided by the present application includes a cleaning component and a dust collecting component, the cleaning component includes an air source, a cleaning container and a nozzle part, the cleaning container includes a cleaning chamber, a first dust collecting port and a second dust collecting port, the dust collecting component includes a first dust collecting part and a second dust collecting part, the air source is provided to provide cleaning gas to the nozzle part, the nozzle part is provided to spray the cleaning gas evenly to the surface of the filter cloth to flush the filter residue on the filter cloth, the cleaning chamber is provided to accommodate the filter cloth and collect the filter residue, the first dust collecting port is provided to connect to the first dust collecting part, the second dust collecting port is provided to connect to the second dust collecting part, the first dust collecting part is provided to collect the drier filter residue, and the second dust collecting part is provided to collect the wetter filter residue. Therefore, the filter cloth cleaning device provided by the present application uses clean gas to flush the filter cloth, does not need to consume water resources and treat wastewater, and is more energy-saving and environmentally friendly.

[0016] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the filter cloth cleaning device provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of a filter cloth cleaning device provided in an embodiment of the present application.

[0019] Description of reference numerals:

[0020] 100-cleaning components;

[0021] 110-gas source;

[0022] 120-cleaning container;

[0023] 121-cleaning chamber;

[0024] 1211-first dust collection port;

[0025] 1212-second dust collection port;

[0026] 1213-bottom wall;

[0027] 130-nozzle member;

[0028] 140-first heat exchange element;

[0029] 200-dust collection assembly;

[0030] 210-first dust collecting member;

[0031] 211-dust collecting chamber;

[0032] 2111-first dust collecting chamber;

[0033] 2112-second dust collecting chamber;

[0034] 212- filter element;

[0035] 220 - second dust collecting member;

[0036] 230- fan unit;

[0037] 240- second heat exchange element;

[0038] 300-control valve assembly;

[0039] 310-first control valve;

[0040] 320-second control valve;

[0041] 330-third control valve;

[0042] 340-Detection unit. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0047] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0048] Lithium-ion batteries are mainly composed of positive electrode materials, negative electrode materials, diaphragms and electrolytes. Currently, ternary materials are mainly used as positive electrode materials. In order to remove impurities in the ternary materials, a filter press washing device is required to wash the ternary materials. The filter press washing device includes multiple filter press washing plates. The filter press washing plates have a filter chamber. The filter chamber is provided with a filter cloth. When the ternary material is rinsed with a medium such as alkaline solution or deionized water, the filter cloth can intercept and filter impurities in the ternary material. After the filter cloth has worked for a period of time, the filter cloth needs to be cleaned to remove the filter residue on the filter cloth.

[0049] In the related art, the filter cloth is mainly cleaned by water washing, that is, a water pump is used to pressurize the water in the cleaning tank to a certain pressure, and then the filter cloth is rinsed, and the generated wastewater enters the separator for separation and treatment. However, this cleaning method requires more pure water, consumes a lot of water, and generates more wastewater. The wastewater treatment is more complicated and energy-consuming.

[0050] In view of the above problems, an embodiment of the present application provides a filter cloth cleaning device, which provides clean gas through an air source, and then uses the clean gas to flush the filter cloth, and collects the filter residue through a first dust collecting part and a second dust collecting part. In this way, there is no need to consume water resources and there is no need to treat wastewater. The filter cloth cleaning device is more energy-saving and environmentally friendly.

[0051] The specific implementation of the filter cloth cleaning device provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0052] Reference Figure 1As shown, the filter cloth cleaning device provided in the embodiment of the present application includes a cleaning component 100 and a dust collecting component 200, the cleaning component 100 includes an air source 110, a cleaning container 120 and a nozzle member 130, the dust collecting component 200 includes a first dust collecting member 210 and a second dust collecting member 220, the air source 110 is connected to the nozzle member 130, and is configured to provide cleaning gas to the nozzle member 130, the nozzle member 130 is configured to spray cleaning gas onto the surface of the filter cloth, the cleaning container 120 has a cleaning chamber 121, the nozzle member 130 is located in the cleaning chamber 121, the cleaning chamber 121 has a first dust collecting port 1211 and a second dust collecting port 1212, the first dust collecting port 1211 is located above the cleaning chamber 121, the second dust collecting port 1212 is located below the cleaning chamber 121, the first dust collecting member 210 is connected to the first dust collecting port 1211, and the second dust collecting member 220 is connected to the second dust collecting port 1212.

[0053] In the present application, the cleaning component 100 is used to flush the filter cloth, and the dust collecting component 200 is used to collect the filter residue flushed from the filter cloth. Since the cleaning device for the filter cloth provided in the embodiment of the present application adopts clean gas flushing, the cleaning component 100 may include an air source 110, and the air source 110 is used to provide clean gas, wherein the clean gas may be compressed air. The cleaning component 100 may also include a nozzle member 130, and the clean gas provided by the air source 110 may be uniformly sprayed onto the surface of the filter cloth through the nozzle member 130, and then the filter residue is separated from the filter cloth by the pressure of the clean gas.

[0054] Since the filter residue is a small solid particle, in order to prevent the filter residue from flying around when flushing the filter cloth and to facilitate the collection of the filter residue, the filter cloth needs to be in a relatively closed space. Therefore, a cleaning container 120 is also required. The cleaning container 120 has a cleaning chamber 121. The nozzle member 130 and the filter cloth are both arranged in the cleaning chamber 121. In this way, when the filter cloth is flushed with clean gas, the filter residue will not splash everywhere. The relatively moist filter residue is rich in water and will be deposited at the bottom of the cleaning chamber 121 under the action of gravity, while the relatively dry filter residue is suspended in the upper part of the cleaning chamber 121 and flows with the air.

[0055] In order to collect the two parts of filter residue separately, a first dust collecting port 1211 can be set above the cleaning chamber 121, and a second dust collecting port 1212 can be set below the cleaning chamber 121. The dust collecting assembly 200 may include a first dust collecting part 210 and a second dust collecting part 220. The first dust collecting part 210 is used to collect the filter residue discharged from the first dust collecting port 1211, and the second dust collecting part 220 is used to collect the filter residue discharged from the second dust collecting port 1212. In this way, waterless cleaning of the filter cloth and effective collection of the filter residue are achieved, and there is no need to treat wastewater subsequently. The filter cloth cleaning device is more energy-saving and environmentally friendly.

[0056] The filter cloth cleaning device provided in the embodiment of the present application includes a cleaning component 100 and a dust collecting component 200. The cleaning component 100 includes an air source 110, a cleaning container 120 and a nozzle part 130. The cleaning container 120 includes a cleaning chamber 121, a first dust collecting port 1211 and a second dust collecting port 1212. The dust collecting component 200 includes a first dust collecting part 210 and a second dust collecting part 220. The air source 110 is provided to provide cleaning gas to the nozzle part 130, and the nozzle part 130 is provided to spray the cleaning gas uniformly onto the surface of the filter cloth to flush the filter residue on the filter cloth. The cleaning chamber 121 is provided to accommodate the filter cloth and collect the filter residue. The first dust collecting port 1211 is provided to connect to the first dust collecting part 210, and the second dust collecting port 1212 is provided to connect to the second dust collecting part 220. The first dust collecting part 210 is provided to collect relatively dry filter residue, and the second dust collecting part 220 is provided to collect relatively moist filter residue. Therefore, the filter cloth cleaning device provided in the embodiment of the present application uses clean gas to flush the filter cloth, does not need to consume water resources and treat wastewater, and is more energy-saving and environmentally friendly.

[0057] In a possible implementation, a plurality of nozzle members 130 are disposed opposite to each other and are configured to spray cleaning gas toward two opposite surfaces of the filter cloth.

[0058] It should be noted that the filter cloth can be placed at an angle relative to the horizontal plane or along a vertical plane, and a plurality of nozzle members 130 are respectively arranged on two opposite sides of the filter cloth to facilitate flushing of filter residues on two opposite sides of the filter cloth to fully clean the filter cloth.

[0059] Reference Figure 1 As shown, in some embodiments, the cleaning chamber 121 has two bottom walls 1213 inclined relative to a horizontal plane, and the second dust collecting port 1212 is located between the two bottom walls 1213 .

[0060] That is to say, the two bottom walls 1213 of the cleaning chamber 121 form a funnel shape, and the second dust collecting port 1212 is located between the two bottom walls 1213, so that the filter residue deposited at the bottom of the cleaning chamber 121 can fall along the bottom walls 1213 to the second dust collecting piece 220 under the action of gravity, so that the second dust collecting piece 220 can collect the filter residue.

[0061] Reference Figure 1 As shown, in order to drive the drier filter residue to flow to the first dust collecting part 210, in a possible implementation, the dust collecting assembly 200 also includes a fan unit 230, and the first dust collecting part 210 is connected between the cleaning chamber 121 and the fan unit 230, and the fan unit 230 is constructed to provide suction force for the first dust collecting part 210.

[0062] In this way, when the fan unit 230 is in operation, a negative pressure area can be formed, thereby driving the drier filter residue to flow to the second dust collecting member 220 along with the air, and then the drier filter residue is collected by the second dust collecting member 220.

[0063] Reference Figure 1 As shown, in a possible implementation, the cleaning assembly 100 further includes a first heat exchange member 140 , which is connected between the gas source 110 and the cleaning chamber 121 and is configured to heat the cleaning gas.

[0064] In this way, when the clean gas flows to the first heat exchange element 140, it can exchange heat with the heat exchange medium in the first heat exchange element 140, thereby heating the clean gas. While using the warm clean gas to flush the filter cloth, it can also heat the filter residue and then dry the filter residue, so that more filter residue can be sucked into the first dust collecting element 210.

[0065] In some embodiments, the dust collecting assembly 200 further includes a second heat exchange member 240 , which is connected between the cleaning chamber 121 and the first dust collecting member 210 , and the second heat exchange member 240 is configured to dry the filter residue.

[0066] With such arrangement, when the filter residue flows with the air and passes through the second heat exchange element 240 , the second heat exchange element 240 can further dry the filter residue to reduce the moisture content in the filter residue so as to facilitate subsequent collection in the first dust collecting element 210 .

[0067] Reference Figure 1 As shown, in a specific implementation, the first dust collecting element 210 has a dust collecting chamber 211, and a filter element 212 is provided in the dust collecting chamber 211 to separate the dust collecting chamber 211 into a first dust collecting chamber 2111 and a second dust collecting chamber 2112, the first dust collecting port 1211 is connected to the first dust collecting chamber 2111, and the fan unit 230 is connected to the second dust collecting chamber 2112.

[0068] That is to say, apart from air being able to circulate between the first dust collecting chamber 2111 and the second dust collecting chamber 2112 , solid matter cannot pass through the filter element 212 and move between the two.

[0069] It is understandable that if no filter element 212 is provided in the dust collecting chamber 211, the filter residue will be sucked into the fan unit 230 along with the air, thereby blocking the fan unit 230. Therefore, the fluid (flowing air and filter residue) flowing out of the first dust collecting port 1211 should be filtered by the filter element 212 in the dust collecting chamber 211 to intercept the filter residue in the first dust collecting chamber 2111 and collect the filter residue in the first dust collecting chamber 2111. When necessary, the filter residue can be discharged out of the first dust collecting chamber 2111, while the air continues to flow to the second dust collecting chamber 2112 and finally discharged out of the fan unit 230.

[0070] Reference Figure 1 As shown, in a possible implementation, the filter cloth cleaning device provided in the embodiment of the present application also includes a control valve assembly 300, the control valve assembly 300 includes a first control valve 310, the first control valve 310 is arranged between the air source 110 and the cleaning chamber 121, and the first control valve 310 is constructed to control the on-off state between the air source 110 and the cleaning chamber 121.

[0071] In the above-mentioned setting, the cleaning device of the filter cloth can be opened by controlling the first control valve 310, thereby controlling the air source 110 and the cleaning chamber 121 to be in a connected state, and can be closed by controlling the first control valve 310, thereby controlling the air source 110 and the cleaning chamber 121 to be in a cut-off state. In this way, the air source 110 can be opened or closed according to the cleaning needs.

[0072] Reference Figure 1 As shown, in some embodiments, the control valve assembly 300 may also include a second control valve 320, which is arranged between the fan unit 230 and the cleaning chamber 121, and the second control valve 320 is constructed to control the on-off state between the first dust collecting part 210 and the cleaning chamber 121.

[0073] In this way, the cleaning device of the filter cloth can control the second control valve 320 to open, and then control the first dust collecting part 210 and the cleaning chamber 121 to be in a connected state, so that the filter residue flows into the first dust collecting part 210 and is collected. When only the second dust collecting part 220 is needed to collect the filter residue, the first control valve 310 can be controlled to be closed, and then the first dust collecting part 210 and the cleaning chamber 121 can be controlled to be in a cut-off state, and the filter residue cannot enter the first dust collecting part 210.

[0074] Reference Figure 1 As shown, in a possible implementation, the control valve assembly 300 may also include a third control valve 330 and a detection unit 340, the detection unit 340 is configured to detect the pressure of the dust collecting chamber 211, the first dust collecting chamber 2111 has a discharge port, the third control valve 330 is arranged at the discharge port, and the third control valve 330 is configured to open the discharge port when the pressure value of the detection unit 340 exceeds a preset threshold value.

[0075] It can be understood that the detection unit 340 can detect whether the dust collecting chamber 211 is full of filter residue by detecting the pressure in the dust collecting chamber 211. If the pressure value in the dust collecting chamber 211 is large and the pressure value exceeds the preset threshold, it means that there is a lot of filter residue in the dust collecting chamber 211 and some of it needs to be emptied.

[0076] Therefore, a discharge port is set below the first dust collecting chamber 2111, and a third control valve 330 is set at the discharge port to control the opening and closing state of the discharge port. In this way, when there is a lot of filter residue in the dust collecting chamber 211, the third control valve 330 can be controlled to open the discharge port to discharge the filter residue in the dust collecting chamber 211.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A filter cloth cleaning device, characterized in that: It includes a cleaning component and a dust collecting component, the cleaning component includes an air source, a cleaning container and a nozzle part, the dust collecting component includes a first dust collecting part and a second dust collecting part, the air source is connected to the nozzle part and is constructed to provide cleaning gas to the nozzle part, the nozzle part is constructed to spray the cleaning gas onto the surface of the filter cloth, the cleaning container has a cleaning chamber, the nozzle part is located in the cleaning chamber, the cleaning chamber has a first dust collecting port and a second dust collecting port, the first dust collecting port is located above the cleaning chamber, the second dust collecting port is located below the cleaning chamber, the first dust collecting part is connected to the first dust collecting port, and the second dust collecting part is connected to the second dust collecting port.

2. The filter cloth cleaning device according to claim 1, characterized in that: The plurality of nozzle members are arranged opposite to each other and are configured to spray the cleaning gas toward two opposite surfaces of the filter cloth.

3. The filter cloth cleaning device according to claim 1, characterized in that: The cleaning chamber has two bottom walls inclined relative to a horizontal plane, and the second dust collecting port is located between the two bottom walls.

4. The filter cloth cleaning device according to any one of claims 1 to 3, characterized in that: The dust collecting assembly further includes a fan unit. The first dust collecting member is connected between the cleaning chamber and the fan unit. The fan unit is configured to provide suction force for the first dust collecting member.

5. The filter cloth cleaning device according to any one of claims 1 to 3, characterized in that: The cleaning assembly further includes a first heat exchange member connected between the gas source and the cleaning chamber and configured to heat the cleaning gas.

6. The filter cloth cleaning device according to any one of claims 1 to 3, characterized in that: The dust collecting assembly further includes a second heat exchange member connected between the cleaning chamber and the first dust collecting member, and the second heat exchange member is configured to dry filter residue.

7. The filter cloth cleaning device according to claim 4, characterized in that: The first dust collecting part has a dust collecting cavity, and a filter is arranged in the dust collecting cavity to separate the dust collecting cavity into a first dust collecting cavity and a second dust collecting cavity. The first dust collecting port is connected to the first dust collecting cavity, and the fan unit is connected to the second dust collecting cavity.

8. The filter cloth cleaning device according to claim 7, characterized in that: It also includes a control valve assembly, which includes a first control valve. The first control valve is arranged between the gas source and the cleaning chamber, and the first control valve is configured to control the on-off state between the gas source and the cleaning chamber.

9. The filter cloth cleaning device according to claim 8, characterized in that: It also includes a second control valve, which is arranged between the fan unit and the cleaning chamber, and is configured to control the on-off state between the first dust collecting part and the cleaning chamber.

10. The filter cloth cleaning device according to claim 9, characterized in that: It also includes a detection unit and a third control valve, the detection unit is constructed to detect the pressure of the dust collecting chamber, the first dust collecting chamber has a discharge port, the third control valve is arranged at the discharge port, and the third control valve is constructed to open the discharge port when the pressure value of the detection unit exceeds a preset threshold.

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