Cleaning device and method for filtering mechanism of crystal slag sewage tank

Abstract

The invention discloses a cleaning device and method for a filtering mechanism of a crystal slag sewage tank, and the cleaning device comprises a detection mechanism which is used for detecting the change of the liquid level in the filtering mechanism in the crystal slag sewage tank; the cleaning mechanism is positioned on the inner side of the filtering mechanism; the driving mechanism is connected with the detecting mechanism and the cleaning mechanism, and the driving mechanism is used for driving the cleaning mechanism to clean the filtering mechanism. By arranging the cleaning mechanism, the driving mechanism and the detection mechanism, the coarse filter screen and the fine filter screen of the filter mechanism are cleaned, manual operation is not needed, a box body of the filter mechanism does not need to be opened, manpower consumption is reduced, meanwhile, the filter mechanism of the crystal slag sewage box is effectively cleaned, and the production progress is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor manufacturing, and in particular to a cleaning device and method for a crystal slag sewage tank filtering mechanism. Background Art

[0002] In the semiconductor manufacturing process, the existing technology thins the back of the wafer by mechanical grinding to meet the relevant cleanliness requirements. During the thinning process of the machine, a large amount of impurities such as slag and mud will be generated, most of which will remain inside the machine. When PM (prevention maintenance) is performed, engineers will clean the slag inside the machine, but a small amount of smaller slag and mud will flow from the pipeline into the slag sewage tank (sedimentation tank) outside the machine.

[0003] In the prior art, there is no self-cleaning device in the crystal slag sewage tank. As the machine continues to operate, more and more crystal slag and impurities will clog the filter. Therefore, engineers will clean the crystal slag sewage tank once in a while. The filter in the crystal slag sewage tank is difficult to clean because impurities are adsorbed for a long time, and it consumes a lot of manpower. Summary of the invention

[0004] The purpose of the present invention is to provide a cleaning device and method for a filter mechanism of a crystal slag sewage tank, aiming to solve the problem in the prior art that the filter screen in the crystal slag sewage tank needs to be cleaned manually regularly, which consumes manpower and affects the production progress.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In one aspect, the present invention provides a cleaning device for a filter mechanism of a crystal slag sewage tank, comprising: a detection mechanism for detecting changes in the liquid level in the filter mechanism in the crystal slag sewage tank;

[0007] A cleaning mechanism, which is located inside the filtering mechanism;

[0008] A driving mechanism is connected to the detection mechanism and the cleaning mechanism respectively, and the driving mechanism is used to drive the cleaning mechanism to clean the filtering mechanism.

[0009] Preferably, the driving mechanism comprises:

[0010] A driving motor, one end of which is arranged on the crystal slag sewage tank;

[0011] The hollow gear transmission mechanism is connected to the output end of the driving motor, and the driving motor drives the gear transmission mechanism to rotate.

[0012] Preferably, the cleaning mechanism comprises:

[0013] a cleaning roller assembly disposed in the filtering mechanism;

[0014] A connecting member is respectively connected to the gear transmission mechanism and the cleaning roller assembly, and the gear transmission mechanism drives the cleaning roller assembly to rotate in the filtering mechanism.

[0015] Preferably, the cleaning roller assembly comprises, from outside to inside, a plurality of first cleaning rollers and a plurality of second cleaning rollers, and the plurality of first cleaning rollers and the plurality of second cleaning rollers are respectively arranged in a ring shape along the outer side of the gear transmission mechanism.

[0016] Preferably, the gear transmission mechanism comprises:

[0017] First gear;

[0018] A second gear, wherein the first gear and the second gear are arranged on the upper and lower sides of the main shaft of the driving motor, and the first gear and the second gear are both connected to the main shaft of the driving motor and rotate coaxially with the main shaft of the driving motor;

[0019] a third gear, which is arranged perpendicular to the second gear and meshes with the second gear;

[0020] The fourth gear is located below the third gear, is vertically arranged with the third gear, and is meshed with the third gear.

[0021] Preferably, two groups of connecting members are provided, and the two groups of connecting members are respectively connected to the first gear and the fourth gear, the group of connecting members located at the upper end is connected to several first cleaning rollers, and the group of connecting members located at the lower end is connected to several second cleaning rollers.

[0022] Preferably, the cleaning mechanism further comprises: a high-pressure water spray frame, which is arranged on the gear transmission mechanism, the high-pressure water spray frame is led out from the gear transmission mechanism and extends into the filtering mechanism, and the gear transmission mechanism drives the high-pressure water spray frame to rotate in the filtering mechanism.

[0023] Preferably, the high-pressure water spray rack comprises: a plurality of water spray pipelines, each of which is provided with a plurality of water spray ports for cleaning the filter screen of the filter mechanism.

[0024] Preferably, the detection mechanism comprises:

[0025] A detection sensor, which is arranged on the top of the filtering mechanism;

[0026] The floating frame is arranged above the fine filter of the filtering mechanism, and a floating plate is slidably arranged on the floating frame. The detection sensor determines the state of the fine filter by detecting the position of the floating plate.

[0027] Preferably, the driving mechanism further comprises: a signal receiving and processing component, which is connected to the detection sensor and receives the signal transmitted by the detection sensor.

[0028] On the one hand, the present invention also provides a crystal slag sewage tank, which includes the cleaning device of the crystal slag sewage tank filter mechanism mentioned above, and the crystal slag sewage tank also includes:

[0029] A box body, the box body comprising: a sewage tank and a clean water tank arranged at the upper and lower parts, a sewage inlet being arranged on one side of the sewage tank, and a water outlet being arranged on one side of the clean water tank;

[0030] A filtering mechanism is arranged in the sewage tank, and the filtering mechanism comprises, from the outside to the inside, a coarse filter screen and a fine filter screen;

[0031] The cleaning device is arranged in the filtering mechanism to clean the coarse filter and the fine filter respectively.

[0032] Preferably, the cleaning mechanism includes: a cleaning roller assembly, which includes, from the outside to the inside, a plurality of first cleaning rollers and a plurality of second cleaning rollers, wherein the plurality of first cleaning rollers are arranged in a ring along one side of the inner wall of the coarse filter screen, and the plurality of second cleaning rollers are arranged in a ring along one side of the inner wall of the fine filter screen.

[0033] Preferably, the cleaning mechanism further comprises: a high-pressure water spray frame, which is arranged at the end of the driving mechanism, and the high-pressure water spray frame is arranged between the coarse filter screen and the fine filter screen.

[0034] On the other hand, the present invention also provides a method for cleaning a filter mechanism of a slag sewage tank, which is implemented by using the cleaning device of the slag sewage tank filter mechanism. The method comprises: detecting the change of the liquid level in the filter mechanism in the slag sewage tank by a detection mechanism,

[0035] If the liquid level detected by the detection mechanism does not meet the preset standard, the driving mechanism is started, and the driving mechanism drives the cleaning mechanism to rotate to clean the filtering mechanism;

[0036] If the liquid level detected by the detection mechanism meets the preset standard, the driving mechanism stops working.

[0037] Preferably, the detection mechanism comprises: a detection sensor, which is arranged at the top of the filter mechanism; a floating frame, which is arranged above the fine filter of the filter mechanism, and a floating plate is slidably arranged on the floating frame, and the detection sensor detects the distance H from the upper end of the floating plate.

[0038] If the distance H is greater than a preset distance threshold, it is determined that the liquid level does not meet the preset standard, and the driving mechanism is started, and the driving mechanism drives the cleaning mechanism to rotate to clean the filtering mechanism;

[0039] If the distance H is less than or equal to a preset distance threshold, it is determined that the liquid level meets the preset standard, and the driving mechanism stops working.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The present invention provides a cleaning device and method for a filter mechanism of a crystal slag sewage tank. The cleaning device cleans a coarse filter screen and a fine filter screen of the filter mechanism by arranging a cleaning mechanism, a driving mechanism and a detection mechanism. No manual operation is required, and there is no need to open the box of the filter mechanism, thereby reducing manpower consumption. At the same time, the filter mechanism of the crystal slag sewage tank is effectively cleaned, thereby accelerating production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are an embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0043] Figure 1 A schematic diagram of the structure of a cleaning device for a slag sewage tank filter mechanism provided by an embodiment of the present invention;

[0044] Figure 2 A schematic diagram of the structure of a gear transmission mechanism provided by an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the structure of a detection mechanism provided in one embodiment of the present invention.

[0046] Explanation of the accompanying drawings: 1-box, 2-coarse filter, 3-fine filter, 4-clean water tank, 5-water outlet, 6-water inlet, 7-second cleaning roller, 8-first cleaning roller, 9-high-pressure water spray frame, 10-sewage tank, 11-drive motor, 12-first gear, 13-second gear, 14-third gear, 15-fourth gear, 16-detection sensor, 17-floating frame. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1-3 The cleaning device and method of the crystal slag sewage tank filter mechanism proposed in the present invention are further described in detail with specific implementation methods. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purposes, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that can be produced by the present invention and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0048] refer to Figure 1 As shown, on the one hand, this embodiment provides a cleaning device for a slag sewage tank filter mechanism, comprising: a detection mechanism, which is used to detect changes in the liquid level in the filter mechanism in the slag sewage tank; a cleaning mechanism, which is located on the inner side of the filter mechanism; a driving mechanism, which is respectively connected to the detection mechanism and the cleaning mechanism, and the driving mechanism is used to drive the cleaning mechanism to clean the filter mechanism.

[0049] refer to Figure 2 As shown, the driving mechanism includes: a driving motor 11 and a gear transmission mechanism, one end of the driving motor 11 is arranged on the slag sewage tank; the inner cavity of the gear transmission mechanism is hollow, which is connected to the output end of the driving motor 11, and the driving motor 11 drives the gear transmission mechanism to rotate. The gear transmission mechanism includes: a first gear 12, the first gear 12 is fixedly connected to the first cleaning roller 8, and is used to drive the first cleaning roller 8 to rotate; a second gear 13, the first gear 12 and the second gear 13 are arranged along the main shaft of the driving motor 11, and the first gear 12 and the second gear 13 are connected to the main shaft of the driving motor 11, and both rotate coaxially with the main shaft of the driving motor 11; a third gear 14, which is arranged vertically with the second gear 13 and meshes with the second gear 13; a fourth gear 15, which is located below the third gear 14, is arranged vertically with the third gear 14, and meshes with the third gear 14.

[0050] The cleaning mechanism comprises: a cleaning roller assembly, which is arranged in the filtering mechanism; a connecting member, which is respectively connected to the gear transmission mechanism and the cleaning roller assembly, and the gear transmission mechanism drives the cleaning roller assembly to rotate in the filtering mechanism. The cleaning roller assembly comprises, from the outside to the inside, a plurality of first cleaning rollers 8 and a plurality of second cleaning rollers 7, and the plurality of first cleaning rollers 8 and the plurality of second cleaning rollers 7 are respectively arranged in an annular shape along the outer side of the gear transmission mechanism.

[0051] The connecting members are provided with two groups, and the two groups of the connecting members are respectively connected to the first gear 12 and the fourth gear 15. The group of the connecting members located at the upper end is connected to a plurality of the first cleaning rollers 8, and the group of the connecting members located at the lower end is connected to a plurality of the second cleaning rollers 7.

[0052] The cleaning mechanism also includes: a high-pressure water spray frame 9, which is arranged on the gear transmission mechanism, the high-pressure water spray frame 9 is led out from the gear transmission mechanism and extends into the filter mechanism, and the gear transmission mechanism drives the high-pressure water spray frame 9 to rotate in the filter mechanism. The high-pressure water spray frame 9 includes: a plurality of water spray pipelines, each of which is provided with a plurality of water spray ports for cleaning the filter screen of the filter mechanism. In this embodiment, the radius of the first cleaning roller 8 is the largest for cleaning the coarse filter screen 2, the radius of the high-pressure water spray frame 9 is between the coarse filter screen 2 and the fine filter screen 3, and a plurality of the water spray pipelines are introduced from the clean water tank 4 into the hollow gear transmission mechanism, and are led out from the gear transmission mechanism. Through the rotation of the drive motor 11, the rotation of the high-pressure water spray frame 9 is driven, so that the crystal slag and impurities on the fine filter screen 3 can be cleaned 360 degrees without dead angles.

[0053] refer to Figure 3As shown, the detection mechanism includes: a detection sensor 16, which is arranged at the top of the filter mechanism, that is, the top of the box body 1 in this example; a floating frame 17, which is arranged above the fine filter 3 of the filter mechanism, and a floating plate is slidably arranged on the floating frame 17. The detection sensor 16 determines the state of the fine filter 3 by detecting the position of the floating plate. In this embodiment, the floating plate is arranged inside the floating frame 17, and the floating frame 17 plays a role similar to a guide rail, so that the floating plate can float freely inside the floating frame 17 as the water level rises and falls as the water level decreases. The detection sensor 16 detects the distance H above the floating plate, and through the change of the distance H, it reflects the rise and fall of the floating plate, so as to judge whether the fine filter 3 is blocked and whether it needs to be cleaned. If the fine filter 3 is not blocked, the water level inside the fine filter 3 should be maintained at a relatively stable height, that is, the distance H detected by the detection sensor 16 should be maintained stable. The driving mechanism further includes: a signal receiving and processing component, which is connected to the detection sensor 16 and is used to receive the signal transmitted by the detection sensor 16 .

[0054] Continue to refer Figure 1 As shown, this embodiment also provides a crystal slag sewage tank, which includes the cleaning device of the above-mentioned crystal slag sewage tank filtering mechanism, and the crystal slag sewage tank also includes: a box body 1, the box body 1 includes: a sewage tank 10 and a clean water tank 4 arranged at the top and bottom, a sewage inlet 6 is arranged on one side of the sewage tank 10, and a water outlet 5 is arranged on one side of the clean water tank 4; a filtering mechanism, which is arranged in the sewage tank 10, and the filtering mechanism includes: a coarse filter screen 2 and a fine filter screen 3 from the outside to the inside; the cleaning device is arranged in the filtering mechanism, and cleans the coarse filter screen 2 and the fine filter screen 3 respectively. The cleaning mechanism includes: a cleaning roller assembly, and the cleaning roller assembly includes: a plurality of first cleaning rollers 8 and a plurality of second cleaning rollers 7 from the outside to the inside, and the plurality of first cleaning rollers 8 are arranged in a ring along one side of the inner wall of the coarse filter screen, and the plurality of second cleaning rollers 7 are arranged in a ring along one side of the inner wall of the fine filter screen 3. The cleaning mechanism further comprises: a high-pressure water spray frame 9 , which is arranged at the end of the driving mechanism, and the high-pressure water spray frame 9 is arranged between the coarse filter screen 2 and the fine filter screen 3 .

[0055] On the other hand, the present embodiment further provides a method for cleaning a filter mechanism of a crystal slag sewage tank, which is implemented by using the cleaning device of the filter mechanism of the crystal slag sewage tank described above, and the method comprises: detecting the change of the liquid level in the filter mechanism in the crystal slag sewage tank by a detection mechanism, if the liquid level detected by the detection mechanism does not meet the preset standard, the driving mechanism is started, and the driving mechanism drives the cleaning mechanism to rotate to clean the filter mechanism; if the liquid level detected by the detection mechanism meets the preset standard, the driving mechanism stops working. The detection mechanism in the present embodiment comprises: any one of a detection sensor and a liquid level sensor.

[0056] Specifically, the detection mechanism in this embodiment includes: a detection sensor 16, which is arranged at the top of the filtering mechanism; a floating frame 17, which is arranged above the fine filter 3 of the filtering mechanism, and a floating plate is slidably arranged on the floating frame 17, and the detection sensor 16 detects the distance H from the upper end of the floating plate. If the distance H is greater than a preset distance critical value, it is determined that the liquid level does not meet the preset standard, then the driving mechanism is started, and the driving mechanism drives the cleaning mechanism to rotate to clean the filtering mechanism; if the distance H is less than or equal to the preset distance critical value, it is determined that the liquid level meets the preset standard, and the driving mechanism stops working.

[0057] In this embodiment, the working principle of the cleaning device in the slag sewage tank filtering mechanism is specifically as follows:

[0058] The crystal slag sewage enters the sewage tank 10 at the upper part of the box body 1 through the sewage inlet 6 set on the box body 1. The sewage in the sewage tank 10 enters the lower part of the clean water tank 4 through the coarse filter 2 and the fine filter 3 in turn. When the fine filter 3 is blocked, the water inlet and outlet speeds are unbalanced. At this time, the water level inside the fine filter 3 drops and the float sinks. At this time, after the detection sensor 16 detects that the float distance H is greater than the critical value, the drive motor 11 starts, and the first cleaning roller 8, the high-pressure water spray frame 9, and the second cleaning roller 7 are driven to work to clean the crystal slag and impurities on the coarse filter 2 and the fine filter 3. The high-pressure water spray frame 9 is high-pressure water, which sprays high-pressure water on the coarse filter 2 and the fine filter 3 to clean the coarse filter 2 and the fine filter 3 respectively. At this time, the water inlet and outlet speeds in the fine filter 3 are balanced again, the float floats, and the distance H becomes smaller. At this time, the drive motor 11 will stop working. The designed cleaning device of the crystal slag sewage tank filter mechanism can effectively improve production efficiency, reduce manpower waste, and reduce enterprise production costs.

[0059] In summary, the above embodiments provide a cleaning device and method for a slag sewage tank filter mechanism, wherein the cleaning device cleans the coarse filter screen and the fine filter screen of the filter mechanism by setting a cleaning mechanism, a driving mechanism and a detection mechanism. No manual operation is required, and there is no need to open the filter box, thereby reducing manpower consumption. At the same time, the filter mechanism of the slag sewage tank is effectively cleaned, thereby speeding up the production progress.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0061] It should be noted that the devices and methods disclosed in the embodiments of this article can also be implemented in other ways. The device implementation described above is only schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of this article. In this regard, each box in the flowchart or block diagram can represent a part of a module, program or code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical function, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented by a dedicated hardware-based system for performing a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0062] In addition, the functional modules in the various embodiments of this document may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0063] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A cleaning device for a slag sewage tank filter mechanism, characterized in that: include: A detection mechanism, which is used to detect changes in the liquid level in the filter mechanism in the crystal slag sewage tank; A cleaning mechanism, which is located inside the filtering mechanism; A driving mechanism is connected to the detection mechanism and the cleaning mechanism respectively, and the driving mechanism is used to drive the cleaning mechanism to clean the filtering mechanism.

2. The cleaning device for the slag sewage tank filter mechanism according to claim 1, characterized in that: The driving mechanism comprises: A driving motor, one end of which is arranged on the crystal slag sewage tank; The hollow gear transmission mechanism is connected to the output end of the driving motor, and the driving motor drives the gear transmission mechanism to rotate.

3. The cleaning device for the slag sewage tank filter mechanism according to claim 2, characterized in that: The cleaning mechanism comprises: a cleaning roller assembly disposed in the filtering mechanism; A connecting member is respectively connected to the gear transmission mechanism and the cleaning roller assembly, and the gear transmission mechanism drives the cleaning roller assembly to rotate in the filtering mechanism.

4. The cleaning device for the slag sewage tank filter mechanism according to claim 3, characterized in that: The cleaning roller assembly comprises, from outside to inside, a plurality of first cleaning rollers and a plurality of second cleaning rollers, wherein the plurality of first cleaning rollers and the plurality of second cleaning rollers are respectively arranged in an annular shape along the outer side of the gear transmission mechanism.

5. The cleaning device for the slag sewage tank filter mechanism according to claim 4, characterized in that: The gear transmission mechanism comprises: First gear; A second gear, wherein the first gear and the second gear are arranged on the upper and lower sides of the main shaft of the driving motor, and the first gear and the second gear are both connected to the main shaft of the driving motor and rotate coaxially with the main shaft of the driving motor; a third gear, which is arranged perpendicular to the second gear and meshes with the second gear; The fourth gear is located below the third gear, is vertically arranged with the third gear, and is meshed with the third gear.

6. The cleaning device for the slag sewage tank filter mechanism according to claim 5, characterized in that: The connecting members are provided with two groups, and the two groups of the connecting members are respectively connected to the first gear and the fourth gear. The group of the connecting members located at the upper end is connected to several of the first cleaning rollers, and the group of the connecting members located at the lower end is connected to several of the second cleaning rollers.

7. The cleaning device for the slag sewage tank filter mechanism according to claim 3, characterized in that: The cleaning mechanism also includes: a high-pressure water spray frame, which is arranged on the gear transmission mechanism, the high-pressure water spray frame is led out from the gear transmission mechanism and extends into the filtering mechanism, and the gear transmission mechanism drives the high-pressure water spray frame to rotate in the filtering mechanism.

8. The cleaning device for the slag sewage tank filter mechanism according to claim 7, characterized in that: The high-pressure water spray rack comprises: a plurality of water spray pipelines, each of which is provided with a plurality of water spray ports for cleaning the filter screen of the filter mechanism.

9. The cleaning device for the slag sewage tank filter mechanism according to claim 1, characterized in that: The detection mechanism comprises: A detection sensor, which is arranged on the top of the filtering mechanism; The floating frame is arranged above the fine filter of the filtering mechanism, and a floating plate is slidably arranged on the floating frame. The detection sensor determines the state of the fine filter by detecting the position of the floating plate.

10. The cleaning device for the slag sewage tank filter mechanism according to claim 9, characterized in that: The driving mechanism further comprises: a signal receiving and processing component, which is connected to the detection sensor and receives the signal transmitted by the detection sensor.

11. A crystal slag sewage tank, characterized in that: It comprises a cleaning device for a slag sewage tank filter mechanism as claimed in any one of claims 1 to 10, wherein the slag sewage tank further comprises: A box body, the box body comprising: a sewage tank and a clean water tank arranged at the upper and lower parts, a sewage inlet being arranged on one side of the sewage tank, and a water outlet being arranged on one side of the clean water tank; A filtering mechanism is arranged in the sewage tank, and the filtering mechanism comprises, from the outside to the inside, a coarse filter screen and a fine filter screen; The cleaning device is arranged in the filtering mechanism to clean the coarse filter and the fine filter respectively.

12. The crystal slag sewage tank according to claim 11, characterized in that: The cleaning mechanism includes: a cleaning roller assembly, which includes: a plurality of first cleaning rollers and a plurality of second cleaning rollers from the outside to the inside, wherein the plurality of first cleaning rollers are arranged in a ring shape along one side of the inner wall of the coarse filter, and the plurality of second cleaning rollers are arranged in a ring shape along one side of the inner wall of the fine filter.

13. The crystal slag sewage tank according to claim 11, characterized in that: The cleaning mechanism further comprises: a high-pressure water spray frame, which is arranged at the end of the driving mechanism, and the high-pressure water spray frame is arranged between the coarse filter screen and the fine filter screen.

14. A method for cleaning a slag sewage tank filter mechanism, characterized in that: The method is implemented by using a cleaning device for a filter mechanism of a crystal slag sewage tank as claimed in any one of claims 1 to 10, and the method comprises: detecting a change in the liquid level in the filter mechanism in the crystal slag sewage tank by a detection mechanism, If the liquid level detected by the detection mechanism does not meet the preset standard, the driving mechanism is started, and the driving mechanism drives the cleaning mechanism to rotate to clean the filtering mechanism; If the liquid level detected by the detection mechanism meets the preset standard, the driving mechanism stops working.

15. The cleaning method of the slag sewage tank filter mechanism according to claim 14, characterized in that: The detection mechanism comprises: a detection sensor, which is arranged at the top of the filtering mechanism; a floating frame, which is arranged above the fine filter of the filtering mechanism, and a floating plate is slidably arranged on the floating frame, and the detection sensor detects the distance H from the upper end of the floating plate. If the distance H is greater than a preset distance threshold, it is determined that the liquid level does not meet the preset standard, and the driving mechanism is started, and the driving mechanism drives the cleaning mechanism to rotate to clean the filtering mechanism; If the distance H is less than or equal to a preset distance threshold, it is determined that the liquid level meets the preset standard, and the driving mechanism stops working.

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