White water recycling tank

Abstract

The invention relates to the technical field of white water treatment, in particular to a white water recycling tank which comprises a supporting shell and a filter tank arranged in the supporting shell, a tank opening is formed in the top of the filter tank, a tank cover is arranged at the position of the tank opening, and a supporting frame arranged in the filter tank is arranged at the bottom of the tank cover. The support frame is provided with a filtering module for filtering white water; a connecting frame is arranged at the top of the tank cover, and a control module which is connected with the connecting frame and used for controlling the tank cover to move up and down and move transversely is arranged in the supporting shell; the filtering module comprises a plurality of connecting frames which are distributed at intervals in the sliding direction of the supporting frame, each connecting frame is provided with a filter screen, and the mesh size of each filter screen is sequentially decreased from top to bottom; and a rotating shaft which is axially and transversely arranged is arranged beside each connecting frame, and the rotating shafts are rotationally arranged on the supporting frame. The transversely-arranged filter screens are rotated to be vertically arranged, all the filter screens are flush, the multiple filter screens can be cleaned at the same time, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of white water treatment technology, and more particularly to a white water recycling tank. Background Technology

[0002] White water, the main wastewater in the papermaking process, originates from the wire and press dewatering stages. Its composition is complex, containing a large amount of fine fibers, fillers, sizing agents, and dissolved organic matter. With increasingly stringent environmental regulations and a growing emphasis on resource recycling, efficient white water recovery and treatment has become crucial for paper companies to reduce energy consumption and pollution emissions. Filtration is the core process in white water recovery; by using filters to trap solid impurities (especially fine fibers), the dual goals of water purification and resource recovery can be achieved.

[0003] To improve filtration accuracy, existing white water recovery and treatment tanks generally employ a multi-stage filtration structure, which involves setting up multiple filter screens with decreasing mesh sizes. White water flows through these different filtration layers from top to bottom to effectively trap impurities of varying particle sizes. However, this type of equipment has significant drawbacks in the filter cleaning process, resulting in low cleaning efficiency, as detailed below: In existing equipment, multi-stage filters are mostly fixed inside the filter tank in a horizontal, flat manner. Cleaning requires stopping the machine, removing the tank cover, and then removing each filter individually. After cleaning, they are then reinstalled one by one. This process involves multiple handling and positioning operations, which not only consumes a lot of time but is also prone to misalignment due to operational errors, affecting subsequent filtration efficiency.

[0004] Secondly, since the filters are arranged horizontally and are independent of each other, the existing cleaning methods require each filter to be treated separately, or a single filter to be cleaned at a fixed point by equipment; the asynchronous cleaning mode of multiple filters significantly prolongs the cleaning cycle, especially in industrial continuous production scenarios, where frequent shutdowns for cleaning seriously affect the continuity of white water recycling.

[0005] Therefore, a white water recycling tank is provided to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a white water recycling tank to address the shortcomings of existing technologies and solve the technical problem of low cleaning efficiency of the filter screen in existing recycling tanks.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: A white water recycling tank includes a supporting shell and a filter tank installed inside the supporting shell. The top of the filter tank has an opening, and a cover is provided at the opening. A support frame is installed at the bottom of the cover and placed inside the filter tank. The support frame is equipped with a filter module for filtering white water. A connecting frame is installed at the top of the cover, and a control module connected to the connecting frame and used to control the cover to move up and down and laterally is installed inside the supporting shell. The support frame is flexibly and elastically slidably mounted on the bottom of the slot cover; The filter module includes several connecting frames spaced apart along the sliding direction of the support frame. Each connecting frame is equipped with a filter screen, and the mesh size of each filter screen decreases sequentially from top to bottom. Each connecting frame is provided with an axially transversely arranged rotating shaft on its side. The rotating shaft is rotatably mounted on the support frame. The end of each rotating shaft extends into the receiving cavity and is equipped with a transmission gear. The slot cover is equipped with a vertically arranged rack placed in the receiving cavity, and each transmission gear meshes with the rack. The bottom end of the support frame has a hook groove formed on the side away from the connecting frame. The top of the support housing is equipped with a cylinder arranged in a horizontal position, and the extension and retraction direction of the cylinder extension rod is perpendicular to the movement direction of the support frame. The end of the cylinder extension rod is fixedly provided with a stop for engaging in the hook groove. The stop is arranged laterally, and its length direction is parallel to the lateral movement direction of the groove cover.

[0008] Furthermore, the support frame has an internal cavity, and the inner wall of the cavity is provided with a sliding groove rod. The sliding groove rod has a vertically arranged guide rod in its groove, and the bottom of the groove cover is provided with a sliding rod. The guide rod is slidably disposed at the bottom end of the sliding rod, and a first spring is placed above the bottom end of the sliding rod to apply an upward pushing force to the sliding groove rod.

[0009] Furthermore, an inlet pipe is connected to the top side of the filter tank, and an outlet pipe is connected to the bottom of the filter tank; the stop is equipped with several rollers arranged in an array along its length to reduce the friction between itself and the bottom wall of the hook groove.

[0010] Furthermore, the control module includes a slide rail installed on the inner wall of the support housing and arranged laterally. A movable frame is slidably mounted on the slide rail, and a first drive unit for driving the movable frame to slide laterally is installed at the bottom of the support housing. A pair of vertically arranged first threaded rods are rotatably mounted on the movable frame and respectively placed on both sides of the filter tank. A pair of vertically arranged threaded sleeves are provided on the connecting frame. Each threaded sleeve is coaxially mounted and threadedly connected to a different first threaded rod. A pair of second drive units for driving different first threaded rods to rotate synchronously are installed on the movable frame.

[0011] Furthermore, the first drive unit includes a fixed seat disposed at the bottom of the support housing. The fixed seat is rotatably provided with a second threaded rod whose axis is parallel to the length direction of the slide rail. The second threaded rod is threadedly connected to the movable frame. The fixed seat is equipped with a second servo motor for driving the second threaded rod to rotate. The output shaft of the second servo motor is connected to the end of the second threaded rod through a coupling.

[0012] Furthermore, the second drive unit includes a first servo motor mounted on the movable frame, and the output shaft of the first servo motor is connected to the bottom end of the first threaded rod through a first bevel gear set.

[0013] Furthermore, the top of the support housing is equipped with a scraping assembly for simultaneously cleaning the surfaces of several filter screens from top to bottom.

[0014] Furthermore, the scraping assembly includes a support rod arranged vertically on the top of the support housing, a lifting frame slidably mounted on the support rod, and a third drive unit for driving the lifting frame to slide up and down. A sliding frame is slidably mounted on the lifting frame, and the sliding direction of the sliding frame is parallel to the sliding direction of the movable frame. The lifting frame is equipped with an electric push rod whose telescopic rod extension direction is consistent with the sliding direction of the sliding frame. The telescopic rod end of the electric push rod is fixedly mounted to the sliding frame. The sliding frame is equipped with a fixing plate, and the fixing plate is equipped with a scraping part for contacting the surface of the filter screen.

[0015] Furthermore, the scraping part includes a sliding chamber formed inside the fixed plate. A slider is laterally slidably disposed in the sliding chamber. The sliding direction of the slider is parallel to the sliding direction of the sliding frame. The slider is provided with a connecting rod, and the end of the connecting rod away from the slider extends to the outside of the fixed plate. A second spring is provided in the sliding chamber for applying a force to the slider in the direction of the connecting rod. A mounting plate is fixedly disposed on the end of the connecting rod extending to the outside of the fixed plate, and a scraping component is mounted on the mounting plate.

[0016] Furthermore, the scraping component can be a scraper or a brush, and the scraping end of the scraping component is arranged at a downward angle.

[0017] The beneficial effects of this invention are as follows: When in use, the white water to be filtered is transported into the filter tank and flows through each filter screen from top to bottom, from the filter screen with large mesh to the filter screen with small mesh, so as to perform graded filtration of the white water. After multiple filtrations, the fine fibers and other solid impurities in the white water can be fully filtered out, thereby improving the filtration effect.

[0018] When the filter screen needs cleaning, the control module is activated. First, the tank cover moves upwards, carrying the support frame and several filter screens upwards along with it. Once the support frame and filter screens are removed from the filter tank, the hook groove on the side of the bottom of the support frame aligns with the stop. At this point, the cylinder is activated, pushing the stop towards the hook groove until it engages. The control module then moves the tank cover upwards a short distance again. The support frame is blocked by the stop and cannot move further upwards, causing the tank cover to move upwards with the rack and pinion mechanism. This drives the transmission gears to rotate, causing the filter screens to rotate from a horizontal arrangement to a vertical arrangement. The filter screens are arranged vertically, and the control module controls the lateral movement of the trough cover. The support frame and the vertically arranged filter screens move laterally together. During the movement, the stop is always engaged in the hook groove and slides within the hook groove, ensuring that each filter screen remains vertically arranged during the lateral movement. After the filter screen moves laterally to the designated cleaning position, it can be cleaned. By rotating the horizontally arranged filter screens to a vertical arrangement and making each filter screen flush (i.e., combining them to form a vertically arranged surface), several filter screens can be cleaned simultaneously when cleaning is required, improving cleaning efficiency.

[0019] After cleaning is completed, several filter screens are controlled to move laterally and downward in the opposite direction to reset. During the downward reset process, the support frame automatically resets upward under the action of elasticity. The filter screens rotate from a vertical arrangement to a horizontal arrangement to continue filtering the subsequent white water. The above steps simplify the cleaning process and facilitate the cleaning of the surface of several filter screens, which not only improves the cleaning efficiency but also saves time and effort. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure in the scraping state of the present invention.

[0023] Figure 4 This is a schematic diagram of the internal structure of the support shell of the present invention.

[0024] Figure 5 This is a schematic diagram of the internal structure of the filter tank of the present invention.

[0025] Figure 6 This is a schematic diagram of the support frame and filter module of the present invention.

[0026] Figure 7 This is an enlarged view of part A of the present invention.

[0027] Figure 8This is a schematic diagram of the control module of the present invention.

[0028] Figure 9 This is a schematic diagram of the scraping component of the present invention.

[0029] Figure 10 This is a partial structural schematic diagram of the scraping component of the present invention.

[0030] The reference numerals in the figures include: 1. Support housing; 2. Filter tank; 3. Inlet pipe; 4. Outlet pipe; 5. Connecting valve; 6. Tank cover; 7. Support frame; 71. Receiving chamber; 72. Sliding rod; 73. Guide rod; 74. Sliding rod; 75. First spring; 8. Filter module; 81. Connecting frame; 82. Filter screen; 83. Rotating shaft; 84. Transmission gear; 85. Rack; 9. Connecting frame; 10. Control module; 101. Slide rail; 102. Movable frame; 103. First threaded rod; 104. Threaded sleeve; 105. First servo motor; 106. First bevel gear set; 107. Fixed base; 108. 109. Second threaded rod; 11. Hook groove; 12. Cylinder; 13. Stop; 14. Roller; 15. Scraping assembly; 1501. Support rod; 1502. Lifting frame; 1503. Third threaded rod; 1504. Support bearing; 1505. Third servo motor; 1506. Second bevel gear set; 1507. Sliding frame; 1508. Electric push rod; 1509. Fixing plate; 1510. Mounting plate; 1511. Scraping component; 1512. Sliding chamber; 1513. Slider; 1514. Connecting rod; 1515. Second spring; 16. Collection frame. Detailed Implementation

[0031] The following is a detailed description of a white water recycling tank according to the present invention, with reference to the accompanying drawings.

[0032] like Figure 1-5 As shown, an embodiment of the white water recycling tank of the present invention includes a supporting shell 1 and a filter tank 2 installed inside the supporting shell 1. An inlet pipe 3 is connected to the top side of the filter tank 2, and an outlet pipe 4 is connected to the bottom of the filter tank 2. Both the initial end of the inlet pipe 3 and the end of the outlet pipe 4 are equipped with connecting valves 5. The connecting valves 5 are located on the outside of the supporting shell 1, and the connecting valve 5 on the inlet pipe 3 is connected to a paper processing device (not shown in the figure), while the connecting valve 5 on the outlet pipe 4 is connected to a white water recycling device (not shown in the figure). When the white water in the paper processing device needs to be replaced, both connecting valves 5 are opened simultaneously. The white water in the paper processing device is transported to the filter tank 2 through the inlet pipe 3 for filtration, thereby filtering out fine fibers and other solid impurities in the white water. After filtration, the white water is discharged from the outlet pipe 4 to the white water recycling device for recycling.

[0033] The filter tank 2 has an opening at the top, and a cover 6 is installed at the opening. A support frame 7 is installed at the bottom of the cover 6 and placed inside the filter tank 2. The support frame 7 is equipped with a filter module 8 for filtering white water. After the white water flows into the filter tank 2, it flows from top to bottom through the filter module 8 and is filtered. After filtration is completed, the cover 6 is removed from the opening at the top of the filter tank 2 from bottom to top, so that the filter module 8 can be taken out of the filter tank 2 for subsequent cleaning of fine fibers and other solid impurities filtered out of the filter module 8.

[0034] A connecting frame 9 is installed on the top of the tank cover 6. The support housing 1 is equipped with a control module 10 that is connected to the connecting frame 9 and is used to control the tank cover 6 to move up and down and laterally. When it is necessary to clean the fine fibers and other solid impurities on the filter module 8, the control module 10 is operated to first control the tank cover 6 to move upward, thereby moving the filter module 8 upward together. After the filter module 8 is brought out of the filter tank 2, the tank cover 6 is then controlled to move laterally to the designated position for cleaning. After cleaning is completed, the control module 10 controls the tank cover 6 to reset.

[0035] like Figure 5-7 As shown, the support frame 7 is elastically slidably disposed at the bottom of the groove cover 6. Specifically, the support frame 7 has a cavity 71 formed inside, and the inner side wall of the cavity 71 is provided with a groove rod 72 with a sliding groove. A vertically arranged guide rod 73 is fixedly disposed in the groove of the groove rod 72. The bottom of the groove cover 6 is provided with a vertically arranged slide rod 74 placed in the cavity 71. The guide rod 73 is slidably disposed at the bottom end of the slide rod 74. A first spring 75 is wound around the slide rod 74. The first spring 75 is placed above the bottom end of the slide rod 74 to apply an upward thrust to the groove rod 72. After a downward pulling force is applied to the support frame 7, the guide rod 73 slides downward on the bottom end of the slide rod 74, and the first spring 75 is gradually compressed so that the support frame 7 slides downward at the bottom of the groove cover 6. When the force applied to the first spring 75 is stopped, the compression of the first spring 75 applies an upward pushing force to the slide rod 72, thereby pushing the support frame 7 to slide upward at the bottom of the groove cover 6 and achieving automatic reset.

[0036] In this embodiment, the filter module 8 includes several connecting frames 81, which are spaced apart along the sliding direction of the support frame 7 (i.e., arranged in an equidistant array along the vertical direction). Each connecting frame 81 is provided with a filter screen 82 for filtering white water. The filter screens 82 are located directly below and spaced apart from the tank cover 6, and the mesh size of each filter screen 82 decreases sequentially from top to bottom to achieve graded filtration. After the white water to be filtered flows into the filter tank 2, it flows sequentially through each filter screen 82 from top to bottom, from the filter screen with larger mesh size to the filter screen with smaller mesh size, thus performing graded filtration of the white water. After multiple filtrations, fine fibers and other solid impurities in the white water can be effectively filtered out, improving the filtration effect.

[0037] In addition, each connecting frame 81 is provided with a laterally arranged rotating shaft 83 on its side. The rotating shaft 83 is rotatably mounted on the support frame 7. The end of each rotating shaft 83 extends into the receiving chamber 71 and is equipped with a transmission gear 84. The slot cover 6 is equipped with a vertically arranged rack 85 placed in the receiving chamber 71. Each transmission gear 84 meshes with the rack 85. As the slot cover 6 moves upward, the support frame 7 moves downward along with several filter screens 82. At the same time, the rack 85 drives each transmission gear 84 to rotate clockwise (the direction of rotation is...). Figure 6 (Based on this), thereby controlling each filter screen 82 to rotate clockwise together. After rotating 90 degrees, the top surfaces of each filter screen 82 are rotated from a horizontal arrangement to a vertical arrangement (e.g., Figure 3 As shown), and each filter screen 82 is vertically aligned. Then, the cover 6 and support frame 7 are controlled to move laterally, carrying the vertically arranged filter screens 82 to the designated position for cleaning.

[0038] In order to apply tension to the support frame 7, a hook groove 11 is formed on the bottom end of the support frame 7 away from the connecting frame 81. A cylinder 12 is installed on the top of the support housing 1, and the extension and retraction direction of the cylinder 12 telescopic rod is perpendicular to the movement direction of the support frame 7. A stop 13 for engaging in the hook groove 11 is fixedly provided at the end of the cylinder 12 telescopic rod. The stop 13 is arranged laterally, and its length direction is parallel to the lateral movement direction of the groove cover 6. Specifically, the operation control module 10 first controls the tank cover 6 to move upward, thereby moving the support frame 7 and several filter screens 82 upward together. After the support frame 7 and several filter screens 82 are brought out of the filter tank 2, the hook groove 11 on the side of the bottom end of the support frame 7 aligns with the stop member 13. At this time, the operation cylinder 12 pushes the stop member 13 to move towards the hook groove 11 and until it is engaged in the hook groove 11. Then, the control module 10 controls the tank cover 6 to move upward a certain distance again. The support frame 7 is blocked by the stop member 13 and cannot move upward further, so that the tank cover 6 moves upward with the rack 85, driving each filter screen 82 from the horizontal... The filter screen 82 is rotated to a vertical position, and the control module 10 then controls the lateral movement of the trough cover 6. The support frame 7 and the vertically arranged filter screen 82 move laterally together. During the movement, the stop 13 is always engaged in the hook groove 11 and slides within the hook groove 11, so that each filter screen 82 remains vertically arranged during the lateral movement. After the filter screen 82 moves laterally to the designated cleaning position, it can be cleaned. Rotating the horizontally arranged filter screen 82 to a vertical position and making each filter screen 82 flush is to facilitate the simultaneous cleaning of several filter screens 82 and improve cleaning efficiency.

[0039] The top of the support housing 1 is equipped with a scraping assembly 15 for simultaneously cleaning the surfaces of several filter screens 82 from top to bottom. After the vertically arranged filter screens 82 move laterally to the designated cleaning position, the side of the filter screens 82 with fine fibers and other solid impurities attached comes into contact with the scraping assembly 15. At this time, the scraping assembly 15 is activated, and the scraping end of the scraping assembly 15 moves from top to bottom to simultaneously clean the surfaces of several filter screens 82. After multiple scrapings, the fine fibers and other solid impurities attached to the surface of the filter screens 82 can be thoroughly scraped off. In addition, a collection frame 16 is provided directly below the scraping assembly 15 to collect the scraped fine fibers and other solid impurities. During the scraping process, the fine fibers and other solid impurities automatically fall into the collection frame 16 for recycling.

[0040] The stop 13 is equipped with several rollers 14 arranged in an array along its length to reduce the friction between it and the inner bottom wall of the hook groove 11. When the stop 13 is engaged in the hook groove 11, the rollers 14 contact the inner bottom wall of the hook groove 11. During the lateral movement of the support frame 7, the rollers 14 roll on the inner bottom wall of the hook groove 11 to reduce the friction between the stop 13 and the hook groove 11, making the lateral movement smoother.

[0041] like Figure 8 As shown, the control module 10 includes a slide rail 101 installed on the inner side wall of the support housing 1 and arranged laterally. A movable frame 102 is slidably mounted on the slide rail 101, and a first driving part for driving the movable frame 102 to slide laterally is installed at the bottom of the support housing 1. A pair of vertically arranged first threaded rods 103 are rotatably mounted on the movable frame 102 and respectively placed on both sides of the filter tank 2. A pair of vertically arranged threaded sleeves 104 are provided on the connecting frame 9. Each threaded sleeve 104 is coaxially arranged and threadedly connected to a different first threaded rod 103. A pair of second driving parts for driving different first threaded rods 103 to rotate synchronously are installed on the movable frame 102. First, the pair of second drive units are operated simultaneously to drive the first threaded rods 103 on both sides to rotate synchronously. Under the threaded engagement with the threaded sleeve 104, the threaded sleeve 104 is driven to move upward. Through the connecting frame 9, the groove cover 6 is driven to move upward together, and each filter screen 82 is brought out from the filter groove 2. After being brought out and each filter groove 2 is rotated to a vertical arrangement, the first drive unit is operated to drive the movable frame 102 to move laterally, thereby moving the vertically arranged filter screen 82 laterally together, realizing the control of several filter screens 82 to move up and down and laterally.

[0042] In this embodiment, the first driving unit includes a fixed base 107 disposed at the bottom of the support housing 1. The fixed base 107 is rotatably equipped with a second threaded rod 108 whose axis is parallel to the length direction of the slide rail 101. The second threaded rod 108 is threadedly connected to the movable frame 102. The fixed base 107 is equipped with a second servo motor 109 for driving the second threaded rod 108 to rotate. The output shaft of the second servo motor 109 is connected to the end of the second threaded rod 108 through a coupling. By running the second servo motor 109 to drive the second threaded rod 108 to rotate, the movable frame 102 can be driven to move laterally on the slide rail 101 under the action of the threaded connection with the movable frame 102.

[0043] The second drive unit includes a first servo motor 105 mounted on the movable frame 102. The output shaft of the first servo motor 105 is connected to the bottom end of the first threaded rod 103 via a first bevel gear set 106. The first bevel gear set 106 consists of two meshing bevel gears. By operating the first servo motor 105, the first threaded rod 103 is driven to rotate under the transmission action of the first bevel gear set 106, thereby controlling the up-and-down movement of the slot cover 6.

[0044] like Figure 9-10 As shown, the scraping assembly 15 includes a support rod 1501 that is vertically arranged on the top of the support housing 1, a lifting frame 1502 that is slidably disposed on the support rod 1501, and a third drive unit for driving the lifting frame 1502 to slide up and down. A sliding frame 1507 is slidably disposed on the lifting frame 1502, and the sliding direction of the sliding frame 1507 is parallel to the sliding direction of the movable frame 102. The lifting frame 1502 is equipped with an electric push rod 1508 whose telescopic rod extension direction is consistent with the sliding direction of the sliding frame 1507. The telescopic rod end of the electric push rod 1508 is fixedly disposed with the sliding frame 1507. The sliding frame 1507 is provided with a fixing plate 1509. By operating the third drive unit, the lifting frame 1502 can be controlled to slide up and down on the support rod 1501, thereby moving the fixed plate 1509 up and down. In addition, by operating the electric push rod 1508, its telescopic rod extends or retracts, thereby controlling the fixed plate 1509 to move laterally on the lifting frame 1502, and the direction of movement is parallel to the sliding direction of the movable frame 102.

[0045] In addition, a sliding chamber 1512 is formed inside the fixed plate 1509. A slider 1513 is laterally slidably arranged inside the sliding chamber 1512. The sliding direction of the slider 1513 is parallel to the sliding direction of the sliding frame 1507. The slider 1513 is provided with a connecting rod 1514, and the end of the connecting rod 1514 away from the slider 1513 extends to the outside of the fixed plate 1509. A second spring 1515 is provided inside the sliding chamber 1512 for applying a force to the slider 1513 in the direction of the connecting rod 1514. A mounting plate 1510 is fixedly installed on the end of the connecting rod 1514 extending to the outside of the fixed plate 1509. A scraping element 1511 is mounted on the mounting plate 1510. The scraping end of the scraping element 1511 is arranged inclined downwards. The scraping element 1511 can be a scraper or a brush. By setting up a sliding chamber 1512 and a slider 1513, the mounting plate 1510 and the scraper 1511 are laterally slidably mounted on the fixed plate 1509. First, the lifting frame 1502 is controlled to move upwards to its highest point. Then, the control module 10 controls several vertically arranged filter screens 82 to move laterally to the designated cleaning position. Next, the electric push rod 1508 is activated, extending its telescopic rod to control the fixed plate 1509 to move towards the filter screens 82. After the scraping end of the scraper 1511 contacts the surface of the filter screen 82 that needs cleaning, the fixed plate 1509 continues to move a certain distance. The second spring 1515 is compressed under pressure, thus applying a force towards the filter screen 82 to the mounting plate 1510 and the scraper 1511, causing the scraping end of the scraper 1511 to press against the surface of the filter screen 82 that needs cleaning. After cleaning the surface, the lifting frame 1502 is then controlled to move downwards, allowing for simultaneous cleaning of the surfaces of several filter screens 82 from top to bottom. This process removes fine fibers and other solid impurities adhering to the surfaces of the filter screens 82 in one go, which are then collected and recycled by the collection frame 16. This process is repeated multiple times to achieve thorough cleaning. Once cleaning is complete, the filter screens 82 are controlled to move laterally and downwards in the opposite direction to reset. During the downward reset process, the filter screens 82 rotate from a vertical arrangement to a horizontal arrangement to continue filtering subsequent white water. Through these steps, the surfaces of the filter screens 82 are automatically cleaned, greatly improving the filtration efficiency of this recycling tank. This recycling tank does not require additional operation by personnel, reducing labor costs.

[0046] The third drive unit includes a support bearing 1504 mounted on the top of the support housing 1, with a vertically arranged third threaded rod 1503 rotatably mounted on the support bearing 1504. The third threaded rod 1503 is threadedly connected to the lifting frame 1502. It also includes a third servo motor 1505 mounted inside the support housing 1. The output shaft of the third servo motor 1505 is connected to the bottom end of the third threaded rod 1503 via a second bevel gear set 1506, which has the same structure as the first bevel gear set 106. By operating the third servo motor 1505, the third threaded rod 1503 is driven to rotate under the transmission action of the second bevel gear set 1506, thereby controlling the lifting frame 1502 to move up and down, thus moving the scraping component 1511 up and down to scrape the filter screen 82.

[0047] In summary, the present invention possesses the excellent characteristics described above, which enhances its effectiveness in use compared to previous technologies, making it a highly practical product.

[0048] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A white water recycling and treatment tank, characterized in that: It includes a support housing (1) and a filter tank (2) installed inside the support housing (1). The top of the filter tank (2) is provided with a slot and a cover (6) is provided at the slot. The bottom of the cover (6) is provided with a support frame (7) placed inside the filter tank (2). The support frame (7) is provided with a filter module (8) for filtering white water. The top of the cover (6) is provided with a connecting frame (9). The support housing (1) is provided with a control module (10) connected to the connecting frame (9) and used to control the up-down and lateral movement of the cover (6). The support frame (7) is elastically slidably mounted on the bottom of the slot cover (6); The filter module (8) includes several connecting frames (81) spaced apart along the sliding direction of the support frame (7). Each connecting frame (81) is provided with a filter screen (82), and the mesh size of each filter screen (82) decreases from top to bottom. Each connecting frame (81) is provided with a rotating shaft (83) arranged laterally in the axial direction. The rotating shaft (83) is rotatably mounted on the support frame (7). The end of each rotating shaft (83) extends into the accommodating chamber (71) and is equipped with a transmission gear (84). The slot cover (6) is equipped with a rack (85) arranged vertically and placed in the accommodating chamber (71). Each transmission gear (84) meshes with the rack (85). The bottom end of the support frame (7) is formed with a hook groove (11) on the side away from the connecting frame (81). The top of the support housing (1) is equipped with a cylinder (12) arranged in a horizontal position. The extension direction of the cylinder (12) extension rod is perpendicular to the movement direction of the support frame (7). The end of the extension rod of the cylinder (12) is fixedly provided with a stop (13) for engaging in the hook groove (11). The stop (13) is arranged in a horizontal direction, and its length direction is parallel to the horizontal movement direction of the groove cover (6).

2. The white water recycling tank according to claim 1, characterized in that: The support frame (7) has a cavity (71) inside. The inner wall of the cavity (71) is provided with a sliding rod (72). A vertically arranged guide rod (73) is provided in the groove of the sliding rod (72). The bottom of the groove cover (6) is provided with a sliding rod (74). The guide rod (73) is slidably disposed at the bottom end of the sliding rod (74). A first spring (75) is placed above the bottom end of the sliding rod (74) to apply an upward pushing force to the sliding rod (72).

3. The white water recycling tank according to claim 1, characterized in that: The top side of the filter tank (2) is connected to the liquid inlet pipe (3), and the bottom of the filter tank (2) is connected to the liquid outlet pipe (4); the stop (13) is equipped with several rollers (14) arranged in an array along its length direction to reduce the friction between itself and the bottom wall of the hook groove (11).

4. The white water recycling tank according to claim 1, characterized in that: The control module (10) includes a slide rail (101) installed on the inner side wall of the support housing (1) and arranged laterally. A movable frame (102) is slidably arranged on the slide rail (101), and a first driving part for driving the movable frame (102) to slide laterally is installed at the bottom of the support housing (1). A pair of vertically arranged first threaded rods (103) are rotatably arranged on the movable frame (102) and respectively placed on both sides of the filter tank (2). A pair of vertically arranged threaded sleeves (104) are provided on the connecting frame (9). Each threaded sleeve (104) is coaxially arranged and threadedly connected to a different first threaded rod (103). A pair of second driving parts for driving different first threaded rods (103) to rotate synchronously are installed on the movable frame (102).

5. A white water recycling tank according to claim 4, characterized in that: The first drive unit includes a fixed seat (107) disposed at the bottom of the support housing (1). The fixed seat (107) is rotatably provided with a second threaded rod (108) whose axis is parallel to the length direction of the slide rail (101). The second threaded rod (108) is threadedly connected to the movable frame (102). The fixed seat (107) is equipped with a second servo motor (109) for driving the second threaded rod (108) to rotate. The output shaft of the second servo motor (109) is connected to the end of the second threaded rod (108) through a coupling.

6. The white water recycling tank according to claim 5, characterized in that: The second drive unit includes a first servo motor (105) mounted on the movable frame (102), and the output shaft of the first servo motor (105) is connected to the bottom end of the first threaded rod (103) via a first bevel gear set (106).

7. A white water recycling tank according to claim 1, characterized in that: The top of the support housing (1) is equipped with a scraping assembly (15) for simultaneously cleaning the surfaces of several filters (82) from top to bottom.

8. A white water recycling tank according to claim 7, characterized in that: The scraping assembly (15) includes a support rod (1501) arranged vertically on the top of the support housing (1), and a lifting frame (1502) slidably mounted on the support rod (1501) and a third drive unit for driving the lifting frame (1502) to slide up and down. A sliding frame (1507) is slidably mounted on the lifting frame (1502), and the sliding direction of the sliding frame (1507) is parallel to the sliding direction of the movable frame (102). The lifting frame (1502) is equipped with an electric push rod (1508) whose telescopic rod extension direction is consistent with the sliding direction of the sliding frame (1507). The telescopic rod end of the electric push rod (1508) is fixedly mounted to the sliding frame (1507). The sliding frame (1507) is equipped with a fixing plate (1509), and the fixing plate (1509) is equipped with a scraping part for contacting the surface of the filter screen (82).

9. A white water recycling tank according to claim 8, characterized in that: The scraping part includes a sliding chamber (1512) formed inside the fixed plate (1509). A slider (1513) is laterally slidably arranged inside the sliding chamber (1512). The sliding direction of the slider (1513) is parallel to the sliding direction of the sliding frame (1507). The slider (1513) is provided with a connecting rod (1514), and one end of the connecting rod (1514) away from the slider (1513) extends to the outside of the fixed plate (1509). A second spring (1515) is provided inside the sliding chamber (1512) for applying a force to the slider (1513) in the direction of the connecting rod (1514). A mounting plate (1510) is fixedly provided on the end of the connecting rod (1514) extending to the outside of the fixed plate (1509). A scraping element (1511) is mounted on the mounting plate (1510).

10. A white water recycling treatment tank according to claim 1, characterized in that: The scraping element (1511) can be a scraper or a brush, and the scraping end of the scraping element (1511) is arranged to be inclined downward.

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