A sludge treatment device and process for underground water tanks

Abstract

This invention relates to the field of sludge treatment technology, and more particularly to a sludge treatment device and process for underground water tanks. It includes: a filter press body; several filtration units disposed on the filter press body; each filtration unit includes: a sliding frame, a filter plate, a filter cloth, a rotating gear, a shrinkage assembly, and a self-locking assembly; two sliding frames are slidably connected to the filter press body, and both sliding frames are rotatably connected to the filter plate; the filter cloth is disposed on the filter plate; the rotating gear is fixedly connected to a drive shaft of the filter plate. This invention improves the cleaning effect of the filter cloth by keeping the filter plate in a horizontal state, reducing the supporting force of the filter cloth on the sludge, and simultaneously switching the sludge injection channels on the filter plate from horizontal to vertical, causing the sludge located in the sludge injection channels on the filter plate to fall downwards under its own weight.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, and in particular to a sludge treatment device and process for underground water tanks. Background Technology

[0002] Cleaning sludge from the bottom water tank of a coal mine is an important maintenance task, aiming to ensure the normal operation of the water tank and prevent overflows and blockages caused by sludge accumulation. Effective sludge cleaning helps improve coal mine safety and reduce environmental pollution. This process involves converting the bottom sludge in the water tank into lumpy coal sludge, requiring a plate filter press for solid-liquid separation. The plate filter press mainly uses a hydraulic system to tightly press the filter plates together, forming a sealed chamber. Under pressure, the liquid is discharged through the filter cloth, while solid particles are trapped and gradually form a filter cake. When the filter cake reaches a certain thickness, the machine needs to be stopped, and the filter plates loosened, allowing the filter cake to fall off under gravity, completing the cleaning process. Because coal-containing sludge has a high organic content or contains a large amount of hydrophilic substances, it increases the viscosity of the sludge, making it difficult for the filter cake to completely detach from the filter cloth after pressing. Furthermore, the sludge in the sludge injection channels in the middle of the filter plates cannot separate from the filter cloth under gravity due to the support of the filter plates, resulting in inadequate sludge cleaning on the filter cloth and shortening the single-cycle working time of the filter press. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a sludge treatment device and process for underground water tanks.

[0004] The technical implementation scheme of the present invention is as follows: a sludge treatment device for underground water tanks, comprising:

[0005] Filter press body;

[0006] There are two plate pulling trolleys, which are slidably connected to the filter press body. The filter press body is provided with two electric slide rails, which are used to drive the adjacent plate pulling trolleys to move.

[0007] A filter unit, comprising several units, is disposed on the filter press body and is used to be assembled with each other to filter water-containing sludge.

[0008] A rotating assembly, mounted on one of the two pull-plate trolleys, is used to drive the filter unit to rotate;

[0009] The filtration unit includes: a sliding frame, a filter plate, a filter cloth, a rotating gear, a shrinking assembly, and a self-locking assembly;

[0010] The sliding frame has two components, which are slidably connected to the filter press body, and both sliding frames are rotatably connected to the filter plate.

[0011] The filter cloth is disposed on the filter plate, and the filter plate is provided with a dirt injection channel, through which the filter cloth passes;

[0012] The rotating gear is fixedly connected to the filter plate via a drive shaft, and the rotating gear is fixedly connected to the drive shaft of the filter plate.

[0013] The shrinking component is disposed on the filter plate and is used to shrink the filter cloth;

[0014] The self-locking component is disposed on the filter plate and is used to stabilize the state of the filter plate.

[0015] More preferably, the rotating assembly includes:

[0016] The first slide rail is fixedly connected to the pull plate trolley;

[0017] The first fixed frame is a slider that is fixedly connected to the first slide rail;

[0018] A first motor is fixedly connected to the first fixed frame, and a first gear is fixedly connected to the output shaft of the first motor. The first gear is used to mesh with the rotating gear.

[0019] More preferably, the self-locking component includes:

[0020] An insert shaft is slidably connected to the sliding frame, and the insert shaft is slidably connected to the drive shaft of the filter plate, used to lock the state of the filter plate and the sliding frame;

[0021] A first elastic element is disposed between the sliding frame and the insertion shaft;

[0022] A trigger rod is fixedly connected to the insertion shaft, and the first fixing bracket is used to drive the trigger rod to move synchronously.

[0023] More preferably, it also includes a shrink-fit component:

[0024] There are four rotating shafts, all of which are rotatably connected to the filter plate. The filter cloth is fixedly connected between the four rotating shafts and is wound around the outside of the four rotating shafts. A second elastic element is provided between the rotating shaft and the filter plate. Four sliding shafts are fixedly connected to the middle of the filter cloth. A connecting frame is fixedly connected to the filter plate. The sliding shafts are slidably connected to the connecting frame on the filter plate.

[0025] The triggering components are two in number and are respectively disposed on both sides of the filter plate, for driving the sliding shaft to slide along the filter plate.

[0026] More preferably, the triggering component includes:

[0027] A rack and pinion frame is provided, wherein the filter plate is fixedly connected to a connecting frame, and the rack and pinion frame is slidably connected to the connecting frame of the filter plate.

[0028] A push plate is fixedly connected to the rack frame, and the push plate is in contact with two adjacent sliding shafts;

[0029] Two third elastic elements are disposed between the sliding shaft and the connecting frame of the filter plate.

[0030] More preferably, a pull rope is fixedly connected between the sliding shaft and two adjacent rotating shafts, and the pull rope is wound around the outside of the rotating shaft. Several fixing blocks are fixedly connected between the pull rope and the filter cloth.

[0031] More preferably, the fixing blocks on both sides of the filter plate are staggered to evenly distribute the internal forces of the filter cloth.

[0032] More preferably, the filter cloth is wound in opposite directions on the two rotating shafts, and the pull ropes located on the same rotating shafts are wound in the same direction as the filter cloth, so as to make the pull ropes adapt to the shape changes of the filter cloth.

[0033] More preferably, it also includes a driving component:

[0034] Two drive assemblies are respectively mounted on the two pull plate trolleys and are used to drive the rack carrier to move. The drive assembly includes:

[0035] The second slide rail is fixedly connected to the pull plate trolley;

[0036] The second fixing bracket is fixedly connected to the slider of the second slide rail;

[0037] The second motor is fixedly connected to the second fixed frame, and the output shaft of the second motor is fixedly connected to the third gear, which meshes with the rack frame.

[0038] A process for treating sludge from a well water tank, using the aforementioned well water tank sludge treatment equipment, includes the following steps:

[0039] Step 1: When it is necessary to clean the filter cake inside the filter press, open the two pull plate trolleys, connect the pull plate trolleys with the sliding frame, and drive the filter plate to slide to an open position through the two sliding frames. At this time, some of the mud plates fall off due to gravity. Then, connect the rotating gear with the first gear.

[0040] Step 2: During the process of the rotating gear engaging with the first gear, the first fixed frame pushes the trigger rod, causing the trigger rod to drive the insert shaft to release the limiting position between the sliding frame and the filter plate, allowing the filter plate to rotate freely;

[0041] Step 3: After the limit of the sliding frame and the filter plate is released and the rotating gear is connected to the first gear, turn on the first motor so that the output end of the first motor drives the filter plate to first deflect 90° clockwise through the first gear and the rotating gear, and then reset and deflect 90° counterclockwise, so that the impurities on the filter cloth fall off due to gravity.

[0042] Step 4: After the filter plate rotates 90°, the third gear engages with the rack and pinion, the second motor is turned on, and the rack and pinion causes the filter cloth to hang down through the sliding shaft. Then the output end of the second motor rotates quickly in the opposite direction, so that the filter cloth quickly returns to its original tension and the impurities on it fall off due to the tension of the filter cloth.

[0043] Step 5: When the slide shaft drives the filter cloth to fall, the slide shaft pulls two adjacent pull ropes, causing the pull ropes to drive several fixed blocks on them to adapt to the falling state of the filter cloth, limit the side of the filter cloth, and disperse the force inside the filter cloth.

[0044] Step 6: After cleaning the filter cloth on one filter plate, repeat the above steps to clean the filter cloth on the remaining filter plates in turn, until all filter cloths are cleaned.

[0045] The present invention has the following advantages: 1. By making the filter plate horizontal, the present invention reduces the supporting force of the filter cloth on the sludge, and at the same time switches the sludge injection channel on the filter plate from horizontal to vertical, so that the sludge in the sludge injection channel on the filter plate falls downward under its own gravity, thereby improving the cleaning effect of the filter cloth on the filter plate.

[0046] 2. By using the insert shaft to limit the sliding frame and filter plate, the filter plate is kept in a vertical position while being pulled by the plate-pulling trolley, which avoids the filter plate from shifting due to uneven distribution of internal impurities, thus affecting the rotation angle of subsequent filter plates.

[0047] 3. By letting the filter cloth hang loosely and then quickly rolling up both ends of the filter cloth, the filter cloth is quickly tightened. By repeating this process, the impurities attached to the filter cloth are separated from the filter cloth through its own tension, further improving the cleaning effect of the filter cloth.

[0048] 4. By using a pull rope and several fixing blocks, the number of fixing points on the side of the filter cloth is increased, which disperses the torsional force of the filter cloth against the second elastic element. At the same time, the fixing blocks limit the side of the filter cloth to prevent the side of the filter cloth from curling when it returns to a taut state from a loose state. Attached Figure Description

[0049] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0050] Figure 2 This is a three-dimensional structural diagram of the pull plate trolley and sliding frame of the present invention;

[0051] Figure 3This is a three-dimensional structural diagram of the sliding frame and filter plate of the present invention;

[0052] Figure 4 This is a three-dimensional structural diagram of the first gear and the rotating gear of the present invention;

[0053] Figure 5 This is a three-dimensional structural diagram of the insert shaft and the first elastic element of the present invention;

[0054] Figure 6 This is a three-dimensional structural diagram of the rotating shaft and the second elastic element of the present invention;

[0055] Figure 7 This is a three-dimensional structural diagram of the rotating shaft and pull rope of the present invention;

[0056] Figure 8 This is a three-dimensional structural diagram of the rack frame and push plate of the present invention;

[0057] Figure 9 This is a three-dimensional structural diagram of the rack frame and the third gear of the present invention;

[0058] Figure 10 This is a three-dimensional structural diagram of the second motor and the third gear of the present invention.

[0059] The components in the attached diagram are labeled as follows: 1-Filter press body, 2-Pulling trolley, 3-Sliding frame, 4-Filter plate, 5-Filter cloth, 6-Rotating gear, 201-First slide rail, 202-First fixed frame, 203-First motor, 204-First gear, 301-Insertion shaft, 302-First elastic element, 303-Trigger rod, 401-Rotating shaft, 402-Second elastic element, 403-Slide shaft, 404-Rack frame, 405-Push plate, 406-Third elastic element, 407-Pulling rope, 408-Fixing block, 501-Second slide rail, 502-Second fixed frame, 503-Second motor, 504-Third gear. Detailed Implementation

[0060] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used herein refer only to the position of the illustrated structure in the corresponding drawings. The component numbers used herein, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Furthermore, the term "connection," unless otherwise specified, includes both direct and indirect connections.

[0061] When processing coal-containing sludge, the sludge contains a high proportion of organic matter and a large amount of hydrophilic components, resulting in high viscosity and adhesion. This makes it difficult for the filter cake formed during the filtration process to fall off the filter cloth naturally after filtration, especially near the sludge injection channels in the middle of the filter plate. The sludge in this area is supported by the filter plate structure and cannot be separated from the filter cloth by gravity, resulting in incomplete cleaning of the sludge on the surface of the filter cloth. This situation not only reduces the cleaning effect of the filter press, but also forces the equipment to stop frequently for manual cleaning, significantly shortening the actual effective working time of the filter press.

[0062] A type of underground water tank sludge treatment equipment, such as Figures 1-5 As shown, the system includes: a filter press body 1; two plate pulling trolleys 2, slidably connected to the filter press body 1, the filter press body 1 having two electric slide rails, each used to drive the adjacent plate pulling trolley 2 to move; several filter units, disposed on the filter press body 1, used to interlock for filtering water-containing sludge; a rotating assembly, disposed on one of the two plate pulling trolleys 2, used to drive the filter unit to rotate; the filter unit includes: a sliding frame 3, filter plates 4, and filter cloth 5. The filter press includes a rotating gear 6, a shrinking assembly, and a self-locking assembly; two sliding frames 3 slidably connected to the filter press body 1, both of which are rotatably connected to the filter plate 4; a filter cloth 5 disposed on the filter plate 4, the filter plate 4 having a dirt injection channel through which the filter cloth 5 passes; a rotating gear 6 fixedly connected to a drive shaft on the filter plate 4, the rotating gear 6 being fixedly connected to the drive shaft of the filter plate 4; a shrinking assembly disposed on the filter plate 4 for shrinking the filter cloth 5; and a self-locking assembly disposed on the filter plate 4 for stabilizing the state of the filter plate 4.

[0063] In the above scheme, the filter press body 1 consists of a main frame, a thrust plate, a pressing plate, a feeding system, and a discharging system. All of the above components are existing technologies and are common knowledge to those skilled in the art, so they will not be described in detail here. The plate pulling trolley 2 is existing technology and can dock with two sliding frames 3 and drive them to move synchronously. It is used to separate two adjacent filter plates 4 and allow the filter cake between them to fall naturally. The filter plate 4 is provided with a sludge injection channel in the middle for injecting the wastewater to be filtered. The filter cloth 5 consists of two rectangular cloths and one cylindrical cloth. The cylindrical cloth is located in the sludge injection channel of the filter plate 4. The filter cloth 5 is made of nylon and has extremely high mechanical strength, wear resistance, and temperature resistance. By keeping the filter plate 4 in a horizontal state, the supporting force of the filter cloth 5 on the sludge is reduced. At the same time, the sludge injection channel on the filter plate 4 is switched from a horizontal to a vertical state, so that the sludge in the sludge injection channel on the filter plate 4 falls downward under its own weight, thereby improving the cleaning effect of the filter cloth 5 on the filter plate 4.

[0064] Specifically, such as Figure 4 and Figure 5As shown, the rotating assembly includes: a first slide rail 201, fixedly connected to the pull plate trolley 2; a first fixed frame 202, fixedly connected to the slider of the first slide rail 201; a first motor 203, fixedly connected to the first fixed frame 202, and the output shaft of the first motor 203 is fixedly connected to a first gear 204, which is used to mesh with the rotating gear 6.

[0065] In the above scheme, the first slide rail 201 is used to drive the first fixed frame 202 to slide up and down. The first fixed frame 202 is fixedly connected to the telescopic end of the electric push rod or the slider of the electric slide rail. The first motor 203 can be a servo motor or an electric rotating ring, which is used to make the first gear 204 rotate. In the initial state, the slider of the first slide rail 201 drives the first fixed frame 202 to the bottom, so that the first gear 204 and the rotating gear 6 are misaligned, avoiding the first gear 204 from directly engaging with the rotating gear 6 and getting stuck. The first slide rail 201 and the first motor 203 are both sealed to prevent external moisture from entering the interior and damaging the internal electronic components. The exterior of the first gear 204 and the rotating gear 6 are both provided with an anti-rust coating, such as a chromium coating.

[0066] Specifically, such as Figure 4 and Figure 5 As shown, the self-locking assembly includes: a shaft 301, which is slidably connected to the sliding frame 3 and slidably connected to the drive shaft of the filter plate 4, for locking the state of the filter plate 4 and the sliding frame 3; a first elastic element 302, which is disposed between the sliding frame 3 and the shaft 301; and a trigger rod 303, which is fixedly connected to the shaft 301, and the first fixing frame 202 is used to drive the trigger rod 303 to move synchronously.

[0067] In the above scheme, the insertion shaft 301 is made of high-strength steel with high shear strength, which improves the stability of the filter plate 4 and the sliding frame 3. The first elastic element 302 is a tension spring and is rust-proofed. The first elastic element 302 is used to drive the insertion shaft 301 to reset. The trigger rod 303 is in contact with the first fixed frame 202. In the initial state, the height difference between the first gear 204 and the rotating gear 6 is greater than the depth of the insertion shaft 301 entering the drive shaft of the filter plate 4. This is used to separate the insertion shaft 301 from the drive shaft of the filter plate 4 when the first gear 204 and the rotating gear 6 are connected.

[0068] Working Principle: The filter press requires periodic cleaning of internal impurities to ensure its normal operation. When cleaning is needed, the filter press is stopped, and the compression and fixing of several filter plates 4 are released. Then, the two electric slide rails are opened, causing the two plate-pulling trolleys 2 to move along the filter press body 1. This continues until the two plate-pulling trolleys 2 are respectively engaged with adjacent sliding frames 3. The two plate-pulling trolleys 2 then jointly drive the filter plates 4 to slide along the filter press body 1 via the two sliding frames 3. At this point, the filter plate 4 separates from the adjacent filter plates 4, and most of the mud plate between them is no longer under pressure and falls downwards due to its own weight. This continues until the filter plate 4 moves to an open position (a position convenient for the filter plate 4 to flip). Then, the movement of the plate-pulling trolleys 2 is stopped, and the first slide rail 201 is opened, allowing the first slide rail 201 to... The slider drives the first fixed frame 202 to move upward. At the same time, the first fixed frame 202 presses the trigger rod 303. The trigger rod 303 drives the insertion shaft 301 to slide along the transmission shaft on the sliding frame 3 and the filter plate 4. At the same time, the first elastic element 302 is stretched. This continues until the insertion shaft 301 separates from the transmission shaft on the filter plate 4, releasing the insertion shaft 301 from limiting the sliding frame 3 and the filter plate 4. At this time, the filter plate 4 can rotate freely along the two sliding frames 3. The insertion shaft 301 limits the sliding frame 3 and the filter plate 4, keeping the filter plate 4 in a vertical state. This prevents tilting due to internal impurities causing center offset, which would affect the rotation angle of the filter plate 4. At the same time, the first fixed frame 202 drives the first gear 204 on its output shaft to connect with the rotating gear 6 through the first motor 203. Then, the first slide rail 201 is closed and the first motor 203 is turned on.

[0069] After the first gear 204 and the rotating gear 6 are engaged, the first motor 203 is turned on, causing the output shaft of the first motor 203 to drive the rotating gear 6 to rotate 90° clockwise via the first gear 204. This causes the rotating gear 6 to drive the filter plate 4 to rotate 90° synchronously. Then, the first motor 203 is turned off. At this time, the rectangular cloth of the filter cloth 5 on the filter plate 4 is switched to a horizontal state and is located on the upper and lower sides of the filter plate 4, reducing the supporting force of the rectangular cloth below the filter plate 4 on the sludge. At the same time, the sludge in the sludge inlet channels on the filter plate 4 is no longer supported by the filter plate 4. Under its own gravity, the sludge falls downwards. Then, the first motor 203 is turned on, causing the output shaft of the first motor 203 to drive the filter plate 4 to rotate counterclockwise by 180° through the first gear 204 and the rotating gear 6. This causes the rectangular cloth on the upper side to switch to the lower side of the filter plate 4, enhancing the gravitational force of the sludge on the rectangular cloth, causing it to fall downwards under gravity. By alternately keeping the filter plate 4 in a horizontal state, the gravitational force of the sludge on the filter cloth 5 is enhanced. At the same time, the sludge located in the sludge injection channel on the filter plate 4 falls downwards under its own gravity, improving the cleaning effect of the filter cloth 5 on the filter plate 4.

[0070] After the filter cloth 5 on the filter plate 4 is cleaned, the first motor 203 is turned on, so that the output shaft of the first motor 203 drives the filter plate 4 to rotate 90° clockwise through the rotating gear 6 and the first gear 204, and resets it to the initial state. Then the first motor 203 is turned off, the first slide rail 201 is turned on, so that the slider of the first slide rail 201 drives the first fixed frame 202 to reset downward to the initial state, so that the rotating gear 6 and the first gear 204 are separated. At the same time, the first elastic element 302 drives the trigger rod 303 to move downward synchronously, so that the trigger rod 303 drives the insertion shaft 301 to slide into the rotating shaft of the sliding frame 3, so that the sliding frame 3 limits the filter plate 4. Then the two pull plate trolleys 2 are controlled to separate from the sliding frame 3 and dock with the sliding frame 3 of the next filter plate 4. The above steps are repeated until the filter cloth 5 on all filter plates 4 has been cleaned, that is, the filter press body 1 is cleaned.

[0071] In this embodiment, the filter cloth 5 and the filter plate 4 are fixedly connected, but this is only applicable to this embodiment. In other embodiments, the filter cloth 5 is disposed on the filter plate 4. Please refer to the specific description in the following embodiments.

[0072] In a further embodiment, such as Figures 6-10 As shown, it also includes: four rotating shafts 401, all rotatably connected to the filter plate 4; filter cloth 5 fixedly connected between the four rotating shafts 401; the filter cloth 5 is wound around the outside of the four rotating shafts 401; a second elastic element 402 is provided between the rotating shafts 401 and the filter plate 4; four sliding shafts 403 are fixedly connected to the middle of the filter cloth 5; a connecting frame is fixedly connected to the filter plate 4; and the sliding shafts 403 are slidably connected to the connecting frame on the filter plate 4; and two triggering components, respectively provided on both sides of the filter plate 4, for driving the sliding shafts 403 to slide along the filter plate 4.

[0073] In the above scheme, the two rotating shafts 401 on the upper and lower sides of the filter plate 4 are divided into a group. The two rectangular cloths of the filter cloth 5 are wrapped around the two adjacent rotating shafts 401 on the upper and lower sides respectively. The second elastic element 402 is a torsion spring and is rust-proofed. It is used to drive the adjacent rotating shafts 401 to reset. The sliding shaft 403 is fixedly connected to the middle of the rectangular cloth of the filter cloth 5, so that the filter cloth 5 can hang down and become loose. The filter cloth 5 and the sliding shaft 403 are detachably fixedly connected, which facilitates the replacement of the filter cloth 5.

[0074] Specifically, such as Figures 8-10As shown, the triggering assembly includes: a rack frame 404, a connecting frame fixedly connected to the filter plate 4, and the rack frame 404 slidably connected to the connecting frame of the filter plate 4; a push plate 405, fixedly connected to the rack frame 404, and the push plate 405 is in contact with two adjacent sliding shafts 403; two third elastic elements 406, which are disposed between the sliding shaft 403 and the connecting frame of the filter plate 4; a pull rope 407 is fixedly connected between the sliding shaft 403 and two adjacent rotating shafts 401, and the pull rope 407 is wound around the outside of the rotating shaft 401, and several fixing blocks 408 are fixedly connected between the pull rope 407 and the filter cloth 5; the fixing blocks 408 on both sides of the filter plate 4 are staggered to evenly distribute the internal force of the filter cloth 5; the winding direction of the filter cloth 5 on the two rotating shafts 401 is opposite, and the winding direction of the pull rope 407 on the same rotating shaft 401 is the same as that of the filter cloth 5, so that the pull rope 407 can adapt to the shape change of the filter cloth 5.

[0075] In the above scheme, the rack frame 404 is externally coated with an anti-rust coating, such as a chromium coating. The third elastic element 406 is a spring that has also undergone anti-rust treatment, used to drive the sliding shaft 403 to reset. The pull rope 407 is made of metal and has a certain structural strength. The pull rope 407 is initially in a vertical state, which facilitates the sliding shaft 403 to directly pull the rotating shaft 401 to rotate via the pull rope 407. Figure 6 With the direction as the reference, the fixing blocks 408 located on the front and rear sides of the filter plate 4 are staggered to fix the filter cloth 5 in an alternating manner, further dispersing the force within the filter cloth 5. At the same time, the fixing blocks 408 and the filter cloth 5 are both detachably fixed, which facilitates the disassembly and replacement of the filter cloth 5. The upper and lower sides of the rectangular cloth of the filter cloth 5 are opposite to the winding direction on the two adjacent rotating shafts 401, which facilitates the loose hanging of the filter cloth 5. The winding direction of the filter cloth 5 on the rotating shaft 401 and the pull rope 407 is the same, which is used to adapt to the change in the position of the side of the filter cloth 5.

[0076] Specifically, such as Figure 9 and Figure 10 As shown, it also includes: a drive assembly, of which there are two, respectively disposed on two pull plate trolleys 2, for driving the rack frame 404 to move. The drive assembly includes: a second slide rail 501, fixedly connected to the pull plate trolley 2; a second fixed frame 502, fixedly connected to the slider of the second slide rail 501; a second motor 503, fixedly connected to the second fixed frame 502, and the output shaft of the second motor 503 is fixedly connected to a third gear 504, which meshes with the rack frame 404.

[0077] In the above scheme, the second slide rail 501 and the second motor 503 are both sealed to prevent external moisture from entering and causing damage. The second slide rail 501 is used to drive the second fixed frame 502 to slide left and right. The third gear 504 is provided with an anti-rust coating, such as a chromium coating. In the initial state, there is a height difference between the rack frame 404 and the third gear 504, which facilitates the docking of the rack frame 404 and the third gear 504.

[0078] Working principle: When the filter plate 4 is in a horizontal state, the two second slide rails 501 are opened. The sliders of the second slide rails 501 drive the second fixed frame 502 to move laterally, so that the second fixed frame 502 drives the third gear 504 on the output shaft of the second motor 503 to engage with the rack frame 404. Then, the second motor 503 is turned on, so that the output shaft of the second motor 503 drives the third gear 504 to rotate. The third gear 504 drives the rack frame 404 to slide downward along the connecting frame on the filter plate 4. At this time, the third elastic element 406 located below is compressed. The rack frame 404 drives the push plate 405 to move downward synchronously. The push plate 405 pushes the lower slide shaft 403 to move downward synchronously. The two lower slide shafts 403 drive the middle part of the rectangular filter cloth 5 to move downward synchronously. The middle part of the filter cloth 5 moves downward and pulls its two ends. The rectangular cloth of the filter cloth 5 pulls the rotating shafts 401 on both sides to rotate along the filter plate 4. At the same time, the two second elastic elements 402 are twisted. This continues until the two second elastic elements 402 are twisted to their limit. At this time, the output shaft of the second motor 503 quickly rotates in the opposite direction to reset to the initial state. The two second elastic elements 402 immediately roll up the two ends of the rectangular cloth of the filter cloth 5. At the same time, the third elastic element 406 drives the middle part of the rectangular cloth of the filter cloth 5 to reset through the sliding shaft 403. This cycle is repeated. By making the rectangular cloth of the filter cloth 5 loose and hanging down, and then quickly rolling up the two ends of the rectangular cloth of the filter cloth 5, the rectangular cloth of the filter cloth 5 is quickly tightened. This cycle is repeated. Through the tension of the filter cloth 5 itself, the impurities attached to it are separated from the filter cloth 5, which further improves the cleaning degree of the filter cloth 5.

[0079] After the filter cloth 5 is cleaned, the second slide rail 501 is opened, so that the slider of the second slide rail 501 drives the third gear 504 to return to the initial state through the second fixed frame 502. Then the second slide rail 501 is closed, and then the output shaft of the first motor 203 drives the filter plate 4 to rotate 180° in the opposite direction. The first motor 203 is closed and the second slide rail 501 is opened, so that the slider of the second slide rail 501 moves laterally in the opposite direction, so that the third gear 504 meshes with the rack frame 404 again. The above steps are repeated to shrink and tighten the other rectangular cloth. After cleaning, the second slide rail 501 is opened, so that the slider of the second slide rail 501 drives the third gear 504 to return to the initial state. This cycle is repeated until the filter cloth 5 on all filter plates 4 is cleaned.

[0080] When the sliding shaft 403 causes the middle of the rectangular filter cloth 5 to droop downwards, the sliding shaft 403 pulls two adjacent pull ropes 407, causing the pull ropes 407 to pull the adjacent rotating shaft 401. Under the combined action of the rectangular filter cloth 5 and the pull ropes 407, the rotating shaft 401 rotates along the filter plate 4, reducing the force of the rectangular filter cloth 5 against the torsion of the second elastic element 402. At the same time, the pull ropes 407 drive the linear array of fixing blocks 408 on them to move synchronously. The pull ropes 407 follow the synchronous change of the side of the filter cloth 5, presenting an inclined state, so that the pull ropes 407 adapt to the loose shape of the rectangular filter cloth 5. At the same time, several fixing blocks 408 fix the side of the rectangular filter cloth 5 at multiple points, further dispersing the internal force of the rectangular filter cloth 5 and extending the service life of the filter cloth 5. At the same time, several fixing blocks 408 limit the side of the filter cloth 5, preventing the side of the filter cloth 5 from curling when returning from a loose state to a taut state.

[0081] In a further embodiment, such as Figures 1-10 As shown, a sludge treatment process for underground water tanks, using the aforementioned underground water tank sludge treatment equipment, includes the following steps:

[0082] Step 1: When it is necessary to clean the filter cake inside the filter press, open the two pull plate trolleys 2, so that the pull plate trolleys 2 are connected with the sliding frame 3, and the filter plate 4 is moved to an open position by the two sliding frames 3. At this time, some mud plates fall off due to gravity, and then the rotating gear 6 is connected with the first gear 204.

[0083] Step 2: During the process of rotating gear 6 engaging with first gear 204, first fixed frame 202 pushes trigger rod 303, causing trigger rod 303 to drive insert shaft 301 to release the limiting position between sliding frame 3 and filter plate 4, allowing filter plate 4 to rotate freely;

[0084] Step 3: When the limit of the sliding frame 3 and the filter plate 4 is released and the rotating gear 6 is connected to the first gear 204, the first motor 203 is turned on, so that the output end of the first motor 203 drives the filter plate 4 to first deflect 90° clockwise through the first gear 204 and the rotating gear 6, and then reset and deflect 90° counterclockwise, so that the impurities on the filter cloth 5 fall off due to gravity.

[0085] Step 4: After the filter plate 4 rotates 90°, the third gear 504 is engaged with the rack frame 404. The second motor 503 is turned on, so that the rack frame 404 causes the filter cloth 5 to hang down through the sliding shaft 403. Then the output end of the second motor 503 rotates rapidly in the opposite direction, so that the filter cloth 5 quickly returns to its original tension, and the impurities on it fall off due to the tension of the filter cloth 5.

[0086] Step 5: When the slide shaft 403 drives the filter cloth 5 to fall, the slide shaft 403 pulls two adjacent pull ropes 407, so that the pull ropes 407 drive several fixed blocks 408 on them to adapt to the falling state of the filter cloth 5, limit the side of the filter cloth 5, and disperse the force inside the filter cloth 5.

[0087] Step 6: After cleaning the filter cloth 5 on one filter plate 4, repeat the above steps to clean the filter cloth 5 on the remaining filter plates 4 in turn, until all filter cloths 5 are cleaned.

[0088] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sludge treatment device for underground water tanks, characterized in that it comprises: Filter press body (1); There are two plate pulling trolleys (2), which are slidably connected to the filter press body (1). The filter press body (1) is provided with two electric slide rails, which are used to drive the adjacent plate pulling trolleys (2) to move. A filter unit, comprising several units, is disposed on the filter press body (1) and is used to be spliced ​​together to filter water-containing sludge; A rotating assembly is mounted on one of the two pull-plate trolleys (2) to drive the filter unit to rotate; The filtration unit includes: a sliding frame (3), a filter plate (4), a filter cloth (5), a rotating gear (6), a shrinking assembly, and a self-locking assembly; The sliding frame (3) has two parts, which are slidably connected to the filter press body (1), and both sliding frames (3) are rotatably connected to the filter plate (4); The filter cloth (5) is disposed on the filter plate (4), the filter plate (4) is provided with a dirt injection channel, and the filter cloth (5) passes through the dirt injection channel; The rotating gear (6) and the filter plate (4) are fixedly connected to a drive shaft, and the rotating gear (6) and the drive shaft of the filter plate (4) are fixedly connected; The rotating assembly includes: The first slide rail (201) is fixedly connected to the pull plate trolley (2); The first fixed frame (202) is fixedly connected to the slider of the first slide rail (201); The first motor (203) is fixedly connected to the first fixed frame (202), and the output shaft of the first motor (203) is fixedly connected to the first gear (204), which meshes with the rotating gear (6). The shrinking component is disposed on the filter plate (4) and is used to shrink the filter cloth (5). The shrinkage component includes: There are four rotating shafts (401), all of which are rotatably connected to the filter plate (4). The filter cloth (5) is fixedly connected between the four rotating shafts (401). The filter cloth (5) is wound around the outside of the four rotating shafts (401). A second elastic element (402) is provided between the rotating shaft (401) and the filter plate (4). Four sliding shafts (403) are fixedly connected to the middle of the filter cloth (5). A connecting frame is fixedly connected to the filter plate (4). The sliding shafts (403) are slidably connected to the connecting frame on the filter plate (4). Two trigger components are respectively disposed on both sides of the filter plate (4) to drive the sliding shaft (403) to slide along the filter plate (4); The self-locking component is disposed on the filter plate (4) and is used to stabilize the state of the filter plate (4); The self-locking component includes: Insert shaft (301) is slidably connected to the sliding frame (3). Insert shaft (301) is slidably connected to the drive shaft of the filter plate (4) and is used to lock the state of the filter plate (4) and the sliding frame (3). A first elastic element (302) is disposed between the sliding frame (3) and the insert shaft (301); The trigger rod (303) is fixedly connected to the insert shaft (301), and the first fixing frame (202) is used to drive the trigger rod (303) to move synchronously.

2. The sludge treatment equipment for underground water tanks according to claim 1, characterized in that, The triggering component includes: A rack frame (404) is fixedly connected to the filter plate (4), and the rack frame (404) is slidably connected to the connecting frame of the filter plate (4); A push plate (405) is fixedly connected to the rack frame (404), and the push plate (405) is in contact with the two adjacent sliding shafts (403); Two third elastic elements (406) are disposed between the sliding shaft (403) and the connecting frame of the filter plate (4).

3. The sludge treatment equipment for underground water tanks according to claim 2, characterized in that, A pull rope (407) is fixedly connected between the sliding shaft (403) and the two adjacent rotating shafts (401), and the pull rope (407) is wound around the outside of the rotating shaft (401). A number of fixing blocks (408) are fixedly connected between the pull rope (407) and the filter cloth (5).

4. The sludge treatment equipment for a well water tank according to claim 3, characterized in that, The fixing blocks (408) on both sides of the filter plate (4) are staggered to uniformly disperse the internal forces of the filter cloth (5).

5. The sludge treatment equipment for a well water tank according to claim 4, characterized in that, The filter cloth (5) is wound in opposite directions on the two rotating shafts (401), and the pull rope (407) located on the same rotating shaft (401) is wound in the same direction as the filter cloth (5), so as to make the pull rope (407) adapt to the shape change of the filter cloth (5).

6. The sludge treatment equipment for underground water tanks according to claim 5, characterized in that, It also includes: The drive assembly has two components, each mounted on one of the two pull-plate trolleys (2), for driving the rack frame (404) to move. The drive assembly includes: The second slide rail (501) is fixedly connected to the pull plate trolley (2); The second fixing bracket (502) is fixedly connected to the slider of the second slide rail (501); The second motor (503) is fixedly connected to the second fixed frame (502). The output shaft of the second motor (503) is fixedly connected to the third gear (504), which meshes with the rack frame (404).

7. A process for treating sludge from a well water tank, comprising the sludge treatment equipment for a well water tank according to claim 6, characterized in that, Includes the following steps: Step 1: When it is necessary to clean the filter cake inside the filter press, open the two pull plate trolleys (2) so that the pull plate trolleys (2) are connected with the sliding frame (3) and the filter plate (4) is moved to an open position by the two sliding frames (3). At this time, some mud plates fall off due to gravity. Then, the rotating gear (6) is connected with the first gear (204). Step 2: During the process of rotating gear (6) docking with first gear (204), first fixed frame (202) pushes trigger rod (303), so that trigger rod (303) drives insert shaft (301) to release the limit between sliding frame (3) and filter plate (4), so that filter plate (4) can rotate freely; Step 3: When the limit of the sliding frame (3) and the filter plate (4) is released and the rotating gear (6) is connected to the first gear (204), turn on the first motor (203), so that the output end of the first motor (203) drives the filter plate (4) to first deflect 90° clockwise through the first gear (204) and the rotating gear (6), and then reset to deflect 90° counterclockwise, so that the impurities on the filter cloth (5) fall off due to gravity; Step 4: After the filter plate (4) rotates 90°, the third gear (504) is connected to the rack frame (404), the second motor (503) is turned on, and the rack frame (404) causes the filter cloth (5) to hang down through the sliding shaft (403). Then the output end of the second motor (503) rotates quickly in the opposite direction, so that the filter cloth (5) quickly returns to its original tension, and the impurities on it fall off due to the tension of the filter cloth (5). Step 5: When the slide shaft (403) drives the filter cloth (5) to fall, the slide shaft (403) pulls two adjacent pull ropes (407), so that the pull ropes (407) drive several fixed blocks (408) on them to adapt to the falling state of the filter cloth (5), limit the side of the filter cloth (5), and disperse the force inside the filter cloth (5). Step 6: After cleaning the filter cloth (5) on one filter plate (4), repeat the above steps to clean the filter cloth (5) on the remaining filter plates (4) in turn, until all filter cloths (5) are cleaned.

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