An industrial sewage treatment equipment with plate-frame dredging integrated structure

Abstract

The application relates to the technical field of filter presses and discloses an industrial sewage treatment equipment with a plate-frame dredging integrated structure, which comprises a rack and filter plates, the rack comprises a thrust plate and a pressing seat, the thrust plate and the pressing seat are fixedly connected through a cross beam, the outer side of the cross beam is provided with a separating piece for separating the filter plates, the separating piece comprises a rotating shaft, the rotating shaft is fixed to the outer side of the cross beam through a bearing seat arranged on the circumferential outer surface of the rotating shaft, the circumferential outer surface of the rotating shaft is provided with separating blocks, and the separating blocks are arranged in an array along the central axis of the rotating shaft. The industrial sewage treatment equipment with the plate-frame dredging integrated structure, after the filter plate group is loosened by an oil cylinder, the filter plates are often closely combined due to the adhesion of filter cakes or the hydraulic adsorption effect, an operator usually needs to use a plate pulling trolley to separate the filter plates in a single-block and sequential-pushing-and-pulling mode, which leads to the problems of long filter plate separation period and low dredging efficiency.

Description

Technical Field

[0001] This invention relates to the field of filter press technology, and more specifically to an industrial wastewater treatment equipment with an integrated plate and frame sludge removal structure. Background Technology

[0002] Industrial wastewater treatment is a core technological aspect of environmental protection. Plate and frame filter presses, with their advantages of compact structure, high filtration efficiency, low filter cake moisture content, and convenient operation, are widely used in solid-liquid separation and dredging of industrial wastewater in industries such as chemical, metallurgical, and mining.

[0003] The core structure of existing plate and frame industrial wastewater treatment equipment mainly includes a frame, filter plate assemblies, hydraulic cylinders, and auxiliary cleaning structures. Its working principle is as follows: the hydraulic cylinder drives the filter plate assemblies to fit tightly together, forming a sealed filtration chamber. After industrial wastewater enters the filtration chamber, the solid particles in the wastewater are trapped by the filter plates to form a filter cake, and the clean water passes through the filter plates to achieve purification and discharge. After the filtration operation is completed, the filter plate assemblies need to be separated one by one to clean the filter cake trapped on the surface of the filter plates, thus completing the cleaning operation and entering the next round of filtration cycle. However, when the hydraulic cylinder releases the filter plate assembly, the filter plates are often tightly stuck together due to the adhesion of the filter cake or the hydraulic adsorption. Operators usually need to use a pull plate trolley to separate the filter plates one by one by pushing and pulling. This leads to the problems of long filter plate separation cycle and low cleaning efficiency. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an industrial wastewater treatment device with an integrated plate and frame sludge removal structure. This effectively solves the problem in existing technologies where, after the oil cylinder releases the filter plate assembly, the filter plates are often tightly adhered to each other due to the adhesion of the filter cake or hydraulic adsorption. Operators typically need to pull a plate trolley to separate the filter plates one by one, which leads to long filter plate separation cycles and low sludge removal efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an industrial wastewater treatment equipment with an integrated plate and frame sludge removal structure, including a frame. The frame is characterized in that it is provided with a filter plate for dewatering wastewater by pressure filtration. The frame includes a thrust plate and a pressing seat, and the thrust plate and the pressing seat are fixedly connected by a crossbeam. The thrust plate, the pressing seat, and the crossbeam together form an assembly cavity for assembling the filter plate. The filter plate is provided in multiple arrays along the center plane of the crossbeam. The outer side of the filter plate is equipped with an ear plate, which is fitted to the top of the crossbeam to achieve sliding guidance of the filter plate. The outer side of the crossbeam is equipped with a separation component for separating the filter plates. The separation component includes a rotating shaft, which is fixed to the outer side of the crossbeam by a bearing seat disposed on its outer circumference. The outer circumference of the rotating shaft is equipped with a separation block, and multiple separation blocks are arranged in an array along the central axis of the rotating shaft. The frame is equipped with a pusher for moving the filter plates. After the pusher presses the filter plates together with a preset pressure, a filter cavity for industrial wastewater pressure filtration is formed between adjacent filter plates.

[0006] Furthermore, the pushing component includes a pressing plate mounted on the crossbeam, and the pressing seat is equipped with a hydraulic cylinder connected to the pressing plate. The pressing plate is moved along the length of the crossbeam by the extension and retraction of the hydraulic cylinder, thereby realizing the pressing and loosening of the filter plate.

[0007] Furthermore, the separating block near the ear plate adopts an inclined guide slope structure design, and a magnetic component is fixedly connected to the outer side of the crossbeam. The magnetic component is magnetically connected to the separating block, and the separating block is equipped with an internal support mechanism through a cavity set inside it.

[0008] Furthermore, the internal support mechanism includes a counterweight block slidably connected within the cavity, and the counterweight block is connected to the inner wall of the cavity via a return spring disposed on its outer side, the outer side of the counterweight block being designed with an inclined surface.

[0009] Furthermore, the cavity is slidably connected to an inner support rod that fits against the inclined surface of the counterweight through a mounting hole provided inside it, and there are two inner support rods that are staggered in the cavity. The inner support rods are connected to the inner wall of the cavity through an elastic frame provided inside them.

[0010] Furthermore, the rotating shaft is fitted with a drive shaft through a through hole provided inside it. The outer diameter of the drive shaft is smaller than the inner diameter of the through hole, and the central axis of the drive shaft is collinear with the central axis of the through hole. The outer circumference of the rotating shaft is provided with a slot that communicates with the through hole. The outer side of the separating block is provided with a slot that communicates with the slot. The separating block is slidably connected to an abutment plate extending to the through hole via a guide rail provided on its outer side. The abutment plate is connected to the inner wall of the slot via a compression spring provided on its outer side.

[0011] Furthermore, a ratchet is fixedly connected to the end of the rotating shaft, and two ratchets are provided and symmetrically distributed along the central plane of the rotating shaft. A pawl that meshes with the ratchet is fitted on the outer circumference of the drive shaft, and a cam that fits against the outer side of the abutment plate is fixedly connected to the outer circumference of the drive shaft.

[0012] Furthermore, the crossbeam is equipped with a rotary mechanism for driving the drive shaft to rotate; The rotary mechanism includes a drive motor fixedly installed inside the crossbeam, and the output end of the drive motor is fixedly connected to a drive gear. The drive shaft is fixedly connected to a driven gear that meshes with the drive gear at one end near the drive motor.

[0013] The technical solution provided by this invention has the following advantages compared with the prior art: This invention includes a separation component. Multiple separation blocks are arrayed on the outer circumference of the rotating shaft, and each separation block is equipped with an internal support mechanism. A drive motor drives the drive shaft to rotate via gear meshing, and through ratchet and pawl unidirectional meshing transmission, the rotating shaft rotates synchronously. All separation blocks synchronously rotate from the horizontal position to the vertical position. During the tilting process of the separation blocks, the internal counterweights slide down under gravity, pushing the internal support rods outward. All internal support rods simultaneously exert a supporting force on the ear plates of adjacent filter plates, forcing all filter plates on the crossbeam to move along the horizontal direction. The beams slide in opposite directions, completing the separation of the entire filter plate group in one go. When the separation block rotates back to the vertical position, the magnetic components on the outside of the beam are energized to generate magnetic attraction force, which adsorbs and limits the separation block. The drive shaft rotates in the opposite direction, causing the cam to rotate continuously. The cam flange intermittently contacts the abutment plate, pushing the abutment plate to push the ear plate back and forth, causing the filter plate to vibrate vertically at high frequency. The inertial force generated by the vibration directly destroys the mechanical interlocking structure between the filter cake and the filter cloth, forcing the fine sludge particles embedded in the pores of the filter cloth to fall off. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the three-dimensional separation structure of the filter plate and the frame according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the three-dimensional separation structure of the rotary mechanism according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the three-dimensional separation structure of the internal support mechanism in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the rotating shaft according to an embodiment of the present invention; Figure 6 This is a cross-sectional planar structural diagram of the separation block according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the planar state transformation structure of the separation block according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the three-dimensional state transformation structure of the cam according to an embodiment of the present invention.

[0016] The labels in the diagram represent: 1. Frame; 11. Thrust plate; 12. Pressing seat; 13. Crossbeam; 131. Magnetic component; 132. Drive motor; 133. Drive gear; 134. Driven gear; 14. Pressing plate; 15. Hydraulic cylinder; 2. Filter plate; 21. Ear plate; 3. Separator; 31. Shaft; 311. Through hole; 312. Slot; 313. Ratchet; 32. Bearing seat; 33. Separator block; 331. Groove; 332. Abutment plate; 333. Compression spring; 34. Cavity; 35. Internal support mechanism; 351. Counterweight; 352. Return spring; 353. Internal support rod; 354. Elastic frame; 36. Drive shaft; 361. Pawl; 362. Cam. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] The present invention will be further described below with reference to embodiments.

[0019] Example: Please see Figures 1-8 The present invention provides a technical solution: an industrial wastewater treatment equipment with an integrated plate and frame dredging structure, including a frame 1, characterized in that the frame 1 is provided with a filter plate 2 for dewatering wastewater by pressure filtration, the frame 1 includes a thrust plate 11 and a pressing seat 12, and the thrust plate 11 and the pressing seat 12 are fixedly connected by a crossbeam 13. The thrust plate 11, the pressing seat 12, and the crossbeam 13 together form an assembly cavity for assembling the filter plate 2. The filter plate 2 is provided with multiple plates arranged in an array along the center surface of the crossbeam 13. The outer side of the filter plate 2 is equipped with an ear plate 21, which is fitted to the top of the crossbeam 13 to achieve sliding guidance of the filter plate 2. The bottom of the ear plate 21 is equipped with a roller, which can reduce the friction between the ear plate 21 and the crossbeam 13, and facilitate the smoothness of the movement of the filter plate 2. The roller is made of a flexible material. The outer side of the crossbeam 13 is equipped with a separation component 3 for separating the filter plate 2. The separation component 3 includes a rotating shaft 31. The rotating shaft 31 is fixed to the outer side of the crossbeam 13 by a bearing seat 32 provided on its circumferential outer surface. The circumferential outer surface of the rotating shaft 31 is equipped with a separation block 33, and multiple separation blocks 33 are provided and arranged in an array along the central axis of the rotating shaft 31. The frame 1 is equipped with a pusher for moving the filter plates 2. After the pusher presses the filter plates 2 with a preset pressure, a filter cavity for industrial wastewater pressure filtration is formed between adjacent filter plates 2.

[0020] The pusher includes a pressing plate 14 mounted on the crossbeam 13. The pressing seat 12 is equipped with a hydraulic cylinder 15 connected to the pressing plate 14. The pressing plate 14 is moved along the length of the crossbeam 13 by the extension and retraction of the hydraulic cylinder 15, so as to realize the pressing and loosening of the filter plate 2.

[0021] The separating block 33 adopts an inclined guide slope structure design on the side near the ear plate 21. A magnetic component 131 is fixedly connected to the outside of the crossbeam 13, and the magnetic component 131 is magnetically connected to the separating block 33. The separating block 33 is equipped with an internal support mechanism 35 through the cavity 34 set inside it.

[0022] The internal support mechanism 35 includes a counterweight 351 that is slidably connected in the cavity 34, and the counterweight 351 is connected to the inner wall of the cavity 34 by a return spring 352 disposed on its outer side. The outer side of the counterweight 351 is designed with a slope.

[0023] The cavity 34 is slidably connected to an inner support rod 353 that fits against the inclined surface of the counterweight 351 via a mounting hole inside it. Two inner support rods 353 are provided and staggered within the cavity 34. The inner support rods 353 are connected to the inner wall of the cavity 34 via an elastic frame 354. Ball bearings are fitted inside the inner support rods 353. The core movement of the inner support rods 353 is axial sliding along the mounting hole within the cavity 34, with its end continuously in contact and sliding relative to the inclined surface of the counterweight 351. After the ball bearings are fitted, the surface-to-surface sliding friction between the inner support rod 353 and the inner wall of the mounting hole, and the inclined surface sliding friction between the end of the inner support rod 353 and the inclined surface of the counterweight 351, are all converted into rolling friction of the ball bearings. The coefficient of rolling friction is much smaller than the coefficient of sliding friction, which significantly reduces the overall resistance during the sliding process of the inner support rod 353 and prevents the inner support rod 353 from jamming due to excessive friction.

[0024] The rotating shaft 31 is fitted with a drive shaft 36 through a through hole 311 inside it. The outer diameter of the drive shaft 36 is smaller than the inner diameter of the through hole 311, and the central axis of the drive shaft 36 is collinear with the central axis of the through hole 311. The outer circumferential surface of the rotating shaft 31 is provided with a slot 312 that communicates with the through hole 311. The outer side of the separating block 33 is provided with a slot 331 that communicates with the slot 312. The separating block 33 is slidably connected to an abutment plate 332 that extends to the through hole 311 via a guide rail provided on its outer side. The abutment plate 332 is connected to the inner wall of the slot 331 via a compression spring 333 provided on its outer side.

[0025] A ratchet 313 is fixedly connected to the end of the rotating shaft 31, and there are two ratchet 313s that are symmetrically distributed along the central plane of the rotating shaft 31. A pawl 361 that meshes with the ratchet 313 is mounted on the outer circumference of the drive shaft 36. A cam 362 that fits against the outer side of the abutment plate 332 is fixedly connected to the outer circumference of the drive shaft 36.

[0026] The crossbeam 13 is equipped with a rotary mechanism for driving the drive shaft 36 to rotate; The rotary mechanism includes a drive motor 132 fixedly installed in the crossbeam 13, and the output end of the drive motor 132 is fixedly connected to a drive gear 133. The drive shaft 36 is fixedly connected to a driven gear 134 that meshes with the drive gear 133 at one end near the drive motor 132.

[0027] Working principle and advantages of this integrated plate-and-frame dredging industrial wastewater treatment equipment: The core structure of existing plate and frame industrial wastewater treatment equipment mainly includes a frame 1, filter plates 2, hydraulic cylinders 15, and auxiliary sludge removal structures. Its working principle is as follows: hydraulic cylinders 15 drive the filter plates 2 to fit tightly together, forming a sealed filtration chamber. Figure 1 As shown, a feed pipe is installed in the middle of the thrust plate 11, and discharge pipes are installed at the four corners of the thrust plate 11. After treatment, the industrial wastewater to be treated is pumped into the filter press through the feed pipe by the feed pump. At this time, the wastewater to be treated will quickly fill the filter chamber formed by the adjacent filter plates 2, and the filtrate will be discharged from the discharge pipe. The substances that cannot pass through the filter cloth will remain in the filter chamber to form a filter cake. After the filtration operation is completed, the filter plates 2 need to be separated one by one, and the filter cake trapped on the surface of the filter plates 2 needs to be cleaned to complete the sludge removal operation, and then the next round of filtration cycle can begin.

[0028] However, when the pressing mechanism loosens the filter plate 2 group, the filter plates 2 are often tightly stuck together due to the adhesion of the filter cake or the hydraulic adsorption. Operators usually use a pull plate trolley to push and pull the filter plates 2 one by one from the filter plate 2 group. This "separation one by one" has a long separation cycle and low desliming efficiency.

[0029] In this invention, after the filtration operation is completed, the hydraulic cylinder 15 assembled inside the pressing seat 12 is activated first. The piston rod of the hydraulic cylinder 15 is controlled to retract, driving the pressing plate 14, which is rigidly connected to the piston rod, to move axially back to the pressing seat 12 along the length of the crossbeam 13 to the initial assembly position. At this time, the filter plates 2, which are arrayed along the center plane of the crossbeam 13, lose the axial pressing force of the pressing plate 14. The pressing state of the filter plate 2 group is released, and the filter plates 2 can slide along the crossbeam 13, creating structural conditions for the subsequent separation process.

[0030] After the filter plate 2 is loosened, the drive motor 132 of the internal rotary mechanism of the crossbeam 13 is started. The output shaft of the drive motor 132 drives the active gear 133 mounted at its end to rotate at a constant speed. Through the meshing and transmission of the active gear 133 and the driven gear 134, the power is transmitted to the drive shaft 36 and drives the drive shaft 36 to rotate at a constant speed in the positive direction along its central axis. Both sides of the crossbeam 13 of this equipment are equipped with the same specification rotary mechanism. The external control unit realizes the synchronous start and stop, speed and direction control of the drive motors 132 on both sides, ensuring that the drive shafts 36 on both sides rotate synchronously at the same speed, and ensuring that the filter plate 2 is subjected to uniform force.

[0031] During the forward rotation of the drive shaft 36, the pawl 361 mounted on its outer circumference and the ratchet 313 at the end of the shaft 31 form a one-way meshing transmission, thereby driving the shaft 31, which is rotatably connected to the crossbeam 13 through the bearing seat 32, to rotate synchronously with the drive shaft 36 along its central axis. Multiple evenly distributed separation blocks 33 on the outer circumference of the shaft 31 rotate synchronously. The rotation direction is from the initial horizontal position to the vertical position. The side of the separation block 33 facing the ear plate 21 has an inclined guide slope structure. The slope is gradually thickened along the rotation direction of the separation block 33. When the separation block 33 is in the initial horizontal position, a clearance is reserved between it and the ear plate 21 in the vertical direction to avoid mechanical interference between the filter plate 2 and the separation block 33 when it moves along the crossbeam 13.

[0032] During the forward rotation of the separating block 33, the thinnest end of its inclined surface first extends into the gap between two adjacent ear plates 21 until the separating block 33 is completely rotated to the vertical position. At this time, the magnetic component 131 mounted on the outside of the crossbeam 13 is activated. The magnetic component 131 generates a magnetic attraction force to attract and limit the separating block 33, thereby fixing the position of the separating block 33. Then the drive motor 132 stops running.

[0033] During the repositioning of the separating block 33 from the horizontal station to the vertical station, the cavity 34 inside it tilts synchronously with the separating block 33. The counterweight block 351, which is slidably connected inside the cavity 34, generates a downward force along the inner wall of the cavity 34 under the action of gravity. When the separating block 33 tilts to the critical angle, the downward force overcomes the elastic threshold of the return spring 352, forcing the counterweight block 351 to make a directional sliding motion along the inner wall of the cavity 34. The outer side of the counterweight block 351 is a sloped structure. During its sliding process, it forms a sloped contact with the ends of the two staggered inner support rods 353 provided with the mounting holes in the cavity 34. The ends of the inner support rods 353 near the counterweight block 351 are rounded to reduce the frictional resistance of the sloped contact.

[0034] It is worth noting that the inner support rods 353 are staggered in the cavity 34. The core function of the inner support rods 353 is to slide outward and exert a supporting force on the ear plate 21 of the filter plate 2. The ear plate 21 is a blocky rigid structure. If the two inner support rods 353 are arranged parallel to each other, the supporting force will be concentrated on the same axis of the ear plate 21, which can easily cause excessive local stress and deformation of the ear plate 21. It can also cause the ear plate 21 to be tilted due to the reaction force when the filter plate 2 slides because the supporting point is singular. The staggered distribution places the supporting points of the two inner support rods 353 at different positions on the ear plate 21, forming a multi-point distributed supporting surface. The supporting force evenly covers the stress area of ​​the ear plate 21, which not only avoids local deformation of the ear plate 21, but also allows the filter plate 2 to slide smoothly along the crossbeam 13 under the action of the supporting force, ensuring the stability of the separation of the filter plate 2 from the stress end.

[0035] The sliding extrusion force of the counterweight 351 overcomes the elastic threshold of the inner elastic frame 354 of the inner support rod 353, pushing the two inner support rods 353 to slide synchronously to the limit position along their central axis to the outside of the cavity 34. At this time, the effective radial dimension of the separation block 33 increases, forming an outward supporting force on the two adjacent ear plates 21, forcing the ear plates 21 to drive the filter plates 2 to slide in opposite directions along the crossbeam 13. Since all the separation blocks 33 distributed in the array on the outer circumference of the rotating shaft 31 complete the action of the inner support mechanism 35 synchronously, all the filter plates 2 on the crossbeam 13 achieve synchronous separation, completing the separation operation of the filter plate 2 group in one go, greatly shortening the separation cycle of the filter plate 2.

[0036] When the separating block 33 rotates to the critical tilt angle, the downward force just overcomes the elastic tension of the return spring 352 and the total elastic threshold of the elastic frame 354, forcing the counterweight 351 to slide directionally along the inner wall of the cavity 34, thereby squeezing the inner support rod 353 and triggering its extension. At this critical tilt angle, the position of the inner support rod 353 installed on the separating block 33 has extended into the gap of the adjacent ear plate 21, but a small top support clearance is still reserved between the main structure of the separating block 33 and the ear plate 21. The two do not make any hard contact or mechanical interference. At the same time, the rotation direction of the separating block 33 is matched with the extension direction of the inner support rod 353. After the inner support rod 353 extends outward, it will directly act on the inner force surface of the ear plate 21.

[0037] Multiple separation blocks 33 are arrayed on the outer circumference of the rotating shaft 31 of the equipment, and each separation block 33 is equipped with an internal support mechanism 35. The drive motor 132 drives the drive shaft 36 to rotate through gear meshing. The ratchet 313 and pawl 361 drive the rotating shaft 31 to rotate synchronously. All separation blocks 33 rotate synchronously from the horizontal position to the vertical position. During the tilting process of the separation block 33, the internal counterweight block 351 slides down under the force of gravity, pushing the internal support rod 353 to extend outward. All internal support rods 353 simultaneously form a supporting force on the ear plate 21 of the adjacent filter plate 2, forcing all filter plates 2 on the crossbeam 13 to slide back and forth along the crossbeam 13, completing the separation operation of the entire group of filter plates 2 in one go, replacing the existing technology of "separating one by one", and greatly shortening the separation time.

[0038] After the filter plates 2 are separated synchronously, most of the filter cake between the filter plates 2 falls into the filter cake collection mechanism below the equipment under the action of gravity. The filter cloth of the filter plate 2 is a porous medium woven with fibers. Its surface has a large number of tiny pores and fiber protrusions. During the high pressure filtration process, the fine particles of sludge are embedded in the pores to form a mechanical interlocking structure. Some filter cakes are still attached to the surface of the filter cloth and need to be cleaned a second time.

[0039] In this invention, the operator restarts the drive motor 132 and controls it to rotate in the opposite direction, driving the drive gear 133 to mesh with the driven gear 134, which in turn drives the drive shaft 36 to rotate in the opposite direction at a constant speed along its central axis. During this process, the pawl 361 and the ratchet 313 are disengaged from the one-way meshing state, and the separating block 33 is kept stationary by the attraction and limitation of the magnetic component 131. Therefore, only the drive shaft 36 rotates independently in the opposite circumferential direction.

[0040] When the drive shaft 36 rotates in the reverse direction, the cam 362 mounted on its outer circumference rotates synchronously with it. The flange of the cam 362 forms an intermittent contact with the bottom arc surface of the abutment plate 332. When the flange of the cam 362 contacts the bottom of the abutment plate 332, the resulting contact squeezing force overcomes the elastic threshold of the compression spring 333, pushing the abutment plate 332 to slide directionally along the guide rail outside the separator block 33 towards the bottom of the ear plate 21. The top arc surface of the abutment plate 332 contacts the bottom of the ear plate 21 and pushes upward, causing the ear plate 21 and the filter plate 2 to move slightly upward in the vertical direction. When the flange of cam 362 disengages from the bottom of abutment plate 332, abutment plate 332 returns to its initial position along the guide rail under the elastic restoring force of compression spring 333. Filter plate 2 falls back to its initial position along with ear plate 21. Cam 362 continues to rotate in the opposite direction with drive shaft 36, realizing the reciprocating sliding of abutment plate 332, which in turn drives filter plate 2 to perform high-frequency reciprocating vertical vibration on crossbeam 13. The inertial force generated by the vibration breaks the mechanical interlocking structure between filter cake and filter cloth, forcing the adhered filter cake to detach from the filter cloth and fall to the collection mechanism, thus completing the thorough cleaning of filter plate 2.

[0041] When the separation block 33 rotates to the vertical position, the magnetic component 131 on the outside of the crossbeam 13 is energized to generate magnetic attraction force, which adsorbs and limits the separation block 33. The drive shaft 36 rotates in the opposite direction, driving the cam 362 to rotate continuously. The flange of the cam 362 intermittently contacts the abutment plate 332, pushing the abutment plate 332 to push the ear plate 21 back and forth, causing the filter plate 2 to perform high-frequency reciprocating vertical vibration. The inertial force generated by the vibration directly destroys the mechanical interlocking structure between the filter cake and the filter cloth, forcing the fine sludge particles embedded in the pores of the filter cloth to fall off, thus achieving thorough cleaning of the surface of the filter plate 2.

[0042] The abutment plate 332 is mounted on the separation block 33 in a single-sided assembly manner, so that the number of separation blocks 33 corresponds one-to-one with the number of ear plates 21. The last-stage separation block 33 does not form an insert fit with the adjacent ear plate 21; it only serves as a vibration actuator for the last ear plate 21. The thickness of the abutment plate 332 is greater than the effective extension stroke of the inner support rod 353, which ensures that after the inner support rod 353 completes the separation action of the filter plate 2, the abutment plate 332 can still achieve a stable and effective contact fit with the ear plate 21. At the same time, throughout the entire process of the rotational movement of the abutment plate 332 with the separation block 33, a preset movement gap is always maintained between the abutment plate 332 and the ear plate 21, effectively avoiding the problem of motion interference caused by mechanical contact between the two.

[0043] After the sludge removal process is completed, the magnetic component 131 is de-energized to release the adsorption limit on the separation block 33, and the drive motor 132 rotates forward again. With the help of the meshing transmission between the pawl 361 and the ratchet 313, the separation block 33 is reset to the initial horizontal position. The equipment completes the entire separation and sludge removal process and then enters the next round of industrial wastewater filtration and circulation.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An industrial wastewater treatment equipment with an integrated plate and frame dredging structure, comprising a frame (1), characterized in that, The frame (1) is provided with a filter plate (2) for dewatering sewage by pressure filtration. The frame (1) includes a thrust plate (11) and a pressing seat (12). The thrust plate (11) and the pressing seat (12) are fixedly connected by a crossbeam (13). The thrust plate (11), the pressing seat (12) and the crossbeam (13) together form an assembly cavity for assembling the filter plate (2). The filter plate (2) has multiple plates arranged in an array along the center surface of the crossbeam (13). The outer side of the filter plate (2) is equipped with an ear plate (21), and the ear plate (21) is fitted to the top of the crossbeam (13) to achieve sliding guidance of the filter plate (2). The outer side of the crossbeam (13) is equipped with a separation component (3) for separating the filter plate (2). The separation component (3) includes a rotating shaft (31). The rotating shaft (31) is fixed to the outer side of the crossbeam (13) by a bearing seat (32) provided on its circumferential outer surface. The circumferential outer surface of the rotating shaft (31) is equipped with a separation block (33), and multiple separation blocks (33) are provided and arranged in an array along the central axis of the rotating shaft (31). The frame (1) is provided with a pusher for driving the filter plate (2) to move. After the pusher presses the filter plate (2) with a preset pressure, a filter cavity for industrial wastewater pressure filtration is formed between adjacent filter plates (2).

2. The industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 1, characterized in that: The pusher includes a pressing plate (14) mounted on the crossbeam (13). The pressing seat (12) is equipped with an oil cylinder (15) connected to the pressing plate (14). The pressing plate (14) is moved along the length of the crossbeam (13) by the extension and retraction of the oil cylinder (15), thereby realizing the pressing and loosening of the filter plate (2).

3. The industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 1, characterized in that: The separating block (33) near the ear plate (21) adopts an inclined guide slope structure design. A magnetic component (131) is fixedly connected to the outside of the crossbeam (13), and the magnetic component (131) is magnetically connected to the separating block (33). The separating block (33) is equipped with an internal support mechanism (35) through a cavity (34) set inside it.

4. The industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 3, characterized in that: The inner support mechanism (35) includes a counterweight (351) slidably connected in the cavity (34), and the counterweight (351) is connected to the inner wall of the cavity (34) by a return spring (352) disposed on its outer side. The outer side of the counterweight (351) is designed with a slope.

5. The industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 4, characterized in that: The cavity (34) is slidably connected to an inner support rod (353) that fits against the inclined surface of the counterweight (351) through a mounting hole provided inside it. There are two inner support rods (353) and they are staggered in the cavity (34). The inner support rod (353) is connected to the inner wall of the cavity (34) through an elastic frame (354) provided inside it.

6. The industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 1, characterized in that: The rotating shaft (31) is fitted with a drive shaft (36) through a through hole (311) provided inside it. The outer diameter of the drive shaft (36) is smaller than the inner diameter of the through hole (311), and the central axis of the drive shaft (36) is collinear with the central axis of the through hole (311). The outer circumferential surface of the rotating shaft (31) is provided with a slot (312) that communicates with the through hole (311). The outer side of the separating block (33) is provided with a slot (331) that communicates with the slot (312). The separating block (33) is slidably connected to an abutment plate (332) extending to the through hole (311) by a guide rail provided on its outer side. The abutment plate (332) is connected to the inner wall of the slot (331) by a compression spring (333) provided on its outer side.

7. An industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 6, characterized in that: The end of the rotating shaft (31) is fixedly connected to a ratchet (313), and the ratchet (313) has two ratchets that are symmetrically distributed along the central plane of the rotating shaft (31). The outer circumferential surface of the drive shaft (36) is fitted with a pawl (361) that meshes with the ratchet (313). The outer circumferential surface of the drive shaft (36) is fixedly connected to a cam (362) that fits against the outer side of the abutment plate (332).

8. The industrial wastewater treatment equipment with an integrated plate and frame dredging structure according to claim 7, characterized in that: The crossbeam (13) is equipped with a rotary mechanism for driving the drive shaft (36) to rotate; The rotary mechanism includes a drive motor (132) fixedly installed in the crossbeam (13), and the output end of the drive motor (132) is fixedly connected to a drive gear (133). The drive shaft (36) is fixedly connected to a driven gear (134) that meshes with the drive gear (133) at one end near the drive motor (132).

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