A multi-stage pressure filtration treatment device for municipal pile foundation construction mud and its application method

Abstract

This invention relates to the field of slurry filtration technology for pile foundation construction, and discloses a multi-stage filtration treatment device and method for municipal pile foundation construction slurry. The device includes a base plate, with a sewage tank and a clean water tank fixedly connected to the top of the base plate. It also includes a water supply component, comprising a sedimentation tank with a discharge device installed at the bottom. The bottom of the discharge device is connected to a sludge tank, and a booster pump is connected to the surface of the sludge tank. A support plate is fixedly connected to the bottom of the sludge tank. The filter press frames of this invention are arranged in groups of three, linked by a triangular frame. A moving trolley, electric push rod, and clamping bracket with pulling blocks allow for the dragging of individual filter press frames. The triangular frame hinge structure automatically opens each group of filter plates, and the sludge cake between the filter cloths falls off by its own weight. This eliminates the traditional manual disassembly and unloading method of filter presses, significantly reducing labor intensity and improving the overall efficiency of slurry treatment.

Description

Technical Field

[0001] This invention relates to the field of mud filtration technology for pile foundation construction, specifically to a multi-stage mud filtration treatment device and its usage method for municipal pile foundation construction. Background Technology

[0002] During the drilling construction of municipal bridges, buildings, and pipeline pile foundations, a large amount of wall-protecting mud will be continuously generated. The mud is mixed with clay, fine sand, drilling cuttings, and construction wastewater. It has a high solid content and high viscosity. If it is discharged directly and arbitrarily, it will block municipal pipelines and pollute the soil and surface water. Traditional direct discharge and simple drying treatment methods occupy a large area and have poor volume reduction effect. It is necessary to adopt the pressure filtration and dewatering process to achieve solid-liquid separation of mud. The separated clean water is recycled and reused, and the dry mud cake is transported off-site for compliant disposal. Traditional pile foundation slurry filter press equipment relies on manual operation for filter cloth cleaning. After the filtration operation, a large amount of slurry clumps will solidify inside the filter cloth pores. Relying solely on manual high-pressure water gun washing and scraping with a scraper is slow and difficult to completely remove the sludge in dead corners. Long-term residual sludge will also continuously reduce the water permeability of the filter cloth and shorten its service life. Before cleaning, each filter plate needs to be disassembled and separated manually, and after cleaning, it needs to be manually reassembled. The disassembly and assembly process is cumbersome and affects the efficiency of slurry treatment. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-stage pressure filtration treatment device and method for municipal pile foundation construction mud, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a multi-stage pressure filtration treatment device and method for municipal pile foundation construction mud, comprising a base plate, a sewage tank fixedly connected to the top of the base plate, a clean water tank fixedly connected to the top of the base plate, and further comprising: A water supply component, comprising a sedimentation tank, a discharge device installed at the bottom of the sedimentation tank, a sludge tank connected to the bottom of the discharge device, a booster pump connected to the surface of the sludge tank, and a support plate fixedly connected to the bottom of the sludge tank. A filter press component, comprising a filter press frame, the bottom of which is fixedly connected to the top of a support plate, a sliding groove being provided on the top of the filter press frame, and a cylinder being fixedly connected to the end of the filter press frame; A cleaning component, comprising a cleaning plate, wherein bristles are fixedly connected to the surface of the cleaning plate, and a lifting plate is fixedly connected to the top of the cleaning plate; A separating component, the separating component including an inclined plate, both ends of which are fixedly connected to baffles.

[0005] Furthermore, the bottom of the support plate is fixedly connected to the top of the sewage tank and the clean water tank respectively, the upper surface of the sedimentation tank is connected to an overflow pipe, the sedimentation tank is located above the sewage tank, and the end of the booster pump away from the sludge tank is connected to the end of the filter press frame.

[0006] Furthermore, the water supply component includes a support frame, the bottom of which is fixedly connected to the top of the support plate, the inner wall of which is fixedly connected to the lower surface of the sedimentation tank, a lift pump fixedly connected to the top of the support plate, the inlet end of which extends into the interior of the sewage tank, the outlet end of which communicates with the top of the sedimentation tank, a dosing device installed on the top of the support plate, the output end of which communicates with the outlet end of the lift pump, a discharge hole and a groove on the top of the support plate, and a collection rack fixedly connected to the top of the bottom plate, the end of which communicates with the sewage tank.

[0007] Furthermore, the bottom of the booster pump is fixedly connected to the top of the support plate, and there are two grooves and two collection racks respectively. The two grooves and collection racks are symmetrically arranged with the support plate as the center. The collection rack is located below the support plate. The bottom of the sludge tank is fixedly connected to the top of the support plate. The end of the overflow pipe away from the sedimentation tank extends into the interior of the groove. The bottom of the sedimentation tank is conical.

[0008] Furthermore, the filter press component includes a slider, the surface of which is slidably connected to the inner wall of the chute. A through-hole frame is fixedly connected to the top of the slider, a triangular frame is fitted onto the upper surface of the through-hole frame, a pull block is fixedly connected to the surface of the through-hole frame, a slide rail is fixedly connected to the top of the filter press frame, a moving trolley is slidably connected to the surface of the slide rail, a right-angle frame is fixedly connected to the top of the moving trolley, an electric push rod is fixedly connected to the top of the inner wall of the right-angle frame, a clamp is fixedly connected to the bottom of the electric push rod, a filter press frame is detachably installed at the end of the through-hole frame via a screw, a perforated plate is fixedly connected to the inner wall of the filter press frame, two filter cloths are fixedly connected to the inner wall of the filter press frame, a round tube is fixedly connected to the center of the perforated plate, a filter press plate is fixedly connected to the telescopic end of the cylinder, a water outlet pipe is connected to the surface of the filter press frame, and a vertical pipe is connected to the end of the water outlet pipe away from the filter press frame.

[0009] Furthermore, the two filter cloths are symmetrically arranged around the perforated plate, the inner wall of the filter cloth is fixedly connected to the surface of the circular tube, the end of the circular tube extends to the outer end of the filter cloth, and both ends of the circular tube are located inside the filter press frame. The surface of the pull block is adapted to the inner wall of the bracket, the vertical tube is located above the groove, and the telescopic end of the cylinder extends into the interior of the filter press frame. The filter press frames are provided in multiple groups, and each group has three filter press frames. The three filter press frames are connected to two triangular frames through through holes on their surfaces. The center of the triangular frames is hinged. There are two slide rails, which are symmetrically arranged with the filter press frames as the center. The upper and lower ends of the filter press frames extend to the outer ends of the filter press frame.

[0010] Furthermore, the cleaning component includes a positioning track, the end of which is fixedly connected to the surface of the filter press frame. An electric frame is slidably connected to the surface of the positioning track. A rectangular frame is fixedly connected to the top of the electric frame. An electric telescopic rod is fixedly connected to the top of the inner wall of the rectangular frame. A bidirectional telescopic frame is fixedly connected to the top of the electric telescopic rod. The end of the bidirectional telescopic frame is fixedly connected to the surface of the lifting plate. A rectangular hose is connected to the end of the cleaning plate. A transmission hose is connected to the center of the rectangular hose. A transmission pump is connected to the end of the transmission hose away from the rectangular hose. The inlet end of the transmission pump extends into the interior of the water purification tank.

[0011] Furthermore, the top of the rectangular frame extends above the filter press frame, the top telescopic end of the electric telescopic rod passes through the rectangular frame and extends above the rectangular frame, and there are two cleaning plates, which are symmetrically arranged with the bidirectional telescopic frame as the center.

[0012] Furthermore, the separating component includes a fixing block, the end of which is fixedly connected to the end of the filter press frame, and an electric rod is fixedly connected to the bottom of the fixing block, the telescopic end of which is fixedly connected to the bottom of the inclined plate. The inclined plates are provided in two shapes, arranged in a triangle, with the ends of the two inclined plates extending into the interior of the collection rack, and the inclined plates located below the filter press frame.

[0013] Furthermore, a method for using a multi-stage pressure filtration treatment device for municipal pile foundation construction mud includes the following steps: S1: A three-stage pretreatment system is set up, consisting of a sewage tank for storage, a chemical dosing device for flocculation, and a sedimentation tank for stratified sedimentation. When the pump pumps the pile foundation mud into the sedimentation tank, the chemical dosing device simultaneously adds flocculant. Fine soil particles in the mud clump together and settle. The conical bottom of the sedimentation tank facilitates the concentration and aggregation of sludge. The supernatant is discharged into the groove through the overflow pipe and flows into the clean water tank in advance, separating most of the clean water in advance and reducing the pressure filter cycle time. S2: The filter press frames are in groups of three and are linked by a triangular frame. The moving trolley, electric push rod, and clamping bracket can drag the filter press frames one by one. The triangular frame hinge structure automatically opens each group of filter plates. The mud cake between the filter cloths falls off by its own weight. This eliminates the traditional manual disassembly and unloading mode of filter presses, greatly reducing the intensity of manual labor and improving the overall efficiency of mud treatment. S3: The positioning track is equipped with a movable electric frame. Two cleaning plates with brushes are symmetrically arranged on the bidirectional telescopic frame. The cleaning plates can be raised, lowered, and moved laterally to brush both sides of the filter cloth simultaneously. The transfer pump draws clean water from the water tank and sprays it out from the cleaning plates through the transfer hose and rectangular hose. Brushing and rinsing are carried out simultaneously to thoroughly remove the solidified dirt in the pores of the filter cloth. S4: Two sets of triangular inclined plates are installed below the filter press frame. Baffles are set at both ends of the inclined plates. The electric rod at the bottom of the fixed block controls the opening and closing of the inclined plates. During the cleaning operation, the inclined plates close to form a guide slope. During the unloading operation, the inclined plates retract into the collection rack and open the unloading hole at the top of the bearing plate.

[0014] The present invention has the following beneficial effects: This invention features a three-stage pretreatment system: wastewater storage in a wastewater tank, chemical flocculant addition, and stratified sedimentation in a conical sedimentation tank. While the pump draws the pile foundation slurry into the sedimentation tank, a flocculant is simultaneously added via a chemical dosing device. Fine soil particles in the slurry clump together and settle. The conical tank bottom facilitates sludge aggregation. The supernatant overflows through a drain pipe into a groove that flows into a clean water tank, separating most of the clean water in advance and reducing the filter press cycle time. The sedimentation tank is equipped with a discharge device and a sludge tank at the bottom, allowing the concentrated sediment to be discharged in batches into the sludge tank for buffering, eliminating the need for simultaneous sedimentation and filter press. Overflow clean water is separately diverted for recycling, enabling separate temporary storage of sludge and clean water. This allows for continuous feeding of pile foundation construction slurry and improves filter press efficiency.

[0015] This invention uses three filter press frames as a group, linked by a triangular frame. A moving trolley, electric push rod, and clamping bracket with pull block can drag the filter press frames one by one. The triangular frame hinge structure automatically opens each group of filter plates, and the mud cake between the filter cloths falls off by its own weight. This eliminates the traditional manual disassembly and unloading mode of filter presses, significantly reducing labor intensity and improving the overall efficiency of mud treatment. Inside each filter press frame, double layers of filter cloth are symmetrically arranged with a perforated plate as the center. After the booster pump delivers mud into the filter frame cavity, water penetrates the two layers of filter cloth and the perforated plate, collected by the central circular pipe, and discharged through the outlet pipe and vertical pipe. The perforated plate supports the filter cloth, making it less prone to deformation and damage under high pressure, thus improving the pressure resistance of the equipment. During operation, the cylinder pushes the filter plates to tightly press all the filter press frames together, ensuring a seamless fit and preventing high-pressure mud leakage. After filtration, the moving trolley on the slide rail can separate the filter frames one by one. The pressing, separating, and unloading are automated and require no manual operation.

[0016] This invention features a positioning track equipped with a movable electric frame. Two cleaning plates with brush bristles are symmetrically arranged on the bidirectional telescopic frame. The cleaning plates can be raised, lowered, and moved laterally, simultaneously brushing both sides of the filter cloth. A transfer pump draws clean water from the purification tank and sprays it out from the cleaning plates through hoses. Brushing and rinsing are performed simultaneously to thoroughly remove solidified dirt from the pores of the filter cloth. This solves the problem of decreased water permeability and poor dewatering effect of filter cloth after long-term use in traditional equipment. The bidirectional telescopic frame can control the two cleaning plates to retract and separate. After cleaning, the cleaning plates retract to both sides away from the filter cloth. When the equipment switches to the unloading process, the cleaning components will not scratch or drag the filter press frame, and there is no need to disassemble the cleaning mechanism.

[0017] This invention features two sets of triangular inclined plates installed below the filter press frame, with baffles at both ends. The plates are opened and closed by an electric lever. During cleaning operations, the inclined plates close to form a guiding slope. During unloading operations, the inclined plates retract into the collection rack, opening the unloading hole at the top of the support plate. The collection rack is symmetrically arranged below the support plate, allowing wastewater to flow back to the sewage tank. The electric opening and closing of the inclined plates automatically switches between the two operating conditions, separating and collecting cleaning wastewater and dry mud cake. In the closed state, the rinsing mud water flows along the inclined plates into the collection rack for circulation. In the open state, the mud cake falls directly from the unloading hole for transport. The baffles on both sides prevent mud leakage, keeping the construction site clean and simultaneously enabling mud cake transport and wastewater recovery, thus improving filter press efficiency.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the water purification tank structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the water supply component of the present invention; Figure 4 This is another structural schematic diagram of the water supply component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the filter press component of the present invention; Figure 6 This is another structural schematic diagram of the filter press component of the present invention; Figure 7 For the present invention Figure 5 Enlarged diagram of part A in the diagram; Figure 8This is a schematic cross-sectional view of the filter cloth structure of the present invention; Figure 9 This is a schematic diagram of the overall structure of the cleaning component of the present invention; Figure 10 This is another structural schematic diagram of the cleaning component of the present invention; Figure 11 This is a schematic diagram of the overall structure of the separating component of the present invention; Figure 12 This is a schematic diagram of the process structure of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base plate; 2. Sewage tank; 3. Clean water tank; 4. Overflow pipe; 5. Water supply components; 6. Filter press components; 7. Cleaning components; 8. Separation components; 10. Sedimentation tank; 11. Dosing device; 12. Booster pump; 13. Support frame; 14. Booster pump; 15. Discharge device; 16. Collection rack; 17. Support plate; 18. Groove; 19. Discharge hole; 20. Sludge tank; 30. Filter press frame; 31. Cylinder; 32. Filter press plate; 33. Outlet pipe; 34. Vertical pipe; 35. Slide rail; 36. Filter cloth; 37. Filter press frame; 38. Through-hole frame; 39. Triangular frame; 40. Moving trolley; 41. Electric actuator; 42. Right-angle frame; 43. Clip holder; 44. Round tube; 45. Pull block; 46. Slider; 47. Round perforated plate; 50. Positioning rail; 51. Electric frame; 52. Rectangular frame; 53. Lifting plate; 54. Two-way telescopic frame; 55. Brush bristles; 56. Electric telescopic rod; 57. Cleaning plate; 58. Rectangular hose; 59. Transfer pump; 60. Transfer hose; 70. Inclined plate; 71. Baffle; 72. Fixing block; 73. Electric rod. Detailed Implementation

[0022] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-12 As shown, this invention relates to a multi-stage pressure filtration treatment device and method for municipal pile foundation construction mud, comprising a base plate 1, a sewage tank 2 fixedly connected to the top of the base plate 1, a clean water tank 3 fixedly connected to the top of the base plate 1, and further comprising: Water supply component 5 includes a sedimentation tank 10, a discharge device 15 is installed at the bottom of the sedimentation tank 10, a sludge tank 20 is connected to the bottom of the discharge device 15, a booster pump 14 is connected to the surface of the sludge tank 20, and a support plate 17 is fixedly connected to the bottom of the sludge tank 20. The filter press component 6 includes a filter press frame 30. The bottom of the filter press frame 30 is fixedly connected to the top of the support plate 17. A sliding groove is provided on the top of the filter press frame 30. A cylinder 31 is fixedly connected to the end of the filter press frame 30. Cleaning component 7 includes a cleaning plate 57, with bristles 55 fixedly connected to the surface of the cleaning plate 57 and a lifting plate 53 fixedly connected to the top of the cleaning plate 57. The separation component 8 includes an inclined plate 70, and baffles 71 are fixedly connected to both ends of the inclined plate 70.

[0024] The bottom of the support plate 17 is fixedly connected to the top of the sewage tank 2 and the clean water tank 3 respectively. The upper surface of the sedimentation tank 10 is connected to the overflow pipe 4. The sedimentation tank 10 is located above the sewage tank 2. The end of the booster pump 14 away from the sludge tank 20 is connected to the end of the filter press 30.

[0025] The water supply component 5 includes a bracket 13, the bottom of which is fixedly connected to the top of a support plate 17. The inner wall of the bracket 13 is fixedly connected to the lower surface of the sedimentation tank 10. A lift pump 12 is fixedly connected to the top of the support plate 17. The inlet end of the lift pump 12 extends into the interior of the sewage tank 2, and the outlet end of the lift pump 12 communicates with the top of the sedimentation tank 10. A dosing device 11 is installed on the top of the support plate 17, and the output end of the dosing device 11 communicates with the outlet end of the lift pump 12. A discharge hole 19 is provided on the top of the support plate 17. A groove 18 is provided at the top, and a collection rack 16 is fixedly connected to the top of the bottom plate 1. The end of the collection rack 16 is connected to the sewage tank 2. The sewage tank 2 is equipped with a three-stage pretreatment system: material storage, dosing device 11 for flocculation, and sedimentation tank 10 for stratified sedimentation. When the lifting pump 12 pumps the pile foundation mud into the sedimentation tank 10, the dosing device 11 simultaneously adds flocculant. The fine soil particles in the mud clump together and settle. The conical bottom of the sedimentation tank 10 facilitates the concentration and aggregation of sludge. The supernatant is discharged into the groove 18 through the overflow pipe 4 and flows into the clean water tank 3, separating most of the clean water in advance and reducing the pressure filtration cycle time.

[0026] The bottom of the booster pump 14 is fixedly connected to the top of the support plate 17. There are two grooves 18 and two collection racks 16 respectively. The two grooves 18 and the collection racks 16 are symmetrically arranged with the support plate 17 as the center. The collection racks 16 are located below the support plate 17. The bottom of the sludge tank 20 is fixedly connected to the top of the support plate 17. The end of the overflow pipe 4 away from the sedimentation tank 10 extends into the interior of the groove 18. The bottom of the sedimentation tank 10 is conical.

[0027] The filter press component 6 includes a slider 46, the surface of which is slidably connected to the inner wall of the chute. A through-hole frame 38 is fixedly connected to the top of the slider 46. A triangular frame 39 is fitted onto the upper surface of the through-hole frame 38. A pull block 45 is fixedly connected to the surface of the through-hole frame 38. A slide rail 35 is fixedly connected to the top of the filter press frame 30. A moving trolley 40 is slidably connected to the surface of the slide rail 35. A right-angle frame 42 is fixedly connected to the top of the moving trolley 40. An electric push rod 41 is fixedly connected to the top of the inner wall of the right-angle frame 42. A clamping bracket 43 is fixedly connected to the bottom of the electric push rod 41. A filter press frame 37 is detachably installed at the end of the through-hole frame 38 via a screw. A perforated plate 47 is fixedly connected to the inner wall of the filter press frame 37. Two filter cloths 36 are fixedly connected to the inner wall of the filter press frame 37. A round tube 44 is fixedly connected to the center of the perforated plate 47. A filter press plate 32 is fixedly connected to the telescopic end of the cylinder 31. The surface of the filter press frame 37 is connected to... There is a water outlet pipe 33, and the end of the water outlet pipe 33 away from the filter press frame 37 is connected to a vertical pipe 34. The filter press frames 37 are in groups of three and are linked by a tripod 39. The moving trolley 40, together with the electric push rod 41 and the clamp 43 and the pull block 45, can drag the filter press frames 37 one by one. The hinge structure of the tripod 39 automatically opens each group of filter plates. The mud cake between the filter cloths 36 falls off by its own weight. This eliminates the traditional manual disassembly and unloading mode of filter presses, greatly reducing the intensity of manual labor and improving the overall efficiency of mud treatment. Inside each filter press frame 37, double layers of filter cloth 36 are symmetrically arranged with a perforated plate 47 as the center. After the booster pump 14 delivers mud into the cavity of the filter press frame 37, the water penetrates the two layers of filter cloth 36 and the perforated plate 47 and is collected by the central round pipe 44. It is then discharged through the water outlet pipe 33 and the vertical pipe 34. The perforated plate 47 supports the filter cloth 36. Under high pressure, the filter cloth 36 is not easily deformed or damaged, which improves the pressure resistance of the equipment.

[0028] Two filter cloths 36 are symmetrically arranged with the perforated plate 47 as the center. The inner wall of the filter cloth 36 is fixedly connected to the surface of the round tube 44. The end of the round tube 44 extends to the outer end of the filter cloth 36, and both ends of the round tube 44 are located inside the filter press frame 37. The surface of the pull block 45 is adapted to the inner wall of the bracket 43. The vertical tube 34 is located above the groove 18. The telescopic end of the cylinder 31 extends into the interior of the filter press frame 30. There are multiple filter press frames 37, and multiple groups of filter press frames 37 are provided. Each group of filter press frames 37 has three filter press frames 37. The three filter press frames 37 are connected to two triangular frames 39 through the through hole frame 38 on the surface. The center of the triangular frames 39 is hinged. There are two slide rails 35. The two slide rails 35 are symmetrically arranged with the filter press frames 37 as the center. The upper and lower ends of the filter press frames 37 extend to the outer end of the filter press frame 30.

[0029] The cleaning component 7 includes a positioning rail 50, the end of which is fixedly connected to the surface of the filter press frame 30. An electric frame 51 is slidably connected to the surface of the positioning rail 50. A rectangular frame 52 is fixedly connected to the top of the electric frame 51. An electric telescopic rod 56 is fixedly connected to the top of the inner wall of the rectangular frame 52. A bidirectional telescopic frame 54 is fixedly connected to the top of the electric telescopic rod 56. The end of the bidirectional telescopic frame 54 is fixedly connected to the surface of the lifting plate 53. A rectangular hose 58 is connected to the end of the cleaning plate 57. A transmission hose 60 is connected to the center of the rectangular hose 58. The transmission hose 60 is located away from the rectangular hose. One end of 58 is connected to a transfer pump 59, and the inlet end of the transfer pump 59 extends into the interior of the water purification tank 3. The positioning rail 50 is equipped with a movable electric frame 51. Two cleaning plates 57 with bristles 55 are symmetrically arranged on the bidirectional telescopic frame 54. The cleaning plates 57 can be raised, lowered, and moved laterally to brush both sides of the filter cloth 36 simultaneously. The transfer pump 59 draws clean water from the water purification tank 3 and sprays it out from the cleaning plates 57 through the transfer hose 60 and the rectangular hose 58. Brushing and rinsing are carried out simultaneously to thoroughly remove the solidified dirt in the pores of the filter cloth 36, solving the problem of decreased water permeability and poor dewatering effect of the filter cloth 36 after long-term use in traditional equipment.

[0030] The top of the rectangular frame 52 extends above the filter press frame 30. The top telescopic end of the electric telescopic rod 56 passes through the rectangular frame 52 and extends above the rectangular frame 52. There are two cleaning plates 57, which are symmetrically arranged with the bidirectional telescopic frame 54 as the center.

[0031] The separation component 8 includes a fixing block 72, the end of which is fixedly connected to the end of the filter press frame 30. An electric rod 73 is fixedly connected to the bottom of the fixing block 72. The telescopic end of the electric rod 73 is fixedly connected to the bottom of the inclined plate 70. Two sets of triangular inclined plates 70 are installed below the filter press frame 37. Baffles 71 are provided at both ends of the inclined plates 70. The electric rod 73 at the bottom of the fixing block 72 controls the opening and closing of the inclined plates 70. During the cleaning operation, the inclined plates 70 close to form a guide slope. During the unloading operation, the inclined plates 70 retract into the collection rack 16, opening the unloading hole 19 at the top of the bearing plate 17. The collection rack 16 is symmetrically arranged below the bearing plate 17, and the wastewater flows back to the sewage tank 2. There are two inclined plates 70 arranged in a triangle. The ends of the two inclined plates 70 that are far apart from each other extend into the interior of the collection rack 16. The inclined plates 70 are located below the filter press frame 37.

[0032] A method for using a multi-stage pressure filtration treatment device for municipal pile foundation construction mud includes the following steps: S1: A three-stage pretreatment system is set up, consisting of a wastewater tank 2 for storage, a dosing device 11 for flocculation, and a sedimentation tank 10 for stratified sedimentation. When the pile foundation mud is pumped into the sedimentation tank 10 by the lift pump 12, the dosing device 11 simultaneously adds flocculant. Fine soil particles in the mud clump together and settle. The conical bottom of the sedimentation tank 10 facilitates the concentration and aggregation of sludge. The supernatant is discharged into the groove 18 through the overflow pipe 4 and flows into the water purification tank 3, separating most of the clean water in advance and reducing the pressure filtration cycle time. S2: The filter press frames 37 are in groups of three and are linked by the tripod 39. The moving trolley 40, together with the electric push rod 41 and the clamp 43 and the pull block 45, can drag the filter press frames 37 one by one. The hinged structure of the tripod 39 automatically opens each group of filter plates. The mud cake between the filter cloths 36 falls off by its own weight. This eliminates the traditional manual disassembly and unloading mode of filter presses, greatly reducing the intensity of manual labor and improving the overall efficiency of mud treatment. S3: The positioning track 50 is equipped with a movable electric frame 51 and a two-way telescopic frame 54. Two cleaning plates 57 with brush bristles 55 are symmetrically arranged. The cleaning plates 57 can be raised, lowered and moved laterally to brush both sides of the filter cloth 36 simultaneously. The transmission pump 59 draws clean water from the water tank 3 and sprays it out from the cleaning plates 57 through the transmission hose 60 and the rectangular hose 58. Brushing and rinsing are carried out simultaneously to thoroughly remove the solidified dirt in the pores of the filter cloth 36. S4: Two sets of triangular inclined plates 70 are installed below the filter press frame 37. Baffles 71 are provided at both ends of the inclined plates 70. The electric rod 73 at the bottom of the fixed block 72 controls the opening and closing of the inclined plates 70. During the cleaning operation, the inclined plates 70 close to form a guide slope. During the unloading operation, the inclined plates 70 retract into the collection rack 16 and open the unloading hole 19 at the top of the bearing plate 17.

[0033] During use, after the sewage from the municipal pile foundation construction is discharged into the sewage tank 2, the lift pump 12 is started to start operation. The lift pump 12 will transfer the sewage sludge in the sewage tank 2 to the sedimentation tank 10 for sedimentation treatment. After the sludge enters the sedimentation tank 10, it will gradually settle at the bottom of the sedimentation tank 10. The sewage after sedimentation will flow into the groove 18 through the overflow pipe 4 and finally be discharged into the water purification tank 3 through the groove 18 to complete the purification. When the lift pump 12 transfers the sewage into the sedimentation tank 10, the dosing device 11 will add flocculant into the sewage and pump the sewage and flocculant into the sedimentation tank 10 together so that the sewage can be better treated for sedimentation. The discharge device 15 is started to discharge the sludge into the sludge tank 20. The booster pump 14 is started to start operation. The booster pump 14 is used to transfer the sludge to the filter press 30 for filter pressing treatment to purify the sewage remaining in the sludge. When the booster pump 14 is not in operation, the starting cylinder 31 pushes the filter press plate 32 to move. As the filter press plate 32 moves, it pushes the filter press frame 37 towards the inner wall of the filter press frame 30. Once the filter press frame 37 contacts the inner wall of the filter press frame 30, the filter press plate 32 continues to operate until multiple filter press frames 37 are tightly fitted together. At this point, the booster pump 14 starts operating, transferring sludge into the close-to-each cavities of the filter press frames 37. As the sludge increases, the wastewater in the sludge is filtered through the filter cloth 36 and enters the filter press frame 37. The clean water is then transferred to the vertical pipe 34 via the outlet pipe 33 and discharged into the groove 18 through the vertical pipe 34. The clean water in the groove 18 flows into the interior of the clean water tank 3 for storage. After filtration is complete, the starting cylinder 31 pulls the filter press plate 32 away from the filter press frame 37. At this point, the moving trolley 40 starts operating, pulling the clamp 43 and the pull... After block 45 is aligned, the electric actuator 41 is activated to push the card holder 43 downward to contact the pull block 45. At this time, the moving trolley 40 will pull the single set of filter press frames 37 through the pull block 45. When the single set of filter press frames 37 moves, they will move away from each other through the expansion of the tripod 39, so that the single set of filter press frames 37 will separate. At this time, the sludge on the surface of the filter cloth 36 will fall down by gravity. The sludge will fall directly to the top of the bottom plate 1. Alternatively, a conveyor belt can be installed on the top of the bottom plate 1, and the sludge can fall directly onto the conveyor belt for easy transport. The moving trolley 40 can pull the single set of filter press frames 37 to improve the sludge feeding efficiency. The moving trolley 40 repeats the above steps to pull the subsequent filter press frames 37 to move so that the sludge after pressing can be quickly removed. When the filter press frame 37 needs to be replaced, the tripod 39 and the through hole frame 38 can be separated, and the filter press frame 37 can be taken out from the inside of the filter press frame 30. When cleaning the filter press frame 37 is required, first separate the filter press frame 37 using the moving trolley 40. Then, start the electric frame 51 to move on the surface of the positioning track 50. As the electric frame 51 moves, it pulls the rectangular frame 52. Once the rectangular frame 52 aligns with the filter press frame 37, start the electric telescopic rod 56 to pull the bidirectional telescopic frame 54 downwards. As the bidirectional telescopic frame 54 moves downwards, it pushes the cleaning plate 57 to the surface of the filter press frame 37. At this point, the cleaning plate 57 can push the bristles 55 to clean the surface of the filter cloth 36, preventing sludge from accumulating on the surface of the filter cloth 36 and affecting wastewater treatment. The permeability of the water allows the transfer pump 59 to be started simultaneously with the cleaning process. The transfer pump 59 transfers clean water to the cleaning plate 57 through the transfer hose 60 and the rectangular hose 58. The cleaning plate 57 sprays clean water onto the surface of the filter cloth 36 through the bristles 55, using the clean water to wet the solidified sludge and improve the cleaning effect. When the cleaning plate 57 needs to move upward, the bidirectional telescopic frame 54 is activated to push the two cleaning plates 57 to move away from each other until the bristles 55 separate from the filter cloth 36. This prevents the filter press frame 37 from being pulled away when the cleaning plate 57 is reset, which would cause the filter press frame 37 to separate from the filter press frame 30. When cleaning the filter cloth 36, the inclined plate 70 is in a closed state. At this time, the cleaned sludge and wastewater will flow into the collection rack 16 through the inclined plate 70. The collection rack 16 is connected to the sewage tank 2, so as to perform pressure filtration treatment on the cleaned sludge and sewage. When the sludge on the surface of the filter cloth 36 is unloaded, the electric rod 73 is activated to push the two inclined plates 70 to move away from each other. At this time, the inclined plates 70 will retract into the collection rack 16, and the sludge on the surface of the filter cloth 36 will be discharged to the top of the bottom plate 1 through the discharge hole 19.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-stage pressure filtration treatment device for municipal pile foundation construction mud, comprising a base plate (1), wherein a sewage tank (2) is fixedly connected to the top of the base plate (1), and a clean water tank (3) is fixedly connected to the top of the base plate (1), characterized in that, Also includes: Water supply component (5), the water supply component (5) includes a sedimentation tank (10), a discharge device (15) is installed at the bottom of the sedimentation tank (10), the bottom of the discharge device (15) is connected to a sludge tank (20), the surface of the sludge tank (20) is connected to a booster pump (14), and a support plate (17) is fixedly connected to the bottom of the sludge tank (20). The filter press component (6) includes a filter press frame (30), the bottom of which is fixedly connected to the top of the support plate (17), a sliding groove is provided on the top of the filter press frame (30), and a cylinder (31) is fixedly connected to the end of the filter press frame (30). The cleaning component (7) includes a cleaning plate (57), on the surface of which bristles (55) are fixedly connected, and on the top of which a lifting plate (53) is fixedly connected. The separation component (8) includes an inclined plate (70), and baffles (71) are fixedly connected to both ends of the inclined plate (70).

2. The multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 1, characterized in that: The bottom of the support plate (17) is fixedly connected to the top of the sewage tank (2) and the water purification tank (3) respectively. The upper surface of the sedimentation tank (10) is connected to the overflow pipe (4). The sedimentation tank (10) is located above the sewage tank (2). The end of the booster pump (14) away from the sludge tank (20) is connected to the end of the filter press (30).

3. The multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 2, characterized in that: The water supply component (5) includes a bracket (13), the bottom of which is fixedly connected to the top of the support plate (17), the inner wall of which is fixedly connected to the lower surface of the sedimentation tank (10), a lift pump (12) is fixedly connected to the top of the support plate (17), the inlet end of the lift pump (12) extends into the interior of the sewage tank (2), the outlet end of the lift pump (12) is connected to the top of the sedimentation tank (10), a dosing device (11) is installed on the top of the support plate (17), the output end of the dosing device (11) is connected to the outlet end of the lift pump (12), a discharge hole (19) is opened on the top of the support plate (17), a groove (18) is opened on the top of the support plate (17), a collection rack (16) is fixedly connected to the top of the bottom plate (1), and the end of the collection rack (16) is connected to the sewage tank (2).

4. The multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 3, characterized in that: The bottom of the booster pump (14) is fixedly connected to the top of the support plate (17). There are two grooves (18) and two collection racks (16). The two grooves (18) and two collection racks (16) are symmetrically arranged with the support plate (17) as the center. The collection rack (16) is located below the support plate (17). The bottom of the sludge tank (20) is fixedly connected to the top of the support plate (17). The overflow pipe (4) extends from the end away from the sedimentation tank (10) into the interior of the groove (18). The bottom of the sedimentation tank (10) is conical.

5. The multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 4, characterized in that: The filter press component (6) includes a slider (46), the surface of which is slidably connected to the inner wall of the chute. A through-hole frame (38) is fixedly connected to the top of the slider (46). A triangular frame (39) is sleeved on the upper surface of the through-hole frame (38). A pull block (45) is fixedly connected to the surface of the through-hole frame (38). A slide rail (35) is fixedly connected to the top of the filter press frame (30). A moving trolley (40) is slidably connected to the surface of the slide rail (35). A right-angle frame (42) is fixedly connected to the top of the moving trolley (40). An electric push rod (4) is fixedly connected to the top of the inner wall of the right-angle frame (42). 1) The bottom of the electric push rod (41) is fixedly connected to a bracket (43), and the end of the through hole bracket (38) is installed with a filter press frame (37) by means of a screw. The inner wall of the filter press frame (37) is fixedly connected to a perforated plate (47), and the inner wall of the filter press frame (37) is fixedly connected to two filter cloths (36). The center of the perforated plate (47) is fixedly connected to a round tube (44), and the telescopic end of the cylinder (31) is fixedly connected to a filter press plate (32). The surface of the filter press frame (37) is connected to a water outlet pipe (33), and the end of the water outlet pipe (33) away from the filter press frame (37) is connected to a vertical pipe (34).

6. The multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 5, characterized in that: Two filter cloths (36) are symmetrically arranged around the perforated plate (47). The inner wall of the filter cloth (36) is fixedly connected to the surface of the round tube (44). The end of the round tube (44) extends to the outer end of the filter cloth (36), and both ends of the round tube (44) are located inside the filter press frame (37). The surface of the pull block (45) is adapted to the inner wall of the bracket (43). The vertical tube (34) is located above the groove (18). The telescopic end of the cylinder (31) extends into the interior of the filter press frame (30).

7. A multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 6, characterized in that: The cleaning component (7) includes a positioning track (50), the end of which is fixedly connected to the surface of the filter press (30), an electric frame (51) is slidably connected to the surface of the positioning track (50), a rectangular frame (52) is fixedly connected to the top of the electric frame (51), an electric telescopic rod (56) is fixedly connected to the top of the inner wall of the rectangular frame (52), a bidirectional telescopic frame (54) is fixedly connected to the top of the electric telescopic rod (56), the end of the bidirectional telescopic frame (54) is fixedly connected to the surface of the lifting plate (53), the end of the cleaning plate (57) is connected to a rectangular hose (58), the center of the rectangular hose (58) is connected to a transmission hose (60), the end of the transmission hose (60) away from the rectangular hose (58) is connected to a transmission pump (59), and the water inlet end of the transmission pump (59) extends into the interior of the water purification tank (3).

8. A multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 7, characterized in that: The top of the rectangular frame (52) extends above the filter press (30), and the top telescopic end of the electric telescopic rod (56) passes through the rectangular frame (52) and extends above the rectangular frame (52). There are two cleaning plates (57), and the two cleaning plates (57) are symmetrically arranged with the bidirectional telescopic frame (54) as the center.

9. A multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 8, characterized in that: The separating component (8) includes a fixing block (72), the end of which is fixedly connected to the end of the filter press (30), and an electric rod (73) is fixedly connected to the bottom of the fixing block (72), the telescopic end of which is fixedly connected to the bottom of the inclined plate (70). There are two inclined plates (70), which are arranged in a triangle. The ends of the two inclined plates (70) that are far apart from each other extend into the interior of the collection rack (16). The inclined plates (70) are located below the filter press frame (37).

10. The method of using the multi-stage pressure filtration treatment device for municipal pile foundation construction mud according to claim 9, characterized in that, Includes the following steps: S1: Set up a sewage tank (2) for material storage, dosing device (11) for flocculation, sedimentation tank (10) for three-stage pretreatment of sedimentation. When the lifting pump (12) pumps the pile foundation mud into the sedimentation tank (10), the dosing device (11) adds flocculant at the same time. The fine soil particles in the mud clump together and settle. The conical bottom of the sedimentation tank (10) is conducive to the concentration and aggregation of sludge. The supernatant is discharged into the groove (18) through the overflow pipe (4) and flows into the water purification tank (3). Most of the clean water is separated in advance, reducing the pressure filter circulation time. S2: The filter press frame (37) is divided into three groups and is linked by the tripod (39). The moving trolley (40) is equipped with the electric push rod (41) and the clamp (43) is equipped with the pull block (45) to drag the filter press frame (37) in one group. The tripod (39) hinge structure automatically opens each group of filter plates. The mud cake between the filter cloth (36) falls off by its own weight. This abandons the traditional filter press manual disassembly and unloading mode of filter plates piece by piece, greatly reduces the labor intensity of manual labor, and improves the overall efficiency of mud treatment. S3: The positioning track (50) is equipped with a movable electric frame (51), and the two-way telescopic frame (54) is symmetrically arranged with two cleaning plates (57) with brush bristles (55). The cleaning plates (57) can be raised and lowered and moved laterally to brush both sides of the filter cloth (36) simultaneously. The transmission pump (59) draws clean water from the water tank (3) and sprays it out from the cleaning plate (57) through the transmission hose (60) and the rectangular hose (58). The brushing and rinsing are carried out simultaneously to thoroughly remove the solidified dirt in the pores of the filter cloth (36). S4: Two sets of triangular inclined plates (70) are installed below the filter press frame (37). Baffles (71) are provided at both ends of the inclined plates (70). The electric rod (73) at the bottom of the fixed block (72) controls the opening and closing of the inclined plates (70). During the cleaning operation, the inclined plates (70) close to form a guide slope. During the unloading operation, the inclined plates (70) retract into the collection rack (16) and open the unloading hole (19) at the top of the bearing plate (17).

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