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CN-122010381-A - Mud filter press capable of reducing water pollution

CN122010381ACN 122010381 ACN122010381 ACN 122010381ACN-122010381-A

Abstract

The invention discloses a mud filter press capable of reducing water pollution, which relates to the technical field of mud filter pressing and comprises a main body frame, wherein an auxiliary force component for additionally applying a rotating force when a hydraulic unit extrudes the filter pressing unit is arranged on the side part of the hydraulic unit, a multi-form separation component for self-driving and separating the filter pressing unit after the extrusion of the hydraulic unit is finished is correspondingly arranged on the side part of the filter pressing unit, the multi-form separation component can selectively adopt a synchronous separation mode or a differential step separation mode, the rotating moment is stably transmitted to a compacting plate, the compacting plate is enabled to superimpose a circumferential rotating force on the basis of the axial extrusion force of the hydraulic unit, on one hand, the composite acting force enables mud in a filter chamber to be more uniform, incomplete dehydration of the mud in a part of areas due to insufficient stress is avoided, on the other hand, the circumferential rotating force enables a filter pressing plate group to generate tiny friction and vibration, the static attachment state of the mud on the surface of filter cloth is broken, and the service life of the filter cloth is prolonged.

Inventors

  • YE YIXIANG
  • SHENG WEIWEI
  • DAI YAJUAN

Assignees

  • 浙江金奕磐金环保(集团)有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (10)

  1. 1. A mud filter press capable of reducing water pollution is used for carrying out solid-liquid separation treatment on mud and comprises a main body frame (1), a filter pressing unit (2) is arranged in the main body frame (1), a hydraulic unit (3) is arranged on the side wall of the filter pressing unit (2), the mud filter press is characterized in that an auxiliary force component (4) used for additionally applying rotation force when the hydraulic unit (3) extrudes the filter pressing unit (2) is arranged on the side portion of the hydraulic unit (3), a multi-form separation component (5) used for self-driving separation of the filter pressing unit (2) after extrusion of the hydraulic unit (3) is finished is correspondingly arranged on the side portion of the filter pressing unit (2), and the multi-form separation component (5) can selectively adopt a synchronous separation mode or a differential separation mode, wherein the synchronous separation mode ensures that mud cakes fall off integrally, the differential separation mode is controlled by a distance, the separation requirements of different mud cakes are adapted, and the two modes can ensure discharging efficiency.
  2. 2. The slurry filter press capable of reducing water pollution according to claim 1, wherein the filter pressing unit (2) is formed by splicing a plurality of filter pressing plates (21), a closed filter chamber is formed by tightly attaching the filter pressing plates (21) in operation, filtrate grooves (22) with circular structures are formed in the surfaces of the filter pressing plates (21), the filtrate grooves (22) are radially distributed by taking the center of the filter pressing plates (21) as an origin, the rapid collection of permeated filtrate is ensured, and the overall circular design of the filter pressing plates (21) is matched, so that the flow resistance of the filtrate is ensured to be more uniform.
  3. 3. The slurry filter press capable of reducing water pollution according to claim 1, wherein the hydraulic unit (3) comprises a hydraulic cylinder (31) for providing driving force, a compacting plate (32) matched with the filter pressing unit (2) is arranged at the output end of the hydraulic cylinder (31), a hydraulic head end is arranged on one side, close to the filter pressing unit (2), of the hydraulic unit (3), a hydraulic tail end is arranged on one side, far away from the filter pressing unit (2), of the hydraulic unit (3), when the hydraulic unit works, the hydraulic cylinder (31) converts hydraulic energy into mechanical energy, the compacting plate (32) is driven to apply axial pressure to the filter pressing unit (2) from the hydraulic head end, and after the filtering is finished, the hydraulic cylinder (31) drives the compacting plate (32) to retract to the original position, so that the compression of the filter pressing unit (2) is released, and space is provided for a subsequent filter cake separating operation.
  4. 4. The slurry filter press capable of reducing water pollution according to claim 1, wherein the auxiliary force assembly (4) comprises a driving turntable (41) rotatably connected to the surface of the hydraulic cylinder (31), the driving turntable (41) and the pressing plate (32) are assembled in a sealing manner, a sleeve rail (42) is uniformly and fixedly connected to the surface of the driving turntable (41), a ball (43) is uniformly arranged in the sleeve rail (42), the convex surface of the ball (43) is attached to the inner wall of the pressing plate (32), and the driving turntable (41) is in electrical control operation integrally, so that rotational torque is transmitted to the pressing plate (32) to enable the pressing plate (32) to overlap circumferential rotational force while the hydraulic unit (3) provides axial extrusion force.
  5. 5. The slurry filter press capable of reducing water pollution according to claim 1, wherein the multi-form separation assembly (5) comprises driving motors (51) symmetrically arranged on the side wall of the main frame (1), the output ends of the driving motors (51) are fixedly connected with threaded shafts (52), nut collar shafts (53) with the same number as that of the filter pressing plates (21) are axially distributed on the outer wall of the threaded shafts (52), and a ball screw structure is formed between the threaded shafts (52) and the nut collar shafts (53).
  6. 6. A mud filter press capable of reducing water pollution according to claim 5, wherein the outer wall of the threaded shaft (52) is provided with continuous unidirectional thread grooves with consistent rotation directions, the hydraulic tail end of the hydraulic unit (3) is used as a starting end, the hydraulic head end is used as a terminating end, the pitch density of the thread grooves of the outer wall of the threaded shaft (52) is sequentially increased along the direction, namely the pitch of the thread grooves is gradually increased from the hydraulic tail end to the hydraulic head end, so that different shaft sections of the threaded shaft (52) form transmission areas with different pitch densities.
  7. 7. The slurry filter press capable of reducing water pollution according to claim 5, wherein the side walls of the nut collar shaft (53) are provided with base collars (54), the outer walls of the base collars (54) are fixedly connected with convex plates, long slats (55) are correspondingly arranged below the base collars (54), the long slats (55) are fixedly connected to the inner wall of the main body frame (1), the upper surfaces of the long slats (55) are uniformly and fixedly connected with convex points along the length direction, and the convex points on the surfaces of the long slats (55) are positioned on the movement paths of the convex plates on the outer walls of the base collars (54) to form corresponding matching relations between the convex plates and the convex points.
  8. 8. The mud filter press capable of reducing water pollution according to claim 7, wherein the side of the base collar (54) far away from the nut collar shaft (53) is fixedly connected with an elastic flexible shaft (56), one ends of the elastic flexible shafts (56) far away from the base collar (54) are respectively fixedly connected with the side walls of the corresponding filter press plates (21), a protective shell (57) is arranged on the side walls of the main frame (1) at positions corresponding to the threaded shafts (52), and the protective shell (57) covers the threaded shafts (52) in a semi-encircling mode.
  9. 9. The slurry filter press capable of reducing water pollution according to claim 1, wherein the multi-form separation assembly (5) further comprises driving cylinders (58) symmetrically arranged on the side wall of the main frame (1), the output ends of the driving cylinders (58) are respectively provided with an assembly shaft (59), one ends of the assembly shafts (59) far away from the driving cylinders (58) are fixedly connected with a pulling buckle plate group (510), the side wall of the pulling buckle plate group (510) is fixedly connected with cylindrical shafts (511) with the same number as that of the filter press plates (21), one ends of the cylindrical shafts (511) far away from the pulling buckle plate group (510) are respectively fixedly connected with the corresponding filter press plates (21), and elastic soft ropes (512) are fixedly connected between outer wall gaps of adjacent cylindrical shafts (511).
  10. 10. The slurry filter press capable of reducing water pollution according to claim 9, wherein the pull buckle connecting plate group (510) is formed by combining pull buckles with the same number as the filter press plates (21), wherein the pull buckles at two ends of the pull buckle connecting plate group (510) are in an obliquely symmetrical L-shaped structure, the pull buckle in the middle is in an obliquely symmetrical C-shaped structure, and gaps are reserved among the pull buckles.

Description

Mud filter press capable of reducing water pollution Technical Field The invention relates to the technical field of slurry filter pressing, in particular to a slurry filter press capable of reducing water pollution. Background The mud filter press device in the prior art reduces water pollution through the synergistic effect of physical pressurization and precise filtration, is suitable for the scenes of building pile driving, tunneling, oilfield drilling and the like for generating polluted mud, can solve the problem of secondary pollution in the traditional treatment mode, and can realize harmless treatment and resource recovery of mud by achieving the emission standard or recycling filtrate separated by the device, thereby greatly reducing the influence of sewage emission on the environment. However, the following drawbacks remain in the prior art when it is specifically used: 1. Compared with the existing slurry filter press, the core driving and separating structure design has obvious defects, from the perspective of extrusion driving, the existing hydraulic unit provides single axial extrusion force, the pressure transmission path is single and can only act on the filter pressing unit along the axial direction, the design leads slurry in the filter chamber to be only subjected to unidirectional pressure, a multidimensional stress state cannot be formed, partial viscous slurry is easy to form a stress dead angle in the filter chamber, and water is difficult to fully discharge. On one hand, the single axial extrusion makes the solid-liquid separation incomplete, the water content of the filter cake is higher, the subsequent treatment difficulty is increased, meanwhile, the residual amount of pollutants such as suspended particles in the filtrate is increased, the water treatment is additionally required to achieve the standard emission, the environmental-friendly treatment cost is increased, on the other hand, uneven slurry stress easily causes unbalanced distribution of the filter cake, excessive thinness or excessive thickness of the filter cake in partial areas is caused, the risk of filter cloth breakage is easily caused in the excessive thinness areas, and the insufficient dehydration problem is further aggravated in the excessive thickness areas, so that vicious circulation is formed. 2. From filter-pressing board and filtrate water conservancy diversion structure, current filter-pressing board is mostly non-circular design, and the filtrating groove adopts rectangle or irregular shape often, and distributes and lack symmetry, leads to filtrating to collect slow, the flow resistance uneven, easily forms hydrops dead angle in channel edges and corners department, and residual liquid carries the pollutant, has both reduced filtration efficiency, increases the follow-up clearance degree of difficulty again. Firstly, the concentration speed is slow due to uneven flow resistance of filtrate, the retention time of the filtrate in a part of area is too long, the filtrate is easy to be secondarily mixed with residual impurities of a filter cake, and the concentration of filtrate pollutants is increased; secondly, liquid accumulation dead angles are easy to form at the edges and corners of the rectangular channels and the concave positions of the irregular channels, residual liquid is difficult to discharge, filtering efficiency is reduced, pollutants can be bred on the surfaces of the filter pressing plates, manual disassembly and cleaning are needed after long-term use, maintenance workload is increased, thirdly, the combination of the non-circular filter pressing plates and the irregular filter pressing grooves enables uneven stress when the filter cloth is covered, local filter cloth is prone to leakage due to untight lamination, and filtering effect is further affected. 3. When the existing slurry filter press separates filter pressing units, a single driving-single transmission mode is mostly adopted, namely, each filter pressing plate is sequentially pulled or pushed through one driving source, synchronous driving or grading transmission structures are lacked, and simultaneous or grading separation of a plurality of filter pressing plates cannot be achieved. The efficiency of the separation mode is extremely low one by one, particularly when the number of filter pressing plates is large, the time is long in the separation process, the compression or friction is easily caused to the later plate when the former plate is separated, so that filter cakes are cracked and remain, the discharging time is further prolonged, secondly, residual slurry and residues cannot fall off and can be gradually accumulated on the surface of the filter pressing plates, the effective volume of a filter chamber is reduced, the subsequent filter pressing amount is reduced, a filtrate channel is blocked, the flowing resistance of filtrate is increased, and a malignant cycle of accumulation-blocking-inefficiency is formed. Th