CN111138062A - Mud filter press - Google Patents

Mud filter press Download PDF

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Publication number
CN111138062A
CN111138062A CN202010152456.5A CN202010152456A CN111138062A CN 111138062 A CN111138062 A CN 111138062A CN 202010152456 A CN202010152456 A CN 202010152456A CN 111138062 A CN111138062 A CN 111138062A
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frame
filter
pressing
plate
rectangular
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CN202010152456.5A
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CN111138062B (en
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龚秀刚
高超
干卫平
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Zhejiang Jinzu Environmental Treatment Equipment Co Ltd
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Zhejiang Jinzu Environmental Treatment Equipment Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A mud filter press comprises a frame, a fixed plate unit, a mud feeding pipe, a filter pressing assembly, an extrusion plate unit, a pressing device and an automatic resetting device; the fixing plate unit and the pressing device are positioned at the left end of the rack; the extrusion plate unit and the automatic resetting device are positioned at the right end of the frame; the filter pressing assembly is positioned on the fixed plate unit and the extrusion plate unit; the extrusion plate unit pushes each filter pressing frame to move leftwards on two side plates of the frame; the mud from the outside is separated and extruded in an extrusion cavity formed between the rectangular pits of each adjacent filter pressing frame, wherein the water enters the filter frame cavity through the filter screen and the water filtering holes and then is discharged to the water storage tank through the water outlet pipe; the automatic resetting device pulls the extrusion plate units and the filter pressing assemblies, and mud blocks in adjacent extrusion cavities are peeled off and discharged out of the filter pressing frame. The invention adopts pressure slurry filtration, effectively saves resources, has low equipment use cost and high mud-water separation efficiency, reduces the water content of the discharged mud block, effectively reduces the mud treatment cost and ensures that the discharge of the waste slurry meets the environmental protection requirement.

Description

Mud filter press
Technical Field
The invention belongs to the field of environment-friendly equipment, and particularly relates to a slurry filter press.
Background
At present, the development of cities is accompanied by a great amount of construction, and pile foundation engineering becomes one of the most common forms of buildings and is widely applied to construction engineering. The slurry has the functions of wall protection, hole cleaning, slag discharge, cooling and the like, can effectively inhibit the ejection and the burst of underground water in the stratum, and is widely applied to the construction of complicated foundations such as soft foundations, stone blocks and the like or ultra-deep and ultra-large diameter pile foundations. However, after the pile foundation construction operation is completed, on one hand, a large amount of slurry is left, and the slurry needs to be treated and transported before the next construction, so that a construction site is vacated; on the other hand, after the mud is circulated out of the drilled hole, the mud and the drilling slag are mixed together to form the mud, so that the waste mud is accumulated on the construction site. In addition, excavation of earth and stone in urban construction, such as excavation of foundation pits, tunneling, cleaning of river channels, construction of underground continuous walls, etc., is usually accompanied by the production of a large amount of waste slurry. The general construction site can not store a large amount of slurry, and only can adopt a temporary storage mode and a processing mode of regularly entrusting a third party to transport the slurry to the outside of the site. The outsourcing transportation has the defects of long distance, high cost, long time consumption and poor economy. In addition, the discharge of the slurry into a river after the outward transportation sometimes occurs, causing environmental pollution. Therefore, the treatment of a large amount of waste mud generated in urban construction is always a difficult problem which troubles the engineering construction.
With the continuous strict environmental protection requirements of construction sites, the harmless, quantitative reduction and resource treatment of construction sludge become inevitable development trends, and sludge dewatering is the premise of sludge final disposal. In the prior art, the slurry dehydration treatment method mainly comprises the following steps: vacuum suction filtration, flocculant precipitation, screw-stacking machine squeezing, centrifugal dehydration drying, and plate-frame extrusion. Wherein, the vacuum suction filtration method has the defects that the mud layer becomes more compact and water is difficult to suck out when the vacuum is pumped; the flocculant precipitation method has the defects of high medicine cost, long medicine soaking time, difficult control of the dosage and the like; the dewatering effect of the squeezing method of the screw stacking machine is influenced by the frequency of the main machine, the lower the frequency of the screw main machine is, the lower the rotating speed is, the more sufficient the squeezing is, the lower the water content is, and the treatment effect is reduced along with the increase of the frequency of the main machine; the centrifugal dehydration drying method has the defects of quick internal abrasion, high equipment maintenance cost and high cost due to the closed automatic continuous operation of the centrifugal machine; plate frame and van-type mud filter-pressing equipment use more on the sludge dewatering project because of advantages such as simple structure, easy and simple to handle, area are little, however drive filter-pressing device's among the filter-pressing equipment of current adoption hydraulic pressure or atmospheric pressure drive usually, but the actuating arm overlength can lead to hydraulic pressure effect to reduce.
The patent document with the patent number of CN107998706A in the Chinese invention patent discloses an automatic discharging slurry filter press, which has long requirements on the driving arm of an air cylinder and needs to be realized by using a larger air cylinder device; the invention can not collect mud cakes and mud residues and can not be automatically cleaned.
In the invention, a pressing device is a three-group gear rack transmission mechanism, although the driving length of a cylinder can be prolonged, the structure is complex, and the defects of difficult maintenance and high maintenance cost exist after the gear rack is worn or damaged.
In conclusion, the mud filter press with high mud-water separation efficiency and low treatment cost is developed, and the mud filter press is helpful for solving the problems existing in the existing mud dewatering treatment equipment.
Disclosure of Invention
The invention aims to provide a slurry filter press with high sludge-water separation efficiency and low treatment cost according to the defects in the prior art, so that the sludge discharge meets the environmental protection requirement, the sludge treatment cost is saved, the pollution of sludge in construction to the environment is reduced, and the modernization level of civilized construction and environmental protection construction is improved.
The invention is realized by the following technical scheme:
the utility model provides a mud filter press, includes frame, mud inlet pipe, fixed plate unit, filter pressing component, stripper plate unit, closing device and automatic re-setting device, wherein:
the rack comprises a left platform, a fixed pulley frame, a rack side plate, a water storage tank, a limiting block, a supporting leg and a right platform;
the fixed plate unit comprises a fixed plate with a first rectangular groove and a feeding hole and fixed plate rope seats positioned on two sides of the fixed plate;
the filter pressing assembly comprises a plurality of filter pressing frames and extrusion cavities, and each filter pressing frame comprises a filter frame roller, a filter screen, a water outlet pipe, a filter frame inner cavity, a rectangular pit, a second rectangular groove, a second rectangular convex edge, a pulp inlet hole and a water filtering hole;
the extrusion plate unit comprises an extrusion plate with a first rectangular convex edge and a pressing plate notch, a pressing plate roller, a movable pulley frame and a steel wire rope pulling plate;
the pressing device comprises a pressing winch, a tension sensor and a pressing steel wire rope;
the automatic reset device comprises a reset winch, a reset steel wire rope and a connecting rope;
the method is characterized in that:
the rack is of a rectangular frame structure and is used as an installation carrier of other components; the two side plates of the frame are arranged along the width direction of the frame, and the upper planes of the side plates of the two side plates are used as moving guide rails of the filter pressing assembly and the moving pressing plate; the supporting legs are arranged below the side plates of the rack and used for supporting the rack; the limiting blocks are respectively arranged at the right ends of the outer side surfaces of the two rack side plates; the water storage tank is positioned at the bottom of the frame and between the support legs;
the fixing plate unit is positioned at the left end of the rack and is fixed on two rack side plates of the rack through the fixing plate; the feed hole of the fixed plate is communicated with a slurry feed pipe and is used for conveying slurry from the outside; the first rectangular groove is arranged on the end face of the inner side of the fixing plate;
the filter pressing assembly is sequentially and oppositely arranged between the fixed plate unit and the extrusion plate unit through a plurality of filter pressing frames and moves on the frame; the filter pressing frame is a frame structure body and is supported on the upper plane of the side plate of the frame through filter frame rollers positioned on the two sides of the middle part of the frame; the inner cavity of the filter frame is arranged in the inner cavity of the filter frame along the geometric center of the filter frame; the rectangular pit is arranged on the left plane and the right plane of the filter pressing frame along the geometric center of the filter pressing frame, and the pit bottom of the rectangular pit is communicated with the inner cavity of the filter pressing frame through a plurality of water filtering holes; the filter screen is arranged in the rectangular concave pits of the filter pressing frame, and when the filter pressing frames are mutually and tightly connected, the two opposite rectangular concave pits are closed to form an extrusion cavity; the second rectangular groove and the second rectangular convex edge are respectively arranged on the left plane and the right plane of the filter pressing frame and are positioned at the periphery of the rectangular pit, and the second rectangular groove and the second rectangular convex edge can be matched with each other when the two adjacent filter pressing frames are tightly pressed; the water outlet pipe is positioned at the bottom of the filter pressing frame and is communicated with the inner cavity of the filter frame, and the outlet end of the water outlet pipe is led to the water storage tank; the filter press frame is provided with filter frame earrings at two sides above the filter frame roller;
the extrusion plate unit is arranged on two side plates of the rack through an extrusion body and is limited in the right movement direction at the left sides of the two limit blocks on the side surfaces of the extrusion plate unit; the pressing plate grooves of the extruding body are positioned at two sides of the extruding body, and pressing plate rolling shafts are respectively installed in the pressing plate grooves; the extrusion plate is arranged in the two frame side plates of the frame through the pressure plate groove of the extrusion plate and is supported on the upper planes of the two frame side plates by virtue of the pressure plate rolling shaft; the movable pulley yoke and the pressing plate rope seat are arranged on the left end face of the extrusion plate, the movable pulley yoke is positioned on the outer side of the pressing plate groove, and the pressing plate rope seat is positioned above the pressing plate groove; the steel wire rope pulling plate is arranged on the right end face of the extrusion plate;
the two sets of the pressing devices are symmetrically arranged on the left of the rack along the front and back directions of the rack; the pressing winches are respectively arranged on the front side and the rear side of the left platform of the rack and positioned on the left side of the side plate of the rack; the steel wire ropes are led out from the pressing winches and then respectively pass through the two movable pulley frames on the left side surface of the extrusion body and the two fixed pulley frames on the outer side surface of the side plate of the rack and then are fixed on the side plate of the rack; the tension sensors are respectively arranged at the steel wire ropes led out from the two fixed pulley frames;
the first rectangular groove on the inner side surface of the fixed plate, the second rectangular groove on the left side surface of the filter pressing frame, the second rectangular convex edge on the left side surface and the second rectangular groove on the right side surface of each filter pressing frame, the second rectangular convex edge on the right side surface of each filter pressing frame and the first rectangular convex edge on the inner side surface of the extrusion plate are all closed rectangular rings which have the same size and are matched with each other;
the reset winch of the automatic reset device is arranged on the right platform of the rack, and the reset steel wire rope is led out from the reset winch and then connected to the steel wire rope pulling plate on the right side face of the extrusion body; the connecting ropes are divided into two groups, and the two groups of connecting ropes respectively penetrate through the filtering frame earrings of the filtering frames and then connect the filtering frames in series; the left end of the connecting rope is locked on the fixed plate rope seat of the fixed plate, and the right end of the connecting rope is locked on the pressing plate rope seat of the pressing plate body.
The invention may be characterized in that the depth dimensions of the first rectangular groove on the inner side surface of the fixing plate and the second rectangular groove on the left side surface of the filter pressing frame are both L1, and the height dimensions of the second rectangular convex edge on the left side surface of the filter pressing frame and the first rectangular convex edge on the inner side surface of the pressing plate are both L2, wherein L1-L2 =10-15 mm.
The invention can also be characterized in that the distance from the bottom of the roller at the two sides of each filter pressing frame in the filter pressing assembly to the upper plane of the side plate of the frame is equal to the distance from the bottom of the roller of the pressing plate at the pressing plate groove of the pressing body of the pressing plate unit to the upper plane of the side plate of the frame.
Compared with the prior art, the invention has the advantages or positive effects that:
(1) the invention adopts the winch steel wire rope tension device as a filter press driving mode, realizes the compression effect on the filter pressing assembly by pulling the movable pressing plate through the steel wire rope, enables water in slurry to be quickly separated out through the filter pressing frame, greatly improves the separation efficiency, can solve the problem of insufficient end pressure caused by the length extension of a hydraulic rod or a pneumatic rod through the compression device, can save labor by adopting a movable pulley, can obtain 4 times of tension by selecting small-sized winch equipment, and achieves better compression effect;
(2) the automatic reset device is arranged, so that the distance between the movable pressing plate and the filter pressing assembly before compression can be quickly and automatically restored, the automatic dropping and cleaning of sludge are facilitated, and the structure is practical and reasonable;
(3) compared with the prior art, the electrically-driven compaction winch has the advantages that hydraulic parts are reduced, and the manufacturing cost of equipment is reduced. In addition, the invention adopts pressure slurry filtration, compared with a treatment mode adopting a flocculating agent, the invention effectively saves resources and has low equipment use cost.
Drawings
FIG. 1 is a schematic view of the construction of a mud filter press according to the present invention;
FIG. 2 is a schematic structural view of the frame and fixing plate unit of the present invention;
FIG. 3 is a schematic diagram of a right-hand structure of a filter press frame according to the present invention;
FIG. 4 is a left side view of the press frame of the press assembly of the present invention;
FIG. 5 is a cross-sectional view of the press chamber formed by the pressing of adjacent press frames of the press assembly of the present invention;
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a schematic left-hand view of the squeeze plate unit according to the present invention;
FIG. 8 is a schematic view of a partial structure of the frame and the automatic reset device of the present invention;
FIG. 9 is a partial structural view of a fixing plate according to the present invention;
fig. 10 is a partial structural view of the compression plate in the present invention.
In the figure: 1-a frame, 2-a slurry feeding pipe, 3-a fixed plate unit, 4-a filter pressing assembly, 5-an extrusion plate unit, 6-a pressing device and 7-an automatic resetting device; 11-a left platform, 12-a fixed pulley frame, 13-a rack side plate, 14-a water storage tank, 15-a limiting block, 16-a supporting leg, 17-a right platform; 31-fixed plate, 32-fixed plate rope seat, 311-first rectangular groove, 312-feed hole; 40-a filter pressing frame, 41-a water filtering hole, 42-a roller, 43-a filter screen, 44-a water outlet pipe, 45-a filter frame inner cavity, 46-a rectangular pit, 47-an extrusion cavity, 48-a second rectangular groove, 48' - -a second rectangular convex edge, 49-a pulp inlet hole; 51-extrusion plate, 52-pressing plate roller, 53-movable pulley frame, 54-steel wire rope pulling plate; 511- -a first rectangular flange; 61-pressing winch, 62-tension sensor, 604-pressing steel wire rope; 71-reset winch, 72-reset steel wire rope, 73-connecting rope.
Detailed Description
The mud separation system of the present invention is further described with reference to the accompanying drawings and examples:
a mud filter press comprises a frame 1, a mud feeding pipe 2, a fixing plate unit 3, a filter pressing assembly 4, a squeezing plate unit 5, a pressing device 6 and an automatic resetting device 7; the frame 1 comprises a left platform 11, a fixed pulley frame 12, a frame side plate 13, a water storage tank 14, a limiting block 15, a supporting leg 16 and a right platform 17; the fixing plate unit 3 comprises a fixing plate 31 with a first rectangular groove 311 and a feeding hole 312 and a fixing plate rope seat 32 positioned at two sides of the fixing plate; the filter pressing assembly 4 comprises a plurality of filter pressing frames 40 and an extrusion cavity 47, wherein each filter pressing frame 40 comprises a filter frame roller 42, a filter screen 43, a water outlet pipe 44, a filter frame inner cavity 45, a rectangular pit 46, a second rectangular groove 48, a second rectangular convex edge 48', a pulp inlet hole 49 and a water filtering hole 41; the pressing plate unit 5 comprises a pressing plate 51 with a first rectangular convex edge 511 and a pressing plate notch 512, a pressing plate roller 52, a movable pulley frame 53 and a steel wire rope pulling plate 54; the pressing device 6 comprises a pressing winch 61, a tension sensor 63 and a pressing steel wire rope 64; the automatic reset device 7 comprises a reset winch 71, a reset steel wire rope 72 and a connecting rope 73; wherein:
the rack 1 is a rectangular frame structure and is used as an installation carrier of other components; the two side plates 13 of the frame are arranged along the width direction of the frame 1, and the upper planes 131 of the side plates are used as moving guide rails of the filter pressing assembly 4 and the moving pressing plate 5; the supporting legs 16 are arranged below the side plates 13 of the rack and used for supporting the rack 1; the limiting blocks 15 are respectively arranged at the right ends of the outer side surfaces of the two rack side plates 13; the reservoir 14 is located at the bottom of the housing 1 between the legs 16.
The fixing plate unit 3 is positioned at the left end of the frame 1 and is fixed on two frame side plates 13 of the frame 1 through a fixing plate 31; the feed hole 312 of the fixed plate 31 is communicated with the slurry feed pipe 2 for conveying slurry from the outside; the first rectangular groove 311 is disposed on the inner end surface of the fixing plate 31.
The filter pressing assembly 4 is sequentially and oppositely arranged between the fixed plate unit 3 and the extrusion plate unit 5 through a plurality of filter pressing frames 40 and moves on the frame 1; the filter pressing frame 40 is a frame structure body and is supported on the upper plane 131 of the side plate 13 of the frame through filter frame rollers 42 positioned at two sides of the middle part of the frame; the filter frame inner cavity 45 is arranged in the inner cavity of the filter frame 40 along the geometric center of the filter frame; the rectangular pit 46 is arranged on the left plane and the right plane of the filter pressing frame 40 along the geometric center of the filter pressing frame, and the bottom of the pit is communicated with the inner cavity 45 of the filter frame through a plurality of water filtering holes 41; the filter screen 43 is arranged in the rectangular concave pit 46 of the filter pressing frame 40, and when the filter pressing frame 40 is tightly connected with each other, two opposite rectangular concave pits 46 are closed to form an extrusion cavity 47; the second rectangular groove 48 and the second rectangular convex edge 48 'are respectively arranged on the left and right planes of the filter-pressing frame 40 and are positioned at the periphery of the rectangular pit 46, and the second rectangular groove 48 and the second rectangular convex edge 48' can be mutually matched when the two adjacent filter-pressing frames 40 are tightly pressed; the water outlet pipe 44 is positioned at the bottom of the filter pressing frame 40 and is communicated with the filter frame inner cavity 45, and the outlet end of the water outlet pipe is led to the water storage tank 14; the filter press frame 40 is provided with filter frame ear rings 404 at both sides above the filter frame rollers 42.
The extrusion plate unit 5 is arranged on two frame side plates 13 of the frame 1 through an extrusion body 51, and is limited in the right moving direction at the left sides of two limit blocks 15 on the side surfaces of the extrusion plate unit; the pressing plate grooves 512 of the extruding body 51 are positioned at two sides of the extruding body, and the pressing plate grooves are respectively provided with pressing plate rolling shafts 52; the extrusion plate 51 is arranged in the two frame side plates 13 of the frame 1 through the pressure plate groove 512 and is supported on the upper planes of the two frame side plates 13 by the pressure plate roller 52; the movable pulley frame 53 and the pressing plate rope seat 55 are both arranged on the left end face of the extrusion plate 51, wherein the movable pulley frame 53 is positioned on the outer side of the pressing plate groove 512, and the pressing plate rope seat 55 is positioned above the pressing plate groove 512; the wire rope pulling plate 54 is provided on the right end surface of the squeeze plate 51.
Two sets of the pressing devices 6 are symmetrically arranged on the left of the rack 1 along the front-back direction of the rack; the pressing winches 61 are respectively arranged at the front side and the rear side of the left platform 11 of the frame 1 and positioned at the left side of the side plate 13 of the frame; the steel wire ropes 64 are led out from the compaction winches 61 and then respectively pass through the two movable pulley frames 53 on the left side surface of the extrusion body 51 and the two fixed pulley frames 12 on the outer side surface of the rack side plate 13 and then are fixed on the rack side plate 13; the tension sensors 63 are respectively arranged at the steel wire ropes led out from the two fixed pulley frames 12;
the reset winch 71 of the automatic reset device 7 is arranged on the right platform 17 of the frame 1, and the reset steel wire rope 72 is led out from the reset winch 71 and then connected to the steel wire rope pulling plate 54 on the right side surface of the extrusion body 51; the connecting ropes 73 are divided into two groups, and the two groups respectively penetrate through the filtering frame earrings 404 of the filtering frames 40 to connect the filtering frames 40 in series; the left end of the connecting rope 73 is locked to the fixing rope seat 32 of the fixing plate 31, and the right end thereof is locked to the pressing plate rope seat 55 of the pressing plate body 51.
The first rectangular groove 311 on the inner side surface of the fixing plate 31 and the second rectangular flange 48 'on the left side surface of the filter pressing frame 40, the second rectangular flange 48' on the left side surface of each filter pressing frame 40 and the second rectangular groove 48 on the right side surface, and the first rectangular flange 511 on the inner side surface of the pressing plate 51 and the second rectangular groove 48 on the right side surface of the filter pressing frame 40 are closed rectangular rings which have the same size and are matched with each other. The depth of the first rectangular groove 311 on the inner side of the fixing plate 31 and the depth of the second rectangular groove 48 on the left side of the filter pressing frame 40 are both L1, and the height of the second rectangular convex edge 48' on the left side of the filter pressing frame 40 and the height of the first rectangular convex edge 511 on the inner side of the pressing plate 51 are both L2, wherein L1-L2 =10-15 mm. The distance from the bottom of the roller 42 at the two sides of each filter pressing frame 40 in the filter pressing assembly 4 to the upper plane 131 of the side plate of the frame 13 is equal to the distance from the bottom of the pressing plate roller 52 at the pressing plate groove 512 of the pressing body 51 of the pressing plate unit 5 to the upper plane 131 of the side plate of the frame side plate 13. Thus, when the extrusion plate 51 pushes each filter pressing frame 40 of the filter pressing assembly 4 leftwards along the two frame side plates 13 of the frame 1, it is ensured that the first rectangular convex edge 511 of the extrusion plate 51 completely enters the second rectangular groove 48 on the right side of the first filter pressing frame 40, the second rectangular convex edge 48 'on the left side of the two adjacent filter pressing frames 40 enters the second rectangular groove 48 on the right side, the second rectangular convex edge 48' on the left side of the leftmost filter pressing frame 40 enters the first rectangular groove 311 on the inner side of the fixed plate 31, and each extrusion chamber is effectively sealed, so that slurry is effectively prevented from overflowing from each closed extrusion chamber 47, the influence on the surrounding field in the slurry filter pressing process is reduced, and the environmental protection and civilized construction are facilitated.
The working principle of the mud filter press is as follows: and a slurry pumping pipeline is connected to the slurry feeding pipe 2, so that the pipeline is ensured not to leak. Operating the automatic reset device 7 to enable the reset steel wire 72 on the reset winch 71 to be in a loose state; the pressing device 6 is operated, the pressing winch 61 is started to tighten the wire rope 64 to pull the extrusion plate unit 5 to move leftwards along the machine frame 1, and the extrusion plate 51 pushes the plurality of filter pressing frames 40 connected in series of the filter pressing assembly 4 leftwards on the upper plane 131 of the side plates of the two machine frame side plates 13 of the machine frame 1, so that the plurality of filter pressing frames 40 are tightly connected with each other. The first rectangular flange 511 on the inside of the squeeze plate 51 enters the second rectangular recess 48 on the right side of the first filter press frame 40 to seal between the squeeze plate and the filter press frame. And between two adjacent filter press frames 40, the second rectangular convex edge 48' on the left side of the right one of the filter press frames 40 enters the second rectangular groove 48 on the right side of the left one of the adjacent filter press frames 40, thereby sealing the extrusion chamber 47 formed by the closing of the opposite rectangular concave pit 46 between the two adjacent filter press frames 40. As the press assembly 4 continues to be squeezed until the leftmost press frame 40 abuts the stationary plate 3, the second rectangular flange 48' on the left side of the press frame enters the first rectangular recess 311 on the inner side of the stationary plate 3 to seal between the stationary plate and the press frame. The mud from the outside is pumped into the feeding hole 312 of the fixed plate 31 and the extrusion cavity 47 formed by closing the rectangular concave pit 46 between two adjacent filter pressing frames 40 in each filter pressing frame 40 of the filter pressing assembly 4 through the mud feeding pipe 2, the outside mud is extruded in each extrusion cavity 47, the filter screen 43 at the bottom of the rectangular concave pit 46 filters the moisture in the mud, and the moisture is continuously discharged to the inner cavity 45 of the filter frame through the plurality of water filtering holes 41 at the bottom of the rectangular concave pit 46. As the extrusion plate 51 moves leftwards continuously to extrude each filter pressing frame 40, the pressure of external slurry in each extrusion cavity 47 is increased continuously, the moisture in the external slurry is filtered continuously to enter the filter frame inner cavity 45, the external slurry is discharged through the water outlet pipe 44 at the bottom of the filter frame inner cavity and flows into the water storage tank 14, and the slurry extruded with water is left in each extrusion cavity 47 and is accumulated continuously to form a mud cake. The numerical value of the pressure sensor 63 of the pressing device 6 is adjusted, so that the pressing force of the pressing steel wire rope 64 meets the requirement of treating the water content of the slurry, and the slurry discharge requirement is met. After the mud filter pressing is finished, the pressing device 6 is operated to enable the pressing winch 61 to tighten the steel wire rope 64 to be in a loose state; and operating the automatic resetting device 7, starting the resetting winch 71 to pull the resetting steel wire rope 72 to enable the movable pressing plate 5 to move rightwards, pulling the pressing and filtering frames 40 which are mutually tightly closed by the movable pressing plate 5 through the connecting rope 73, and enabling mud blocks in the pressing and filtering frames to fall off from the extrusion cavity 47 to complete mud pressing and filtering treatment and achieve the purpose of mud-water separation.
The invention adopts the winch steel wire rope tension device as a filter press driving mode, realizes the compression effect on the filter press assembly by pulling the extrusion plate through the steel wire rope, enables water in slurry to be quickly separated out through the filter press frame through continuous extrusion, greatly improves the separation efficiency, can solve the problem of insufficient end pressure caused by the length extension of a hydraulic rod or a pneumatic rod through the compression device, can save labor by adopting a movable pulley, can obtain 4 times of pulling force by selecting small-sized winch equipment, and achieves better compression effect. By arranging the automatic resetting device, the invention can quickly enable the extrusion plate and the filter pressing assembly to automatically return to the distance before compression, is convenient for automatic dropping of treated mud blocks and cleaning of filter frames, and has practical and reasonable structure. According to the invention, if the compaction winch adopts an electric driving mode, compared with the prior art, hydraulic parts are reduced, and the manufacturing cost is reduced; in addition, the invention adopts a pressure slurry filtering mode, compared with a treatment mode adopting a flocculating agent, the invention effectively saves resources and has low equipment use cost.
Various changes and modifications may be made without departing from the general inventive concept, but they are within the scope of the present invention as long as they are equivalent or similar to the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. The utility model provides a mud filter press, includes frame (1), mud inlet pipe (2), fixed plate unit (3), filter pressing subassembly (4), stripper plate unit (5), closing device (6) and automatic re-setting device (7), wherein:
the rack (1) comprises a left platform (11), a fixed pulley frame (12), a rack side plate (13), a water storage tank (14), a limiting block (15), a supporting leg (16) and a right platform (17);
the fixing plate unit (3) comprises a fixing plate (31) with a first rectangular groove (311) and a feeding hole (312) and a fixing plate rope seat (32) positioned on two sides of the fixing plate;
the filter pressing assembly (4) comprises a plurality of filter pressing frames (40) and an extrusion cavity (47), wherein each filter pressing frame (40) comprises a filter frame roller (42), a filter screen (43), a water outlet pipe (44), a filter frame inner cavity (45), a rectangular pit (46), a second rectangular groove (48), a second rectangular convex edge (48'), a pulp inlet hole (49) and a water filtering hole (41);
the pressing plate unit (5) comprises a pressing plate (51) with a first rectangular convex edge (511) and a pressing plate notch (512), a pressing plate roller (52), a movable pulley frame (53) and a steel wire rope pulling plate (54);
the pressing device (6) comprises a pressing winch (61), a tension sensor (63) and a pressing steel wire rope (64);
the automatic reset device (7) comprises a reset winch (71), a reset steel wire rope (72) and a connecting rope (73);
the method is characterized in that:
the rack (1) is a rectangular frame structure and is used as an installation carrier of other components; the two side plates (13) of the frame are arranged along the width direction of the frame (1), and the upper planes (131) of the side plates are used as moving guide rails of the filter pressing assembly (4) and the moving pressing plate (5); the supporting legs (16) are arranged below the side plates (13) of the rack and used for supporting the rack (1); the limiting blocks (15) are respectively arranged at the right ends of the outer side surfaces of the two rack side plates (13); the water storage tank (14) is positioned at the bottom of the frame (1) and between the support legs (16);
the fixing plate unit (3) is positioned at the left end of the rack (1) and is fixed on two rack side plates (13) of the rack (1) through a fixing plate (31); the feeding hole (312) of the fixed plate (31) is communicated with a slurry feeding pipe (2) and is used for conveying slurry from the outside; the first rectangular groove (311) is arranged on the end surface of the inner side of the fixing plate (31);
the filter pressing assembly (4) is sequentially and oppositely arranged between the fixed plate unit (3) and the extrusion plate unit (5) through a plurality of filter pressing frames (40) and moves on the frame (1); the filter pressing frame (40) is a frame structure body and is supported on a side plate upper plane (131) of a rack side plate (13) through filter frame rollers (42) positioned at two sides of the middle part of the frame; the inner cavity (45) of the filter frame is arranged in the inner cavity of the filter frame along the geometric center of the filter frame (40); the rectangular pit (46) is arranged on the left plane and the right plane of the filter pressing frame (40) along the geometric center of the filter pressing frame, and the bottom of the pit is communicated with the inner cavity (45) of the filter pressing frame through a plurality of water filtering holes (41); the filter screen (43) is arranged in the rectangular concave pit (46) of the filter pressing frame (40), and when the filter pressing frame (40) is tightly connected with each other, the two opposite rectangular concave pits (46) are closed to form an extrusion cavity (47); the second rectangular groove (48) and the second rectangular convex edge (48') are respectively arranged on the left plane and the right plane of the filter-pressing frame (40) and are positioned at the periphery of the rectangular pit (46), and the second rectangular groove and the second rectangular convex edge can be matched with each other when the two adjacent filter-pressing frames (40) are tightly pressed; the water outlet pipe (44) is positioned at the bottom of the filter pressing frame (40) and is communicated with the inner cavity (45) of the filter frame, and the outlet end of the water outlet pipe is led to the water storage tank (14); the two sides of the filter pressing frame (40) above the filter frame roller (42) are provided with filter frame earrings (404);
the extrusion plate unit (5) is arranged on two frame side plates (13) of the frame (1) through an extrusion body (51) and is limited in the right moving direction at the left sides of two limit blocks (15) on the side surface of the extrusion plate unit; the pressing plate grooves (512) of the extruding body (51) are positioned at two sides of the extruding body, and pressing plate rolling shafts (52) are respectively arranged in the pressing plate grooves; the extrusion plate (51) is arranged in the two frame side plates (13) of the frame (1) through the pressing plate grooves (512) and is supported on the upper planes of the two frame side plates (13) by the pressing plate rolling shafts (52); the movable pulley frame (53) and the pressing plate rope seat (55) are arranged on the left end face of the extrusion plate (51), wherein the movable pulley frame (53) is positioned on the outer side of the pressing plate groove (512), and the pressing plate rope seat (55) is positioned above the pressing plate groove (512); the steel wire rope pulling plate (54) is arranged on the right end face of the extrusion plate (51);
the two sets of the pressing devices (6) are symmetrically arranged on the left of the rack (1) along the front-back direction of the rack; the pressing winches (61) are respectively arranged on the front side and the rear side of a left platform (11) of the rack (1) and positioned on the left side of a side plate (13) of the rack; the steel wire ropes (64) are led out from the compaction winches (61) and then respectively pass through the two movable pulley frames (53) on the left side surface of the extrusion body (51) and the two fixed pulley frames (12) on the outer side surface of the rack side plate (13) and then are fixed on the rack side plate (13); the tension sensors (63) are respectively arranged on the steel wire ropes led out from the two fixed pulley frames (12);
the first rectangular groove (311) on the inner side surface of the fixing plate (31), the second rectangular groove (48) on the left side surface of the filter pressing frame (40), the second rectangular convex edge (48 ') on the left side surface and the second rectangular groove (48) on the right side surface of each filter pressing frame (40), the second rectangular convex edge (48') on the right side surface of each filter pressing frame (40) and the first rectangular convex edge (511) on the inner side surface of the extrusion plate (51) are closed rectangular rings which have the same size and are matched with each other;
a reset winch (71) of the automatic reset device (7) is arranged on a right platform (17) of the rack (1), and the reset steel wire rope (72) is led out from the reset winch (71) and then connected to a steel wire rope pulling plate (54) on the right side surface of the extrusion body (51); the connecting ropes (73) are divided into two groups, and the two groups respectively penetrate through the filtering frame earrings (404) of the filtering frames (40) and then connect the filtering frames (40) in series; the left end of the connecting rope (73) is locked on a fixed plate rope seat (32) of the fixed plate (31), and the right end of the connecting rope is locked on a pressing plate rope seat (55) of the pressing plate body (51).
2. A mud filter press according to claim 1, wherein the depth dimension of the first rectangular recess (311) on the inner side of the fixed plate (31) and the second rectangular recess (48) on the left side of the filter frame (40) are both L1, and the height dimension of the second rectangular flange (48') on the left side of the filter frame (40) and the first rectangular flange (511) on the inner side of the squeeze plate (51) are both L2, wherein L1-L2 =10-15 mm.
3. A mud filter press according to claim 1, wherein the distance from the bottom of the roller (42) at each side of the press frame (40) in the press assembly (4) to the upper plane (131) of the side plate of the frame side plate (13) is the same as the distance from the bottom of the platen roller (52) at the platen slot (512) of the press body (51) of the squeeze plate unit (5) to the upper plane (131) of the side plate of the frame side plate (13).
CN202010152456.5A 2020-03-06 2020-03-06 Mud filter press Active CN111138062B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494253A (en) * 2021-07-28 2021-10-12 中铁二十二局集团第一工程有限公司 High-efficient mud treatment facility
CN114506989A (en) * 2022-03-18 2022-05-17 苏州市职业大学 High-dryness sludge extrusion device with anti-overflow function
CN114634291A (en) * 2022-03-21 2022-06-17 苏州市职业大学 Integrated dehydration process based on high-dryness sludge extrusion device
CN114712908A (en) * 2022-05-18 2022-07-08 福建省协昌环保科技有限公司 Efficient driving type filter press and working method thereof
CN118125680A (en) * 2024-05-10 2024-06-04 泰州明锋资源再生科技有限公司 Strip-shaped sludge extruder

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EP1329427A2 (en) * 2002-01-22 2003-07-23 Karl Kraus Sludge dewatering device and process
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CN207435289U (en) * 2017-08-28 2018-06-01 蔡海波 A kind of mud extruder
CN212025157U (en) * 2020-03-06 2020-11-27 浙江金祖环境治理设备股份有限公司 Mud filter press

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Publication number Priority date Publication date Assignee Title
CN2290382Y (en) * 1997-03-04 1998-09-09 李�根 Automatic cake unloading device of filter press
KR20010055350A (en) * 1999-12-10 2001-07-04 이구택 Device for detaching filter plate of filter press
EP1329427A2 (en) * 2002-01-22 2003-07-23 Karl Kraus Sludge dewatering device and process
KR100670757B1 (en) * 2005-10-19 2007-01-17 김용식 Filtration the washing system of filterpress
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CN212025157U (en) * 2020-03-06 2020-11-27 浙江金祖环境治理设备股份有限公司 Mud filter press

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494253A (en) * 2021-07-28 2021-10-12 中铁二十二局集团第一工程有限公司 High-efficient mud treatment facility
CN114506989A (en) * 2022-03-18 2022-05-17 苏州市职业大学 High-dryness sludge extrusion device with anti-overflow function
CN114506989B (en) * 2022-03-18 2023-10-20 苏州市职业大学 High-dryness sludge extrusion device with anti-overflow function
CN114634291A (en) * 2022-03-21 2022-06-17 苏州市职业大学 Integrated dehydration process based on high-dryness sludge extrusion device
CN114712908A (en) * 2022-05-18 2022-07-08 福建省协昌环保科技有限公司 Efficient driving type filter press and working method thereof
CN114712908B (en) * 2022-05-18 2023-06-09 福建省协昌环保科技有限公司 High-efficiency driving type filter press and working method thereof
CN118125680A (en) * 2024-05-10 2024-06-04 泰州明锋资源再生科技有限公司 Strip-shaped sludge extruder

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