CN111138062B - Mud filter press - Google Patents
Mud filter press Download PDFInfo
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- CN111138062B CN111138062B CN202010152456.5A CN202010152456A CN111138062B CN 111138062 B CN111138062 B CN 111138062B CN 202010152456 A CN202010152456 A CN 202010152456A CN 111138062 B CN111138062 B CN 111138062B
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- 238000003825 pressing Methods 0.000 claims abstract description 161
- 238000001125 extrusion Methods 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002002 slurry Substances 0.000 claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 238000005056 compaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 18
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 239000010802 sludge Substances 0.000 description 7
- 208000005156 Dehydration Diseases 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
Landscapes
- 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 slurry filter press comprises a frame, a fixed plate unit, a slurry feed pipe, a filter pressing assembly, an extrusion plate unit, a compacting device and an automatic resetting device; the fixed plate unit and the pressing device are positioned at the left end of the frame; the extruding plate unit and the automatic resetting device are positioned at the right end of the frame; the filter pressing component 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 the two side plates of the frame; the slurry from the outside is separated and extruded in the extrusion cavity formed between the rectangular pits of each adjacent press filtration frame, wherein the water enters the inner cavity of the filtration frame through the filter screen and the water filtering holes and is discharged to the water storage tank through the water outlet pipe; the automatic resetting device pulls the extrusion plate unit and the filter pressing assembly, and mud blocks in each adjacent extrusion cavity 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 discharged mud blocks, effectively reduces the slurry treatment cost, and ensures that the waste slurry discharge meets the environmental protection requirement.
Description
Technical Field
The invention belongs to the field of environmental protection equipment, and particularly relates to a slurry filter press.
Background
At present, the urban development is accompanied by a large amount of construction, and pile foundation engineering is one of the most common forms of building, and is widely applied in construction engineering. The mud has the functions of wall protection, hole cleaning, slag discharging, cooling and the like, can effectively inhibit the groundwater in the stratum from being sprayed out and gushed, and is widely used in pile foundation construction for soft foundations, block stones and other complex foundations or ultra-deep and ultra-large diameter pile foundations. However, after the pile foundation construction operation is finished, a large amount of slurry remains, and the slurry needs to be treated and cleared before the next construction is carried out, so that a construction site is vacated; on the other hand, after the mud circulates out of the drill hole, the mud and the drill slag are mixed together to form mud, so that the waste mud is accumulated on the construction site. In addition, the excavation construction of the earth and stone in urban construction, such as excavation of foundation pit, tunneling, river channel cleaning, underground diaphragm wall construction, etc., is often accompanied by a large amount of waste slurry output. The general building site can not store a large amount of mud volume, and only can adopt a temporary storage and timing to entrust a third party to transport the slurry to a place outside the site. The outsourcing transportation has the defects of long distance, high cost, long time consumption and poor economy. In addition, the discharge of slurry into the river after the outward transportation also occurs, which causes environmental pollution. Therefore, the treatment of waste mud generated by a large number of urban construction has been a difficult problem for engineering construction.
Along with the continuous strict environmental protection requirements of construction sites, harmless, reduction and recycling treatment of construction sludge become necessary development trend, and sludge dehydration is a precondition for final treatment of sludge. In the prior art, the slurry dehydration treatment method mainly comprises the following steps: vacuum filtration, flocculant precipitation, spiral shell stacking machine squeezing, centrifugal dehydration drying and plate-frame extrusion. Wherein, the mud layer becomes more compact when vacuuming by vacuum suction filtration, and the water is difficult to suck out; the flocculant precipitation method has the defects of high medicine cost, long medicine soaking time, difficult grasp of medicine consumption and the like; the dewatering effect of the spiral-superposition machine by the squeezing method is influenced by the frequency of a main machine, the lower the frequency of the spiral main machine is, the lower the rotating speed is, the more full the squeezing is, the lower the water content is, and the sludge water content increasing 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 because the centrifugal machine is closed and automatically and continuously operated; the plate frame type and box type slurry filter pressing equipment has the advantages of simple structure, simple and convenient operation, small occupied area and the like, is more applied to a sludge dewatering project, however, the prior filter pressing equipment is driven by hydraulic pressure or air pressure, and the overlong driving arm can reduce the hydraulic effect.
The patent document of the Chinese invention patent No. CN107998706A discloses an automatic discharging slurry filter press, and the invention has long requirement on the driving arm of the 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 automatically clean.
The patent document of the Chinese patent No. CN108751662A discloses a sludge slurry filter press, and the pressing device is three groups of gear-rack transmission mechanisms, which can prolong the driving length of a cylinder, but has a complex structure and has the defects of difficult maintenance and high maintenance cost after the gear-rack is worn or damaged.
In conclusion, a slurry filter press with high mud-water separation efficiency and low treatment cost is developed, which is helpful for solving the problems in the existing slurry dehydration treatment equipment.
Disclosure of Invention
The invention aims to provide a mud filter press with high mud-water separation efficiency and low treatment cost according to the defects in the prior art, so that the mud discharge meets the environmental protection requirement, the mud treatment cost is saved, the pollution of mud 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 pressure filter, includes frame, mud inlet pipe, fixed plate unit, filter-pressing subassembly, 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, supporting legs 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 side surfaces of the fixed plate;
the filter pressing assembly comprises a plurality of filter pressing frames and extrusion cavities, wherein 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 slurry 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 rolling shaft, a movable pulley frame and a steel wire rope pulling plate;
The compressing device comprises a compressing winch, a tension sensor and a compressing steel wire rope;
The automatic resetting device comprises a resetting winch, a resetting 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 a mounting 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 extrusion plate unit; 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 frame side plates; the water storage tank is positioned at the bottom of the frame and between the supporting legs;
The fixed plate unit is positioned at the left end of the frame and is fixed on two frame side plates of the frame through the fixed plate; the feeding hole of the fixed plate is communicated with the mud feeding pipe and is used for conveying mud from the outside; the first rectangular groove is arranged on the inner side end surface of the fixed 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 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 rectangular pits of the filter pressing frames, and when the filter pressing frames are tightly connected with each other, two opposite rectangular pits are closed to form an extrusion cavity; the second rectangular grooves and the second rectangular convex edges are respectively arranged on the left plane and the right plane of the press filtration frame and are positioned at the periphery of the rectangular pit, and the second rectangular grooves and the second rectangular convex edges can be matched with each other when the adjacent two press filtration frames are pressed tightly; the water outlet pipe is positioned at the bottom of the filter pressing frame and is communicated with the inner cavity of the filter pressing frame, and the outlet end of the water outlet pipe is led to the water storage tank; filter frame earrings are arranged on two sides of the filter frame above the filter frame rollers;
The extrusion plate unit is arranged on two side plates of the stand through the extrusion plate and limits the right moving direction of the left sides of two limiting blocks on the side surfaces of the extrusion plate unit; the pressing plate notch of the pressing plate is positioned at two sides of the pressing plate, and the pressing plate notch is respectively provided with a pressing plate rolling shaft; the extrusion plate is arranged in two side plates of the frame through a pressing plate groove of the extrusion plate and is supported on the upper planes of the two side plates by pressing plate rollers; the movable pulley frame and the pressing plate rope seat are arranged on the left end face of the extrusion plate, wherein the movable pulley frame is positioned on the outer side of the pressing plate notch, and the pressing plate rope seat is positioned above the pressing plate notch; the steel wire rope pulling plate is arranged on the right end face of the extrusion plate;
The two pressing devices are symmetrically arranged at the left side of the frame along the front-back direction of the frame; the compaction winches are respectively arranged at the front side and the rear side of the left platform of the frame and are positioned at the left side of the side plate of the frame; the steel wire ropes are led out from the compaction winches, respectively pass through a movable pulley frame on the left side surface of the extrusion plate and a fixed pulley frame on the outer side surface of the side plate of the frame, and are then fixed on the side plate of the frame; the tension sensors are respectively arranged at the positions of the steel wire ropes led out from the fixed pulley frames;
The first rectangular groove on the inner side surface of the fixing plate, the second rectangular groove on the left side surface of the pressing filter frame, the second rectangular convex edge on the left side surface of each pressing filter frame, the second rectangular groove on the right side surface of each pressing filter frame, the second rectangular convex edge on the right side surface of each pressing filter frame and the first rectangular convex edge on the inner side surface of the pressing plate are closed rectangular rings which are identical in size and are matched with each other;
The reset winch of the automatic reset device is arranged on the right platform of the frame, 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 surface of the extrusion plate; the connecting ropes are two groups, and pass through the filter frame earrings of each filter frame respectively to connect the filter frames together 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.
The invention can be characterized in that the depth sizes of the first rectangular groove on the inner side surface of the fixed plate and the second rectangular groove on the left side surface of the filter pressing frame are L1, and the height sizes 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 extrusion plate are 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 side surfaces of each filter pressing frame to the upper plane of the side plate of the frame is equal to the distance from the bottom of the pressing plate roller at the pressing plate notch 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) According to the invention, a winch steel wire rope tensioning device is adopted as a filter press driving mode, the compression effect on a filter pressing assembly is realized by pulling the extruding plate unit through the steel wire rope, so that water in slurry is quickly separated out through the filter pressing frame, the separation efficiency is greatly improved, the problem of insufficient end pressure caused by the length extension of a hydraulic rod or a pneumatic rod can be solved through the compression device, and a movable pulley is adopted, so that labor can be saved, small winch equipment is selected, and 4 times of tension can be obtained, so that a better compression effect is achieved;
(2) The automatic resetting device is arranged, so that the extruding plate unit and the filter pressing assembly can be quickly restored to the interval before compression, automatic dropping and cleaning of sludge are facilitated, and the structure is practical and reasonable;
(3) Compared with the prior art, the invention adopts the electrically-driven compaction winch, reduces hydraulic components and reduces the manufacturing cost of equipment. In addition, compared with the treatment mode of adopting flocculating agent, the invention adopts pressure pulp filtration, thereby effectively saving resources and having low equipment use cost.
Drawings
FIG. 1 is a schematic diagram of a slurry filter press according to the present invention;
FIG. 2 is a schematic view of a frame and a fixed plate unit according to the present invention;
FIG. 3 is a right-hand structural schematic diagram of the filter frame of the present invention;
FIG. 4 is a schematic view of the left-hand structure of the filter frame of the filter assembly of the present invention;
FIG. 5 is a cross-sectional view of a filter press chamber formed by extrusion of adjacent filter press frames of a filter press assembly of the present invention;
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a left-hand structural view of the squeeze plate unit of the present invention;
FIG. 8 is a schematic view of a part of the structure of the frame and the automatic resetting device in the present invention;
FIG. 9 is a schematic view showing a partial structure of a fixing plate in the present invention;
fig. 10 is a schematic view showing a partial structure of the pressing plate in the present invention.
In the figure: 1-a frame, 2-a mud feeding pipe, 3-a fixed plate unit, 4-a filter pressing assembly, 5-a squeeze plate unit, 6-a pressing device and 7-an automatic resetting device; 11-left platform, 12-fixed pulley frame, 13-frame side plate, 131-side plate upper plane, 14-water storage tank, 15-limited block, 16-supporting leg and 17-right platform; 31-a fixed plate, 32-a fixed plate rope seat, 311-a first rectangular groove, 312-a feeding hole; 40-a filter pressing frame, 41-a water filtering hole, 42-a filter frame 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 and 49-a slurry inlet hole; 51-an extrusion plate, 52-a pressing plate roller, 53-a movable pulley frame, 54-a steel wire rope pulling plate and 511-a first rectangular convex edge; 512-a clamp plate notch, 61-a compression winch, 62-a tension sensor, 604-a compression wire rope, 71-a reset winch, 72-a reset wire rope, 73-a connecting rope.
Detailed Description
The mud separation system of the present invention is further described below with reference to the accompanying drawings and examples:
A slurry filter press comprises a frame 1, a slurry feed pipe 2, a fixed plate unit 3, a filter pressing assembly 4, an extruding plate unit 5, a compacting 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, supporting legs 16 and a right platform 17; the fixed plate unit 3 comprises a fixed plate 31 with a first rectangular groove 311 and a feeding hole 312 and fixed plate rope seats 32 positioned on two side surfaces of the fixed plate; the filter pressing assembly 4 comprises a plurality of filter pressing frames 40 and a pressing 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 slurry inlet 49 and a water filtering hole 41; the squeeze plate unit 5 includes a squeeze plate 51, a platen roller 52, a movable pulley frame 53, and a wire rope pulling plate 54 of a first rectangular convex edge 511 and a platen groove 512; the compacting device 6 comprises a compacting winch 61, a tension sensor 63 and a compacting wire rope 64; the automatic resetting device 7 comprises a resetting winch 71, a resetting steel wire rope 72 and a connecting rope 73; wherein:
The frame 1 is of a rectangular frame structure and is used as a mounting carrier of other components; 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 serve as moving guide rails of the filter pressing assembly 4 and the extrusion plate unit 5; the supporting leg 16 is arranged below the frame side plate 13 and is used for supporting the frame 1; the limiting blocks 15 are respectively arranged at the right ends of the outer side surfaces of the two frame side plates 13; the water storage tank 14 is positioned at the bottom of the frame 1 and between the legs 16.
The fixed 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 fixed plate 31; the feed hole 312 of the fixed plate 31 is communicated with the mud feed pipe 2 for feeding mud from the outside; the first rectangular recess 311 is provided on the inner end surface of the fixing plate 31.
The filter pressing assembly 4 is arranged between the fixed plate unit 3 and the extrusion plate unit 5 in sequence and relatively arranged 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 on 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 press filter frame 40 along the geometric center of the press filter frame, and the pit bottom of the rectangular 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 placed in the rectangular concave pits 46 of the filter pressing frame 40, and when the filter pressing frames 40 are 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 press filtration frame 40 and are positioned at the periphery of the rectangular pit 46, and can be matched with each other when the two adjacent press filtration frames 40 are pressed tightly; 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 pressing frame, and the outlet end of the water outlet pipe is led to the water storage tank 14; the filter pressing frame 40 is provided with filter frame lugs 404 on two sides above the filter frame roller 42.
The extrusion plate unit 5 is arranged on the two frame side plates 13 of the frame 1 through the extrusion plate 51, and the left sides of the two limiting blocks 15 on the side surfaces of the extrusion plate unit are limited in the right moving direction; the pressing plate slots 512 of the pressing plate 51 are positioned on two sides of the pressing plate, and the pressing plate slots are respectively provided with pressing plate rollers 52; the pressing plate 51 is placed in the two frame side plates 13 of the frame 1 through the pressing plate notch 512 thereof and is supported on the upper planes of the two frame side plates 13 by the pressing plate roller 52; the movable pulley frame 53 and the pressing plate rope seat 55 are both arranged on the left end surface of the pressing plate 51, wherein the movable pulley frame 53 is positioned on the outer side of the pressing plate notch 512, and the pressing plate rope seat 55 is positioned above the pressing plate notch 512; the wire rope pulling plate 54 is provided on the right end face of the pressing plate 51.
The two sets of the pressing devices 6 are symmetrically arranged at the left side of the frame 1 along the front-back direction; the compaction winches 61 are respectively arranged at the front side and the rear side of the left platform 11 of the frame 1 and are positioned at the left side of the frame side plate 13; the steel wire ropes 64 are led out from the compaction winches 61 and respectively pass through the movable pulley frame 53 on the left side surface of the extrusion plate 51 and the fixed pulley frame 12 on the outer side surface of the frame side plate 13 to be fixed on the frame side plate 13; the tension sensors 63 are respectively arranged at the positions of the steel wire ropes led out from the 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 plate 51; the connecting ropes 73 are provided with two groups, and the two groups respectively penetrate through the filter frame earrings 404 of each filter pressing frame 40 and then connect the filter pressing frames 40 in series; the left end of the connecting rope 73 is locked to the fixed plate rope seat 32 of the fixed 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 convex edge 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, and the first rectangular convex edge 511 on the inner side surface of the extrusion 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 dimensions of the first rectangular groove 311 on the inner side surface of the fixing plate 31 and the second rectangular groove 48 on the left side surface of the press frame 40 are L1, and the height dimensions of the second rectangular convex edge 48' on the left side surface of the press frame 40 and the first rectangular convex edge 511 on the inner side surface of the pressing plate 51 are L2, wherein L1-l2=10-15 mm. The distance from the bottom of the roller 42 at the two sides of each filter frame 40 to the upper plane 131 of the side plate 13 of the frame is equal to the distance from the bottom of the platen roller 52 at the platen notch 512 of the platen 51 of the platen unit 5 to the upper plane 131 of the side plate 13 of the frame. 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, the first rectangular convex edge 511 of the extrusion plate 51 is guaranteed to completely enter the second rectangular groove 48 on the right side surface of the first filter pressing frame 40, the second rectangular convex edge 48 'on the left side surface of two adjacent filter pressing frames 40 enters the second rectangular groove 48 on the right side surface, the second rectangular convex edge 48' on the left side surface of the leftmost filter pressing frame 40 enters the first rectangular groove 311 on the inner side surface of the fixed plate 31, the extrusion cavities are effectively sealed, slurry is effectively prevented from overflowing from each closed extrusion cavity 47, the influence on the surrounding field in the slurry filter pressing process is reduced, and the environment protection and the civilized construction are facilitated.
The working principle of the slurry filter press is as follows: a mud pumping pipeline is connected to the mud feeding pipe 2, so that no leakage of the pipeline is ensured. Operating the automatic resetting device 7 to enable the resetting steel wire rope 72 on the resetting winch 71 to be in a loose state; the pressing device 6 is operated, the pressing winch 61 is started to tighten the steel wire rope 64 to pull the extrusion plate unit 5 to move leftwards along the frame 1, and the extrusion plate 51 pushes the plurality of serially connected filter pressing frames 40 of the filter pressing assembly 4 leftwards on the upper plane 131 of the side plates 13 of the two frame side plates 13 of the 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 surface of the compression plate 51 enters the second rectangular recess 48 on the right side surface of the first press frame 40 to seal between the compression plate and the press frame. And between two adjacent press frames 40, the second rectangular convex edge 48' on the left side of one press frame 40 on the right side enters the second rectangular concave groove 48 on the right side of the adjacent press frame 40 on the left side, thereby sealing the pressing cavity 47 formed by closing the opposite rectangular concave pits 46 between two adjacent press frames 40. When the filter press assembly 4 continues to be pressed to the leftmost filter press frame 40 adjacent to the fixed plate 3, the second rectangular convex edge 48' on the left side of the filter press frame enters the first rectangular groove 311 on the inner side of the fixed plate 3 to seal between the fixed plate and the filter press frame. The slurry from the outside is pumped into the feeding hole 312 of the fixed plate 31 through the slurry feeding pipe 2, the extrusion cavity 47 formed by closing the rectangular concave pits 46 between two adjacent filter pressing frames 40 in each filter pressing frame 40 of the filter pressing assembly 4, the slurry from the outside is extruded in each extrusion cavity 47, the filter screen 43 positioned at the bottom of the rectangular concave pit 46 filters the moisture in the slurry, and the moisture is continuously discharged to the inner cavity 45 of the filter pressing frame through the plurality of water filtering holes 41 at the bottom of the rectangular concave pit 46. As the squeeze plates 51 move leftwards continuously to squeeze the respective filter press frames 40, the external slurry pressure in the respective squeeze chambers 47 is increased continuously, water in the external slurry is filtered continuously into the filter press frame inner chambers 45, the water is discharged through the water outlet pipes 44 at the bottoms thereof and flows into the water storage tanks 14, and the slurry from which water is squeezed remains in the respective squeeze chambers 47 and is accumulated continuously to form a mud cake. The compression force of the compression steel wire rope 64 meets the water content requirement of the treated slurry and meets the slurry discharge requirement by adjusting the value of the pressure sensor 63 of the compression device 6. After the slurry pressure filtration is completed, 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; the automatic resetting device 7 is operated, the resetting winch 71 is started to pull the resetting steel wire rope 72 to enable the movable pressing plate 5 to move rightwards, the movable pressing plate 5 pulls away the mutually-closed filter pressing frames 40 through the connecting ropes 73, mud blocks in the filter pressing frames fall off from the extrusion cavity 47, mud filter pressing treatment is completed, and mud-water separation is achieved.
According to the invention, the winch steel wire rope tensioning device is adopted as a filter press driving mode, the compression effect on the filter pressing assembly is realized by pulling the extrusion plate unit through the steel wire rope, water in slurry is quickly separated out through the filter pressing frame through continuous extrusion, the separation efficiency is greatly improved, the problem of insufficient end pressure caused by the length extension of the hydraulic rod or the pneumatic rod can be solved through the compression device, and the movable pulley is adopted to save labor, small winch equipment is selected, and 4 times of tension can be obtained, so that a better compression effect is achieved. According to the invention, by arranging the automatic resetting device, the distance between the extrusion plate unit and the filter pressing assembly before compression can be quickly restored, automatic dropping of the mud blocks after treatment and cleaning of the filter frame are facilitated, and the structure is practical and reasonable. Compared with the prior art, the hydraulic component is reduced, and the manufacturing cost is reduced if the compaction winch adopts an electric driving mode; in addition, compared with the treatment mode of flocculating agent, the invention adopts the pressure pulp filtering mode, thereby effectively saving resources and having low equipment use cost.
Various changes and modifications can be made to the invention without departing from the general inventive concept, but, if the invention is embodied identically or equivalently, it is also within the scope of the invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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 pressure filter, 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 frame (1) comprises a left platform (11), a fixed pulley frame (12), frame side plates (13), a water storage tank (14), a limiting block (15), supporting legs (16) and a right platform (17);
the fixed plate unit (3) comprises a fixed plate (31) with a first rectangular groove (311) and a feeding hole (312) and fixed plate rope seats (32) positioned on two side surfaces of the fixed plate;
the filter pressing assembly (4) comprises a plurality of filter pressing frames (40) and extrusion cavities (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 slurry inlet hole (49) and a water filtering hole (41);
The extrusion plate unit (5) comprises an extrusion plate (51), a pressing plate roller (52), a movable pulley frame (53) and a wire rope pulling plate (54), wherein the extrusion plate comprises a first rectangular convex edge (511) and a pressing plate notch (512);
The compressing device (6) comprises a compressing winch (61), a tension sensor (63) and a compressing steel wire rope (64);
The automatic resetting device (7) comprises a resetting winch (71), a resetting steel wire rope (72) and a connecting rope (73);
the method is characterized in that:
The frame (1) is of a rectangular frame structure and is used as a mounting carrier of other components; 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 serve as moving guide rails of the filter pressing assembly (4) and the extrusion plate unit (5); the supporting legs (16) are arranged below the frame side plates (13) and used for supporting the frame (1); the limiting blocks (15) are respectively arranged at the right ends of the outer side surfaces of the two frame side plates (13); the water storage tank (14) is positioned at the bottom of the frame (1) and between the support legs (16);
The fixed 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 fixed plate (31); the feeding hole (312) of the fixed plate (31) is communicated with the mud feeding pipe (2) and is used for conveying mud from outside; the first rectangular groove (311) is arranged on the inner side end surface of the fixed plate (31);
the filter pressing assembly (4) is arranged between the fixed plate unit (3) and the extrusion plate unit (5) in sequence by a plurality of filter pressing frames (40) relatively 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 the side plate (13) of the frame through filter frame rollers (42) positioned on 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 pit bottom of the rectangular 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 rectangular pits (46) of the filter pressing frame (40), and when the filter pressing frames (40) are tightly connected with each other, two opposite rectangular pits (46) are closed to form an extrusion cavity (47); the second rectangular grooves (48) and the second rectangular convex edges (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 concave pits (46), and 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 pressing frame, and the outlet end of the water outlet pipe is led to the water storage tank (14); filter frame earrings (404) are arranged on two sides of the filter frame (40) above the filter frame roller (42);
The extrusion plate unit (5) is arranged on two frame side plates (13) of the frame (1) through an extrusion plate (51) and limits the right moving direction of the left sides of two limiting blocks (15) on the side surfaces of the extrusion plate unit; the pressing plate notches (512) of the pressing plate (51) are positioned on two sides of the pressing plate, and the pressing plate notches are respectively provided with pressing plate rollers (52); the extrusion plate (51) is arranged in the two frame side plates (13) of the frame (1) through the pressing plate notch (512) and is supported on the upper planes of the two frame side plates (13) by virtue of the pressing plate roller (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 notch (512), and the pressing plate rope seat (55) is positioned above the pressing plate notch (512); the steel wire rope pulling plate (54) is arranged on the right end face of the extrusion plate (51);
The two pressing devices (6) are symmetrically arranged at the left side of the frame (1) along the front-back direction; the compaction winches (61) are respectively arranged at the front side and the rear side of the left platform (11) of the frame (1) and are positioned at the left side of the frame side plate (13); the steel wire ropes (64) are led out from the compaction winches (61) and then respectively pass through the movable pulley frames (53) on the left side surface of the extrusion plate (51) and the fixed pulley frames (12) on the outer side surface of the frame side plate (13) to be fixed on the frame side plate (13); the tension sensors (63) are respectively arranged at the positions of the steel wire ropes led out from the fixed pulley frames (12);
The first rectangular groove (311) on the inner side surface of the fixing plate (31) and 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), and the second rectangular convex edge (48') on the right side surface of the filter pressing frame (40) and the first rectangular convex edge (511) on the inner side surface of the extrusion plate (51) are all closed rectangular rings which have the same size and are matched with each other;
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 is connected to the steel wire rope pulling plate (54) on the right side surface of the extrusion plate (51); the connecting ropes (73) are provided with two groups, and the two groups respectively penetrate through the filter frame earrings (404) of each filter pressing frame (40) and then connect the filter pressing frames (40) together in series; the left end of the connecting rope (73) is locked to a fixed plate rope seat (32) of the fixed plate (31), and the right end of the connecting rope is locked to a pressing plate rope seat (55) of the pressing plate (51).
2. Slurry filter press according to claim 1, characterized in that the depth dimension of the first rectangular groove (311) on the inner side of the fixed plate (31) and the second rectangular groove (48) on the left side of the press frame (40) are both L1, the height dimension of the second rectangular convex edge (48') on the left side of the press frame (40) and the first rectangular convex edge (511) on the inner side of the pressing plate (51) are both L2, wherein L1-l2 = 10-15mm.
3. A slurry filter press according to claim 1, characterized in that the distance from the bottom of the filter frame roller (42) at both sides of each filter frame (40) in the filter press assembly (4) to the upper side plate plane (131) of the frame side plate (13) is equal to the distance from the bottom of the press plate roller (52) at the press plate notch (512) of the press plate (51) of the press plate unit (5) to the upper side plate plane (131) of the frame side plate (13).
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| CN202010152456.5A CN111138062B (en) | 2020-03-06 | 2020-03-06 | Mud filter press |
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| CN202010152456.5A CN111138062B (en) | 2020-03-06 | 2020-03-06 | Mud filter press |
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| CN111138062B true CN111138062B (en) | 2024-05-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113494253B (en) * | 2021-07-28 | 2022-07-22 | 中铁二十二局集团第一工程有限公司 | High-efficient mud treatment facility |
| 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 |
| 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 |
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| CN111138062A (en) | 2020-05-12 |
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