CN216909296U

CN216909296U - Ultrahigh-pressure elastic squeezer filter frame with oil recovery function and ultra-rigidity

Info

Publication number: CN216909296U
Application number: CN202122479720.9U
Authority: CN
Inventors: 孙刚范; 刘道广; 纪智荣; 汪祥飞; 胡军驰
Original assignee: Shanghai Techase Environment Protection Co ltd
Current assignee: Shanghai Techase Environment Protection Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-07-08
Anticipated expiration: 2031-10-14

Abstract

The utility model is suitable for the technical field of deep dehydration of sludge, and provides an ultra-rigid and oil-recovery-function-carrying ultra-high pressure elastic squeezer filter frame, which comprises: the filter plate comprises filter plates, wherein ear shoulders are arranged on two sides of each filter plate, a single-action small hydraulic cylinder is arranged between the filter plates, and a push plate and a bearing plate are respectively arranged on the filter plates at two ends of the single-action small hydraulic cylinder; the cloth hanging pin is installed on the push plate and the bearing plate, an exhaust valve is arranged on the side part of the push plate, a hollow bolt is installed on the bearing plate, a recovery oil pipe is connected onto the hollow bolt, and an oil inlet pipe joint is arranged on the hollow bolt; the connecting plate is arranged on the pushing plate; and the T-shaped sealing strip is arranged on the bearing plate. The maintenance cost of the equipment is reduced; the stability of the whole equipment is improved, and the use durability is improved; the use efficiency of the equipment is improved; the service life of the hydraulic sealing ring of the small hydraulic cylinder is prolonged.

Description

Ultrahigh-pressure elastic squeezer filter frame with super-rigidity and oil recovery function

Technical Field

The utility model belongs to the technical field of deep dehydration of sludge, and particularly relates to an ultrahigh-pressure elastic squeezer filter frame with an oil recovery function and an ultrahigh rigidity.

Background

The ultrahigh pressure elastic squeezer is a high-efficiency plate frame filter pressing device, and is formed by sequentially arranging a plurality of groups of filter plate frames, and discharging water in sludge through filter cloth by extruding the filter plate frames so as to achieve the aim of dewatering. The traditional ultrahigh pressure elastic squeezer usually adopts a large oil cylinder (plunger cylinder) to provide squeezing force, the filter plate frame of the squeezer provides sealing force by arranging a plurality of springs and a plurality of guide sleeves, shafts or a plurality of small hydraulic cylinders around a fixed plate frame (bearing plate frame) and a movable plate frame, and the volume of the filter chamber is reduced by completely compressing the springs or reducing the stroke of the hydraulic cylinders so as to realize the extrusion of materials and achieve the aim of dehydration.

When the ultrahigh pressure elastic squeezer works, the ultrahigh pressure elastic squeezer is contacted with filtrate of a material by a compression spring and is always in a critical high-stress, high-humidity and high-corrosion environment; due to the action of critical high stress, micro-cracks are generated on the surface of the compression spring; the aging of the spring is accelerated in a high-humidity and high-corrosion environment, the spring has a normal service life of dozens of thousands of times, the actual service life is only 1-2 thousands of times, and the equipment maintenance cost is too high.

The filter plate frame with the sealing force of the adjacent filter plate frames is provided by a small hydraulic cylinder: structurally, the small hydraulic cylinder is arranged on a fixed plate frame (a bearing plate frame), and the end part of a piston rod is arranged on a movable plate frame; the main pressure is often over hundreds of tons or thousands of tons when materials are squeezed, and the filter plate frame bears dozens of tons or hundreds of tons of lateral force due to the long serial connection length of a plurality of plate frames of the equipment, processing errors and the original factors of unbalance of the materials and is distributed on a piston rod of each small hydraulic cylinder, and the lateral force which can be born by the small hydraulic cylinder is far exceeded, so that the piston rod is strained or sealed to lose efficacy, and the hydraulic cylinder leaks; so that the whole equipment generates the phenomenon of pressure lever instability and the failure rate is increased. The hydraulic cylinder and the compression spring are in a high-humidity and high-corrosion environment, the surface of the piston rod is easy to corrode, pitting corrosion is formed, and the sealing of the hydraulic cylinder fails.

After a filter plate frame with the sealing force of adjacent filter plate frames provided by the conventional small hydraulic cylinder is used for a certain time, the sealing failure and oil leakage are caused by the faults of the aging of a sealing ring of the small hydraulic cylinder, the corrosion and strain of a piston rod, the deformation of a cylinder sleeve and the like, and the secondary pollution is caused by the loss of oil along with the filtrate of materials; increasing the burden of water treatment for users. In addition, as the sealing ring is aged and seeps oil, but the function of the whole machine can also be used, a user has to frequently add supplementary hydraulic oil or replace a sealing part to maintain the normal operation of the equipment, so that the operation cost is greatly increased and the utilization efficiency of the sealing part is lower.

The conventional small hydraulic cylinder provides a filter plate frame with the sealing force of the adjacent filter plate frames: the oil pressure intensity of the small hydraulic cylinder is always kept at a rated value through an overflow valve, so that the sealing ring of the small hydraulic cylinder is always in a high-pressure state, and the service life of the hydraulic sealing ring is shortened.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide an ultrahigh pressure elastic squeezer filter frame with an ultrahigh rigidity and an oil recovery function, and aims to solve the problem that the existing equipment is too high in maintenance cost; the surface of the piston rod is easy to corrode to form pitting corrosion, so that the sealing of the hydraulic cylinder fails; the operation cost is greatly increased and the utilization efficiency of the sealing part is lower; the service life of the hydraulic sealing ring is low.

The embodiment of the utility model is realized in such a way that the super-rigid super-high pressure elastic squeezer filter frame with the oil recovery function comprises:

the filter plate comprises filter plates, wherein ear shoulders are arranged on two sides of each filter plate, a single-action small hydraulic cylinder is arranged between the filter plates, and a pushing plate and a bearing plate are respectively arranged on the filter plates at two ends of the single-action small hydraulic cylinder;

the cloth hanging pin is installed on the push plate and the bearing plate, an exhaust valve is arranged on the side part of the push plate, a hollow bolt is installed on the bearing plate, a recovery oil pipe is connected onto the hollow bolt, and an oil inlet pipe joint is arranged on the hollow bolt;

the connecting plate is arranged on the pushing plate and used for connecting the pushing plate and the bearing plate;

and the T-shaped sealing strip is arranged on the bearing plate and used for preventing the filter cloth from being cut and improving the sealing effect.

Preferably, a sliding groove is formed in the connecting plate, a connecting bolt is installed on the bearing plate, and the connecting bolt is matched with the sliding groove.

Preferably, the single-acting small hydraulic cylinder includes:

the hydraulic cylinder seat is installed on the pushing plate, a cylinder body is installed inside the hydraulic cylinder seat, and a piston rod is arranged inside the cylinder body in a matched mode.

Preferably, a dust ring for a shaft is arranged between the cylinder body and the piston rod, and a sealing ring for a high-pressure liquid cylinder hole is arranged on the inner wall of the cylinder body;

and the oil cylinder seat O-shaped sealing ring is arranged between the oil cylinder seat and the pushing plate, and a cylinder body O-shaped sealing ring is arranged in the oil cylinder seat.

Preferably, the single-acting small hydraulic cylinders are uniformly distributed on the pushing plate at equal intervals, and the pushing plate is provided with a pushing plate oil passage and a mounting blind hole.

Preferably, a hydraulic cylinder oil passage is arranged in the hydraulic cylinder seat, and the hydraulic cylinder oil passage is matched with the pushing plate oil passage.

Preferably, the cylinder body is connected with the hydraulic cylinder seat through threads, and the hydraulic cylinder seat is provided with a waterproof ring.

The ultrahigh pressure elastic squeezer filter frame with the super-rigidity and oil recovery function provided by the embodiment of the utility model has the following beneficial effects:

1. the filter plate frame solves the technical problem that the filter plate frame with the sealing force of the adjacent filter plate frames provided by the compression springs causes overhigh equipment maintenance cost.

2. The problem that the small hydraulic cylinder provides the sealing force of the adjacent filter plate frames is solved, the small hydraulic cylinder of the filter plate frames can bear the lateral force, the piston rod is strained or the sealing is failed, and the hydraulic cylinder leaks; so that the whole equipment generates the phenomenon of pressure bar instability, and simultaneously solves the technical problems that the surface of the piston rod is easy to corrode, pitting corrosion is formed, and the sealing of the hydraulic cylinder fails.

3. The filter plate frame solves the technical problems that the filter plate frame with the sealing force of the adjacent filter plate frames provided by the small hydraulic cylinder greatly increases the operation cost caused by oil leakage and the utilization efficiency of the sealing part is lower.

4. The service life of the hydraulic sealing ring of the small hydraulic cylinder is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a super-rigid, oil-recovery-function ultrahigh-pressure elastic press filter frame according to the present invention;

FIG. 2 is a schematic top view of the overall structure of a block diagram 1 of an ultra-rigid, ultra-high pressure elastic press with oil recovery of the present invention;

FIG. 3 is a sectional view A-A of a block diagram 2 of an ultra-high pressure elastic press with oil recovery function according to the present invention;

FIG. 4 is a sectional view B-B of a block diagram 1 of an ultra-rigid, ultra-high pressure elastic press with oil recovery function according to the present invention;

FIG. 5 is a partial view I of a block diagram 4 of an ultra-high pressure elastic press with oil recovery according to the present invention;

FIG. 6 is a C-C cut-away view of a block diagram 2 of an ultra-high pressure elastic press with oil recovery according to the present invention;

FIG. 7 is a schematic view of the connection structure of the bearing plate and the pushing plate of the ultra-rigid, oil-recycling ultrahigh-pressure elastic press filter frame of the present invention;

FIG. 8 is a structural schematic view of a single-acting small hydraulic cylinder of a super-rigid filtering frame of an ultrahigh pressure elastic squeezer with an oil recovery function according to the utility model;

fig. 9 is a schematic diagram of the overall structure of an ultra-rigid, oil recovery function-carrying ultra-high pressure elastic press filter frame according to the present invention.

In the drawings: 1-ear shoulder; 2-a push plate; 3-hanging a cloth pin; 4-recovering the oil pipe; 5-a hollow bolt; 6-filter plate; 7-an exhaust valve; 8-connecting plates; 9-oil inlet pipe joint; 10-a pressure bearing plate; 11-single-acting small hydraulic cylinder; 12-large gap packing seal ring; 13-T shaped sealing strips; 14-push plate oil channel; 15-hydraulic cylinder oil duct; 16-installing blind holes; 17-a sliding groove; 18-connecting bolts; 111-a piston rod; 112-dust ring for shaft; 113-sealing ring for high pressure cylinder bore; 114-cylinder body; 115-waterproof ring; 116-a cylinder base; 117-cylinder seat O-ring seal; 118-cylinder O-ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 to 9, in the embodiment of the present invention, the ultra-rigid, ultra-high pressure elastic press frame with oil recovery function includes:

the device comprises filter plates 6, wherein ear shoulders 1 are respectively arranged on two sides of each filter plate 6, a single-action small hydraulic cylinder 11 is arranged between the filter plates 6, and a push plate 2 and a bearing plate 10 are respectively arranged on the filter plates at two ends of the single-action small hydraulic cylinder 11;

the cloth hanging pin 3 is installed on the pushing plate 2 and the bearing plate 10, an exhaust valve is arranged on the side portion of the pushing plate 2, a hollow bolt 5 is installed on the bearing plate 10, a recovery oil pipe 4 is connected to the hollow bolt 5, and an oil inlet pipe connector 9 is arranged on the hollow bolt 5;

the connecting plate 8 is arranged on the pushing plate 2 and is used for connecting the pushing plate 2 and the bearing plate 10;

and the T-shaped sealing strip 13 is arranged on the bearing plate 10 and used for preventing the filter cloth from being cut and improving the sealing effect.

As shown in fig. 1 to 7, an ultra-rigid, ultra-high pressure elastic press filter frame with oil recovery function is composed of: the device comprises two sets of ear shoulders 1, a push plate 2, a plurality of cloth hanging pins 3, a set of recovered oil pipes 4, a plurality of hollow bolts 5, two filter plates 6, an exhaust valve 7, four or more than four connecting plates 8, an oil inlet pipe joint 9, a pressure bearing plate 10, twenty-eight single-action small hydraulic cylinders 11, twenty-eight large-gap filler sealing rings 12 and two sets of T-shaped sealing strips 13.

As shown in fig. 4, two filter plates 6 with the function of supporting filter cloth are fixedly arranged on two sides inside the bearing plate 10, and T-shaped sealing strips 13 in an embedded installation form are arranged on the periphery of the inner side sealing surface of the pushing plate 2 and the bearing plate 10, so that the filter cloth can be prevented from being cut, the sealing effect can be improved, and the service life of the filter cloth can be prolonged.

As shown in fig. 1 to 7, in the embodiment of the present invention, a sliding groove 17 is formed on the connecting plate 8, a connecting bolt 18 is installed on the pressure bearing plate 10, and the connecting bolt 18 is matched with the sliding groove 17.

As shown in fig. 7, the pushing plate 2 and the bearing plate 10 are connected by a connecting plate 8 fixed on the pushing plate 2, the connecting plate 8 is provided with a sliding groove, and a bolt fixed on the bearing plate 10 passes through the sliding groove and can freely move along the sliding groove, thereby preventing the pushing plate 2 and the bearing plate 10 from separating.

As shown in fig. 8, in the embodiment of the present invention, the single-acting small hydraulic cylinder includes:

and a cylinder seat 116 mounted on the pushing plate 2, wherein a cylinder body 114 is mounted inside the cylinder seat 116, and a piston rod 111 is arranged inside the cylinder body 114 in a matching manner.

As shown in fig. 3, the positioning sliding of the pushing plate 2 and the bearing plate 10 is positioned by the outer wall of the cylinder body 114, when the whole ultrahigh-pressure elastic press works at high pressure, the lateral force generated by the stable pressing rod of a plurality of adjacent filter frames does not act on the piston rod 11, but acts on the outer wall of the cylinder body 114, because the outer diameter of the hydraulic cylinder body is far larger than the diameter of the piston rod 11, the bending strength is dozens of times of that of the piston rod 11, twenty-four or more single-acting small cylinder bodies 114 of the hydraulic cylinder 11 act simultaneously, the resistance of the whole filter frame to the lateral force is improved by more than dozens of times, and the phenomenon of the instability of the pressing rod generated by the filter plate group of the ultrahigh-pressure elastic press is solved; meanwhile, the piston rod 111 is not acted by lateral force, and the problem that the piston rod 11 is pulled by the lateral stress is solved.

As shown in fig. 8, in the embodiment of the present invention, a shaft dust seal 112 is provided between the cylinder 114 and the piston rod 111, and a high-pressure cylinder hole seal 113 is provided on an inner wall of the cylinder 114;

and a cylinder base O-ring 117 provided between the cylinder base 116 and the push plate 2, and a cylinder body O-ring 118 provided inside the cylinder base 116.

As shown in fig. 8, the single-acting small hydraulic cylinder 11 is composed of a piston rod 111, a shaft wiper 112, a high-pressure cylinder hole seal 113, a cylinder body 114, a waterproof ring 115, a cylinder base 116, a cylinder base O-ring 117, and a cylinder body O-ring 118.

As shown in fig. 3 and 6, twenty-eight or more single-acting small hydraulic cylinders 11 are uniformly, symmetrically and fixedly arranged around the push plate 2; the pushing plate 2 is provided with an oil passage and a single-action small hydraulic cylinder 11 mounting blind hole; an oil cylinder seat O-shaped sealing ring 117 is arranged between the single-action small hydraulic cylinder 11 and the mounting blind hole of the pushing plate 2, and the function of preventing hydraulic oil from leaking is achieved.

As shown in fig. 3 and 6, in the embodiment of the present invention, the single-acting small hydraulic cylinders 11 are uniformly distributed on the push plate 2 at equal intervals, and the push plate 2 is provided with a push plate oil passage 14 and a mounting blind hole 16.

As shown in fig. 3, the bearing plate 10 is provided with a blind installation hole 16 for inserting the single-acting small hydraulic cylinder 11; the small single-action hydraulic cylinder 11 can slide in a reciprocating manner in the inserting installation blind hole 16 conveniently; the opening of the mounting blind hole 16 is provided with a large-gap packing seal ring 12 for sealing; when the single-acting small hydraulic cylinder 11 has the phenomenon of leaking hydraulic oil during reciprocating motion, the leaked hydraulic oil can be stored in the mounting blind hole 16 and flows out and collected to the hydraulic oil tank through the hollow bolt 5 and the oil path of the recovery oil pipe 4 mounted around the pressure bearing plate 10. The service life of the sealing ring 113 for the high-pressure hydraulic cylinder hole of the hydraulic cylinder can be prolonged, and the hydraulic oil loss is reduced for customers. The corrosion effect of water on the surface of the piston rod 111 is solved.

As shown in fig. 6 and 8, in the embodiment of the present invention, the cylinder block 116 is provided therein with a cylinder oil passage 15, and the cylinder oil passage 15 and the pushing plate oil passage 14 are engaged with each other.

As shown in fig. 7 and 8, the cylinder block 116 of the single-acting small cylinder 11 is provided with a cylinder oil passage 15, and the attached oil passage and the pressing plate oil passage 14 of the pressing plate 2 communicate with each other. The cylinder body 114 and the hydraulic cylinder seat 116 are fixed by screw thread, and a waterproof ring 115 and a cylinder body O-shaped sealing ring 118 are arranged between the cylinder body 114 and the hydraulic cylinder seat to play the roles of screw thread waterproof and hydraulic oil sealing.

As shown in fig. 7 and 8, the filter frames work in such a way that hydraulic oil enters the push plate oil passage 14 of the push plate 2 from an oil inlet pipe joint 9 and is distributed to the hydraulic cylinder seat 116 to be provided with hydraulic cylinder oil passages, so as to push the piston rod 111 to eject out and push the pressure-bearing plate 10 and the push plate 2 to expand to provide constant sealing pressure for the adjacent filter frames.

As shown in fig. 8, in the embodiment of the present invention, the cylinder body 114 is connected to the cylinder base 116 through a screw, and the cylinder base 116 is provided with a waterproof ring 115.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an ultra-high pressure elasticity squeezer filter frame of super rigidity, oily function of retrieving which characterized in that, ultra-high pressure elasticity squeezer filter frame of super rigidity, oily function of retrieving includes:

the filter plate comprises filter plates, wherein ear shoulders are arranged on two sides of each filter plate, a single-action small hydraulic cylinder is arranged between the filter plates, and a push plate and a bearing plate are respectively arranged on the filter plates at two ends of the single-action small hydraulic cylinder;

2. The ultra-rigid, ultra-high pressure elastic press filter frame with oil recovery function according to claim 1, wherein a connecting plate is mounted on the pushing plate for connecting the pushing plate and the bearing plate; the connecting plate is provided with a sliding groove, the bearing plate is provided with a connecting bolt, and the connecting bolt is matched with the sliding groove.

3. The ultra-rigid, oil recovery capable ultra-high pressure elastomeric press filter frame of claim 1, wherein said single acting small hydraulic cylinder comprises:

the hydraulic cylinder base is installed on the pushing plate, a cylinder body is installed inside the hydraulic cylinder base, and a piston rod is arranged inside the cylinder body in a matched mode.

4. The ultra-rigid and ultra-high pressure elastic squeezer filter frame with oil recovery function as claimed in claim 3, wherein a dust ring for shaft is arranged between the cylinder body and the piston rod, and a sealing ring for high pressure liquid cylinder hole is arranged on the inner wall of the cylinder body;

5. The ultra-rigid and ultra-high pressure elastic squeezer filter frame with oil recovery function according to claim 3, wherein the single-acting small hydraulic cylinders are uniformly distributed on the pushing plate at equal distances, and the pushing plate is provided with a pushing plate oil passage and a mounting blind hole.

6. The ultra-rigid and ultra-high pressure elastic filter frame for the squeezer with the oil recovery function according to claim 5, wherein a hydraulic cylinder oil passage is arranged inside the hydraulic cylinder base, and the hydraulic cylinder oil passage is matched with the pushing plate oil passage.

7. The ultra-rigid and ultra-high pressure elastic squeezer filter frame with oil recovery function according to claim 3, wherein the cylinder body is connected with the hydraulic cylinder base through threads, and the hydraulic cylinder base is provided with a waterproof ring.