CN217391686U - Circular filter press - Google Patents

Abstract

The utility model relates to a circular pressure filter, include the host computer seat, connect the subassembly that compresses tightly of host computer seat upper end and connect the host computer seat and compress tightly the filter unit between the subassembly, the filter unit includes a plurality of groups in vertical direction superimposed filter assembly, it is flexible between being used for driving filter assembly to compress tightly the subassembly, filter assembly includes board deflector roll, annular filter cloth, still include by bearing plate and circular diaphragm cooperation formation the extrusion cavity, connect in extrude the material chamber of cavity lower extreme and connect in the collection liquid board of material chamber lower extreme, circular diaphragm and material chamber all set up to circular structure. The circular filter press has strong pressure bearing capacity and uniform stress deformation, solves the problems of untight pressing and material spraying caused by deformation, reduces the maintenance times and reduces the operation cost; further, the circular material cavity has the advantages of being simple and convenient to process, short in period and the like, washing dead corners cannot occur during washing, and the material cavity is clean and thorough to wash.

Description

Circular filter press

Technical Field

The utility model relates to a pressure filter technical field specifically is a circular pressure filter.

Background

The filter press occupies an important position in the field of solid-liquid separation, and has a position that other solid-liquid separation equipment cannot replace, in particular to a vertical filter press which has the advantages of high working pressure, small floor area, high automation degree, low product moisture, simple operation and convenient maintenance, and is widely applied to the fields of mines, metallurgy, chemical industry, environmental protection, medicines, biology and the like. The material chamber that current vertical pressure filter adopted rectangle frame column structure more, in the production manufacture process, must mill with the longmen, its sheet layer spare part processing difficulty, require the precision high, the processing cycle is long, consuming time power, lead to the cost on the high side, and the pressure-bearing effect of square frame column structure is not optimistic, lead to sheet layer spare part to appear warping easily, it is not tight to press, spout the material, the fracture problem even, especially the equipment of multi-cylinder multi-sheet layer, the equipment that still appears going up and down asynchronous and lead to is unusual very easily, the normal operating of production has seriously been influenced, cause unnecessary economic loss.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circular pressure filter can solve the technical problem who mentions in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a circular pressure filter, includes the host computer seat, connects the subassembly that compresses tightly of host computer seat upper end and connects the filter unit between host computer seat and the compressing assembly, the filter unit includes a plurality of groups in vertical direction superimposed filter assembly, it is flexible between the filter assembly that compresses tightly to be used for driving a plurality of groups, the filter assembly includes board deflector roll, annular filter cloth, still include by bearing plate and circular diaphragm cooperation formation the extrusion cavity, connect in the material chamber of extrusion cavity lower extreme and connect in the album liquid board of material chamber lower extreme, the annular filter cloth is S-shaped winding distribution between each filter assembly' S board deflector roll, via being between material chamber and the album liquid board, circular diaphragm and material chamber all set up to circular structure.

As a preferred scheme, the lower surface of the material cavity is connected with a sealing ring.

Preferably, the compressing assembly includes a guide post connected to an upper end of the main housing, and a movable platen slidably connected to the guide post, the movable platen being disposed above the filter unit, the movable platen being connected to the filter assembly at a top end of the filter unit.

Preferably, the pressing assembly further comprises a cylinder base connected to the upper end of the connecting guide post, a hydraulic cylinder is connected to the middle of the cylinder base, and the movable platen is connected to a piston rod end of the hydraulic cylinder.

Preferably, the number of the connecting guide columns is four, and the four connecting guide columns are respectively connected to four corners of the main machine base.

Preferably, the pressing assembly further comprises a locking portion for locking the position of the guide pillar and the movable platen. The locking part comprises a locking block arranged on the movable platen and a wedge-shaped opening arranged on the connecting guide pillar, and the locking block is of a wedge-shaped structure and is in sliding fit with the wedge-shaped opening.

Preferably, the locking part further comprises a locking cylinder connected to the movable platen, and a piston rod end of the locking cylinder is connected with the locking block.

Preferably, the circular diaphragm is made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that:

1) compared with the traditional filter, the round filter press provided by the utility model has the advantages that the round diaphragm is arranged, so that the bearing capacity is strong, the stress deformation is uniform, the problems of untight pressing, material spraying and even breakage caused by deformation are solved, the service lives of the material cavity and the diaphragm are greatly prolonged, the maintenance frequency of the equipment is reduced, and the operation cost is reduced; the round material cavity has the advantages of simple and convenient processing, short period and the like, and the round material cavity does not have washing dead corners during washing, so that the washing is cleaner and more thorough;

2) in the pressing component, a single hydraulic cylinder is arranged in the right middle of the cylinder seat, and compared with the traditional multi-cylinder design, the single cylinder has the advantages of simple structure and stable operation, and the phenomenon of multi-cylinder asynchronism can be avoided;

3) through setting up wedge-shaped mouth and corresponding wedge-shaped latch segment cooperation and locking, avoided pressing not tight problem because of the deformation of filter assembly medium plate layer and the ageing production of sealing member.

Drawings

FIG. 1 is a schematic view of the overall structure of the circular filter press of the present invention;

fig. 2 is a top view of the circular filter press of the present invention;

FIG. 3 is a schematic view of the filter assembly of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3 in the direction C-C;

fig. 5 is a schematic structural view of the material chamber of the present invention;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

fig. 7 is a schematic structural view of the circular diaphragm of the present invention;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

fig. 9 is a schematic view of the open state of the locking portion of the present invention;

fig. 10 is a schematic view of the closed state of the locking part of the present invention.

The various reference numbers in the figures mean:

1. a main machine base; 21. a filter assembly; 22. a plate guide roller; 23. a filter cloth scraper; 24. a guide roller scraper; 25. a guide roller seat; 26. secondary driving; 3. a movable platen; 4. connecting a guide post; 5. a cylinder base; 6. a hydraulic cylinder; 71. a tension frame; 72. a tension roller; 73. a tension drive section; 8. a machine guide roller; 91. a deviation rectifying roller; 92. a deviation rectifying cylinder; 10. annular filter cloth; 11. a drive roller; 12. a main drive seat; 13. a material collecting box; 141. cleaning the tank; 142. a high pressure pipe; 15. hanging the plate; 161. a locking block; 162. locking the air cylinder; 211. a liquid collection plate; 212. a pressure bearing plate; 213. a liquid outlet nozzle; 214. an extrusion nozzle; 215. a material cavity; 216. a seal ring; 217. a circular diaphragm; 218. a feeding nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-2, the present embodiment discloses a circular filter press, which comprises a main frame 1, a pressing assembly connected to the upper end of the main frame 1, and a filter unit connected between the main frame 1 and the pressing assembly.

Referring to fig. 3-8, main engine base 1 sets up to vertical square frame structure, and the filter unit includes a plurality of groups in the superimposed filter assembly 21 of vertical direction, and adjacent two sets of filter assembly 21 link together by link plate 15, can realize the flexible between the filter assembly 21, sets up in the filter assembly 21 fixed connection of bottom to main engine base 1. When the filter unit is in the open state, the filter assemblies 21 are in the extended state, and every two groups of filter assemblies 21 form an equal interval. The filter assemblies 21 further comprise plate guide rollers 22 connected through guide roller seats 25, only one end of each group of filter assemblies 21 is fixed with the guide roller seat 25, the guide roller seats 25 of the adjacent two groups of filter assemblies 21 are arranged left and right alternately, the plate guide rollers 22 are arranged on the guide roller seats 25, and the annular filter cloth 10 is wound and distributed in an S shape among the plate guide rollers 22 by arranging the annular filter cloth 10 on the plate guide rollers 22. The filter assembly 21 comprises a pressure bearing plate 212 connected to the guide roller seat 25, a circular diaphragm 217 arranged below the pressure bearing plate 212, and a material cavity 215 connected to the lower end of the circular diaphragm 217, a liquid collecting plate 211 is connected to the lower end of the material cavity 215, the liquid collecting plate 211 is used for collecting filtered filtrate and discharging the filtered filtrate through a liquid outlet nozzle 213 arranged on one side of the liquid collecting plate 211, and the liquid collecting plate 211 arranged in the bottom filter assembly 21 is fixedly connected to the main machine seat 1. The annular filter cloth 10 is wound and distributed between the material chamber 215 and the liquid collecting plate 211 of each filter assembly 21. Furthermore, an annular groove is formed in the upper end face of the material cavity 215, an annular boss is correspondingly arranged on the lower end face of the circular diaphragm 217, the circular diaphragm 217 is tightly pressed onto the pressure bearing plate 212 through the cooperation between the annular boss and the annular groove, a closed extrusion cavity is formed between the pressure bearing plate 212 and the circular diaphragm 217, an extrusion nozzle 214 is arranged on one side of the pressure bearing plate 212, when high-pressure media enter through the extrusion nozzle 214, the circular diaphragm 217 is pressed and expanded to extrude the material cavity 215, and filtered liquid enters the liquid collecting plate 211 through the annular filter cloth 10 and is discharged from the liquid outlet nozzle 213. Furthermore, a material inlet nozzle 218 for slurry to enter is arranged on one side of the material cavity 215, an annular dovetail groove is arranged on the lower surface of the material cavity 215 and used for fixing the sealing ring 216, when the filtering unit is closed, a sealed filtering cavity is formed among the extrusion cavity, the material cavity 215, the sealing ring 216 and the liquid collecting plate 211, and under the action of pressure, the cavity realizes solid-liquid separation on the entering material. In the embodiment, the circular diaphragm 217 is preferably made of rubber with good elasticity, and by particularly arranging the circular diaphragm 217, the circular diaphragm is uniformly stressed, stretched and deformed, and the phenomenon of stress concentration at corner positions can not be generated, so that the service life of the circular diaphragm is greatly prolonged; meanwhile, the extrusion force of the circular diaphragm 217 on the materials is uniform and stable, the thickness of the generated filter cake is uniform, and the water content is consistent. Further, in this embodiment, material chamber 215 also sets up to circular structure, and the cross section material chamber 215 of same structure, the bearing capacity and the anti deformability of circular structure are superior to traditional square structure far away, and circular material chamber 215 can use lathe direct processing simultaneously, have advantages such as processing is simple convenient, and the cycle is short, and in addition, circular material chamber 215 can not appear washing dead angle when the washing, washs cleanly thoroughly more.

Referring to fig. 1, the pressing assembly includes a cylinder base 5 connected to the upper end of the main machine base 1 through four connecting guide pillars 4, a hydraulic cylinder 6 connected to the cylinder base 5, and a movable platen 3 connected to the piston rod end of the hydraulic cylinder 6, the movable platen 3 is disposed above the filtering unit, the connecting guide pillars 4 are respectively fixedly connected to four corners of the cylinder base 5 and the main machine base 1, and the cylinder base 5, the connecting guide pillars 4 and the main machine base 1 form a vertical rectangular parallelepiped frame structure. Wherein four connecting guide columns 4 are connected to the main frame base 1 through four corners of the movable platen 3, the movable platen 3 is slidably connected to the connecting guide columns 4, the movable platen 3 is driven by the hydraulic cylinder 6 to reciprocate in the vertical direction along the connecting guide columns 4, and further, the movable platen 3 is connected to the filter assembly 21 at the top end of the filter unit, i.e., the pressure-bearing plate 212, so that the open and closed states of the filter unit are controlled by the hydraulic cylinder 6 through the movable platen 3. Furthermore, in the embodiment, the hydraulic cylinder 6 is connected to the middle of the cylinder base 5, so that compared with the traditional multi-cylinder design, a single cylinder has the advantages of simple structure and stable operation, and the phenomenon of multi-cylinder asynchronization can be avoided.

In one embodiment, the pressing assembly further includes a locking portion, referring to fig. 9 and 10, the locking portion further includes a locking block 161 disposed at a four-corner of the movable platen 3 and facing the connecting column 4, and a wedge-shaped opening disposed on the connecting column 4 and corresponding to the locking block 161, the locking block 161 is in a wedge-shaped structure, and is driven by a locking cylinder 162 connected to the movable platen 3 to move towards the connecting column 4, and the locking block 161 is slidably engaged with the wedge-shaped opening. When the filter unit is closed, the locking cylinder 162 drives the locking block 161 to insert along the wedge-shaped surface on the upper part of the wedge-shaped opening, the locking block 161 moves downwards along the vertical direction due to the acting force of the wedge-shaped surface, and meanwhile, the movable pressing plate 3 is pushed to move downwards, so that the function of automatically pressing the filter unit is realized, and the sealing effect of the filter assembly 21 is improved. Meanwhile, the contact surfaces of the wedge-shaped opening and the wedge-shaped block realize a self-locking state, and the pressure of the filter assembly 21 is ensured. Further, the length of the locking block 161 is greater than the length of the wedge-shaped opening, and this design provides enough margin for the locking block 161 to avoid the problem of the loose pressure caused by the deformation of the plate layer and the aging of the sealing member in the filter assembly 21.

In another embodiment, when the number of filter assemblies 21 is larger, part of the plate guide rollers 22 may be adjusted to be the secondary drive 26 to increase the overall driving force of the endless filter cloth 10.

In another embodiment, a filter cloth scraper 23 is arranged at the lower right side of the left side plate guide roller 22, which is perpendicular to the running direction of the annular filter cloth 10, and correspondingly, a filter cloth scraper 23 is arranged at the lower left side of the right side plate guide roller 22; a guide roller scraper 24 is disposed on the right side of the left side plate guide roller 22 and radially contacts the outer surface of the plate guide roller 22, and correspondingly, a guide roller scraper 24 is disposed on the left side of the right side plate guide roller 22.

It can be understood that, in order to ensure the normal operation of the circular filter press and the orderly connection among the components, the filter press of the present invention is further provided with a cleaning tank 141, a material collecting tank 13 and a main driving seat 12 beside the main machine seat 1 in sequence, the main driving seat 12 is connected with a driving roller 11, a tensioning frame 71 is arranged above the main driving seat 12, one side of the tensioning frame 71 is provided with a tensioning driving part 73 and a tensioning roller 72, and the tensioning roller 72 can make the whole tensioning roller 72 move vertically on the tensioning frame 71 through the tensioning driving part 73; the side end of the tensioning roller 72 is provided with a deviation rectifying cylinder 92 and a deviation rectifying roller 91, one end of the deviation rectifying roller 91 is rotatably connected with the tensioning frame 71, one end of the deviation rectifying cylinder 92 is hinged with the tensioning frame 71, the piston rod end of the deviation rectifying cylinder 92 is connected with the other end of the deviation rectifying roller 91, the deviation rectifying roller 91 can rotate along the rotating end through the movement of the deviation rectifying cylinder 92, and the deviation rectifying roller 91 is enabled to form three postures of horizontal posture, upward inclination posture and downward inclination posture. One end of the annular filter cloth 10 is changed in direction by the machine guide roller 8, then sequentially wound by the driving roller 11, the deviation correcting roller 91 and the tensioning roller 72, changed in direction by the machine guide roller 8, and then enters the filtering unit, and in the filtering unit, sequentially wound in an S shape by all the plate guide rollers 22, enters the cleaning box 141 for cleaning and regeneration, and finally is connected with the other end to form a closed loop structure.

For the sake of understanding, the working principle of the circular filter press of the present invention is described as follows: during filter pressing operation, the annular filter cloth 10 is loosened, the filtering unit is closed, the locking block 161 is locked, a material is pumped into a material cavity 215 of the filtering component 21 through a material inlet pipe by a material inlet nozzle 218 by a material inlet pump, liquid passes through the annular filter cloth 10 and is collected by the liquid collecting plate 211 and discharged by the liquid outlet nozzle 213 under the action of pumping pressure, solid particles are intercepted by the annular filter cloth 10 to form a filter cake, then a high-pressure medium enters the extrusion cavity from the extrusion nozzle 214, the circular diaphragm 217 is expanded under pressure to form mechanical extrusion on the filter cake, then washing liquid enters the material cavity 215 from the material inlet nozzle 218 to wash the squeezed filter cake, then the high-pressure medium enters the extrusion cavity from the extrusion nozzle 214 to perform mechanical extrusion on the filter cake, and finally high-pressure air enters the material cavity 215 from the material inlet nozzle 218 to perform penetrating air drying on the filter cake. The filtering unit is opened, the annular filtering cloth 10 is tensioned, the driving roller 11 drives the annular filtering cloth 10 to operate, the filter cake is discharged towards two sides, and the annular filtering cloth 10 enters the next filtering cycle after being cleaned and regenerated.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a circular filter press, its characterized in that includes host computer seat (1), connects the subassembly that compresses tightly of host computer seat (1) upper end and connects in host computer seat (1) and compress tightly the filter unit between the subassembly, the filter unit includes a plurality of groups in the superimposed filter assembly (21) of vertical direction, it is flexible that the subassembly that compresses tightly is used for driving between the filter assembly (21), filter assembly (21) include board deflector roll (22), annular filter cloth (10), still include by bearing plate (212) and circular diaphragm (217) cooperation formation extrusion cavity, connect in material chamber (215) of extrusion cavity lower extreme and connect in the collection liquid board (211) of material chamber (215) lower extreme, annular filter cloth (10) are the S-shaped winding distribution between the board deflector roll (22) of each filter assembly (21) via material chamber (215) and collection liquid board (211), the circular diaphragm (217) and the material cavity (215) are both arranged to be circular structures.

2. The circular filter press according to claim 1, wherein a sealing ring (216) is connected to the lower surface of the material chamber (215).

3. The round filter press according to claim 1, wherein the pressing assembly comprises a guide post (4) connected to the upper end of the main frame (1), and a movable platen (3) slidably connected to the guide post (4), the movable platen (3) being disposed above the filter unit, the movable platen (3) being connected to the filter assembly (21) at the top end of the filter unit.

4. The circular filter press according to claim 3, wherein the pressing assembly further comprises a cylinder base (5) connected to the upper end of the connecting guide pillar (4), a hydraulic cylinder (6) is connected to the middle of the cylinder base (5), and the movable platen (3) is connected to the piston rod end of the hydraulic cylinder (6).

5. The circular filter press according to claim 3, wherein the guide posts (4) are arranged in four numbers, and are respectively connected to four corners of the main frame (1).

6. The circular filter press according to claim 3, wherein the pressing assembly further comprises a locking portion for locking the position of the guide pillar (4) and the movable platen (3).

7. The circular filter press according to claim 6, wherein the locking part comprises a locking block (161) arranged on the movable platen (3) and a wedge-shaped opening arranged on the connecting guide pillar (4), and the locking block (161) is in a wedge-shaped structure and is in sliding fit with the wedge-shaped opening.

8. The circular filter press according to claim 7, wherein the locking portion further comprises a locking cylinder (162) connected to the movable platen (3), and a rod end of the locking cylinder (162) is connected to a locking block (161).

9. The circular filter press according to claim 1, wherein the circular membrane (217) is made of rubber.

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