CN218608205U

CN218608205U - Diaphragm filter plate for filter press

Info

Publication number: CN218608205U
Application number: CN202222519774.8U
Authority: CN
Inventors: 李勇; 王连伟; 崔坤祥; 王煦
Original assignee: Qingdao Fuxianghe Industrial Co ltd
Current assignee: Qingdao Fuxianghe Industrial Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-03-14
Anticipated expiration: 2032-09-22

Abstract

The utility model provides a diaphragm filter plate for pressure filter, diaphragm filter plate can with the sealed cooperation of elastic diaphragm, diaphragm filter plate includes the main part, the round seal groove has been seted up on the main part surface, the notch size less than or equal to tank bottom size of seal groove, elastic diaphragm can imbed in the seal groove. The utility model provides a structure is established and is applicable to split type elastic diaphragm and diaphragm filter plate, can form sealed cavity with the sealed cooperation of elastic diaphragm to arrange the hole site rationally, realize the filter-pressing with the cooperation of van-type filter plate.

Description

Diaphragm filter plate for filter press

Technical Field

The utility model belongs to the technical field of pressure filter plate structural design, concretely relates to a diaphragm filter plate for pressure filter.

Background

The diaphragm filter plate of the filter press can fix an elastic diaphragm, the diaphragm filter plate and the elastic diaphragm form an internal cavity structure, external media including water or compressed air and the like are introduced into a cavity between the diaphragm filter plate and the diaphragm, so that the diaphragm expands to compress a filter cavity formed by the diaphragm filter plate and the box-type filter plate,

the traditional diaphragm plate and the elastic diaphragm are designed in an integrated mode, and are connected with the positioned ears through split bolts. When the pressure of water or other media inside exceeds the deformation pressure of the diaphragm filter plate in the using process, the diaphragm filter plate can deform or even be damaged for a long time; or when the elastic diaphragm is not level with the diaphragm filter plate after being matched with the diaphragm filter plate, the diaphragm filter plate is matched with the box-type filter plate under the action of a hydraulic system, the diaphragm between the diaphragm filter plate and the box-type filter plate is insufficiently extruded, so that the diaphragm filter plate and the box-type filter plate are forcedly extruded and sealed, the service life of the filter plate is also shortened, and the diaphragm filter plate is damaged,

because the diaphragm filter plate is the integral type design with the elastic diaphragm, must whole change when the diaphragm takes place to damage, the split type bolted connection of four fixed ears, the location degree of difficulty is big, and size precision is high after the assembly, and the filter plate misplaces easily when the pressfitting between filter plate and the filter plate, and the change degree of difficulty is big, increases after-sale cost of maintenance. An existing elastic diaphragm and diaphragm filter plate split type combination mode is that, in an elastic diaphragm and filter pressing assembly of a diaphragm filter press disclosed by application number 2022202890239, the elastic diaphragm is separated from the diaphragm filter plate, but the sealing performance of the elastic diaphragm and the diaphragm filter plate in matching is difficult to guarantee, if the sealing performance of the diaphragm filter plate and the elastic diaphragm is poor, the sealing effect of a cavity cannot be achieved, when extrusion pressure is high, water or other media in the cavity can leak, so that the extrusion pressure cannot be achieved, energy consumption is increased, and the liquid-solid separation effect of dehydrated objects is not ideal.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a diaphragm filter plate for pressure filter, this structure is established and is applicable to split type elastic diaphragm and diaphragm filter plate, can form sealed cavity with the sealed cooperation of elastic diaphragm to arrange the hole site rationally, realize the filter-pressing with the cooperation of van-type filter plate.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the utility model provides a diaphragm filter plate for pressure filter can with the sealed cooperation of elastic diaphragm, the diaphragm filter plate includes the main part, the round seal groove has been seted up on the main part surface, the notch size less than or equal to tank bottom size of seal groove, can imbed elastic diaphragm in the seal groove.

Preferably, the main body is provided with a first through hole; the shaft of the first through hole is perpendicular to the plane of the main plate, so that filter pressing media on two sides of the main body can pass through the first through hole.

The first through hole of the structure enables two sides of the diaphragm filter plate to be communicated, so that the pressure of chambers on two sides is balanced. And a second through hole is formed in the bottom of the cavity part and penetrates through the main plate, so that a filter pressing medium can conveniently enter a sealed cavity formed by the diaphragm filter plate and the elastic diaphragm through the second through hole.

Preferably, the chamber portion of the body transitions from four sides to the middle by a ramp. The thickness of the seal cavity under the structure is in uniform transition, so that the pressure is balanced. The diaphragm filter plate edge and the inner chamber are in smooth butt joint in the structure, so that the diaphragm filter plate is in full contact with the diaphragm, the diaphragm is prevented from being bulged to collide with the discharging device in the plate opening process, and the stability of the device is ensured.

Preferably, the bottom of the cavity part of the main body is provided with a second through hole, and the second through hole can allow a filter pressing medium to pass through.

Preferably, a third through hole is further formed in the upper right corner of the chamber portion of the main body, and the third through hole is connected with an air pump. The structure can realize blowing to the sealed cavity, so that liquid media are completely discharged.

Preferably, the top of the main body is provided with a feeding hole.

Preferably, a filtrate outlet hole is formed in the bottom of the main body and penetrates through the main body.

Preferably, the main body is connected with an ear-shaped plate, and the ear-shaped plate is used for being connected to a filter press.

Preferably, the edge of the surface of the main body is provided with a screw hole. The structure is used for fixing the edge of the elastic diaphragm on the diaphragm filter plate.

Preferably, the material of the diaphragm filter plate is PP.

Preferably, the diaphragm filter plate is formed by an integrated forming process.

Compared with the prior art, the utility model discloses an advantage and beneficial effect are: be equipped with the seal groove in the main part, can match the shape of elastic diaphragm, realize sealed assembly, with the components of a whole that can function independently assembled of diaphragm, when the diaphragm damaged, only need to dismantle the diaphragm get off change can, reduced after-sale cost of maintenance. In the preferred embodiment, the sealing groove is matched in an upper narrow and lower broadband angle mode, the diaphragm is knocked in from the upper narrow part by a leather hammer, the inner wide part is filled, the diaphragm filter plate and the elastic diaphragm are fixed by thin bolts, the diaphragm filter plate is internally provided with the insert, the matching strength and the positioning precision of the diaphragm filter plate and the elastic diaphragm are improved, the diaphragm is not easy to fall off when the diaphragm filter plate is matched with the diaphragm by the inclined structure mode of the diaphragm filter plate, the sealing performance of an inner cavity is ensured, the cavity can bear enough pressure, and the use stability and the service life of the diaphragm filter plate are ensured.

The utility model discloses a have preferred structure to open the through-hole at diaphragm filter plate cavity part, make diaphragm filter plate both sides cavity link up, when water or other extrusion medium got into the cavity and formed the pressure differential, through the pressure of the balanced diaphragm filter plate both sides cavity of through-hole on the filter plate, guaranteed that both sides cavity pressure value keeps unanimous.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;

fig. 3 is a partially enlarged structural view of a portion B of fig. 2.

The reference numbers in the figures: 1. a main body; 2. a sealing groove; 3. a chamber portion; 4. a screw hole; 5. an ear-shaped plate; 6. a through groove; 7. a first through hole; 8. a second through hole; 9. a third through hole; 10. a slope; 11. a feed port; 12. the filtrate is discharged.

Detailed Description

The preferred embodiments of the present invention will be described with reference to the accompanying drawings 1-3, and it should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The utility model provides a van-type filter plate structure mainly used diaphragm filter press, the leading flank and the trailing flank of diaphragm filter plate are used for respectively with the sealed cooperation of an elastic diaphragm, constitute two sealed cavities, are used for letting in the medium of gaseous or liquid form's filter-pressing usefulness in the sealed cavity.

As shown in the attached drawing 1, the diaphragm filter plate comprises a main body 1, the front structure and the rear structure of the main body 1 are symmetrical, a circle of sealing groove 2 is formed in the surface of the main body 1, the size of a notch of the sealing groove 2 is smaller than that of the groove bottom, and a sealing part of an elastic diaphragm can be embedded into the sealing groove 2. The part enclosed in the seal groove 2 of the main body 1 is a cavity part 3 of the diaphragm filter plate and is used for forming a seal cavity with the elastic diaphragm, and a filter pressing medium is introduced into the seal cavity to enable the diaphragm to swell and squeeze materials. Elastic diaphragm's sealing part embedding seal groove 2 in, by 2 extrusion deformation of seal groove, because the elastic reaction, elastic diaphragm sealing part after the inflation and the combination of 2 hardnesses of seal groove, the size of notch is less, and elastic diaphragm sealing part is difficult breaks away from in 2 from seal grooves, realizes sealedly. After the plates are laminated by the filter press, the van-type filter plate presses the edge of the membrane under the action of hydraulic pressure to further enable the elastic membrane to be tightly attached to the diaphragm filter plate. As shown in fig. 3, the preferred cross-sectional shape of the seal groove 2 is trapezoidal. Above-mentioned structure is in order to guarantee the leakproofness of diaphragm filter plate and diaphragm cooperation back cavity, 2 cross-sections of seal groove adopt under the narrow width angle form cooperations on the diaphragm filter plate, knock in the diaphragm from the notch with the skin hammer, inside wide department is filled up, the slim bolt of rethread makes diaphragm filter plate and elastic diaphragm fixed, the inside mosaic piece that is furnished with of diaphragm filter plate, increase diaphragm filter plate and elastic diaphragm's cooperation intensity and positioning accuracy, diaphragm is difficult for droing when this kind of diaphragm filter plate slope structure mode makes diaphragm filter plate and diaphragm cooperation, guarantee the leakproofness of inside cavity, make the cavity can bear enough big pressure, diaphragm filter plate stability in use and life have been guaranteed.

Screw holes 4 are formed in the surface of the main body 1 and the outer side edge of the sealing groove 2 and used for fixing the edge of the elastic diaphragm on the diaphragm filter plate. Bolts, such as flat head screws, can be used to pass through the elastic membrane and tighten the bolts onto the threaded holes 4 of the membrane filter plate. The elastic diaphragm can be further fixed, and the elastic diaphragm is prevented from being separated from the diaphragm filter plate when the elastic diaphragm is not used. The positioning structure of the screw hole 4 is adopted, so that the positioning size and the positioning strength of the elastic membrane can be ensured, and the position deviation caused by split assembly is prevented; if the elastic diaphragm is damaged, only the bolt needs to be detached and replaced, and the operation is convenient.

The four corners of the main body 1 are connected with ear-shaped plates 5, and the ear-shaped plates 5 are used for being connected on a filter press in a sliding way. Two through grooves 6 are formed in the bottoms of the two ear-shaped plates 5 above, the direction of each ear-shaped plate 5 is perpendicular to the direction of each ear-shaped plate, and the two through grooves 6 can block the corresponding side beams of the filter press to prevent left and right shaking.

The surface of the main body 1 and the chamber part 3 inside the sealing groove 2 are provided with a plurality of groups of hole-shaped structures for realizing the entrance and exit of media, including but not limited to a first through hole 7 for pressure balance, a second through hole 8 for entrance and exit of media and a third through hole 9 for air blowing. The two first through holes 7 are positioned at the inner side positions of the sealing groove 2 below the main body 1, and the axes of the first through holes 7 are perpendicular to the main board, so that filter pressing media on the front side and the rear side of the main body 1 can pass through. When the filter plate is used, the elastic diaphragms are respectively arranged on two sides of the diaphragm filter plate, filter pressing media are filled between the diaphragm filter plate and the elastic diaphragms, and the first through holes 7 enable the two sides of the diaphragm filter plate to be communicated, so that the pressure of chambers on the two sides is balanced. The bottom of the cavity part 3 is provided with a second through hole 8, and the second through hole 8 penetrates through the main board, so that a filter pressing medium can conveniently enter a sealed cavity formed by the diaphragm filter plate and the elastic diaphragm through the second through hole 8. Two third through holes 9 are further formed in the upper right corner of the chamber portion 3, the third through holes 9 penetrate through the main body 1, and the third through holes 9 can be connected with an air pump through pipelines and used for blowing air to the sealed cavity to enable liquid media to be completely discharged.

As shown in fig. 2 to 3, the periphery of the chamber portion 3 is transited to the middle by the slope 10, so that the thickness of the sealed cavity is transited uniformly, thereby equalizing the pressure. The diaphragm filter plate edge and the inner cavity are in smooth butt joint in the structure, so that the diaphragm filter plate is in full contact with the diaphragm, the diaphragm is prevented from being bulged and colliding with the discharging device in the plate opening process, and the stability of equipment is guaranteed.

Feed port 11 has been seted up at 1 top of main part, and after the pressure filter plywood of equipment, the material gets into the material chamber that diaphragm and van-type filter plate constitute through the feeder hopper from feed port 11, and the groove is seted up on 1 surface of main part of feed port 11 below of diaphragm filter plate for match the feeder hopper shape in the material chamber.

The bottom of main part 1 is equipped with the filtrating and exports 12, and the filtrating is exported 12 and is located seal groove 2 below, and the filtrating is exported 12 and is run through main part 1, and the filtrating that flows to the bottom along the elastic diaphragm surface can flow out through filtrating and exporting 12.

In the preferred embodiment of the application, the diaphragm filter plate adopts an integrated forming process, can be made of PP (polypropylene), and has the advantages of stable physical property, strong plasticity, small mass and stable chemical property. The four ear-shaped plates 5 of the diaphragm filter plate and the box-type filter plate main body 1 are formed at one time, so that the diaphragm filter plate is high in overall strength, strong in toughness, stable in structure and better in stress, the problem of sealing of a butt joint is solved, and the diaphragm filter plate is particularly suitable for a pressure state. Meanwhile, the position deviation caused by split connection is avoided, and the assembly precision is high.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed in the appended claims.

Claims

1. The utility model provides a diaphragm filter plate for pressure filter, can with the sealed cooperation of elastic diaphragm, its characterized in that, diaphragm filter plate includes main part (1), round seal groove (2) have been seted up on main part (1) surface, the notch size less than or equal to tank bottom size of seal groove (2), can imbed elastic diaphragm in seal groove (2).

2. The membrane filter plate for filter presses according to claim 1, characterized in that said body (1) is provided with a first through hole (7); the axis of the first through hole (7) is vertical to the plane of the main plate, so that filter pressing media on two sides of the main body (1) can pass through the main body.

3. The membrane filter plate for filter presses according to claim 1, characterized in that the chamber portion (3) of the body (1) is transitionally intermediate all around by ramps (10).

4. The membrane filter plate for filter presses according to claim 1, characterised in that the bottom of the chamber portion (3) of the body (1) is provided with a second through hole (8), said second through hole (8) being able to let the filter press medium pass.

5. The membrane filter plate for filter presses according to claim 4, characterized in that the upper right corner of the chamber portion (3) of said main body (1) is further equipped with a third through hole (9), said third through hole (9) being connected to an air pump.

6. The membrane filter plate for filter presses according to claim 1, characterised in that the body (1) is provided with a feed hole (11) at the top.

7. The membrane filter plate for filter presses according to claim 1, characterized in that the bottom of the body (1) is opened with a filtrate outlet hole (12), the filtrate outlet hole (12) penetrating the body (1).

8. The membrane filter plate for filter presses according to claim 1, characterised in that the body (1) is associated with an ear plate (5), the ear plate (5) being intended to be connected to a filter press.

9. The membrane filter plate for filter presses of claim 1, wherein the material of said membrane filter plate is PP.

10. The membrane filter plate for filter presses of claim 9, wherein said membrane filter plate is formed in a one-piece process.