CN210645283U

CN210645283U - Improved filter plate structure of filter press

Info

Publication number: CN210645283U
Application number: CN201921622893.8U
Authority: CN
Inventors: 叶桂尧
Original assignee: Huizhou Jentium Equipment Co ltd
Current assignee: Huizhou Jentium Equipment Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-06-02
Anticipated expiration: 2029-09-27

Abstract

The utility model relates to a modified pressure filter plate structure, include the sheet frame, inlay and establish metal plate body and setting in the sheet frame are in the diaphragm of metal plate body both sides face, the centre of metal plate body and diaphragm is equipped with the pan feeding hole that runs through the filter plate, be formed with the packing chamber between diaphragm and the metal plate body, the both sides of sheet frame be equipped with the filling hole of packing chamber intercommunication, sheet frame protrusion metal plate body forms the filter chamber, the diaphragm is equipped with first fold structure with the junction of sheet frame, the diaphragm is equipped with second fold structure with the junction of pan feeding hole, fluid accessible the filling hole gets into the packing intracavity to prop a first fold structure and second fold structure under external pressure, make the diaphragm removes towards the filter chamber. The utility model can fully extrude the slurry when the diaphragm expands, thereby improving the dewatering effect; on the other hand, the stress of the membrane during expansion can be dispersed, and the service life of the membrane is prolonged.

Description

Improved filter plate structure of filter press

Technical Field

The utility model relates to a solid-liquid separation equipment field particularly, relates to a modified filter-press filter plate structure.

Background

The filter press is a mechanical device which applies certain pressure to an object by using a filter medium to enable liquid to seep out, and is widely applied to the industries of chemical industry, main, metallurgy, fuel, food, brewing, environmental protection and the like. The filter press is generally pressed together by combining a plurality of filter plates for fixing filter cloth, slurry enters a filter cavity between adjacent filter plates from a feeding hole, the filter plates are continuously extruded at two ends through a power mechanism, meanwhile, pressure fluid is filled between a membrane and a plate body, so that the membrane is stretched, the membrane expands outwards to extrude the slurry, filtrate flows out through the filter cloth and a drain hole, and filter cakes are remained in the filter cavity between the filter cloth.

Figure 4 is the diaphragm 3 structure of current filter plate, and current diaphragm 3 generally is a plane, and when expanding, often only mid portion can be protruding, and still there is great space between diaphragm 3 and sheet frame 1 and between diaphragm 3 and pan feeding hole 5 for this partial thick liquids can not effectively be extruded, has influenced holistic dehydration effect. In addition, because can produce the pulling strength to the diaphragm periphery when diaphragm 3 expands, lead to diaphragm 3 and sheet frame 1 and diaphragm 3 and pan feeding hole 5's junction to hold the damage, influence the life of diaphragm 3.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved filter plate structure of a filter press, which can ensure that the membrane can fully extrude slurry when expanding and improve the dehydration effect; on the other hand, the stress of the membrane during expansion can be dispersed, and the service life of the membrane is prolonged.

The utility model provides a modified filter press filter plate structure, includes the sheet frame, inlays to be established metal plate body and setting of the interior week of sheet frame are in the diaphragm of metal plate body both sides face, the centre of metal plate body and diaphragm is equipped with the pan feeding hole that runs through the filter plate, be formed with the packing chamber between diaphragm and the metal plate body, the both sides of sheet frame be equipped with fill the filling hole of chamber intercommunication, sheet frame protrusion metal plate body forms the filter chamber, the diaphragm is equipped with first fold structure with the junction of sheet frame, the diaphragm is equipped with second fold structure with the junction of pan feeding hole, fluid accessible the filling hole gets into fills the intracavity to prop a first fold structure and second fold structure under external pressure, make the diaphragm removes towards the filter chamber.

Further, the first pleat structure comprises a first pleat and a second pleat, the first pleat is parallel to the surface of the metal plate body, and the outer periphery of the first pleat is connected with the plate frame; the second pleat sheet and the surface of the metal plate body form an included angle, the inner periphery of the second pleat sheet is connected with the inner periphery of the first pleat sheet, and the outer periphery of the second pleat sheet is connected with the membrane.

Further, the second pleat structure comprises a third pleat and a fourth pleat, the third pleat is parallel to the surface of the metal plate body, and the inner periphery of the third pleat is connected with the outer wall of the feeding hole; the fourth pleat sheet and the surface of the metal plate body form an included angle, the outer periphery of the fourth pleat sheet is connected with the outer periphery of the third pleat sheet, and the inner periphery of the fourth pleat sheet is connected with the membrane.

Further, the first pleat and the second pleat are both made of elastic plastics.

Further, the first and second flaps are polypropylene elastomers.

Further, the joints of the second and fourth pleats and the membrane sheet are all formed into round corners.

Compared with the prior art, the beneficial effects of the utility model are that: through the periphery that is close to the sheet frame at the diaphragm set up first fold structure to and set up second fold structure in the periphery in pan feeding hole, make the diaphragm when the inflation, can fully fill the space of straining the chamber, make the thick liquids that are close to the sheet frame periphery and pan feeding hole can both obtain effectual extrusion, thereby improve the effect of dehydration. The stress of the diaphragm can be effectively dispersed by the first corrugated structure and the second corrugated structure, so that the stress of the joint of the diaphragm and the plate frame and the joint of the diaphragm and the feeding hole are uniform, the diaphragm is protected, and the service life of the diaphragm is prolonged.

Drawings

Fig. 1 is a schematic structural view of the improved filter press filter plate structure of the present invention.

Figure 2 is a longitudinal cross-sectional view of the improved filter press filter plate structure of the present invention.

Fig. 3 is the diaphragm expansion state diagram of the improved filter press filter plate structure of the present invention.

Fig. 4 is a graph showing a comparison between the expansion states of the diaphragms of the conventional filter plate.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 to 3, in a preferred embodiment, the improved filter plate structure of a filter press of the present invention mainly comprises a plate frame 1, a metal plate 2, and a membrane 3, wherein the metal plate 2 is embedded in the inner periphery of the plate frame 1 for supporting the filter plate and enhancing the overall strength of the filter plate. The diaphragm 3 sets up on the two sides of metal plate body 2, is formed with between diaphragm 3 and the metal plate body 2 and fills chamber 4, and the both sides of sheet frame 1 are equipped with the filling hole 7 with filling chamber 4 intercommunication. The middle of the metal plate body 2 and the diaphragm 3 is provided with a feeding hole 5 which runs through the filter plate, and the plate frame 1 protrudes out of the metal plate body 2, so that a filter cavity 6 for containing slurry is formed between the inner peripheral side of the plate frame 1 and the metal plate body 2. Diaphragm 3 is equipped with first fold structure 8 with the junction of sheet frame 1, diaphragm 3 is equipped with second fold structure 9 with the junction of pan feeding hole 5, during the filter-pressing, two adjacent filter plates offset under power unit's pressure, thick liquids get into filter chamber 6 and fill filter chamber 6 from pan feeding hole 5, fill fluid (like air, water etc.) into to filling chamber 4 through filling hole 7 this moment, prop first fold structure 8 and second fold structure 9 of opening under external pressure for 3 surperficial orientations of diaphragm filter chamber 6 removal, 3 oppression thick liquids of diaphragm, filtrating oozes and gets into the filter hole on the sheet frame 1 from thick liquids, flow out via the apopore again.

Wherein, the first pleat structure 8 comprises a first pleat 81 and a second pleat 82, the first pleat 81 is parallel to the surface of the metal plate body 2, and the outer periphery of the first pleat 81 is connected with the plate frame 1; the second gusset 82 is angled with respect to the surface of the metal plate body 2, the inner periphery of the second gusset 82 is connected to the inner periphery of the first gusset 81, and the outer periphery of the second gusset 82 is connected to the membrane 3.

The second pleat structure 9 comprises a third pleat 91 and a fourth pleat 92, the third pleat 91 is parallel to the surface of the metal plate body 2, the inner periphery of the third pleat 91 is connected with the outer wall of the feeding hole 5; the fourth gusset 92 forms an angle with the surface of the metal plate body 2, the outer periphery of the fourth gusset 92 is connected with the outer periphery of the third gusset 91, and the inner periphery of the fourth gusset 92 is connected with the membrane 3.

By arranging the first corrugation structure 8 and the second corrugation structure 9, when the membrane 3 expands, the surface of the membrane 3 can integrally move towards the filter cavity 6, so that on one hand, the surface of the membrane 3 can be uniformly stressed, and the membrane 3 is protected; on the other hand, the size of the filter cavity 6 can be increased, so that the connection position of the diaphragm 3 and the plate frame 1 and the connection position of the diaphragm 3 and the feeding hole 5 can be fully extruded, and the dewatering effect is improved. In addition, can also disperse the strength of dragging of

diaphragm

3 and 1 junction of sheet frame and

diaphragm

3 and 5 junctions of pan feeding hole, avoid diaphragm 3 to damage, prolong 3 life of diaphragm.

In this embodiment, the first corrugation structure 8 and the second corrugation structure 9 are both made of elastic plastics, specifically, polypropylene elastomer can be used.

In order to protect the membrane 3 and avoid friction between the membrane 3 and the panel frame 1, in the present embodiment, the joints between the second gusset 82 and the fourth gusset 92 and the membrane 3 are formed as round corners.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. The utility model provides a modified filter press filter plate structure, includes the sheet frame, inlays to be established metal plate body and the setting of the interior week of sheet frame are in the diaphragm of metal plate body both sides face, the centre of metal plate body and diaphragm is equipped with the pan feeding hole that runs through the filter plate, be formed with the packing chamber between diaphragm and the metal plate body, the both sides of sheet frame be equipped with fill the filling hole of chamber intercommunication, sheet frame protrusion metal plate body forms the filter chamber, a serial communication port, the diaphragm is equipped with first fold structure with the junction of sheet frame, the diaphragm is equipped with second fold structure with the junction of pan feeding hole, fluid accessible the filling hole gets into fills the intracavity to prop first fold structure and second fold structure under external pressure, make the diaphragm removes towards the filter chamber.

2. The improved filter press filter plate structure according to claim 1 wherein said first pleat structure comprises a first pleat and a second pleat, said first pleat being parallel to the surface of said metal plate body, the outer periphery of said first pleat being attached to the plate frame; the second pleat sheet and the surface of the metal plate body form an included angle, the inner periphery of the second pleat sheet is connected with the inner periphery of the first pleat sheet, and the outer periphery of the second pleat sheet is connected with the membrane.

3. The improved filter press filter plate structure as claimed in claim 2, wherein said second pleat structure comprises a third pleat and a fourth pleat, said third pleat being parallel to the surface of said metal plate body, the inner periphery of said third pleat being connected to the outer wall of said feed hole; the fourth pleat sheet and the surface of the metal plate body form an included angle, the outer periphery of the fourth pleat sheet is connected with the outer periphery of the third pleat sheet, and the inner periphery of the fourth pleat sheet is connected with the membrane.

4. The improved filter plate structure as claimed in claim 3 wherein said first and second pleated structures are each made of resilient plastic.

5. The improved filter plate structure as claimed in claim 4, wherein said first and second pleated structures are polypropylene elastomers.

6. The improved filter plate structure as claimed in claim 3 wherein the junction of said second and fourth pleats and said membrane sheet are each formed as a rounded corner.