CN2339281Y

CN2339281Y - Mosaic connected diaphragm filter plate

Info

Publication number: CN2339281Y
Application number: CN 98244560
Authority: CN
Inventors: 朱兴源
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-30
Filing date: 1998-09-30
Publication date: 1999-09-22
Anticipated expiration: 2008-09-30

Abstract

A diaphragm filter plate of a chamber filter press for dewatering suspended matters. The utility model is characterized in that the sealing surface of the side end of the filter plate is provided with an annular groove with the width of M and the depth of H, the diaphragm is provided with an annular flanging which can be tightly embedded into the annular groove, and the embedded diaphragm protrudes out of the sealing surface of the filter plate. The utility model provides a current diaphragm filter plate the diaphragm with the leakproofness between the filter plate poor, life weak point and installation take a lot of work, take time, through-hole because of having the diaphragm to press from both sides messenger fluid passage and diminish and arouse the low scheduling problem of filter-pressing speed.

Description

The membrane filter plate of chimeric connection

The utility model relates to a kind of membrane filter plate of chamber-type press filter, and especially barrier film is with the airtight embedded structure between the filter plate.It can be widely used in the suspension dehydration in the industries such as chemical industry, pharmacy, environmental protection, food, smelting.

The existing membrane filter plate that is used for chamber filter press can be seen from Fig. 6～Fig. 8, and wherein Fig. 6 is that its front view, Fig. 7 are that A-A cutaway view Amplified image, Fig. 8 among Fig. 6 is the B-B cutaway view Amplified image among Fig. 6.Filter plate 1 and two bands that lay respectively at the filter plate two side ends that it contains a band through hole 11 are filtered protruding 21 barrier film 2, and are positioned at the diaphragm clip 3 that barrier film is connected as a single entity with filter plate; The structure of diaphragm clip can see from Fig. 8 that it is made up of sealing gasket 31, sleeve pipe 32 and bolt 33, nut 34.Existing this membrane filter plate has following shortcoming: 1) barrier film is by chamber filter press active force mechanism barrier film to be exerted pressure to realize that sealing pressure is born by barrier film entirely with the sealing of filter plate on periphery; Therefore, the sealing surface of barrier film will wear out prematurely, produce the crack, so service life is shorter under the high pressure effect of filter press work; 2) be provided with in through hole after the diaphragm clip, the effective area of through hole has reduced over half, that is the flow area of fluid reduces half at least, so it slows down speed of filter pressing; 3) installation of diaphragm clip needs specific purpose tool, and take a lot of work, time-consuming.

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, and a kind of membrane filter plate of chimeric connection is provided so that it have long service life, barrier film with the good airproof performance between the filter plate, speed of filter pressing is high and make characteristics such as easy for installation.

The membrane filter plate of chimeric connection includes filter plate and the protruding barrier film of band filter of being with through hole, characteristics of the present utility model are: filter plate has width on the sealing surface of its side be that M, the degree of depth are the cannelure of H, have the annular flange that can closely embed this cannelure on the barrier film, and the barrier film evagination after chimeric is in the sealing surface of filter plate.The membrane filter plate of the chimeric connection of the utility model, its barrier film with the pairing position of each through hole of filter plate on have the chimeric pipe that can embed in the through hole respectively, the pipe range of chimeric pipe is greater than its insertion depth on filter plate, and its inner end can to have the ring packing of seam ring and dentation protruding.

The membrane filter plate of the chimeric connection of the utility model can have indent circle or evagination circle on the circumferential end faces of its annular flange, and it is protruding to have ring packing on the end face of the outside of this flange.

The utility model has the advantages that: 1) the utility model between barrier film is with filter plate, adopted chimeric connection and chimeric after the barrier film evagination in the sealing surface of filter plate, thereby when guaranteeing that membrane filter plate compresses on filter press, its barrier film is just in the elastic range internal strain, and most thrust is born by the filter plate sealing surface, therefore the utility model membrane filter plate can prevent barrier film wearing out in long-term hyperbaric environment effectively, and can improve several times service life; 2) barrier film is provided with on the circumferential end faces of its annular flange after the concave or convex circle, can increase barrier film with the high leakproofness when inflation or the water-filling between the filter plate, has improved the reliability of filter press work; 3) between barrier film is with filter plate, cancelled diaphragm clip and adopted after the structure of chimeric connection, the through hole of filter plate therefore and unobstructed, fluid flow area can increase by more existing membrane filter plate, so the utility model membrane filter plate in use can make speed of filter pressing improve widely; 4) barrier film has not only saved diaphragm clip but also can save specific purpose tool with the chimeric connection between the filter plate, and easy for installation, can save time, saving of labor, material-saving.

To and contrast accompanying drawing by embodiment below, the utility model will be further described below.Have in the accompanying drawing:

Fig. 1 is the front view of the membrane filter plate of the chimeric connection of the utility model;

Fig. 2 is the A-A cutaway view Amplified image among Fig. 1;

Fig. 3 is the enlarged drawing of the node I among Fig. 2, and wherein (a) and (b), (c), (d), (e), (f), (g), (h), (i), (j) express the structure chart of ten kinds of different embodiments of the annular flange 22 of barrier film respectively;

Fig. 4 is the B-B cutaway view Amplified image among Fig. 1;

The B-B that Fig. 5 is illustrated in Fig. 1 analyses and observe locational chimeric pipe 23, and wherein (a) and (b), (c), (d), (e) represent the structure chart of its five kinds of different embodiments respectively;

Fig. 6～Fig. 8 is the structure of existing membrane filter plate, and wherein Fig. 6 is its front view, and Fig. 7 and Fig. 8 are respectively A-A cutaway view Amplified image and the B-B cutaway view Amplified images among Fig. 6.

From Fig. 1, Fig. 2, can see the structure of the membrane filter plate of the chimeric connection of the utility model, it includes filter plate 1 and the band of being with through hole 11 and filters protruding 21 barrier film 2, and filter plate 1 has its width of circle on the sealing surface 12 (the sealing face is the applying seal face of each filter plate after installing on the filter press) of its side be that M, the degree of depth are the cannelure of H; Barrier film 2 with the pairing position of the cannelure of filter plate on have one the circle annular flange 22, the width of this annular flange 22 and the degree of depth are complementary with width M, the depth H of filter plate cannelure respectively, that is the width of annular flange, the degree of depth be respectively greater than the width M and the depth H of cannelure so that annular flange is chimeric closely with cannelure, firmly.Barrier film after chimeric, its outer side edges want evagination in filter plate sealing surface 12, and the value of evagination height δ can be taken as about 1mm.

For improving fastness and membrane filter plate at work the sealing reliability of barrier film with chimeric connection between the filter plate, the annular flange of barrier film can be provided with indent circle 221 or evagination circle 223, is provided with ring packing protruding 222 on outboard end on its circumferential end faces.The ten kind different embodiments of barrier film on its annular flange are provided among Fig. 3.Wherein the cross section of the annular flange 22 among Fig. 3 a is that rectangle, Fig. 3 b are that trapezoidal, Fig. 3 c is the trapezoidal of peripheral band chamfering up and down; Annular flange among Fig. 3 d, Fig. 3 e, Fig. 3 f and Fig. 3 j circumferentially have evagination circle 223 respectively; Annular flange 22 among Fig. 3 g, Fig. 3 h, Fig. 3 i circumferentially have indent circle 221 respectively; Have ring packing protruding 222 on the outside end face of the annular flange 22 among Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 3 e, Fig. 3 h and the 3j respectively, wherein the width b of the sealing among Fig. 3 e protruding 222 is wide than the protruding width of other sealing, it is protruding to be planar ring packing, and the protruding wire that is of other sealing.Ring packing protruding 222 is particularly useful for only having uniseptate filter plate (promptly membrane filter plate only is equipped with barrier film and another side does not have barrier film at a side), with improve it in filter press with another piece not with the sealing effectiveness of the filter plate side of barrier film, and bring convenience for the assembling of filter press.

Barrier film in the utility model membrane filter plate, it with the pairing position of each through hole of filter plate (or charging hole) on have the chimeric pipe 23 that can embed in the through hole (or charging hole) respectively, the structure of chimeric pipe can be seen from Fig. 4, its pipe range is greater than its insertion depth h on filter plate, is beneficial to barrier film with the sealing between the filter plate.In order to increase chimeric pipe with the sealing between the filter plate, chimeric pipe inner end has seam ring 231, and can there be different shapes its end, express five kinds of different embodiments of its end among Fig. 5, wherein Fig. 5 a inner face E is the plane, and the inner face E among Fig. 5 b is that the inner face E of Fig. 5 c is an arc surface by the formed sharp convex surface of inside and outside rounding, inner face E among Fig. 5 d and Fig. 5 e and Fig. 5 c, the same shape of Fig. 5 a, but its end has the ring packing of dentation protruding 232.

Barrier film in the present embodiment is by resilient material such as manufacturings such as rubber, plastics.When membrane filter plate is installed, earlier barrier film is put into the side of filter plate and make annular flange on the barrier film aim at the cannelure on the filter plate, chimeric pipe is aimed at the through hole on the filter plate, exerting pressure then gets final product their chimeric being integral.This operation only needs people's independent operation usually, gets final product end of operation in 3～4 minutes, and does not also need specific purpose tool.

The cannelure of chimeric usefulness can be arranged on square frame 24 positions among Fig. 1 in the utility model membrane filter plate, also can be arranged on splayed frame 25 positions among Fig. 1, and its chimeric mode is identical.

Claims

1, a kind of membrane filter plate of chimeric connection, it includes the filter plate (1) of band through hole (11) and the barrier film (2) of band filter protruding (21), it is characterized in that: filter plate has width on the sealing surface (12) of its side be that M, the degree of depth are the cannelure of H, have the annular flange (22) that can closely embed this cannelure on the barrier film, and the barrier film evagination after chimeric is in the sealing surface (12) of filter plate.

2, membrane filter plate as claimed in claim 1 is characterized in that: said barrier film with the pairing position of each through hole of filter plate on have the chimeric pipe (23) that can embed in the through hole respectively; The pipe range of chimeric pipe is greater than its insertion depth h on filter plate, and its inner end can have the ring packing protruding (232) of seam ring (231) and dentation.

3, membrane filter plate as claimed in claim 1 or 2 is characterized in that: have indent circle (221) on the circumferential end faces of said annular flange (22), and have ring packing protruding (222) on the outboard end of this flange.

4, membrane filter plate as claimed in claim 1 or 2 is characterized in that: have evagination circle (223) on the circumferential end faces of said annular flange (22), and have ring packing protruding (222) on the end face of the outside of this flange.