CN109126231A - A kind of high elastic diaphragm filter board and preparation method thereof - Google Patents
A kind of high elastic diaphragm filter board and preparation method thereof Download PDFInfo
- Publication number
- CN109126231A CN109126231A CN201710509415.5A CN201710509415A CN109126231A CN 109126231 A CN109126231 A CN 109126231A CN 201710509415 A CN201710509415 A CN 201710509415A CN 109126231 A CN109126231 A CN 109126231A
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- diaphragm
- core plate
- frame portion
- main body
- body portion
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 21
- 239000013013 elastic material Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 65
- 239000012530 fluid Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 22
- 239000000706 filtrate Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract description 15
- 239000012065 filter cake Substances 0.000 abstract description 9
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 14
- 229920001971 elastomer Polymers 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- -1 polypropylene Polymers 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of high elastic diaphragm filter board and preparation method thereof, membrane filter plate includes core plate, diaphragm, feed opening, closed press media chamber and the press media hole for being provided on core plate and being connected with press media chamber, diaphragm includes hard ring, the diaphragm main body portion made of highly elastic material and diaphragm frame portion made of hard plastic made of hard plastic, press media chamber is between diaphragm main body portion and core plate, diaphragm frame portion is diaphragm seal face backwards to the outer surface of core plate, and the outer surface side in diaphragm main body portion is formed with filter chamber.The incompressible deformability of rigid plastics is strong, therefore can guarantee the sealing performance in diaphragm seal face, greatly extends the service life of membrane filter plate；And the deformability of highly elastic material is strong, so that there is biggish squeezing stroke can obtain the filter cake of low-water-content to guarantee the high squeezing rate of membrane filter plate in diaphragm main body portion, finally significantly saves dehydration energy.
Description
Technical field
The present invention relates to a kind of high elastic diaphragm filter boards.
The invention further relates to a kind of preparation methods of high elastic diaphragm filter board.
Background technique
Filter press is a kind of common solid-liquid separating equipment, is widely used in the neck such as medicine, food, chemical industry, metallurgy, environmental protection
Domain.Filter mechanism in filter press is mainly made of muti-piece filter plate, and filter plate mainly includes common filter plate and membrane filter plate, common filter
Plate and membrane filter plate are applied in combination after respectively being used alone or be intervally arranged.Wherein, membrane filter plate is mainly by core
Plate, the diaphragm for being installed in core plate front and rear sides, the airtight chamber being formed between core plate and diaphragm, front and back perforation feed opening and
Fluid hole, the filter chamber being formed on the outside of diaphragm and the filter cloth for covering filter chamber are constituted.The working principle of membrane filter plate are as follows: aqueous
Material enters in filter chamber through feed opening, and water in material and the particle less than filter cloth aperture exclude after passing through filter cloth through fluid hole,
Particle greater than filter cloth aperture is trapped in filter chamber and fills full filter chamber；Be passed through press media into airtight chamber, drum every
Film, the filter cake in further filters pressing filter chamber, reduces the water content of filter cake.
Currently, the diaphragm on membrane filter plate is monolith rubber diaphragm made of same material, and such as: Publication No.
A kind of compounded rubber entirety membrane filter plate disclosed in the Chinese invention patent application specification of CN103949096A has and covers
Filter plate at the diaphragm of lid filter frame and filter plate outer surface, diaphragm and filter frame and feed opening seals gluing, and diaphragm is vulcanised rubber layer；
For another example: disclosed in the Chinese invention patent application specification of Publication No. CN103285639A it is a kind of entirety compounded rubber every
Membrane filtration plate, has the diaphragm of rubber for being fixed on inner liner core plate two sides, and diaphragm of rubber is to be adhesively fixed with inner liner core plate；Rubber
Although diaphragm has preferable sealing performance and high resiliency, biggish squeezing stroke and high squeezing rate, its resistance to compression can be obtained
Compression deformation is poor, and sealing surface is easy to appear expansion permanent deformation and fails after being pressurized, therefore service life is short, and diaphragm of rubber can not yet
Recycling and reusing.In addition, the diaphragm on membrane filter plate may be monolith polypropylene diaphragm made of same material, than
As: integrated polypropylene diaphragm filter-plate knot disclosed in the Chinese utility model patent specification of Publication No. CN200960441Y
Structure, with center liner and polypropylene diaphragm filter disc, resistance to compression compression deformation is good, and squeeze pressure is high, and material can recycle,
But process is more during fabrication for polypropylene diaphragm filter-plate, manufacturing defect is more；Also, polypropylene diaphragm filter disc poor flexibility, thus
Its sealing performance is reduced, squeezing stroke is small, also results in the tearable, damage under cavity filter condition.Therefore, in the prior art
Diaphragm on membrane filter plate is all the flexible sheet made of same material, but diaphragm needs to consider in selection to seal on diaphragm
The sealing performance in face, will certainly reduce the endurance life of diaphragm, to reduce the squeezing stroke of diaphragm, cannot achieve high pressure
Squeezing rate.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of high elastic diaphragm filter board,
It can increase the squeezing stroke of diaphragm again in the leakproofness of sealing surface on guaranteeing diaphragm.
To achieve the above object, the present invention provides a kind of high elastic diaphragm filter board, including core plate, is installed in two before and after core plate
The diaphragm of side, front and back perforation core plate and diaphragm feed opening, be formed between core plate and diaphragm and closed press media chamber, with
And the press media hole for being provided on core plate and being connected with press media chamber, the diaphragm include be located at feed opening peripheral side and
Hard ring made of hard plastic, be installed in hard ring peripheral side and the diaphragm main body portion made of highly elastic material and
It is installed in diaphragm main body portion peripheral side and diaphragm frame portion made of hard plastic, the press media chamber is located at diaphragm main body
Between portion and core plate, the diaphragm frame portion is diaphragm seal face backwards to the outer surface of core plate, and the diaphragm main body portion is backwards to core
The outer surface of plate is located at the interior end side in diaphragm seal face, the outer surface side in diaphragm main body portion is made to be formed with filter chamber.
Further, all there is the first sealing with the sealing cooperation of hard ring in the front surface and rear surface of the core plate
Face and the secondary sealing area cooperated with the sealing of diaphragm frame portion；The diaphragm main body portion press media chamber inner circumferential side and
Peripheral side is welded and fixed with core plate, so that being formed between diaphragm main body portion and core plate positioned at the inner circumferential side of press media chamber and outer
The weld seam of side.
Further, multiple circumferentially distributed and courts along diaphragm frame portion are offered on the secondary sealing area of the core plate
To the flash groove of diaphragm frame portion, the flash groove is used to retain excessive melting when melting welding core plate and diaphragm to overflow and starch, and makes core plate
The weld seam in flash groove is formed between diaphragm frame portion.
Preferably, it is one that the hard ring, diaphragm main body portion and diaphragm frame portion three injection molding, which are structure as a whole or melt,
Body structure.
Further, the diaphragm main body portion has neighbour in the edge part of diaphragm frame portion and neighbour in hard ring
Excessive portion, the outer end face of the edge part flushes setting with diaphragm seal face, and the outer end face in the excessive portion is located at edge part
The interior end side of outer end face；The edge part is equipped with the first rake positioned at press media chamber peripheral side, first inclination
Portion is obliquely installed close to the outer end of filter chamber to the direction far from diaphragm frame portion；The excessive portion, which is equipped with, is located at press media chamber
Second rake of inner circumferential side, second rake are obliquely installed close to the outer end of filter chamber to the direction far from hard ring.
Preferably, the diaphragm frame portion is towards on the inner surface of core plate and hard anchor ring is on the inner surface of core plate
It is designed with groove, the edge part is equipped with the joint portion in the groove of insertion diaphragm frame portion, and the excessive portion is equipped with embedding
Enter the joint portion in the groove of hard ring.
It further, further include the liquid out for covering the filter cloth and multiple front and backs perforation core plate and diaphragm frame portion of filter chamber
Hole, the diaphragm main body portion are equipped with several support rims to gather and be used to support filter cloth, several supports on the bottom surface of filter chamber
The filtrate channel communicated with filter chamber is formed between boss, the filtrate channel is connected with fluid hole；Several support rims are remote
Outer end face from diaphragm main body portion flushes setting.
Further, at least one set of dispensing unit is designed at each fluid hole, every group of dispensing unit includes several open up
The diaphragm in diaphragm main body portion go out liquid approaching channel mouth, first be provided in diaphragm frame portion go out liquid inclined hole, be provided with outside core plate
Second for going out liquid groove and being provided in core plate on surface goes out liquid inclined hole, and described first goes out liquid inclined hole to go out closer to diaphragm
Liquid approaching channel mouth is more obliquely installed to the mode that diaphragm frame portion outer surface is drawn close, and described second goes out liquid inclined hole closer to fluid hole
It is more obliquely installed to the mode drawn close among core plate, the filtrate channel, diaphragm go out liquid approaching channel mouth, first go out liquid inclined hole, go out liquid
Liquid inclined hole and fluid hole are sequentially communicated out for groove, second.
Preferably, the outer surface of the core plate is designed with multiple tracks in the peripheral side of hard ring and the inner circumferential side of diaphragm frame portion
Outwardly projecting diaphragm support item, multiple tracks diaphragm support item are all located in press media chamber；It is located at more at hard ring peripheral side
The length that road diaphragm support item protrudes from core plate is gradually reduced along the direction far from hard ring, is located at diaphragm frame portion inner circumferential side
Multiple tracks diaphragm support item protrude from the length of core plate and be gradually reduced along the direction far from diaphragm frame portion.
Preferably, the core plate is solid plastic plate.
The present invention also provides a kind of preparation methods of high elastic diaphragm filter board as described above, comprising the following steps:
A, core plate blank is processed by Shooting Technique or pressing process, and by core plate blank it is machined after obtain core
Plate has feed opening and press media hole on core plate；
B, by Shooting Technique or by plate machining hard ring blank, and by hard ring blank it is machined after
To hard ring, hard ring is made of rigid plastics；
C, diaphragm frame portion blank is processed by Shooting Technique or plate welding procedure, and diaphragm frame portion blank is passed through
Diaphragm frame portion is obtained after machining, there is diaphragm seal face in diaphragm frame portion, diaphragm frame portion is made of rigid plastics；
D, hard ring and diaphragm frame portion are put into togerther in mold, are infused in a mold by Shooting Technique or smelting process
Enter highly elastic material, diaphragm obtained after demoulding, then diaphragm have diaphragm main body portion between hard ring and diaphragm frame portion,
And the feed opening positioned at hard ring inner circumferential；
E, two panels diaphragm is separately fixed on the front and rear sides outer end face of core plate, then on the feed opening and diaphragm on core plate
Feed opening be connected to and formed the feed opening of high elastic diaphragm filter board, formed between core plate and diaphragm main body portion it is closed and with
The press media chamber of press media hole connection, diaphragm seal face is backwards to the outer surface of core plate, and diaphragm main body portion is backwards to the outer of core plate
Surface is located at the interior end side in diaphragm seal face, the outer surface side in diaphragm main body portion is made to be formed with filter chamber.
As described above, high elastic diaphragm filter board of the present invention and preparation method thereof, has the advantages that
In the application, the diaphragm frame portion for being used to seal in diaphragm is made of rigid plastics, and will be used in diaphragm
The diaphragm main body portion of material is made of highly elastic material in filters pressing filter chamber, and the incompressible deformability of rigid plastics is strong, therefore
It can guarantee the sealing performance in diaphragm seal face, greatly extend the service life of membrane filter plate；And the deformation energy of highly elastic material
Power is strong, so that there is biggish squeezing stroke can obtain low contain to guarantee the high squeezing rate of membrane filter plate in diaphragm main body portion
The filter cake of water rate, finally significantly saves dehydration energy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high elastic diaphragm filter board in the application.
Fig. 2 is the sectional view along A-A of Fig. 1.
The B that Fig. 3 is Fig. 2 encloses enlarged drawing.
The C that Fig. 4 is Fig. 2 encloses enlarged drawing.
Component label instructions
1 core plate
11 press media holes
12 primary sealing areas
13 secondary sealing areas
14 flash grooves
15 go out liquid groove
16 second go out liquid inclined hole
17 diaphragm support items
2 diaphragms
21 hard rings
22 diaphragm main body portions
221 edge parts
222 excessive portions
223 first rakes
224 second rakes
225 support rims
226 filtrate channels
227 diaphragms go out liquid approaching channel mouth
23 diaphragm frame portions
231 diaphragm seal faces
232 first go out liquid inclined hole
24 grooves
25 joint portions
3 feed openings
4 press media chambers
5 filter chambers
6 weld seams
7 fluid holes
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is drawn, only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat
It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
In following embodiment, the thickness direction of high elastic diaphragm filter board is defined as front-rear direction.
As shown in Figures 1 to 4, the application provides a kind of high elastic diaphragm filter board, including core plate 1, is installed in 1 front and back of core plate
Diaphragm 2 on two side external surfaces, front and back perforation core plate 1 and diaphragm 2 feed opening 3, be formed in it is between core plate 1 and diaphragm 2 and close
The press media chamber 4 closed and the press media hole 11 for being provided on core plate 1 and being connected with press media chamber 4, the charging
Hole 3 is located at the middle position of high elastic diaphragm filter board；The press media hole 11 can be one, or two, when
When press media hole 11 is two, the press media hole 11 for being located below side is used to that press media to be made to flow into press media chamber 4,
The press media hole 11 of side is located above for press media to be discharged from press media chamber 4；Press media hole 11 is along left and right
Direction extends, and press media hole 11 is located on the outer peripheral surface of core plate 1 far from the outer end of press media chamber 4.
Further, in order to enable diaphragm 2 is with preferable sealing performance and biggish squeezing stroke, in the application
Diaphragm 2 is composite material diaphragm 2；Specifically, as shown in Fig. 2, diaphragm 2 includes being located at 3 peripheral side of feed opening and by rigid plastics
Manufactured hard ring 21 is installed in 21 peripheral side of hard ring and the diaphragm main body portion 22 made of highly elastic material and fixed
In 22 peripheral side of diaphragm main body portion and diaphragm frame portion 23 made of hard plastic, the press media chamber 4 is located at diaphragm master
Between body portion 22 and core plate 1；The diaphragm frame portion 23 is diaphragm seal face 231, the diaphragm master backwards to the outer surface of core plate 1
Body portion 22 is located at the interior end side in diaphragm seal face 231 backwards to the outer surface of core plate 1, and in other words, diaphragm main body portion 22 is backwards to core plate 1
Outer surface core plate 1 is closer to for diaphragm seal face 231, to make the outer surface side shape in diaphragm main body portion 22
At there is filter chamber 5, it may be assumed that be installed in the diaphragm 2 in 1 front surface of core plate, the front surface of diaphragm frame portion 23 is diaphragm seal face
231, in the longitudinal direction, the front end face in its diaphragm main body portion 22 be located at the rear side of 23 front end face of diaphragm frame portion, make its diaphragm
The front side of main part 22 is formed with filter chamber 5；Similarly, it is installed in the diaphragm 2 in 1 rear surface of core plate, diaphragm frame portion 23
Rear surface be diaphragm seal face 231, in the longitudinal direction, the rear end face in its diaphragm main body portion 22 be located at 23 rear end of diaphragm frame portion
The front side in face makes the rear side in its diaphragm main body portion 22 be formed with filter chamber 5.It is when high elastic diaphragm filter board is used alone, then adjacent
Two high elastic diaphragm filter boards compress after, the sealing cooperation of respective diaphragm seal face 231 is played preferable sealing function, is prevented
Only the material in filter chamber 5 or filtrate are flowed out between two adjacent high elastic diaphragm filter boards；When high elastic diaphragm filter board with it is general
When logical filter plate interval is arranged, matches, then after high elastic diaphragm filter board and common filter plate compress, on high elastic diaphragm filter board
Sealing surface on diaphragm seal face 231 and common filter plate, which seals, to be cooperated, and is played preferable sealing function, is prevented the object in filter chamber 5
Material or filtrate are flowed out between adjacent high elastic diaphragm filter board and common filter plate.In the present embodiment, core plate 1 is solid plastic
Plate, the rigid plastics for hard ring 21 to be made can be with are as follows: PP, PVDF, PE, PA etc.；For the height in diaphragm main body portion 22 to be made
Elastic material is thermoplastic elastomer (TPE), it is preferred to use TPE, POE etc.；Rigid plastics for diaphragm frame portion 23 to be made can be with
Are as follows: PP, PVDF, PE, PA etc..
The application also provides a kind of preparation method of high elastic diaphragm filter board, comprising the following steps:
Step A, core plate blank is processed by Shooting Technique or pressing process, and by core plate blank it is machined after
To core plate 1, there is feed opening 3 and press media hole 11 on core plate 1.
Step B, by Shooting Technique or by plate machining hard ring blank, and hard ring blank is machined
After obtain hard ring 21, hard ring 21 is made of rigid plastics.
Step C, diaphragm frame portion blank is processed by Shooting Technique or plate welding procedure, and by diaphragm frame portion hair
Obtain diaphragm frame portion 23 after base is machined, there is diaphragm seal face 231 in diaphragm frame portion 23, diaphragm frame portion 23 by
Rigid plastics is made.
Step D, hard ring 21 and diaphragm frame portion 23 are put into togerther in mold, are existed by Shooting Technique or smelting process
Highly elastic material is injected in mold, and one block of composite material is obtained after demoulding and is a unitarily formed diaphragm 2, then diaphragm 2 has
Diaphragm main body portion 22 between hard ring 21 and diaphragm frame portion 23 and the feed opening 3 positioned at 21 inner circumferential of hard ring；Or
Person says that hard ring 21, diaphragm main body portion 22 and 23 three of diaphragm frame portion injection molding are structure as a whole or melt and be structure as a whole.
Step E, two panels diaphragm 2 is separately fixed on the outer surface of front and rear sides of core plate 1, forms one block of composite material
High elastic diaphragm filter board；Also, the feed opening 3 on core plate 1 is opposite with 3 front and back of feed opening on diaphragm 2 and is connected to, forms height
The feed opening 3 of elastic diaphragm filter plate is formed closed and is connected to press media hole 11 between core plate 1 and diaphragm main body portion 22
Press media chamber 4, the diaphragm seal face 231 on diaphragm 2 is backwards to the outer surface of core plate 1, and diaphragm main body portion 22 is backwards to core plate 1
Outer surface is located at the interior end side in diaphragm seal face 231, the outer surface side in diaphragm main body portion 22 is made to be formed with filter chamber 5.
In high elastic diaphragm filter board involved in the application, by the diaphragm frame portion 23 for being used to seal in diaphragm 2 using hard
Matter plastics are made, and the diaphragm main body portion 22 that material in filters pressing filter chamber 5 is used in diaphragm 2 is made of highly elastic material, and hard
The incompressible deformability of matter plastics is strong, therefore can guarantee the sealing performance in diaphragm seal face 231, greatly extends high resiliency diaphragm
The service life of filter plate；And the deformability of highly elastic material is strong, may make diaphragm in conjunction with the press media chamber 4 of cavity type structure
There is main part 22 biggish squeezing stroke and squeeze pressure can obtain to guarantee the high squeezing rate of high elastic diaphragm filter board
To the filter cake of low-water-content, dehydration energy is finally significantly saved.In the application, the squeeze pressure of high elastic diaphragm filter board can be high
Up to 5MPa.Furthermore the plastics of core plate 1, the rigid plastics that hard ring 21 is made, the hard modeling that diaphragm frame portion 23 is made is made
Material and the highly elastic material that diaphragm main body portion 22 is made all use thermoplastic material, so that high elastic diaphragm filter board is whole
Body is made of thermoplastic material, can be convenient recycling.And the high elastic diaphragm filter board processed by step A- step E
Production can be realized using process equipment in the prior art, so as to reduce the input cost of high elastic diaphragm filter board production.
Further, as shown in Figure 3 and Figure 4, all have in the front surface and rear surface of the core plate 1 close with hard ring 21
The primary sealing area 12 of cooperation and the secondary sealing area 13 with the sealing cooperation of diaphragm frame portion 23 are sealed, guarantees core plate 1 and hard
Ring 21 seals the joint, the leakproofness of core plate 1 and 23 junction of diaphragm frame portion.In addition, the diaphragm main body portion 22 is being squeezed
At the inner circumferential side and peripheral side of dielectric cavity 4, hard ring 21, diaphragm frame portion 23 all pass through hot melting process and core plate 1 is welded and fixed,
Melting welding is formed between diaphragm main body portion 22 and core plate 1 positioned at press media at one piece of composite material high elastic diaphragm filter board
The inner circumferential side of chamber 4 and the weld seam 6 of peripheral side, between core plate 1 and hard ring 21 and between core plate 1 and diaphragm frame portion 23
It is formed with weld seam 6.In addition, as depicted in figs. 1 and 2, being offered on the secondary sealing area 13 of the core plate 1 multiple along diaphragm frame
Portion 23 circumferentially distributed and towards the flash groove of diaphragm frame portion 23 14, the flash groove 14 is used for melting welding core plate 1 and diaphragm 2
When retain excessive melting overflow slurry, make the weld seam 6 being formed in flash groove 14 between core plate 1 and diaphragm frame portion 23.
Further, as shown in Figures 2 to 4, the peripheral side in the diaphragm main body portion 22 has neighbour in diaphragm frame portion
23 edge part 221, inner circumferential side have neighbour in the excessive portion 222 of hard ring 21, and the edge part 221 is backwards to the outer of core plate 1
End face flushes setting with diaphragm seal face 231, and the outer end face in the excessive portion 222 is located at the interior end side of 221 outer end face of edge part,
Therefore filter chamber 5 is surrounded by diaphragm main body portion 22 and edge part 221.Particularly, the edge part 221, which is equipped with, is located at press media chamber
First rake 223 of 4 peripheral sides, the first rake 223 incline close to the outer end of filter chamber 5 to the direction far from diaphragm frame portion 23
Tiltedly setting, the first rake 223 are obliquely installed close to the inner end of core plate 1 to the direction close to diaphragm frame portion 23；It is described excessive
Portion 222 is equipped with the second rake 224 positioned at 4 inner circumferential side of press media chamber, and the second rake 224 is close to the outer end of filter chamber 5
It is obliquely installed to the direction far from hard ring 21, the second rake 224 is close to the inner end of core plate 1 to the direction close to hard ring 21
It is obliquely installed, the first rake 223 and the second rake 224 are in addition to guaranteeing that the fusion in diaphragm 2 between different materials forms one
Outside the effect of reliable press media chamber 4, also help diaphragm main body portion 22 adapt to diaphragm frame portion 23 and hard ring 21
The prolonged repeated stretching in joint, bending improve diaphragm 2 and high resiliency so that the fatigue resistance with higher of diaphragm 2
The service life of membrane filter plate.
Preferably, as shown in Figure 3 and Figure 4, on the inner surface of the diaphragm frame portion 23 towards core plate 1 and hard ring
It is designed with groove 24 on 21 inner surfaces towards core plate 1, during manufacturing diaphragm 2, injects the highly elastic material in mold
It flows into the groove 24 on diaphragm frame portion 23 and hard ring 21, making to demould has insertion diaphragm frame portion in rear edge portion 221
There is the joint portion 25 in the groove 24 of insertion hard ring 21 on joint portion 25, excessive portion 222 in 23 groove 24, mentioned with this
The structural strength of high diaphragm 2 itself.
It further, further include that the filter cloth for covering filter chamber 5 and four front and backs penetrate through core plates 1 and diaphragm frame portion 23
Fluid hole 7, high elastic diaphragm filter board are square structure, and four edges are designed with a fluid hole 7.Such as Fig. 1 and Fig. 2 institute
Show, the diaphragm main body portion 22 is equipped with several support rims 225 to gather and be used to support filter cloth, branch on the bottom surface of filter chamber 5
Support boss 225 be small cylindrical body, and diaphragm main body portion 22 have on the bottom surface of filter chamber 5 and only support rim 225, do not have
Other projective structures, the bottom surface positioned at the filter chamber 5 of 1 front side of core plate are the preceding table of the rear end face of filter chamber 5, diaphragm main body portion 22
Face, the bottom surface positioned at the filter chamber 5 of 1 rear side of core plate are the rear surface of the front end face of filter chamber 5, diaphragm main body portion 22；Several supports
The filtrate channel 226 communicated with filter chamber 5 is formed between boss 225, the filtrate channel 226 is connected with fluid hole 7.It is several
Support rim 225 flushes setting far from the outer end face in diaphragm main body portion 22, so that diaphragm main body portion 22 is to connect in the bottom of filter chamber 5
Nearly slab construction so that for process diaphragm main body portion 22 mould structure it is extremely simple, substantially reduce for process every
The expense of the mold of film main part 22, diaphragm main body portion 22 more easily reach closely knit imperforate requirement when forming；Also, works as and cover
After upper filter cloth, filter cloth be in the bottom surface of filter chamber 5 it is flat, without dead angle, so that filter cake high-efficient washing, the mistake without dead angle can be realized
Characteristic is filtered, washing effect is improved.
Further, as shown in figures 1 and 3, two groups of dispensing units, two groups of dispensing units are designed at each fluid hole 7
Circumferential direction along fluid hole 7 is spaced apart in 90 °, and every group of dispensing unit all includes several diaphragms being provided in diaphragm main body portion 22
Out liquid approaching channel mouth 227, be provided in diaphragm frame portion 23 first go out liquid inclined hole 232, be provided with 1 outer surface of core plate go out liquid it is recessed
Slot 15 and be provided in core plate 1 second go out liquid inclined hole 16.Wherein, first goes out liquid inclined hole 232 to go out liquid closer to diaphragm and draw
Notch 227 is more obliquely installed to the mode that 23 outer surface of diaphragm frame portion is drawn close；Out liquid groove 15 across multiple first go out liquid it is oblique
Hole 232 simultaneously will be close to be used for out liquid groove 15 in the flash groove 14 of fluid hole 7 in other words for part flash groove 14；Second
Out liquid inclined hole 16 by closer to fluid hole 7 more to being obliquely installed in a manner of drawing close among core plate 1, the filtrate channel 226, diaphragm
Liquid approaching channel mouth 227, first goes out liquid inclined hole 232 out, liquid inclined hole 16 and fluid hole 7 are sequentially communicated liquid groove 15, second out out.
Described first goes out liquid inclined hole 232 directly makes on the mold for processing diaphragm frame portion 23, so that diaphragm frame portion 23 1
Secondary molding；Second goes out liquid inclined hole 16 directly makes on the mold for processing core plate 1, so that 1 one-pass molding of core plate, Ci Zhongjia
The structural strength and service life of diaphragm frame portion 23 and core plate 1 can be improved in work mode, and easy to process；Certainly, first
Liquid inclined hole 232 can be reprocessed after the demoulding of diaphragm frame portion 23 and be formed out, and second goes out liquid inclined hole 16 can be after the demoulding of core plate 1
Reprocessing is formed.First go out liquid inclined hole 232 and second go out liquid inclined hole 16 size determined according to filter material and filtering technique
The model of high elastic diaphragm filter board process.
Preferably, as shown in Fig. 2, peripheral side and diaphragm frame portion 23 of the outer surface of the core plate 1 in hard ring 21
Inner circumferential side is designed with the outwardly projecting diaphragm support item 17 of multiple tracks, and multiple tracks diaphragm support item 17 is all located in press media chamber 4；If
Multiple tracks diaphragm support item 17 at 21 peripheral side of hard ring protrudes from direction of the length edge far from hard ring 21 of core plate 1 gradually
Reduce, is located at the multiple tracks diaphragm support item 17 at 23 inner circumferential side of diaphragm frame portion and protrudes from the length of core plate 1 along far from diaphragm side
The direction of frame portion 23 is gradually reduced；By multiple tracks diaphragm support item 17 can effectively 2 different materials of diaphragm intersection support every
Film main part 22 avoids diaphragm 2 from occurring excessive tensile phenomenon here, and diaphragm 2 is made to have longer service life.
When high elastic diaphragm filter board with above structure is used for filters pressing, four fluid holes 7 are all used for drain: water-containing materials
Enter in filter chamber 5 through feed opening 3, after filtrate penetrates filter cloth, successively goes out liquid approaching channel mouth 227, first through filtrate channel 226, diaphragm
Out liquid inclined hole 232, go out liquid groove 15, second go out liquid inclined hole 16 after flow into fluid hole 7 in, flowed out from the pipeline of filter press；To
After filling full with substance in filter chamber 5, it is passed through press media into press media chamber 4 through press media hole 11, drum opens diaphragm 2, from
And the filter cake in filter chamber 5 is squeezed, the moisture being squeezed out successively goes out liquid approaching channel mouth 227, first through filtrate channel 226, diaphragm again
Out liquid inclined hole 232, go out liquid groove 15, second go out liquid inclined hole 16 after flow into fluid hole 7 in, flowed out from the pipeline of filter press.Tool
There is the high elastic diaphragm filter board of above structure for when washing, two fluid holes 7 to be used for drain, in addition two in four fluid holes 7
A fluid hole 7 is for being passed through washing medium: water-containing materials enter in filter chamber 5 through feed opening 3, after filtrate penetrates filter cloth, successively pass through
Filtrate channel 226, diaphragm go out liquid approaching channel mouth 227, first and go out liquid inclined hole 232, go out after liquid groove 15, second goes out liquid inclined hole 16 to flow into
In fluid hole 7, flowed out from the pipeline of filter press；After filling full with substance in filter chamber 5, washing is passed through into two fluid holes 7
Medium, then washing medium through fluid hole 7, second goes out liquid inclined hole 16, goes out liquid groove 15, first and go out liquid inclined hole 232, diaphragm to go out liquid and draw
It is sufficiently mixed after notch 227 and filtrate channel 226 with the filter cake in filter chamber 5, washs filter cake, the filtrate after washing is through after filter cloth
It is discharged through other two fluid hole 7.
In conclusion this application involves high elastic diaphragm filter board combine polypropylene diaphragm filter-plate in the prior art and rubber
The advantage of glue membrane filter plate respectively, fast, filter cake high-efficient washing, the filtering feature without dead angle with liquid out.So the present invention is effective
It overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (11)
1. a kind of high elastic diaphragm filter board, including core plate (1), the diaphragm (2) for being installed in core plate (1) front and rear sides, front and back perforation
The feed opening (3) of core plate (1) and diaphragm (2), be formed between core plate (1) and diaphragm (2) and closed press media chamber (4),
And the press media hole (11) for being provided on core plate (1) and being connected with press media chamber (4), it is characterised in that: it is described every
Film (2) includes being located at feed opening (3) peripheral side and hard ring made of hard plastic (21), being installed in hard ring (21) periphery
It side and the diaphragm main body portion made of highly elastic material (22) and is installed in diaphragm main body portion (22) peripheral side and is moulded by hard
Diaphragm frame portion (23) made of expecting, the press media chamber (4) is located between diaphragm main body portion (22) and core plate (1), described
Diaphragm frame portion (23) is diaphragm seal face (231) backwards to the outer surface of core plate (1), and the diaphragm main body portion (22) is backwards to core plate
(1) outer surface is located at the interior end side in diaphragm seal face (231), the outer surface side in diaphragm main body portion (22) is made to be formed with filter chamber
(5)。
2. high elastic diaphragm filter board according to claim 1, it is characterised in that: the front surface of the core plate (1) and rear table
All have on face with the primary sealing area (12) of hard ring (21) sealing cooperation and seals cooperation with diaphragm frame portion (23)
Secondary sealing area (13)；The diaphragm main body portion (22) is welded in the inner circumferential side of press media chamber (4) and peripheral side and core plate (1)
It is fixed, so that being formed between diaphragm main body portion (22) and core plate (1) positioned at the inner circumferential side and peripheral side of press media chamber (4)
Weld seam (6).
3. high elastic diaphragm filter board according to claim 2, it is characterised in that: the secondary sealing area of the core plate (1)
(13) offered on it is multiple along the circumferentially distributed of diaphragm frame portion (23) and towards the flash groove of diaphragm frame portion (23) (14),
The flash groove (14) is used to retain excessive melting when melting welding core plate (1) and diaphragm (2) to overflow and starch, and makes core plate (1) and diaphragm side
The weld seam (6) in flash groove (14) is formed between frame portion (23).
4. high elastic diaphragm filter board according to claim 1, it is characterised in that: the hard ring (21), diaphragm main body portion
(22) it is structure as a whole or melts and be structure as a whole with diaphragm frame portion (23) three injection molding.
5. high elastic diaphragm filter board according to claim 1 or 4, it is characterised in that: the diaphragm main body portion (22) has
Neighbour is in the edge part (221) of diaphragm frame portion (23) and neighbour in the excessive portion (222) of hard ring (21), the edge
The outer end face in portion (221) flushes setting with diaphragm seal face (231), and the outer end face of the excessive portion (222) is located at edge part
(221) the interior end side of outer end face；The edge part (221) is equipped with the first rake positioned at press media chamber (4) peripheral side
(223), first rake (223) is obliquely installed close to the outer end of filter chamber (5) to the direction far from diaphragm frame portion (23)；
The excessive portion (222) is equipped with the second rake (224) positioned at press media chamber (4) inner circumferential side, second rake
(224) outer end close to filter chamber (5) is obliquely installed to the direction far from hard ring (21).
6. high elastic diaphragm filter board according to claim 5, it is characterised in that: the diaphragm frame portion (23) is towards core plate
(1) groove (24), the edge part are designed on inner surface and on the inner surface of hard ring (21) towards core plate (1)
(221) it is equipped with the joint portion (25) in the groove (24) of insertion diaphragm frame portion (23), the excessive portion (222) is equipped with embedding
Enter the joint portion (25) in the groove (24) of hard ring (21).
7. high elastic diaphragm filter board according to claim 1, it is characterised in that: further include cover filter chamber (5) filter cloth, with
And the fluid hole (7) of multiple front and back perforations core plate (1) and diaphragm frame portion (23), the diaphragm main body portion (22) is in filter chamber (5)
Bottom surface be equipped with it is several gather and be used to support the support rims (225) of filter cloth, be formed between several support rims (225)
The filtrate channel (226) communicated with filter chamber (5), the filtrate channel (226) are connected with fluid hole (7)；Several support rims
(225) outer end face far from diaphragm main body portion (22) flushes setting.
8. high elastic diaphragm filter board according to claim 7, it is characterised in that: be designed at least at each fluid hole (7)
One group of dispensing unit, every group of dispensing unit include several diaphragms being provided on diaphragm main body portion (22) go out liquid approaching channel mouth (227),
First be provided on diaphragm frame portion (23) go out liquid inclined hole (232), be provided with core plate (1) outer surface go out liquid groove (15),
And second be provided in core plate (1) goes out liquid inclined hole (16), described first goes out liquid inclined hole (232) is drawn with going out liquid closer to diaphragm
Notch (227) is more obliquely installed to the mode that diaphragm frame portion (23) outer surface is drawn close, and described second goes out liquid inclined hole (16) with more
It gets over close to fluid hole (7) to the intermediate mode drawn close of core plate (1) and is obliquely installed, the filtrate channel (226), diaphragm go out liquid approaching channel
Mouthful (227), first go out liquid inclined hole (232), go out liquid groove (15), second go out liquid inclined hole (16) and fluid hole (7) successively connects
It is logical.
9. high elastic diaphragm filter board according to claim 1, it is characterised in that: the outer surface of the core plate (1) is in hard
The peripheral side of ring (21) and the inner circumferential side of diaphragm frame portion (23) are designed with the outwardly projecting diaphragm support item (17) of multiple tracks, multiple tracks
Diaphragm support item (17) is all located in press media chamber (4)；The multiple tracks diaphragm support item being located at hard ring (21) peripheral side
(17) length for protruding from core plate (1) is gradually reduced along the direction far from hard ring (21), is located at diaphragm frame portion (23) inner circumferential
The length that multiple tracks diaphragm support item (17) at side protrudes from core plate (1) gradually subtracts along the direction far from diaphragm frame portion (23)
It is small.
10. high elastic diaphragm filter board according to claim 1, it is characterised in that: the core plate (1) is solid plastic plate.
11. a kind of preparation method of high elastic diaphragm filter board, it is characterised in that: the following steps are included:
A, core plate blank is processed by Shooting Technique or pressing process, and by core plate blank it is machined after obtain core plate
(1), there are feed opening (3) and press media hole (11) on core plate (1)；
B, by Shooting Technique or by plate machining hard ring blank, and by hard ring blank it is machined after obtain it is hard
Matter ring (21), hard ring (21) are made of rigid plastics；
C, diaphragm frame portion blank is processed by Shooting Technique or plate welding procedure, and by diaphragm frame portion blank through machinery
Obtained after processing diaphragm frame portion (23), in diaphragm frame portion (23) have diaphragm seal face (231), diaphragm frame portion (23) by
Rigid plastics is made；
D, hard ring (21) and diaphragm frame portion (23) are put into togerther in mold, by Shooting Technique or smelting process in mold
Middle injection highly elastic material obtains diaphragm (2) after demoulding, then diaphragm (2), which has, is located at hard ring (21) and diaphragm frame portion
(23) the diaphragm main body portion (22) between and the feed opening (3) positioned at hard ring (21) inner circumferential；
E, two panels diaphragm (2) is separately fixed on the front and rear sides outer end face of core plate (1), then the feed opening (3) on core plate (1)
The feed opening (3) of high elastic diaphragm filter board, core plate (1) and diaphragm main body portion are connected to and formed with the feed opening (3) on diaphragm (2)
(22) form press media chamber (4) that is closed and being connected to press media hole (11) between, diaphragm seal face (231) backwards
The outer surface of core plate (1), diaphragm main body portion (22) backwards to core plate (1) outer surface be located at diaphragm seal face (231) interior end side,
The outer surface side in diaphragm main body portion (22) is set to be formed with filter chamber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509415.5A CN109126231B (en) | 2017-06-28 | 2017-06-28 | High-elasticity diaphragm filter plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509415.5A CN109126231B (en) | 2017-06-28 | 2017-06-28 | High-elasticity diaphragm filter plate and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109126231A true CN109126231A (en) | 2019-01-04 |
| CN109126231B CN109126231B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710509415.5A Active CN109126231B (en) | 2017-06-28 | 2017-06-28 | High-elasticity diaphragm filter plate and preparation method thereof |
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| CN109794086A (en) * | 2019-03-04 | 2019-05-24 | 浙江复洁环保设备有限公司 | A kind of high-efficient washing filter plate |
| CN112007392A (en) * | 2020-09-17 | 2020-12-01 | 杭州互歌科技发展有限公司 | Water mold for plate-frame filter press |
| CN114797201A (en) * | 2022-07-01 | 2022-07-29 | 精华制药集团南通有限公司 | Filter press with multi-layer filtering cleaning function and using method |
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| CN114797201B (en) * | 2022-07-01 | 2022-09-09 | 精华制药集团南通有限公司 | Filter press with multi-layer filtering cleaning function and using method |
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|---|---|
| CN109126231B (en) | 2024-03-12 |
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