CN107626123A - Circular diaphragm filter plate with line formula filtration - Google Patents
Circular diaphragm filter plate with line formula filtration Download PDFInfo
- Publication number
- CN107626123A CN107626123A CN201711042288.9A CN201711042288A CN107626123A CN 107626123 A CN107626123 A CN 107626123A CN 201711042288 A CN201711042288 A CN 201711042288A CN 107626123 A CN107626123 A CN 107626123A
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- Prior art keywords
- filter plate
- circular diaphragm
- plate
- barrier film
- diaphragm filter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims description 40
- 230000018044 dehydration Effects 0.000 claims abstract description 22
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 230000004888 barrier function Effects 0.000 claims description 28
- 230000000994 depressogenic effect Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A circular diaphragm filter plate with a line type filter structure comprises a plate core, a diaphragm, a sunken filter cloth and a feed inlet; the diaphragm is fixedly arranged on the front surface and the back surface of the plate core, the surface of the diaphragm is provided with an inward concave part, and the surface of the concave part is provided with a grain structure; the grain structure consists of a plurality of concentric annular bosses; the sunken filter cloth covers the surface of the diaphragm, and a downward sunken state is formed at the sunken part of the grain structure; the feed inlet is formed in the center of the plate body; the circular diaphragm filter plate provided by the invention has the advantages of high strength, large filter surface, small occupied area, more sufficient dehydration and high filter pressing and dehydration efficiency on the basis of realizing secondary pressing by using the diaphragm.
Description
Technical field
The present invention relates to squeezer technical field, more particularly to a kind of circular diaphragm filter with lines formula filtration
Plate.
Background technology
National environmental protection is increasing to dehydration capacity requirements at present, the mass dryness fraction more and more higher required dehydration.It is but existing
The generally planar design of filter press plate, but its press filtration limited area, therefore the dehydration face of filter press plate is transformed constantly from 2 squares of filtering surfaces
Increase to more than 2000 squares of filtering surfaces, cause to take up an area the problem of big, filter-press arrangement is unstable, and in order to meet that its intensity will
Ask, the material for preparing that also results in filter press plate is multiplied, and does not still meet to capacity requirements but, while also do not reach volume reduction
Decrement and production energy-saving requirement.And in current membrane filter plate, due to consideration that the stability and press filtration area of squeezing,
It is usually arranged as square plate, but still there is press filtration limited area, the deficiencies such as its dewatering efficiency is low.
In addition, for example southern sewage plant, which produces sludge organic matter, has reached more than 30% over dry percentage, adopted in filter press plate
With the Normal practice of parallel filter cloth, parallel space often is not easy to be dehydrated, made because organic matter weight is partially light and granularity is thin
Into sandwich filter cake, filtration time length, material is built bridge less, viscosity is big, while organic materials space between cells also makes water-water reactor combine in centre
The sandwich moisture content formed reaches more than 80%, can not realize preferable dewatering state, cause dewatering low, filtration time length
Problem, there is also such situation for equal Electroplate Factory, printing and dyeing, mine, chemical pharmaceutical factory.And also exist in the extruding to material
During, because water route is distributed the problem of not reasonable, make drainage longer by the time discharged in filter cake, or even can not be fully complete
Effectively discharge, cause to influence the mass dryness fraction being dehydrated.
The content of the invention
It is an object of the invention to propose a kind of circular diaphragm filter plate with lines formula filtration, its not only intensity
It is high, filtering surface is big and it is few to take up an area, and on the basis of twice pressing is realized using barrier film, its dehydration is more abundant, press filtration and takes off
Water efficiency high.
To use following technical scheme up to this purpose, the present invention：
A kind of circular diaphragm filter plate with lines formula filtration, including plate core, barrier film, depression filter cloth and charging aperture；
The barrier film is fixedly installed in the tow sides of the plate core, and the surface of the barrier film is provided with the depression to cave inward
Portion, the surface of the depressed part are provided with texture structure；The texture structure is made up of several concentric ring-steps；It is described recessed
Sunken filter cloth is covered in the surface of the barrier film, and forms downward etat lacunaire in the recess of texture structure；The charging aperture
It is opened in the center of the plate body.
Further illustrate, dehydration groove is mutually formed between annular boss described in each two, the width of the dehydration groove is 3-
6mm；The depressed part is provided with some effluent troughs, and the effluent trough is through the annular boss, and the dehydration groove is by described
Effluent trough connects the delivery port in membrane filter plate；The width of the effluent trough is 5-10mm.
Further illustrate, one or more layers superposition bulge loop is provided with the top of each annular boss；The superposition
The width of bulge loop is gradually reduced from bottom to top layer.
Further illustrate, the direction extended along at the top of each annular boss offers groove.
Further illustrate, the texture structure on the barrier film of the tow sides of the plate core is symmetrical by axle of plate core
Or mutual dislocation distribution.
Further illustrate, the distance d1 and annular boss described in each two of the peak of the annular boss to minimum point it
Between distance c1 ratio be 0.5:1~1:0.5.
Further illustrating, be provided with some support columns on the barrier film, the support column is circularly and evenly distributed, and
It is divided into two groups of inner ring and outer ring according to circumference；One group positioned at inner ring is four to six, a diameter of 30- of each support column
50mm；One group positioned at outer ring is six to eight, a diameter of 50-70mm of each support column.
Further illustrate, the support column is frustum cone structure, and the periphery of the frustum cone structure offers annular effluent trough, described
Annular effluent trough is connected in the dehydration groove.
Beneficial effects of the present invention：By being provided with texture structure on the surface of barrier film, that is, utilize the annular boss
Stereochemical structure, there is provided uniform supporting force, while the depression filter cloth is effectively fitted in the surface of the texture structure,
And downward etat lacunaire can be formed in the recess of the texture structure, so as to not only increase the intensity of filter press plate, impact resistance,
Long lifespan, reduces the cost of middle sheet material, and considerably increases press filtration area, and efficiency of press filtering is high, and floor space is small.
In addition, making to work as circular diaphragm filter plate during being squeezed by the texture structure, can not only pass through
The pressure transmission of barrier film and realize the effect of twice pressing, and further make use of annular boss to mutually form convex-concave simultaneously
Design feature, material is realized the extruding of more direction power, especially material form the sandwich of layers of filter cake can be along the knot of convex-concave
Configuration extruding deflecting at an acute angle, so as to effectively reduce sandwich moisture content aggregation, improve material mass dryness fraction；And further change extruding
The runner of caused moisture content, increases the flow direction of moisture content, and extrudes structure of the section along convex-concave and can form uniform water route, realizes
Prestissimo in press filtration chamber by discharging, and dehydration flow velocity faster, effectively reduces time of filter pressing, and dewatering is good, its filter press plate it is whole
Body structure is simpler；Therefore the texture structure not only has the function that to increase press filtration area, and substantially increases material
It is dehydrated mass dryness fraction and there is more effective water conservancy diversion filtrate.
Brief description of the drawings
Fig. 1 is the front view of the circular diaphragm filter plate of one embodiment of the invention；
Fig. 2 is the profile of the circular diaphragm filter plate of one embodiment of the invention；
Fig. 3 is the sectional stereogram of the circular diaphragm filter plate of one embodiment of the invention；
Wherein：Plate core 1, barrier film 2, support column 21, annular effluent trough 211, charging aperture 4, depressed part 5, texture structure 51, ring
Shape boss 511, groove 512, groove 513 is dehydrated, effluent trough 6, is superimposed bulge loop 7.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
A kind of circular diaphragm filter plate with lines formula filtration, including plate core 1, barrier film 2, depression filter cloth and charging aperture
4；The barrier film 2 is fixedly installed in the tow sides of the plate core 1, and the surface of the barrier film 2 is provided with what is caved inward
Depressed part 5, the surface of the depressed part 5 are provided with texture structure 51；The texture structure 51 is by several concentric ring-steps
511 compositions；The depression filter cloth is covered in the surface of the barrier film 2, and is formed in the recess of texture structure 51 to recessed
The state of falling into；The charging aperture 4 is opened in the center of the plate body 1.
A kind of circular diaphragm filter plate with lines formula filtration proposed by the present invention, by being set on the surface of barrier film 2
Texture structure 51 has been put, that is, has utilized the stereochemical structure of the annular boss 511, there is provided uniform supporting force, while make institute
State depression filter cloth and effectively fit in the surface of the texture structure 51, and can be formed downwards in the recess of the texture structure 51
Etat lacunaire, so as to not only increase the intensity of filter press plate, impact resistance, long lifespan, reduce the cost of middle sheet material, and greatly
Big to add press filtration area, efficiency of press filtering is high, and floor space is small.
In addition, by the texture structure 51, when circular diaphragm filter plate is during being squeezed, can not only pass through
The pressure transmission of barrier film and realize the effect of twice pressing, and further make use of annular boss 511 to mutually form simultaneously
The design feature of convex-concave, material is set to realize the extruding of more direction power, the sandwich of layers of especially material formation filter cake can be along convex-concave
Structure form acute angle extruding deflecting, so as to effectively reduce the aggregation of sandwich moisture content, improve material mass dryness fraction；And further change
The runner of moisture content caused by extruding, increases the flow direction of moisture content, and extrudes structure of the section along convex-concave and can form uniform water route,
Prestissimo is realized by being discharged in press filtration chamber, dehydration flow velocity faster, effectively reduces time of filter pressing, dewatering is good, its filter press plate
Overall structure it is simpler；And during discharging is carried out, worked by using the outward bulge of barrier film 2, so that its
The concavo-convex texture structure 51 on surface also integrally can outwards be heaved, so as to reach more fully discharging effect；Therefore the line
Line structure not only has the function that to increase press filtration area, and substantially increases the dehydration mass dryness fraction of material and have and more effectively lead
Flow the effect of filtrate.
Further illustrate, dehydration groove 513 is mutually formed between annular boss 511 described in each two, the dehydration groove 513
Width is 3-6mm；The depressed part 5 is provided with some effluent troughs 6, and the effluent trough 6 is described de- through the annular boss
Tank 513 is connected the delivery port in membrane filter plate by the effluent trough 6；The width of the effluent trough 6 is 5-10mm.By two-by-two
The adjacent annular boss 511 forms the dehydration groove of one fixed width, and preliminary convergence is formed in order to extrude caused moisture content,
Moisture content is again flowed into by the dehydration groove again and forms secondary convergence into the effluent trough 6, finally by the row of effluent trough 6
Go out to the water outlet, so as to accelerate the velocity of discharge of the moisture content in press filtration chamber, and be dehydrated more thoroughly, stably, avoid
Moisture content remains.Wherein, the effluent trough 6 that the depressed part 5 opens up is opened up along the bottom of the annular boss 511.
Further illustrate, the top of each annular boss 511 is provided with one or more layers superposition bulge loop 7；It is described
The width of superposition bulge loop 7 is gradually reduced from bottom to top layer.It is with the number of plies increase of set superposition bulge loop 7, then described recessed
The directly proportional increase of area of fitting, that is, make full use of the texture structure 51 to be effectively increased press filtration area required for falling into filter cloth,
Its width is gradually decreased from bottom to top layer simultaneously, and effective dispersive stress effect, structure is more stable, improves superposition bulge loop 7
Intensity, to meet the crushing strength of membrane filter plate.Wherein, the thickness of the plate core is 25mm-70mm, the annular boss 511
Thickness be 20-45mm, width 20-45mm, the thickness of the barrier film 2 is 3-5mm.
Further illustrate, the direction that the top of each annular boss 511 extends along offers groove 512.Pass through
There is provided the groove 512, and the structure of convex-concave is formd on the surface of barrier film 2 using groove 512 and boss structure, so as to
It can further be hidden in the structure of convex-concave and receive material, the material for making may filter that greatly increases, and efficiency of press filtering is higher, reduces press filtration consumption
Can, it is effectively save to use material cost.
Further illustrate, the texture structure 51 on the barrier film 2 of the tow sides of the plate core 1 is mutual by axle of plate core
The distribution of symmetrical or mutual dislocation.Texture structure 51 is arranged to symmetrical or mutual dislocation distributed architecture, i.e., when two pieces of barrier films
When filter plate is bonded to each other, the texture structure 51 on its surface of depressed part 5 has mutually formed the design feature of convexo-convex or convex-concave, its purpose
It is：After material is filled from the charging hole of filter plate to press filtration intracavitary, and under interaction force, press dewatering is carried out, by convex
Under the active force of convex or convex-concave structure, material is set to realize that the extruding of more direction power, especially material form the sandwich of filter cake
Layer can form acute angle extruding deflecting along the structure of convexo-convex or convex-concave, so as to effectively reduce sandwich moisture content aggregation, improve material mass dryness fraction,
Reduce time of filter pressing；The runner of moisture content caused by extruding is changed simultaneously, increases the flow direction of moisture content, and extrude section along convexo-convex
Or the structure of convex-concave can form the water route of ◇ ◇ or S types, dewatering is good.
Further illustrate, distance d1 of the peak to minimum point of the annular boss 511 and convex annular described in each two
The distance between platform 511 c1 ratio is 0.5:1~1:0.5.Preferably, when the texture structure 51 is using the plate body as axle phase
When mutually symmetrical, then the aforementioned proportion is 1:1, and now depression filter cloth can be formed further tiltedly in the recess of texture structure
Face angle degree is the downward etat lacunaire of 45° angle, and so as to considerably increase press filtration area, dehydrating effect is more abundant, greatly improves
The mass dryness fraction of material.
Further illustrate, be provided with some support columns 21 on the barrier film 2, the support column 21 circumferentially uniformly divides
Cloth, and it is divided into two groups of inner ring and outer ring according to circumference；Be four to six positioned at one group of inner ring, each support column it is a diameter of
30-50mm；One group positioned at outer ring is six to eight, a diameter of 50-70mm of each support column.When two pieces of membrane filter plates are mutual
Fitting, when being squeezed to the material of press filtration intracavitary, then the corresponding support column 21 of two pieces of membrane filter plates then mutually pushes against, and leads to
Cross using support column 21 facing each other to ensure membrane filter plate when bearing the crunch of sewage, occur rolling shows
As making the squeezing of membrane filter plate more stable.Simultaneously always according to the loading characteristic of filter plate of different shapes, the support column is set
Different distributed architectures is counted, and is directed to the situation of different stress sizes, is grouped to match the support column of different-diameter,
The rocking in pressure-filtering process of filter plate is not only effectively avoided, while reduces the unnecessary waste of middle sheet material, it is different with two groups
The support column of diameter is collocated with each other, and makes to be more uniformly stressed, and improves the stability of membrane filter plate.
Further illustrate, the support column 21 is frustum cone structure, and the periphery of the frustum cone structure offers annular effluent trough
211, the annular effluent trough 211 is connected in the dehydration groove.Annular effluent trough is offered in the periphery of the support column 21
211, so that the material around support column 21 can converge at institute by moisture content caused by extruding along its frustum cone structure side surface
After stating in annular effluent trough 211, then flow into the dehydration groove, avoid moisture content from remaining.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (8)
- A kind of 1. circular diaphragm filter plate with lines formula filtration, it is characterised in that：Including plate core, barrier film, depression filter cloth And charging aperture；The barrier film is fixedly installed in the tow sides of the plate core, and the surface of the barrier film is provided with and concaved Sunken depressed part, the surface of the depressed part are provided with texture structure；The texture structure is by several concentric ring-steps groups Into；The depression filter cloth is covered in the surface of the barrier film, and forms downward etat lacunaire in the recess of texture structure；Institute State the center that charging aperture is opened in the plate body.
- A kind of 2. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：Every two Dehydration groove is mutually formed between the individual annular boss, the width of the dehydration groove is 3-6mm；The depressed part is provided with some Effluent trough, the effluent trough connect going out in membrane filter plate through the annular boss, the dehydration groove by the effluent trough The mouth of a river；The width of the effluent trough is 5-10mm.
- A kind of 3. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：Each One or more layers superposition bulge loop is provided with the top of the annular boss；It is described superposition bulge loop width from bottom to top layer by It is decrescence small.
- A kind of 4. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：Each The direction extended along at the top of the annular boss offers groove.
- A kind of 5. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：It is described Texture structure on the barrier film of the tow sides of plate core using plate core as axle symmetrically or mutual dislocation is distributed.
- A kind of 6. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：It is described The distance between annular boss c1 ratio described in the peak of annular boss to the distance d1 and each two of minimum point is 0.5:1 ~1:0.5.
- A kind of 7. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：It is described Some support columns are provided with barrier film, the support column is circularly and evenly distributed, and is divided into inner ring and outer ring according to circumference Two groups；One group positioned at inner ring is four to six, a diameter of 30-50mm of each support column；Positioned at one group of outer ring for six to Eight, a diameter of 50-70mm of each support column.
- A kind of 8. circular diaphragm filter plate with lines formula filtration according to claim 1, it is characterised in that：It is described Support column is frustum cone structure, and the periphery of the frustum cone structure offers annular effluent trough, and the annular effluent trough is connected in described de- Tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042288.9A CN107626123A (en) | 2017-10-30 | 2017-10-30 | Circular diaphragm filter plate with line formula filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042288.9A CN107626123A (en) | 2017-10-30 | 2017-10-30 | Circular diaphragm filter plate with line formula filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107626123A true CN107626123A (en) | 2018-01-26 |
Family
ID=61106530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711042288.9A Pending CN107626123A (en) | 2017-10-30 | 2017-10-30 | Circular diaphragm filter plate with line formula filtration |
Country Status (1)
| Country | Link |
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| CN (1) | CN107626123A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197112A (en) * | 1986-02-25 | 1987-08-31 | クリンカウ ウント コンパニ− ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Membrane filter plate for filter press equipped with supportboss |
| US4781829A (en) * | 1986-02-25 | 1988-11-01 | Reimund Stanik | Membrane filter plate for a filter press or the like with support bose bosses |
| JPH10235108A (en) * | 1997-02-27 | 1998-09-08 | Kurita Mach Mfg Co Ltd | Filter plate for filter press |
| CN202342964U (en) * | 2011-10-14 | 2012-07-25 | 郑州华一高科工程有限公司 | Air bag type efficient solid-liquid separation press filter |
| CN204233839U (en) * | 2014-08-19 | 2015-04-01 | 佛山市金凯地过滤设备有限公司 | A kind of filter press filter board equipment filtered out impurities |
| CN104740907A (en) * | 2015-03-26 | 2015-07-01 | 安徽省通源环境节能有限公司 | Filter plate component of sludge high dry dehydration filter press |
| CN205145701U (en) * | 2015-10-27 | 2016-04-13 | 陈刚 | A filter pressing device for undercurrent pressure filter |
| CN206325273U (en) * | 2016-12-30 | 2017-07-14 | 佛山市金凯地过滤设备有限公司 | It is a kind of to assemble firm autoclave diaphragm filter plate |
| CN206508610U (en) * | 2016-12-30 | 2017-09-22 | 佛山市金凯地过滤设备有限公司 | A kind of constitutionally stable high pressure circular diaphragm filter plate |
| CN207520668U (en) * | 2017-10-30 | 2018-06-22 | 佛山市金凯地环保工程有限公司 | Circular diaphragm filter plate with line formula filtration |
-
2017
- 2017-10-30 CN CN201711042288.9A patent/CN107626123A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197112A (en) * | 1986-02-25 | 1987-08-31 | クリンカウ ウント コンパニ− ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Membrane filter plate for filter press equipped with supportboss |
| US4781829A (en) * | 1986-02-25 | 1988-11-01 | Reimund Stanik | Membrane filter plate for a filter press or the like with support bose bosses |
| JPH10235108A (en) * | 1997-02-27 | 1998-09-08 | Kurita Mach Mfg Co Ltd | Filter plate for filter press |
| CN202342964U (en) * | 2011-10-14 | 2012-07-25 | 郑州华一高科工程有限公司 | Air bag type efficient solid-liquid separation press filter |
| CN204233839U (en) * | 2014-08-19 | 2015-04-01 | 佛山市金凯地过滤设备有限公司 | A kind of filter press filter board equipment filtered out impurities |
| CN104740907A (en) * | 2015-03-26 | 2015-07-01 | 安徽省通源环境节能有限公司 | Filter plate component of sludge high dry dehydration filter press |
| CN205145701U (en) * | 2015-10-27 | 2016-04-13 | 陈刚 | A filter pressing device for undercurrent pressure filter |
| CN206325273U (en) * | 2016-12-30 | 2017-07-14 | 佛山市金凯地过滤设备有限公司 | It is a kind of to assemble firm autoclave diaphragm filter plate |
| CN206508610U (en) * | 2016-12-30 | 2017-09-22 | 佛山市金凯地过滤设备有限公司 | A kind of constitutionally stable high pressure circular diaphragm filter plate |
| CN207520668U (en) * | 2017-10-30 | 2018-06-22 | 佛山市金凯地环保工程有限公司 | Circular diaphragm filter plate with line formula filtration |
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