CN105944419B - Filter press filter board with split type squeeze diaphragm - Google Patents

Filter press filter board with split type squeeze diaphragm Download PDF

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Publication number
CN105944419B
CN105944419B CN201610574237.XA CN201610574237A CN105944419B CN 105944419 B CN105944419 B CN 105944419B CN 201610574237 A CN201610574237 A CN 201610574237A CN 105944419 B CN105944419 B CN 105944419B
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diaphragm
filter plate
main body
filter
plate main
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CN105944419A (en
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陈振军
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Kang Mingke Adams (beijing) Electromechanical Equipment Co Ltd
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Kang Mingke Adams (beijing) Electromechanical Equipment Co Ltd
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Priority to CN201610574237.XA priority Critical patent/CN105944419B/en
Priority to CN201811163990.5A priority patent/CN109364543B/en
Publication of CN105944419A publication Critical patent/CN105944419A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D25/00Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12Filter presses, i.e. of the plate or plate and frame type

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The present invention provides a kind of membrane filter plates of filter press, comprising: filter plate main body 4, thereon with the diaphragm positioning groove 2 processed;Diaphragm 3;Diaphragm pressing plate 1, for diaphragm 3 to be pressed abd fixed on filter plate main body, it is characterised in that: multiple diaphragms 3 are fixed in each filter plate main body 4.Fold 5 is prefabricated on each diaphragm 3, when the filter chamber for including membrane filter plate is filled, filter plate main body 4 is pressed to by filter material in the slurries and/or slurries that diaphragm 3 with fold 5 is filled, and in the inflated squeezing then carried out, the compressed air that diaphragm 3 is blown between diaphragm 3 and filter plate main body 4 is agitated, and the movement for leaving filter plate main body 4 is generated, filter cake is caused to squeeze.Fold 5 has one of following form: a generally circular protrusion, generally concentric with the circular diaphragm 3 at place;One section configuration is the circular ring structure of " V " font;And 2 to 3 section configurations are the circular ring structure being nested of " V " font.

Description

Filter press filter board with split type squeeze diaphragm
Technical field
The present invention relates to the filter press filter board and filter press that have split type squeeze diaphragm, and corresponding filter-pressing method and Diaphragm belongs to solid-liquid pressure-filtering separation field.
Background technique
Filters pressing separation is a kind of common solid-liquid separation technique.In a kind of traditional filter press, multiple filter plates with can Mobile mode juxtaposition is between the fixing end and movable end of filter press, by the mobile movable end of hydraulic cylinder, thus all Filter plate is pressed together, to form closing filter chamber between filter plate.Then slurry is squeezed into filter chamber with charging pump, to be consolidated Liquid separation.Separation of solid and liquid is generally divided into filters pressing, removal of filtrate by air, discharge step.In filters pressing step, form closing filter chamber it Afterwards, in slurry from feeding inlet enhancing perfusion to filter chamber, by the effect for the filter cloth being arranged in filter chamber, solid in slurry at Part is left in filter chamber, and liquid component then penetrates filter cloth and flows out from the outlet of each filter chamber.Slurry perfusion is usually high pressure Perfusion.With the progress of perfusion, the ratio of the solid content in filter chamber is increasing, and has finally been filled with entire filter chamber and shape At filter cake.After solid content forms filter cake full of filter chamber, stop material feeding.Then carry out removal of filtrate by air.In removal of filtrate by air Compressed air is blown into filter cake and carries out air-water displacement, to take away the moisture in filter cake by step.In discharge step, by filters pressing The hydraulic cylinder of machine opens all filter chamber substeps, and filter cake is fallen by gravity, to complete discharging.
And for materials such as some metalliferous minerals for being difficult to be dehydrated, tailing and clays, it is only de- by filter-press dehydration and air blowing Water is not met by the requirement of more low-water-content.In Chinese patent ZL 99125926.2, a kind of solution of compressible filter chamber is described Certainly scheme, wherein by using the elastic sealing element that filter plate periphery is arranged in, so that passing through pressure in the state of filter chamber closing Contracting elastic sealing element, so that the width of filter chamber is adjustable, so being capable of filter in air dehydration step to being in filter chamber Cake is squeezed.
But the solution of the compressible filter chamber has serious limitation.First, the power for compressing filter chamber is needed by cylinder pressure It provides, and the design pressure of cylinder pressure is limited, and first has to the residue for closing filter chamber, after completing filter chamber closing Pressure is very limited.Second, since filter chamber compression is to be necessarily accompanied with the compression of elastic sealing element, and the elasticity of elastic sealing element is returned Multiple power is increased with the increasing of suppressed range, in this way, originally limited residual compression has been mainly used for that the elasticity is overcome to return cylinder pressure Multiple power, without acting on filter cake, this is clearly the defect in a serious design principle.
It is a kind of to be come into being using the new equipment and new process of diaphragm pressing dehydration in order to overcome the defect.Current one In the chamber-type press filter design with squeeze diaphragm of kind mainstream, it is mounted alternately with the filter plate of two kinds of different structures.One is bands There is the filter plate of pan feeding pipeline, filter plate main body makes of steel plate, and modified poly ethylene of the installation with vertical groove is moulded in steel plate two sides Expect that liner plate, groove are used to smoothly import filtrate water the drain pipe outflow of filter plate lower part;Another kind is referred to as membrane filter plate, filter Plate main body is also steel plate, installs elastic rubber squeeze diaphragm in steel plate two sides.It is outstanding in the two sides of above two filter plate It hangs and special filter cloth is installed;In diaphragm of rubber towards the side of filter chamber, with densely arranged small boss, convenient for the filter filtered out The drain pipe of liquid water inflow filter plate lower part.During the work time, the above two filter plate for being alternately arranged setting is pressed on filter press Together, filter chamber is formed between adjacent filter plate, after being filled with filter chamber by filter material, to the diaphragm and filter plate of membrane filter plate It is blown into pressure-air between main body, diaphragm of rubber is agitated to be deformed, filter cake (i.e. in filter chamber by filter material) is squeezed Pressure, squeezes out the excessive moisture in filter cake, and filter cake is made to meet the requirement of more low-water-content.
Traditionally, diaphragm is rectangular monolithic construction, and size is substantially suitable with filter chamber.
The rectangular diaphragm filter-plate structure of traditional monoblock type is shown in Figure 1A -1E.In Figure 1A -1E, label 1 is the rectangular of steel plate production Diaphragm pressing plate, label 13 are multiple disk-shaped diaphragm pressing plates of steel plate production, are provided commonly for for diaphragm being fixed and clamped in filter plate master On body;Label 2 is the diaphragm positioning groove processed in filter plate main body, and label 41 is monoblock type square rubber diaphragm;Label 51 be steel filter plate main body, and label 6 is to the air inlet pipe fitting for being blown into pressure-air between diaphragm and filter plate main body;Label 7 be to The air inlet of pressure-air is blown between diaphragm and filter plate main body, label 8 is filter plate (the i.e. aseptate filter with pan feeding pipeline Plate) pan feeding hole site.
As a concrete instance, in a specific embodiment, the side length of filter plate shown in figure 1A is about 1820 millimeters. The details of membrane surface according to a specific embodiment is shown in Fig. 1 E, is provided with small boss on the surface of diaphragm, is being schemed These small boss are regularly arranged with 20 millimeters of pitch in the specific example of 1E.Fig. 1 D shows small in a specific embodiment The size of boss.Above-mentioned size is not restrictive.
Summary of the invention
According to an aspect of the invention, there is provided a kind of membrane filter plate of filter press, comprising: filter plate main body, filter plate With the diaphragm positioning groove processed in main body;Diaphragm;Diaphragm pressing plate, for diaphragm to be pressed abd fixed on filter plate main body,
It is characterized by:
Multiple diaphragms are fixed in each filter plate main body.
According to another aspect of the present invention, the diaphragm of above-mentioned membrane filter plate is provided, it is characterised in that on the diaphragm It is prefabricated with fold.
According to a further aspect of the invention, the filter press including above-mentioned membrane filter plate is provided.
According to a further aspect of the invention, the slurries filters pressing based on the filter press for including above-mentioned membrane filter plate is provided Method, characterized by comprising:
Slurry to be filtered is pumped into filter chamber, the wall of the filter chamber includes the membrane filter plate, thus make the slurry and/ Or the solid state component in the slurry squeezes the diaphragm towards filter plate main direction;
Pressure-air is blown between diaphragm and filter plate main body, so that diaphragm be made to move away from the direction of filter plate main body It is dynamic, and filter cake is squeezed, the filter cake includes the solid state component in the slurry.
A further aspect according to the present invention, in the above method, when pressure-air is blown into diaphragm and filter plate master When between body to keep diaphragm mobile away from the direction of filter plate main body and squeeze filter cake, the movement of diaphragm is adjoint Diaphragm stress and/or diaphragm deflection are absorbed by the fold.
Pressure-air in the above method, is being blown into diaphragm and filter plate master by a further aspect according to the present invention Before between body, the solid state component in the slurry and/or the slurry oppresses diaphragm, so that diaphragm is moved towards filter plate main body It is dynamic, to eliminate the space formed due to fold and between diaphragm and filter plate main body before being pumped into the slurry.
Detailed description of the invention
Figure 1A -1E shows the rectangular diaphragm filter-plate structure of traditional monoblock type.
Fig. 2A -2E shows the structure after the split type membrane filter plate assembling of circle according to an embodiment of the invention.
Fig. 3 A and 3B show the main body steel of the split type membrane filter plate of circle according to one example embodiment Plate weldment structure.
Fig. 4 A and 4B show the diaphragm knot of the split type membrane filter plate of circle according to one example embodiment Structure.
Specific embodiment
The present inventor passes through long-term practical observation, research and summary, it was found that following problem exists in the prior art:
1, since the diaphragm 41 of conventional membrane filter plate is whole square structure, when the compressed air that diaphragm 41 is blown into is agitated When deformation, the stress distribution on diaphragm is uneven, and there are serious stress concentration phenomenons;Further and specifically, due to every 41 overall dimensions of film are larger, and except the position on the periphery of diaphragm 41, quadrangle and plup inlet 8, diaphragm 41 is by rectangular steel diaphragm Except pressing plate 1 is fixed and clamped, also the intermediate position of diaphragm 41 some positions be provided with the lesser disc of multiple diameters every Membrane pressure plate 13, to carry out more reliable fixation to diaphragm.When the compressed air that diaphragm 41 is blown into agitates deformation, these diaphragms Pressing plate 1, plup inlet 8,13 periphery of disk-shaped diaphragm pressing plate diaphragm 41 deflection it is larger, stress concentration phenomenon is serious, easily leads Cause 41 fatigue damage of diaphragm at these positions;Especially when material fills discontented filter chamber, it is easier when blasting pressure-air Diaphragm 4 is caused to tear extremely;
2, since diaphragm 41 is whole, even one whole diaphragm only has damage small at one, whole diaphragm just cannot be after Continuous to use, 41 material cost of diaphragm of whole of replacement is high, and time-consuming for replacement repairing, and labour cost is high, reduces equipment and starts rate.
The present inventor on the basis of above-mentioned practical observation, research and summary, propose it is a kind of have it is split type it is round every The solution of the membrane filter plate of film is low etc. with diaphragm long service life, maintenance replacement cost compared to conventional membrane filter plate Advantage.Meanwhile the present inventor has found by actual test, when with muti-piece circular diaphragm instead of original single whole diaphragm it Afterwards, although diaphragm no longer constitutes whole covering to membrane filter plate, design can still be reached to the extrusion dehydration of filter cake It is required that.Split type circular diaphragm scheme of the invention also has the advantages that other and/or beneficial effect, as described below.
Structure after the split type membrane filter plate assembling of circle according to an embodiment of the invention is shown in Fig. 2A -2E.Scheming In 2A-2E, label 1 is the circular diaphragm pressing plate of steel plate production, for being fixed and clamped diaphragm 3 in filter plate main body;Label 2 For the diaphragm positioning groove processed in filter plate main body, label 3 is round split type diaphragm of rubber;Label 4 is filter plate main body, Label 5 indicates the fold precast on diaphragm.In one embodiment, filter plate main body 4 is steel.
The main body steel plate weldment structure of the split type membrane filter plate of circle according to one example embodiment is shown in Fig. 3 A and 3B.In figures 3 a and 3b, label 301 is to the air inlet pipe fitting for being blown into pressure-air between diaphragm and filter plate main body;Mark Numbers 302 is, to the air inlet for being blown into pressure-air between diaphragm and filter plate main body, label 303 are between each monomer diaphragm steel plate Vent cap.The embodiment of Fig. 3 A and 3B are only exemplary;Under basic conception of the invention, other air inlet pipe fittings, Air inlet, vent cap setting are also obvious.
The membrane configuration of the split type membrane filter plate of circle according to one example embodiment is shown in Fig. 4 A and 4B.? In Fig. 4 A and 4B, label 401 is the fold precast.The embodiment of Fig. 4 A and 4B are only exemplary;At of the invention one In embodiment, it is " V " word that fold, which also can behave as the circular ring structure that a section configuration is " V " font or 2 to 3 section configurations, The structure that the annulus of shape is nested.In the embodiment according to the present invention as shown in Fig. 2A -2D, Fig. 3 A and 3B and Fig. 4 A and 4B, The diaphragm of every piece of membrane filter plate includes four pieces of circular diaphragms 3;Fold 5 and 401 has been produced on diaphragm 3 in advance.As shown in Figure 2 C, exist In one specific embodiment, when filter chamber is not filled, fold 5 corresponds between the center portion and filter plate main body 4 of diaphragm 3 A gap.In exemplary embodiment shown in fig. 2 C, there are about 20 millimeters in the gap;The numerical value is non-limiting.Root According to a preferred embodiment, as shown in Fig. 2 B, 2C, 4B, fold 5 and 401 constitutes a generally circular protrusion, with circle Diaphragm 3 is generally concentric.
Obviously, the number of the diaphragm configured on each filter plate is not limited to four.Under the present general inventive concept, other The diaphragm number of number is also to be expected.
Obviously, the shape of each diaphragm is also not necessarily limited to circle.For example, diaphragm be also possible to rectangle, etc..These diaphragms Shape belongs to the scope of the present invention.Using rectangle diaphragm, fold can be the " v " shaped annulus knot of section Structure or a generally circular protrusion are also possible to the disconnected of other suitable shapes (such as generally round rectangle) Face is in " V "-shape structure or protrusion.
Fig. 2 D gives the example embodiment of the small boss on membrane surface according to the present invention, and there is shown small boss Associated exemplary size (unit be millimeter) in the figure.Fig. 2 E gives the exemplary cloth of these small boss on the diaphragm surface Office.Above-mentioned size and layout are all non-limiting.
By precasting diaphragm fold 5 and 401, when filter chamber is filled, fold is formed by the convex portion quilt of diaphragm 3 The slurries of filling and/or filter plate main body 4 is pressed to by filter material in slurries, and in the inflated squeezing then carried out, diaphragm 3 The pressure-air being blown between diaphragm 3 and membrane filter plate main body 4 is agitated, and generates the movement for leaving membrane filter plate main body 4, Filter cake is caused to squeeze, the excessive moisture in filter cake is squeezed out and/or elimination moisture is extruded the gap reserved in rear filter cake, make The requirement of filter cake satisfaction more low-water-content.Obviously, in the case where the embodiment as shown in Fig. 2 B, 2C, 4B, diaphragm 3 is above-mentioned Above-mentioned move under the agitating of pressure-air is partially to reply deformation;For example, in embodiment shown in fig. 2 C, if every Above-mentioned deformation of the film 3 under the agitating of above-mentioned pressure-air since the surface of filter plate main body 4 is along the direction perpendicular to filter plate When being less than 20 millimeters, then the reply that all belongs to of above-mentioned deformation deforms;And when the deformation is along the side perpendicular to filter plate When to more than 20 millimeters, then the 20 millimeters of parts started in the deformation are to reply deformation.To prefabricated fold 5 and 401 (protrusion) just plays the role of " answering in advance ", so that the general extension amplitude of deformation experienced in whole work process of diaphragm 3 obtains Corresponding reduction is arrived, it may be assumed that the protrusion (fold) of diaphragm is offset or avoids at least part of diaphragm deflection, and diaphragm is reduced Stretcher strain amount, improve the anti-fatigue ability of diaphragm.It and is the " v " shaped circular ring structure of section in fold 5 and 401 In the case of, above-mentioned movement of the diaphragm 3 under the agitating of above-mentioned pressure-air, which not will cause then, there is excessive stress on diaphragm 3, Diaphragm is avoided by fatigue damage.
Compared with the diaphragm solutions of traditional filter press, the beneficial effect comprise that
1) it since diaphragm of the invention and diaphragm pressing plate are circle, effectively prevents the diaphragm that square pressing plate is be easy to cause and becomes Stress concentration phenomenon when shape can greatly prolong diaphragm service life;
2) due to diaphragm be it is split type, once a certain piece of diaphragm failures, it is only necessary to replace or repair this block damage diaphragm , other diaphragms do not need to dismantle, and save replacement repairing time and expense, facilitate the replacement or repairing of diaphragm yet;
3) by precasting diaphragm fold (protrusion) 5, when filter chamber is filled, raised diaphragm 3 is pressed towards filter plate main body 4, in the inflated squeezing then carried out, the pressure-air that diaphragm 3 is blown between diaphragm 3 and filter plate main body 4 is agitated and is produced Change shape, this be deformed into be partially diaphragm reply deformation, thus at least partly offset and/or avoid diaphragm elongation become Shape reduces the stretcher strain amount of diaphragm 3, improves the anti-fatigue ability of diaphragm 3;Alternatively, being " V " word in fold 5 and 401 In the case where the circular ring structure of shape section, movement of the diaphragm 3 under the agitating of pressure-air not will cause on diaphragm 3 occur it is excessive Stress, avoid diaphragm by fatigue damage;
4) due to split type diaphragm according to the present invention, relative to traditional whole diaphragm, the area of single diaphragm reduces, The die cost of diaphragm production is reduced, and improves the yield rate of the diaphragm manufacturing;
5) due to the shortening of the extension of membrane life and repair and replacement diaphragm used time, setting for filter press product can be significantly improved Standby to use serviceability rate, the production capacity of its design can be reached by advantageously ensuring that filter press at runtime;Secondly, diaphragm replacing or repairing The saving of expense reduces equipment operating cost.All of these factors taken together can all greatly enhance the market competition of filter press product Power.

Claims (15)

1. the membrane filter plate of filter press, comprising:
Filter plate main body (4), with the diaphragm positioning groove (2) processed in filter plate main body (4),
Diaphragm (3),
Diaphragm pressing plate (1), for diaphragm (3) to be pressed abd fixed on filter plate main body (4),
It is characterized by:
Each filter plate main body (4) at least side be it is such, i.e., be fixed on the side multiple diaphragms (3).
2. membrane filter plate according to claim 1, it is characterised in that the shape of each diaphragm (3) is selected from following shape One kind out:
Circle,
Rectangle.
3. membrane filter plate according to claim 1, it is characterised in that fold (5) are prefabricated on each diaphragm (3),
Wherein
When the filter chamber for including above-mentioned membrane filter plate is filled, the slurries that are filled of diaphragm (3) with the fold (5) and/ Or filter plate main body (4) are pressed to by filter material in slurries, and in the inflated squeezing then carried out, diaphragm (3) be blown into every Compressed air between film (3) and filter plate main body (4) is agitated, and generates the movement for leaving filter plate main body (4), is caused to filter cake It squeezes.
4. membrane filter plate described in one of -3 according to claim 1, it is characterised in that further comprise:
To the air inlet (302) for being blown into compressed air between diaphragm (3) and filter plate main body (4);
Vent cap (303) between each diaphragm.
5. membrane filter plate described in one of -3 according to claim 1, it is characterised in that:
Fixed there are four circular diaphragm (3) on each filter plate main body (4), these circular diaphragms (3) are divided into upper and lower two rows, every row Including two circular diaphragms (3).
6. membrane filter plate according to claim 3, it is characterised in that:
The multiple diaphragm (3) is circular diaphragm, correspondingly, the diaphragm positioning groove (2) be it is circular,
The fold (5) has one of following form:
A generally circular protrusion, it is generally concentric with the circular diaphragm (3) at place;
One section configuration is the circular ring structure of " V " font;And
2 to 3 section configurations are the circular ring structure being nested of " V " font.
7. a kind of diaphragm (3) of the membrane filter plate for filter press, in which:
The membrane filter plate includes:
Filter plate main body (4), with the diaphragm positioning groove (2) processed in filter plate main body (4), each filter plate main body (4) is at least Side be it is such, i.e., with multiple for fixing the diaphragm positioning grooves (2) of diaphragm (3) on the side,
Diaphragm (3) is suitable for being pressed abd fixed on filter plate main body (4) by diaphragm pressing plate (1),
It is characterized in that being prefabricated with fold (5) on the diaphragm (3).
8. diaphragm (3) according to claim 7, it is characterised in that the shape of each diaphragm (3) is selected from following shape One kind out:
Circle,
Rectangle.
9. diaphragm (3) according to claim 7, it is characterised in that:
When the filter chamber for including above-mentioned membrane filter plate is filled, the slurries that are filled of diaphragm (3) with the fold (5) and/ Or filter plate main body (4) are pressed to by filter material in slurries, and in the inflated squeezing then carried out, diaphragm (3) be blown into every Compressed air between film (3) and filter plate main body (4) is agitated, and generates the movement for leaving filter plate main body (4), is caused to filter cake It squeezes.
10. the diaphragm (3) according to one of claim 7-9, wherein the membrane filter plate further comprises:
To the air inlet (302) for being blown into compressed air between diaphragm (3) and filter plate main body (4);
Vent cap (303) between each diaphragm.
11. diaphragm (3) according to claim 7, it is characterised in that diaphragm (3) circular diaphragm, and the fold (5) has One of following form:
A generally circular protrusion, it is generally concentric with the circular diaphragm (3) at place;
One section configuration is the circular ring structure of " V " font;And
2 to 3 section configurations are the circular ring structure being nested of " V " font.
12. include according to claim 1-one of 6 described in membrane filter plate filter press.
13. the slurries filter-pressing method based on the filter press for including membrane filter plate according to claim 3, it is characterised in that packet It includes:
Slurry to be filtered is pumped into filter chamber, the wall of the filter chamber includes the membrane filter plate, to make the slurry and/or institute The solid state component stated in slurry squeezes the diaphragm towards filter plate main body (4),
Pressure-air is blown between diaphragm (3) and filter plate main body (4), to make diaphragm (3) away from filter plate main body (4) Direction is mobile, and squeezes filter cake, and the filter cake includes the solid state component in the slurry.
14. according to the method for claim 13, it is characterised in that:
When pressure-air being blown between diaphragm (3) and filter plate main body (4) to making diaphragm (3) away from filter plate main body (4) Direction it is mobile and when squeezing filter cake, the adjoint diaphragm stress of the movement of diaphragm (3) and/or diaphragm deflection are by the pleat Wrinkle (5) is absorbed.
15. according to the method for claim 13, it is characterised in that:
Before pressure-air being blown between diaphragm (3) and filter plate main body (4), consolidating in the slurry and/or the slurry State ingredient oppresses diaphragm (3), so that diaphragm (3) is mobile towards filter plate main body (4), to eliminate before being pumped into the slurry The space formed between diaphragm (3) and filter plate main body (4) due to fold (5).
CN201610574237.XA 2016-07-19 2016-07-19 Filter press filter board with split type squeeze diaphragm Active CN105944419B (en)

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CN201610574237.XA CN105944419B (en) 2016-07-19 2016-07-19 Filter press filter board with split type squeeze diaphragm
CN201811163990.5A CN109364543B (en) 2016-07-19 2016-07-19 Diaphragm of filter press diaphragm filter plate and filter press diaphragm filter plate using same

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CN201610574237.XA CN105944419B (en) 2016-07-19 2016-07-19 Filter press filter board with split type squeeze diaphragm

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DE202017104018U1 (en) * 2017-07-05 2018-07-09 Jvk Filtration Systems Gmbh Arrangement of a filter plate and an attachment
CN112206554A (en) * 2020-01-03 2021-01-12 第一环保(深圳)股份有限公司 Upper and lower double-feeding double-pressing filter plate
EP4135869A4 (en) * 2020-04-17 2023-12-27 Metso Outotec Finland Oy A sealing strip for sealing adjacent filter plate assemblies of a filter press, such as a tower press, a filter frame, a filter frame assembly and a filter apparatus
CN113828022B (en) * 2021-08-31 2022-12-06 江苏沙英喜实业有限公司 Full-automatic diaphragm filter press
CN117839282A (en) * 2024-03-09 2024-04-09 福建省创绿机械股份有限公司 One-way diaphragm filter plate type filter press

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CN2887406Y (en) * 2006-03-15 2007-04-11 秦素芳 Endurable composite type diaphragm filter plate
CN201049234Y (en) * 2007-05-21 2008-04-23 杭州兴源过滤机有限公司 Wave shape diaphragm
JP2014180617A (en) * 2013-03-19 2014-09-29 Mitsubishi Plastics Inc Compression membrane for filter press
CN205913823U (en) * 2016-07-19 2017-02-01 康明克斯(北京)机电设备有限公司 Framework -filter plate with split type diaphragm that squeezes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2495357Y (en) * 2001-07-02 2002-06-19 湖南中联环保工程有限公司 Pressure filter utilziing water pressure to proceed high pressure squeezing
CN2607186Y (en) * 2003-03-28 2004-03-24 杭州西湖分离机械有限公司 Dovetail shape inserted combined filtering plate
CN2887406Y (en) * 2006-03-15 2007-04-11 秦素芳 Endurable composite type diaphragm filter plate
CN201049234Y (en) * 2007-05-21 2008-04-23 杭州兴源过滤机有限公司 Wave shape diaphragm
JP2014180617A (en) * 2013-03-19 2014-09-29 Mitsubishi Plastics Inc Compression membrane for filter press
CN205913823U (en) * 2016-07-19 2017-02-01 康明克斯(北京)机电设备有限公司 Framework -filter plate with split type diaphragm that squeezes

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Denomination of invention: Filter plate of filter press with split press diaphragm

Effective date of registration: 20221103

Granted publication date: 20190104

Pledgee: Xiamen International Bank Co.,Ltd. Beijing Branch

Pledgor: COMEX (BEIJING) MECHANICAL & ELECTRONIC EQUIPMENT CO.,LTD.

Registration number: Y2022980020817