CN205913823U - Framework -filter plate with split type diaphragm that squeezes - Google Patents

Framework -filter plate with split type diaphragm that squeezes Download PDF

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Publication number
CN205913823U
CN205913823U CN201620767261.0U CN201620767261U CN205913823U CN 205913823 U CN205913823 U CN 205913823U CN 201620767261 U CN201620767261 U CN 201620767261U CN 205913823 U CN205913823 U CN 205913823U
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filter plate
barrier film
filter
plate main
diaphragm
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CN201620767261.0U
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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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Abstract

The utility model provides an unfamiliar filter plate that the pressure filter was used, include: the filter plate main part 4, have processed on it and separate film positioning recess 2, the diaphragm 3, diaphragm clamp plate 1 for it fixes in the filter plate main part its characterized in that to compress tightly diaphragm 3: be fixed with a plurality of diaphragms 3 in every filter plate main part 4. The prefabricated fold 5 that has is gone up to each diaphragm 3, when the straining chamber including unfamiliar filter plate is filled, has being pressed to filter plate main part 4 by filter material in 3 thick liquids of being filled in the diaphragm and/or the thick liquid of fold 5, and when aerifing of going on was afterwards squeezed, diaphragm 3 is blowd in diaphragm 3 and the compressed air of filter plate main part between 4 agitates, and the motion of filter plate main part 4 is left in the production, causes the extrusion to the filter cake. Fold 5 has one kind in the following form: arch of circular shape roughly, it is 3 concentric roughly with the circular diaphragm at place, a sectional form is the the ring structure of " V " font, and 2 to 3 sectional forms are the the ring structure who overlaps mutually of " V " font.

Description

Filter press filter board with split type squeeze diaphragm
Technical field
This utility model is related to the filter press filter board and pressure filter with split type squeeze diaphragm, and corresponding barrier film.
Background technology
It is a kind of conventional solid-liquid separation technique that filter pressing separates.In a kind of traditional pressure filter, multiple filter plates with can The mode juxtaposition of movement, between the fixing end of pressure filter and movable end, moves movable end by hydraulic cylinder, thus all of Filter plate is pressed together, thus forming closing filter chamber between filter plate.Then with charging pump, slurry is squeezed into filter chamber, solid to carry out Liquid separates.Solid-liquid separation is generally divided into filter pressing, removal of filtrate by air, discharge step.In filter pressing step, define closing filter chamber it Afterwards, slurry from feeding mouth enhancing perfusion to filter chamber in, by the effect of the filter cloth being arranged in filter chamber, the solid in slurry becomes Part is left in filter chamber, and liquid component then passes through filter cloth and flows out from the outlet of each filter chamber.Slurry perfusion is typically high pressure Perfusion.With the carrying out of perfusion, the ratio of the solid content in filter chamber is increasing, and has finally been filled with whole filter chamber and shape Become filter cake.After solid content is full of filter chamber and forms filter cake, stop material feeding.Subsequently carry out removal of filtrate by air.In removal of filtrate by air Step, is blown into filter cake compressed air and carries out air-water displacement, thus taking away the moisture in filter cake.In discharge step, by filter pressing The hydraulic cylinder of machine makes all filter chamber substeps open, and filter cake falls by gravity, thus completing discharging.
And the material such as dehydration is difficult to for some metalliferous mineral, mine tailing and clay, only lean on filter-press dehydration and blow de- Water is not met by the requirement of more low-water-content.In Chinese patent zl 99125926.2, describe a kind of solution of compressible filter chamber Certainly scheme, wherein, by using the elastic sealing element being arranged on filter plate periphery so that in the state of filter chamber closing, by pressure Contracting elastic sealing element so that the width of filter chamber can be adjusted, it is possible to the filter being in filter chamber in air dehydration step Cake is extruded.
But the solution of this compressible filter chamber has serious limitation.First, the power of compression filter chamber needs by cylinder pressure There is provided, and the design pressure of cylinder pressure is limited, and first have to for closing filter chamber, the residue after completing filter chamber and closing Pressure is very limited.Second, because filter chamber compression is the compression being necessarily accompanied with elastic sealing element, and the elasticity of elastic sealing element is returned Multiple power increases with the increasing of suppressed range, and so, the originally limited residual compression of cylinder pressure is mainly used in overcoming this elasticity to return Multiple power, without acting on filter cake, this is clearly the defect in a serious design principle.
In order to overcome this defect, a kind of new equipment using diaphragm pressing dehydration and new technology are arisen at the historic moment.Current one Plant in the chamber-type press filter design with squeeze diaphragm of main flow, be mounted alternately with the filter plate of two kinds of different structures.One kind is band There is the filter plate of pan feeding pipeline, filter plate main body makes of steel plate, the modified poly ethylene installed with vertical groove in steel plate both sides is moulded Material liner plate, the discharging tube that groove is used for smoothly importing filtrate water filter plate bottom flows out;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 both sides.In the both sides of above two filter plate, all outstanding Hang and special filter cloth is installed;In diaphragm of rubber towards the side of filter chamber, with densely arranged small boss, it is easy to the filter filtering out Liquid water flows into the discharging tube of filter plate bottom.In the course of the work, the above two filter plate of alternately arranged setting is pressed on pressure filter Together, form filter chamber between adjacent filter plate, after filter chamber is filled with by filter material, to barrier film and the filter plate of membrane filter plate It is blown into pressure-air between main body, agitates diaphragm of rubber to be deformed, filter cake (i.e. in filter chamber by filter material) is squeezed Pressure, squeezes out the excessive moisture in filter cake, makes filter cake meet the requirement of more low-water-content.
Traditionally, barrier film is square monolithic construction, and its size is substantially suitable with filter chamber.
The square diaphragm filter-plate structure of traditional monoblock type is shown in Fig. 1 a-1e.In Fig. 1 a-1e, label 1 for steel plate make square Barrier film pressing plate, multiple disk-shaped diaphragm pressing plates that label 13 makes for steel plate, it is provided commonly for barrier film is fixed and clamped in filter plate master On body;Label 2 is the barrier film detent processing in filter plate main body, and label 41 is monoblock type square rubber barrier film;Label 51 is steel filter plate main body, and label 6 is to the air inlet pipe joint being blown into pressure-air between barrier film and filter plate main body;Label 7 be to It is blown into the air inlet of pressure-air, label 8 is filter plate (the i.e. aseptate filter with pan feeding pipeline between barrier film and filter plate main body Plate) pan feeding hole site.
As a concrete instance, in a specific embodiment, the length of side of the filter plate shown in Fig. 1 a is about 1820 millimeters. Show the details of the membrane surface according to a specific embodiment in Fig. 1 e, the surface of barrier film is provided with small boss, in figure In the specific example of 1e, these small boss are regularly arranged with 20 millimeters of pitch.Fig. 1 d shows little in a specific embodiment The size of boss.Above-mentioned size is not determinate.
Utility model content
According to one side of the present utility model, there is provided a kind of membrane filter plate of pressure filter, comprising: filter plate main body, The barrier film detent processing is carried on filter plate main body;Barrier film;Barrier film pressing plate, for being pressed abd fixed on filter plate main body by barrier film On,
It is characterized in that:
It is fixed with multiple barrier films in each filter plate main body.
According to other side of the present utility model, there is provided the barrier film of above-mentioned membrane filter plate it is characterised in that described every Fold is prefabricated with film.
According to another aspect of the present utility model, there is provided include the pressure filter of above-mentioned membrane filter plate.
Brief description
Fig. 1 a-1e shows the square diaphragm filter-plate structure of traditional monoblock type.
Fig. 2 a-2e show according to the assembling of the split type membrane filter plate of circle of an embodiment of the present utility model after knot Structure.
Fig. 3 a and 3b shows the master of the split type membrane filter plate of circle according to an example embodiment of the present utility model Body steel plate weldment structure.
Fig. 4 a and 4b show the split type membrane filter plate of circle according to an example embodiment of the present utility model every Membrane structure.
Specific embodiment
The present inventor is through long-term practical observation, research and summary it was found that there is a problem of as follows in prior art:
1st, because the barrier film 41 of conventional membrane filter plate is overall square structure, when the compressed air that barrier film 41 is blown into is agitated During deformation, the stress distribution on barrier film is uneven, there is serious stress concentration phenomenon;Further and specifically, due to every Film 41 overall dimensions are larger, and except the position in the periphery, corner and plup inlet 8 of barrier film 41, barrier film 41 is by square steel barrier film Outside pressing plate 1 is fixed and clamped, also some positions in the middle part of barrier film 41 be provided with the less disc of multiple diameters every Mould plate 13, to carry out more reliable fixation to barrier film.When the compressed air that barrier film 41 is blown into agitates deformation, these barrier films Pressing plate 1, plup inlet 8, the barrier film 41 of disk-shaped diaphragm pressing plate 13 periphery deflection larger, stress concentration phenomenon is serious, easily leads Cause barrier film 41 fatigue damage at these positions;Especially when filter chamber is discontented with material filling, blast and be easier during pressure-air Cause the abnormal tear of barrier film 41;
2nd, because barrier film 41 is overall, even one whole barrier film only has little damage at, whole barrier film just can not continue The continuous barrier film 41 material cost height employing, changing whole, time-consuming to change repairing, and labour cost is high, and reduction equipment starts rate.
The present inventor on the basis of above-mentioned practical observation, research and summary it is proposed that one kind have split type circular every The solution of the membrane filter plate of film, its compare conventional membrane filter plate have barrier film long service life, maintenance replacement cost low Advantage.Meanwhile, the present inventor through actual test find, when with polylith circular diaphragm instead of original single overall barrier film it Afterwards although barrier film no longer constitutes overall covering to membrane filter plate, but design still can be reached to the extrusion dehydration of filter cake Require.Split type circular diaphragm scheme of the present utility model also has other advantages and/or beneficial effect, as mentioned below.
Fig. 2 a-2e is shown according to the structure after the circle split type membrane filter plate assembling of an embodiment of the present utility model. In Fig. 2 a-2e, the circular diaphragm pressing plate that label 1 makes for steel plate, for being fixed and clamped barrier film 3 in filter plate main body; Label 2 is the barrier film detent processing in filter plate main body, and label 3 is circular split type diaphragm of rubber;Label 4 is filter plate Main body, label 5 represents the fold precasting on barrier film.In one embodiment, filter plate main body 4 is steel.
The main body steel plate weldment knot of the split type membrane filter plate of circle according to an example embodiment of the present utility model Structure is shown in Fig. 3 a and 3b.In Fig. 3 a and 3b, label 301 is to connect to the air inlet pipe being blown into pressure-air between barrier film and filter plate main body Head;Label 302 is to the air inlet being blown into pressure-air between barrier film and filter plate main body, and label 303 is each monomer barrier film steel plate Between vent cap.The embodiment of Fig. 3 a and 3b is exemplary;Under basic conception of the present utility model, others are entered Gas-tpe fitting, air inlet, vent cap setting are also obvious.
The membrane configuration of the split type membrane filter plate of circle according to an example embodiment of the present utility model see Fig. 4 a and 4b.In figs 4 a and 4b, label 401 is the fold precasting.The embodiment of Fig. 4 a and 4b is exemplary;New in this practicality In one embodiment of type, it is the circular ring structure of " v " font or 2 to 3 section shapes that fold also can behave as a section configuration Shape is the structure that is nested of annulus of " v " font.New according to this practicality as shown in Fig. 2 a-2d, Fig. 3 a and 3b and Fig. 4 a and 4b In the embodiment of type, the barrier film of every piece of membrane filter plate includes four pieces of circular diaphragm 3;Fold 5 and 401 has been made in advance on barrier film 3. As shown in Figure 2 c, in a specific embodiment, when filter chamber is not filled, fold 5 correspond to barrier film 3 middle body with A gap between filter plate main body 4.In exemplary embodiment shown in Fig. 2 c, this gap there are about 20 millimeters;This numerical value is Indefiniteness.According to a preferred embodiment, as shown in Fig. 2 b, 2c, 4b, fold 5 and 401 constitutes of circular Projection, it is generally concentric with circular diaphragm 3.
Obviously, on each filter plate, the number of the barrier film of configuration is not limited to four.Under general plotting of the present utility model, The barrier film number of other numbers is also be expected.
Obviously, the shape of each barrier film is also not necessarily limited to circle.For example, barrier film can also be rectangle, etc..These barrier films Shape belongs to scope of the present utility model.In the case of using rectangle barrier film, fold 5 and 401 can be section is in " v " font Circular ring structure, an or projection of a circular or other suitable shapes (such as generally fillet square Shape) section be in " v " character form structure or projection.
Fig. 2 d gives the example embodiment according to the small boss on membrane surface of the present utility model, there is shown little The associated exemplary size (unit of this in figure is millimeter) of boss.Fig. 2 e gives these small boss example on the diaphragm surface Property layout.Above-mentioned size and layout are all non-determinate.
By precasting barrier film fold 5 and 401, when filter chamber is filled, the bossing quilt of the barrier film 3 that fold is formed In the serosity of filling and/or serosity, filter plate main body 4 is pressed to by filter material, and in the inflated squeezing subsequently carrying out, barrier film 3 The pressure-air being blown between barrier film 3 and membrane filter plate main body 4 is agitated, and produces the motion leaving membrane filter plate main body 4, Filter cake is caused extrude, squeeze out the excessive moisture in filter cake and/or elimination moisture is extruded the space reserve in rear filter cake, make Filter cake meets the requirement of more low-water-content.Obviously, in the case of the embodiment as shown in Fig. 2 b, 2c, 4b, barrier film 3 is above-mentioned Above-mentioned moving under the agitating of pressure-air is partially to reply deformation;For example, in the embodiment shown in Fig. 2 c, if every The above-mentioned deformation that film 3 starts from the surface of filter plate main body 4 under the agitating of above-mentioned pressure-air is along the direction perpendicular to filter plate When not less than 20 millimeters, then the reply that all belongs to of above-mentioned deformation deforms;And work as this deformation along the side perpendicular to filter plate It is to reply deformation to 20 millimeters of parts when more than 20 millimeters, then starting in this deformation.Thus, prefabricated fold 5 and 401 (raised) just serves the effect of " answering in advance " so that the general extension amplitude of deformation that barrier film 3 is experienced in whole work process obtains Reduce it may be assumed that the projection (fold) of barrier film is offset or avoided at least one of diaphragm deflection to corresponding, reduce barrier film Stretcher strain amount, improve the anti-fatigue ability of barrier film.And be the circular ring structure that section is in " v " font in fold 5 and 401 In the case of, above-mentioned motion under the agitating of above-mentioned pressure-air for the barrier film 3 does not then result in undue stress on barrier film 3, Avoid barrier film and suffer from fatigue damage.
Compared with the diaphragm solutions of traditional pressure filter, the beneficial effects of the utility model include:
1) because barrier film of the present utility model and barrier film pressing plate are circle, effectively prevent that square pressing plate easily causes every Stress concentration phenomenon during film deformation, can greatly prolong barrier film service life;
2) because barrier film is split type, once a certain piece of diaphragm failures are it is only necessary to change or repair the barrier film of this block damage , other barrier films do not need to dismantle, save replacing repairing time and expense, facilitate replacing or the repairing of barrier film yet;
3) by precasting barrier film fold (raised) 5, when filter chamber is filled, raised barrier film 3 is pressed towards filter plate main body 4, in the inflated squeezing subsequently carrying out, the pressure-air that barrier film 3 is blown between barrier film 3 and filter plate main body 4 is agitated and is produced Change shape, this be deformed into be partially barrier film reply deformation, thus offset at least in part and/or avoid barrier film elongation become Shape, that is, reduce the stretcher strain amount of barrier film 3, improve the anti-fatigue ability of barrier film 3;Or, it is " v " word in fold 5 and 401 In the case of the circular ring structure of shape section, motion under the agitating of pressure-air for the barrier film 3 do not result in occur on barrier film 3 undue Stress, it is to avoid barrier film suffers from fatigue damage;
4) due to according to split type barrier film of the present utility model, with respect to traditional overall barrier film, the area of single barrier film Reduce, reduce the die cost of barrier film making, and improve the yield rate of the barrier film manufacturing;
5) due to prolongation and the shortening of repair and replacement barrier film used time of membrane life, setting of pressure filter product can be significantly improved For using serviceability rate, advantageously ensure that pressure filter operationally can reach the production capacity of its design;Secondly, diaphragm replacing or repairing The saving of expense, reduces equipment operating cost.All of these factors taken together, all can greatly enhance the market competition of pressure filter product Power.

Claims (8)

1. the membrane filter plate of pressure filter, comprising:
Filter plate main body (4), filter plate main body (4) is upper to carry the barrier film detent (2) processing,
Barrier film (3),
Barrier film pressing plate (1), for barrier film (3) is pressed abd fixed on filter plate main body (4),
It is characterized in that:
It is fixed with multiple barrier films (3) in each filter plate main body (4).
2. membrane filter plate according to claim 1 is it is characterised in that the shape of each barrier film (3) is choosing from following shape The one kind going out:
Circle,
Rectangle.
3. membrane filter plate according to claim 1 is it is characterised in that be prefabricated with fold (5) on each barrier film (3),
Wherein
When include above-mentioned membrane filter plate filter chamber be filled when, the serosity that the barrier film (3) with described fold (5) is filled and/ Or pressed to filter plate main body (4) by filter material in serosity, and in the inflated squeezing subsequently carrying out, barrier film (3) be blown into every Compressed air between film (3) and filter plate main body (4) is agitated, and produces the motion leaving filter plate main body (4), and filter cake is caused Extruding.
4. the membrane filter plate according to one of claim 1-3 is it is characterised in that further include:
To the air inlet (302) being blown into compressed air between barrier film (3) and filter plate main body (4);
Vent cap (303) between each barrier film.
5. the membrane filter plate according to one of claim 1-3 it is characterised in that:
Four circular diaphragm (3) are fixed with each filter plate main body (4), these circular diaphragm (3) are divided into upper and lower two rows, often arrange Including two circular diaphragm (3).
6. membrane filter plate according to claim 3 it is characterised in that:
The plurality of barrier film (3) is circular diaphragm, and correspondingly, described barrier film detent (2) is circular,
Described fold (5) has one of following form:
One projection of circular, it is generally concentric with the circular diaphragm (3) being located;
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. it is used for the barrier film (3) of membrane filter plate according to one of claim 1-6 it is characterised in that described barrier film (3) It is prefabricated with fold (5).
8. a kind of pressure filter is it is characterised in that include the membrane filter plate according to one of claim 16.
CN201620767261.0U 2016-07-19 2016-07-19 Framework -filter plate with split type diaphragm that squeezes Active CN205913823U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105944419A (en) * 2016-07-19 2016-09-21 康明克斯(北京)机电设备有限公司 Filter press filter plate provided with split type squeezing membrane
CN113521820A (en) * 2020-04-17 2021-10-22 美卓奥图泰芬兰有限公司 Filtration membrane for horizontal plate and frame filters such as tower presses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105944419A (en) * 2016-07-19 2016-09-21 康明克斯(北京)机电设备有限公司 Filter press filter plate provided with split type squeezing membrane
CN105944419B (en) * 2016-07-19 2019-01-04 康明克斯(北京)机电设备有限公司 Filter press filter board with split type squeeze diaphragm
CN113521820A (en) * 2020-04-17 2021-10-22 美卓奥图泰芬兰有限公司 Filtration membrane for horizontal plate and frame filters such as tower presses
CN113521820B (en) * 2020-04-17 2023-06-13 美卓奥图泰芬兰有限公司 Filtration membrane for a horizontal plate and frame filter such as a tower press

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