CN102309876B - Improvement for dynamic filtration squeezing dewatering machine - Google Patents

Improvement for dynamic filtration squeezing dewatering machine Download PDF

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Publication number
CN102309876B
CN102309876B CN 201110250075 CN201110250075A CN102309876B CN 102309876 B CN102309876 B CN 102309876B CN 201110250075 CN201110250075 CN 201110250075 CN 201110250075 A CN201110250075 A CN 201110250075A CN 102309876 B CN102309876 B CN 102309876B
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CN
China
Prior art keywords
filter
filter plate
frame
elastomer
sealing ring
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CN 201110250075
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Chinese (zh)
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CN102309876A (en
Inventor
贺仲宪
范小华
王春利
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浙江金鸟压滤机有限公司
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Priority to CN 201110250075 priority Critical patent/CN102309876B/en
Publication of CN102309876A publication Critical patent/CN102309876A/en
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Publication of CN102309876B publication Critical patent/CN102309876B/en

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Abstract

The invention discloses an improvement for dynamic filtration squeezing dewatering machine, which comprises a filtration unit, each filtration unit comprises two parallel filter plates, an elastic press box composed of elasticity and a filter frame is provided between the two filter plates and is adjacent to the out edges part of filter plates, the elasticity and the filter plates are fixed, a sealing ring is provided between an inner side of the filter frame and the filter plates, the filter frame, the sealing ring and two filter plates forms a filtration chamber. According to the invention, the elasticity is clamped between the prominence and the filter plates, the sealing ring is provided between the inner side of the filter frame and the filter plates, the filter frame, the sealing ring and two filter plates forms a filtration chamber, so that a dynamic filtration squeezing dewatering machine structure can be simplified, and the production cost can be relatively reduced, the service life is longer and the efficiency is higher.

Description

The dynamic filtration squeezing dewatering machine improves structure
Technical field
The present invention relates to filter press.
Background technology
Existing sludge dewatering, American-European and Japan country mostly adopts vacuum belt press filtering machine, horizontal screw centrifuge and diaphragm pressing filter press mostly with China, and will carry out flocculation agent to mud according to sludge nature and handle and add filter aid and mud is carried out reunion and the modification of fine particle.The reduction of the filter residue water capacity after the filtration mainly relies on flocculation agent in the effect of filtering the period, and the ratio of interpolation filter aid relies on.Through the vacuum belt press filtering machine, the mud that horizontal screw centrifuge is handled, water capacity is general many about 80%, the mud water capacity of handling through the diaphragm pressing filter press is many about 60 ~ 75%, the addition of filter aid increases, the rate of filtration is accelerated, and the water capacity of filter residue descends, and the pressure of diaphragm pressing is mostly at 1.5 ~ 1.6Mpa/CM 2Use actual conditions from technology and the equipment of existing sludge dewatering, the vacuum belt press filtering machine, horizontal screw centrifuge automaticity height, but filter residue water capacity height can not reach the requirement of national environmental protection department regulation.The diaphragm pressing filter press is because the structure of filter plate and the restriction of material, the obstacle that existence can't be gone beyond aspect heat resisting and pressure resisting etc., analyze from filtration theory, the diaphragm pressing filter press is the cake layer work principle of filter, along with the prolongation of filtration time, filter cake thickens, and the filter cake resistivity increases, filtering velocity descends, and filtration time is long.And membrane filter plate is made complicated, complex operation, and service life is not long, changes the price height, also needs water, the gas energy, and pipeline increases supporting, increases operation and expends.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of dynamic filtration squeezing dewatering machine, and is simple in structure, long service life, efficient height.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the dynamic filtration squeezing dewatering machine improves structure, comprise at least one filter element, each filter element comprises two parallel filter plates, be provided with the elasticity squeeze frame of being formed by elastomer and filter frame at adjacency filter plate outward flange position between two filter plates, it is characterized in that: described filter frame evenly is provided with at least two protuberances on the outer ring, elastomer is corresponding with the protuberance position, described elastomer cramping is between described protuberance and described filter plate, and elastomer and described filter plate are fixed, be provided with sealing ring, filter frame between described filter frame inboard and described filter plate, sealing ring and two filters surround filter chamber.
As preferably, described filter frame is the thin structure of protuberance for framework is thick, and a circle thin wing is established at described filter plate edge, and filter plate edge thin wing thickness is less than interior thickness, and filter frame is located between the filter plate thin wing.
As preferably, described sealing ring is fixed on the filter plate, and wherein the sealing ring outside is provided with the sealing lip that extends to filter frame, and described sealing lip is fastened on the corner, described filter frame bottom.Sealing effectiveness is better.
As preferably, described sealing ring inboard is provided with projection, and the binding face of described filter plate and described sealing ring is provided with draw-in groove, described projection be connected in realize in the described draw-in groove fixing.It is more firm to install.
As preferably, described filter plate is square, and filter frame is circular, and described protuberance is provided with four, and described protuberance stretches to four angles of described filter plate.Both had better elastic, stability of structure when guaranteeing squeezing again.
As preferably, described elastomer is cylinder, and described elastomer center is provided with a centre bore, and described filter plate is provided with reference column, and described elastomer is plugged on the described reference column by centre bore.Make the elastomer fixed-site.
As preferably, described filter plate is provided with inflatable mouth, the liquid outlet that leads to filter chamber, and described inflatable mouth is located at middle side part on the described filter plate, and described liquid outlet is positioned at middle side part under the described filter plate.
As preferably, described filter chamber is provided with two charging apertures, wherein first charging aperture is located at the protuberance downside of filter frame left side top, and second charging aperture is located at the protuberance upside of below, filter frame right side, and described charging aperture and described inflatable mouth are vertical with line between liquid outlet.The shearing force that slurry high flow velocities is into produced.
The present invention with the elastomer cramping between described protuberance and described filter plate, and between filter frame inboard and described filter plate, be provided with sealing ring, filter frame, sealing ring and two filters surround filter chamber, simplified the structure of dynamic filtration squeezing dewatering machine like this, the corresponding cost of manufacture that reduced, and longer service life, efficient is higher.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A cutaway view among Fig. 1.
The specific embodiment
The explanation dynamic filtration squeezing dewatering machine of the present invention that sees figures.1.and.2 improves the embodiment 1 of structure, comprise at least one filter element, each filter element comprises two parallel filter plates 1, be provided with the elasticity squeeze frame of being formed by elastomer 2 and filter frame 3 at adjacency filter plate outward flange position between two filter plates, described filter frame evenly is provided with at least two protuberances 31 on the outer ring, elastomer is corresponding with the protuberance position, described elastomer cramping is between described protuberance and described filter plate, and elastomer and described filter plate are fixed, be provided with sealing ring 4, filter frame between described filter frame inboard and described filter plate, sealing ring and two filters surround filter chamber.Described filter frame is the thin structure of protuberance for framework is thick, and a circle thin wing 11 is established at described filter plate edge, and filter plate edge thin wing thickness is less than interior thickness, and filter frame is located between the filter plate thin wing.Described sealing ring is fixed on the filter plate, and wherein the sealing ring outside is provided with the sealing lip 41 that extends to filter frame, and described sealing lip is fastened on the corner, described filter frame bottom.Described sealing ring 4 inboards are provided with projection 42, and the binding face of described filter plate and described sealing ring is provided with draw-in groove, and described projection is connected in and realizes in the described draw-in groove fixing.Described filter plate is square, and filter frame is circular, and described protuberance is provided with four, and described protuberance stretches to four angles of described filter plate.Described elastomer is cylinder, and described elastomer center is provided with a centre bore, and described filter plate is provided with reference column, and described elastomer is plugged on the described reference column by centre bore.Described filter plate is provided with inflatable mouth 7, the liquid outlet 8 that leads to filter chamber, and described inflatable mouth is located at middle side part on the described filter plate, and described liquid outlet is positioned at middle side part under the described filter plate.Described filter chamber is provided with two charging apertures 6, and wherein first charging aperture is located at the protuberance downside of filter frame left side top, and second charging aperture is located at the protuberance upside of below, filter frame right side, and described charging aperture and described inflatable mouth are vertical with line between liquid outlet.
Thickening of filter cake is the principal element that hinders filtering rate, injection by liquid prevents that the initial stage of filter residue on filter medium from depositing in a large number, utilize the principle of cross flow dynamic filtration to limit thickening of filter cake, changed traditional cake filtration mechanism, filter pulp is flowed perpendicular to the surface of filter medium, solid is held back by medium, forms filter cake gradually and thickens the defective that the rate of filtration obviously slows down.The filter plant that the dynamic filtration theory is applied in plate frame structure becomes a reality.
1, two filter plates form two pistons that can advance, a middle filter frame forms a cylinder body, the middle boxes of utilizing elastomer to do between two blocks of plates is located, obtain a fixedly filter chamber thickness, and finish the conversion that the dynamic filtration by the diagonal angle of frame or inferior horn tangential admission filters to last cake layer, after finishing filter chamber under the feed pressure effect and being full of filter cake, it is imposed super high pressure hydraulic power, making two filter plates make the cylinder piston secondary advances, be directly passed to filter cake enforcement to the squeezing of filter residue by filter plate, make the bridge formation intensity of filter residue under greater than its critical action of hydraulic force, produce the scholar change, compression, the moisture content of squeezing out.
Locate with elastomer at edge by two filter plates, form a filter chamber, and under the pressure progradation, make the filter chamber thickness variable, be fixed the filter chamber of thickness during filtration, and finish the conversion that the dynamic filtration by the diagonal angle of frame or inferior horn tangential admission filters to last cake layer, and under the effect of hydraulic pressure high pressure, elastomer distortion compression, pressure passes to filter cake by filter plate, filter cake is imposed the filter residue squeezing of hyperpressure, and the bridge formation intensity that makes filter residue produces the scholar moisture content that becomes, compresses, squeezes out under greater than its critical action of hydraulic force.
Advantage of the present invention (beneficial effect):
1, utilization advances to starch the shearing force that high flow velocities produces, thereby suppressing cake layer thickens, make the thinner filter cake of generation obtain mobile, the movement of the fine particle of blocking filtering medium easily, reduced in the filtration period flocculation agent has been agglomerated into oarse-grained dependence as fine particle, reduce the secondary pollution of chemicals to mud, and accelerated the rate of filtration.
2, adopt the dynamic filtration technology, the filtration period only forms thinner filter cake, and the hydraulics resistance is lower, thereby flow is bigger, has accelerated filtering rate greatly, and has improved the strainability of filter cake, reduces the input of equipment, saves investment.
3, can and blow the precision of purification material and getting profit to filter cake washing.
4, after filtration finishes, the hydraulic jack that utilizes machine itself to put, be directly passed to mud cake by filter plate, impose the superelevation critical pressure, make that filter cake produces that scholar becomes, distortion, dehydration, changed protocnemes squeezing filter press fully and utilize plastics or the inflation of rubber-like diaphragm reverse side or produce hydraulic coupling and outwards bloat and make the squeezing pressure restriction state.Novel device does not almost have the generation of consumable accessory.Sludge filter cake thickness after the squeezing is even, volatilizees favourable greatly naturally to road, back filter cake moisture content.The critical pressure that filter cake is exerted pressure can reach the several times of traditional diaphragm pressing filter press.
5, simple to operate, energy consumption is low, whole filtration and overcritical hydraulic coupling have only the motor of two pumps, the one, advance the stock pump power consumption, the 2nd, the power consumption of hydraulic pump need not other class power.Complete machine adopts PLC program control, carries out Automatic Control.
Dewatered sludge after this machine filters squeezing, the dewatered sludge that conforms to fully or surpass general office of existing national environmental protection portion notice defined moisture content<50% that dispatches from the factory, and (CJ/T249) regulation of standard: the mud before the landfill need carry out stabilization processes: lateral shear intensity should be greater than 25KN/M 2, moisture content<60%, the smelly degree after the sludge dewatering is less than 3 grades.

Claims (6)

1. the dynamic filtration squeezing dewatering machine improves structure, comprise at least one filter element, each filter element comprises two parallel filter plates (1), be provided with the elasticity squeeze frame of being formed by elastomer (2) and filter frame (3) at adjacency filter plate outward flange position between two filter plates, it is characterized in that: evenly be provided with at least two protuberances (31) on the described filter frame outer ring, elastomer is corresponding with the protuberance position, described elastomer cramping is between described protuberance and described filter plate, and elastomer and described filter plate are fixed, be provided with sealing ring (4) between described filter frame inboard and described filter plate, filter frame, sealing ring and two filter plates surround filter chamber, described filter plate is provided with the inflatable mouth (7) that leads to filter chamber, liquid outlet (8), described inflatable mouth is located at middle side part on the described filter plate, described liquid outlet is positioned at middle side part under the described filter plate, described filter chamber is provided with two charging apertures (6), wherein first charging aperture is located at the protuberance downside of top, filter frame left side, second charging aperture is located at the protuberance upside of below, filter frame right side, and described charging aperture and described inflatable mouth are vertical with line between liquid outlet.
2. dynamic filtration squeezing dewatering machine according to claim 1 improves structure, it is characterized in that: described filter frame is the thin structure of protuberance for framework is thick, a circle thin wing (11) is established at described filter plate edge, and filter plate edge thin wing thickness is less than interior thickness, and filter frame is located between the filter plate thin wing.
3. dynamic filtration squeezing dewatering machine according to claim 2 improves structure, it is characterized in that: described sealing ring is fixed on the filter plate, wherein the sealing ring outside is provided with the sealing lip (41) that extends to filter frame, and described sealing lip is fastened on the corner, described filter frame bottom.
4. dynamic filtration squeezing dewatering machine according to claim 3 improves structure, it is characterized in that: described sealing ring (4) inboard is provided with projection (42), the binding face of described filter plate and described sealing ring is provided with draw-in groove, and described projection is connected in and realizes in the described draw-in groove fixing.
5. improve structure according to each described dynamic filtration squeezing dewatering machine of claim 1 to 4, it is characterized in that: described filter plate (1) is for square, filter frame (3) is circular, and described protuberance (31) is provided with four, and described protuberance stretches to four angles of described filter plate.
6. dynamic filtration squeezing dewatering machine according to claim 5 improves structure, it is characterized in that: described elastomer (2) is cylinder, described elastomer center is provided with a centre bore, and described filter plate is provided with reference column, and described elastomer is plugged on the described reference column by centre bore.
CN 201110250075 2011-08-29 2011-08-29 Improvement for dynamic filtration squeezing dewatering machine CN102309876B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI126335B (en) 2013-02-19 2016-10-14 Outotec (Finland) Oy Procedure for air drying a filter cake and filter disc
CN104275007A (en) * 2014-09-04 2015-01-14 浙江金鸟压滤机有限公司 Feeding structure of dynamic filter pressure filter
CN104275006B (en) * 2014-09-04 2016-02-10 浙江金鸟压滤机有限公司 A kind of dynamic filtration filter press
CN104324537B (en) * 2014-09-15 2016-02-10 浙江金鸟压滤机有限公司 A kind of filter press filter-pressing process
CN104324536B (en) * 2014-09-15 2016-02-10 浙江金鸟压滤机有限公司 The dynamic filter-pressing process of a kind of filter press
CN104740908A (en) * 2015-04-12 2015-07-01 韩洪波 Plate-frame filter press with elastic filtering frame

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2507538Y (en) * 2001-08-08 2002-08-28 深圳市金达莱环保有限公司 Plate press filter with adjustable filter chamber space
CN102068840A (en) * 2010-12-08 2011-05-25 浙江金鸟压滤机有限公司 Filter plate structure of non-membrane-type pressure filter
CN202170288U (en) * 2011-08-29 2012-03-21 浙江金鸟压滤机有限公司 Improved dynamic filtering and squeezing dehydrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2507538Y (en) * 2001-08-08 2002-08-28 深圳市金达莱环保有限公司 Plate press filter with adjustable filter chamber space
CN102068840A (en) * 2010-12-08 2011-05-25 浙江金鸟压滤机有限公司 Filter plate structure of non-membrane-type pressure filter
CN202170288U (en) * 2011-08-29 2012-03-21 浙江金鸟压滤机有限公司 Improved dynamic filtering and squeezing dehydrator

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Effective date of registration: 20181018

Address after: 510640 2414-2416 of the main building 371, five mountain road, Tianhe District, Guangzhou, Guangdong.

Patentee after: Guangdong Gaohang Intellectual Property Operation Co., Ltd.

Address before: 313113 No. 268, Green Avenue, industrial zone, Si an town, Changxing County, Huzhou, Zhejiang.

Patentee before: Zhejiang Goldenbird Filter Press Co., Ltd.

TR01 Transfer of patent right
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Effective date of registration: 20181025

Address after: 233000 6 Chuang Yuan Road, Guzhen Economic Development Zone, Bengbu, Anhui

Patentee after: Anhui smooth biological Co., Ltd.

Address before: 510640 2414-2416 of the main building 371, five mountain road, Tianhe District, Guangzhou, Guangdong.

Patentee before: Guangdong Gaohang Intellectual Property Operation Co., Ltd.