CN202170288U - Improved dynamic filtering and squeezing dehydrator - Google Patents
Improved dynamic filtering and squeezing dehydrator Download PDFInfo
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- CN202170288U CN202170288U CN2011203178239U CN201120317823U CN202170288U CN 202170288 U CN202170288 U CN 202170288U CN 2011203178239 U CN2011203178239 U CN 2011203178239U CN 201120317823 U CN201120317823 U CN 201120317823U CN 202170288 U CN202170288 U CN 202170288U
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Abstract
The utility model discloses an improved dynamic filtering and squeezing dehydrator which comprises at least one filtering unit. Each filtering unit comprises two parallel filtering plates; an elastic squeezing frame consisting of an elastic body and a filter frame is arranged at the outer edge of the adjacent filtering plates between the two filtering plates; at least two protrusion parts are uniformly arranged on the outer ring of the filter frame; the elastic body corresponds to the protrusion parts; the elastic body is clamped and pressed between the protrusion parts and the filtering plates and is fixed with the filtering plates; a sealing ring is arranged at the inner side of the filter frame and the filtering plates; and a filter chamber is defined by the filter frame, the sealing ring and the two filtering plates. The elastic body is clamped and pressed between the protrusion parts and the filtering plates, the sealing ring is arranged between the inner side of the filter frame and the filtering plates, and the filter chamber is defined by the filter frame, the sealing ring and the two filtering plates, so that the structure of the dynamic filtering and squeezing dehydrator is simplified, the manufacturing cost is relatively reduced, the service life is longer, and the efficiency is higher.
Description
Technical field
The utility model relates to pressure filter.
Background technology
Existing sludge dewatering; American-European and Japan country mostly adopts vacuum belt press filtering machine, horizontal screw centrifuge and diaphragm pressing pressure filter mostly with China, and will carry out flocculation agent to mud according to sludge nature and handle and add flocculating aids and mud is carried out the reunion and the modification of fine particle.The reduction of the filter residue regain after the filtration mainly relies on flocculation agent in the effect of filtering the period, and the ratio of interpolation flocculating aids relies on.Through the vacuum belt press filtering machine; The mud that horizontal screw centrifuge is handled, regain is general many about 80%, and the mud regain of handling through the diaphragm pressing pressure filter is many about 60～75%; The addition of flocculating aids increases; Filtration velocity is accelerated, and the regain of filter residue descends, and the pressure of diaphragm pressing is mostly at 1.5～1.6Mpa/CM
2Use practical situation from the technology and the equipment of existing sludge dewatering, the vacuum belt press filtering machine, the horizontal screw centrifuge level of automation is high, but the filter residue regain is high, can not reach the requirement of national environmental protection department regulation.The diaphragm pressing pressure filter is because the structure of filter plate and the restriction of material, and the obstacle that existence can't be gone beyond aspect heat resisting and pressure resisting etc. is analyzed from filtration theory; The diaphragm pressing pressure filter 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 work-ing life is not long, and it is high to change price, also needs water, the gas energy, and pipeline increases supporting, increases operation and expends.
The utility model content
The utility model technical problem to be solved just provides a kind of dynamic filtration squeezing dewatering machine, and is simple in structure, long service life, and efficient is high.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the dynamic filtration squeezing dewatering machine improves, and comprises at least one filtering unit; Each filtering unit comprises two parallel filter plates; Be provided with the elasticity squeeze frame of being made up of elastomerics and filter frame in abutting connection with filter plate outward flange position between two filter plates, it is characterized in that: said filter frame evenly is provided with at least two tucks on the outer ring, and elastomerics is corresponding with the tuck position; Said elastomerics cramping is between said tuck and said filter plate; And elastomerics and said filter plate are fixed, and are provided with sealing-ring between said filter frame inboard and said filter plate, and filter frame, sealing-ring and two screen plates surround filter chamber.
As preferably, said filter frame is the thin structure of tuck for framework is thick, and a circle thin wing is established at said 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, said 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 said sealing lip is fastened on the corner, said filter frame bottom.Sealing effectiveness is better.
As preferably, said sealing-ring inboard is provided with convexity, and the binding face of said filter plate and said sealing-ring is provided with draw-in groove, said convexity be connected in realize in the said draw-in groove fixing.It is more firm to install.
As preferably, said filter plate is square, and filter frame is circular, and said tuck is provided with four, and said tuck stretches to four angles of said filter plate.Both had good elasticity, stability of structure when guaranteeing squeezing again.
As preferably, said elastomerics is a right cylinder, and said elastomerics center is provided with a centre hole, and said filter plate is provided with reference column, and said elastomerics is plugged on the said reference column through centre hole.Make the elastomerics stationkeeping.
As preferably, said filter plate is provided with puff port, the liquid outlet that leads to filter chamber, and said puff port is located at middle side part on the said filter plate, and said liquid outlet is positioned at middle side part under the said filter plate.
As preferably; Said filter chamber is provided with two opening for feeds; Wherein first opening for feed is located at the tuck downside of filter frame left side top, and second opening for feed is located at the tuck upside of below, filter frame right side, and said opening for feed and said puff port are vertical with line between liquid outlet.The shearing force that slurry high flow velocities is into produced.
The utility model with the elastomerics cramping between said tuck and said filter plate; And between filter frame inboard and said filter plate, be provided with sealing-ring; Filter frame, sealing-ring and two screen plates surround filter chamber, have 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 accompanying drawing and embodiment the utility model is further described:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is an A-A sectional view among Fig. 1.
Embodiment
The improved embodiment 1 of explanation the utility model dynamic filtration squeezing dewatering machine sees figures.1.and.2; Comprise at least one filtering unit, each filtering unit comprises between 1, two filter plate of two parallel filter plates the elasticity squeeze frame of being made up of elastomerics 2 and filter frame 3 being provided with in abutting connection with filter plate outward flange position; Said filter frame evenly is provided with at least two tucks 31 on the outer ring; Elastomerics is corresponding with the tuck position, and said elastomerics cramping is between said tuck and said filter plate, and elastomerics and said filter plate are fixed; Be provided with sealing-ring 4 between said filter frame inboard and said filter plate, filter frame, sealing-ring and two screen plates surround filter chamber.Said filter frame is the thin structure of tuck for framework is thick, and a circle thin wing 11 is established at said 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.Said 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 said sealing lip is fastened on the corner, said filter frame bottom.Said sealing-ring 4 inboards are provided with convexity 42, and the binding face of said filter plate and said sealing-ring is provided with draw-in groove, and said convexity is connected in and realizes in the said draw-in groove fixing.Said filter plate is square, and filter frame is circular, and said tuck is provided with four, and said tuck stretches to four angles of said filter plate.Said elastomerics is a right cylinder, and said elastomerics center is provided with a centre hole, and said filter plate is provided with reference column, and said elastomerics is plugged on the said reference column through centre hole.Said filter plate is provided with puff port 7, the liquid outlet 8 that leads to filter chamber, and said puff port is located at middle side part on the said filter plate, and said liquid outlet is positioned at middle side part under the said filter plate.Said filter chamber is provided with two opening for feeds 6, and wherein first opening for feed is located at the tuck downside of filter frame left side top, and second opening for feed is located at the tuck upside of below, filter frame right side, and said opening for feed and said puff port are vertical with line between liquid outlet.
Thickening of filter cake is the principal element that hinders filtering rate; Prevent that by the injection of liquid the initial stage of filter residue on filtration medium from depositing in a large number, utilize the thickening of principle restriction filter cake of cross flow dynamic filtration, changed traditional cake filtration mechanism; Filter pulp is perpendicular to the surface flow of filtration medium; Solid is held back by medium, forms filter cake gradually and thickens the defective that filtration velocity obviously slows down.The dynamic filtration theory application becomes a reality at the straining installation of plate frame structure.
1, two filter plates form two can propulsive piston; A middle filter frame forms a cylinder body, utilizes elastomerics to do the middle boxes location between two blocks of plates, obtains a fixedly filter chamber thickness; And completion is by the extremely last filtering conversion of cake layer of dynamic filtration of the diagonal angle or the inferior horn tangential admission of frame; After the completion filter chamber is full of filter cake under the feed pressure effect, it is imposed super high pressure hydraulic power, make two filter plates make the cylinder piston secondary and advance; Be directly passed to filter cake through filter plate and implement the squeezing to filter residue, 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.
Locate with elastomerics at edge by two filter plates, forms a filter chamber, and under the pressure prograding; Make the filter chamber thickness variable; Obtain the filter chamber of fixed thickness during filtration, and accomplish the extremely last filtering conversion of cake layer of dynamic filtration by the diagonal angle or the inferior horn tangential admission of frame, and under the effect of hydraulic pressure high pressure; Elastomerics distortion compression; Pressure passes to filter cake through filter plate, and 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; The thin filter cake of generation is moved, and moving of the fine particle of easy blocking filtration medium reduced that in the filtration period flocculation agent is agglomerated into oarse-grained dependency as fine particle; Reduced the secondary pollution of chemical, and accelerated filtration velocity mud.
2, adopt the dynamic filtration technology, the filtration period only forms thin filter cake, and the hydromechanics 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, practices thrift and invests.
3, can be to filter cake washing and air blowing, the precision of purification material with get profit.
4, after filtration finishes; The hydraulic ram that utilizes machine itself to be put; Be directly passed to mud cake through filter plate; Impose the superelevation emergent pressure, make that filter cake produces that scholar becomes, distortion, dehydration, changed protocnemes squeezing pressure filter 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 appts 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 emergent pressure that filter cake is exerted pressure can reach the several times of traditional diaphragm pressing pressure filter.
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 hydro-pump need not other types power.Whole machine using PLC is program control, carries out full automatic control.
Dewatered sludge after this machine filters squeezing; The dewatered sludge that conforms to fully or surpass general office of current national Chinese Ministry of Environmental Protection notice defined water ratio＜50% that dispatches from the factory, and (CJ/T249) regulation of standard: the mud before the landfill need carry out stabilization treatment: lateral shear intensity should be greater than 25KN/M
2, water ratio＜60%, the smelly degree after the sludge dewatering is less than 3 grades.
Claims (8)
1. the dynamic filtration squeezing dewatering machine improves; Comprise at least one filtering unit, each filtering unit comprises two parallel filter plates (1), is being provided with the elasticity squeeze frame of being made up of elastomerics (2) and filter frame (3) in abutting connection with filter plate outward flange position between two filter plates; It is characterized in that: evenly be provided with at least two tucks (31) on the said filter frame outer ring; Elastomerics is corresponding with the tuck position, and said elastomerics cramping is between said tuck and said filter plate, and elastomerics and said filter plate are fixed; Be provided with sealing-ring (4) between said filter frame inboard and said filter plate, filter frame, sealing-ring and two screen plates surround filter chamber.
2. dynamic filtration squeezing dewatering machine according to claim 1 improves; It is characterized in that: said filter frame is the thin structure of tuck for framework is thick; A circle thin wing (11) is established at said 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, and it is characterized in that: said 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 said sealing lip is fastened on the corner, said filter frame bottom.
4. dynamic filtration squeezing dewatering machine according to claim 3 improves, and it is characterized in that: said sealing-ring (4) inboard is provided with convexity (42), and the binding face of said filter plate and said sealing-ring is provided with draw-in groove, and said convexity is connected in and realizes in the said draw-in groove fixing.
5. improve according to each described dynamic filtration squeezing dewatering machine of claim 1 to 4, it is characterized in that: said filter plate (1) is for square, and filter frame (3) is circular, and said tuck (31) is provided with four, and said tuck stretches to four angles of said filter plate.
6. dynamic filtration squeezing dewatering machine according to claim 5 improves; It is characterized in that: said elastomerics (2) is a right cylinder; Said elastomerics center is provided with a centre hole, and said filter plate is provided with reference column, and said elastomerics is plugged on the said reference column through centre hole.
7. dynamic filtration squeezing dewatering machine according to claim 6 improves; It is characterized in that: said filter plate is provided with puff port (7), the liquid outlet (8) that leads to filter chamber; Said puff port is located at middle side part on the said filter plate, and said liquid outlet is positioned at middle side part under the said filter plate.
8. dynamic filtration squeezing dewatering machine according to claim 7 improves; It is characterized in that: said filter chamber is provided with two opening for feeds (6); Wherein first opening for feed is located at the tuck downside of top, filter frame left side; Second opening for feed is located at the tuck upside of below, filter frame right side, and said opening for feed and said puff port are vertical with line between liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203178239U CN202170288U (en) | 2011-08-29 | 2011-08-29 | Improved dynamic filtering and squeezing dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203178239U CN202170288U (en) | 2011-08-29 | 2011-08-29 | Improved dynamic filtering and squeezing dehydrator |
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| Publication Number | Publication Date |
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| CN202170288U true CN202170288U (en) | 2012-03-21 |
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| CN2011203178239U Expired - Fee Related CN202170288U (en) | 2011-08-29 | 2011-08-29 | Improved dynamic filtering and squeezing dehydrator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309876A (en) * | 2011-08-29 | 2012-01-11 | 浙江金鸟压滤机有限公司 | Improvement for dynamic filtration squeezing dewatering machine |
| CN104307225A (en) * | 2014-09-15 | 2015-01-28 | 浙江金鸟压滤机有限公司 | Filter press |
| CN104324537A (en) * | 2014-09-15 | 2015-02-04 | 浙江金鸟压滤机有限公司 | Filter-press technology of filter press |
| CN104324536A (en) * | 2014-09-15 | 2015-02-04 | 浙江金鸟压滤机有限公司 | Dynamic filter-press technology of filter press |
-
2011
- 2011-08-29 CN CN2011203178239U patent/CN202170288U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309876A (en) * | 2011-08-29 | 2012-01-11 | 浙江金鸟压滤机有限公司 | Improvement for dynamic filtration squeezing dewatering machine |
| CN102309876B (en) * | 2011-08-29 | 2013-08-28 | 浙江金鸟压滤机有限公司 | Improvement for dynamic filtration squeezing dewatering machine |
| CN104307225A (en) * | 2014-09-15 | 2015-01-28 | 浙江金鸟压滤机有限公司 | Filter press |
| CN104324537A (en) * | 2014-09-15 | 2015-02-04 | 浙江金鸟压滤机有限公司 | Filter-press technology of filter press |
| CN104324536A (en) * | 2014-09-15 | 2015-02-04 | 浙江金鸟压滤机有限公司 | Dynamic filter-press technology of filter press |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20130829 |