CN101549222B - Filtering pool - Google Patents
Filtering pool Download PDFInfo
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- CN101549222B CN101549222B CN2009100976056A CN200910097605A CN101549222B CN 101549222 B CN101549222 B CN 101549222B CN 2009100976056 A CN2009100976056 A CN 2009100976056A CN 200910097605 A CN200910097605 A CN 200910097605A CN 101549222 B CN101549222 B CN 101549222B
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Abstract
The invention relates to an filtering pool, includes a square pool, multichip unit filters arranged in the pool, a first clapboard, a second clapboard, a third clapboard connected in turns in the pool, the first clapboard is erected in between a water outlet end and end of the multichip unit filters, the second clapboard is supported on bottom of the multichip unit filters and kept space from bottom of the pool, filter bracket of each unit filter includes a substrate and a frame-type lateral plate, filtration medium is lied on external surface of the frame-type lateral plate and the substrate on the bottom is provided with at least one purified water outlet, and position on the second clapboard corresponding to each purified water outlet is provided with purified water outlet. Comparing with the prior art, the invention applies combination of unit filter processing units, capable of setting processing units flexibly according to processing capacity. The invention provides advantages oflow energy consumption, filter screen with small pore diameter, abrasion-resistance, high fltering speed, good water quality, high processing efficiency, easy replacement and low cost.
Description
Technical field
The present invention relates to technical field of sewage treatment, especially refer to a kind of filtering ponds that adopt the transverse stream filtering mode.
Background technology
At present, being used to handle the more employing turntable filter chamber of filtering ponds of cooling water, waste water, is that the Chinese utility model patent " be used for sewage water depth-type filtration handle fibre turntable filter chamber " of 200720173409.9 (notification number is CN201085959Y) discloses a kind of turntable filter chamber as the patent No..Its pond body is made up of cesspool and clear water reserviors, and be interconnected, hollow water outlet axle is fixed in the cesspool, and link to each other with transmission mechanism, the rotation filter disc is by six side's connectors and hollow water outlet axle relative fixed, and the outer ring of rotation filter disc is provided with outer plate, and the filter cloth back suction is inhaled the sucker of device by being fixed on the side that rotates filter disc with the relatively-stationary sucker fixing of pond body wall, sucker is provided with suction inlet, and extraction mud pipe places the cesspool bottom.But turntable filter chamber is in filtering rotation process, and the filter cake that forms on rotating disk is easily destroyed, influence the water outlet effect, and turntable filter chamber is owing to the limitation of design principle, and actual effective filtration area only accounts for 1/2nd of total rotating disk area in filter process; And this turntable filter chamber need drive whole dial rotation, and energy consumption is higher, safeguards also trouble.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of filter efficiency higher filtering ponds at above-mentioned prior art present situation, it adopts the intensive filtering material that filters the duct of band as filter medium, and effluent quality is good, the filter effect ideal, operation and safeguard simple and conveniently, and energy consumption is lower.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: these filtering ponds is characterized in that including:
The square pond body of one open-top, this pond body sidewall longitudinally has water inlet, and another sidewall on the other side has delivery port;
Longitudinally be erected at the multi-disc unit filter core that is arranged in parallel each other in the body of described pond, each unit filter core comprises filter core frame and the filter medium that is laid on the filter core frame two sides;
Be arranged on first dividing plate, second partition, the 3rd dividing plate that connect successively in the body of described pond, this first dividing plate is erected between the end of described water outlet end place and multi-disc unit filter core, this second partition be supported on described multi-disc unit filter core the bottom and and the bottom of pond body between leave spacing, to form clean water area between first dividing plate and the pond body sidewall and between second partition and the pond body bottom, the 3rd dividing plate one end links to each other with second partition, and the other end links to each other with pond body inwall;
Wherein, filter core frame in each unit filter core comprises four side seals substrate that closes and the frame-type side plate that is arranged on the substrate both sides up and down, described filter medium just is tiled in the outer surface of this frame-type side plate, and, offer at least one pure water inlet on the substrate of bottom, and the position of corresponding each pure water inlet has the water purification import on the described second partition.
Described filter medium can adopt has the intensive various filtering materials that filter the duct, also can adopt filter cloth or filter screen or silk screen or porous filter plate etc., because filter cloth has higher hydrophilic effect, cost is also cheaper, is the best to adopt filter cloth especially.
For strengthening the water stream channel of water inlet, so that flocculant fully mixes with sewage, so that make sewage reach good flocculating degree, for the filtration of filter medium is got ready, the sewage of avoiding being added with flocculant directly enters the filtering area at filter core place, multi-disc unit, the inherent inlet end of described pond body place can erect a bottom and the baffle plate that pond body inwall links to each other, the top is higher than described filter core top of the trellis, makes to form intake tunnel between baffle plate and pond body inwall.
For ease of the liquid level in the body of control pond, strengthen the treating capacity of filtering ponds, the inherent water outlet end of described pond body place is provided with an effluent weir, water purification in the clean water area at last can be through the top of effluent weir and to flow out the pond from delivery port external, the overhead height of this effluent weir is exactly the liquid level in the body of pond, and under the state that does not set out mill weir, the liquid level in the body of pond and the bottom of delivery port flush.
Adopt at filter medium under the situation of filter cloth, filter cloth on each frame-type side plate outer surface can be a whole piece, it is separately fixed on four sides of frame-type side plate on four limits up and down, but under the bigger situation of filter core frame lateralarea, the filter cloth area of full slice system will be bigger, its central filter cloth is loosening easily and unsteady with sewage, influence filter effect, for ease of filter cloth fixedly installing on the frame-type side plate, simultaneously can guarantee filter effect, described filter cloth can be made of the equally distributed unit of polylith filter cloth, and each unit filter cloth is fixed on its four sides on the frame-type side plate respectively by four press strips.
For making the clean water area that can successfully enter into the second partition below from the water purification of the pure water inlet output of filter core frame bottom, avoid water purification to run off from the substrate and the slit between the second partition of filter core frame bottom, can be provided with a water purification efferent duct on each pure water inlet of bottom substrate in the described filter core frame, and each the water purification import in the described second partition is provided with an intubate, each water purification efferent duct is inserted on the second partition in the intubate in the corresponding water purification import, by the inserting of water purification efferent duct and intubate, between filter core frame bottom substrate and second partition, form good being tightly connected.
For preventing that the sludge settling thing in the mud collection area enters into clean water area from the slit between intubate and the water purification efferent duct between the 3rd dividing plate and the baffle plate, and influence effluent quality, each water purification efferent duct is outer can be arranged with spring sealed circle, but the characteristic of the elastic telescopic of this spring sealed circle, can be applicable to water purification efferent duct different inserting degree in the intubate on second partition, very practical.
Filter medium in each unit filter core is after work after a while, must adhere to many flcos, dirt, impurity etc., for ease of the filter medium in each unit filter core is cleaned, described filtering ponds can also include a sucked type back purge system, this sucked type back purge system include can be on body top, pond walking longitudinally support, be fixed at least one L type blow-off pipe on the support and the dirt discharge groove that external side longitudinally is provided with in the pond;
Wherein, the lateral part of this L type blow-off pipe is laterally crossed on multi-disc unit filter core, have air admission hole on the top of lateral part, verticallydownwardly is communicated with many blowdowns and is in charge of on the bottom of lateral part, the outside that extend into one or both sides filter medium in each unit filter core correspondingly is in charge of in every blowdown, and every blowdown is in charge of and is communicated with at least one sucker, and the opening of this sucker is pressed close to the outer surface of corresponding filter medium;
The vertical part end of this L type blow-off pipe is provided with valve, and is open-ended towards dirt discharge groove, and this dirt discharge groove one end has sewage draining exit;
This L type blow-off pipe is provided with water injection pipe in the bending place.
For improving the comprehensive treatment capability of equipment, the other end of described the 3rd dividing plate can link to each other with pond body bottom, between the 3rd dividing plate and described baffle plate and pond body inwall, to form mud collection area, on the body of the pond at this mud collection area place, offer mud mouth, and, be arranged in each unit filter core filter medium bottom sides and be provided with a cleaning shoe along the bottom of that last sucker, this cleaning shoe at L type blow-off pipe when the pond body vertically moves, can swipe to the filter medium edge of correspondence, scrape into to mud collection area with the mud that the filter medium bottom is concentrated, discharge outside the body of pond from mud mouth at last.
The described support that can longitudinally walk on body top, pond can adopt existing various technology, for making structure simpler, be convenient to implement, this support can be one by motor-driven vehicle frame, and, be vertically arranged with a secondary track in both sides, body top, pond, roller in the vehicle frame is walking under the driving of motor and in orbit, this motor is fixed on the L type blow-off pipe top, when vehicle frame when the pond body is vertically walked, L type blow-off pipe is all followed vehicle frame together with motor and is moved.
For support can automatically be moved back and forth along track, thereby filter medium is carried out repeatedly flushing, the two ends of described track can respectively be provided with a limit switch in the position of corresponding support, described motor is reversible motor, and this limit switch links to each other with described motor and control motor just, reverse work, when support moves to one of them end of track and when touching limit switch, limit switch is just controlled motor and changed direction work, thereby support is moved round about.
Sucker wherein is good with each corner that can spread all over the filter medium surface, also be, when L type blow-off pipe is followed support together when the pond body is vertically walked, the size of sucker can cover that segment distance of filter medium in the vertical direction, if but a filter medium is provided with a sucker, under the bigger situation of filter media area, the soil pick-up dirt poor effect of sucker, for improving the efficient of sucker soil pick-up dirt, assurance is to the cleaning performance of filter medium, every blowdown is in charge of to extend downwards many blow down branch, every blowdown be in charge of and the end of blow down branch on all be provided with a described sucker, a plurality of suckers that are arranged in each unit filter core filter medium one side have just in time covered the distance of filter medium in the vertical direction from top to bottom.
For guaranteeing the cleaning action of blow-off pipe to each filter medium of each filter core both sides, unit, can be provided with two L type blow-off pipes on the described support, the blowdown of every L type blow-off pipe below be in charge of and blow down branch on sucker all be arranged in a side of the same side filter medium of every blade unit filter core, so, the cleaning of the every just responsible every blade unit filter core the same side of L type blow-off pipe filter medium.
Compared with prior art, the present invention adopts the intensive filtering material effect filtering medium that filters the duct of band, and its filter screen aperture is little, the porosity height, wear-resistant, hydrophilicity is good, and filtering velocity is also high, and effluent quality is good, treatment effeciency is higher, and is convenient to change, and is with low cost;
The water-wet behavior of filter cloth makes the suspension in the water be difficult for cohering on filter cloth, has reduced cleaning frequency, and the backwash number of times is few, has also reduced energy consumption, and the also available silk screen of this filter cloth, filter screen, filter plate are replaced;
And, adopt the processing unit combination of unit filter core, can be according to the flexible set handling of the treating capacity in filter tank unit, energy consumption is low, and treating capacity is big;
Take up an area of for a short time, the space is saved, and is easy to implement, maintenance easily, maintenance cost is low;
Filtering ponds of the present invention can be realized automatic operating, move and safeguard simple and convenient, can 24 hours unmanned operation continuously.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 be among Fig. 1 A-A to cutaway view;
Fig. 4 is that the B-B of Fig. 2 is to cutaway view;
Fig. 5 is for removing the structural representation of the unit filter core behind the filter cloth in the embodiment of the invention;
Fig. 6 is the enlarged drawing of I portion among Fig. 1 (the water purification efferent duct also is not inserted among the intubate in the second partition fully).
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 6, these filtering ponds include:
The square pond body 1 of one open-top, this pond body 1 sidewall longitudinally has water inlet 11, and another sidewall on the other side has delivery port 12;
Longitudinally be erected at the multi-disc unit filter core 2 that is arranged in parallel each other in the described pond body 1, each unit filter core 2 comprises filter core frame 21 and the filter cloth 22 that is laid on filter core frame 21 two sides;
And, described pond body 1 inherent water inlet 11 end places erect the baffle plate 13 that a bottom links to each other with pond body 1 inwall, the top is higher than described filter core frame 21 tops, make and between baffle plate 13 and pond body 1 inwall, form intake tunnel A, and described pond body 1 inherent delivery port 12 end places are provided with an effluent weir 14, and described multi-disc unit filter core 2 just just in time longitudinally is arranged between described baffle plate 13 and the effluent weir 14 along pond body 1;
Simultaneously, also be provided with first dividing plate 31 that connects successively in the described pond body 1, second partition 32, the 3rd dividing plate 33, this first dividing plate 31 is erected between the end of described effluent weir 14 and multi-disc unit filter core 2, this second partition 32 be supported on described multi-disc unit filter core 2 the bottom and and the bottom of pond body 1 between leave spacing, to form clean water area C between first dividing plate 31 and pond body 1 sidewall and between second partition 32 and pond body 1 bottom, and the pond body 1 interior space at multi-disc unit filter core 2 places is exactly filtering area B directly over this second partition 32, the 3rd dividing plate 33 1 ends link to each other with second partition 32, the other end links to each other with pond body 1 bottom, between the 3rd dividing plate 33 and described baffle plate 13 and pond body 1 inwall, to form mud collection area D, on the pond body 1 at this mud collection area D place, offer mud mouth 15;
Wherein, filter core frame 21 in each unit filter core 2 comprises four side seals substrate 23 that closes and the frame-type side plate 24 that is arranged on substrate 23 both sides up and down, described filter cloth 22 is made of the equally distributed unit of polylith filter cloth, each unit filter cloth is fixed on its four sides on the frame-type side plate 24 respectively by four press strips 25, and is tiled on the outer surface of each frame-type side plate 24;
Whole unit filter core 2 is the structure of hollow, when being covered with sewage in the pond body 1, sewage can only flow into the inside of each unit filter core 2 through filter cloth 22, and, offer three pure water inlet 23a on the substrate 23 of bottom, and the position of corresponding each pure water inlet 23a has water purification import 32a on the second partition 32, and, each pure water inlet 23a of bottom substrate 23 is provided with a water purification efferent duct 23b, each water purification efferent duct 23b is arranged with a spring sealed circle 23c outward, and each the water purification import 32a in the described second partition 32 is provided with an intubate 32b, each water purification efferent duct 23b is inserted in the intubate 32b corresponding on the second partition 32, thereby makes the water purification of filter core frame 21 inside pass through this water purification efferent duct 23b, intubate 32b and flowing in the clean water area C of second partition 32 belows.
These filtering ponds also include a sucked type back purge system, and this sucked type back purge system includes the support 4 that can longitudinally walk, a dirt discharge groove 7 that is fixed on two on the support 4 L type blow-off pipes 5 that be arranged in parallel and longitudinally is provided with in pond body 1 outside on pond body 1 top;
Wherein, the lateral part 51 of every L type blow-off pipe 5 is laterally crossed on multi-disc unit filter core 2, have air admission hole 51a on the top of lateral part 51, verticallydownwardly is communicated with many blowdowns and is in charge of 6 on the bottom of lateral part 51, and it is consistent that the number of 6 number and unit filter core 2 is in charge of in this blowdown;
Wherein 6 sides that extend into a wherein filter cloth 22 that is positioned at homonymy in each unit filter core 2 correspondingly are in charge of in the blowdown under L type blow-off pipe 5,6 sides that extend into opposite side filter cloth 22 in each unit filter core 2 correspondingly are in charge of in blowdown under another root L type blow-off pipe 5, also be, the cleaning of another side filter cloth 22 relatively in each unit filter core 2 is responsible in a cleaning of being responsible for a filter cloth 22 in each unit filter core 2 in two L type blow-off pipes 5, another root;
And, every blowdown is in charge of also to extend downwards on 6 in the present embodiment two blow down branch 61, every blowdown be in charge of 6 and the end of every blow down branch 61 on all be provided with a sucker 8 communicatively, the opening 81 of this sucker 8 is pressed close to the outer surface of corresponding filter cloth 22, three suckers 8 that are arranged in each unit filter core 2 filter clothes 22 1 side have just in time covered the distance of corresponding filter cloth 22 in the vertical directions from top to bottom, so, when vehicle frame 4 along pond body 1 vertically during walking, three suckers 8 just can traverse all filter clothes 22 surfaces, and the bottom of that sucker 8 of bottommost is provided with a cleaning shoe 82;
This L type blow-off pipe 5 is provided with water injection pipe 53 in the bending place;
Be vertically arranged with a secondary track 16 in both sides, pond body 1 top, described support 4 is vehicle frames 4 of a band roller, this vehicle frame 4 passes through walking on track 16 under the drivings of belt at a reversible motor 41, the two ends of track 16 respectively are provided with a limit switch 9 in the position of corresponding support 4, this limit switch 9 link to each other with described motor 41 and control motor 41 just, reverse work, thereby the roller in the vehicle frame 4 just vertically moves back and forth along pond body 1.
Operation principle is as follows:
Sewage is driven in the pond body 1 by the water inlet 11 of water pump from pond body 1 one sides, flow through between baffle plate 13 and pond body 1 inwall intake tunnel A and be covered with whole filtering area B, sewage flows into the inside of each unit filter core 2 through filter cloth 22, then flow into the clean water area C of second partition 32 belows from the pure water inlet 23a of filter core frame 21 bottoms, at last through effluent weir 14 and delivery port 12 from pond body 1 outputs to the external world;
When needing backwash filter cloth 22, by water injection pipe 53 the vertical part 52 in two L type blow-off pipes 5 is filled with water in advance, and delivery port 12 places have current to be driven in the pond body 1, these current flow into each unit filter core 2 inside through the water purification import 32a on the second partition 32, open motor, make support 4 vertically begin to move back and forth along pond body 1, open the valve 52a of two L type blow-off pipes, 5 vertical parts, 52 ends simultaneously, utilize siphon principle, many blowdowns in every L type blow-off pipe 5 under the lateral part 51 be in charge of 6 and blow down branch 61 on a plurality of suckers 8 will continuously the dirt on the corresponding filter cloth 22 be sucked, dirt together with current through blow down branch 61 separately, blowdown is in charge of 6 and be pooled in the lateral part 61 of L type blow-off pipe 5, at last in the vertical part 52 open-ended inflow dirt discharge grooves 7 of L type blow-off pipe 5.
Claims (13)
1. filtering ponds is characterized in that including:
The square pond body of one open-top, this pond body sidewall longitudinally has water inlet, and another sidewall on the other side has delivery port;
Longitudinally be erected at the multi-disc unit filter core that is arranged in parallel each other in the body of described pond, each unit filter core comprises filter core frame and the filter medium that is laid on the filter core frame two sides;
Be arranged on first dividing plate, second partition, the 3rd dividing plate that connect successively in the body of described pond, this first dividing plate is erected between the end of described water outlet end place and multi-disc unit filter core, this second partition be supported on described multi-disc unit filter core the bottom and and the bottom of pond body between leave spacing, to form clean water area between first dividing plate and the pond body sidewall and between second partition and the pond body bottom, the 3rd dividing plate one end links to each other with second partition, and the other end links to each other with pond body inwall;
Wherein, filter core frame in each unit filter core comprises four side seals substrate that closes and the frame-type side plate that is arranged on the substrate both sides up and down, described filter medium just is tiled in the outer surface of this frame-type side plate, and, offer at least one pure water inlet on the substrate of bottom, and the position of corresponding each pure water inlet has the water purification import on the described second partition.
2. filtering ponds according to claim 1 is characterized in that: described filter medium is filter cloth or filter screen or porous filter plate.
3. filtering ponds according to claim 1 is characterized in that: the inherent inlet end of described pond body place erects a bottom and the baffle plate that pond body inwall links to each other, the top is higher than described filter core top of the trellis, makes to form intake tunnel between baffle plate and pond body inwall.
4. filtering ponds according to claim 1 is characterized in that: the inherent water outlet end of described pond body place is provided with an effluent weir.
5. filtering ponds according to claim 1 is characterized in that: described filter medium is a filter cloth, and filter cloth is made of the equally distributed unit of polylith filter cloth, and each unit filter cloth is fixed on its four sides on the frame-type side plate respectively by four press strips.
6. filtering ponds according to claim 1, it is characterized in that: each pure water inlet of bottom substrate is provided with a water purification efferent duct in the described filter core frame, and each the water purification import in the described second partition is provided with an intubate, and each water purification efferent duct is inserted on the second partition in the intubate in the corresponding water purification import.
7. filtering ponds according to claim 6 is characterized in that: each water purification efferent duct is arranged with a spring sealed circle outward.
8. according to the described filtering ponds of arbitrary claim in the claim 1 to 7, it is characterized in that: also include a sucked type back purge system, this sucked type back purge system include can be on body top, pond walking longitudinally support, be fixed at least one L type blow-off pipe on the support and the dirt discharge groove that external side longitudinally is provided with in the pond;
Wherein, the lateral part of this L type blow-off pipe is laterally crossed on multi-disc unit filter core, have air admission hole on the top of lateral part, verticallydownwardly is communicated with many blowdowns and is in charge of on the bottom of lateral part, the outside that extend into filter medium in each unit filter core correspondingly is in charge of in every blowdown, and every blowdown is in charge of and is communicated with at least one sucker, and the opening of this sucker is pressed close to the outer surface of corresponding filter medium;
The vertical part end of this L type blow-off pipe is provided with valve, and is open-ended towards dirt discharge groove, and this dirt discharge groove one end has sewage draining exit;
This L type blow-off pipe is provided with water injection pipe in the bending place.
9. filtering ponds according to claim 3, it is characterized in that: also include a sucked type back purge system, this sucked type back purge system include can be on body top, pond walking longitudinally support, be fixed at least one L type blow-off pipe on the support and the dirt discharge groove that external side longitudinally is provided with in the pond;
Wherein, the lateral part of this L type blow-off pipe is laterally crossed on multi-disc unit filter core, have air admission hole on the top of lateral part, verticallydownwardly is communicated with many blowdowns and is in charge of on the bottom of lateral part, the outside that extend into filter medium in each unit filter core correspondingly is in charge of in every blowdown, and every blowdown is in charge of and is communicated with at least one sucker, and the opening of this sucker is pressed close to the outer surface of corresponding filter medium;
The vertical part end of this L type blow-off pipe is provided with valve, and is open-ended towards dirt discharge groove, and this dirt discharge groove one end has sewage draining exit;
This L type blow-off pipe is provided with water injection pipe in the bending place;
The other end of described the 3rd dividing plate links to each other with pond body bottom, between the 3rd dividing plate and described baffle plate and pond body inwall, to form mud collection area, on the body of the pond at this mud collection area place, offer mud mouth, and, be arranged in each unit filter core filter medium bottom sides and be provided with a cleaning shoe along the bottom of that last sucker.
10. filtering ponds according to claim 8, it is characterized in that: described can be on body top, pond longitudinally the support of walking be one by motor-driven vehicle frame, and, being vertically arranged with a secondary track in both sides, body top, pond, the roller in the vehicle frame is walking under the driving of motor and in orbit.
11. filtering ponds according to claim 10, it is characterized in that: the two ends of described track respectively are provided with a limit switch in the position of corresponding support, described motor is reversible motor, and this limit switch links to each other with described motor and control motor just, reverse work.
12. filtering ponds according to claim 8, it is characterized in that: every blowdown is in charge of also to extend downwards many blow down branch, every blowdown be in charge of and the end of blow down branch on all be provided with a described sucker, a plurality of suckers that are arranged in each unit filter core filter medium one side have just in time covered the distance of filter medium in the vertical direction from top to bottom.
13. filtering ponds according to claim 12, it is characterized in that: described support is provided with two L type blow-off pipes, the blowdown of every L type blow-off pipe below be in charge of and blow down branch on sucker all be arranged in a side of the same side filter medium of every blade unit filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100976056A CN101549222B (en) | 2009-04-10 | 2009-04-10 | Filtering pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100976056A CN101549222B (en) | 2009-04-10 | 2009-04-10 | Filtering pool |
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| Publication Number | Publication Date |
|---|---|
| CN101549222A CN101549222A (en) | 2009-10-07 |
| CN101549222B true CN101549222B (en) | 2011-05-18 |
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| CN2009100976056A Active CN101549222B (en) | 2009-04-10 | 2009-04-10 | Filtering pool |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872632B (en) * | 2012-09-18 | 2015-07-15 | 广州市地龙环保技术有限公司 | Fixed plate frame microfiltration device |
| CN104524838B (en) * | 2014-12-08 | 2017-01-11 | 上海同济环境工程科技有限公司 | Separation and collection system and method for solid pollutants in solid-liquid mixed solution |
| CN109091943B (en) * | 2017-06-20 | 2024-02-23 | 芜湖美的厨卫电器制造有限公司 | Water purifying device and water heater |
| CN109652812A (en) * | 2018-12-14 | 2019-04-19 | 永兴特种不锈钢股份有限公司 | A kind of acid-washing stainless steel line acid liquor filtering device |
| CN115317986A (en) * | 2022-10-10 | 2022-11-11 | 佛山市绿田环保机械设备有限公司 | Automatic back flush sewage treatment device and control system thereof |
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2009
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Owner name: ZHEJIANG DEAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DEAN NEW-TECHNOLOGY DEVELOPMENT CO., LTD., ZHEJIANG Effective date: 20101110 |
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