CN104324535A - Filtering equipment with vortex backwashing function, filtering method and backwashing method of filtering equipment - Google Patents
Filtering equipment with vortex backwashing function, filtering method and backwashing method of filtering equipment Download PDFInfo
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- CN104324535A CN104324535A CN201410663164.2A CN201410663164A CN104324535A CN 104324535 A CN104324535 A CN 104324535A CN 201410663164 A CN201410663164 A CN 201410663164A CN 104324535 A CN104324535 A CN 104324535A
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- pipe
- walnut shell
- screen casing
- scavenging pump
- filtering material
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- 238000001914 filtration Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011001 backwashing Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 64
- 235000009496 Juglans regia Nutrition 0.000 claims abstract description 59
- 235000020234 walnut Nutrition 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 241000758789 Juglans Species 0.000 claims description 58
- 230000002000 scavenging effect Effects 0.000 claims description 48
- 241000196324 Embryophyta Species 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000010779 crude oil Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 13
- 240000007049 Juglans regia Species 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The invention discloses filtering equipment with a vortex backwashing function, a filtering method and a backwashing method of the filtering equipment. The filtering equipment comprises a filter tank, wherein a sieve plate and a walnut shell filter material which is arranged on the upper layer of the sieve plate are arranged in the filter tank; the filter tank comprises a top opening and a bottom opening; a section of connection pipe is arranged at the top opening; the top opening is connected with a water inlet pipe through the connection pipe; the filtering equipment also comprises a cleaning pump and a sieve pipe; the connection pipe is also connected with a pumping opening of the cleaning pump through a cleaning pump inlet pipe; a first valve is arranged in the connection pipe; one end of the sieve pipe is connected with a discharge hole of the cleaning pump; one path of the other end of the sieve pipe is connected with a blow-off pipe; the other path is connected with a jet pipe; a second valve is arranged in the blow-off pipe; a screen is arranged at the joint of the sieve pipe and the blow-off pipe; and a cleaning water inlet connected with a cleaning water pipeline is also formed in the top of the filter tank. According to the filtering equipment disclosed by the invention, the material running phenomenon is avoided, the filter material is thoroughly regenerated through arrangement of the cleaning pump, and the service life of the filter material is prolonged.
Description
Technical field
The present invention relates to a kind of filter plant, specifically, relate to a kind of filter plant and filter method, the back-washing method with eddy flow backwash function.
Background technology
Walnut shell filtering material is due to the hardness of itself, desirable proportion, porous and versatility, and through special physical chemistry process (by its pigment, fat, grease, that electricity pays ion remaval is clean), make it in water treatment, have stronger oil removing performance, except solia particle, the premium properties such as easy backwash, walnut shell filtering material has been widely used in oil-contaminated water of oil field process, Industrial Wastewater Treatment and domestic use of water process.Walnut shell filter has the effect of greasy dirt in good filtered water, but has simultaneously also occurred a lot of problem in practice operation, and wherein the most outstanding is exactly the race material of filtrate in backwash process, filtrate cleaning not thoroughly, the situation that filtrate hardens.
Summary of the invention
The present invention is in order to solve the race material of existing filter plant filtrate in backwash process, and filtrate cleaning is not thorough, and the technical problem that filtrate hardens, and proposes a kind of filter plant with eddy flow backwash function, can solve the problem.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of filter plant with eddy flow backwash function, comprise filtering tank, be provided with sieve plate in described filtering tank and be arranged at the walnut shell filtering material on described sieve plate upper strata, described filtering tank comprises open top and bottom opening, described top open part is provided with one section of tube connector, described open top is connected with water inlet pipe by described tube connector, also comprise scavenging pump, and screen casing, with taking out of described scavenging pump, described tube connector also expects that mouth is connected by scavenging pump water inlet pipe, the first valve is provided with in described tube connector, described screen casing one end is connected with the discharging opening of described scavenging pump, one end is wherein connected with blow-off pipe on a road in addition, an other road is connected with jet pipe, the second valve is provided with in described blow-off pipe, described screen casing and described blow-off pipe junction are provided with screen cloth, the position be positioned at above described sieve plate in the side of described filtering tank has jet orifice, described jet orifice is connected with described jet pipe, described jet pipe is reducer pipe, the caliber of described jet pipe is extremely reduced with the link of jet orifice gradually by the link with screen casing, the top of described filtering tank also has the rinse water entrance be connected with rinse water pipeline.
Further, the top of described filtering tank also offers exhaust outlet.
Further, the top of described filtering tank also offers access hole.
Further, the side of described filtering tank also offers manhole.
Further, described manhole is positioned at above described sieve plate.
Further, the support for supporting described scavenging pump is also comprised.
Further, the side of described filtering tank also offers at least one observation window, and described observation window is provided with visor.
Further, described screen casing is vertical screen casing.
Based on any one above-mentioned filter plant, the present invention proposes a kind of filter method and back-washing method of above-mentioned filter plant simultaneously, comprises the following steps:
Filter process, described first valve conducting, oil-polluted water enters in filtering tank by tube connector, open top by water inlet pipe successively, the solid particle of decentralized photo and crude oil particle are carried out absorption interception by walnut shell filtering material, and the hydrone of continuous phase is by being discharged by described bottom opening after walnut shell filtering material, sieve plate;
Backwash process, described first valve closing, described scavenging pump work, mixture containing walnut shell filtering material and rinse water in filtering tank is extracted out successively through tube connector from described open top, scavenging pump water inlet pipe enters in scavenging pump, walnut shell filtering material is by being stirred cutting by the impeller of scavenging pump during scavenging pump, the walnut shell filtering material of caking is pulverized, then be expelled in screen casing by the discharging opening of scavenging pump, described jet pipe is the reducer pipe that caliber is extremely reduced with the link of jet orifice gradually by the link with screen casing, described mixture produces larger lateral stream when entering jet pipe by screen casing and flows to described screen casing, walnut shell filtering material in screen casing becomes eddy flow state under the effect of lateral stream, frictional force is produced by between the walnut shell filtering material broken up in screen casing, the greasy dirt sticking to walnut shell filtering material surface is separated from walnut shell filtering material surface in violent friction, part mixes is got back in filter canister by jet pipe and is started new circulation, after effect a period of time, described second valve opening, oil-polluted water is discharged from blow-off pipe, walnut shell filtering material is isolated by screen cloth.
Compared with prior art, advantage of the present invention and good effect are: the filter plant with eddy flow backwash function of the present invention, by arranging scavenging pump, by the path blockade between filtering tank and water inlet pipe in backwash process, therefore, walnut shell filtering material is only at filtering tank, scavenging pump, and circulate between screen casing, avoid and run material phenomenon, by arranging scavenging pump, the walnut shell of caking filters and can be stirred cutting by the impeller of scavenging pump, the walnut shell filtering material of caking is pulverized, avoid filtrate to harden situation, filtrate is thoroughly regenerated, extend the service life of filtrate, ensure the effect of filtering, reduce the replacing number of times of filtrate, thus greatly saved operating cost, by arranging jet pipe and screen casing in backwash process, frictional force can be produced by between the walnut shell filtering material broken up in screen casing, the greasy dirt sticking to walnut shell filtering material surface is separated from walnut shell filtering material surface in violent friction, backwash is effective, cleaning thoroughly.
After reading the detailed description of embodiment of the present invention by reference to the accompanying drawings, the other features and advantages of the invention will become clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of example structure schematic diagram with the filter plant of eddy flow backwash function proposed by the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one, the present embodiment proposes a kind of filter plant with eddy flow backwash function, as shown in Figure 1, comprise filtering tank 101, be provided with sieve plate 102 in described filtering tank 101 and be arranged at the walnut shell filtering material 103 on described sieve plate 102 upper strata, described filtering tank 101 comprises open top 104 and bottom opening 105, described open top 104 place is provided with one section of tube connector 106, described open top 104 is connected with water inlet pipe 109 by described tube connector 106, also comprise scavenging pump 201, and screen casing 301, with taking out of described scavenging pump 201, described tube connector 106 also expects that mouth 203 is connected by scavenging pump water inlet pipe 202, the first valve 110 is provided with in described tube connector 106, described screen casing 301 one end is connected with the discharging opening 205 of described scavenging pump, one end is wherein connected with blow-off pipe 401 on a road in addition, an other road is connected with jet pipe 501, the second valve 403 is provided with in described blow-off pipe 401, at described screen casing 301, described blow-off pipe 401 junction is provided with screen cloth (angle reason is not shown), the position be positioned at above described sieve plate 102 in the side of described filtering tank 101 has jet orifice 107, described jet orifice 107 is connected with described jet pipe 501, described jet orifice 107 is connected with described jet pipe 501, described jet pipe 501 is reducer pipe, the caliber of described jet pipe 501 is extremely reduced with the link of jet orifice 107 gradually by the link with screen casing 301, the top of described filtering tank 101 also has the rinse water entrance 108 be connected with rinse water pipeline.
The filter plant with eddy flow backwash function of the present embodiment, by arranging scavenging pump, by the path blockade between filtering tank and water inlet pipe in backwash process, therefore, walnut shell filtering material is only at filtering tank, scavenging pump, and circulate between screen casing, avoid and run material phenomenon, by arranging scavenging pump, the walnut shell of caking filters and can be stirred cutting by the impeller of scavenging pump, the walnut shell filtering material of caking is pulverized, avoid filtrate to harden situation, filtrate is thoroughly regenerated, extend the service life of filtrate, ensure the effect of filtering, reduce the replacing number of times of filtrate, thus greatly saved operating cost, by arranging jet pipe and screen casing in backwash process, and the caliber of jet pipe is for reduce gradually from screen casing to jet orifice, increase water and flow out speed, described mixture produces larger lateral stream when entering jet pipe by screen casing and flows to described screen casing, walnut shell filtering material in screen casing becomes eddy flow state under the effect of lateral stream, frictional force can be produced by between the walnut shell filtering material broken up in screen casing, the greasy dirt sticking to walnut shell filtering material surface is separated from walnut shell filtering material surface in violent friction, backwash is effective, cleaning thoroughly.
As a preferred embodiment, the top of described filtering tank 101 also offers exhaust outlet 111, at filter plant before backwash, discharge the air in backwash pipeline, prevent the air pressure in pipeline to be greater than ambient pressure, be unfavorable for the backwash cycles of mixture.
Conveniently overhaul filtering tank 101, the top of described filtering tank 101 also offers access hole 112.
Conveniently workman enters in filtering tank 101, and to filtering tank 101 internal overhaul, the side of described filtering tank 101 also offers manhole 113.
Preferably, described manhole 113 is positioned at above described sieve plate 102.
Further, conveniently observe walnut shell filtering material material level in filtering tank 101, and observe filtrate mobility status in tank during backwash, the side of described filtering tank also offers at least one observation window 114, described observation window 114 is provided with visor (due to angle reason, not shown), human eye can see filtering tank 101 inner case by visor.
Conveniently supporting scavenging pump 201, also comprising the support 204 for supporting described scavenging pump.The height of decision design fruit tree support 204 can support described water inlet pipe 109 and flush with described scavenging pump water inlet pipe 202, facilitates water inlet pipe 109, described scavenging pump water inlet pipe 202 and tube connector three pipe to connect.
Preferred described screen casing 301 is vertical screen casing, is convenient to filtrate flowing when backwash returns in filtering tank due to vertical screen casing, friction when increasing backwash between filtrate, be conducive to the thorough cleaning of filtrate, and vertical design more can save the device space than level design, be conducive to reducing equipment volume.
Embodiment two, based on a kind of filter plant in embodiment one, this enforcement proposes a kind of filter method and back-washing method of above-mentioned filter plant, the architectural feature of filter plant can see described in embodiment one, do not repeat at this, filter method and the back-washing method of the present embodiment comprise the following steps:
Filter process, described first valve conducting, oil-polluted water enters in filtering tank by tube connector, open top by water inlet pipe successively, the solid particle of decentralized photo and crude oil particle are carried out absorption interception by walnut shell filtering material, and the hydrone of continuous phase is by being discharged by described bottom opening after walnut shell filtering material, sieve plate;
Backwash process, described first valve closing, described scavenging pump work, mixture containing walnut shell filtering material and rinse water in filtering tank is extracted out successively through tube connector from described open top, scavenging pump water inlet pipe enters in scavenging pump, walnut shell filtering material is by being stirred cutting by the impeller of scavenging pump during scavenging pump, the walnut shell filtering material of caking is pulverized, then be expelled in screen casing by the discharging opening of scavenging pump, described jet pipe is the reducer pipe that caliber is extremely reduced with the link of jet orifice gradually by the link with screen casing, described mixture produces larger lateral stream when entering jet pipe by screen casing and flows to described screen casing, walnut shell filtering material in screen casing becomes eddy flow state under the effect of lateral stream, frictional force is produced by between the walnut shell filtering material broken up in screen casing, the greasy dirt sticking to walnut shell filtering material surface is separated from walnut shell filtering material surface in violent friction, part mixes is got back in filter canister by jet pipe and is started new circulation, after effect a period of time, described second valve opening, oil-polluted water is discharged from blow-off pipe, walnut shell filtering material is isolated by screen cloth.
The back-washing method of the filter plant of the present embodiment, by arranging scavenging pump, there is backwash process, by the path blockade between filtering tank and water inlet pipe in backwash process, therefore, walnut shell filtering material is only at filtering tank, scavenging pump, and circulate between screen casing, avoid and run material phenomenon, and caking walnut shell filter through scavenging pump can by the impeller of scavenging pump stir cutting, the walnut shell filtering material of caking is pulverized, avoid filtrate to harden situation, filtrate is thoroughly regenerated, extend the service life of filtrate, ensure the effect of filtering, reduce the replacing number of times of filtrate, thus greatly saved operating cost, by arranging jet pipe and screen casing in backwash process, and the caliber of jet pipe is for reduce gradually from screen casing to jet orifice, increase water and flow out speed, described mixture produces larger lateral stream when entering jet pipe by screen casing and flows to described screen casing, walnut shell filtering material in screen casing becomes eddy flow state under the effect of lateral stream, frictional force can be produced by between the walnut shell filtering material broken up in screen casing, the greasy dirt sticking to walnut shell filtering material surface is separated from walnut shell filtering material surface in violent friction, backwash is effective, cleaning thoroughly.By repeatedly circulation, backwash, the greasy dirt on walnut shell filtering material surface can be removed further.
Certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (9)
1. one kind has the filter plant of eddy flow backwash function, comprise filtering tank, be provided with sieve plate in described filtering tank and be arranged at the walnut shell filtering material on described sieve plate upper strata, described filtering tank comprises open top and bottom opening, described top open part is provided with one section of tube connector, described open top is connected with water inlet pipe by described tube connector, it is characterized in that, also comprise scavenging pump, and screen casing, with taking out of described scavenging pump, described tube connector also expects that mouth is connected by scavenging pump water inlet pipe, the first valve is provided with in described tube connector, described screen casing one end is connected with the discharging opening of described scavenging pump, one end is wherein connected with blow-off pipe on a road in addition, an other road is connected with jet pipe, the second valve is provided with in described blow-off pipe, described screen casing and described blow-off pipe junction are provided with screen cloth, the position be positioned at above described sieve plate in the side of described filtering tank has jet orifice, described jet orifice is connected with described jet pipe, described jet pipe is reducer pipe, the caliber of described jet pipe is extremely reduced with the link of jet orifice gradually by the link with screen casing, the top of described filtering tank also has the rinse water entrance be connected with rinse water pipeline.
2. filter plant according to claim 1, is characterized in that, the top of described filtering tank also offers exhaust outlet.
3. filter plant according to claim 2, is characterized in that, the top of described filtering tank also offers access hole.
4. filter plant according to claim 3, is characterized in that, the side of described filtering tank also offers manhole.
5. filter plant according to claim 4, is characterized in that, described manhole is positioned at above described sieve plate.
6. the filter plant according to any one of claim 1-5, is characterized in that, also comprises the support for supporting described scavenging pump.
7. the filter plant according to any one of claim 1-5, is characterized in that, the side of described filtering tank also offers at least one observation window, and described observation window is provided with visor.
8. the filter plant according to any one of claim 1-5, is characterized in that, described screen casing is vertical screen casing.
9. the filter method of filter plant and a back-washing method as described in any one of claim 1-8, is characterized in that, comprise the following steps:
Filter process, described first valve conducting, oil-polluted water enters in filtering tank by tube connector, open top by water inlet pipe successively, the solid particle of decentralized photo and crude oil particle are carried out absorption interception by walnut shell filtering material, and the hydrone of continuous phase is by being discharged by described bottom opening after walnut shell filtering material, sieve plate;
Backwash process, described first valve closing, described scavenging pump work, mixture containing walnut shell filtering material and rinse water in filtering tank is extracted out successively through tube connector from described open top, scavenging pump water inlet pipe enters in scavenging pump, walnut shell filtering material is by being stirred cutting by the impeller of scavenging pump during scavenging pump, the walnut shell filtering material of caking is pulverized, then be expelled in screen casing by the discharging opening of scavenging pump, described jet pipe is the reducer pipe that caliber is extremely reduced with the link of jet orifice gradually by the link with screen casing, described mixture produces larger lateral stream when entering jet pipe by screen casing and flows to described screen casing, walnut shell filtering material in screen casing becomes eddy flow state under the effect of lateral stream, frictional force is produced by between the walnut shell filtering material broken up in screen casing, the greasy dirt sticking to walnut shell filtering material surface is separated from walnut shell filtering material surface in violent friction, part mixes is got back in filter canister by jet pipe and is started new circulation, after effect a period of time, described second valve opening, oil-polluted water is discharged from blow-off pipe, walnut shell filtering material is isolated by screen cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410663164.2A CN104324535B (en) | 2014-11-04 | 2014-11-04 | There is filter plant and filter method, the back-washing method of eddy flow backwash function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410663164.2A CN104324535B (en) | 2014-11-04 | 2014-11-04 | There is filter plant and filter method, the back-washing method of eddy flow backwash function |
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| Publication Number | Publication Date |
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| CN104324535A true CN104324535A (en) | 2015-02-04 |
| CN104324535B CN104324535B (en) | 2016-01-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308692A (en) * | 2017-07-31 | 2017-11-03 | 胡罕平 | Calamitas urinae hominis's semi-finished product production method |
| CN108562349A (en) * | 2018-06-01 | 2018-09-21 | 中国科学院声学研究所 | A kind of ultrasonic wave detecting system and its method |
| CN110404335A (en) * | 2019-07-19 | 2019-11-05 | 麦菲特水务（广东）有限公司 | Full-automatic washing direct filter |
| CN113274780A (en) * | 2021-06-28 | 2021-08-20 | 江苏南大环保科技有限公司 | Continuous filtration adsorption process and device |
| CN114307363A (en) * | 2021-12-31 | 2022-04-12 | 中国农业大学 | An automatic backwash centrifugal-sand-gravel integrated filter |
| CN115068985A (en) * | 2021-08-31 | 2022-09-20 | 中国石油工程建设有限公司 | External rubbing high-efficiency filter and filter material cleaning method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623626A (en) * | 2013-12-10 | 2014-03-12 | 武汉市汉江石油物资技术开发有限责任公司 | High-efficiency energy-saving granular filter |
| CN204208346U (en) * | 2014-11-04 | 2015-03-18 | 青岛国标环保有限公司 | There is the filter plant of eddy flow backwash function |
-
2014
- 2014-11-04 CN CN201410663164.2A patent/CN104324535B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623626A (en) * | 2013-12-10 | 2014-03-12 | 武汉市汉江石油物资技术开发有限责任公司 | High-efficiency energy-saving granular filter |
| CN204208346U (en) * | 2014-11-04 | 2015-03-18 | 青岛国标环保有限公司 | There is the filter plant of eddy flow backwash function |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308692A (en) * | 2017-07-31 | 2017-11-03 | 胡罕平 | Calamitas urinae hominis's semi-finished product production method |
| CN108562349A (en) * | 2018-06-01 | 2018-09-21 | 中国科学院声学研究所 | A kind of ultrasonic wave detecting system and its method |
| CN110404335A (en) * | 2019-07-19 | 2019-11-05 | 麦菲特水务（广东）有限公司 | Full-automatic washing direct filter |
| CN113274780A (en) * | 2021-06-28 | 2021-08-20 | 江苏南大环保科技有限公司 | Continuous filtration adsorption process and device |
| CN115068985A (en) * | 2021-08-31 | 2022-09-20 | 中国石油工程建设有限公司 | External rubbing high-efficiency filter and filter material cleaning method |
| CN114307363A (en) * | 2021-12-31 | 2022-04-12 | 中国农业大学 | An automatic backwash centrifugal-sand-gravel integrated filter |
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| Publication number | Publication date |
|---|---|
| CN104324535B (en) | 2016-01-13 |
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Denomination of invention: Filtering equipment with vortex backwashing function, filtering method and backwashing method of filtering equipment Effective date of registration: 20180309 Granted publication date: 20160113 Pledgee: Qingdao Huitong Chinese financing Company limited by guarantee Pledgor: QINGDAO GUOBIAO ENVIRONMENTAL PROTECTION ENGINEERING CO, LTD Registration number: 2018370010014 |