CN106582089A - Hydraulic driven automatic self-cleaning filter - Google Patents
Hydraulic driven automatic self-cleaning filter Download PDFInfo
- Publication number
- CN106582089A CN106582089A CN201611044260.4A CN201611044260A CN106582089A CN 106582089 A CN106582089 A CN 106582089A CN 201611044260 A CN201611044260 A CN 201611044260A CN 106582089 A CN106582089 A CN 106582089A
- Authority
- CN
- China
- Prior art keywords
- pipe
- filter
- chamber
- filter core
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000010865 sewage Substances 0.000 claims abstract description 22
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 11
- 238000009530 blood pressure measurement Methods 0.000 claims description 7
- 230000000740 bleeding effect Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6438—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
- B01D29/6446—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a hydraulic driven automatic self-cleaning filter. A sewage suction pipe comprises a main pipe and a plurality of branch pipes. The main pipe and the branch pipes are communicated with each other. Each branch pipe is provided with a suction nozzle, and each suction nozzle is tightly arranged on the internal wall of a filter core. One end of the main pipe is sealed and is rotatingly arranged on an upper end socket, and the other end of the main pipe is rotatingly arranged on a separation plate, penetrates the separation plate, and stretches into a sewage discharge cavity. The end, which stretches into the sewage discharge cavity, of the main pipe is provided with a hydraulic whirl spraying pipe, which comprises at least one Z-shaped pipe with two opened ends. The Z-shaped pipe is vertical to the rotation axis of a sewage discharge pipe, moreover, the Z-shaped pipe and the sewage discharge pipe are communicated with each other so as to conveniently discharge the sewage in the sewage discharge pipe into the sewage discharge cavity, and the couple moment of opposite force generated by the water discharged from the Z-shaped pipe drives the sewage suction pipe to rotate so as to control the suction nozzles to wash the filter core. The provided filter does not need an external power source; the sewage suction pipe is driven by self hydraulic force to rotate and suck the sewage; the cost is low, the structure is simple, the energy consumption is low, and the efficiency is high.
Description
Technical field
The present invention relates to a kind of filtration and the device of separation field, more particularly, to a kind of hydro powered it is full-automatic from
Cleaning filter.
Background technology
Filter net type self-cleaning filter as a kind of Novel filtration technology, with high degree of automation, crushing be little, structure is simple
Single the advantages of, is widely used in the fields such as industry, agricultural, municipal administration, ship ocean.At present, common filter water inlet and delivery port
Often not on one wire, pipe arrangement difficulty is big, and cleaning filter generally requires to be driven by motor, high cost, energy
Consumption is big.
The content of the invention
The purpose of the present invention is to need motor to drive to solve cleaning device of the prior art, and high cost, energy consumption is big
A kind of problem, there is provided Full-automatic self-cleaning filter of hydro powered.
The present invention is the deficiency for solving above-mentioned technical problem, and the technical scheme for being adopted is：
A kind of Full-automatic self-cleaning filter of hydro powered, including filter body, filter body is by mounted thereto
The upper cover at end coordinates the bore seal of filter body into sealed chamber, sealed chamber with the low head installed in its lower end
Dividing plate is inside fixed with, dividing plate sealed chamber is divided into the overanxious chamber and blowdown chamber of mutual isolation, in overanxious chamber inner core is provided with,
Filter chamber is divided into interior tube inner chamber and inner core exocoel two parts by inner core, delivery port is communicated with interior tube inner chamber, on inner core exocoel
Water inlet is connected with, the through hole for connecting interior tube inner chamber and inner core exocoel is offered on inner core, filter is installed in interior tube inner chamber
Interior tube inner chamber is divided into filter core inner chamber and filter core exocoel, through hole and filter core inner space, delivery port and filter core exocoel by core, filter core
Connection, the water that water inlet is entered enters the filtration of Jing filtration cores after filter core inner chamber by inner core exocoel, then enters from filter core exocoel
Enter delivery port discharge, dirt sucking tube is installed in filter core inner chamber, dirt sucking tube includes the supervisor being interconnected and some arms, on arm
Suction nozzle is provided with, suction nozzle is sticked on filter core inwall, one end of supervisor seals and is rotatably installed on upper cover, and supervisor's is another
End is rotatably arranged on dividing plate and the end is stretched in blowdown chamber through dividing plate, and supervisor is provided with waterpower on the one end in blowdown chamber
Churning pipe, the Z-type pipe of hydraulic jet grouting pipe including at least one both ends open, Z-type pipe is vertical with the rotating shaft of blow-off pipe and Z-type pipe and
Blow-off pipe is interconnected in order to the sewage in blow-off pipe is entered in blowdown chamber, and it is reverse that the water discharged by Z-type pipe is produced
The moment of couple drives dirt sucking tube to rotate to control suction nozzle cleaning filter core.
The total length of described suction nozzle is more than the length of filter core, and projection section of the two neighboring suction nozzle on supervisor is overlapped.
Described suction nozzle is pressed on filter core inwall by the elastic acting force of wavy spring.
Blowoff valve is installed on described blowdown chamber, control cabinet and differential pressure measurement instrument are provided with filter body, lead to
Overpressure difference measuring instrumentss measure pressure difference between water inlet and delivery port, and measured value is sent to into the control cabinet, and by control
The opening and closing of case control of sewage disposal valve processed.
Described water inlet and the center line of delivery port overlaps.
Air bleeding valve is installed on described upper cover.
The present invention operation principle be：When filter works, water to be filtered is entered by water inlet, laggard via filter element filtering
Enter inner core, impurities in water is stayed on filter core inwall, and inner core is connected with delivery port, the water after filtration flows out through delivery port.Work as filter
After in-core wall impurities accumulation is excessive, pressure difference increase inside and outside filter screen in filter core, when the pressure difference increases to preset value, control
Case control of sewage disposal valve processed is opened, and the filtered water in filter core outside reversely flows through filter screen in suction nozzle, while rinsing out in filter core
The impurity of wall, the sewage of back flush enters hydraulic jet grouting pipe and produces recoil strength F1 and F2, F1 and F2 composition power via dirt sucking tube
Even, the moment of couple that it is produced drives dirt sucking tube and suction nozzle rotation, completes filter element cleaning, and pressure difference is reduced immediately, after the completion of cleaning,
Blowoff valve is closed, and immediately hydraulic jet grouting pipe stops the rotation, and completes a cleaning frequency.
The invention has the beneficial effects as follows：1 without the need for external power supply, and only leading to filter interior itself carries out hydro powered soil pick-up
Pipe rotates soil pick-up, and low cost, simple structure, energy consumption is low, efficiency high；
2 realize filter water inlet with delivery port collinearly by adding inner core in filter, compact conformation, pipeline arrangement side
Just；
3 filter bottoms adopt form of flanges, easy accessibility to be easy to the cleaning of filter bottom residual soil；
4 compare hairbrush cleaning filter screen using suction nozzle soil pick-up, and efficiency high, blowdown flow rate is little.
Description of the drawings
Fig. 1 is internal structure schematic diagram of the present invention.
Fig. 2 is the side view of Fig. 1 in the present invention.
Fig. 3 is the top view of hydraulic jet grouting pipe in the present invention.
Graphical indicia：1st, filter body；2nd, upper cover；3rd, water inlet；4th, delivery port；5th, inner core；6th, blowoff valve；7th, filter
Core；8th, suction nozzle；9th, air bleeding valve；10th, hydraulic jet grouting pipe；11st, control cabinet；12nd, differential pressure measurement instrument；13rd, low head；14th, soil pick-up
Pipe；15th, dividing plate；16th, blowdown chamber；17th, wavy spring.
Specific embodiment
Shown in figure, specific embodiment is as follows：
A kind of Full-automatic self-cleaning filter of hydro powered, including filter body 1, filter body 1 is by installed in it
The upper cover 2 of upper end coordinates the bore seal of filter body 1 into sealed chamber with the low head 13 installed in its lower end, close
Envelope within the chamber is fixed with dividing plate 15, and sealed chamber is divided into dividing plate 15 the overanxious chamber and blowdown chamber 6 of mutual isolation, in overanxious chamber
Inner core 5 is installed, filter chamber is divided into interior tube inner chamber and inner core exocoel two parts, on interior tube inner chamber water outlet is communicated with by inner core 5
Mouth 4, is connected with water inlet 3 on inner core exocoel, the through hole for connecting interior tube inner chamber and inner core exocoel is offered on inner core 5, interior
Filter core 7 is installed, interior tube inner chamber is divided into filter core inner chamber and filter core exocoel, through hole to connect with filter core inner chamber by filter core 7 in tube inner chamber
Logical, delivery port 4 is connected with filter core exocoel, and the water that water inlet is entered enters Jing filtration cores 7 after filter core inner chamber by inner core exocoel
Filter, then discharge into delivery port 4 from filter core exocoel, dirt sucking tube 14 is installed in filter core inner chamber, dirt sucking tube 14 includes mutual
The supervisor of connection and some arms, are provided with suction nozzle 8 on arm, suction nozzle 8 is sticked on the inwall of filter core 7, one end sealing of supervisor
And be rotatably installed on upper cover 2, the other end of supervisor is rotatably arranged on dividing plate 15 and blowdown is stretched in the end through dividing plate 15
In chamber 16, supervisor is provided with hydraulic jet grouting pipe 10 on the one end in blowdown chamber 16, and hydraulic jet grouting pipe 10 includes at least one liang
The Z-type pipe of end opening, Z-type pipe is vertical with the rotating shaft of blow-off pipe and Z-type pipe is interconnected in order to by blow-off pipe with blow-off pipe
Sewage enter in blowdown chamber 16, the reverse moment of couple that the water discharged by Z-type pipe is produced drives dirt sucking tube 14 to rotate to control
Suction nozzle 8 cleans filter core 7.
The total length of described suction nozzle 8 is more than the length of filter core 7, projection section weight of the two neighboring suction nozzle 8 on supervisor
It is folded.
Described suction nozzle 8 is adjacent on the inwall of filter core 7 by the elastic acting force of wavy spring 17.
Blowoff valve 6 is installed on described blowdown chamber 16, control cabinet 11 and pressure difference test meter are provided with filter body 1
Table 12, by differential pressure measurement instrument 12 pressure difference between water inlet and delivery port is measured, and measured value is sent to into the control cabinet
11, and by the opening and closing of the control of sewage disposal valve 6 of control cabinet 11.
Described water inlet 3 and the center line of delivery port 4 overlaps.
Air bleeding valve 9 is installed on described upper cover 2.
As shown in the figure：A kind of Full-automatic self-cleaning filter of hydro powered, including filter body 1, the filter
Control cabinet 11 and differential pressure measurement instrument 12 are provided with outside body 1, the side of the filter body 1 is provided with conllinear water inlet
3 and delivery port 4, there is upper cover 2 on the top of the filter body 1, there is air bleeding valve 9, the filter body on the upper cover 2
There is inner core 5 inside 1, the inner core 5 is connected with delivery port 4, filter core 7 is installed in the inner core 5, having in the filter core to revolve
The dirt sucking tube 14 for turning, is provided with suction nozzle 8 on the dirt sucking tube, dividing plate 15 and the shape of filter low head 13 are arranged at the bottom of the inner core 5
Into blowdown chamber 16, there is hydraulic jet grouting pipe 10 to be arranged on the bottom of dirt sucking tube 14, the structure of hydraulic jet grouting pipe 10 in the blowdown chamber
As shown in figure 3, the top of the dirt sucking tube 14 is fixed on upper cover 2, bottom has step to ride on dividing plate 15, the blowdown chamber with
Blowoff valve 6 is connected.
Further, wavy spring 17 is installed between soil pick-up arm in the suction nozzle 8 and dirt sucking tube 14 tight to ensure suction nozzle
The patch inwall of filter core 7.Described measurement 4 pressure reduction of water inlet 3 and delivery port of differential pressure measurement instrument 12 are simultaneously sent to control cabinet 11, described
The opening and closing of the control of sewage disposal valve 6 of control cabinet 11.
When filter works, water to be filtered is entered by water inlet, and via inner core is entered after filter element filtering, impurities in water is stayed in
On filter core inwall, inner core is connected with delivery port, and the water after filtration flows out through delivery port.When filter core inwall impurities accumulation it is excessive
Afterwards, pressure difference increase inside and outside filter screen in filter core, when the pressure difference increases to preset value, control cabinet control of sewage disposal valve is beaten
Open, the filtered water in filter core outside reversely flows through filter screen in suction nozzle, while rinsing out the impurity of filter core inwall, back flush
Sewage enter that hydraulic jet grouting pipe produces recoil strength F1 and F2, F1 and F2 constitutes couple, its moment of couple for producing via dirt sucking tube
Dirt sucking tube and suction nozzle rotation are driven, filter element cleaning is completed, pressure difference is reduced immediately, after the completion of cleaning, blowoff valve is closed, immediately water
Power churning pipe stops the rotation, and completes a cleaning frequency.
Technical scheme and embodiment cited by the present invention and non-limiting, with the technical scheme cited by the present invention and
Embodiment is equal to or effect same approach is all in the range of the present invention is protected.
Claims (6)
1. a kind of Full-automatic self-cleaning filter of hydro powered, it is characterised in that：Including filter body（1）, filter sheet
Body（1）By the upper cover at end mounted thereto（2）With the low head installed in its lower end（13）Coordinate filter body（1）
Bore seal into sealed chamber, dividing plate is fixed with sealed chamber（15）, dividing plate（15）By sealed chamber be divided into mutually every
Overanxious chamber absolutely and blowdown chamber（6）, inner core is installed in overanxious chamber（5）, inner core（5）Filter chamber is divided into into interior tube inner chamber and interior
Cylinder exocoel two parts, on interior tube inner chamber delivery port is communicated with（4）, on inner core exocoel water inlet is connected with（3）, inner core（5）On open
The through hole for connecting interior tube inner chamber and inner core exocoel is provided with, filter core is installed in interior tube inner chamber（7）, filter core（7）By in inner core
Chamber is divided into filter core inner chamber and filter core exocoel, through hole and filter core inner space, delivery port（4）Connect with filter core exocoel, water inlet
Into water by inner core exocoel enter filter core inner chamber after Jing filtration cores（7）Filtration, then enter delivery port from filter core exocoel
（4）Discharge, dirt sucking tube is installed in filter core inner chamber（14）, dirt sucking tube（14）Including the supervisor being interconnected and some arms,
Suction nozzle is provided with pipe（8）, suction nozzle（8）It is sticked in filter core（7）On inwall, one end of supervisor seals and is rotatably installed in upper cover
（2）On, the other end of supervisor is rotatably arranged on dividing plate（15）The upper and end passes through dividing plate（15）Stretch into blowdown chamber（16）It is interior, supervisor
Into blowdown chamber（16）One end on hydraulic jet grouting pipe is installed（10）, hydraulic jet grouting pipe（10）Including at least one both ends open
Z-type pipe, Z-type pipe is vertical with the rotating shaft of blow-off pipe and Z-type pipe and blow-off pipe are interconnected in order to by the sewage in blow-off pipe
Enter blowdown chamber（16）In, the reverse moment of couple that the water discharged by Z-type pipe is produced drives dirt sucking tube（14）Rotate to control to inhale
Mouth（8）Cleaning filter core（7）.
2. the Full-automatic self-cleaning filter of a kind of hydro powered according to claim 1, it is characterised in that：Described suction
Mouth（8）Total length be more than filter core（7）Length, two neighboring suction nozzle（8）Projection section on supervisor is overlapped.
3. the Full-automatic self-cleaning filter of a kind of hydro powered according to claim 1, it is characterised in that：Described suction
Mouth（8）By wavy spring（17）Elastic acting force be adjacent in filter core（7）On inwall.
4. the Full-automatic self-cleaning filter of a kind of hydro powered according to claim 1, it is characterised in that：Described row
Dirty chamber（16）On blowoff valve is installed（6）, filter body（1）On be provided with control cabinet（11）With differential pressure measurement instrument（12）,
By differential pressure measurement instrument（12）Pressure difference between measurement water inlet and delivery port, and measured value is sent to into the control cabinet
（11）, and by control cabinet（11）Control of sewage disposal valve（6）Opening and closing.
5. the Full-automatic self-cleaning filter of a kind of hydro powered according to claim 1, it is characterised in that：Described enters
The mouth of a river（3）And delivery port（4）Center line overlap.
6. the Full-automatic self-cleaning filter of a kind of hydro powered according to claim 1, it is characterised in that：Described is upper
End socket（2）On air bleeding valve is installed（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044260.4A CN106582089A (en) | 2016-11-24 | 2016-11-24 | Hydraulic driven automatic self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044260.4A CN106582089A (en) | 2016-11-24 | 2016-11-24 | Hydraulic driven automatic self-cleaning filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106582089A true CN106582089A (en) | 2017-04-26 |
Family
ID=58592983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611044260.4A Pending CN106582089A (en) | 2016-11-24 | 2016-11-24 | Hydraulic driven automatic self-cleaning filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106582089A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108159759A (en) * | 2018-02-02 | 2018-06-15 | 宁波沸柴机器人科技有限公司 | A kind of energy-saving sewage processing equipment |
| CN110694335A (en) * | 2019-10-12 | 2020-01-17 | 徐亮 | Filter basket extraction type reverse Y-shaped filter |
| CN111565813A (en) * | 2017-12-05 | 2020-08-21 | Hydac处理技术有限公司 | Filter device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH022811A (en) * | 1987-11-25 | 1990-01-08 | Combustion Eng Europ | Self-purifying filter |
| KR100538306B1 (en) * | 2004-09-30 | 2005-12-23 | 김성철 | Self-cleaning filtering system |
| CN201565186U (en) * | 2009-10-21 | 2010-09-01 | 石河子市金土地节水设备有限公司 | Automatic cleaning screen filter |
| CN103055571A (en) * | 2013-01-06 | 2013-04-24 | 苏九逵 | Self-driven sewage cleaning water filter |
| CN203954812U (en) * | 2014-05-29 | 2014-11-26 | 新疆水利水电科学研究院 | Rotary wind type hydro powered twin-stage automatic cleaning screen filter |
| CN204456296U (en) * | 2014-12-25 | 2015-07-08 | 江苏水智乐自动化设备有限公司 | A kind of Novel water tank with water purifying and disinfection function |
| CN204522439U (en) * | 2015-03-09 | 2015-08-05 | 李睦邻 | Vertical dirt remover |
| CN105797455A (en) * | 2015-12-16 | 2016-07-27 | 乌鲁木齐天工兴水环保科技有限公司 | Screen filter capable of recycling pollution discharge water and achieving automatic cleaning |
-
2016
- 2016-11-24 CN CN201611044260.4A patent/CN106582089A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH022811A (en) * | 1987-11-25 | 1990-01-08 | Combustion Eng Europ | Self-purifying filter |
| KR100538306B1 (en) * | 2004-09-30 | 2005-12-23 | 김성철 | Self-cleaning filtering system |
| CN201565186U (en) * | 2009-10-21 | 2010-09-01 | 石河子市金土地节水设备有限公司 | Automatic cleaning screen filter |
| CN103055571A (en) * | 2013-01-06 | 2013-04-24 | 苏九逵 | Self-driven sewage cleaning water filter |
| CN203954812U (en) * | 2014-05-29 | 2014-11-26 | 新疆水利水电科学研究院 | Rotary wind type hydro powered twin-stage automatic cleaning screen filter |
| CN204456296U (en) * | 2014-12-25 | 2015-07-08 | 江苏水智乐自动化设备有限公司 | A kind of Novel water tank with water purifying and disinfection function |
| CN204522439U (en) * | 2015-03-09 | 2015-08-05 | 李睦邻 | Vertical dirt remover |
| CN105797455A (en) * | 2015-12-16 | 2016-07-27 | 乌鲁木齐天工兴水环保科技有限公司 | Screen filter capable of recycling pollution discharge water and achieving automatic cleaning |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111565813A (en) * | 2017-12-05 | 2020-08-21 | Hydac处理技术有限公司 | Filter device |
| CN111565813B (en) * | 2017-12-05 | 2022-06-14 | Hydac处理技术有限公司 | Filter device |
| CN108159759A (en) * | 2018-02-02 | 2018-06-15 | 宁波沸柴机器人科技有限公司 | A kind of energy-saving sewage processing equipment |
| CN110694335A (en) * | 2019-10-12 | 2020-01-17 | 徐亮 | Filter basket extraction type reverse Y-shaped filter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |