CN112569657A - Water environmental protection is with preventing blockking up formula filter equipment - Google Patents
Water environmental protection is with preventing blockking up formula filter equipment Download PDFInfo
- Publication number
- CN112569657A CN112569657A CN202011337030.3A CN202011337030A CN112569657A CN 112569657 A CN112569657 A CN 112569657A CN 202011337030 A CN202011337030 A CN 202011337030A CN 112569657 A CN112569657 A CN 112569657A
- Authority
- CN
- China
- Prior art keywords
- water
- filtering
- water spraying
- piston
- environmental protection
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 230000007613 environmental effect Effects 0.000 title claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 62
- 239000012535 impurity Substances 0.000 claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 26
- 239000011148 porous material Substances 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims description 54
- 238000005192 partition Methods 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- B01D29/01—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 flat filtering elements
-
- 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
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/081—Regeneration of the filter using nozzles or suction devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/081—Regeneration of the filter using nozzles or suction devices
- B01D2201/084—Nozzles placed on the filtrate side of the filtering element
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses an anti-blocking type filtering device for water environmental protection, and belongs to the technical field of water environmental protection filtering. The utility model provides a water environmental protection is with preventing blockking up formula filter equipment, which comprises an outer shell body, the filter house, the drive division, water spray structure and buffer portion, the filter house includes sliding connection in the baffle of shell body inner wall, set up in a plurality of first filtration pores of baffle upper surface and set up the multiunit rivers passageway in the baffle upper surface, first filtration pore is arranged in filtering the granule impurity that contains in the rivers, multiunit rivers passageway and a plurality of first filtration pore one-to-one respectively, and rivers passageway is located the outside near first filtration pore edge, the quantity of buffer portion is at least two, the buffer portion sets firmly in the inside wall of shell body, and the buffer portion is located the downside of baffle, can spout to rivers passageway after collecting the water portion after will filtering through the water spray rivers passageway, so that will block up behind rivers blowout rivers passageway impurity ejecting in first filtration pore, make impurity be difficult for blockking up first filtration pore.
Description
Technical Field
The invention relates to the technical field of water environment-friendly filtration, in particular to an anti-blocking type filtering device for water environment protection.
Background
In the occasions of large flow water in life and industry, the water is directly discharged after use because of impurities in the water and is not recycled. In order to meet the concept of saving and environmental protection, the discharged water is usually treated in a filtering mode to remove solid particle impurities contained in the water body, so that the water is recycled.
The filter screen is usually used for filtering during filtering, but in the use process, the filter screen holes are easily blocked by particle impurities, so that the water treatment effect is low, impurities blocked in the filter screen can be flushed out through a back flushing mode in some occasions, the water treatment efficiency can be improved through the mode, however, the water discharge is usually stopped firstly in the treatment process, the impurities to be blocked are cleaned out and then the water discharge is continued, the mode is troublesome to operate, the water discharge operation needs to be carried out for multiple times, and the water treatment efficiency is influenced.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide an anti-blocking type filtering device for water environmental protection, which can collect the filtered water part through a water spraying structure and spray the collected water part to a water flow channel, so that impurities blocked in a first filtering hole are ejected out after the water flow is sprayed out of the water flow channel, and the first filtering hole is not easily blocked by the impurities.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An anti-blocking type filtering device for water environmental protection comprises an outer shell, a filtering part, a driving part, a water spraying structure and a buffering part;
the filtering part comprises a partition board connected with the inner wall of the outer shell in a sliding way, a plurality of first filtering holes formed in the upper surface of the partition board and a plurality of groups of water flow channels formed in the upper surface of the partition board;
the first filtering holes are used for filtering particle impurities contained in the water flow; the water flow channels correspond to the first filter holes one by one, and the water flow channels are positioned on the outer side close to the edges of the first filter holes;
the number of the buffer parts is at least two, the buffer parts are fixedly arranged on the inner side wall of the outer shell, and the buffer parts are positioned on the lower side of the partition plate;
the number of the water spraying structures is multiple, and the water spraying structures are positioned below the water flow channel and correspond to the water flow channel; the water spraying structure is used for storing part of water filtered by the partition plate and then spraying the part of the water to the water flow channel so as to flush out particle impurities which are easy to block in the first filter hole through the water flow channel;
the driving part is arranged between the bottom end in the outer shell and the plurality of water spraying structures; the driving part is used for providing power for spraying water stored in the water spraying structure, and the driving part synchronously drives the partition plate to slide up and down in the outer shell to impact the buffer part when providing power for the water spraying structure, so that particle impurities are not easy to block in the first filter hole.
Further, the water flow channel comprises at least one second filter hole, and the aperture of the second filter hole is smaller than that of the first filter hole.
Further, the water spray structure comprises a water storage part, a connecting pipe, a piston rod and a water spray pipe, wherein the upper end of the water storage part is provided with a mesh, the upper left end of the connecting pipe is fixedly arranged at the lower end of the water storage part, the number of the water spray pipes is matched with the number of the second filtering holes, the central axis of the water spray pipe is collinear with the central axis of the second filtering holes, the water spray pipe is fixedly arranged at the upper end of the connecting pipe far away from the water storage part, the piston is connected inside the lower end of the connecting pipe in a sliding manner, a dynamic seal is arranged between the piston and the connecting pipe, the piston rod is fixedly arranged at the lower end of the piston, one end of the piston rod far away from the piston penetrates through the lower end of the connecting pipe and extends out of the connecting pipe, the water storage part, the connecting pipe is communicated with the water spray pipe, the upper end opening of the, flows out from the upper end opening far away from the water storage part.
Furthermore, the driving part comprises a push rod motor fixedly arranged at the inner bottom end of the outer shell, a connecting part fixedly arranged at the output end of the push rod motor and a pull rope fixedly arranged at the upper end of the connecting part, the connecting part is connected between one ends of the piston rods which are close to each other, and one end of the pull rope, far away from the connecting part, is fixed with the lower end face of the partition plate.
Furthermore, the buffer part comprises a fixing part fixedly arranged on the inner wall of the outer shell and a compression spring fixedly arranged on the upper end face of the fixing part, and the upper end face of the compression spring is in contact with the lower end face of the partition plate.
Further, under the water spraying state of the water spraying structure, the compression spring is in a freely telescopic state; the water spraying structure is in a non-water spraying state, and the compression spring is in a compression state.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can be through water spray structure with the water portion after filtering after collecting spout to rivers passageway to make behind the rivers spout rivers passageway will block up the impurity in first filtration pore ejecting, make impurity be difficult for blockking up first filtration pore.
(2) The water flow sprayed by the water spraying structure is opposite to the flowing direction of the filtered discharged water, and the filtering operation of the discharged water in the water spraying process of the water spraying structure is not stopped, so that the filtering efficiency is improved.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a perspective view of a filter portion according to the present invention;
FIG. 3 is a schematic structural view of the water flow direction when the water spraying structure sprays water according to the present invention;
FIG. 4 is a perspective view of a connecting portion according to the present invention;
fig. 5 is a schematic structural view of the piston of the present invention moving downward.
The reference numbers in the figures illustrate:
the filter comprises an outer shell 1, a partition 2, a first filter hole 21, a second filter hole 22, a push rod motor 31, a connecting part 32, a pull rope 33, a water spraying structure 4, a water storage part 41, a connecting pipe 42, a piston 43, a piston rod 44, a water spraying pipe 45, a fixing part 51 and a compression spring 52.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
Referring to fig. 1-5, an anti-clogging filter device for water environmental protection comprises an outer casing 1, a filter portion, a driving portion, a water spraying structure 4 and a buffering portion.
The filter part comprises a partition plate 2 connected with the inner wall of the outer shell 1 in a sliding manner, a plurality of first filter holes 21 arranged on the upper surface of the partition plate 2 and a plurality of groups of water flow channels arranged on the upper surface of the partition plate 2.
The first filtering holes 21 are used for filtering particle impurities contained in the water flow; multiunit rivers passageway and a plurality of first filtration pore 21 one-to-one respectively, and rivers passageway is located the outside near first filtration pore 21 edge, and rivers passageway includes at least one second filtration pore 22, and the aperture of second filtration pore 22 is less than the aperture of first filtration pore 21, makes the impurity of spouting to the jam in first filtration pore 21 that can be comparatively concentrated from the internal blowout rivers of water spray structure 4, and water velocity is great, can be better wash out first filtration pore 21 with granule impurity outside.
The quantity of buffer portion is at least two, and buffer portion sets firmly in the inside wall of shell body 1, and buffer portion is located the downside of baffle 2, and buffer portion is including setting firmly fixed part 51 in shell body 1 inner wall and setting firmly in the compression spring 52 of fixed part 51 up end, and compression spring 52 up end contacts with baffle 2 lower terminal surface.
In the water spraying state of the water spraying structure 4, the compression spring 52 is in a freely telescopic state; the water spray structure 4 is in a non-water spray state, and the compression spring 52 is in a compressed state.
The number of the water spraying structures 4 is multiple, and the water spraying structures 4 are positioned below the water flow channel and correspond to the water flow channel; the water spraying structure 4 is used for storing part of the water filtered by the partition board 2 and spraying the part of the water to the water flow channel so as to flush out the particle impurities which are easy to block in the first filtering holes 21 through the water flow channel.
The water spraying structure 4 comprises a water storage part 41, a connecting pipe 42, a piston 43, a piston rod 44 and a water spraying pipe 45, wherein the upper end of the water storage part 41 is provided with meshes, the aperture of the meshes is smaller than that of the second filtering holes 22, so that small particle impurities contained in water flow entering the water storage part 41 are intercepted outside the water storage part 41, the left upper end of the connecting pipe 42 is fixedly arranged at the lower end of the water storage part 41, the number of the water spraying pipes 45 is matched with that of the second filtering holes 22, the central axis of the water spraying pipe 45 is collinear with that of the second filtering holes 22, the water spraying pipe 45 is fixedly arranged at the upper end of the connecting pipe 42 far away from the water storage part 41, the piston 43 is slidably connected inside the lower end of the connecting pipe 42, a dynamic seal is arranged between the piston 43 and the connecting pipe 42, the piston rod 44 is fixedly arranged at the lower end of the piston 43, one, The connecting pipe 42 is communicated with the water spraying pipe 45, the upper opening of the connecting pipe 42 close to the water storage part 41 and the upper opening far away from the water storage part 41 are both provided with one-way valves, and water can flow into the one-way valves from the upper opening of the connecting pipe 42 close to the water storage part 41 and flow out from the upper opening far away from the water storage part 41.
The driving part is arranged between the bottom end in the outer shell 1 and the plurality of water spraying structures 4; the driving part is used for providing power for spraying water stored in the water spraying structure 4, and the driving part synchronously drives the partition plate 2 to slide up and down in the outer shell 1 to impact the buffer part when providing power for the water spraying structure 4, so that particle impurities are not easy to block in the first filter hole 21.
The driving part comprises a push rod motor 31 fixedly arranged at the bottom end in the outer shell 1, a connecting part 32 fixedly arranged at the output end of the push rod motor 31 and a pull rope 33 fixedly arranged at the upper end of the connecting part 32, the connecting part 32 is connected between the ends of a plurality of piston rods 44 which are close to each other, one end of the pull rope 33 far away from the connecting part 32 is fixed with the lower end surface of the partition board 2, when the push rod motor 31 starts the extension of the driving output end, the connecting part 32 is driven to move upwards, so that the connecting part 32 drives the piston rods 44 and the piston 43 to move upwards, the piston 43 guides the water flow stored in the water storage part 41 and the connecting pipe 42 into the water spray pipe 45 through the upper end opening of the connecting pipe 42 far away from the water storage part 41, and then the water flow is sprayed into the second filter hole 22 through the water spray pipe 45, when the push rod motor 31 starts, the natural inflow speed of the water flow is relatively slow.
When the diameter of the particle impurities is slightly larger than the aperture of the first filtering hole 21, the particle impurities are trapped on the upper surface of the partition plate 2, when the diameter of the particle impurities is slightly larger than the aperture of the first filtering hole 21, the particle impurities can be partially clamped into the first filtering hole 21, in this case, (the time for controlling the output end of the push rod motor 31 to extend and retract is preset, the extending and retracting time is equal, when the retracting time reaches the limited time, the piston 43 just moves to the bottom of the connecting pipe 42) to control the push rod motor 31 to start, the push rod motor 31 drives the output end to retract to drive the connecting part 32 and the piston 43 to move downwards, the piston 43 slowly pumps the water into the water storage part 41, when the push rod motor 31 reaches the limited time for retracting the output end, the push rod motor 31 further drives the output end to extend to drive the piston 43 to move upwards, and guides the water pumped into the water storage part 41 and the connecting pipe 42 to the water spray pipe, when rivers upwards spout from second filtration pore 22, will block up the marginal part jack-up of the granule impurity in first filtration pore 21 to make granule impurity break away from first filtration pore 21, can spout to rivers passageway after collecting the water part after will filtering through water spray structure 4, so that will block up the impurity ejecting in first filtration pore 21 behind the rivers blowout rivers passageway, make impurity be difficult for blockking up first filtration pore 21.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a water environmental protection is with preventing blockking up formula filter equipment which characterized in that: comprises an outer shell (1), a filtering part, a driving part, a water spraying structure (4) and a buffering part;
the filtering part comprises a partition plate (2) connected to the inner wall of the outer shell (1) in a sliding manner, a plurality of first filtering holes (21) formed in the upper surface of the partition plate (2), and a plurality of groups of water flow channels formed in the upper surface of the partition plate (2);
the first filtering hole (21) is used for filtering particle impurities contained in the water flow; the water flow channels correspond to the first filter holes (21) one by one, and the water flow channels are positioned on the outer side close to the edges of the first filter holes (21);
the number of the buffer parts is at least two, the buffer parts are fixedly arranged on the inner side wall of the outer shell (1), and the buffer parts are positioned on the lower side of the partition plate (2);
the number of the water spraying structures (4) is multiple, and the water spraying structures (4) are positioned below the water flow channel and correspond to the water flow channel; the water spraying structure (4) is used for storing part of water filtered by the partition plate (2) and spraying the part of water to the water flow channel so as to flush out particle impurities which are easy to block in the first filtering holes (21) through the water flow channel;
the driving part is arranged between the inner bottom end of the outer shell (1) and the plurality of water spraying structures (4); the driving part is used for providing power for spraying water stored in the water spraying structure (4), and the driving part synchronously drives the partition plate (2) to slide up and down in the outer shell (1) to impact the buffer part when providing power for the water spraying structure (4), so that particle impurities are not easy to block in the first filter hole (21).
2. The anti-clogging filter device for water environmental protection according to claim 1, wherein: the water flow channel comprises at least one second filter hole (22), and the pore diameter of the second filter hole (22) is smaller than that of the first filter hole (21).
3. The anti-clogging filter device for water environmental protection according to claim 2, wherein: the water spraying structure (4) comprises a water storage part (41), a connecting pipe (42), a piston (43), a piston rod (44) and a water spraying pipe (45), wherein meshes are arranged at the upper end of the water storage part (41), the left upper end of the connecting pipe (42) is fixedly arranged at the lower end of the water storage part (41), the number of the water spraying pipes (45) is matched with the number of the second filtering holes (22), the central axis of the water spraying pipe (45) is collinear with the central axis of the second filtering holes (22), the water spraying pipe (45) is fixedly arranged at the upper end, far away from the water storage part (41), of the connecting pipe (42), the piston (43) is slidably connected inside the lower end of the connecting pipe (42), a dynamic seal is arranged between the piston (43) and the connecting pipe (42), the piston rod (44) is fixedly arranged at the lower end of the piston (43), one end, far away from the piston (43), of the piston rod (44) penetrates through the lower end, water storage portion (41), connecting pipe (42) and spray pipe (45) homogeneous phase intercommunication, connecting pipe (42) are close to the upper end opening part of water storage portion (41) and the upper end opening part of keeping away from water storage portion (41) all are equipped with the check valve, the upper end opening that the check valve can supply rivers from connecting pipe (42) to be close to water storage portion (41) gets into, flows from the upper end opening of keeping away from water storage portion (41).
4. A water environmental anti-clogging filter device according to claim 3, wherein: the drive division sets firmly in push rod motor (31) of bottom in shell body (1), sets firmly in connecting portion (32) of push rod motor (31) output and sets firmly stay cord (33) in connecting portion (32) upper end, connecting portion (32) are connected between the one end that a plurality of piston rods (44) are close to each other, the terminal surface is fixed mutually under one end and baffle (2) that connecting portion (32) were kept away from in stay cord (33).
5. The anti-clogging filter device for water environmental protection according to claim 1, wherein: the buffer part comprises a fixing part (51) fixedly arranged on the inner wall of the outer shell (1) and a compression spring (52) fixedly arranged on the upper end face of the fixing part (51), and the upper end face of the compression spring (52) is in contact with the lower end face of the partition plate (2).
6. The anti-clogging filter device for water environmental protection according to claim 5, wherein: the compression spring (52) is in a freely telescopic state when the water spraying structure (4) sprays water; the water spraying structure (4) is in a non-water spraying state, and the compression spring (52) is in a compression state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011337030.3A CN112569657A (en) | 2020-11-25 | 2020-11-25 | Water environmental protection is with preventing blockking up formula filter equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011337030.3A CN112569657A (en) | 2020-11-25 | 2020-11-25 | Water environmental protection is with preventing blockking up formula filter equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112569657A true CN112569657A (en) | 2021-03-30 |
Family
ID=75123385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011337030.3A Pending CN112569657A (en) | 2020-11-25 | 2020-11-25 | Water environmental protection is with preventing blockking up formula filter equipment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112569657A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106040581A (en) * | 2016-08-01 | 2016-10-26 | 龙江汇 | Efficient sand vibration screening device |
CN106984082A (en) * | 2017-06-06 | 2017-07-28 | 安徽鹰龙工业设计有限公司 | A kind of industrial chemicals filter for clearing up filter |
CN107362596A (en) * | 2017-07-20 | 2017-11-21 | 盐城文治机械有限公司 | A kind of sewage purification pretreatment unit |
CN210964112U (en) * | 2019-08-20 | 2020-07-10 | 青岛新世纪环境工程有限公司 | Sewage solid-liquid separation processing system |
CN211752945U (en) * | 2019-12-20 | 2020-10-27 | 孝感市三洋塑胶科技有限责任公司 | Sewage treatment device for plastic pipe refining |
-
2020
- 2020-11-25 CN CN202011337030.3A patent/CN112569657A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106040581A (en) * | 2016-08-01 | 2016-10-26 | 龙江汇 | Efficient sand vibration screening device |
CN106984082A (en) * | 2017-06-06 | 2017-07-28 | 安徽鹰龙工业设计有限公司 | A kind of industrial chemicals filter for clearing up filter |
CN107362596A (en) * | 2017-07-20 | 2017-11-21 | 盐城文治机械有限公司 | A kind of sewage purification pretreatment unit |
CN210964112U (en) * | 2019-08-20 | 2020-07-10 | 青岛新世纪环境工程有限公司 | Sewage solid-liquid separation processing system |
CN211752945U (en) * | 2019-12-20 | 2020-10-27 | 孝感市三洋塑胶科技有限责任公司 | Sewage treatment device for plastic pipe refining |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN212757552U (en) | Construction sewage filter equipment | |
CN116181227B (en) | High-pressure grouting drill rod device | |
CN112569657A (en) | Water environmental protection is with preventing blockking up formula filter equipment | |
CN218667449U (en) | Gate water purification device | |
CN214118589U (en) | Water pressure controller | |
CN110577296B (en) | Water purifier by membrane filtration method | |
CN203755208U (en) | Road washing and sweeping truck with sewage recycling use function | |
CN221195531U (en) | Energy-saving mute fire pump | |
CN111006423A (en) | Convenient abluent refrigeration reservoir | |
CN221096989U (en) | Anti-blocking damping sewage pump | |
CN217926482U (en) | Water pump with prevent blockking up structure | |
CN220225678U (en) | Water conservancy drainage device | |
CN213103578U (en) | Drainage device of ultrasonic roller washing machine | |
CN220802071U (en) | High-efficiency flushing device | |
CN220633324U (en) | Environment-friendly sewage treatment device | |
CN217421261U (en) | Dust collector is used in mining industry production convenient to remove | |
CN111395503B (en) | Self-blockage-cleaning type floor drain pipe | |
CN212854793U (en) | Ball type self-cleaning filter | |
CN210786439U (en) | Filter for sewage treatment | |
CN216677155U (en) | Renewable filter element | |
CN212575720U (en) | Hydraulic engineering filter equipment | |
CN216170371U (en) | Polyvinyl acetate emulsion filter equipment | |
CN113731005B (en) | Back flush filtration structure before pump | |
CN114134976B (en) | Overflow type drainage structure | |
CN221218669U (en) | Water delivery device for hydraulic engineering |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |