CN114073870A - Filter capable of being cleaned reversely - Google Patents
Filter capable of being cleaned reversely Download PDFInfo
- Publication number
- CN114073870A CN114073870A CN202111501907.2A CN202111501907A CN114073870A CN 114073870 A CN114073870 A CN 114073870A CN 202111501907 A CN202111501907 A CN 202111501907A CN 114073870 A CN114073870 A CN 114073870A
- Authority
- CN
- China
- Prior art keywords
- barrel body
- valve
- pipe
- filtering
- pipeline
- 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 claims abstract description 69
- 238000004140 cleaning Methods 0.000 claims abstract description 48
- 238000001914 filtration Methods 0.000 claims abstract description 44
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 239000008213 purified water Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 4
- 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- B01D29/62—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
- B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
-
- 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
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a filter capable of being reversely cleaned, which comprises a barrel body, and a filtering assembly and a cleaning assembly which are arranged in the barrel body, wherein a rotating motor is arranged at the bottom of the barrel body, a transmission shaft is arranged at the output end of the rotating motor and is connected with the bottom of a cleaning framework through the transmission shaft, and the cleaning framework and a brush can be driven by the rotating motor and the transmission shaft to rotate and clean a filtering medium; the water inlet pipeline and the water outlet pipeline are arranged on one side of the barrel body, the sewage discharge pipeline is arranged at the bottom of the barrel body, the vent pipeline is arranged at the top of the barrel body, and the exhaust pipeline is arranged on the other side of the barrel body. This application accomplishes medial surface and the inside washing to filter media through adopting the vent line who is used for leading-in high-pressure gas, and the cooperation is used for the abluent brush of lateral surface to filter media, realizes under the prerequisite of not dismantling the filter, accomplishes the washing to filter media inside the filter.
Description
Technical Field
The invention relates to the field of filters, in particular to a filter capable of being cleaned reversely.
Background
The filter is an indispensable device on a medium conveying pipeline and is usually arranged at the inlet end of a pressure reducing valve, a pressure relief valve, a constant water level valve or other equipment. The filter consists of a cylinder body, a stainless steel filter screen, a pollution discharge part, a transmission device and an electric control part. After water to be treated passes through the filter cartridge of the filter screen, impurities are blocked, when the water needs to be cleaned, the detachable filter cartridge needs to be taken out, and the water is reloaded after treatment, so that the water is inconvenient to maintain.
Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.
Disclosure of Invention
The invention aims to provide a filter capable of being cleaned reversely, which is characterized in that the inner side surface and the interior of a filter medium are cleaned by adopting a vent pipeline for introducing high-pressure gas, and the cleaning of the filter medium in the filter is completed on the premise of not disassembling the filter by matching with a brush for cleaning the outer side surface of the filter medium, so that the problems in the prior art are solved.
The technical purpose of the invention is realized by the following technical scheme:
a filter capable of being cleaned reversely comprises a barrel body 1, wherein an upper cover 2 is arranged at the top of the barrel body 1, and a lower cover 3 is arranged at the bottom of the barrel body 1;
the inner side wall of the barrel body 1 is provided with a partition plate 4, a limiting structure is arranged at the inner edge of the partition plate 4, a filtering assembly is arranged at the limiting structure and comprises a filtering framework 5 and a filtering medium 6, the filtering framework 5 is arranged at the limiting structure of the partition plate 4 and is fixed through a pressing plate 18 above the filtering framework, and the filtering medium 6 is arranged on the filtering framework 5 and is used for filtering raw water;
the cleaning assembly is arranged on the outer side of the filtering assembly and comprises a cleaning framework 7, the cleaning framework 7 is provided with an open cavity structure, the filtering framework 5 and the filtering medium 6 are coated in the open cavity structure, a plurality of hairbrushes 8 are arranged on the inner side wall of the cleaning framework 7, a rotating motor 9 is arranged at the bottom of the barrel body 1, a transmission shaft is arranged at the output end of the rotating motor 9 and is connected with the bottom of the cleaning framework 7 through the transmission shaft, and the cleaning framework 7 and the hairbrushes 8 can be driven by the rotating motor 9 and the transmission shaft to rotate and complete cleaning of the filtering medium 6;
a water inlet pipeline and a water outlet pipeline are arranged on one side of the barrel body 1, the water inlet pipeline comprises a water inlet pipe arranged on the barrel body 1, an inlet valve 10 is arranged on the water inlet pipe, one end of the water inlet pipe is an inlet, the other end of the water inlet pipe is communicated with the interior of the barrel body 1, a flow channel is arranged in the barrel body 1, and the introduced raw water flows through a filter medium 6 through the flow channel and flows out through the water outlet pipeline; the water outlet pipeline comprises a water outlet pipe arranged on the barrel body 1, an outlet valve 11 is arranged on the water outlet pipe, one end of the water outlet pipe is an inlet, and the other end of the water outlet pipe is communicated with the interior of the barrel body 1;
a sewage discharge pipeline is arranged at the bottom of the barrel body 1, a ventilation pipeline is arranged at the top of the barrel body 1, and an exhaust pipeline is arranged at the other side of the barrel body 1; the sewage discharge pipeline comprises a sewage discharge valve 19 communicated with the bottom of the barrel body 1 and a sewage discharge valve 19 arranged on the sewage discharge pipe; the ventilation pipeline comprises a ventilation pipe 12 arranged on the upper cover 2 of the barrel body 1, one end of the ventilation pipe 12 is an air inlet, a ventilation valve 13 is arranged at the air inlet, the main body of the ventilation pipe 12 extends into the filtering framework 5, and a gas flow channel is arranged inside the ventilation pipe 12; the exhaust pipeline comprises an exhaust pipe 14, one end of the exhaust pipe 14 is communicated with the inside of the barrel body 1, the other end of the exhaust pipe 14 is communicated with a sewage discharge pipe, and an exhaust valve 15 is arranged on the exhaust pipe 13.
Furthermore, a bearing hole is formed in the lower cover 3, a bearing 16 is arranged at one end in the bearing hole, a mechanical shaft seal 17 is arranged at the other end in the bearing hole, and the output end of the rotating motor 9 sequentially penetrates through the bearing 16 and the mechanical shaft seal 17 and then is connected with the bottom of the cleaning framework 7.
Further, the operation of the filter capable of being cleaned reversely is as follows:
firstly, opening the inlet valve 10 and the exhaust valve 15, and closing the outlet valve 11, the vent valve 13 and the drain valve 19; raw water to be filtered is injected into the barrel body 1 through the water inlet pipeline, air in the barrel body 1 is gradually discharged through the exhaust valve 15, the raw water in the barrel body 1 can flow through the flow channel arranged in the barrel body 1 and filter impurities contained in the raw water through the filter medium 6, then the outlet valve 11 is opened, and the filtered purified water flows out through the water outlet pipeline;
after the filtering process is finished, entering a cleaning process, wherein in the cleaning process, firstly closing the inlet valve 10, the outlet valve 11 and the blowdown valve 19, and opening the vent valve 13 and the exhaust valve 15; a high-pressure gas source is connected to an air inlet of the vent pipe 12, then the rotating motor 9 is started, the rotating motor 9 drives the cleaning framework 7 and the brush 8 to rotate, the high-pressure gas introduced by the high-pressure gas source is used for cleaning the inner side surface of the filter medium 6, and the brush 8 is used for cleaning the outer side surface of the filter medium 6;
after the cleaning process is finished, entering a sewage disposal flow, and in the sewage disposal flow, firstly opening the vent valve 13, and closing the inlet valve 10, the outlet valve 11, the exhaust valve 15 and the sewage disposal valve 19; high-pressure gas is introduced through an external high-pressure gas source, after the pressure in the barrel 1 reaches a specified value, the blow-down valve 19 is opened, high-pressure airflow generated by the high-pressure gas passes through the filter medium 6, impurities in the filter medium 6 are flushed out, and the impurities are discharged through the blow-down valve 19.
In conclusion, the invention has the following beneficial effects:
the inner side face and the interior of the filter medium are cleaned by adopting the vent pipeline for leading high-pressure gas, and the cleaning of the filter medium in the filter is completed on the premise of not disassembling the filter by matching with the hairbrush for cleaning the outer side face of the filter medium.
Drawings
FIG. 1 is a schematic view of a back-cleanable filter according to the present invention.
Figure 2 is a schematic diagram of the filtration stage of the present invention.
Figure 3 is a schematic illustration of the cleaning stage according to the invention.
Fig. 4 is a schematic illustration of the blowdown phase of the present invention.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.
As shown in fig. 1, the filter capable of being reversely cleaned according to the present invention includes a barrel 1, an upper cover 2 is disposed on the top of the barrel 1, and a lower cover 3 is disposed on the bottom of the barrel 1;
the inner side wall of the barrel body 1 is provided with a partition plate 4, a limiting structure is arranged at the inner edge of the partition plate 4, a filtering assembly is arranged at the limiting structure and comprises a filtering framework 5 and a filtering medium 6, the filtering framework 5 is arranged at the limiting structure of the partition plate 4 and is fixed through a pressing plate 18 above the filtering framework, and the filtering medium 6 is arranged on the filtering framework 5 and is used for filtering raw water;
the cleaning assembly is arranged on the outer side of the filtering assembly and comprises a cleaning framework 7, the cleaning framework 7 is provided with an open cavity structure, the filtering framework 5 and the filtering medium 6 are coated in the open cavity structure, a plurality of hairbrushes 8 are arranged on the inner side wall of the cleaning framework 7, a rotating motor 9 is arranged at the bottom of the barrel body 1, a transmission shaft is arranged at the output end of the rotating motor 9 and is connected with the bottom of the cleaning framework 7 through the transmission shaft, and the cleaning framework 7 and the hairbrushes 8 can be driven by the rotating motor 9 and the transmission shaft to rotate and complete cleaning of the filtering medium 6;
a water inlet pipeline and a water outlet pipeline are arranged on one side of the barrel body 1, the water inlet pipeline comprises a water inlet pipe arranged on the barrel body 1, an inlet valve 10 is arranged on the water inlet pipe, one end of the water inlet pipe is an inlet, the other end of the water inlet pipe is communicated with the interior of the barrel body 1, a flow channel is arranged in the barrel body 1, and the introduced raw water flows through a filter medium 6 through the flow channel and flows out through the water outlet pipeline; the water outlet pipeline comprises a water outlet pipe arranged on the barrel body 1, an outlet valve 11 is arranged on the water outlet pipe, one end of the water outlet pipe is an inlet, and the other end of the water outlet pipe is communicated with the interior of the barrel body 1;
a sewage discharge pipeline is arranged at the bottom of the barrel body 1, a ventilation pipeline is arranged at the top of the barrel body 1, and an exhaust pipeline is arranged at the other side of the barrel body 1; the sewage discharge pipeline comprises a sewage discharge valve 19 communicated with the bottom of the barrel body 1 and a sewage discharge valve 19 arranged on the sewage discharge pipe; the ventilation pipeline comprises a ventilation pipe 12 arranged on the upper cover 2 of the barrel body 1, one end of the ventilation pipe 12 is an air inlet, a ventilation valve 13 is arranged at the air inlet, the main body of the ventilation pipe 12 extends into the filtering framework 5, and a gas flow channel is arranged inside the ventilation pipe 12; the exhaust pipeline comprises an exhaust pipe 14, one end of the exhaust pipe 14 is communicated with the inside of the barrel body 1, the other end of the exhaust pipe 14 is communicated with a sewage discharge pipe, and an exhaust valve 15 is arranged on the exhaust pipe 13.
The lower cover 3 is provided with a bearing hole, one end in the bearing hole is provided with a bearing 16, the other end in the bearing hole is provided with a mechanical shaft seal 17, and the output end of the rotating motor 9 sequentially penetrates through the bearing 16 and the mechanical shaft seal 17 and then is connected with the bottom of the cleaning framework 7.
The operation of the reverse cleanable filter is as follows:
referring to fig. 2, the inlet valve 10 and the exhaust valve 15 are first opened, and the outlet valve 11, the vent valve 13 and the blow-down valve 19 are closed; raw water to be filtered is injected into the barrel body 1 through the water inlet pipeline, air in the barrel body 1 is gradually discharged through the exhaust valve 15, the raw water in the barrel body 1 can flow through the flow channel arranged in the barrel body 1 and filter impurities contained in the raw water through the filter medium 6, then the outlet valve 11 is opened, and the filtered purified water flows out through the water outlet pipeline;
referring to fig. 3, after the filtering process is finished, a cleaning process is performed, in which the inlet valve 10, the outlet valve 11 and the blowdown valve 19 are closed, and the vent valve 13 and the vent valve 15 are opened; a high-pressure gas source is connected to an air inlet of the vent pipe 12, then the rotating motor 9 is started, the rotating motor 9 drives the cleaning framework 7 and the brush 8 to rotate, the high-pressure gas introduced by the high-pressure gas source is used for cleaning the inner side surface of the filter medium 6, and the brush 8 is used for cleaning the outer side surface of the filter medium 6;
referring to fig. 4, after the cleaning process is finished, a blowdown flow is started, in the blowdown flow, the vent valve 13 is opened, and the inlet valve 10, the outlet valve 11, the exhaust valve 15 and the blowdown valve 19 are closed; high-pressure gas is introduced through an external high-pressure gas source, after the pressure in the barrel 1 reaches a specified value, the blow-down valve 19 is opened, high-pressure airflow generated by the high-pressure gas passes through the filter medium 6, impurities in the filter medium 6 are flushed out, and the impurities are discharged through the blow-down valve 19.
This application accomplishes medial surface and the inside washing to filter media 6 through adopting the vent line who is used for leading-in high-pressure gas, and the cooperation is used for the abluent brush 8 of lateral surface to filter media 6, realizes under the prerequisite of not dismantling the filter, accomplishes the washing to filter media 6 inside the filter.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The filter capable of being cleaned reversely is characterized by comprising a barrel body (1), wherein an upper cover (2) is arranged at the top of the barrel body (1), and a lower cover (3) is arranged at the bottom of the barrel body (1);
the inner side wall of the barrel body (1) is provided with a partition plate (4), the inner edge of the partition plate (4) is provided with a limiting structure, a filtering assembly is arranged at the limiting structure and comprises a filtering framework (5) and a filtering medium (6), the filtering framework (5) is arranged at the limiting structure of the partition plate (4) and is fixed through a pressing plate (18) above, and the filtering medium (6) is coated on the filtering framework (5) and is used for filtering raw water;
the cleaning assembly is arranged on the outer side of the filtering assembly and comprises a cleaning framework (7), the cleaning framework (7) is provided with an open cavity structure, the filtering framework (5) and the filtering medium (6) are coated in the open cavity structure, a plurality of brushes (8) are arranged on the inner side wall of the cleaning framework (7), a rotating motor (9) is arranged at the bottom of the barrel body (1), a transmission shaft is arranged at the output end of the rotating motor (9) and is connected with the bottom of the cleaning framework (7) through the transmission shaft, the cleaning framework (7) and the brushes (8) can be driven by the rotating motor (9) and the transmission shaft to rotate, and the filtering medium (6) is cleaned;
one side of the barrel body (1) is provided with a water inlet pipeline and a water outlet pipeline, the water inlet pipeline comprises a water inlet pipe arranged on the barrel body (1), an inlet valve (10) is arranged on the water inlet pipe, one end of the water inlet pipe is an inlet, the other end of the water inlet pipe is communicated with the interior of the barrel body (1), a flow channel is arranged in the barrel body (1), and the introduced raw water flows through a filter medium (6) through the flow channel and flows out through the water outlet pipeline; the water outlet pipeline comprises a water outlet pipe arranged on the barrel body (1), an outlet valve (11) is arranged on the water outlet pipe, one end of the water outlet pipe is an inlet, and the other end of the water outlet pipe is communicated with the interior of the barrel body (1);
a sewage discharge pipeline is arranged at the bottom of the barrel body (1), a ventilation pipeline is arranged at the top of the barrel body (1), and an exhaust pipeline is arranged at the other side of the barrel body (1); the sewage discharge pipeline comprises a sewage discharge valve (19) communicated with the bottom of the barrel body (1) and a sewage discharge valve (19) arranged on the sewage discharge pipe; the ventilation pipeline comprises a ventilation pipe (12) arranged on the upper cover (2) of the barrel body (1), one end of the ventilation pipe (12) is an air inlet, a ventilation valve (13) is arranged at the air inlet, the main body of the ventilation pipe (12) extends into the filtering framework (5), and a gas flow channel is arranged inside the ventilation pipe (12); the exhaust pipeline comprises an exhaust pipe (14), one end of the exhaust pipe (14) is communicated with the inside of the barrel body (1), the other end of the exhaust pipe (14) is communicated with a sewage discharge pipe, and an exhaust valve (15) is arranged on the exhaust pipe (13).
2. The filter capable of being cleaned reversely according to claim 1, wherein the lower cover (3) is provided with a bearing hole, one end in the bearing hole is provided with a bearing (16), the other end in the bearing hole is provided with a mechanical shaft seal (17), and the output end of the rotating motor (9) passes through the bearing (16) and the mechanical shaft seal (17) in sequence and then is connected with the bottom of the cleaning framework (7).
3. A reverse cleanable filter according to claim 1, wherein the reverse cleanable filter operates as follows:
firstly, opening an inlet valve (10) and an exhaust valve (15), and closing an outlet valve (11), a ventilation valve (13) and a blowdown valve (19); raw water to be filtered is injected into the barrel body (1) through the water inlet pipeline, air in the barrel body (1) is gradually discharged through the exhaust valve (15), the raw water in the barrel body (1) can flow through the filter medium (6) through a flow channel arranged in the barrel body (1) to filter impurities, then the outlet valve (11) is opened, and the filtered purified water flows out through the water outlet pipeline;
after the filtering process is finished, entering a cleaning process, wherein in the cleaning process, firstly closing the inlet valve (10), the outlet valve (11) and the blowdown valve (19), and opening the vent valve (13) and the exhaust valve (15); a high-pressure gas source is connected to the gas inlet of the vent pipe (12), then the rotating motor (9) is started, the rotating motor (9) drives the cleaning framework (7) and the brush (8) to rotate, the high-pressure gas introduced by the high-pressure gas source is used for cleaning the inner side surface of the filter medium (6), and the brush (8) is used for cleaning the outer side surface of the filter medium (6);
after the cleaning process is finished, entering a sewage disposal flow, wherein in the sewage disposal flow, firstly opening a vent valve (13), and closing an inlet valve (10), an outlet valve (11), an exhaust valve (15) and a sewage disposal valve (19); high-pressure gas is led in through an external high-pressure gas source, after the pressure in the barrel (1) reaches a specified value, the blow-down valve (19) is opened, high-pressure airflow generated by the high-pressure gas passes through the filter medium (6), impurities in the filter medium (6) are flushed out, and the impurities are discharged through the blow-down valve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501907.2A CN114073870A (en) | 2021-12-09 | 2021-12-09 | Filter capable of being cleaned reversely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501907.2A CN114073870A (en) | 2021-12-09 | 2021-12-09 | Filter capable of being cleaned reversely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114073870A true CN114073870A (en) | 2022-02-22 |
Family
ID=80284498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111501907.2A Pending CN114073870A (en) | 2021-12-09 | 2021-12-09 | Filter capable of being cleaned reversely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114073870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849314A (en) * | 2022-04-25 | 2022-08-05 | 安徽川田环保科技有限公司 | Continuous filtering method capable of realizing uninterrupted filtering during cleaning |
-
2021
- 2021-12-09 CN CN202111501907.2A patent/CN114073870A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849314A (en) * | 2022-04-25 | 2022-08-05 | 安徽川田环保科技有限公司 | Continuous filtering method capable of realizing uninterrupted filtering during cleaning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108126396A (en) | Suction type self-cleaning filter | |
| CN218485333U (en) | Environmental protection equipment that sewage purification used | |
| CN114073870A (en) | Filter capable of being cleaned reversely | |
| CN208049509U (en) | Suction type self-cleaning filter | |
| CN216537591U (en) | Self-cleaning formula industrial air filter | |
| CN106492528A (en) | A kind of backwash filter | |
| CN216878158U (en) | Filter capable of being cleaned reversely | |
| CN219984137U (en) | Water purifying equipment with self-cleaning filter element | |
| CN209596672U (en) | A kind of water purifier fore filter | |
| CN201006362Y (en) | Brush type backwashing filter | |
| CN204147629U (en) | A kind of filtration system based on self-cleaning filter | |
| CN210736420U (en) | Sample processing device for water sample monitoring | |
| CN208292823U (en) | A kind of sewage treatment sedimentation basin convenient for removing sediment | |
| CN208493416U (en) | A kind of filter that can be cleaned automatically | |
| CN217431009U (en) | Quick filtration equipment for domestic sewage treatment | |
| CN216170216U (en) | Impurity filtering equipment for domestic sewage | |
| CN218130695U (en) | Dust collecting equipment that makes an uproar falls of ceramic material production usefulness | |
| CN213347981U (en) | Self-cleaning filter | |
| CN219355865U (en) | Ceramic membrane filter for industrial sewage treatment | |
| CN219771919U (en) | Sewage treatment device with impurity removing mechanism | |
| CN220736661U (en) | PP material sewage treatment tank | |
| CN212166678U (en) | Integrated sewage treatment device | |
| CN109368886A (en) | A kind of household sewage purification device | |
| CN215742499U (en) | Spiral gas automatic filtering device | |
| CN216604625U (en) | Air purification edulcoration device of environmental protection |
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 |