CN112807813B - Sewage filtering device - Google Patents
Sewage filtering device Download PDFInfo
- Publication number
- CN112807813B CN112807813B CN201911126548.XA CN201911126548A CN112807813B CN 112807813 B CN112807813 B CN 112807813B CN 201911126548 A CN201911126548 A CN 201911126548A CN 112807813 B CN112807813 B CN 112807813B
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- Prior art keywords
- sewage
- filter
- filtering
- funnel
- filter cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/0108—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with bag, cage, hose, tube, sleeve or the like filtering elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/803—Accessories in which the filtering elements are moved between filtering operations ; Particular measures for removing or replacing the filtering elements; Transport systems for filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
- B01D2201/345—Pressurized seals or gaskets
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a sewage filtering device, and belongs to the technical field of filters. This sewage filter equipment includes: the filter comprises a funnel, a first filter cartridge, a second filter cartridge and an elastic piece; the first filter cartridge is fixed inside the funnel, and the second filter cartridge is sleeved inside the first filter cartridge; the elastic piece is arranged at the bottom of the second filter cylinder; the second filter cartridge can slide up and down along the inner wall of the first filter cartridge. According to the sewage filtering device provided by the embodiment of the invention, the second filtering cylinder is arranged to slide up and down along the inner wall of the first filtering cylinder, so that the filtering area can be changed along with the flow of sewage. When the flow of the cleaning sewage is small, the effective filtering area is relatively small, the filtering nets are overlapped for filtering, so that solid impurities in the sewage can be effectively intercepted, and the filtering effect is best; when the flow of the cleaning sewage is large, the effective filtering area is relatively large, the filtering efficiency is high, the circulation capacity of the sewage with large discharge capacity can be ensured, and the sewage is prevented from overflowing the ground to cause environmental pollution.
Description
Technical Field
The invention relates to the technical field of filters, in particular to a sewage filtering device.
Background
After the natural gas purification plant operates for a period of time (usually 1-2 years), the plant needs to be shut down to clean the inside of the equipment and pipelines so as to ensure the cleanness of the inside of the plant system. The cleaned sewage is discharged through a sewage discharge port at the bottom of the equipment at present, then is connected into a buried sewage pipe network through a fixed funnel, and finally enters a sewage treatment unit for treatment.
Because impurity is more in the sewage, at present usually lay the filter screen in the funnel and stop the solid impurity in the sewage to reduce solid impurity and get into in sewage pipe network and the sewage treatment unit, avoid impurity to cause the jam in the sewage pipe network.
Designers have found that there are at least the following problems with the prior art:
because the effective filtration area of filter screen is less, when sewage displacement is great, wash sewage and can't in time get into through the filter screen and bury ground sewage pipe network, lead to wasing sewage and spill over from the funnel top and the polluted environment.
Disclosure of Invention
The embodiment of the invention provides a sewage filtering device, which can solve the problems.
Specifically, the method comprises the following technical scheme:
there is provided a sewage filtering apparatus including: the filter comprises a funnel, a first filter cylinder, a second filter cylinder and an elastic piece;
the first filter cartridge is fixed inside the funnel, and the second filter cartridge is sleeved inside the first filter cartridge;
the elastic piece is arranged at the bottom of the second filter cylinder and fixed on the inner wall of the funnel;
wherein the second filter cartridge can slide up and down along the inner wall of the first filter cartridge.
In one possible design, the sewage filtering apparatus further includes: sealing the circular ring;
the sealing ring is arranged at the top of the second filter cylinder and is positioned between the first filter cylinder and the second filter cylinder;
the second filter cartridge can drive the sealing ring to slide up and down along the inner wall of the first filter cartridge.
In one possible design, the bottom of the first filter cartridge is provided with a circular tower connection platform;
the circular tower joint is abutted to the outer wall of the second filter cylinder.
In one possible design, the top of the first filter cartridge is provided with a fixing fastener;
the fixed clamping piece is clamped at the top of the funnel.
In one possible design, the sewage filtering apparatus further includes: a support member;
one end of the supporting piece is connected with the outer wall of the first filter cylinder, and the other end of the supporting piece is fixed on the inner wall of the funnel.
In one possible design, the elastic member includes a circular arc-shaped support plate;
and the bottom of the second filter cartridge is provided with an arc-shaped partition plate which is abutted against the arc-shaped support plate.
In one possible design, the elastic member further includes a spring;
the top of the spring is connected to the arc-shaped supporting plate, and the bottom of the spring is fixed to the inner wall of the funnel.
In one possible design, the elastic element further comprises a waterproof jacket;
the waterproof sleeve is wrapped outside the spring.
In one possible design, the sewage filtering apparatus further includes: a triangular bracket;
one end of the triangular support is connected with the bottom of the elastic piece, and the other end of the triangular support is fixed on the inner wall of the funnel.
In one possible design, the sewage filtering apparatus further includes: an inner cylinder handle;
the inner cylinder handle is arranged at the top of the second filter cylinder.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
according to the sewage filtering device provided by the embodiment of the invention, the second filtering cylinder is arranged to slide up and down along the inner wall of the first filtering cylinder, so that the filtering area can be changed along with the flow of sewage. When the flow of the cleaning sewage is small, the elastic piece is in a natural telescopic state, the effective filtering area of the sewage filtering device is relatively small, but the filtering nets are overlapped and filtered by two layers, so that solid impurities in the sewage can be effectively intercepted, and the filtering effect is best; when washing sewage flow great, the elastic component is in compression state, and sewage filter equipment's effective filtration area is great relatively, and filtration efficiency is high, can guarantee that sewage in time filters through the funnel fast and gets into and bury ground sewage pipe network, prevents that sewage from spilling over ground, avoids causing environmental pollution.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sewage filtering apparatus according to an embodiment of the present invention.
The reference numerals in the drawings denote:
1. a funnel;
2. a first filter cartridge;
3. a second filter cartridge;
4. an elastic member; 41. a circular arc-shaped support plate; 42. a spring; 43. a waterproof jacket;
5. sealing the circular ring;
6. a circular tower connection platform;
7. fixing the clamping piece;
8. a support member;
9. a triangular bracket;
10. an inner barrel handle;
11. a sewage discharge line;
12. a buried sewage pipe network.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings. Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art.
In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like refer to orientations or positional relationships based on those shown in the drawings or orientations or positional relationships that are conventionally used to place the products of the present invention, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
An embodiment of the present invention provides a sewage filtering apparatus, as shown in fig. 1, the sewage filtering apparatus includes: the filter comprises a funnel 1, a first filter cylinder 2, a second filter cylinder 3 and an elastic piece 4;
the first filter cylinder 2 is fixed inside the funnel 1, and the second filter cylinder 3 is sleeved inside the first filter cylinder 2;
the elastic part 4 is arranged at the bottom of the second filter cylinder 3, and the elastic part 4 is fixed on the inner wall of the funnel 1;
wherein the second filter cartridge 3 can slide up and down along the inner wall of the first filter cartridge 2.
It can be understood that the first filter cartridge 2 and the second filter cartridge 3 are both of a mesh structure, and the bottom of the second filter cartridge 3 extends out of the first filter cartridge 2 and is connected with the elastic member 4. When the elastic part 4 is subjected to smaller external pressure, the overlapping surface of the first filter cylinder 2 and the second filter cylinder 3 is larger, and the effective filtering area of the sewage filtering device is smaller; when the elastic member 4 is subjected to a large external pressure, the overlapping surface of the first filter cartridge 2 and the second filter cartridge 3 is small, and the effective filtering area of the sewage filtering apparatus is large.
When in use, the sewage filtering device is connected between the sewage discharge pipeline 11 and the buried sewage pipe network 12, and sewage discharged from the sewage discharge pipeline 11 enters the second filter cartridge 3. When the flow of the cleaning sewage is small, the elastic part 4 is in a natural telescopic state, the sewage is filtered by the second filter cylinder 3, then is filtered by the first filter barrel 2, finally enters the inner cavity of the funnel 1 and enters the buried sewage pipe network 12 from the bottom of the funnel 1. When the flow of the cleaning sewage is large, the gravity and the impact force of the cleaning sewage compress the elastic part 4, so that the second filter cylinder 3 slides downwards along the inner wall of the first filter cylinder 2, the sewage can directly enter the inner cavity of the funnel 1 through the first filter cylinder 2 or the second filter cylinder 3, and then enters the buried sewage pipe network 12 from the bottom of the funnel 1.
According to the sewage filtering device provided by the embodiment of the invention, the second filtering cylinder 3 can slide up and down along the inner wall of the first filtering cylinder 2, so that the filtering area can be changed along with the flow of sewage. When the flow of the cleaning sewage is small, the elastic part 4 is in a natural telescopic state, the effective filtering area of the sewage filtering device is relatively small, but at the moment, two layers of filtering nets are overlapped for filtering, so that solid impurities in the sewage can be effectively intercepted, and the filtering effect is best; when washing sewage flow great, elastic component 4 is in compression state, and sewage filter equipment's effective filtration area is great relatively, and filtration efficiency is high, can guarantee that sewage is timely quick filters and gets into buried sewage pipe network 12 through funnel 1, prevents that sewage from spilling over ground, avoids causing environmental pollution.
In the above sewage filtering apparatus, the second filter cartridge 3 can slide up and down along the inner wall of the first filter cartridge 2, so that the cleaning sewage can enter the inner cavity of the funnel 1 through the first filter cartridge 2, can also enter the inner cavity of the funnel 1 through the second filter cartridge 3, and can also enter the inner cavity of the funnel 1 through the first filter cartridge 2 and the second filter cartridge 3.
In order to avoid sewage impurity from directly flowing through the gap between first cartridge filter 2 and the second cartridge filter 3, and make impurity get into the inner chamber of funnel 1, can set up sewage filter equipment and still include: a sealing ring 5; the sealing ring 5 is arranged at the top of the second filter cylinder 3 and is positioned between the first filter cylinder 2 and the second filter cylinder 3; the second filter cartridge 3 can drive the sealing ring 5 to slide up and down along the inner wall of the first filter cartridge 2.
During the use, sealed ring 5 can be fixed at the top of second cartridge filter 3, and sealed ring 5 closely laminates with the outer wall of first cartridge filter 2. When washing sewage flow great, the second cartridge filter 3 can drive the inner wall of sealed ring 5 and slide downwards for it is sealed all the time between first cartridge filter 2 and the second cartridge filter 3, avoids sewage impurity to directly flow through in the gap.
In the above sewage filtering apparatus, when the second filter cartridge 3 slides downwards along the inner wall of the first filter cartridge 2, in order to avoid the second filter cartridge 3 from sliding downwards out of the first filter cartridge 2, a circular tower connecting table 6 may be further provided at the bottom of the first filter cartridge 2; the ring tower connects 6 butts the outer wall of second cartridge filter 3, plays the effect that the restriction second cartridge filter 3 moved down.
When the flow of the cleaning sewage is large, the sealing ring 5 slides to the bottom of the first filter cylinder 2 until leaning against the ring tower connecting table 6, and at the moment, the effective filtering area of the sewage filtering device reaches the maximum and the filtering efficiency is the highest. The circular tower 6 can prevent the first filter cartridge 2 from sliding down to separate from the second filter cartridge 3.
In addition, in the correlation technique, because the filter screen of funnel bottom is not fixed, sewage is easy to be washed it open, leads to filtering the short circuit, and solid impurity directly gets into in the buried sewage pipe network, causes the pipeline to block up, and the filter effect is poor.
Based on this, the top of the first filter cartridge 2 can be provided with a fixing fastener 7; the fixed clip 7 clips the top of the funnel 1. The fixing clip 7 serves to fix the first filter cartridge 2 while also enabling the second filter cartridge 3 to be more stably inscribed in the first filter cartridge 2.
Further, the sewage filtering apparatus may further include: a support member 8; one end of the supporting piece 8 is connected with the outer wall of the first filter cylinder 2, and the other end is fixed on the inner wall of the funnel 1. Support piece 8 can set up in the outside of first cartridge filter 2 bottom, and support piece 8 is connected with funnel 1, can prevent that first cartridge filter 2 from warping, rocking, also can play the effect of fixed first cartridge filter 2.
This filter equipment can fix parts such as first cartridge filter 2, second cartridge filter 3 through being provided with corresponding mounting, and sets up sealed ring 5 between two filter screens, has prevented effectively that sewage from breaking the filter screen or making the short circuit between the filter screen and letting solid impurity get into and bury ground sewage pipe network in sewage, has fully ensured the filter effect.
In the above-described sewage filtering apparatus, the elastic member 4 is connected to the second filter cartridge 3 so that the second filter cartridge 3 can slide up and down. In the present invention, the connection mode between the elastic member 4 and the second filter cartridge 3 is not strictly limited, and may be a fixed connection or a movable connection. It is preferable to have the second filter cartridge 3 movably connected in consideration of convenience in subsequent cleaning of impurities in the second filter cartridge.
Illustratively, as shown in fig. 1, the elastic member 4 may be made to include a circular arc-shaped support plate 41; the bottom of the second filter cartridge 3 is provided with a circular arc-shaped partition plate which abuts on the circular arc-shaped support plate 41.
It can be understood that the part of the bottom of the second filter cartridge 3 connected with the elastic member 4 is a circular arc-shaped partition plate, and the rest parts are designed for the filter screen.
When the elastic member 4 is used, the second filter cartridge 3 is supported on the circular arc support plate 41 through the circular arc partition plate at the bottom, and pressure is applied to the elastic member 4 through the circular arc partition plate and the circular arc support plate 41, so that the elastic member is elastically deformed, and the second filter cartridge 3 slides up and down.
As shown in fig. 1, it is also possible to make the elastic member 4 include a spring 42; the top of the spring 42 is connected to the circular arc shaped support plate 41 and the bottom is fixed to the inner wall of the funnel 1.
Further, it is also possible to make the elastic member 4 comprise a waterproof jacket 43; the waterproof cover 43 covers the outside of the spring 42.
The waterproof jacket 43 is arranged to form a sealed waterproof structure for the elastic member 4, thereby preventing erosion of sewage.
In the above-mentioned sewage filtering apparatus, the top of the elastic member 4 is connected to the bottom of the second filter cartridge 3, and the bottom of the elastic member 4 is fixed to the inner wall of the funnel 1, and the fixing manner between the elastic member 4 and the funnel 1 is not strictly limited in the embodiment of the present invention. For example, as shown in fig. 1, the sewage filtering apparatus may further include: a triangular bracket 9; one end of the triangular support 9 is connected with the bottom of the elastic piece 4, and the other end is fixed on the inner wall of the funnel 1. The triangular support 9 serves to fixedly support the elastic member 4.
In addition, in the correlation technique, the filter screen is planar design usually, and when solid impurity was more on the filter screen, be not convenient for draw out or clear away the solid impurity on the filter screen, cause the effective filter area of filter screen to reduce, the sewage circulation is more unobstructed.
In the above sewage filtering apparatus, the second filter cartridge 3 may have a cup-shaped structure, and the cup-shaped structure has a strong capability of loading solid impurities, so that the effect of intercepting the solid impurities is better.
Further, set up sewage filter equipment and still include: an inner barrel handle 10; an inner barrel handle 10 is provided at the top of the second filter cartridge 3.
When the filter cartridge is used, when impurities in the second filter cartridge 3 are more, the second filter cartridge 3 can be conveniently and integrally taken out through the inner cylinder handle 10 on the upper portion of the second filter cartridge, solid impurities in the second filter cartridge are poured out, and the second filter cartridge is cleaned and then installed for reuse.
The arrangement of the inner barrel handle 10 can make the digging and the installation more convenient, and can prevent solid impurities from falling into the buried sewage pipe network 12 when the second filter cartridge 3 is dug out, thereby achieving better filtering effect, saving time and trouble.
In addition, the sewage filtering device provided by the embodiment of the invention is suitable for filtering when cleaning sewage of pipelines such as petroleum and natural gas, chemical production equipment and the like is discharged, is mainly used for filtering the cleaning sewage at a ground leakage position, and is particularly suitable for filtering when the cleaning sewage in the pipelines of the natural gas purifying equipment is discharged.
The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A sewage filtering apparatus, comprising: the filter comprises a funnel (1), a first filter cylinder (2), a second filter cylinder (3) and an elastic piece (4);
the first filter cylinder (2) is fixed inside the funnel (1), and the second filter cylinder (3) is sleeved inside the first filter cylinder (2);
the elastic piece (4) is arranged at the bottom of the second filter cylinder (3), and the elastic piece (4) is fixed on the inner wall of the funnel (1);
the second filter cartridge (3) can slide up and down along the inner wall of the first filter cartridge (2), the part of the bottom of the second filter cartridge (3) connected with the elastic part (4) is an arc-shaped partition plate, and the rest parts are designed as filter screens;
the elastic piece (4) comprises a circular arc-shaped support plate (41);
the bottom of the second filter cartridge (3) is provided with a circular arc-shaped partition plate which is abutted against the circular arc-shaped support plate (41).
2. The sewage filtration device of claim 1, further comprising: a sealing ring (5);
the sealing ring (5) is arranged on the top of the second filter cylinder (3) and is positioned between the first filter cylinder (2) and the second filter cylinder (3);
the second filter cylinder (3) can drive the sealing ring (5) to slide up and down along the inner wall of the first filter cylinder (2).
3. Sewage filtering device according to claim 2, characterized in that the bottom of said first filtering cartridge (2) is provided with a circular tower (6);
the circular tower joint (6) is connected with the outer wall of the second filter cylinder (3) in an abutting mode.
4. Sewage filtering device according to claim 1, characterized in that the top of said first filtering cartridge (2) is provided with a fixing clip (7);
the fixed clamping piece (7) is clamped with the top of the funnel (1).
5. The sewage filtration device of claim 4, further comprising: a support (8);
one end of the supporting piece (8) is connected with the outer wall of the first filter cylinder (2), and the other end of the supporting piece is fixed on the inner wall of the funnel (1).
6. The effluent filtering device according to claim 5, wherein said elastic member (4) further comprises a spring (42);
the top of the spring (42) is connected to the circular arc-shaped support plate (41), and the bottom of the spring is fixed to the inner wall of the funnel (1).
7. Sewage filtering device according to claim 6, characterised in that said elastic element (4) further comprises a waterproof jacket (43);
the waterproof sleeve (43) is coated outside the spring (42).
8. The sewage filtration device of claim 1, further comprising: a triangular bracket (9);
one end of the triangular support (9) is connected with the bottom of the elastic piece (4), and the other end of the triangular support is fixed on the inner wall of the funnel (1).
9. The effluent filter unit according to any one of claims 1 to 8 further comprising: an inner barrel handle (10);
the inner cylinder handle (10) is arranged at the top of the second filter cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911126548.XA CN112807813B (en) | 2019-11-18 | 2019-11-18 | Sewage filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911126548.XA CN112807813B (en) | 2019-11-18 | 2019-11-18 | Sewage filtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112807813A CN112807813A (en) | 2021-05-18 |
| CN112807813B true CN112807813B (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911126548.XA Active CN112807813B (en) | 2019-11-18 | 2019-11-18 | Sewage filtering device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109669A (en) * | 2021-10-13 | 2022-03-01 | 陈数 | Composite adsorption type air filter |
| CN114208754B (en) * | 2021-12-25 | 2023-02-14 | 广东海昌沅国通食材有限公司 | Slag discharging type seafood pool convenient and fast to use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205412473U (en) * | 2016-04-06 | 2016-08-03 | 嘉善绿野环保材料厂(普通合伙) | Filtering mechanism |
| CN206342965U (en) * | 2016-12-20 | 2017-07-21 | 鲍鹏宇 | A kind of refuse disposal installation |
| CN207412889U (en) * | 2017-08-10 | 2018-05-29 | 广州涞瑞水处理技术有限公司 | Stacked filter plant |
| CN207520684U (en) * | 2017-10-29 | 2018-06-22 | 江苏腾龙石化机械有限公司 | A kind of Wellhead filter for water flooding in oil field |
-
2019
- 2019-11-18 CN CN201911126548.XA patent/CN112807813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205412473U (en) * | 2016-04-06 | 2016-08-03 | 嘉善绿野环保材料厂(普通合伙) | Filtering mechanism |
| CN206342965U (en) * | 2016-12-20 | 2017-07-21 | 鲍鹏宇 | A kind of refuse disposal installation |
| CN207412889U (en) * | 2017-08-10 | 2018-05-29 | 广州涞瑞水处理技术有限公司 | Stacked filter plant |
| CN207520684U (en) * | 2017-10-29 | 2018-06-22 | 江苏腾龙石化机械有限公司 | A kind of Wellhead filter for water flooding in oil field |
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| CN112807813A (en) | 2021-05-18 |
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