CN112386993B - Automatically cleaning sewage filter equipment - Google Patents
Automatically cleaning sewage filter equipment Download PDFInfo
- Publication number
- CN112386993B CN112386993B CN202011369423.2A CN202011369423A CN112386993B CN 112386993 B CN112386993 B CN 112386993B CN 202011369423 A CN202011369423 A CN 202011369423A CN 112386993 B CN112386993 B CN 112386993B
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- sliding plate
- water tank
- filter body
- fixed
- 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
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/015—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements
- B01D33/0158—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements self-supporting
- B01D33/0175—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with flat filtering elements self-supporting with curved filtering elements
-
- 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
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- 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
-
- 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
-
- 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
- B01D33/802—Device for changing the inclination of the filtering element
-
- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- 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 relates to a self-cleaning sewage filtering device, which effectively solves the problems of untimely cleaning and the like during sewage filtering; the technical scheme for solving the problem is that the device comprises a bracket, wherein a left first supporting rod, a right first supporting rod and a plurality of second supporting rods positioned in the middle are arranged on the bracket; a filter body which can move up and down along the second support rods and reset upwards is arranged on the plurality of second support rods; a water inlet fixed on the bracket is arranged above the filter body; a water tank which moves up and down along with the filter body is connected below the filter body through a guide rod, and a siphon is arranged in the water tank; the middle part of the upper side plate of the water tank is provided with a through hole, a left sliding plate and a right sliding plate are symmetrically arranged above the upper side plate of the water tank, the sliding plates can move left and right and are mutually closed to reset, and the left sliding plate and the right sliding plate can block the through hole after being closed; the outer side of each sliding plate is connected with a rope, and the other end of each rope is fixed on the second supporting rod; the invention can automatically clean and avoid the long-time blockage or high load of the filter screen.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a self-cleaning sewage filtering device.
Background
The sewage is generally subjected to primary filtration to filter various impurities contained in the sewage; after which further processing takes place. When filtering, the filter screen is easily blocked due to various types of impurities in the sewage; thereby affecting the effectiveness and speed of filtration. Most of filtering devices on the market at present dredge the filter screen in a mode of cleaning regularly, and treat sundries accumulated on the filter screen; the cleaning process not only needs to be stopped, but also increases the workload. Some devices also use water or air pressure to flush the filter screen in real time, so that on one hand, unnecessary water pumps or air pumps are added, on the other hand, water used for flushing the filter screen is mixed with filtered impurities, the sewage quantity is increased, and the water content of the impurities is also increased; the subsequent treatment is inconvenient; particularly, the filter screen is easy to adhere to light and thin sundries such as plastic bags and the like, so that the filter screen is blocked in a large area, the cleaning frequency is low by adopting the traditional mode, and the sundries can not be removed in time; meanwhile, for some sundries such as stone bricks, even if the filter screen is not blocked, the long-time heavy load of the filter screen and the repeated dynamic impact of the sundries can aggravate the damage of the filter screen; there is therefore a need to solve the above problems.
Disclosure of Invention
In view of the above situation, the present invention provides a self-cleaning sewage filtering apparatus, which can effectively solve the problems of untimely cleaning during sewage filtering.
The technical scheme for solving the problem is that the device comprises a bracket, wherein a left first supporting rod, a right first supporting rod and a plurality of second supporting rods positioned in the middle are arranged on the bracket; a filter body which can move up and down along the second support rods and reset upwards is arranged on the plurality of second support rods;
the filter body comprises a shell, the upper end of the shell is provided with a feed inlet, and the lower end of the shell is provided with a discharge outlet; a rotating shaft transversely penetrates through the shell, and a gear is fixed at the end part of the rotating shaft; a section of rack which can be meshed with the gear on the same side is respectively fixed on the left and the right first supporting rods; after the filter body descends, the gear is meshed with the rack to ensure that the rotating shaft rotates; a cylinder arranged in the discharge port is fixed on the rotating shaft; the outer edge surface of the cylinder is symmetrically provided with openings in the length direction in the front and back direction; each opening is hinged with a water baffle which can swing and reset; a filter screen is arranged below the outer edge surface of the cylinder; the left side and the right side of the cylinder are provided with side plates, and the upper half part of each side plate is provided with a slag discharge port;
a water inlet fixed on the bracket is arranged above the filter body; a water tank which moves up and down along with the filter body is connected below the filter body through a guide rod, a siphon is arranged in the water tank,
the middle part of the upper side plate of the water tank is provided with a through hole, a left sliding plate and a right sliding plate are symmetrically arranged above the upper side plate of the water tank, the sliding plates can move left and right and are mutually closed for resetting, and the left sliding plate and the right sliding plate can block the through hole after being closed; the outer side of each sliding plate is connected with a rope, and the other end of each rope is fixed on the second supporting rod; after the water tank descends along with the filter body, the rope is tensioned, and the left sliding plate and the right sliding plate can move back to back; causing the through-hole to be opened.
The automatic cleaning device disclosed by the invention has the advantages that the automatic cleaning is realized, the service life of the device is prolonged, and the long-time blockage or long-time high load of the filter screen is avoided.
Drawings
Fig. 1 is a front view of the present invention.
FIG. 2 is a front sectional view of the present invention.
Fig. 3 is a left side view of the filter body of the present invention.
Fig. 4 is a left side sectional view of the filter cartridge (filtration state).
Fig. 5 is a left side sectional view of the filter cartridge (in an inverted state).
Fig. 6 is a perspective view of the filter cartridge.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 6, the present invention includes a bracket 1, wherein the bracket 1 is provided with a left first support rod 2 and a right first support rod 2, and a plurality of second support rods 3 in the middle; a filter body 4 which can move up and down along the second support rods 3 and reset upwards is arranged on the plurality of second support rods 3;
the filter body 4 comprises a shell 401, the upper end of the shell 401 is provided with a feed inlet 402, and the lower end is provided with a discharge outlet 403; a rotating shaft 404 transversely penetrates through the shell 401, and a gear 405 is fixed at the end of the rotating shaft 404; a section of rack 406 which can be meshed with the gear 405 on the same side is respectively fixed on the left and the right first supporting rods 2; after the filter body 4 descends, the gear 405 is meshed with the rack 406, so that the rotating shaft 404 rotates 180 degrees; a cylinder 407 arranged in the discharge hole 403 is fixed on the rotating shaft 404; the outer edge surface of the cylinder 407 is symmetrically provided with openings 408 in the length direction; a water baffle 409 which can swing and reset is hinged at each opening 408; below in the outer peripheral surface of the cylinder 407 is a screen 410; the left side and the right side of the cylinder 407 are provided with side plates 411, and the upper half part of each side plate 411 is provided with a slag discharge port 412;
a water inlet 5 fixed on the bracket 1 is arranged above the filter body 4; a water tank 6 which moves up and down along with the filter body 4 is connected below the filter body 4 through a guide rod 8, a siphon pipe 7 is arranged in the water tank 6,
a through hole 9 is formed in the middle of an upper side plate 411 of the water tank 6, a left sliding plate and a right sliding plate 10 are symmetrically arranged above the upper side plate 411 of the water tank 6, the sliding plates 10 can move left and right and are mutually close to reset, and the left sliding plate and the right sliding plate 10 can block the through hole 9 after being close to each other; the outer side of each sliding plate 10 is connected with a rope 11, and the other end of each rope 11 is fixed on the second supporting rod 3; after the water tank 6 descends along with the filter body 4, the rope 11 is tensioned, and the left sliding plate 10 and the right sliding plate 10 can move back to back; so that the through-hole 9 is opened.
In order to realize the installation of the filter body 4, the shell 401 of the filter body 4 on install a plurality of sleeves 12, the second support rod 3 runs through the sleeves 12, every second support rod 3 is equipped with an extension spring 13, the upper end of the extension spring 13 is fixed at the top of the bracket 1, and the lower end of the extension spring 13 is fixed on the sleeve 12.
In order to realize the installation and the reset of the sliding plate 10, a guide rail 15 is arranged on an upper side plate 411 of the water tank 6, the sliding plate 10 can move left and right along the guide rail 15, and a pressure spring 19 is connected between the outer side surface of the sliding plate 10 and the second support rod 3; a collar 20 is fixed to the upper side plate 411 of the water tank 6, and the middle part of the rope 11 runs through the collar 20 and is diverted by the collar 20.
In order to avoid the filter 4 from excessively descending, a second limiting protrusion 16 corresponding to the lower end of the rack 406 is fixed on each first supporting rod 2.
In order to more stably enable the rotating shaft 404 to support the cylinder 407, a plurality of wales 17 are fixed on the rotating shaft 404, and the end portions of the wales 17 are fixed on the inner side surface of the cylinder 407.
In order to enable the water baffle 409 hinged at the opening 408 to reset after rotating, the upper end of the water baffle 409 is hinged with the upper side surface of the opening 408, a torsion spring is installed at the hinged point, and the torsion spring can enable the water baffle 409 to be kept in a state of blocking the opening 408.
In order to facilitate the discharge of the impurities to both sides, a chute 18 is fixed on each first supporting rod 2 and is arranged obliquely.
In order to enhance the filtering effect, the bottom of the casing 401 is inclined with a lower middle and two higher sides, and the bottom of the casing 401 is in a filter mesh shape.
When the present invention is used, firstly, in the case that the filter 4 is not blocked, i.e. the lower half of the strainer 410 in the cylinder 407 is not blocked, the sewage flows downward from the upper water inlet 5, and then directly enters the interior of the filter 4 through the feed port 402 of the housing 401 of the filter 4.
Since the cylinder 407 in the interior of the filter body 4 is located at the discharge port 403 of the housing 401, the sewage is filtered by the cylinder 407; specifically, in the initial state, the strainer 410 of the cylinder 407 is located below, and the upper portion corresponding to the strainer 410 is a solid portion, so that when sewage falls onto the cylinder 407 from top to bottom, the sewage is blocked by the solid portion on the cylinder 407, is dispersed to the front and rear sides of the cylinder 407, and enters the interior of the cylinder 407 through the openings 408 on the front and rear sides of the cylinder 407 by the gathering action of the housing 401; because the opening 408 is hinged with the water baffle 409, the sewage drives sundries to push the water baffle 409 to incline and enter the cylinder 407. Then, the impurities remain inside the cylinder 407 by the filter screen 410 at the bottom of the cylinder 407, and the filtered sewage flows downward through the cylinder 407.
When the filtered sewage flows downwards, the sewage on the left side and the sewage on the right side flow through the water tank 6. In the initial state, the impurities inside the cylinder 407 are less, and the filter screen 410 is not blocked, so the whole filter body 4 is at the top of the stroke, at this time, referring to fig. 2, since the state of the sliding plate 10 on the water tank 6 is closely related to the descending height of the filter body 4, when the filter body 4 is not descended, the ropes 11 at the left and right sides are in a loose state, the sliding plates 10 are pressed together by the compression spring 19, and the through hole 9 above the water tank 6 is blocked; i.e., the water flow will be blocked by the slide 10 and not enter the interior of the box.
The above is a normal filtration state; when the filter screen 410 is clogged or the filter screen 410 has heavy impurities, the downward component force applied to the entire filter 4 increases, the tension spring 13 of the second support rod 3 is also stretched, i.e., the filter 4 descends, and when the filter 4 descends, the water tank 6 descends. When the water tank 6 descends, the rope 11 is tightened, and the sliding plate 10 is pulled to move towards two sides at the moment, so that the through hole 9 above the water tank 6 is partially opened, the sliding plate 10 does not completely block sewage any more, and a part of sewage can enter the water tank 6; thereby increasing the weight of the water tank 6.
As the weight of the water tank 6 is increased, the whole filter body 4 and the water tank 6 are further lowered, so that a positive feedback phenomenon occurs, that is, the more water is introduced into the water tank 6, the more the water tank 6 is lowered, the more the through hole 9 is opened, and the more water is introduced into the water tank 6. With the continuous descending of the filter body 4, the gear 405 at the end of the rotating shaft 404 penetrating through the filter body 4 is meshed with the rack 406 on the first support rod 2, and because the weight of the water in the water tank 6 is larger, the water is pulled by the gravity of the water tank 6; the gear 405 drives the rotating shaft 404 to rotate; then the rotating shaft 404 drives the cylinder 407 to rotate; due to the length limitation of the rack 406, the rotating shaft 404 can only drive the cylinder 407 to rotate 180 degrees, i.e. the cylinder 407 is upside down. See fig. 4 and 5; the lower screen 410 would be at the top at this time; and the inner impurities fall into the solid part of the cylinder 407; and the sundries can not fall out in the overturning process due to the action of the water baffle 409. As sewage is still entering; at this time, the sewage reversely flushes the filter screen 410, enters the cylinder 407 after being filtered by the filter screen 410, and flushes the impurities on the solid part; because the side plate 411 is provided with the slag discharge port 412, the slag discharge port 412 is also positioned at the lower position after the side plate is turned over, so that impurities can be discharged from the slag discharge ports 412 at two sides; and the impurities fall on the slideway 18 and are discharged to both sides. The discharged sundries can be collected and treated uniformly by the collecting box.
During the above-mentioned overturning, the water in the tank 6 is already close to the discharge level of the siphon 7; after the sundries are discharged for a certain time, the water filtered and discharged through the gaps of the discharge holes 403 of the shell 401 and the cylinder 407 and the inclined filter screen 410 at the bottom of the shell 401 can continuously enter the water tank 6, so that the water in the water tank 6 reaches the drainage height; at this time, the water in the water tank 6 is discharged completely as soon as it is discharged; the weight of the water tank 6 is then reduced; the entire apparatus is raised, and the drum 407 is rotated in reverse and reset to its original state.
The device uses the descending generated after the filter body 4 is blocked or the load is too large as an automatic judgment condition, thereby using the descending height; after the sliding plate 10 moves, a large amount of water flows into the water tank 6, and then the weight of the water tank 6 is utilized to achieve the purpose of pulling the whole filter body 4 to descend greatly again, so that the cylinder 407 is overturned, sundries are discharged, and the filter screen 410 is cleaned; simple, efficient and automatic. Because the blocking condition and the loading condition of the filter screen 410 are utilized, when the sewage is relatively clean, the whole device cannot be cleaned frequently, and the overall stability is improved.
This device is arranging the sediment after, a period of time after, and the water in the water tank 6 can discharge fast, has realized the automation of whole device and has reset, must artificial intervention, has alleviateed the burden, has improved the life of device, has avoided long-time jam of filter screen 410 or long-time high load.
Claims (6)
1. A self-cleaning sewage filtering device comprises a bracket (1), and is characterized in that the bracket (1) is provided with a left first supporting rod and a right first supporting rod (2) and a plurality of second supporting rods (3) positioned in the middle; a filter body (4) which can move up and down along the second support rods (3) and reset upwards is arranged on the second support rods (3);
the filter body (4) comprises a shell (401), the upper end of the shell (401) is provided with a feed inlet (402), and the lower end of the shell is provided with a discharge outlet (403); a rotating shaft (404) transversely penetrates through the shell (401), and a gear (405) is fixed at the end part of the rotating shaft (404); a section of rack (406) which can be meshed with the gear (405) at the same side is respectively fixed on the left and the right first supporting rods (2); after the filter body (4) descends, the gear (405) is meshed with the rack (406), so that the rotating shaft (404) rotates 180 degrees; a cylinder (407) arranged in the discharge hole (403) is fixed on the rotating shaft (404); the outer edge surface of the cylinder (407) is symmetrically provided with openings (408) in the length direction from front to back; a water baffle (409) capable of swinging and resetting is hinged at each opening (408); below in the outer peripheral surface of the cylinder (407) is a strainer (410); the left side and the right side of the cylinder (407) are provided with side plates (411), and the upper half part of each side plate (411) is provided with a slag discharge port (412);
a water inlet (5) fixed on the bracket (1) is arranged above the filter body (4); a water tank (6) which moves up and down along with the filter body (4) is connected below the filter body (4) through a guide rod (8), a siphon (7) is arranged in the water tank (6),
a through hole (9) is formed in the middle of an upper side plate (411) of the water tank (6), a left sliding plate and a right sliding plate (10) are symmetrically arranged above the upper side plate (411) of the water tank (6), the sliding plates (10) can move left and right and are mutually closed to reset, and the through hole (9) can be blocked after the left sliding plate and the right sliding plate (10) are closed; the outer side of each sliding plate (10) is connected with a rope (11), and the other end of each rope (11) is fixed on the second supporting rod (3); after the water tank (6) descends along with the filter body (4), the rope (11) is tensioned, and the left sliding plate (10) and the right sliding plate (10) can move back to back; causing the through hole (9) to be opened;
the utility model discloses a filter body (4) and filter method, filter body (4) shell (401) on install a plurality of sleeves (12), sleeve (12) are run through in second bracing piece (3), all overlap on every second bracing piece (3) and be equipped with extension spring (13), the top at support (1) is fixed to the upper end of extension spring (13), the lower extreme of extension spring (13) is fixed on sleeve (12).
2. A self-cleaning sewage filtering device according to claim 1, wherein a guide rail (15) is arranged on the upper side plate (411) of the water tank (6), the sliding plate (10) can move left and right along the guide rail (15), and a pressure spring (19) is connected between the outer side surface of the sliding plate (10) and the second support rod (3); a lantern ring (20) is fixed on the upper side plate (411) of the water tank (6), and the middle part of the rope (11) runs through the lantern ring (20) and is reversed through the lantern ring (20).
3. A self-cleaning sewage filtering device according to claim 1, wherein each of said first supporting rods (2) is fixed with a second limit protrusion (16) corresponding to the lower end of the rack (406).
4. A self-cleaning sewage filter device according to claim 1 wherein a plurality of cross braces (17) are fixed on the rotating shaft (404), and the ends of the cross braces (17) are fixed on the inner side of the cylinder (407).
5. The self-cleaning sewage filtering device according to claim 1, wherein the upper end of the water baffle (409) is hinged with the upper side surface at the opening (408), and a torsion spring is installed at the hinged point, and the torsion spring can keep the water baffle (409) in a state of blocking the opening (408).
6. A self-cleaning sewage filtering device according to claim 1 wherein each of said first support rods (2) is fixed with an obliquely arranged slide way (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369423.2A CN112386993B (en) | 2020-11-30 | 2020-11-30 | Automatically cleaning sewage filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369423.2A CN112386993B (en) | 2020-11-30 | 2020-11-30 | Automatically cleaning sewage filter equipment |
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| Publication Number | Publication Date |
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| CN112386993A CN112386993A (en) | 2021-02-23 |
| CN112386993B true CN112386993B (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011369423.2A Active CN112386993B (en) | 2020-11-30 | 2020-11-30 | Automatically cleaning sewage filter equipment |
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| Country | Link |
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| CN (1) | CN112386993B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000246024A (en) * | 1999-02-25 | 2000-09-12 | Veritas:Kk | Suspended substance filtering treatment apparatus |
| CN102600657A (en) * | 2010-12-06 | 2012-07-25 | 张鑫珩 | Drum microfiltration machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140779Y (en) * | 1992-12-24 | 1993-08-25 | 陈连树 | Sieve cylinder solid-liquid separator |
| JPH10263324A (en) * | 1997-03-26 | 1998-10-06 | Tokyo Metropolis | Solid-liquid separation in sewerage disposal system, filter cloth rotation type solid-liquid separator and sewerage disposal system using the separator |
| US6336561B1 (en) * | 1999-06-11 | 2002-01-08 | John Michael Kossik | Disposable rotary drum filter |
| KR20100003945U (en) * | 2008-10-06 | 2010-04-15 | 이창호 | Fiber disc type dirty water filter |
| CN202590475U (en) * | 2012-03-07 | 2012-12-12 | 江苏鹏鹞环境工程承包有限公司 | Fine grating pollution cleaning device |
| US9878289B2 (en) * | 2012-09-13 | 2018-01-30 | Tapp Global Design Inc. | Fluid treatment apparatus and method of using same |
| CN107840392B (en) * | 2017-12-08 | 2020-04-14 | 宁波清智环保科技有限公司 | Sewage separation process |
| CN108295544A (en) * | 2018-03-06 | 2018-07-20 | 盐城元之元机械有限公司 | A kind of chemical industry small chemical filtering device for raw material |
| CN111249786B (en) * | 2020-03-30 | 2021-12-10 | 南京润中环境科技有限公司 | Unpowered self-cleaning sewage residue filtering device |
-
2020
- 2020-11-30 CN CN202011369423.2A patent/CN112386993B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000246024A (en) * | 1999-02-25 | 2000-09-12 | Veritas:Kk | Suspended substance filtering treatment apparatus |
| CN102600657A (en) * | 2010-12-06 | 2012-07-25 | 张鑫珩 | Drum microfiltration machine |
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| Publication number | Publication date |
|---|---|
| CN112386993A (en) | 2021-02-23 |
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