CN111318062A - River sewage treatment device - Google Patents
River sewage treatment device Download PDFInfo
- Publication number
- CN111318062A CN111318062A CN202010136528.7A CN202010136528A CN111318062A CN 111318062 A CN111318062 A CN 111318062A CN 202010136528 A CN202010136528 A CN 202010136528A CN 111318062 A CN111318062 A CN 111318062A
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- China
- Prior art keywords
- river
- mounting
- filter screen
- driving
- sewage treatment
- 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.)
- Granted
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- 239000010865 sewage Substances 0.000 title claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 41
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 26
- 230000003028 elevating effect Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000003466 welding Methods 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
- B01D29/64—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
- B01D29/6423—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 translational movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a river sewage treatment device, which comprises a filter screen and a cleaning unit, wherein the filter screen is used for filtering impurities on the river surface, the cleaning unit is used for cleaning the impurities and is fixedly arranged in a river channel in an arc shape, the cleaning unit comprises a cleaning assembly and a salvaging assembly, the salvaging assembly is used for conveying the impurities to the bank, the cleaning assembly comprises a cleaning brush and a driving mechanism, the driving mechanism is used for driving the cleaning brush to move, the driving mechanism comprises a rotary disc, a power part and a swing rod, the power part is used for driving the rotary disc to rotate, the salvaging assembly comprises a salvaging net frame and a lifting mechanism, the lifting mechanism is used for driving the salvaging net frame to lift, the cleaning unit is arranged in the application, the impurities blocked by the filter screen are swept to the bank sides, and the filtering efficiency; be equipped with and salvage the subassembly, fall debris on the bank automatically, do not need the manual work to salvage, it is safe high-efficient more, work efficiency is high.
Description
Technical Field
The invention relates to the technical field of river channel cleaning, in particular to a river channel sewage treatment device.
Background
Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
The river course is easy to be polluted by various kinds of agriculture, industry, life and the like, various kinds of garbage sundries are frequently floated on the river course and need to be cleaned, and the conventional mode of manual salvage is low in efficiency, high in labor intensity of workers and unsafe.
Disclosure of Invention
The invention aims to provide a river sewage treatment device to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a river sewage treatment device comprises a filter screen for filtering river impurities and a cleaning unit for cleaning the impurities, wherein the filter screen is fixedly arranged in a river channel and is arranged in an arc shape, the cleaning unit comprises a cleaning assembly and a fishing assembly for conveying the impurities to the bank, the cleaning assembly comprises a cleaning brush and a driving mechanism for driving the cleaning brush to move, the driving mechanism is arranged on a first mounting plate, the first mounting plate is fixedly arranged in the river channel, the driving mechanism comprises a rotary disc, a power part and a swing rod for driving the rotary disc to rotate, the rotary disc is rotatably arranged on the first mounting plate through a first mounting shaft, a swing rod is connected above the rotary disc in a matching manner, one end, far away from the filter screen, of the swing rod is hinged to the first mounting plate, the cleaning brush is arranged at one end, close to the filter screen, of the swing rod, a cylindrical pin is fixedly arranged at the outer ring of the end face, close to the swing rod, the fishing assembly comprises a fishing net frame and a lifting mechanism used for driving the fishing net frame to lift.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: and a limiting nail is arranged at the end part of the cylindrical pin far away from the turntable in a penetrating way.
In one alternative: the power component comprises first propeller blades and a first bevel gear pair, the first propeller blades are arranged on the first mounting plate in a rotating mode through a second mounting shaft, and the second mounting shaft is connected with the first mounting shaft through the first bevel gear pair in a driving mode.
In one alternative: the utility model discloses a cleaning brush, including swing rod, installation cover, swing rod tip and installation cover, the swing rod is close to one pot head of filter screen and is equipped with the installation cover, fixedly connected with spring between swing rod tip and the installation cover, the tip demountable installation that the installation cover is close to the filter screen has the brush cleaner.
In one alternative: elevating system includes reciprocal lead screw, is used for driving reciprocal lead screw pivoted rotary mechanism and internal thread sleeve, reciprocal lead screw rotates through the second mounting panel and installs in the river course side, internal thread sleeve screw suit is on reciprocal lead screw, internal thread sleeve and river course side sliding connection, salvage the net frame and rotate through fourth installation axle and install on internal thread sleeve lateral wall, salvage net frame lateral wall and the laminating of river course side contact, the epaxial fixed mounting of fourth installation has the straight-teeth gear, river course top fixed mounting has the rack with straight-teeth gear meshing.
In one alternative: the rotating mechanism comprises second propeller blades and a second bevel gear pair, the second propeller blades are rotatably installed on the side edge of the river channel through a third installation shaft, and the third installation shaft is connected with the reciprocating screw rod through the second bevel gear pair in a driving mode.
In one alternative: the upper fixed mounting of internal thread sleeve has the slider, the gliding spout of confession slider is seted up to the river course side.
Compared with the prior art, the invention has the following beneficial effects:
1. the cleaning assembly comprises a cleaning brush and a driving mechanism for driving the cleaning brush to move, the driving mechanism comprises a rotary disc, a power part and a swing rod, the power part and the swing rod are used for driving the rotary disc to rotate, when water in the river flows, the first propeller blade and the second installation shaft are driven to rotate, the second installation shaft drives the first installation shaft and the rotary disc on the first installation shaft to rotate through a bevel gear pair, the rotary disc drives a cylindrical pin to rotate, the cylindrical pin drives the swing rod to swing, and the swing rod drives the installation sleeve and the cleaning brush to swing in a reciprocating mode, so that the sundries blocked by the filter screen are swept to the sides of the river, and the filtering efficiency of the filter screen is prevented from being influenced by the sundries accumulated in the river;
2. the fishing net frame is provided with a fishing assembly, the fishing assembly comprises a fishing net frame and a lifting mechanism for driving the fishing net frame to lift, the lifting mechanism comprises a reciprocating screw rod, a rotating mechanism for driving the reciprocating screw rod to rotate and an internal thread sleeve, the rotating mechanism comprises a second screw blade and a second bevel gear pair, river water continuously impacts the second screw blade, the second screw blade drives a third mounting shaft to rotate, the third mounting shaft drives the reciprocating screw rod to rotate through the second bevel gear pair, the reciprocating screw rod drives the internal thread sleeve to reciprocate up and down, the internal thread sleeve drives a fourth mounting shaft and the fishing net frame on the fourth mounting shaft to move up and down, when the fishing net frame moves up to the top of a river channel, the fourth mounting shaft and the fishing net frame are driven to rotate due to the meshing of gears and racks, so that the fishing net frame rotates to the bank, and sundries in the, do not need artifical the salvage, it is safe high-efficient more, work efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
FIG. 3 is a schematic structural view of a fishing assembly according to a first embodiment of the present invention.
FIG. 4 is a schematic structural view of a sweeping assembly according to a first embodiment of the present invention.
Notations for reference numerals: 1-filter screen, 2-mounting sleeve, 3-spring, 4-first propeller blade, 5-salvaging screen frame, 6-straight gear, 7-rack, 8-slide block, 9-second mounting plate, 10-second propeller blade, 11-reciprocating screw rod, 12-first mounting plate, 13-rotary table, 14-first bevel gear pair, 15-oscillating rod, 16-cylindrical pin, 17-internal thread sleeve, 18-through groove, 19-second bevel gear pair and 20-cleaning brush.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
Example 1
Referring to fig. 1 to 4, in the embodiment of the invention, a river sewage treatment device comprises a filter screen 1 for filtering impurities on a river surface and a cleaning unit for cleaning the impurities, wherein the filter screen 1 is fixedly installed in a river channel and is arranged in an arc shape, the cleaning unit comprises a cleaning assembly and a fishing assembly for conveying the impurities to a bank, the cleaning assembly comprises a cleaning brush 20 and a driving mechanism for driving the cleaning brush 20 to move, the driving mechanism is installed on a first installation plate 12, the first installation plate 12 is fixedly installed in the river channel, the driving mechanism comprises a rotary plate 13, a power component for driving the rotary plate 13 to rotate and a swing rod 15, the rotary plate 13 is rotatably installed on the first installation plate 12 through the first installation shaft, a swing rod 15 is cooperatively connected above the rotary plate 13, and one end of the swing rod 15, which is far away from the filter screen 1, is hinged to the first installation plate 12, in this embodiment, the hinge point of the swing rod 15 and the first mounting plate 12 is preferably located at the arc center of the filter screen 1, one end of the swing rod 15 close to the filter screen 1 is provided with a cleaning brush 20, further, one end of the swing rod 15 close to the filter screen 1 is sleeved with a mounting sleeve 2, a spring 3 is fixedly connected between the end of the swing rod 15 and the mounting sleeve 2, in this embodiment, two ends of the spring 3 are preferably fixed with the swing rod 15 and the mounting sleeve 2 respectively by welding, the end of the mounting sleeve 2 close to the filter screen 1 is detachably provided with the cleaning brush 20, in this embodiment, the cleaning brush 20 is preferably connected with the mounting sleeve 2 by screws, the outer ring of the end surface of the rotary disc 13 close to the swing rod 15 is fixedly provided with a cylindrical pin 16, the swing rod 15 is provided with a through groove 18 for the cylindrical pin 16 to insert and slide, the end of the cylindrical pin 16 far away from the rotary, the cylindrical pin 16 is prevented from being separated from the oscillating rod 15, the power component comprises a first propeller blade 4 and a first bevel gear pair 14, the first propeller blade 4 is installed on the first mounting plate 12 under water in a rotating mode through a second mounting shaft, the second mounting shaft is connected with the first mounting shaft through the first bevel gear pair 14 in a driving mode, when water in a river channel flows, the first propeller blade 4 and the second mounting shaft are driven to rotate, the second mounting shaft drives the first mounting shaft and a rotary disc 13 on the first mounting shaft to rotate through the bevel gear pair, the rotary disc 13 drives the cylindrical pin 16 to rotate, the cylindrical pin 16 drives the oscillating rod 15 to oscillate, the oscillating rod 15 drives the mounting sleeve 2 and the cleaning brush 20 to oscillate back and forth, accordingly, sundries blocked by the filter screen 1 are swept to the sides of the two sides, and the sundries are prevented from being accumulated on the filter screen 1;
the salvaging component comprises a salvaging net frame 5 and a lifting mechanism for driving the salvaging net frame 5 to lift, the lifting mechanism comprises a reciprocating screw rod 11, a rotating mechanism for driving the reciprocating screw rod 11 to rotate and an internal thread sleeve 17, the reciprocating screw rod 11 is rotatably arranged on the side edge of a river channel through a second mounting plate 9, the rotating mechanism comprises a second propeller blade 10 and a second bevel gear pair 19, the second propeller blade 10 is rotatably arranged on the side edge of the river channel through a third mounting shaft, the third mounting shaft is in driving connection with the reciprocating screw rod 11 through the second bevel gear pair 19, the internal thread sleeve 17 is in threaded sleeving connection with the reciprocating screw rod 11, the internal thread sleeve 17 is in sliding connection with the side edge of the river channel, in the embodiment, a sliding block 8 is fixedly arranged on the internal thread sleeve 17, a sliding groove for the sliding block 8 is formed in the side edge of the river channel, and, the side wall of the salvaging net frame 5 is contacted and jointed with the side edge of the river channel, furthermore, a straight gear 6 is fixedly arranged on the fourth mounting shaft, the top of the river channel is fixedly provided with a rack 7 meshed with a straight gear 6, river water continuously impacts a second propeller blade 10, the second propeller blade 10 drives a third mounting shaft to rotate, the third mounting shaft drives a reciprocating screw rod 11 to rotate through a second bevel gear pair 19, the reciprocating screw rod 11 drives an internal thread sleeve 17 to reciprocate up and down, the internal thread sleeve 17 drives a fourth mounting shaft and a fishing net frame 5 on the fourth mounting shaft to move up and down, and when the fishing net frame 5 moves up to the top of the river channel, because gear and rack 7 meshing to drive fourth installation axle and salvage the net frame 5 and rotate, thereby make salvage net frame 5 to the bank rotation, fall debris in it on the bank automatically, do not need the manual work to salvage, it is safe high-efficient more, work efficiency is high.
Example 2
A river sewage treatment system comprising the river sewage treatment device of embodiment 1.
The working principle of the invention is as follows: when water in a river channel flows, the first propeller blade 4 and the second mounting shaft are driven to rotate, the second mounting shaft drives the first mounting shaft and the rotary table 13 on the first mounting shaft to rotate through a bevel gear pair, the rotary table 13 drives the cylindrical pin 16 to rotate, the cylindrical pin 16 drives the swinging rod 15 to swing, the swinging rod 15 drives the mounting sleeve 2 and the cleaning brush 20 to swing in a reciprocating mode, so that sundries blocked by the filter screen 1 are swept to two sides of a bank, the situation that the sundries are accumulated on the bank side and affect the filtering efficiency of the filter screen 1 is avoided, river water continuously impacts the second propeller blade 10, the second propeller blade 10 drives the third mounting shaft to rotate, the third mounting shaft drives the reciprocating screw rod 11 to rotate through a second bevel gear pair 19, the reciprocating screw rod 11 drives the internal thread sleeve 17 to move up and down in a reciprocating mode, the internal thread sleeve 17 drives the fourth mounting shaft and the fishing net frame 5 on the fourth, because gear and rack 7 meshing to drive fourth installation axle and salvage the net frame 5 and rotate, thereby make salvage net frame 5 to the bank rotation, fall debris in it on the bank automatically, do not need the manual work to salvage, it is safe high-efficient more, work efficiency is high.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a river course sewage treatment plant, includes filter screen (1) that is used for filtering river face debris, its characterized in that, still including the clearance unit of clearance debris, filter screen (1) fixed mounting just is the arc setting in the river course, the clearance unit is including cleaning the subassembly and being used for carrying the salvage subassembly of debris to the bank, clean the subassembly including cleaning brush (20) and be used for driving the actuating mechanism of cleaning brush (20) motion, actuating mechanism installs on first mounting panel (12), first mounting panel (12) fixed mounting is in the river course, actuating mechanism includes carousel (13), is used for driving carousel (13) pivoted power component and swinging arms (15), carousel (13) are installed on first mounting panel (12) through first installation axle rotation, carousel (13) top cooperation is connected with swinging arms (15), the one end that filter screen (1) was kept away from in swinging arms (15) is articulated with first mounting panel (12), and cleaning brush (20) are installed to the one end that swinging arms (15) are close to filter screen (1), the terminal surface outer lane fixed mounting that carousel (13) are close to swinging arms (15) has cylindric lock (16), seted up on swinging arms (15) and supply cylindric lock (16) to insert and gliding logical groove (18), salvage the subassembly including salvage net frame (5) and be used for driving the elevating system who salvages net frame (5) and go up and down.
2. The river sewage treatment device according to claim 1, wherein a limit pin is arranged at the end of the cylindrical pin (16) far away from the rotary disc (13).
3. The river sewage treatment device according to claim 1, wherein the power component comprises a first propeller blade (4) and a first bevel gear pair (14), the first propeller blade (4) is rotatably mounted on the first mounting plate (12) underwater through a second mounting shaft, and the second mounting shaft is in driving connection with the first mounting shaft through the first bevel gear pair (14).
4. The river sewage treatment device according to claim 1, wherein an end of the swing rod (15) close to the filter screen (1) is sleeved with a mounting sleeve (2), a spring (3) is fixedly connected between the end of the swing rod (15) and the mounting sleeve (2), and a cleaning brush (20) is detachably mounted at the end of the mounting sleeve (2) close to the filter screen (1).
5. The river sewage treatment device according to any one of claims 1 to 4, wherein the lifting mechanism comprises a reciprocating screw rod (11), a rotating mechanism for driving the reciprocating screw rod (11) to rotate, and an internal thread sleeve (17), the reciprocating screw rod (11) is rotatably installed on the side of the river through a second installation plate (9), the internal thread sleeve (17) is sleeved on the reciprocating screw rod (11) in a threaded manner, the internal thread sleeve (17) is slidably connected with the side of the river, the fishing net frame (5) is rotatably installed on the side wall of the internal thread sleeve (17) through a fourth installation shaft, the side wall of the fishing net frame (5) is contacted and attached with the side of the river, a straight gear (6) is fixedly installed on the fourth installation shaft, and a rack (7) meshed with the straight gear (6) is fixedly installed at the top of the river.
6. The river sewage treatment device according to claim 5, wherein the rotating mechanism comprises a second propeller blade (10) and a second bevel gear pair (19), the second propeller blade (10) is rotatably mounted on the side of the river through a third mounting shaft, and the third mounting shaft is in driving connection with the reciprocating screw rod (11) through the second bevel gear pair (19).
7. The river sewage treatment device according to claim 5, wherein a sliding block (8) is fixedly mounted on the internal thread sleeve (17), and a sliding groove for the sliding block (8) to slide is formed in the side edge of the river.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136528.7A CN111318062B (en) | 2020-03-02 | 2020-03-02 | River sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136528.7A CN111318062B (en) | 2020-03-02 | 2020-03-02 | River sewage treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111318062A true CN111318062A (en) | 2020-06-23 |
| CN111318062B CN111318062B (en) | 2021-11-30 |
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ID=71173018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010136528.7A Active CN111318062B (en) | 2020-03-02 | 2020-03-02 | River sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111318062B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749219A (en) * | 2020-07-07 | 2020-10-09 | 周兵 | Miniature floater fishing device in river course |
| CN111888836A (en) * | 2020-09-10 | 2020-11-06 | 台嘉成都玻纤有限公司 | Side filtering system for filtering impurities in water |
| CN112127403A (en) * | 2020-09-20 | 2020-12-25 | 国网湖北省电力有限公司电力科学研究院 | Dredging device for hydraulic engineering |
| CN113833093A (en) * | 2021-09-27 | 2021-12-24 | 宁波联兴市政园林工程有限公司 | Sewage interception, storage and drainage system and drainage control method thereof |
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| CN203264379U (en) * | 2013-05-31 | 2013-11-06 | 江苏兆盛环保集团有限公司 | Gathering-type solid-liquid separator |
| CN208293535U (en) * | 2018-04-09 | 2018-12-28 | 江苏洁源环保科技有限公司 | A kind of garbage filtering device for hydraulic engineering |
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| CN109851076A (en) * | 2018-12-28 | 2019-06-07 | 安徽世绿环保科技有限公司 | A kind of sewage treatment effective filter |
| CN110725291A (en) * | 2019-09-18 | 2020-01-24 | 国家电网有限公司 | Automatic cleaning device of power station reservoir rubbish |
| CN210049216U (en) * | 2019-04-02 | 2020-02-11 | 上海新园林实业有限公司 | A intercepting device for administering water surface floating pollutant in river course |
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Patent Citations (6)
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| CN203264379U (en) * | 2013-05-31 | 2013-11-06 | 江苏兆盛环保集团有限公司 | Gathering-type solid-liquid separator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749219A (en) * | 2020-07-07 | 2020-10-09 | 周兵 | Miniature floater fishing device in river course |
| CN111888836A (en) * | 2020-09-10 | 2020-11-06 | 台嘉成都玻纤有限公司 | Side filtering system for filtering impurities in water |
| CN111888836B (en) * | 2020-09-10 | 2023-08-15 | 台嘉成都玻纤有限公司 | Side filtering system for filtering impurities in water |
| CN112127403A (en) * | 2020-09-20 | 2020-12-25 | 国网湖北省电力有限公司电力科学研究院 | Dredging device for hydraulic engineering |
| CN113833093A (en) * | 2021-09-27 | 2021-12-24 | 宁波联兴市政园林工程有限公司 | Sewage interception, storage and drainage system and drainage control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111318062B (en) | 2021-11-30 |
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