CN106362451B - A kind of detention tank and its operating method with inside and outside nested bellows group - Google Patents
A kind of detention tank and its operating method with inside and outside nested bellows group Download PDFInfo
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- CN106362451B CN106362451B CN201610964624.4A CN201610964624A CN106362451B CN 106362451 B CN106362451 B CN 106362451B CN 201610964624 A CN201610964624 A CN 201610964624A CN 106362451 B CN106362451 B CN 106362451B
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- 238000011017 operating method Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims description 30
- 239000010802 sludge Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 230000037303 wrinkles Effects 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 abstract description 15
- 230000033001 locomotion Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005189 flocculation Methods 0.000 abstract description 6
- 230000016615 flocculation Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 16
- 230000001376 precipitating effect Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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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- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A kind of detention tank and its operating method with inside and outside nested bellows group are pond body to be divided into a series of very long shallow pond beds of precipitation of length using bellows nested inside and outside one group raw water is made to generate shallow pond precipitation；Simultaneously using the Bernoulli effect of fluid, stable whirlpool, the Involving velocity of whirlpool are generated in the fin rearward recess of lumpy ripple struction, the non-fluid substance in raw water is made to gather in vortex core, constantly contact, collision, bonding, flocculation reaction occurs, is finally settled with big mass particle.Reach suspended material in removal raw water, clean the purpose of water body.Actuator drives cylinder is rotated with relatively low linear velocity, and sediment is promoted to be moved down along barrel slip, falls into bottom of pond, sticks, gather so as to be generated in cylinder, clogging.When safeguarding, by quick rotation shaft, while stir cylinder with shifting fork mechanism and make axial side-to-side movement, form the shear flow of strong turbulence, you can high speed souring is caused to cylinder, remove possible siltation, block it is very convenient.
Description
Technical field
The present invention relates to a kind of precipitation processes that can accelerate in sewage disposal, clarify water body, improve wastewater treatment efficiency
A kind of detention tank and its operating method with inside and outside nested bellows group, belong to sewage treatment field.
Background technology
In recent years, China's rapid economic development, urban wastewater discharge continue to increase, and Urban Water Environment is by serious dirt
Dye, effluent problem has been one severe environmental protection of China and economic problems.Due to cost of sewage disposal height, financial input is difficult
Think after so that wastewater treatment in China rate is very low, and the cost and treatment effeciency of sewage disposal greatly restrict sewage disposal industry
Development.Therefore, research and development cost is low, and speed is fast, efficient sewage treatment technique, new equipment are sewage disposal industry
Developing direction.
Sedimentation basin is the processing structures for being removed the big suspended particulate of density ratio water from water using gravitational settling effect,
It is one of most widely used processing unit in sewage disposal, for sewage disposal, the post processing of biological treatment and depth
The processes such as reason.But not only the time is very long for natural sedimentation, and usual water body is also there are thick and heavy precipitation blocking zone, and suspended matter is more, water body
Chaos, so, the shortcomings such as static sedimentation pond takes up a large area, and basin's effective volume is small, and spoil disposal is difficult, and treatment effeciency is low.People should
When making full use of natural sedimentation, shorten its precipitation purification time, improve purifying rate.
Inclined tube or inclined plate are the most extensive and ripe settlers that developed on shallow pool theory, extensively
It is general to be applied in sedimentation pond for water treatment.In the settling zone of sedimentation basin, inclined parallel pipe or parallelpiped are utilized（It sometimes can profit
With honeycomb filler）By water segmentation into a series of shallow layer precipitating layers, the heavy mud of processed water body and sedimentation is in each precipitation shallow-layer
It mutually moves and detaches.Inclined-tube sedimentation tank has many advantages, such as that desilting area is big, and deposition efficiency is high, the sedimentation time is short, occupation of land is few, is
A kind of High-efficiency precipitation equipment is widely used in Small Town Wastewater treatment plant.But when water body solid loading is excessive, treatment effect
Less stable；The ability of anti impulsion load is also poor.Especially the serious is its inclined plates（Pipe）Easily occur sludge stick, block and
Algae multiplies phenomenon, brings difficulty to maintenance management work, which greatly limits its use scopes.
Invention content
The not strong and traditional inclined plate of adaptability is changed to water impact load and water temperature in order to solve traditional inclined-tube sedimentation tank
（Pipe）The defects of sludge sticks, blocks, influence sedimentation effect easily occurs, the present invention utilizes fluid motion characteristics, comprehensive shallow pond
Theoretical, dynamic coagulation principle and inclined plate technology, change traditional inclined plate（Pipe）Stationary state：
(1) Flowing Sewage is divided into a series of shallow layer precipitatings using ripple socket nested, equidistant arrangement inside and outside one group
The heavy mud of pond, processed water body and sedimentation is mutually moved and is detached in each shallow layer precipitating pond；
(2) utilize fluid after barrier simultaneously or recess forms the Bernoulli effect of high speed rotation whirlpool, wave rises
The ripple struction of volt makes sewage generate stable whirlpool in fin rearward recess.It is non-in raw water under the Involving velocity of whirlpool
Flowing material gathers swirl center, constantly contacts, collides in vortex core, and flocculation reaction occurs for bonding.Flco is through rotating fluid
Squeezing action repeatedly, quality and size are increasing, finally with big mass particle settle.So as to reach in removal raw water
Suspended material cleans the purpose of water body.
The equidistant nested barrel of multilayer and with periodic arrangement ripple (annular groove) structure on each barrel, shallow pond is made to sink
It forms sediment, the progress of whirlpool flocculation reaction process iterative cycles, constantly from water body Precipitation, purification efficiency carries suspended material significantly
It is high.
Actuator drives cylinder is rotated with low linear velocity in sedimentation basin.The cylinder of rotation promotes sediment in gravity
It is moved down under effect along barrel slip, finally falls into bottom of pond from the grooving on barrel, sink to sludge hopper, so as to be generated in cylinder
Stick, gather, clogging.
Since cylinder can be rotated with shaft.By quick rotation shaft, while stir cylinder with shifting fork mechanism and make axially
Side-to-side movement forms the shear flow of strong turbulence, you can high speed souring is caused to cylinder, removes possible siltation, blocking
It is very convenient.
The technical solution adopted by the present invention to solve the technical problems：
A kind of detention tank and its operating method with inside and outside nested bellows group, it is characterized in that：Sedimentation basin is horizontal
Arrangement, section semicircular in shape, bottom of pond have certain gradient, and one end is high, and one end is low, are tilted to the sludge hopper of water inlet end bottom；One
Isometric, the diameter etc. of group；Diameter is ascending, and the equal cylindrical bellows of mutual diameter difference, size is mutually nested,
One concentric shafts cylinder group of composition arranged in parallel from inside to outside, is fixed on the sleeve in axial location；The cylinder ripple
Manage the housing for the cylinder-shaped thin wall wrinkle with multiple transverse waves；The cylinder bellows quantity is no less than 3；It is described
The axis of cylindrical bellows must be overlapped with the axis of sleeve, form concentric co-axial structure；It is described cylinder capsule with
The axis of sleeve is parallel, and the clearance layer between cylindrical bellows is parallel with the axis of sleeve；The cylinder bellows is same
The grooving through overall length of circumferentially-spaced 180 ° or 120 ° is cut on busbar；Sleeve is sleeved in shaft, by key connecting or
Person's Profile Connection is circumferentially fixed；The length of sleeve and bellows group at least short 50CM longer than pond, sleeve one end is provided with fork slot；It pulls out
Fork is housed in fork pockets；Shifting fork mechanism is fixed in pond body；Sleeve and bellows group can be under the stirring of fork along shaft axis
It is moved axially in Xiang Chi；Shaft is horizontally arranged on the bearing at semicircle sedimentation basin both ends；One end connection of the shaft
Transmission device；Full of sewage in sedimentation basin, flow flows in sedimentation basin along the axial direction of shaft, flows into and precipitates from shaft one end
Sedimentation basin by the gap of cylindrical bellows group, is flowed out in pond from other end；During work, actuator drives rotating cylinder is with low
Linear velocity rotated in sedimentation basin.Serial shallow layer precipitating pond precipitation that sewage is formed by the gap of cylindrical bellows group and
Purified by the whirlpool of the fin rearward recess of bellows, suspended matter is moved down along rotation barrel slip from water body Precipitation, finally from
Grooving on barrel falls into bottom of pond, sinks to sludge hopper；In cycles；When safeguarding, transmission device improves rotating speed, quick rotation shaft
And drum body, while reciprocally swinging shifting fork mechanism, sleeve and drum body is pulled to make left and right axial movement, forms cutting for strong turbulence
Cut stream, you can cause high speed souring to drum body, remove possible siltation, block it is very convenient.
The invention has the advantages that increasing substantially the desilting area of unit occupied area, Precipitation Potential is strong, during precipitation
Between shorten；Precipitation blocking zone is eliminated, improves clarifying effect, water outlet ss suspended solid substantially reduces, and water body is made a clear distinction between good and evil；Hydraulics
Good, deposition efficiency is high；Greatly improve pond body surface loading；Reduce floor space；Not deposition does not block, and removes product and becomes silted up conveniently, gram
Traditional inclined plate is taken（Pipe）The easy blockage problem of sedimentation, expands inclined plate（Pipe）The use scope of sedimentation.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the longitudinal sectional view of the present invention.
Fig. 2 is the transverse sectional view of the present invention.
Fig. 3 is the schematic diagram of circumferentially-spaced 180 ° of grooving structure in the cylindrical bellows group and its cylinder of the present invention.
In figure：1. 2. sewage of pond body, 3. intake chamber 4. floods 5. effluent weir of hole, 6. effluent trough
7. water-supply-pipe 8., which precipitates dirt 9., stores 10. sludge pipe of bucket, 11. pedestal
12. 15. sleeve of shaft 13. ripple roller, 14. transmission device, 16. fork slot
17. 20. grooving of fork 18. shifting fork mechanism, 19. rolling stand, 21. positioning pin
22. the cylindrical bellows of 23. key of keyway 24.
25. 26. groove of fin.
Specific embodiment
In the illustrated embodiment of Fig. 1,2,3, sedimentation basin of the invention (1) is horizontally disposed, and section semicircular in shape, bottom of pond has one
Fixed gradient, water outlet one end is high, and water inlet one end is low；Water inlet one end is provided with sludge hopper (9)；One group isometric, diameter
It differs in size；Diameter is ascending, and the equal cylindrical bellows (24) of mutual diameter difference, size is mutually nested, from inside to outside
One concentric drums group (13) of composition arranged in parallel, is fixed on the sleeve in axial location (15)；The cylinder bellows
(24) it is the housing of the cylinder-shaped thin wall wrinkle with multiple transverse waves；Described cylinder bellows (24) quantity is 4；Institute
Stating the axis of cylindrical bellows (24) must overlap with the axis of sleeve (15), form concentric co-axial structure；The cylinder
Bellows (24) cuts circumferentially-spaced 180 ° or 120 ° of the grooving (20) through overall length on busbar in the same direction；Sleeve (15)
It is sleeved in shaft (12), circumferentially fixed by key (23) connection, the length of sleeve (15) and bellows group (13) is longer than pond (1) extremely
Few short 50CM, sleeve (15) one end is provided with fork slot (16)；Fork (17) is housed in fork slot (16)；Shifting fork mechanism (18) is fixed
In pond body (1)；Sleeve (15) and bellows group (13) can be axial in pond (1) along shaft (12) under the stirring of fork (17)
It is interior to make left and right axial movement；Shaft (12) is horizontally arranged on the bearing (11) at semicircle sedimentation basin (1) both ends；The shaft
(12) one end connection transmission device (14)；Sewage (2) is flowed into from the hole (4) of flooding of intake chamber (3) on the right side of pond body (1), and edge turns
Axis (12) it is axial to left movement, the serial shallow layer precipitating pond precipitation formed by the gap of cylindrical bellows group (13) and by
Whirlpool purification after fin (25) groove (26) of bellows, overflows from the effluent weir (5) in left side, into effluent trough (6), then by
Water-supply-pipe (7) is defeated to subsequent processing.
The sewage (2) flowed into from water inlet, the series length that stream is formed into cylindrical bellows group (13) gap respectively
The sediment of very long shallow layer precipitating pond, processed water body and sedimentation mutual stable motion and detaches in shallow-layer is precipitated.
Due to the Bernoulli effect of fluid, lumpy ripple struction makes raw water be produced in fin (25) rearward recess (26)
Raw stable whirlpool.Under the Involving velocity of whirlpool, the non-fluid substance in raw water gathers swirl center, in vortex core constantly
Flocculation reaction occurs for contact, collision, bonding.Repeatedly squeezing action of the flco through rotating fluid, quality and size are increasingly
Greatly, it is finally settled with big mass particle.So the cylinder-shaped thin wall wrinkle of transverse wave form 360 ° of ring whirls wadding
Solidifying microreactor.Flocculation reaction is most abundant when micro-vortex scale is close or equal with alumina blossom particles scale, and flocculating effect is best；
Vortex quantity is more, and voorticity is bigger, and dirt separation must be more thorough, and alumen ustum is also more closely knit.
Arc-shaped siding also limits the direction of motion of fluid, and there is the moving particle with axially distinct component velocity to exist
Left and right direction or the collision of fin (25) siding.Since the boundary layer viscosity near solid wall surface is big, lost after moving particle collision
Speed, then stall again is collided, last movement velocity is reduced to zero, exhausts energy on solid-liquid boundary, precipitates or be adhered to siding
On.Solid-liquid borderline region is the main region that precipitation is accelerated to be formed.
The fluctuating ripple struction of periodic arrangement carries out flocculation reaction process iterative cycles, and suspended material is continuous in raw water
Ground is removed, and sedimentation separation is thorough, and purification efficiency greatly improves.
During work, positioning pin (21) on sleeve (15) is inserted into pin hole, transmission device (14) driving cylinder (13) is with low
Linear velocity rotates in sedimentation basin (1).The cylinder (13) of rotation promotes sediment (8) to be slided down under the effect of gravity along barrel
It moves, finally falls into bottom of pond from the grooving (20) on barrel, sink to sludge hopper (9), stick, gather so as to be generated in cylinder,
Clogging.
When safeguarding, first shut down；Positioning pin (21) on sleeve (15) is extracted；Then transmission device (14) improves rotating speed, soon
Fast rotational sleeve (15) and drum body (13), while reciprocally swinging shifting fork mechanism (18) pull sleeve (15) and rotating cylinder (13) body
Make left and right axial movement along shaft (12), form the shear flow of strong turbulence, you can high speed souring is caused to drum body, clearly
Except it is possible siltation, block it is very convenient.
Claims (1)
1. a kind of detention tank with inside and outside nested bellows group, it is characterized in that：Sedimentation basin is horizontally disposed, and section is in semicircle
Shape, bottom of pond have certain gradient, and one end is high, and one end is low, are tilted to the sludge hopper of water inlet end bottom；One group isometric, and diameter is big
It is small etc.；Diameter is ascending, and the equal cylindrical bellows of mutual diameter difference, size is mutually nested, from inside to outside parallel
Row form a concentric shafts cylinder group, are fixed on the sleeve in axial location；The cylinder bellows is with multiple horizontal strokes
To the housing of the cylinder-shaped thin wall wrinkle of ripple；The cylinder bellows quantity is no less than 3；The cylinder bellows
Axis must be overlapped with the axis of sleeve, form concentric co-axial structure；The cylinder capsule is parallel with the axis of sleeve,
Clearance layer between cylindrical bellows is parallel with the axis of sleeve；The cylinder bellows cuts circumferential on busbar in the same direction
The grooving through overall length at 180 ° or 120 ° of interval；Sleeve is sleeved in shaft, circumferentially solid by key connecting or Profile Connection
It is fixed；The length of sleeve and bellows group at least short 50CM longer than pond, sleeve one end is provided with fork slot；Fork is housed in fork slot；
Shifting fork mechanism is fixed in pond body；Sleeve and bellows group can make axial move along shaft is axial under the stirring of fork in pond
It is dynamic；Shaft is horizontally arranged on the bearing at semicircle sedimentation basin both ends；One end connection transmission device of the shaft；Flow is heavy
It is flowed in the pond of shallow lake along the axial direction of shaft, sedimentation basin is flowed into from shaft one end, by the gap of cylindrical bellows group, from other one
End outflow sedimentation basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964624.4A CN106362451B (en) | 2016-10-28 | 2016-10-28 | A kind of detention tank and its operating method with inside and outside nested bellows group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964624.4A CN106362451B (en) | 2016-10-28 | 2016-10-28 | A kind of detention tank and its operating method with inside and outside nested bellows group |
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| Publication Number | Publication Date |
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| CN106362451A CN106362451A (en) | 2017-02-01 |
| CN106362451B true CN106362451B (en) | 2018-06-29 |
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| CN201610964624.4A Expired - Fee Related CN106362451B (en) | 2016-10-28 | 2016-10-28 | A kind of detention tank and its operating method with inside and outside nested bellows group |
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| CN107012196A (en) * | 2017-05-15 | 2017-08-04 | 中国水利水电科学研究院 | Microorganism hydrodynamics experimental method under the conditions of cyclical level shear flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06248629A (en) * | 1993-02-23 | 1994-09-06 | Mitsui Constr Co Ltd | Floating sedimentation device |
| JP2005046786A (en) * | 2003-07-31 | 2005-02-24 | Nishihara Environment Technology Inc | Flocculation and sedimentation apparatus |
| WO2010101316A1 (en) * | 2009-03-04 | 2010-09-10 | 주식회사 에코다임 | Horizontal sedimentation system with media |
| CN103100241A (en) * | 2012-12-03 | 2013-05-15 | 韦志锋 | Eccentric-type arc-shaped movable slant board |
| CN106006892A (en) * | 2016-07-01 | 2016-10-12 | 河海大学 | Micro-vortex flocculation device |
-
2016
- 2016-10-28 CN CN201610964624.4A patent/CN106362451B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06248629A (en) * | 1993-02-23 | 1994-09-06 | Mitsui Constr Co Ltd | Floating sedimentation device |
| JP2005046786A (en) * | 2003-07-31 | 2005-02-24 | Nishihara Environment Technology Inc | Flocculation and sedimentation apparatus |
| WO2010101316A1 (en) * | 2009-03-04 | 2010-09-10 | 주식회사 에코다임 | Horizontal sedimentation system with media |
| CN103100241A (en) * | 2012-12-03 | 2013-05-15 | 韦志锋 | Eccentric-type arc-shaped movable slant board |
| CN106006892A (en) * | 2016-07-01 | 2016-10-12 | 河海大学 | Micro-vortex flocculation device |
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Effective date of registration: 20180926 Address after: No. 20, East Road, University City, Chongqing, Shapingba District, Chongqing Patentee after: Chongqing University of Science & Technology Address before: 400042 No. 1, petroleum Road, Yuzhong District, Chongqing Patentee before: Wei Zhifeng |
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