CN106337405A - Method for automatically removing watercourse trash - Google Patents
Method for automatically removing watercourse trash Download PDFInfo
- Publication number
- CN106337405A CN106337405A CN201610836379.9A CN201610836379A CN106337405A CN 106337405 A CN106337405 A CN 106337405A CN 201610836379 A CN201610836379 A CN 201610836379A CN 106337405 A CN106337405 A CN 106337405A
- Authority
- CN
- China
- Prior art keywords
- fence
- river
- panel
- vertical bar
- bar shape
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Revetment (AREA)
Abstract
The invention relates to a method for automatically removing water course trash. The method mainly comprises establishment of three subsystem modules including a draining mechanism, a collecting mechanism and a control mechanism. The control mechanism is composed of a lifting control system and a direction control system. The lifting control system controls a portable fence panel to ascend and descend integrally according to the water level change. The direction control system controls the opening degree of a vertical strip-shaped fence. According to the method, the problem that currently, floating objects on the river need to be fished manually is solved, and especially, the problems that due to the fact that the trash such as the floating objects are deposited or attached to plants or the shore after a flood, the landscape effect is severely affected, and time and labor are wasted for cleaning are solved.
Description
Technical field
The present invention relates to a kind of method of cleaning rubbish, the method for more particularly to a kind of automatic cleaning river garbage.
Background technology
Water is the blood vessels in a city, can moisten life, mould city makings moreover it is possible to reflect the health degree in city.Mesh
Before, the stage having to administer has been arrived in China's river pollution, and particularly surrounding city water quality of river is subject to resident living dirty
The factors such as water, industrial wastewater discharge, agricultural production point pollution of area source, municipal refuse abandoned channel affect, and cause city river tight
Lose ecological functions again.Wherein being significantly increased of river course two sides rubbish, not only can polluted-water, and affect flood control works face
Looks.In addition, with the flowing of river, these rubbish can be brought to the every nook and cranny in river course, bring great inconvenience for cleaning.
When especially the water yield increases, a lot of rubbish can be hung on water plant, and if things go on like this, a large amount of water plants can therefore wither extremely
Die, on the one hand waste resource, on the other hand create new rubbish again, exacerbate the black smelly phenomenon in river course.
Currently for the garbage-cleaning problem in river course, mainly pass through artificial salvaging, anti-pollution vessel cleaning and setting rubbish
Rubbish clears up this several measure of facility.But artificial salvaging and anti-pollution vessel are required for manpower and are cleared up, and waste time and energy.And mesh
Front garbage-cleaning facility function is all more single, and operational efficiency is poor.
Content of the invention
The purpose of the present invention is the problems referred to above for the cleaning of current river garbage, a kind of proposition collection riverway waste collection,
The Full-automatic river way garbage-cleaning method that the multi-functionals such as flood control are integrated.
For achieving the above object, the invention provides a kind of method of automatic cleaning river garbage, methods described include as
Lower step:
A, structure drainage mechanism, described drainage mechanism is that row's l type filters the portable fence panel that fence is constituted, described work
Moving grid hurdle panel includes the stick protruding setting along inverse river direction of the vertical bar shape fence of bottom, upper end, builds described drain
The portable fence panel of different size is selected all to cover river cross-section according to river width and the depth of water after mechanism；
B, structure heading control loop, install, along with streamflow orthogonal direction, the company of rotation on described vertical bar shape fence top
Spindle, and by the first rotating connector, described rotation connecting shaft is connected with each vertical bar shape fence top；
C, structure lift control system, by hinge axis along being fixed on the bottom with current orthogonal direction, described hinge axis pass through
Second rotating connector is connected with each vertical bar shape fence bottom, afterwards hydraulic cylinder is arranged on described portable fence panel
The bottom at the back side, and be connected with described portable fence panel back by hinge waterpower bar；
D, structure collecting mechanism, install the soft net of funnel-form after described portable fence upper panel；
E, buoy is set in the water surface, and described buoy is connected with the controller of described hydraulic cylinder by cable；
F, pass through afterwards to control the described folding angle rotating and connecting vertical bar shape fence described in axial adjustment, and by buoy and
Hydraulic cylinder adjusts the lifting position of described portable fence panel, starts the collection of river garbage afterwards；
G, according to water quality of river and rubbish quantity situation, periodically dismantled and transported rubbish to described soft net, afterwards
Again described soft net is repeated to install and use.
Preferably, described step a, step b, step c, the vertical bar shape fence in step f are vertically arranged louvered grid
Hurdle.
Preferably, described step a, step b, step c, the material of vertical bar shape fence in step f be fiberglass, plastics or
Rustless steel.
Preferably, described step d, the soft online end in step g are fixed on described portable fence panel top, and lower end is fixed
Under water on the described portable fence panel of the water surface 0.2～0.5m, and laterally on described portable fence panel every 0.5～
1m arranges a fixing point.
Preferably, described step d, the mesh diameter of soft net in step g are 2～5cm, and material is plastics or nylon.
Preferably, lift control system described in step c passes through hydraulic cylinder described in remotely control, and is visited according to described buoy
The water level height surveyed adjusts the position of described portable fence panel.
Based on technique scheme, the invention has the advantage that
The present invention is directed to the difficult problem of current river garbage cleaning it is proposed that a kind of method of automatic cleaning river garbage,
Methods described not only solves floating thing on current river surface to be needed to rely on the artificial difficult problem salvaged, and floats after particularly solving flood
The rubbish such as float deposit or are attached on plant or bank, have a strong impact on landscape effect and the problems such as clear up of wasting time and energy.This
The method of bright automatic cleaning river garbage can regulate and control fence folding according to practical situation, plays the work of flood control and deceleration current
With, thus reducing the erosion to riverbank for the current, and ensure flood control safety, and remotely control achieve can according to flood, current and
The parameters such as rubbish situation real-time adjustment angle, opening degree, height, improve refuse collection efficiency.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the river garbage cleaning plant side structure schematic diagram being built using this method；
Fig. 2 is the river garbage cleaning plant positive structure schematic being built using this method；
Wherein, 1～stick；2～rotate connecting shaft；3～buoy；4～soft net；5～the first rotating connectors；6～vertical bar
Shape fence；7～hinge axis；8～hinge waterpower bar；9～hydraulic cylinder；10～the second rotating connectors.
Specific embodiment
Below by drawings and Examples, technical scheme is described in further detail.
The invention provides a kind of method of automatic cleaning river garbage, methods described mainly includes drainage mechanism, collection
Mechanism and the structure of controlling organization three subsystems module, wherein controlling organization is by lift control system and heading control loop
Composition, described lift control system controls described portable fence panel integral elevating, described direction controlling system according to SEA LEVEL VARIATION
System controls the folding size of described vertical bar shape fence 6.Specifically, the method for the present invention specifically includes following steps:
A, structure drainage mechanism, described drainage mechanism is that row's l type filters the portable fence panel that fence is constituted, described work
Moving grid hurdle panel includes the stick 1 protruding setting along inverse river direction of the vertical bar shape fence 6 of bottom, upper end.Pass in river course
Key bleeding point, such as: each inflow entrance, the bend position in river, rubbish weight calamity point etc. builds drainage mechanism, builds described drain
The portable fence panel of different size is selected all to cover river cross-section according to river width and the depth of water after mechanism.Simultaneously it should
Specification according to vertical bar shape fence 6 configures the connection member of dimension.
As shown in Figure 1 and Figure 2, described portable fence lower panels are the vertical bar shape fence 6 of louvered folding, and upper end is edge
The rectangle stick 1 that inverse river direction projects.The stick 1 that wherein said portable fence upper panel protrudes is not with vertical bar shape fence
6 folding and rotate, the material of described vertical bar shape fence 6 can be selected for water-fast wet, intensity is high, free of contamination material, preferably glass
Glass steel, plastics or rustless steel etc..The acting as of the prominent rectangle stick 1 in described vertical bar shape fence 6 top: prevent river garbage
Because the splash rubbish that leads to of current is skipped described vertical bar shape fence 6 and entered the situation in downstream it is ensured that refuse collection effect.Typically
In the case of, the vertical bar shape fence 6 of described portable fence lower panels is in half-open position, plays guiding current, reduces flow velocity, resistance
Every the effect of bulky refuse, prevent flow velocity cross senior general's bulky refuse rush in described soft net 4 produce impact lead to described soft net 4 quilt
Destroy.In addition, the racetrack portion in river arranges this device, can effectively reduce flow velocity, thus reducing the erosion to riverbank for the current,
Play protection riverbank, prevent erosion, keep the ecological effect in riverbank.
B, structure heading control loop, install on described vertical bar shape fence 6 top edge and streamflow orthogonal direction and rotate
Connecting shaft 2, and by the first rotating connector 5, described rotation connecting shaft 2 is connected with each vertical bar shape fence 6 top,
Guarantee folding that is seamless and not affecting respective fence between adjacent fence during described vertical bar shape fence 6 closure.
Specifically, described heading control loop is by rotating connecting shaft 2 and the first rotating connector 5 forms.Described first turn
Follower link 5 is located at described rotation connecting shaft 2, and is flexibly connected with the top of each vertical bar shape fence 6.Described rotation connecting shaft
2 can be controlled so as to there is turn to the first rotating connector 5, thus what adjustment was connected with described first rotating connector
The folding degree of vertical bar shape fence 6, so that described vertical bar shape fence 6 can be fully rotated into closing by opening completely, plays adjustment
Drain intensity and the effect of flood control and disaster relief, and remote operation can be realized, improve refuse collection efficiency.
In the case of necessary, can rotate, by adjusting, the folding degree that connecting shaft 2 adjusts vertical bar shape fence 6, adapt to not
Same condition, reaches different application targets.For example run into the situation that the downstream water yield explodes, described vertical bar shape fence 6 can be closed
Close, serve as interim dam, stop the current of upstream from continuing flow further downstream, play the purpose of flood disaster prevention and reduction.
C, structure lift control system, hinge axis 7 are fixed on the bottom along with current orthogonal direction, described hinge axis 7 lead to
Cross the second rotating connector 10 to be connected with each vertical bar shape fence 6 bottom.Afterwards hydraulic cylinder 9 is arranged on described activity grid
The bottom of hurdle back side of panel, and be connected with described portable fence panel back by hinge waterpower bar 8.
As shown in figure 1, wherein, described lift control system hydraulic cylinder 9, hinge axis 7 and hinge waterpower bar 8 form, described
Each vertical bar shape fence 6 of portable fence panel bottom is flexibly connected with described hinge axis 7 by the second rotating connector 10.
Hydraulic cylinder 9 is arranged on the river bed after portable fence panel, by described hinge waterpower bar 7 and described portable fence panel back
It is connected so that described hinge waterpower bar 7 can stretch up and down according to the water level height that buoy detects.Described hinge axis 7 are arranged on river
Bottom, plays fixing effect, and with the fan-shaped lifting of the flexible drive described portable fence panel of back side hydraulic cylinder 9, to adapt to not
The change of same time water level.
D, structure collecting mechanism, install the soft net of funnel-form 4 after described portable fence upper panel.Collecting mechanism is can be more
The soft net of funnel-form refuse collection 4 changing, mesh diameter is 2～5cm, and material can adopt plastics, nylon etc..Described soft net 4 upper end
It is fixed on described portable fence panel top, lower end is fixed under water on the described portable fence panel of the water surface 0.2～0.5m,
And laterally on described portable fence panel, one fixing point is set every 0.5～1m.Collecting mechanism is using river garbage
The feature of floating thing, carries out comprehensive filtration and collection to top layer garbage on water, then described in regular dismounting, cleaning concentrated by soft net 4,
So reuse or change, greatly improve refuse collection speed, save the input of personnel and fund.
E, the water surface arrange buoy 3, adjust to correct position up and down, and test signal it is ensured that buoy 3, hydraulic cylinder 9 and rise
The signal transmission of fall control system is normal and described buoy 3 is connected with the controller of described hydraulic cylinder 9 by cable.Described floating
Mark 3 is bubbled through the water column, and plays the effect of detecting water level.Meanwhile, described lift control system passes through hydraulic cylinder 9 described in remotely control,
Described remotely control can be realized by various communication networks, and adjusts described activity according to the water level height that described buoy 3 detects
The position of fence panel, is in the optimal collection position of river garbage all the time in order to described collecting mechanism.
F, pass through afterwards to control the described connecting shaft 2 that rotates to adjust the folding angle of described vertical bar shape fence 6, and pass through buoy
3 and hydraulic cylinder 9 adjust the lifting position of described portable fence panel to suitable location it is ensured that described soft net 4 can be by garbage on water
Comprehensive collection, starts the collection of river garbage afterwards.
G, according to water quality of river and rubbish quantity situation, periodically dismantled and transported rubbish to described soft net 4, afterwards
Again described soft net 4 is repeated to install and use.
The present invention proposes a kind of method of automatic cleaning river garbage, and its principle is as follows:
When rubbish flows through the device of said method structure with current, first passing around portable fence panel makes flow velocity drop
Low, and change the direction of a stream of water, so that current here is slightly stagnated, reduce bulky refuse and invade to the impact of system with to riverbank
Erosion.Bulky refuse is intercepted by portable fence panel, and remaining river garbage is flowed downstream and continued by the gap of vertical bar shape fence
Downstream drift about, fall after touching the soft net of funnel-form, stacked in soft sieve bottom.According to water quality of river situation, by certain
Time interval is dismantled and is transported rubbish to collecting soft net, repeats installation.Through after a period of time, soft net is carried out more
Change, it is to avoid soft net breakage or the problem blocking the refuse collection inefficiency leading to.
The present invention is directed to the difficult problem of current river garbage cleaning it is proposed that a kind of method of automatic cleaning river garbage,
Methods described not only solves floating thing on current river surface to be needed to rely on the artificial difficult problem salvaged, and floats after particularly solving flood
The rubbish such as float deposit or are attached on plant or bank, have a strong impact on landscape effect and the problems such as clear up of wasting time and energy.This
The method of bright automatic cleaning river garbage can regulate and control fence folding according to practical situation, plays the work of flood control and deceleration current
With, thus reducing the erosion to riverbank for the current, and ensure flood control safety, and remotely control achieve can according to flood, current and
The parameters such as rubbish situation real-time adjustment angle, opening degree, height, improve refuse collection efficiency.
Finally it should be noted that: above example is only not intended to limit in order to technical scheme to be described；To the greatest extent
Pipe has been described in detail to the present invention with reference to preferred embodiment, and those of ordinary skill in the art are it is understood that still
The specific embodiment of the present invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this
The spirit of bright technical scheme, it all should be covered in the middle of the technical scheme scope that the present invention is claimed.
Claims (6)
1. a kind of method of automatic cleaning river garbage it is characterised in that: methods described comprises the steps:
A, structure drainage mechanism, described drainage mechanism is that row's l type filters the portable fence panel that fence is constituted, described activity grid
Hurdle panel includes the stick (1) protruding setting along inverse river direction of vertical bar shape fence (6) of bottom, upper end, draws described in structure
The portable fence panel of different size is selected all to cover river cross-section according to river width and the depth of water after stream mechanism；
B, structure heading control loop, install, along with streamflow orthogonal direction, the company of rotation on described vertical bar shape fence (6) top
Spindle (2), and connecting shaft (2) and each vertical bar shape fence (6) top phase are rotated by described by the first rotating connector (5)
Connect；
C, structure lift control system, by hinge axis (7) along being fixed on the bottom with current orthogonal direction, described hinge axis (7) are led to
Cross the second rotating connector (10) to be connected with each vertical bar shape fence (6) bottom, afterwards hydraulic cylinder (9) is arranged on described
The bottom of portable fence back side of panel, and be connected with described portable fence panel back by hinge waterpower bar (8)；
D, structure collecting mechanism, install the soft net of funnel-form (4) after described portable fence upper panel；
E, in water surface setting buoy (3), and described buoy (3) is connected with the controller of described hydraulic cylinder (9) by cable；
F, afterwards pass through control described rotate connecting shaft (2) adjust described vertical bar shape fence (6) folding angle, and pass through buoy
(3) and hydraulic cylinder (9) adjust described portable fence panel lifting position, start the collection of river garbage afterwards；
G, according to water quality of river and rubbish quantity situation, periodically dismantled and transported rubbish to described soft net (4), afterwards again
Described soft net (4) is repeated to install and use.
2. method according to claim 1 it is characterised in that: the vertical bar in described step a, step b, step c, step f
Shape fence (6) is vertically arranged louvered fence.
3. method according to claim 2 it is characterised in that: the vertical bar in described step a, step b, step c, step f
The material of shape fence (6) is fiberglass, plastics or rustless steel.
4. method according to claim 1 it is characterised in that: soft net (4) upper end in described step d, step g is fixed on
Described portable fence panel top, lower end is fixed under water on the described portable fence panel of the water surface 0.2～0.5m, and laterally
Described portable fence panel arranges a fixing point every 0.5～1m.
5. method according to claim 4 it is characterised in that: the mesh diameter of the soft net (4) in described step d, step g
For 2～5cm, material is plastics or nylon.
6. method according to claim 1 it is characterised in that: lift control system described in step c pass through communication network
Hydraulic cylinder described in remotely control (9), and the position of described portable fence panel is adjusted according to the water level height that described buoy (3) detects
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610836379.9A CN106337405B (en) | 2016-09-21 | 2016-09-21 | A kind of method of automatic cleaning river garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610836379.9A CN106337405B (en) | 2016-09-21 | 2016-09-21 | A kind of method of automatic cleaning river garbage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337405A true CN106337405A (en) | 2017-01-18 |
| CN106337405B CN106337405B (en) | 2018-08-31 |
Family
ID=57839005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610836379.9A Active CN106337405B (en) | 2016-09-21 | 2016-09-21 | A kind of method of automatic cleaning river garbage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106337405B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227313A (en) * | 2020-10-30 | 2021-01-15 | 昆明理工大学 | Utilize power-eliminating well scrubbing device of rivers kinetic energy effect |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459346Y (en) * | 2000-12-27 | 2001-11-14 | 李荫国 | Net for collecting float articles on water surface |
| CN201459695U (en) * | 2009-08-18 | 2010-05-12 | 简乐嘉 | Water surface garbage trash rack for river channels |
| CN202809581U (en) * | 2012-09-11 | 2013-03-20 | 扬州楚门机电设备制造有限公司 | Floating type trash blocking device |
| KR101272903B1 (en) * | 2012-12-27 | 2013-06-11 | 주식회사 삼안 | Silt prevent the spread of temporary for harbor renovation and, marine dredging and reclamation |
| CN203462449U (en) * | 2013-08-19 | 2014-03-05 | 刘峰海 | System for intercepting and collecting garbage floating on river |
| CN104895031B (en) * | 2015-05-04 | 2016-08-24 | 安徽工业大学 | A kind of polluted-water muddy water synchronizes to repair ship and using method |
-
2016
- 2016-09-21 CN CN201610836379.9A patent/CN106337405B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459346Y (en) * | 2000-12-27 | 2001-11-14 | 李荫国 | Net for collecting float articles on water surface |
| CN201459695U (en) * | 2009-08-18 | 2010-05-12 | 简乐嘉 | Water surface garbage trash rack for river channels |
| CN202809581U (en) * | 2012-09-11 | 2013-03-20 | 扬州楚门机电设备制造有限公司 | Floating type trash blocking device |
| KR101272903B1 (en) * | 2012-12-27 | 2013-06-11 | 주식회사 삼안 | Silt prevent the spread of temporary for harbor renovation and, marine dredging and reclamation |
| CN203462449U (en) * | 2013-08-19 | 2014-03-05 | 刘峰海 | System for intercepting and collecting garbage floating on river |
| CN104895031B (en) * | 2015-05-04 | 2016-08-24 | 安徽工业大学 | A kind of polluted-water muddy water synchronizes to repair ship and using method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227313A (en) * | 2020-10-30 | 2021-01-15 | 昆明理工大学 | Utilize power-eliminating well scrubbing device of rivers kinetic energy effect |
| CN112227313B (en) * | 2020-10-30 | 2021-10-15 | 昆明理工大学 | Utilize power-eliminating well scrubbing device of rivers kinetic energy effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106337405B (en) | 2018-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206052670U (en) | A kind of river garbage automatic cleaning apparatus | |
| CN106245611B (en) | A kind of river garbage automatic cleaning apparatus | |
| CN105544697B (en) | Region burst rainwater based on combined system pipe network shunts, regulated and stored and processing system | |
| CN104975648B (en) | Combined system underground Rainwater Storage Tank | |
| CN106436668B (en) | A kind of river garbage automatic cleaning method | |
| CN113045134B (en) | Double-layer enclosure system and method suitable for river ecological restoration pretreatment | |
| CN205369188U (en) | Novel water conservancy pipeline | |
| CN106223298B (en) | A kind of device of automatic cleaning river garbage | |
| CN204753798U (en) | Confluence system underground initial stage rainwater regulation pond | |
| KR20140033194A (en) | Eco-friendly water purification method that restores stream ecosystem using automatic fish and at the same time cleans polluted river water while producing electricity | |
| CN105672444B (en) | Rainwater division processing system based on combined system pipe network | |
| CN206052671U (en) | A kind of device of automatic cleaning river garbage | |
| CN208455587U (en) | A kind of dam with water area refuse cleaning function | |
| CN206916920U (en) | It is automatically separated the grid of suspended material | |
| CN207567922U (en) | A kind of device for dragging dregs and a kind of abandoned stream well | |
| CN106337405A (en) | Method for automatically removing watercourse trash | |
| CN104975649A (en) | Separate system type initial rainwater regulation and storage pool | |
| CN210712794U (en) | Self-suction type garbage collection device | |
| CN205637026U (en) | Regional burst rainwater processing system based on mixed flow tubulation net | |
| CN217974721U (en) | Sponge urban rainwater regulation and storage system | |
| CN207436237U (en) | A kind of hoisting type device for dragging dregs | |
| CN204983119U (en) | Reposition of redundant personnel system initial stage rainwater regulation pond | |
| KR20140032517A (en) | Naturally friendly water purification eco-friendly method that saves natural water by saving river water in multiple stages while producing electricity and purifying polluted river water | |
| KR20140024036A (en) | Natural eco-friendly method that cleans contaminated river water naturally by first discharging clean river water with heavy gravity while restoring the natural ecosystem by using automatic water purifier | |
| CN212200341U (en) | Building farmland ditch structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |