CN107137960A - A kind of efficient mud scraper of water injection type - Google Patents
A kind of efficient mud scraper of water injection type Download PDFInfo
- Publication number
- CN107137960A CN107137960A CN201710368481.5A CN201710368481A CN107137960A CN 107137960 A CN107137960 A CN 107137960A CN 201710368481 A CN201710368481 A CN 201710368481A CN 107137960 A CN107137960 A CN 107137960A
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- Prior art keywords
- bar shaped
- shaped bar
- bar
- jet
- chamber
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- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2472—Means for fluidising the sediments, e.g. by jets or mechanical agitators
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention discloses a kind of efficient mud scraper of water injection type, including：Service bridge, drive mechanism, rotary shaft, mud-scraping mechanism and giant, wherein：Mud-scraping mechanism includes mounting bracket and the scraper plate being fixedly mounted on mounting bracket, and the positive and negative both sides of scraper plate are equipped with Po Ni mechanisms, and Po Ni mechanisms include the crossbearer of bar shaped bar and connection bar shaped bar and mounting bracket, and the inside of bar shaped bar is provided with chamber, and its side wall is provided with jet；Giant includes high-pressure plunger pump, power set and injection pipette tips；High-pressure plunger pump and power set are fixedly mounted on service bridge, and injection pipette tips are fixedly mounted in the chamber, and the outlet of injection pipette tips is located in the jet.Present invention utilization sprays pipette tips and water under high pressure is sprayed into mud layer, the sludge for being deposited in bottom of pond is diluted so that the driving force needed for rotary shaft is rotated is greatly reduced, and is greatly reduced the power consumption of whole machine, its service life is then greatly prolonged.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of efficient mud scraper of water injection type.
Background technology
Mud scraper is mainly used in the circle being relatively large in diameter in municipal sewage plant, waterworks and Industrial Wastewater Treatment
In sedimentation basin, the sludge of bottom of pond is deposited in for excluding.It is pressed down against, is compacted by Action of Gravity Field due to being deposited in after bottom of pond, is made
Lower floor's viscosity is big into pool bottom sludge, so that mud scraper is when being acted on, the resistance that it is subject to is very big, and easily folding
Damage, it would be highly desirable to improve.
The content of the invention
The technical problem existed based on above-mentioned background technology, the present invention proposes a kind of efficient mud scraper of water injection type.
The present invention proposes a kind of efficient mud scraper of water injection type, including：For the work for the top for being fixedly mounted on sedimentation basin
Make bridge, the drive mechanism being fixedly mounted on service bridge, be connected with drive mechanism and driven by drive mechanism and carry out rotating
Rotary shaft, positioned at rotary shaft top and be secured to install mud-scraping mechanism and giant, wherein：
Mud-scraping mechanism includes the mounting bracket with rotary shaft fixing assembling and the scraper plate being fixedly mounted on mounting bracket, scraper plate
Positive and negative both sides are equipped with Po Ni mechanisms, and Po Ni mechanisms are included to away from the linearly extended bar shaped bar in scraper plate direction and connection bar shaped bar
With the crossbearer of mounting bracket, the inside of bar shaped bar is provided with chamber, and its side wall is provided with the jet with its chamber；
Giant includes high-pressure plunger pump, for making high-pressure plunger pump produce the power set of water under high pressure and by water pipe
The injection pipette tips being connected with high-pressure plunger pump；High-pressure plunger pump and power set are fixedly mounted on service bridge, water pipe spiral
Coil on the rotary shaft and be rotatably connected with high-pressure plunger pump；Injection pipette tips are fixedly mounted in the chamber, and make injection
The outlet of pipette tips is located in the jet, makes between the outer peripheral face of injection pipette tips and the inner peripheral surface of jet provided with sealing knot
Structure.
Preferably, bar shaped bar is provided with multiple, and each bar shaped distance between tie rods arranged is simultaneously connected to each other by crossbearer, and each bar shaped bar
High cross arrangement in direction arranged along.
Preferably, interior of rotating shaft has axially extending passage, and passage has water inlet and delivery port, the water inlet of passage
Mouth is located at rotary shaft close to the side of service bridge, and its delivery port is located at rotary shaft close to the side of mounting bracket；Water pipe includes upper water
Pipe and downcomer, on the rotary shaft, and one end of upper hose is rotatably connected upper hose coiled coil with high-pressure plunger pump, and its is another
One end is connected with the water inlet of passage；One end of downcomer is connected with injection pipette tips, and its other end is connected with the delivery port of passage.
Preferably, the cloth line chamber connected up for downcomer is provided with inside mounting bracket；Crossbearer is fixed with mounting bracket, is had inside crossbearer
There is the transition duct for connecting the cloth line chamber and the chamber.
Preferably, end of the bar shaped bar away from scraper plate one end is provided with end cap, face area of the end cap close to bar shaped bar one end
More than the face area of the bar shaped bar, and the end face of the bar shaped bar is located on the inside of the end face of end cap.
Preferably, jet is located at the side that bar shaped bar leans on proximal cap.
Preferably, end cap is triangular prism shape structure, in the lower surface of its bottom surface and scraper plate is generally aligned in the same plane, its side
Side and end face of the bar shaped bar away from scraper plate one end against and it is fixed.
Preferably, provided with the folder chamber for extending along its length and being passed through by jet, folder between the inside and outside wall of bar shaped bar
Intracavitary portion and positioned at jet away from end cap one end be provided with compression spring, press from both sides intracavitary portion and positioned at jet lean on proximal cap one
Side is provided with push rod；Bar shaped bar is provided with axially extending main line die cavity by one end of proximal cap, and main line cavity bottom is provided with reset
Spring, the one end of bar shaped bar by proximal cap and the side positioned at main line die cavity are provided with the subordinate line die cavity connected with folder chamber；End cap is leaned on
Nearly bar shaped bar one end is provided with main lug boss and the auxiliary lug boss positioned at main lug boss side, and the main lug boss stretches into main line die cavity
It is internal and with back-moving spring against, auxiliary lug boss by subordinate line die cavity stretch into folder intracavitary portion and with push rod against；It is provided with jet
For the cover plate covered to the jet, the cover plate, which is located at, sprays side of the pipette tips outlet away from chamber, and the cover plate
Outward flange is respectively positioned on folder intracavitary, the cover plate close to the side of compression spring and compression spring against, its close to the side of push rod with
Push rod is fixed.
Preferably, when cover plate is opened, giant action.
In the present invention, by setting Po Ni mechanisms in scraper plate both sides, and Shi Po mud mechanism is included to straight away from scraper plate direction
The bar shaped bar of line extension and the crossbearer of connection bar shaped bar and mounting bracket, the inside of bar shaped bar are provided with chamber, and its side wall is provided with and it
The jet of chamber；Injection pipette tips are arranged on chamber interior, and the outlet of injection pipette tips is located in jet, and spray
Penetrate and sealing structure is provided between the outer peripheral face of pipette tips and the inner peripheral surface of jet；Booster pump is set on the rotary shaft simultaneously, and made
Booster pump is connected by pipeline with injection pipette tips, when scraping mud operation, and no matter rotary shaft is under rotating forward or inverted status, is broken
Mud mechanism is in the front side of scraper plate rotation direction and can be deep into mud layer, and high pressure is sprayed into mud layer using pipette tips are sprayed
Water, enables the sludge for being deposited in bottom of pond to dilute so that the driving force needed for rotary shaft is rotated is greatly reduced, and makes whole machine
The power consumption of device is greatly reduced, and its service life is then greatly prolonged, and the water under high pressure of injection also washes away to bottom of pond,
While scraping mud effect of mud scraper is being improved, the cleaning action to bottom of pond is also acted.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the efficient mud scraper of water injection type proposed by the present invention；
The structural representation of Po Ni mechanisms described in a kind of Fig. 2 efficient mud scrapers of water injection type proposed by the present invention.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Such as Fig. 1-2, Fig. 1 is a kind of structural representation of the efficient mud scraper of water injection type proposed by the present invention；Fig. 2 present invention is carried
The structural representation of Po Ni mechanisms described in the efficient mud scraper of a kind of water injection type gone out.
Reference picture 1-2, the efficient mud scraper of a kind of water injection type that the embodiment of the present invention is proposed, including：For being fixedly mounted on
The service bridge 1 of the top of sedimentation basin, the drive mechanism 2 being fixedly mounted on service bridge 1, it is connected and by driving with drive mechanism 2
Mechanism 2 driving carry out rotating rotary shaft 3, positioned at the top of rotary shaft 3 and be secured to install mud-scraping mechanism and high pressure
Hydraulic giant, wherein：
Mud-scraping mechanism includes the mounting bracket 4 with the fixing assembling of rotary shaft 3 and the scraper plate 5 being fixedly mounted on mounting bracket 4, scrapes
The positive and negative both sides of plate 5 are equipped with Po Ni mechanisms, and Po Ni mechanisms are fixed with mounting bracket 4, and Po Ni mechanisms include what some spacing were arranged
Bar shaped bar 6 and the crossbearer 7 that each bar shaped bar 6 links together, and each bar shaped bar 6 high cross arrangement in direction arranged along, respectively
Bar shaped bar 6 extends by the side that scraper plate 5 is laterally away from close to the one of scraper plate 5, and the inside of each bar shaped bar 6 is equipped with chamber, its
Side wall is equipped with the jet with its chamber.Giant includes high-pressure plunger pump 8, for producing high-pressure plunger pump 8
The power set 9 of water under high pressure and the injection pipette tips 11 being connected by water pipe 10 with high-pressure plunger pump 8；High-pressure plunger pump 8 and power
Device 9 is fixedly mounted on service bridge 1, and water pipe 10 is spirally coiled in rotary shaft 3 and rotatably connected with high-pressure plunger pump 8
Connect；Injection pipette tips 11 are fixedly mounted in the chamber, and the outlet of injection pipette tips 11 is located in the jet, make injection
Sealing structure is provided between the outer peripheral face of pipette tips 11 and the inner peripheral surface of jet.
The present invention is by setting Po Ni mechanisms in the both sides of scraper plate 5, and Shi Po mud mechanism includes the bar shaped that some spacing are arranged
Bar 6 and the crossbearer 7 that each bar shaped bar 6 links together, each bar shaped bar 6 are laterally away from the one of scraper plate 5 by close to the one of scraper plate 5
Side extends, and the inside of each bar shaped bar 6 is equipped with chamber, and its side wall is equipped with the jet with its chamber；Pipette tips will be sprayed
11 are arranged on chamber interior, and make, and the outlet of injection pipette tips 11 is located in jet, and outer peripheral face and the injection of injection pipette tips 11
Sealing structure is provided between the inner peripheral surface of mouth；Booster pump is set in rotary shaft 3 simultaneously, and booster pump is passed through pipeline and injection
Pipette tips are connected, when scraping mud operation, and no matter rotary shaft 3 is under rotating forward or inverted status, and Po Ni mechanisms are in 5 turns of scraper plate
The front side in dynamic direction simultaneously can be deep into mud layer, and water under high pressure is sprayed into mud layer using pipette tips 11 are sprayed, and make to be deposited in bottom of pond
Sludge diluted so that the driving force needed for rotary shaft 3 is rotated is greatly reduced, and enables the power consumption of whole machine big
Big to reduce, its service life is then greatly prolonged, and the water under high pressure of injection also washes away to bottom of pond, is improving mud scraper
While scraping mud effect, the cleaning action to bottom of pond is also acted.
In addition, in the present embodiment, the inside of rotary shaft 3 has axially extending passage, and passage has water inlet A and delivery port
B, the water inlet A of passage is located at rotary shaft 3 close to the side of service bridge 1, and its water outlet B is located at rotary shaft 3 close to mounting bracket 4
Side；Water pipe 10 includes upper hose 101 and downcomer 102, and upper hose 101 is spirally coiled in rotary shaft 3, and upper hose 101
One end be rotatably connected with high-pressure plunger pump 8, its other end is connected with the water inlet A of passage；One end of downcomer 102 and spray
Penetrate pipette tips 11 to connect, its other end is connected with the water outlet B of passage.The setting of the structure can effectively shorten the length of water pipe 10,
Avoid circuit excessive in the periphery of the rotary shaft 3 winding number of turns.And in the present embodiment, the inside of mounting bracket 4 is provided with to be connected up for downcomer 102
Cloth line chamber；Crossbearer 7 is fixed with mounting bracket 4, and the inside of crossbearer 7 has the transition duct for connecting the cloth line chamber and the chamber,
So that downcomer 102 can stretch into cloth line chamber and along cloth line chamber and transition duct in wiring directed along rotating shaft outer wall
It is connected into chamber interior with injection pipette tips 11, can both avoided circuit dilatory, improves the cleaning of outward appearance, again can be to downcomer
102 are protected.
In the present embodiment, end of the bar shaped bar 6 away from the one end of scraper plate 5 is provided with end cap 12, and end cap 12 is close to the one end of bar shaped bar 6
Face area be more than the bar shaped bar 6 face area, and the bar shaped bar 6 end face be located at end cap 12 end face on the inside of；It is described
Jet is located at the side that bar shaped bar 6 leans on proximal cap 12, so that using the effect of blocking of end cap 12, jet is blocked.And end cap 12
Triangular prism shape structure is set to, the lower surface of its bottom surface and scraper plate 5 is generally aligned in the same plane interior, side and the bar shaped bar 6 of its side
End face away from the one end of scraper plate 5 against and it is fixed so that one seamed edge of triangular prism is located remotely from the side of scraper plate 5, with using should
Seamed edge is crushed to the mud that bottom of pond is lumpd.
In the present embodiment, provided with the folder for extending along its length and being passed through by jet between the inside and outside wall of bar shaped bar 6
Chamber, presss from both sides intracavitary portion and is provided with compression spring 13 positioned at the one end of jet away from end cap 12, press from both sides intracavitary portion and leaned on positioned at jet
The side of proximal cap 12 is provided with push rod 14；Bar shaped bar 6 is provided with axially extending main line die cavity, main line type by one end of proximal cap 12
Bottom of chamber portion is provided with back-moving spring 15, and the one end of bar shaped bar 6 by proximal cap 12 and the side positioned at main line die cavity are provided with and folder chamber
The subordinate line die cavity of connection；Hold cap 12 close to the one end of bar shaped bar 6 provided with main lug boss 601 and positioned at the auxiliary of the main side of lug boss 601
Lug boss 602, the main lug boss 601 is stretched into inside main line die cavity and with back-moving spring 15 against auxiliary lug boss 602 is by subordinate line
Die cavity stretch into folder intracavitary portion and with push rod 14 against；The cover plate 16 for being used for being covered to the jet is provided with jet, should
Cover plate 16 is located at side of the injection pipette tips outlet away from chamber, and the outward flange of the cover plate 16 is respectively positioned on folder intracavitary, the cover plate 16
Close to the side of compression spring 13 with compression spring 13 against it is fixed close to the side of push rod 14 with push rod 14.Said structure
Setting can automatically turn on cover plate 16 according to the drag size of mud, and when cover plate is opened, giant action is carried out
Water spray operation.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of efficient mud scraper of water injection type, it is characterised in that including：For the service bridge for the top for being fixedly mounted on sedimentation basin
(1) drive mechanism (2) that, is fixedly mounted on service bridge (1), be connected with drive mechanism (2) and by drive mechanism (2) drive into
The rotary shaft (3) of row rotating, positioned at rotary shaft (3) top and be secured to install mud-scraping mechanism and giant, its
In：
Mud-scraping mechanism includes the mounting bracket (4) with rotary shaft (3) fixing assembling and the scraper plate being fixedly mounted on mounting bracket (4)
(5), the positive and negative both sides of scraper plate (5) are equipped with Po Ni mechanisms, and Po Ni mechanisms are included to away from the linearly extended bar in scraper plate (5) direction
The crossbearer (7) of shape bar (6) and connection bar shaped bar (6) and mounting bracket (4), the inside of bar shaped bar (6) is provided with chamber, and its side wall is provided with
With the jet of its chamber；
Giant includes high-pressure plunger pump (8), for making high-pressure plunger pump (8) produce the power set (9) of water under high pressure and lead to
Cross the injection pipette tips (11) that water pipe (10) is connected with high-pressure plunger pump (8)；High-pressure plunger pump (8) and power set (9) are fixed
On service bridge (1), water pipe (10) is spirally coiled in rotary shaft (3) and is rotatably connected with high-pressure plunger pump (8)；Spray
Penetrate pipette tips (11) to be fixedly mounted in the chamber, and the outlet of injection pipette tips (11) is located in the jet, make injection
Sealing structure is provided between the outer peripheral face of pipette tips (11) and the inner peripheral surface of jet.
2. the efficient mud scraper of water injection type according to claim 1, it is characterised in that bar shaped bar (6) is provided with multiple, each bar shaped
Bar (6) spacing arranged is simultaneously connected to each other by crossbearer (7), and each bar shaped bar (6) high cross arrangement in direction arranged along.
3. the efficient mud scraper of water injection type according to claim 1, it is characterised in that have inside rotary shaft (3) and axially prolong
The passage stretched, passage has water inlet (A) and delivery port (B), and the water inlet (A) of passage is located at rotary shaft (3) close to service bridge
(1) side, its delivery port (B) is located at rotary shaft (3) close to the side of mounting bracket (4)；Water pipe (10) includes upper hose (101)
With downcomer (102), upper hose (101) is spirally coiled in rotary shaft (3), and one end and the high-pressure plunger of upper hose (101)
Pump (8) is rotatably connected, and its other end is connected with the water inlet (A) of passage；One end of downcomer (102) and injection pipette tips (11)
Connection, its other end is connected with the delivery port (B) of passage.
4. the efficient mud scraper of water injection type according to claim 3, it is characterised in that be provided with inside mounting bracket (4) and supply lower water
Manage the cloth line chamber of (102) wiring；Crossbearer (7) is fixed with mounting bracket (4), has inside crossbearer (7) and connects the cloth line chamber and institute
State the transition duct of chamber.
5. the efficient mud scraper of water injection type according to claim 1, it is characterised in that bar shaped bar (6) is away from scraper plate (5) one end
End provided with end cap (12), end cap (12) close to bar shaped bar (6) one end face area be more than the bar shaped bar (6) end face face
Product, and the end face of the bar shaped bar (6) is located at the end face inner side for holding cap (12).
6. the efficient mud scraper of water injection type according to claim 5, it is characterised in that it is close that jet is located at bar shaped bar (6)
Hold the side of cap (12).
7. the efficient mud scraper of water injection type according to claim 5, it is characterised in that end cap (12) is triangular prism shape structure,
In the lower surface of its bottom surface and scraper plate (5) is generally aligned in the same plane, side and remote scraper plate (5) one end of bar shaped bar (6) of its side
End face against and it is fixed.
8. the efficient mud scraper of water injection type according to claim 5, it is characterised in that set between the inside and outside wall of bar shaped bar (6)
There is the folder chamber for extending along its length and being passed through by jet, press from both sides intracavitary portion and positioned at the one end of jet away from end cap (12)
Provided with compression spring (13), press from both sides intracavitary portion and the side positioned at jet by proximal cap (12) is provided with push rod (14)；Bar shaped bar (6)
Axially extending main line die cavity is provided with by one end of proximal cap (12), main line cavity bottom is provided with back-moving spring (15), bar shaped
Bar (6) leans on one end of proximal cap (12) and the subordinate line die cavity connected with folder chamber is provided with positioned at the side of main line die cavity；Hold cap (12)
Main lug boss (601) and the auxiliary lug boss (602) positioned at main lug boss (601) side are provided with close to bar shaped bar (6) one end, it is described
Main lug boss (601) is stretched into inside main line die cavity and with back-moving spring (15) against auxiliary lug boss (602) is stretched into by subordinate line die cavity
Press from both sides intracavitary portion and with push rod (14) against；The cover plate (16) for being used for being covered to the jet, the cover plate are provided with jet
(16) it is located at side of the injection pipette tips outlet away from chamber, and the outward flange of the cover plate (16) is respectively positioned on folder intracavitary, the cover plate
(16) close to the side of compression spring (13) and compression spring (13) against it is solid close to the side of push rod (14) and push rod (14)
It is fixed.
9. the efficient mud scraper of water injection type according to claim 8, it is characterised in that when cover plate (16) is opened, water under high pressure
Rifle is acted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368481.5A CN107137960A (en) | 2017-05-22 | 2017-05-22 | A kind of efficient mud scraper of water injection type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368481.5A CN107137960A (en) | 2017-05-22 | 2017-05-22 | A kind of efficient mud scraper of water injection type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107137960A true CN107137960A (en) | 2017-09-08 |
Family
ID=59779314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368481.5A Withdrawn CN107137960A (en) | 2017-05-22 | 2017-05-22 | A kind of efficient mud scraper of water injection type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107137960A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201712A (en) * | 2018-03-07 | 2018-06-26 | 赵西宁 | A kind of peripheral drive sludge scraper applied in Industrial sewage treatment system |
| CN110980840A (en) * | 2020-01-03 | 2020-04-10 | 成小芳 | Sludge scraping device for sewage treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757520Y (en) * | 2004-06-16 | 2006-02-15 | 尹传锋 | Multifunction fertilizing and water injecting gun |
| CN201279400Y (en) * | 2008-09-12 | 2009-07-29 | 江苏新纪元环保有限公司 | Sand scraping and sucking device in water treatment sedimentation basin |
| CN102886160A (en) * | 2012-09-21 | 2013-01-23 | 江苏北辰环境科技有限公司 | Four-dimensional sewage treatment tank sludge scrapping mechanism |
| CN206063874U (en) * | 2016-08-29 | 2017-04-05 | 江苏绿环机械设备有限公司 | A kind of lifting center drive mud-scraper |
-
2017
- 2017-05-22 CN CN201710368481.5A patent/CN107137960A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757520Y (en) * | 2004-06-16 | 2006-02-15 | 尹传锋 | Multifunction fertilizing and water injecting gun |
| CN201279400Y (en) * | 2008-09-12 | 2009-07-29 | 江苏新纪元环保有限公司 | Sand scraping and sucking device in water treatment sedimentation basin |
| CN102886160A (en) * | 2012-09-21 | 2013-01-23 | 江苏北辰环境科技有限公司 | Four-dimensional sewage treatment tank sludge scrapping mechanism |
| CN206063874U (en) * | 2016-08-29 | 2017-04-05 | 江苏绿环机械设备有限公司 | A kind of lifting center drive mud-scraper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201712A (en) * | 2018-03-07 | 2018-06-26 | 赵西宁 | A kind of peripheral drive sludge scraper applied in Industrial sewage treatment system |
| CN108201712B (en) * | 2018-03-07 | 2019-03-15 | 赵西宁 | A kind of peripheral drive sludge scraper applied in Industrial sewage treatment system |
| CN110980840A (en) * | 2020-01-03 | 2020-04-10 | 成小芳 | Sludge scraping device for sewage treatment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170908 |