CN111437639A - Sludge removal device for circular sewage sedimentation tank and use method thereof - Google Patents
Sludge removal device for circular sewage sedimentation tank and use method thereof Download PDFInfo
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- CN111437639A CN111437639A CN202010473618.5A CN202010473618A CN111437639A CN 111437639 A CN111437639 A CN 111437639A CN 202010473618 A CN202010473618 A CN 202010473618A CN 111437639 A CN111437639 A CN 111437639A
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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
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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
- B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
-
- 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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- 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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a sludge removal device for a circular sewage sedimentation tank and a using method thereof, and relates to the field of sewage tank sedimentation sludge treatment. This a mud removal device for circular sewage sedimentation tank and application method thereof slowly stirs into comparatively thin mud from top to bottom through the blade that constantly rotates the decline in with the sedimentation mud in whole sedimentation tank, uses the inlet pipe of sludge pump also constantly to descend simultaneously and takes out mud, can be convenient clear up the mud of being thicker, can raise the efficiency.
Description
Technical Field
The invention relates to the technical field of sewage tank sedimentation sludge treatment, in particular to a sludge removal device for a circular sewage sedimentation tank and a using method thereof.
Background
Electroplating wastewater mainly comes from the electroplating industry, a large amount of water resources are needed in the production process, cyanide and various heavy metals are contained in the wastewater in the production process, and the wastewater can cause serious damage to the external environment if discharged to the outside. Therefore, the related industries need to use a wastewater treatment device to purify the wastewater, so as to reduce the direct damage to the environment. The existing electroplating wastewater treatment adopts a method of adding a flocculating agent to gelatinize and polymerize fine solid particles such as suspended matters, colloid particles and the like in wastewater to form precipitated slurry, and then the precipitated sludge in a water body is removed through a sludge removal device, so that the aims of reducing the solid content of the wastewater and purifying the water body are fulfilled.
According to the industrial waste water treatment mud removal device that chinese patent number is CN201620021791.0, this contrast file includes the sedimentation tank, the work bridge, a stationary flow section of thick bamboo, drive mechanism, the transmission shaft and scrapes mud mechanism, wherein the work bridge frame is established in the top of sedimentation tank, the middle part upper surface that lies in the work bridge has drive mechanism, lower surface mounting has a stationary flow section of thick bamboo, this drive mechanism is connected with perpendicular decurrent transmission shaft, this transmission shaft runs through stationary flow section of thick bamboo and extends to row's mud mouth upper end, it installs to be located this transmission shaft and be close to sedimentation tank bottom one end scrape mud mechanism, the end that lies in the transmission shaft installs little scraper blade, its characterized in that: the mud scraping mechanism comprises a connecting assembly, the connecting assembly is movably connected by adjacent connecting components, the upper end of each connecting component is connected with a pull rod, and the other end of each pull rod is connected with a transmission shaft; the lower end of each connecting part is fixedly provided with a mud scraper.
But this industrial waste water treatment desilt device only can carry out good desilt to the mud that mud thickness is lighter, when sewage concentration is too high or deposit many times and do not clear up the back, at this moment can lead to the mud thickness of production very thick, the very high very firm that condenses of mud density of mud layer bottom, directly carries out mud discharge from the bottom and blocks up very easily, influences efficiency.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a sludge removal device for a circular sewage sedimentation tank and a using method thereof, wherein the sludge removal device is used for discharging sludge from the top of a sludge layer, and the problems in the background art are solved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a sludge removal device for a circular sewage sedimentation tank comprises a tank body, wherein two bases are fixedly connected to two sides of the top of the tank body, an installation rack is fixedly connected to the top of each base, a lifting plate capable of moving up and down is arranged in the installation rack, a rotating shaft is fixedly connected to the center of the bottom of the lifting plate, the rotating shaft is vertically arranged, the axis of the rotating shaft penetrates through the center of the tank body, a reduction gearbox is connected to the top of the rotating shaft, a first motor is connected to one side of the reduction gearbox, and the reduction gearbox and the first motor are both fixedly connected to the lifting plate;
two lead screw assemblies are symmetrically arranged on two sides of the rotating shaft, each lead screw assembly comprises a lead screw body and a copper sleeve, the lead screw bodies are vertically arranged, the tops of the lead screw bodies are hinged to the mounting frame, the bottoms of the lead screw bodies are hinged to the base, the copper sleeves are matched with the lead screw bodies, the copper sleeves are fixedly connected with the lifting plate, the tops of the mounting frame are fixedly connected with a second motor, and the lead screw bodies are in linkage connection with the second motor;
the bottom end of the rotating shaft is fixedly connected with a fixing frame which is arranged in an inverted L shape, the length of the fixing frame is smaller than the inner diameter of the tank body, the middle of the bottom of the fixing frame is fixedly connected with a shell, the inside of the shell is fixedly connected with a vertically arranged third motor, an output shaft of the third motor is fixedly connected with a first bevel gear, one side of the first bevel gear is meshed with two second bevel gears, one side of each second bevel gear is fixedly connected with a central shaft, one end of each central shaft extends to the outside of the shell and is hinged with the fixing frame, two side plates are fixedly connected onto each central shaft, and a blade is fixedly connected between the two side plates;
fixedly connected with sludge pump on the lifter plate, one side fixedly connected with inlet pipe of sludge pump, the opposite side fixedly connected with discharging pipe of sludge pump, the one end that sludge pump was kept away from to the inlet pipe extends to the lower surface of shell, and inlet pipe and shell fixed connection.
Preferably, the feeding pipe and the discharging pipe are both provided with spring hoses.
Preferably, the top of the screw rod body is fixedly connected with a first gear, an output shaft of the second motor is fixedly connected with a second gear, and the first gear and the second gear are in transmission connection with a transmission belt.
Preferably, the number of the blades is five, and the five blades are arranged at equal angles by taking the axis of the central shaft as the center.
Preferably, a conical projection is fixedly connected to the bottom of the housing, and the conical projection is in the shape of an inverted cone.
The use method of the sludge removal device for the circular sewage sedimentation tank comprises the following steps:
the method comprises the following steps: the first motor is started, the first motor rotates forwards and backwards alternately, the first motor drives the rotating shaft to rotate forwards and backwards alternately, and the rotating shaft drives the fixing frame to rotate forwards and backwards alternately by taking the rotating shaft as a center;
step two: a third motor is started, the third motor drives a first bevel gear to rotate, the first bevel gear drives two second bevel gears to rotate, the two second bevel gears drive two central shafts to rotate, the rotating directions of the two second bevel gears are opposite, and the two central shafts drive the blade to rotate by taking the central shaft as the center through the side plate;
step three: a second motor is started, the second motor drives two first gears to rotate, the two first gears drive two second gears to rotate through two transmission belts, and the two second gears respectively drive two lead screw bodies to rotate, so that the lead screw is matched with two copper sleeves on the lead screw bodies to descend synchronously, the copper sleeves are fixedly connected with the lifting plate, and the lifting plate can descend together;
step four: when the blades are in contact with the precipitated sludge layer, a small amount of water is intermittently added into the tank body, the rotating blades can scrape the sludge on the upper layer of the precipitated sludge layer by layer in the gradual descending process, and then the sludge adhered to the blades can be mixed into water under the action of the rotating blades, so that the upper layer of the precipitated sludge layer is slowly changed into a thin sludge layer;
step five: the sludge pump is started, the feeding pipe of the sludge pump can pump out the sludge layer on the precipitated sludge layer, and then the sludge layer is pumped out through the discharging pipe, and the sludge layer can be continuously removed when the sludge layer descends;
step six: along with the continuous decline of lifter plate, the sludge blanket can constantly become the thin, can clear up the mud of bottom in the cell body after the bottom laminating of blade and cell body, accomplishes at this moment second motor reversal behind the mud clearance of bottom for the lifter plate resets, then cuts off power supply, accomplishes clearance once.
(III) advantageous effects
The invention provides a sludge removal device for a circular sewage sedimentation tank and a using method thereof.
The method has the following beneficial effects:
1. this a mud removal device for circular sewage sedimentation tank and application method thereof slowly stirs into comparatively thin mud from top to bottom through the blade that constantly rotates the decline in with the sedimentation mud in whole sedimentation tank, uses the inlet pipe of sludge pump also constantly to descend simultaneously and takes out mud, can be convenient clear up the mud of being thicker, can raise the efficiency.
2. This a mud removing device for circular sewage sedimentation tank and application method thereof, through opening the third motor, the third motor drives first bevel gear rotatory, first bevel gear drives two second bevel gear rotations, two second bevel gear drive two center pins rotatory, and two second bevel gear's direction of rotation are opposite, two center pins pass through the curb plate and drive the blade and use the center pin to rotate as the center, can drive the rotation opposite direction of two epaxial blades in center, make two epaxial blades in center more even when stirring sedimentation mud, it is effectual to beat into mud.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a front view of the structure of the present invention;
FIG. 3 is a rear sectional view of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 3A according to the present invention;
FIG. 5 is a perspective view of a blade construction of the present invention;
FIG. 6 is a side cross-sectional view of a blade of the present invention.
In the figure: 1 tank body, 4 mounting racks, 5 lifting plates, 6 bases, 7 rotating shafts, 8 lead screw bodies, 9 copper sleeves, 10 first motors, 11 transmission belts, 12 second motors, 13 reduction boxes, 14 sludge pumps, 15 feeding pipes, 16 fixing frames, 17 discharging pipes, 18 first gears, 19 second gears, 20 conical lugs, 21 central shafts, 22 side plates, 23 blades, 31 shells, 32 second conical gears, 33 first bevel gears and 34 third motors.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment of the invention provides a sludge removal device for a circular sewage sedimentation tank, which comprises a tank body 1, wherein two bases 6 are fixedly connected to two sides of the top of the tank body 1, an installation frame 4 is fixedly connected to the top of each base 6, a lifting plate 5 capable of moving up and down is arranged in each installation frame 4, a rotating shaft 7 is fixedly connected to the center of the bottom of each lifting plate 5, the rotating shaft 7 is vertically arranged, the axis of each rotating shaft 7 penetrates through the center of the tank body 1, a reduction gearbox 13 is connected to the top of each rotating shaft 7, a first motor 10 is connected to one side of each reduction gearbox 13, the reduction gearbox 13 and the first motor 10 are both fixedly connected to the lifting plates 5, two screw rod assemblies are symmetrically arranged on two sides of each rotating shaft 7, each screw rod assembly comprises a screw rod body 8 and a copper sleeve 9, each screw rod body 8 is vertically arranged, and the top of each, the bottom of the screw rod body 8 is hinged with the base 6, a copper sleeve 9 is matched with the screw rod body 8, the copper sleeve 9 is fixedly connected with the lifting plate 5, the top of the mounting rack 4 is fixedly connected with a second motor 12, and the screw rod body 8 is in linkage connection with the second motor 12;
the bottom end of the rotating shaft 7 is fixedly connected with a fixed frame 16, the fixed frame 16 is arranged in an inverted L shape, the length of the fixed frame 16 is smaller than the inner diameter of the tank body 1, the middle of the bottom of the fixed frame 16 is fixedly connected with a shell 31, the inside of the shell 31 is fixedly connected with a vertically arranged third motor 34, an output shaft of the third motor 34 is fixedly connected with a first bevel gear 33, one side of the first bevel gear 33 is engaged with two second bevel gears 32, one side of each second bevel gear 32 is fixedly connected with a central shaft 21, one end of the central shaft 21 extends to the outside of the shell 31 and is hinged with the fixed frame 16, each central shaft 21 is fixedly connected with two side plates 22, and a blade;
fixedly connected with sludge pump 14 on the lifter plate 5, one side fixedly connected with inlet pipe 15 of sludge pump 14, the opposite side fixedly connected with discharging pipe 17 of sludge pump 14, the one end that sludge pump 14 was kept away from to inlet pipe 15 extends to the lower surface of shell 31, and inlet pipe 15 and shell 31 fixed connection.
Through the blade 2 that constantly rotates the decline slowly stir into comparatively thin mud with the sediment mud in whole sedimentation tank from top to bottom, use the inlet pipe 15 of sludge pump 14 also constantly to descend when descending simultaneously and take out mud, can be convenient clear up the mud of being thicker, can raise the efficiency.
The top of the screw rod body 8 is fixedly connected with a first gear 18, an output shaft of the second motor 12 is fixedly connected with a second gear 19, and the first gear 18 and the second gear 19 are in transmission connection with a transmission belt 11.
The number of the blades 23 is set to five, and the five blades 23 are disposed at equal angles centering on the axis of the central shaft 21. The blades 23 are five, so that mud can be scraped more cleanly during rotation, and stirring is more uniform.
Through opening third motor 34, third motor 34 drives first bevel gear 33 rotatory, first bevel gear 33 drives two second bevel gear 32 rotations, two second bevel gear 32 drive two center pin 21 rotations, and the direction of rotation of two second bevel gear 32 is opposite, two center pin 21 drive blade 23 through curb plate 22 and use center pin 21 as the center and rotate, can drive the opposite direction of rotation of blade 23 on two center pins 21, make blade 23 on two center pins 21 more even when stirring sediment mud, it is effectual to beat into mud.
The bottom of the shell 31 is fixedly connected with a conical projection 20, and the shape of the conical projection 20 is an inverted cone. Through the arrangement of the conical convex blocks 20, in the descending process of the shell 31, the conical convex blocks 20 can push the sludge at the bottom of the shell 31 to the outer side from the center and then stir the sludge, so that a good treatment effect can be achieved on the sludge right below the shell 31.
The use method of the sludge removal device for the circular sewage sedimentation tank comprises the following steps:
the method comprises the following steps: the first motor 10 is started, the first motor 10 rotates forwards and backwards alternately, the first motor 10 drives the rotating shaft 7 to rotate forwards and backwards alternately, and the rotating shaft 7 drives the fixed frame 16 to rotate forwards and backwards alternately by taking the rotating shaft 7 as a center;
step two: the third motor 34 is started, the third motor 34 drives the first bevel gear 33 to rotate, the first bevel gear 33 drives the two second bevel gears 32 to rotate, the two second bevel gears 32 drive the two central shafts 21 to rotate, the rotating directions of the two second bevel gears 32 are opposite, the two central shafts 21 drive the blade 23 to rotate by taking the central shaft 21 as the center through the side plate 22, and the rotating direction of the central shaft 21 connected with one second bevel gear 32 is opposite to the rotating direction of the central shaft 21 connected with the other second bevel gear 32;
step three: the second motor 12 is started, the second motor 12 drives the two first gears 18 to rotate, the two first gears 18 drive the two second gears 19 to rotate through the two transmission belts 11, the two second gears 19 respectively drive the two lead screw bodies 8 to rotate, so that the lead screw is matched with the two copper sleeves 9 on the lead screw bodies 8 to synchronously descend, the copper sleeves 9 are fixedly connected with the lifting plate 5, and the lifting plate 5 can descend together;
step four: when the blade 23 is in contact with the precipitated sludge layer, a small amount of water is intermittently added into the tank body 1, the rotating blade 23 scrapes off sludge on the upper layer of the precipitated sludge layer by layer in the gradual descending process, and then under the action of the rotating blade 23, the sludge adhered to the blade 23 is mixed into water, so that the upper layer of the precipitated sludge layer is slowly changed into a thin sludge layer;
step five: the sludge pump 14 is started, the feeding pipe 15 of the sludge pump 14 can pump out the sludge layer on the settled sludge layer, and then the sludge layer is pumped out through the discharging pipe 17, and the sludge layer can be continuously removed when the sludge layer descends;
step six: along with the continuous decline of lifter plate 5, the sludge blanket can constantly become the thin, can clear up the mud of bottom in the cell body 1 after the bottom laminating of blade 23 and cell body 1, at this moment second motor 12 reversal after accomplishing bottom mud clearance for lifter plate 5 resets, then cuts off power supply, accomplishes clearance once.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a mud removing device for circular sewage sedimentation tank, includes cell body (1), its characterized in that: two bases (6) are fixedly connected to two sides of the top of the pool body (1), an installation rack (4) is fixedly connected to the top of each base (6), a lifting plate (5) capable of moving up and down is arranged in each installation rack (4), a rotating shaft (7) is fixedly connected to the center of the bottom of each lifting plate (5), each rotating shaft (7) is vertically arranged, the axis of each rotating shaft (7) penetrates through the center of the pool body (1), a reduction gearbox (13) is connected to the top of each rotating shaft (7), a first motor (10) is connected to one side of each reduction gearbox (13), and each reduction gearbox (13) and each first motor (10) are fixedly connected to each lifting plate (5);
two lead screw assemblies are symmetrically arranged on two sides of the rotating shaft (7), each lead screw assembly comprises a lead screw body (8) and a copper sleeve (9), each lead screw body (8) is vertically arranged, the top of each lead screw body (8) is hinged to the corresponding mounting frame (4), the bottom of each lead screw body (8) is hinged to the corresponding base (6), a lead screw of each copper sleeve (9) is matched with each lead screw body (8), each copper sleeve (9) is fixedly connected with the corresponding lifting plate (5), the top of each mounting frame (4) is fixedly connected with a second motor (12), and each lead screw body (8) is in linkage connection with the corresponding second motor (12);
a fixing frame (16) is fixedly connected to the bottom end of the rotating shaft (7), the fixing frame (16) is arranged in an inverted L shape, the length of the fixing frame (16) is smaller than the inner diameter of the tank body (1), a shell (31) is fixedly connected to the middle of the bottom of the fixing frame (16), a vertically arranged third motor (34) is fixedly connected to the inside of the shell (31), a first bevel gear (33) is fixedly connected to an output shaft of the third motor (34), two second bevel gears (32) are meshed to one side of the first bevel gear (33), a central shaft (21) is fixedly connected to one side of each second bevel gear (32), one end of each central shaft (21) extends to the outside of the shell (31) and is hinged to the fixing frame (16), two side plates (22) are fixedly connected to each central shaft (21), and a blade (23) is fixedly connected between the two side plates (22);
fixedly connected with sludge pump (14) on lifter plate (5), one side fixedly connected with inlet pipe (15) of sludge pump (14), the opposite side fixedly connected with discharging pipe (17) of sludge pump (14), the one end that sludge pump (14) were kept away from in inlet pipe (15) extends to the lower surface of shell (31), and inlet pipe (15) and shell (31) fixed connection.
2. The sludge removing device for the circular sewage settling tank as claimed in claim 1, wherein: the feeding pipe (15) and the discharging pipe (17) are both arranged to be spring hoses.
3. The sludge removing device for the circular sewage settling tank as claimed in claim 1, wherein: the top of the screw rod body (8) is fixedly connected with a first gear (18), an output shaft of the second motor (12) is fixedly connected with a second gear (19), and the first gear (18) and the second gear (19) are in transmission connection with a transmission belt (11).
4. The sludge removing device for the circular sewage settling tank as claimed in claim 1, wherein: the number of the blades (23) is five, and the five blades (23) are arranged at equal angles by taking the axis of the central shaft (21) as the center.
5. The sludge removing device for the circular sewage settling tank as claimed in claim 1, wherein: the bottom of the shell (31) is fixedly connected with a conical projection (20), and the conical projection (20) is in an inverted cone shape.
6. The use method of the sludge removal device for the circular sewage sedimentation tank according to any one of claims 1 to 5, wherein: it comprises the following steps:
the method comprises the following steps: the first motor (10) is started, the first motor (10) rotates forward and backward alternately, the first motor (10) drives the rotating shaft (7) to rotate forward and backward alternately, and the rotating shaft (7) drives the fixing frame (16) to rotate forward and backward alternately by taking the rotating shaft (7) as a center;
step two: the third motor (34) is started, the third motor (34) drives the first bevel gear (33) to rotate, the first bevel gear (33) drives the two second bevel gears (32) to rotate, the two second bevel gears (32) drive the two central shafts (21) to rotate, the rotating directions of the two second bevel gears (32) are opposite, and the two central shafts (21) drive the blade (23) to rotate by taking the central shaft (21) as the center through the side plate (22);
step three: the second motor (12) is started, the second motor (12) drives the two first gears (18) to rotate, the two first gears (18) drive the two second gears (19) to rotate through the two transmission belts (11), the two second gears (19) respectively drive the two screw rod bodies (8) to rotate, so that the screw rod is matched with the two copper sleeves (9) on the screw rod bodies (8) to synchronously descend, the copper sleeves (9) are fixedly connected with the lifting plate (5), and the lifting plate (5) can descend together;
step four: when the blade (23) is in contact with the precipitated sludge layer, a small amount of water is intermittently added into the tank body (1), the rotating blade (23) can scrape the sludge on the upper layer of the precipitated sludge layer by layer in the gradual descending process, and then the sludge adhered to the blade (23) can be mixed into water under the action of the rotating blade (23), so that the upper layer of the precipitated sludge layer is slowly changed into a thin sludge layer;
step five: a sludge pump (14) is started, a feeding pipe (15) of the sludge pump (14) can pump out a sludge layer on the settled sludge layer, and then the sludge layer is pumped to the outside through a discharging pipe (17), and the sludge layer can be continuously removed when the sludge layer descends;
step six: along with the continuous decline of lifter plate (5), the sludge blanket can constantly become the thin, can clear up the mud of bottom in cell body (1) after the bottom laminating of blade (23) and cell body (1), at this moment second motor (12) reversal after accomplishing bottom mud clearance for lifter plate (5) reset, then cut off the power, accomplish clearance once.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010473618.5A CN111437639A (en) | 2020-05-29 | 2020-05-29 | Sludge removal device for circular sewage sedimentation tank and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010473618.5A CN111437639A (en) | 2020-05-29 | 2020-05-29 | Sludge removal device for circular sewage sedimentation tank and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111437639A true CN111437639A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010473618.5A Withdrawn CN111437639A (en) | 2020-05-29 | 2020-05-29 | Sludge removal device for circular sewage sedimentation tank and use method thereof |
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| CN (1) | CN111437639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961658A (en) * | 2022-12-26 | 2023-04-14 | 山东黄河工程集团有限公司 | River sludge cleaning and treating equipment |
-
2020
- 2020-05-29 CN CN202010473618.5A patent/CN111437639A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961658A (en) * | 2022-12-26 | 2023-04-14 | 山东黄河工程集团有限公司 | River sludge cleaning and treating equipment |
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Application publication date: 20200724 |