CN112302084A - Underwater sludge cleaning equipment - Google Patents

Underwater sludge cleaning equipment Download PDF

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Publication number
CN112302084A
CN112302084A CN202011217492.1A CN202011217492A CN112302084A CN 112302084 A CN112302084 A CN 112302084A CN 202011217492 A CN202011217492 A CN 202011217492A CN 112302084 A CN112302084 A CN 112302084A
Authority
CN
China
Prior art keywords
cavity
shaft
end wall
box
water inlet
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.)
Withdrawn
Application number
CN202011217492.1A
Other languages
Chinese (zh)
Inventor
马策
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingtian Heye Environmental Protection Technology Co ltd
Original Assignee
Qingtian Heye Environmental Protection Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingtian Heye Environmental Protection Technology Co ltd filed Critical Qingtian Heye Environmental Protection Technology Co ltd
Priority to CN202011217492.1A priority Critical patent/CN112302084A/en
Publication of CN112302084A publication Critical patent/CN112302084A/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/04—Loading devices mounted on a dredger or an excavator hopper dredgers, also equipment for unloading the hopper
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to the field of water pollution treatment, in particular to underwater sludge cleaning equipment which comprises a box body, wherein a purification box is arranged in the box body, a purification cavity is arranged in the purification box, a boiling water pipe communicated with the outside of the box body is arranged in the purification cavity, a drainage switch is fixedly arranged on the boiling water pipe, activated carbon is arranged on a fixing rod in the purification cavity, a sedimentation box is arranged in the box body, a sedimentation cavity is arranged in the sedimentation box, and a water pump is fixedly arranged on the rear end wall of the sedimentation cavity.

Description

Underwater sludge cleaning equipment
Technical Field
The invention relates to the field of water pollution treatment, in particular to underwater sludge cleaning equipment.
Background
Silt in the river course is piled up and often can be caused the river course to block up, and river water does not circulate the scheduling problem, and present desilting equipment is showing to large-scale river course desilting effect, but also only takes out the silt in the river course, does not to the certain purification effect of quality of water air flue, consequently is necessary to set up a submarine silt cleaning equipment and improves above-mentioned problem.
Disclosure of Invention
The invention aims to provide underwater sludge cleaning equipment which can overcome the defects in the prior art, so that the practicability of the equipment is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to underwater sludge cleaning equipment, which comprises a box body, wherein a purification box is arranged in the box body, a purification cavity is arranged in the purification box, a boiled water pipe communicated with the outside of the box body is arranged in the purification cavity, a drainage switch is fixedly arranged on the boiled water pipe, activated carbon is arranged on a fixed rod in the purification cavity, a sedimentation box is arranged in the box body, a sedimentation cavity is arranged in the sedimentation box, a water pump is fixedly arranged on the rear end wall of the sedimentation cavity, the water pump is provided with a water pump water inlet, a sludge box is arranged in the box body, a sludge cavity with a downward opening is arranged in the sludge box, a sludge outlet is communicated between the sedimentation cavity and the sludge cavity, an impurity cavity is arranged in the box body, an auger box extending into the impurity cavity is fixedly arranged on the upper end wall of the sludge box, and a small worm gear cavity, the auger shaft is arranged in the auger box and extends into the small worm gear cavity, auger blades are fixedly arranged in the auger box by the auger shaft, a plurality of drain holes are formed in the right end wall of the auger box and are communicated with the sedimentation cavity, a small worm gear is fixedly arranged in the small worm gear cavity by the auger shaft, a small worm shaft is rotatably arranged between the front end wall and the rear end wall of the small worm gear cavity, which small worm shaft is fixedly provided with a small worm meshed with the small worm gear, a motor is fixedly arranged in the box, a connecting cavity is arranged in the box, the motor is in power connection with a motor shaft which extends leftwards to the left end wall of the connecting cavity, a connecting device is arranged on the motor shaft, a gear transmission cavity is arranged in the box, a large belt wheel cavity is arranged in the box, and a driven large belt wheel shaft which extends downwards into the gear transmission cavity is rotatably arranged between the upper end, the driven large belt wheel shaft is provided with a transmission device in the gear transmission cavity, a large belt wheel shaft extending downwards into the connection cavity is arranged between the upper end wall and the lower end wall of the large belt wheel cavity in a Roentgen mode, a driven large belt wheel is fixedly arranged in the large belt wheel cavity, a driving large belt wheel is fixedly arranged in the large belt wheel cavity, and the driving large belt wheel is in transmission connection with the driven large belt wheel through a large belt.
Further, the connecting device comprises a motor shaft, a large worm is fixedly arranged in the connecting cavity, a large worm wheel shaft is rotatably arranged between the front end wall and the rear end wall of the connecting cavity, the large worm wheel shaft is in transmission connection with the small worm shaft through a packing auger box, a large worm wheel meshed with the large worm is fixedly arranged on the large worm wheel shaft, a driving large bevel gear is fixedly arranged on the motor shaft, a driven large bevel gear meshed with the driving large bevel gear is fixedly arranged on the large worm wheel shaft, a water inlet pipe communicated to the settling cavity is arranged on the left end wall of the connecting cavity, a connecting shaft sleeve is rotatably arranged on the water inlet pipe, a water inlet pipe cavity is arranged in the water inlet pipe, a water inlet pipe spring is fixedly arranged on the inner end wall of the connecting shaft sleeve, a water inlet pipe stop block is fixedly arranged at the tail end of the water, the motor shaft is fixedly provided with a large gear meshed with the small gear, the connecting shaft sleeve is rotatably provided with a connecting shaft sleeve in threaded connection with the motor shaft, the right end wall of the connecting cavity is fixedly provided with a purification cavity water inlet communicated with the purification cavity, the purification cavity water inlet is fixedly provided with a hose, a water outlet cavity is arranged in the purification cavity water inlet, an water outlet pipe spring is fixedly arranged on the inner wall of the purification cavity water inlet, the tail end of the water outlet pipe spring is fixedly provided with a water outlet pipe stop block, and the inner wall of the connecting shaft sleeve is in threaded connection with the outer wall of the purification cavity.
Further, the transmission device comprises a transmission shaft which is rotatably arranged between the upper end wall and the lower end wall of the gear transmission cavity, a driving large gear is fixedly arranged in the gear transmission cavity, a driven large pulley shaft is rotatably arranged between the upper end wall and the lower end wall of the gear transmission cavity, a cylinder shaft sleeve is arranged on the driven large pulley shaft through spline fit, a driven large gear meshed with the driving large gear is fixedly arranged on the cylinder shaft sleeve, a cylinder is arranged in the box body, the cylinder is in power connection with a push rod, the tail end of the push rod is fixedly provided with a push plate which is rotatably connected with the push rod, a rotatable baffle is arranged on the bottom wall of the sedimentation cavity, a baffle outlet is fixedly arranged on the baffle, a baffle is fixedly arranged on the bottom wall of the sedimentation cavity, and the tail end.
The invention has the beneficial effects that: the underwater sludge cleaning equipment provided by the invention can realize the separation of sludge and water in a river channel, the sludge is temporarily stored in the equipment and then discharged to the shore, and meanwhile, the water in the river channel can play a certain cleaning role in the equipment through the action of the settling tank and the purifying tank, so that the problem of water pollution is prevented to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of a water bottom sludge cleaning device of the present invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
FIG. 3 is a schematic diagram of B-B in FIG. 1.
Fig. 4 is an enlarged schematic view of C in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The underwater sludge cleaning equipment described in conjunction with the attached fig. 1-4 comprises a box body 10, a purification box 11 is arranged in the purification box 11, a purification cavity 14 is arranged in the purification box 11, a boiled water pipe 13 communicated with the outside of the box body 10 is arranged in the purification cavity 14, a drainage switch 12 is fixedly arranged on the boiled water pipe 13, activated carbon 15 is arranged on a fixed rod in the purification cavity 14, a sedimentation box 16 is arranged in the box body 10, a sedimentation cavity 17 is arranged in the sedimentation box 16, a water pump 44 is fixedly arranged on the rear end wall of the sedimentation cavity 17, the water pump 44 is provided with a water pump water inlet 18, a sludge box 46 is arranged in the box body 10, a sludge cavity 47 with a downward opening is arranged in the sludge box 46, a sludge outlet 73 is communicated between the sedimentation cavity 17 and the sludge cavity 47, an impurity cavity 30 is arranged in the box body 10, and an auger box 36 extending into the impurity cavity 30 is fixedly arranged on the upper end wall of the sludge, the utility model discloses a worm gear settling tank, including box 10, auger box 36, auger shaft 35, auger blade 37, auger blade 32, small worm wheel 33, small worm wheel 32, small worm wheel shaft 32, motor shaft 22, connecting device 101, gear transmission chamber 49, worm wheel transmission chamber 49, auger shaft 35, auger blade 37, auger box 36, auger shaft 35, worm wheel shaft 34, worm wheel shaft 32, motor shaft 22, connecting chamber 74, motor shaft 22, connecting device 101, worm wheel transmission chamber 49, worm wheel transmission chamber 33, worm wheel transmission chamber 34, auger blade 37, auger shaft 32, small worm wheel transmission chamber 31, worm wheel transmission chamber 32, worm wheel transmission chamber 31, worm wheel transmission chamber, the novel belt pulley is characterized in that a large belt pulley cavity 29 is formed in the box body 10, a driven large belt pulley shaft 38 extending downwards into the gear transmission cavity 49 is rotatably arranged between the upper end wall and the lower end wall of the large belt pulley cavity 29, a transmission device 102 is arranged in the gear transmission cavity 49 of the driven large belt pulley shaft 38, a large belt pulley shaft 61 extending downwards into the connection cavity 74 is arranged between the upper end wall and the lower end wall of the large belt pulley cavity 29 in a rotary manner, the driven large belt pulley shaft 38 is fixedly provided with a driven large belt pulley 39 in the large belt pulley cavity 29, a driving large belt pulley 28 is fixedly arranged in the large belt pulley cavity 29 of the large belt pulley shaft 61, and the driving large belt pulley 28 is in transmission connection with the driven large belt pulley 39 through a large belt 27.
Beneficially, the connecting device 101 includes the motor shaft 22, a large worm 63 is fixedly arranged in the connecting cavity 74, a large worm gear shaft 24 is rotatably arranged between the front end wall and the rear end wall of the connecting cavity 74, the large worm gear shaft 24 is in transmission connection with the small worm shaft 32 through an auger box 36, a large worm gear 23 engaged with the large worm 63 is fixedly arranged on the large worm gear shaft 24, a driving large bevel gear 68 is fixedly arranged on the motor shaft 22, a driven large bevel gear 62 engaged with the driving large bevel gear 68 is fixedly arranged on the large worm gear shaft 61, a water inlet pipe 69 communicated with the settling cavity 17 is arranged on the left end wall of the connecting cavity 74, a connecting shaft sleeve 42 is rotatably arranged on the water inlet pipe 69, a water inlet pipe cavity 72 is arranged in the water inlet pipe 69, a water inlet pipe spring 70 is fixedly arranged on the inner end wall of the connecting shaft sleeve 42, and a water inlet pipe stopper 71 is fixedly arranged, the fixed pinion 43 that is provided with of link bush 42 outer end wall, the fixed gear wheel 41 that is provided with pinion 43 meshing on the motor shaft 22, rotate on the link bush 42 be provided with motor shaft 22 threaded connection's link bush 42, link chamber 74 right-hand member wall fixed be provided with purify the purification chamber water inlet 19 of chamber 14 intercommunication, it is provided with hose 20 to purify fixed on the chamber water inlet 19, be provided with out water lumen 66 in the purification chamber water inlet 19, purify 19 inner walls of chamber water inlet and be provided with outlet pipe spring 65, outlet pipe spring 65 end is fixed and is provided with outlet pipe dog 67, link bush 42 inner wall with purify 19 outer wall threaded connection of chamber water inlet.
Advantageously, the transmission means 102 comprise a transmission shaft 50 rotatably arranged between the upper and lower end walls of the gear transmission chamber 49, the transmission shaft 50 is fixedly provided with a driving gearwheel 48 in the gear transmission cavity 49, a driven pulley shaft 38 is rotatably arranged between the upper end wall and the lower end wall of the gear transmission cavity 49, a cylinder shaft sleeve 52 is arranged on the driven pulley shaft 38 in a spline fit manner, a driven gearwheel 56 engaged with the driving gearwheel 48 is fixedly arranged on the cylinder shaft sleeve 52, a cylinder 51 is arranged in the box body 10, the cylinder 51 is in power connection with a push rod 53, a push plate 54 which is rotationally connected with the push rod 53 is fixedly arranged at the tail end of the push rod 53, a rotatable baffle 57 is arranged on the bottom wall of the settling chamber 17, a baffle outlet 58 is fixedly arranged on the baffle 57, a baffle 57 is fixedly arranged on the bottom wall of the settling chamber 17, and the tail end of the transmission shaft 50 extends upwards into the baffle 57.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
As shown in fig. 1-4, the sequence of mechanical actions of the entire device of the invention:
when the device starts to work, the motor 21 is started to drive the motor shaft 22 to rotate, the worm gear and worm are meshed to drive the large worm gear shaft 24 to rotate, the small worm shaft 32 is driven to rotate through belt transmission, the auger shaft 35 is driven to rotate through worm gear and worm meshing, so that sludge is conveyed into the impurity cavity 30, water enters the settling cavity 17 through the water discharge hole 45, the water pump 44 is started after settling, the fixing plate 40 is driven to move leftwards, so that the connecting shaft sleeve 42 is driven to move leftwards, the water inlet pipe stop 71 is contacted with the water outlet pipe stop 67, the water inlet pipe cavity 72 is communicated with the water outlet pipe cavity 66, water enters the purifying cavity 14, the drainage switch 12 is opened after being adsorbed by the activated carbon 15 and is discharged through the boiled water pipe 13, and when no water exists in the settling cavity 17, sludge is arranged on the bottom surface of the settling chamber 17, at this time, the motor shaft 22 rotates to drive the pulley shaft 61 to rotate through bevel gear transmission, the driven pulley shaft 38 is driven to rotate through belt transmission, the cylinder 51 is started, so that the driven gearwheel 56 is meshed with the driving gearwheel 48, the transmission shaft 50 is driven to rotate, the baffle 57 is driven to rotate, the positions of the bottom plate outlet 59 and the baffle outlet 58 are overlapped, the cylinder 51 is closed, sludge is discharged, the cylinder 51 is started again, and the bottom plate outlet 59 is closed.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (3)

1. The utility model provides a submarine silt clean-up equipment, includes the box, its characterized in that: the sludge purifying device is characterized in that a purifying box is arranged in the purifying box, a purifying cavity is arranged in the purifying cavity, the purifying cavity is provided with the boiled water pipe communicated with the outside of the box body, a drainage switch is fixedly arranged on the boiled water pipe, activated carbon is arranged on a fixed rod in the purifying cavity, a settling box is arranged in the box body, a settling cavity is arranged in the settling box, a water pump is fixedly arranged on the rear end wall of the settling cavity, the water pump is provided with a water inlet of the water pump, a sludge box is arranged in the box body, a sludge cavity with a downward opening is arranged in the sludge box, a sludge outlet is communicated between the settling cavity and the sludge cavity, an impurity cavity is arranged in the box body, an auger box extending into the impurity cavity is fixedly arranged on the upper end wall of the sludge box, a small worm gear cavity is arranged in the box body, the auger shaft is fixedly provided with an auger blade in the auger box, the right end wall of the auger box is provided with a plurality of drain holes communicated with the sedimentation cavity, the auger shaft is fixedly provided with a small worm wheel in the small worm wheel and worm cavity, a small worm shaft is rotatably arranged between the front end wall and the rear end wall of the small worm wheel and worm cavity, the small worm shaft is fixedly provided with a small worm meshed with the small worm wheel, a motor is fixedly arranged in the box body, the box body is internally provided with a connecting cavity, the motor is in power connection with a motor shaft extending leftwards to the left end wall of the connecting cavity, the motor shaft is provided with a connecting device, a gear transmission cavity is arranged in the box body, a large belt wheel cavity is arranged in the box body, a driven large belt wheel shaft extending downwards into the gear transmission cavity is rotatably arranged between the upper end wall and the lower end wall of the large belt wheel cavity, the upper end wall and the lower end wall of the large belt wheel cavity are provided with a large belt wheel shaft which extends downwards to the connecting cavity, the large belt wheel cavity is fixedly provided with a large driven belt wheel, the large belt wheel shaft is fixedly provided with a large driving belt wheel in the large belt wheel cavity, and the large driving belt wheel is in transmission connection with the large driven belt wheel through a large belt.
2. The apparatus for cleaning underwater sludge as claimed in claim 1, wherein: the connecting device comprises a motor shaft, a large worm is fixedly arranged in the connecting cavity, a large worm wheel shaft is rotatably arranged between the front end wall and the rear end wall of the connecting cavity, the large worm wheel shaft is in transmission connection with the small worm shaft through a packing auger box, a large worm wheel meshed with the large worm is fixedly arranged on the large worm wheel shaft, a driving large bevel gear is fixedly arranged on the motor shaft, a driven large bevel gear meshed with the driving large bevel gear is fixedly arranged on the large worm wheel shaft, a water inlet pipe communicated with the settling cavity is arranged on the left end wall of the connecting cavity, a connecting shaft sleeve is rotatably arranged on the water inlet pipe, a water inlet pipe cavity is arranged in the water inlet pipe, a water inlet pipe spring is fixedly arranged on the inner end wall of the connecting shaft sleeve, a water inlet pipe stop block is fixedly arranged at the tail end of, the motor shaft is fixedly provided with a large gear meshed with the small gear, the connecting shaft sleeve is rotatably provided with a connecting shaft sleeve in threaded connection with the motor shaft, the right end wall of the connecting cavity is fixedly provided with a purification cavity water inlet communicated with the purification cavity, the purification cavity water inlet is fixedly provided with a hose, a water outlet cavity is arranged in the purification cavity water inlet, an water outlet pipe spring is fixedly arranged on the inner wall of the purification cavity water inlet, the tail end of the water outlet pipe spring is fixedly provided with a water outlet pipe stop block, and the inner wall of the connecting shaft sleeve is in threaded connection with the outer wall of the purification cavity.
3. The apparatus for cleaning underwater sludge as claimed in claim 1, wherein: the transmission device comprises a transmission shaft which is arranged between the upper end wall and the lower end wall of the gear transmission cavity in a rotating mode, a driving large gear is fixedly arranged in the gear transmission cavity, a driven large belt wheel shaft is arranged between the upper end wall and the lower end wall of the gear transmission cavity in a rotating mode, a cylinder shaft sleeve is arranged on the driven large belt wheel shaft in a spline fit mode, a driven large gear meshed with the driving large gear is fixedly arranged on the cylinder shaft sleeve, a cylinder is arranged in the box body, a push rod is connected with the cylinder in a power mode, the tail end of the push rod is fixedly provided with a push plate which is connected with the push rod in a rotating mode, a rotatable baffle is arranged on the bottom wall of the settling cavity, a baffle outlet is fixedly formed in the baffle, and.
CN202011217492.1A 2020-11-04 2020-11-04 Underwater sludge cleaning equipment Withdrawn CN112302084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011217492.1A CN112302084A (en) 2020-11-04 2020-11-04 Underwater sludge cleaning equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011217492.1A CN112302084A (en) 2020-11-04 2020-11-04 Underwater sludge cleaning equipment

Publications (1)

Publication Number Publication Date
CN112302084A true CN112302084A (en) 2021-02-02

Family

ID=74325930

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011217492.1A Withdrawn CN112302084A (en) 2020-11-04 2020-11-04 Underwater sludge cleaning equipment

Country Status (1)

Country Link
CN (1) CN112302084A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116677066A (en) * 2023-05-26 2023-09-01 广州市鼎盛建设工程有限公司 Pipeline dredging method for trenchless large underground pipe network
CN116677067A (en) * 2023-05-26 2023-09-01 广州市鼎盛建设工程有限公司 Spiral extrusion dredging vehicle for trenchless large underground pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116677066A (en) * 2023-05-26 2023-09-01 广州市鼎盛建设工程有限公司 Pipeline dredging method for trenchless large underground pipe network
CN116677067A (en) * 2023-05-26 2023-09-01 广州市鼎盛建设工程有限公司 Spiral extrusion dredging vehicle for trenchless large underground pipeline

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WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210202