CN112108463A - Hydraulic engineering pipeline dredging method - Google Patents
Hydraulic engineering pipeline dredging method Download PDFInfo
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- CN112108463A CN112108463A CN202010859998.6A CN202010859998A CN112108463A CN 112108463 A CN112108463 A CN 112108463A CN 202010859998 A CN202010859998 A CN 202010859998A CN 112108463 A CN112108463 A CN 112108463A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
- E03F9/007—Devices providing a flushing surge
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a dredging method for a hydraulic engineering pipeline, which comprises the following steps: searching for a blockage position: put into small-size diving robot in water inlet department, follow the flow of water through small-size diving robot, after making a video recording the jam position, confirm through the waterproof cable of being connected with small-size diving robot and block up the position, then take out small-size diving robot, clean, prevent that the pollutant from damaging small-size diving robot. The dredging method can physically separate and chemically treat the dredged mud and water, is convenient for outward transportation and stacking, greatly reduces the volume of the separated sludge in outward transportation, clears the quality of the sewage after chemical treatment, and reflows to the sewage pipeline for cleaning again to ensure normal circulation.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a dredging method for a hydraulic engineering pipeline.
Background
The hydraulic engineering refers to various engineering (including new construction, extension, reconstruction, reinforcement, restoration, removal and other projects) such as flood control, waterlogging drainage, irrigation, hydroelectric generation, water diversion (supply), mud flat treatment, water and soil conservation, water resource protection and the like, and matching and auxiliary projects thereof, the pipeline dredging refers to dredging the pipeline, cleaning wastes such as sludge and the like in the pipeline, keeping the pipeline smooth for a long time to prevent the urban waterlogging, the pipeline is not periodically dredged to cause excessive sewage flow and pollute the environment, which brings troubles to the life of people, the dredging is carried out on the inner wall of the pipeline of the hydraulic engineering in the real life of people, the inner wall of the pipeline of the hydraulic engineering is generally dredged manually, the mode has large demand on manpower, the dredging cost is increased, time and labor are wasted, the working efficiency is reduced, and toxic gas can be generated when the sludge in the pipeline of the hydraulic engineering is accumulated for a long time, when the constructor works in the hydraulic engineering pipeline for a long time, physical injury can be caused, and therefore, the hydraulic engineering pipeline dredging method which can reduce the dredging cost of the inner wall of the hydraulic engineering pipeline, can improve the dredging work efficiency and protect the safety of the constructor is urgently needed to be researched.
Disclosure of Invention
The invention aims to provide a dredging method for a hydraulic engineering pipeline, which has the advantages of high efficiency and safety, and solves the problems that the existing dredging mode has large demand on manpower, increases the dredging cost, wastes time and labor, reduces the working efficiency, and the accumulation time of sludge wastes in the hydraulic engineering pipeline is long, toxic gas is generated, and constructors can cause physical injury when working in the hydraulic engineering pipeline for a long time.
In order to achieve the purpose, the invention provides the following technical scheme: a dredging method for a hydraulic engineering pipeline comprises the following steps:
searching for a blockage position:
put into small-size diving robot in water inlet department, follow the flow of water through small-size diving robot, after making a video recording the jam position, confirm through the waterproof cable of being connected with small-size diving robot and block up the position, then take out small-size diving robot, clean, prevent that the pollutant from damaging small-size diving robot.
And (II) planning a dredging position:
and determining the dredging port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized submersible robot and the scale marks on the surface of the waterproof cable, taking down the inspection well cover, and plugging the water inlet of the inspection well.
(III) arrangement of plugging work:
the water inlet of inspection shaft carries out preliminary work of holding back at first utilizing the plank, utilizes the grit to carry out preliminary landfill earlier before holding back and holds back, then fixes the plank through reinforcing apparatus, recycles waterproof board again at last and carries out waterproof work of holding back.
(IV) dredging:
A. the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well mouth, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through a spray hole in the underground sewage pipeline high-pressure dredging device, accumulated mud in the pipeline is impacted and cut, the accumulated mud in the pipeline is cut and crushed, and then the pipeline is discharged through a sewage slurry pump;
B. the sludge slurry separation equipment and the sludge-water separation equipment separate the discharged sludge and dirty water, so that the water content of the sludge is greatly reduced, and the sludge is convenient to stack and transport;
C. adding a chemical reagent into the separated dirty water to precipitate impurities, cleaning the water, and then recharging the dirty water into the pipeline to clean the inner wall of the pipeline again;
D. placing the small-sized diving robot into the pipeline again, carrying out shooting work, comparing the blocking condition of the pipeline before dredging, and detecting the dredging effect;
E. and packaging the sludge after the sludge treatment and transporting the sludge to a specified place, and finishing dredging.
Preferably, in the step one, the distance between the two inspection well covers is used as a distance measuring point, and the inspection is started from the water inlet.
Preferably, reinforcing apparatus in step three adopts the cross threaded rod, has the screwed pipe at the surperficial threaded connection of cross threaded rod, and the screwed pipe is kept away from the one end fixedly connected with rubber block of screwed pipe, adjusts the distance between rubber block and the pipeline inner wall through rotating the screwed pipe to can guarantee that the inner wall of cross threaded rod and pipeline carries out inseparable being connected, and then guaranteed the stability of plank.
Preferably, in the desilting work in step four, utilize small-size crushing car to carry out crushing work to debris such as large-scale impurity in the pipeline and stone before washing the breakage, utilize earlier chemical to carry out the chemical softening treatment to debris such as large-scale impurity in the pipeline and stone before crushing work, be convenient for carry out crushing work.
Preferably, the sludge treated in the fourth step is filled in waterproof bags, and each bag weighs 25-30 kg.
Compared with the prior art, the invention has the following beneficial effects:
the dredging method can physically separate and chemically treat the dredged mud and water, is convenient for outward transportation and stacking, greatly reduces the volume of the separated sludge in outward transportation, clears the quality of the sewage after chemical treatment, and reflows to the sewage pipeline for cleaning again to ensure normal circulation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that:
a dredging method for a hydraulic engineering pipeline comprises the following steps:
searching for a blockage position:
put into small-size diving robot in water inlet department, follow the flow of water through small-size diving robot, after making a video recording the jam position, confirm through the waterproof cable of being connected with small-size diving robot and block up the position, then take out small-size diving robot, clean, prevent that the pollutant from damaging small-size diving robot.
And (II) planning a dredging position:
and determining the dredging port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized submersible robot and the scale marks on the surface of the waterproof cable, taking down the inspection well cover, and plugging the water inlet of the inspection well.
(III) arrangement of plugging work:
the water inlet of inspection shaft carries out preliminary work of holding back at first utilizing the plank, utilizes the grit to carry out preliminary landfill earlier before holding back and holds back, then fixes the plank through reinforcing apparatus, recycles waterproof board again at last and carries out waterproof work of holding back.
(IV) dredging:
A. the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well mouth, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through a spray hole in the underground sewage pipeline high-pressure dredging device, accumulated mud in the pipeline is impacted and cut, the accumulated mud in the pipeline is cut and crushed, and then the pipeline is discharged through a sewage slurry pump;
B. the sludge slurry separation equipment and the sludge-water separation equipment separate the discharged sludge and dirty water, so that the water content of the sludge is greatly reduced, and the sludge is convenient to stack and transport;
C. adding a chemical reagent into the separated dirty water to precipitate impurities, cleaning the water, and then recharging the dirty water into the pipeline to clean the inner wall of the pipeline again;
D. placing the small-sized diving robot into the pipeline again, carrying out shooting work, comparing the blocking condition of the pipeline before dredging, and detecting the dredging effect;
E. and packaging the sludge after the sludge treatment and transporting the sludge to a specified place, and finishing dredging.
The first embodiment is as follows:
putting a small-sized diving robot at a water inlet, following the flow of water through the small-sized diving robot, determining a blocking position through a waterproof cable connected with the small-sized diving robot after shooting the blocking position, then taking the small-sized diving robot out, wiping the small-sized diving robot completely, preventing pollutants from damaging the small-sized diving robot, then determining a desilting port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized diving robot and scale marks on the surface of the waterproof cable, then taking down an inspection well cover, then performing blocking operation on the water inlet of the inspection well, firstly performing primary interception work on the water inlet of the inspection well by using a wood plate, firstly performing primary filling interception by using sand stones before interception, then fixing the wood plate by using a reinforcing device, and finally performing waterproof work again by using a waterproof plate, the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well opening, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through spray holes in the underground sewage pipeline high-pressure dredging device to impact and cut accumulated mud in the pipeline, the accumulated mud in the pipeline is cut and crushed, then the pipeline is discharged through a mud pump, discharged mud and dirty water are separated by mud and water separation equipment, the water content of the mud is greatly reduced, the mud is convenient to stack and transport, chemical reagents are added into separated dirty water, impurities are precipitated, the water quality is clear, then the mud is poured back into the pipeline, the inner wall of the pipeline is cleaned again, and a small submersible robot is placed into the pipeline again, carry out the work of making a video recording, the contrast pipeline jam condition before the mediation detects the desilting effect, and the mud packing after handling sludge is outward transported to appointed place, and the desilting is ended.
Example two:
in the first embodiment, the following steps are added:
in the first step, the distance between the two inspection well covers is used as a distance measuring point, and the inspection is started from the water inlet.
Putting a small-sized diving robot at a water inlet, following the flow of water through the small-sized diving robot, determining a blocking position through a waterproof cable connected with the small-sized diving robot after shooting the blocking position, then taking the small-sized diving robot out, wiping the small-sized diving robot completely, preventing pollutants from damaging the small-sized diving robot, then determining a desilting port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized diving robot and scale marks on the surface of the waterproof cable, then taking down an inspection well cover, then performing blocking operation on the water inlet of the inspection well, firstly performing primary interception work on the water inlet of the inspection well by using a wood plate, firstly performing primary filling interception by using sand stones before interception, then fixing the wood plate by using a reinforcing device, and finally performing waterproof work again by using a waterproof plate, the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well opening, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through spray holes in the underground sewage pipeline high-pressure dredging device to impact and cut accumulated mud in the pipeline, the accumulated mud in the pipeline is cut and crushed, then the pipeline is discharged through a mud pump, discharged mud and dirty water are separated by mud and water separation equipment, the water content of the mud is greatly reduced, the mud is convenient to stack and transport, chemical reagents are added into separated dirty water, impurities are precipitated, the water quality is clear, then the mud is poured back into the pipeline, the inner wall of the pipeline is cleaned again, and a small submersible robot is placed into the pipeline again, carry out the work of making a video recording, the contrast pipeline jam condition before the mediation detects the desilting effect, and the mud packing after handling sludge is outward transported to appointed place, and the desilting is ended.
Example three:
in the second embodiment, the following steps are added:
reinforcing apparatus in step three adopts the cross threaded rod, has the screwed pipe at the surperficial threaded connection of cross threaded rod, and the screwed pipe is kept away from the one end fixedly connected with block rubber of screwed pipe, adjusts the distance between block rubber and the pipeline inner wall through rotating the screwed pipe to can guarantee that the inner wall of cross threaded rod and pipeline carries out inseparable being connected, and then guaranteed the stability of plank.
Putting a small-sized diving robot at a water inlet, following the flow of water through the small-sized diving robot, determining a blocking position through a waterproof cable connected with the small-sized diving robot after shooting the blocking position, then taking the small-sized diving robot out, wiping the small-sized diving robot completely, preventing pollutants from damaging the small-sized diving robot, then determining a desilting port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized diving robot and scale marks on the surface of the waterproof cable, then taking down an inspection well cover, then performing blocking operation on the water inlet of the inspection well, firstly performing primary interception work on the water inlet of the inspection well by using a wood plate, firstly performing primary filling interception by using sand stones before interception, then fixing the wood plate by using a reinforcing device, and finally performing waterproof work again by using a waterproof plate, the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well opening, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through spray holes in the underground sewage pipeline high-pressure dredging device to impact and cut accumulated mud in the pipeline, the accumulated mud in the pipeline is cut and crushed, then the pipeline is discharged through a mud pump, discharged mud and dirty water are separated by mud and water separation equipment, the water content of the mud is greatly reduced, the mud is convenient to stack and transport, chemical reagents are added into separated dirty water, impurities are precipitated, the water quality is clear, then the mud is poured back into the pipeline, the inner wall of the pipeline is cleaned again, and a small submersible robot is placed into the pipeline again, carry out the work of making a video recording, the contrast pipeline jam condition before the mediation detects the desilting effect, and the mud packing after handling sludge is outward transported to appointed place, and the desilting is ended.
Example four:
in the third embodiment, the following steps are added:
during the desilting work in the fourth step, utilize small-size crushing car to carry out crushing work to debris such as large-scale impurity in the pipeline and stone before washing the breakage, utilize earlier chemical to carry out the chemical softening treatment to debris such as large-scale impurity in the pipeline and stone before crushing work, be convenient for carry out crushing work.
Putting a small-sized diving robot at a water inlet, following the flow of water through the small-sized diving robot, determining a blocking position through a waterproof cable connected with the small-sized diving robot after shooting the blocking position, then taking the small-sized diving robot out, wiping the small-sized diving robot completely, preventing pollutants from damaging the small-sized diving robot, then determining a desilting port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized diving robot and scale marks on the surface of the waterproof cable, then taking down an inspection well cover, then performing blocking operation on the water inlet of the inspection well, firstly performing primary interception work on the water inlet of the inspection well by using a wood plate, firstly performing primary filling interception by using sand stones before interception, then fixing the wood plate by using a reinforcing device, and finally performing waterproof work again by using a waterproof plate, the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well opening, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through spray holes in the underground sewage pipeline high-pressure dredging device to impact and cut accumulated mud in the pipeline, the accumulated mud in the pipeline is cut and crushed, then the pipeline is discharged through a mud pump, discharged mud and dirty water are separated by mud and water separation equipment, the water content of the mud is greatly reduced, the mud is convenient to stack and transport, chemical reagents are added into separated dirty water, impurities are precipitated, the water quality is clear, then the mud is poured back into the pipeline, the inner wall of the pipeline is cleaned again, and a small submersible robot is placed into the pipeline again, carry out the work of making a video recording, the contrast pipeline jam condition before the mediation detects the desilting effect, and the mud packing after handling sludge is outward transported to appointed place, and the desilting is ended.
Example five:
in the fourth example, the following steps were added:
and step four, filling the sludge after sludge treatment by waterproof bags, wherein the weight of each bag is 25-30 kg.
Putting a small-sized diving robot at a water inlet, following the flow of water through the small-sized diving robot, determining a blocking position through a waterproof cable connected with the small-sized diving robot after shooting the blocking position, then taking the small-sized diving robot out, wiping the small-sized diving robot completely, preventing pollutants from damaging the small-sized diving robot, then determining a desilting port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized diving robot and scale marks on the surface of the waterproof cable, then taking down an inspection well cover, then performing blocking operation on the water inlet of the inspection well, firstly performing primary interception work on the water inlet of the inspection well by using a wood plate, firstly performing primary filling interception by using sand stones before interception, then fixing the wood plate by using a reinforcing device, and finally performing waterproof work again by using a waterproof plate, the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well opening, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through spray holes in the underground sewage pipeline high-pressure dredging device to impact and cut accumulated mud in the pipeline, the accumulated mud in the pipeline is cut and crushed, then the pipeline is discharged through a mud pump, discharged mud and dirty water are separated by mud and water separation equipment, the water content of the mud is greatly reduced, the mud is convenient to stack and transport, chemical reagents are added into separated dirty water, impurities are precipitated, the water quality is clear, then the mud is poured back into the pipeline, the inner wall of the pipeline is cleaned again, and a small submersible robot is placed into the pipeline again, carry out the work of making a video recording, the contrast pipeline jam condition before the mediation detects the desilting effect, and the mud packing after handling sludge is outward transported to appointed place, and the desilting is ended.
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 (5)
1. A dredging method for hydraulic engineering pipelines is characterized in that: the method comprises the following steps:
searching for a blockage position:
put into small-size diving robot in water inlet department, follow the flow of water through small-size diving robot, after making a video recording the jam position, confirm through the waterproof cable of being connected with small-size diving robot and block up the position, then take out small-size diving robot, clean, prevent that the pollutant from damaging small-size diving robot.
And (II) planning a dredging position:
and determining the dredging port closest to the blocking position according to the found blocking position, knowing the specific blocking position according to the shot image of the small-sized submersible robot and the scale marks on the surface of the waterproof cable, taking down the inspection well cover, and plugging the water inlet of the inspection well.
(III) arrangement of plugging work:
the water inlet of inspection shaft carries out preliminary work of holding back at first utilizing the plank, utilizes the grit to carry out preliminary landfill earlier before holding back and holds back, then fixes the plank through reinforcing apparatus, recycles waterproof board again at last and carries out waterproof work of holding back.
(IV) dredging:
A. the underground sewage pipeline high-pressure dredging device is lowered to an inner cavity of a pipeline through an inspection well mouth, a camera and a lighting lamp are fixedly connected to the surface of the underground sewage pipeline high-pressure dredging device, the real-time situation of dredging work can be photographed and transmitted, the orderly dredging work is further ensured, high-pressure water flow is sprayed out through a spray hole in the underground sewage pipeline high-pressure dredging device, accumulated mud in the pipeline is impacted and cut, the accumulated mud in the pipeline is cut and crushed, and then the pipeline is discharged through a sewage slurry pump;
B. the sludge slurry separation equipment and the sludge-water separation equipment separate the discharged sludge and dirty water, so that the water content of the sludge is greatly reduced, and the sludge is convenient to stack and transport;
C. adding a chemical reagent into the separated dirty water to precipitate impurities, cleaning the water, and then recharging the dirty water into the pipeline to clean the inner wall of the pipeline again;
D. placing the small-sized diving robot into the pipeline again, carrying out shooting work, comparing the blocking condition of the pipeline before dredging, and detecting the dredging effect;
E. and packaging the sludge after the sludge treatment and transporting the sludge to a specified place, and finishing dredging.
2. The dredging method for the hydraulic engineering pipeline according to claim 1, wherein the dredging method comprises the following steps: in the first step, the distance between the two inspection well covers is used as a distance measuring point, and the inspection is started from the water inlet.
3. The dredging method for the hydraulic engineering pipeline according to claim 1, wherein the dredging method comprises the following steps: reinforcing apparatus in step three adopts the cross threaded rod, has the screwed pipe at the surperficial threaded connection of cross threaded rod, and the screwed pipe is kept away from the one end fixedly connected with block rubber of screwed pipe, adjusts the distance between block rubber and the pipeline inner wall through rotating the screwed pipe to can guarantee that the inner wall of cross threaded rod and pipeline carries out inseparable connection, and then guaranteed the stability of plank.
4. The dredging method for the hydraulic engineering pipeline according to claim 1, wherein the dredging method comprises the following steps: during the desilting work in step four, utilize small-size crushing car to carry out crushing work to debris such as large-scale impurity in the pipeline and stone before washing the breakage, utilize earlier chemical to carry out the chemical softening treatment to debris such as large-scale impurity in the pipeline and stone before crushing work, be convenient for carry out crushing work.
5. The dredging method for the hydraulic engineering pipeline according to claim 1, wherein the dredging method comprises the following steps: and step four, filling the sludge treated by the sludge in waterproof bags, wherein the weight of each bag is 25-30 kg.
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| CN117399401A (en) * | 2023-12-13 | 2024-01-16 | 中铁发展投资有限公司 | Intelligent rainwater and sewage pipe network treatment device and method |
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| 朱邦范: "《工程设计技术手册》", 31 January 2017 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860689A (en) * | 2021-11-16 | 2021-12-31 | 中冶建工集团有限公司 | Black and odorous water body sludge treatment process |
| CN117399401A (en) * | 2023-12-13 | 2024-01-16 | 中铁发展投资有限公司 | Intelligent rainwater and sewage pipe network treatment device and method |
| CN117399401B (en) * | 2023-12-13 | 2024-04-30 | 中铁发展投资有限公司 | Intelligent rainwater and sewage pipe network treatment device and method |
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