CN111018279B - In-situ loosening and repairing system for river and lake sediment and application method thereof - Google Patents
In-situ loosening and repairing system for river and lake sediment and application method thereof Download PDFInfo
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- CN111018279B CN111018279B CN201911378621.2A CN201911378621A CN111018279B CN 111018279 B CN111018279 B CN 111018279B CN 201911378621 A CN201911378621 A CN 201911378621A CN 111018279 B CN111018279 B CN 111018279B
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- bottom mud
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- 239000013049 sediment Substances 0.000 title claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003814 drug Substances 0.000 claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 230000002787 reinforcement Effects 0.000 claims abstract description 19
- 229940079593 drug Drugs 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000003213 activating effect Effects 0.000 claims abstract description 7
- 238000012876 topography Methods 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 8
- 241001465754 Metazoa Species 0.000 description 4
- 239000011324 bead Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 108700023707 TUG1 Proteins 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000192700 Cyanobacteria Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a use method of a river and lake sediment in-situ loosening and repairing system, wherein a repairing medicament is filled in a dispensing tank, and a steel wire pull rope for dragging, a balance steel wire pull rope, a reinforcement rope and a medicament adding pipe are respectively connected with a spiral loosening and medicament injecting system; slowly placing the spiral loose drug injection system under water; firstly, setting a constant-pressure tank pressure interval, then starting a grouting pump, starting a tug to move forward, and focusing on underwater topography photographed by a video receiver through an underwater camera; along with the movement of the tugboat, the spiral plow blades can drive the hollow pipe to continuously rotate so as to loosen the bottom mud once, and meanwhile, the bottom mud is carried away from the water bottom and falls to the water bottom by the plurality of side ploughshare plow blades on the spiral plow blades so as to realize the loosening and activation of the bottom mud; the method comprises the steps that when the bottom mud is loosened and activated, a grouting pump sequentially passes through a plurality of nozzles of a constant-pressure tank, a dosing pipe and a dosing main pipe to spray the medicament into the loosened bottom mud; the continuous circulation is carried out, and the effects of loosening, activating and improving the bottom mud are achieved.
Description
Technical Field
The invention relates to the field of river and lake sediment repair equipment, in particular to a system for in-situ loosening and repairing of river and lake sediment and a use method thereof, which are used for in-situ loosening, activating and improving of the river and lake sediment.
Background
Animal and plant residues, organic matters and nutrient salts accumulated in the water for many years cause anaerobic black odor of the sediment, and the pollutants are continuously released to the water, so that the phenomena of black odor of river channels, cyanobacteria bloom, peculiar smell volatilization and ecological unbalance are commonly existed. In the previous years, the method for dredging and dredging the sediment in a large area is generally adopted, and practice proves that the method damages the survival and inhabiting environments of beneficial flora, microorganisms and benthonic animals in a river channel, seriously influences the balance construction of an ecological system, causes the water body to lose self-cleaning capacity, and has remarkable negative effects. A great deal of scientific research shows that the river and lake sediment is an important ring for constructing ecological balance based on living benthonic animals, aquatic plants and microorganisms, and is increasingly valued by water environment treatment industry personnel in recent years, so that in-situ ecological restoration of the river and lake sediment is gradually promoted.
At present, the following modes are commonly adopted in engineering practice to carry out in-situ repair on the bottom mud:
1. draining river or lake water, spraying specific chemical agent onto the surface of the bottom mud, and mixing the bottom mud with chemical agent with the bottom mud surface soil with the bucket ruler of excavator or manually to realize stabilization or other decomposition reaction of the bottom mud. The technology needs to drain river or lake water and has the equipment approach operation condition, so that precious water resources are wasted on one hand, and on the other hand, the dosage of the medicament is very uneven due to the factor of manual throwing. In addition, after stabilization, the pollutants are less likely to be released, so that the living environment of benthonic animals, aquatic plants and microorganisms is greatly compromised.
2. The operator holds a medicament spray gun, directly stretches the medicament spray gun into the water by 50cm-100cm or even deeper, and sprays the medicament spray gun towards the bottom mud by utilizing the high pressure action of the pneumatic pump, so that the mode is a common practice at present. However, long-term practice has proven to have several problems:
1) One spray gun is provided with only one nozzle, the number of the nozzles is limited, the coverage area of one operation is small, operators are easy to fatigue, and the efficiency and the uniformity of spraying are not good.
2) Because the conventional pneumatic pump often has the common problems of air flow pulsation, oil in air and the like, the pneumatic pump has instability and pollution to a certain extent, and the injected medicine amount is not well metered.
3) The spray gun does not go deep into the bottom mud, a thicker water layer still exists between the spray gun and the bottom mud, no visual equipment exists, the mixing effect of medicament and bottom mud is irrespectively, and a large amount of medicament is wasted.
4) The device for turning over the bottom mud is lacking, so that the bottom mud cannot be effectively loosened and activated, and release of organic pollutants and nutrient salts is not facilitated.
3. In addition, a bottom mud scarifying device with rake teeth is provided, and grouting nozzles are bound on the cross beams of the rake teeth, but as the bottom mud of the river is not soft and homogeneous as one imagines, almost all river contacted with the bottom mud is not smooth as one ideal, and impurities such as stones and hard objects exist in the bottom mud more or less, especially for the bridge with a protection or river crossing on two sides, the situation is particularly common. This leads to the existence of several problems:
1) When larger stones or hard objects are encountered, the rake teeth cannot pass over, and when the larger stones or hard objects are hooked, dragging difficulties occur, and even the rake teeth are damaged and fall off.
2) When the rake teeth meet uneven ground, the rake teeth are easy to turn over, so that the whole system cannot work normally, and the whole system is stopped when being used, and even cannot be used.
3) The rake teeth have limited influence and disturbance on the bottom mud, and can not sufficiently loosen and activate the bottom mud.
4. The prepared tablets or beads are adopted by the industry, and are thrown onto the river and lake sediment when in use, and peripheral sediment is subjected to oxidative decomposition or corresponding treatment through slow release. This approach is also currently common practice. The technology is simple and feasible for operators, saves time, and is suitable for water bodies with larger areas and low pollution degree. The following problems still remain:
1) The uniformity of the dispensing stage is difficult to control by manually dispensing the tablets or beads.
2) During the process of dropping the tablets or the beads to the bottom mud, operators cannot control the underwater track of the tablets or the beads due to the turbulence of the water body.
3) Because the buoyancy of water effect, tablet or ball can slowly fall into water, until above the bed mud top layer, can't reach certain degree of depth, so this kind of treatment is more prone to the bed mud pollution on the bed mud top layer in the certain limit of tablet or ball drop point, and is very little to the bed mud pollution of darker.
5. Referring to the related literature data at the present stage, there are some patent technology bottom mud medicine injection devices, such as simple devices used for researching and treating medicines at the laboratory stage; if the fixed point location application measures are adopted, the fixed point location application measures cannot be moved at any time, and only the full-coverage point distribution application can be carried out on the sediment along the river, so that the fixed point location application measures do not meet the actual requirements of long-line, large-area, low-cost and high-efficiency treatment of black and odorous water bodies of the river and the lake, and secondary pollution is formed on the sediment of the river by residual auxiliary application materials in the later period.
Aiming at the defects of the technology and the actual requirements of black and odorous water body sediment treatment, a practical riverway sediment in-situ loosening and repairing device is found, and the device becomes an urgent key problem.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a system and a method for in-situ loosening and repairing of river and lake bottom mud, which are used for in-situ loosening and activating and improving of the river and lake bottom mud and have the characteristics of convenience in control, high efficiency, stable operation quality and strong practicability, aiming at the technical requirements of in-situ loosening and repairing of the river and lake bottom mud and the specificity of underwater operation.
The invention adopts the technical proposal for realizing the aim that: the in-situ loosening and repairing system for river and lake bottom mud comprises a tugboat, a dispensing tank, a grouting pump, a constant pressure tank, a winch, a fixed roller I, a fixed roller II, a rotary hoisting frame, an underwater camera and a video receiver; the method is characterized in that: the device also comprises a spiral loosening drug injection system;
the spiral loosening and medicine injection system comprises an underwater bracket and a bottom mud loosening and turning device;
the underwater bracket consists of a medicament main pipe, side walls and an elastic rubber pad;
two ends of the main pipe of the medicament are respectively fixed with a side wall, namely, external threads I at two ends of the main pipe of the medicament are in threaded connection with internal threads of the pipe interfaces of the two side walls, an elastic rubber pad is arranged between two ports of the main pipe of the medicament and the inner sealing surface of the pipe interface, and a plurality of nozzles are horizontally arranged on the main pipe of the medicament at intervals;
the bottom mud loosening and turning device comprises a hollow pipe, a spiral plough piece, a side ploughshare plough piece, a self-lubricating bearing, an end pipe and a traction shaft;
two sets of spiral plough blades are arranged on the hollow pipe, the spiral directions of the two sets of spiral plough blades are opposite, and a plurality of side ploughshare plough blades are arranged on one side surface of each set of spiral plough blades at intervals;
the two self-lubricating bearings are respectively embedded into large-diameter shafts of one traction shaft for close fit, the two self-lubricating bearings are respectively arranged in two ends of the hollow tube, the self-lubricating bearings are in sliding fit with the inner wall of the hollow tube, two ends of the hollow tube are respectively fixed with one end tube, and small-diameter shafts of the two traction shafts respectively extend out of shaft holes II of the two end tubes;
the bottom mud loosening and turning device is fixed on two side walls of the underwater bracket, namely small diameter shafts at two ends of the hollow pipe respectively extend out of shaft holes I of the two side walls,
the wire rope hole of each small-diameter shaft is respectively connected with one end of a balance wire rope;
the injection openings of a plurality of injection nozzles on the medicine main pipe point to the axle center of the hollow pipe;
the deck of the tugboat is sequentially provided with a video receiver, a dispensing tank, a grouting pump, a constant pressure tank, a rotary hoisting frame, a winch, a fixed rolling shaft I and two positioning columns, the bottom of the bow of the tugboat is provided with an underwater camera, the tail end of the tugboat is provided with a fixed rolling shaft II, and the fixed rolling shaft I and the fixed rolling shaft II are correspondingly arranged with the winch;
the winch is provided with steel wire pull ropes, the steel wire pull ropes penetrate through the space between the fixed rolling shafts I and II to be fixed with the node ring, and the other ends of the two balanced steel wire pull ropes are fixed with the node ring;
one end of each of the two reinforcement ropes is respectively connected with the hanging ring I at the upper ends of the two side walls,
the other ends of the two reinforcement ropes are respectively fixed on the two positioning columns;
the dispensing tank is connected with a medicine inlet of the constant pressure tank through a grouting pump, and a medicine outlet of the constant pressure tank is connected with two medicine pipe connectors of the medicine main pipe through a medicine adding pipe respectively;
the underwater camera is connected with the video receiver.
The application method of the in-situ loosening and repairing system for river and lake bottom mud is characterized by comprising the following steps:
firstly, preparing a repairing medicament in a dispensing tank according to the calculated concentration of the liquid medicament, and connecting a steel wire pull rope for dragging, a balance steel wire pull rope, a reinforcement rope and a medicament adding pipe with a spiral loosening medicament injection system respectively;
the spiral loosening and drug injecting system is slowly put under water by the rotary hoisting frame through the cooperation of the steel wire rope and the hollow pipe hanging ring II, after water is put in, water is injected from the plurality of water pressure balance holes of the hollow pipe until the plurality of water pressure balance holes of the hollow pipe are not bubbling, so that the gravity of the underwater spiral loosening and drug injecting system is increased, and the contact stability of the spiral plough piece and the river bottom is ensured;
secondly, the steel wire rope on the hanging ring II is taken off, then the tug is started slowly, the steel wire rope and the reinforcement rope are put down to a proper stress angle through the winch while the tug moves forwards, the tug movement and the rotation of the winch are stopped, and the reinforcement rope is fixed on two positioning columns;
step three, when in operation, firstly setting a constant pressure tank pressure interval, then starting a grouting pump, starting a tug to move forward, and simultaneously focusing on underwater topography photographed by a video receiver through an underwater camera;
the bottom mud is loosened once by the rotation of the spiral plough blades under the action of gravity of the spiral loosening and medicine injection system, and meanwhile, the bottom mud is carried away from the water bottom by the plurality of side plough blades arranged on the spiral plough blades, and the bottom mud slides down to the water bottom after moving upwards for a certain distance along with the rotation of the side plough blades, so that the loosening and activation of the bottom mud are realized;
the method comprises the steps that when the bottom mud is loosened and activated, a grouting pump injects a medicament solution prepared in a dispensing tank into a constant pressure tank, the constant pressure tank presses the medicament solution with constant pressure to a medicament main pipe through medicament adding pipes on the left side and the right side, and the medicament is sprayed into the loosened bottom mud through a plurality of nozzles of the medicament main pipe under certain pressure;
the continuous circulation is carried out, and the effects of loosening, activating and improving the bottom mud are achieved;
and fourthly, after finishing, closing the grouting pump, gradually slowing down the ship speed until the tug stops, starting the winch, slowly pulling the spiral loose injection system to one side of the stern until the node ring is exposed out of the water surface, hooking the node ring by using a steel wire rope hanging hook on the rotary hoisting frame, hanging the spiral loose injection system out of the water surface, and after a plurality of water pressure balance holes of the hollow pipe are not discharged outwards, hanging the spiral loose injection system into a ship cabin to be well, and simultaneously, synchronously collecting the steel wire pull ropes, the balance steel wire pull ropes, the reinforcement ropes and the dosing pipes.
The beneficial effects of the invention are as follows:
1. the rolling type running mode of the sediment loosening and turning device has strong adaptability and good stability, and can adapt to most of underwater terrains.
2. The structural design of the spiral plough blade and the side ploughshare plough blade can loosen and turn the bottom mud twice continuously, the working efficiency is high, the loosening and activating effect of the bottom mud is enhanced, pollutants in the bottom mud are fully released, the contact efficiency of the medicament and the bottom mud is improved, and the repairing effect of the medicament on the bottom mud is effectively enhanced.
3. The injection ports of the plurality of injection nozzles on the medicament main pipe point to the axle center of the hollow pipe, no matter what angle the traction steel wire stay rope is, the injection direction of the medicament injection nozzles can always point to activated sludge, so that the medicament can realize the optimal contact state with the bottom sludge, and the repairing effect of the medicament is greatly improved.
4. After the hollow pipe is lifted out of the water, the water in the hollow pipe is discharged from the water pressure balance hole, and after the water is filled in, the water is filled in from the water pressure balance hole, so that the self light weight is ensured, the gravity of the underwater spiral loosening and medicine injection system is increased, and the stability of the bottom mud loosening and turning device in the working state is improved.
5. The self-lubricating bearing has good lubricating effect, and the underwater operation is not required to be maintained.
6. The grouting pump adopts a constant-pressure grouting device of the patent ZL201610653029.9, the injected medicament quantity is convenient to calculate, and the automation and standardization of the control of the pressure and the dosage of the liquid medicament can be realized.
7. By adopting the underwater visualization equipment, the underwater topography to be operated in front can be observed at any time, and adverse topography can be reasonably avoided or treated in advance.
In a word, the invention has the advantages of simple structure, relatively high degree of mechanization, easy use, reduced labor intensity, capability of avoiding various uncertain quality defects caused by human fatigue, convenience in control, high efficiency, stable operation quality and strong practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of structure A of FIG. 1;
FIG. 3 is an enlarged view of structure AI of FIG. 2;
FIG. 4 is a schematic view of the structure of the spiral blade and side plow of the present invention;
FIG. 5 is a schematic view of the structure of a side plow blade of the present invention;
FIG. 6 is an exploded view of the underwater cradle and sediment loosening and turning device of the present invention;
FIG. 7 is a schematic view of the traction axle of the present invention;
FIG. 8 is a schematic view of the structure of the side wall of the present invention;
FIG. 9 is an enlarged view of structure C of FIG. 1;
fig. 10 is an enlarged view of structure B of fig. 1.
Detailed Description
As shown in figures 1 to 10 of the drawings,
the in-situ loosening and repairing system for river and lake bottom mud comprises a tugboat 1, a positioning column 1-1, a dispensing tank 2, a grouting pump 3, a constant pressure tank 4, a winch 5, a fixed roller I5-1, a fixed roller II 5-2, a rotary hoisting frame 6, an underwater camera 7 and a video receiver 8; also comprises a spiral loose drug injection system 9.
The spiral loosening and medicine injection system 9 comprises an underwater bracket and a bottom mud loosening and turning device.
The underwater bracket is composed of a medicament main pipe 9-1, a side wall 9-2 and an elastic rubber pad 9-3.
Two ends of the main pipe 9-1 are respectively provided with a section of external thread I9-1-1, a plurality of nozzles 9-1-2 are horizontally arranged on the main pipe 9-1 at intervals, two ends of the main pipe 9-1 are respectively provided with a medicine pipe interface 9-1-3, and the plurality of nozzles 9-1-2 and the two medicine pipe interfaces 9-1-3 are respectively communicated with the inner cavity of the main pipe 9-1.
The side wall 9-2 is a trapezoid wall, a shaft hole I9-2-1 is formed in the wall surface of the wide end of the side wall 9-2, two symmetrical limit keys 9-2-1-1 are arranged on the inner face of the shaft hole I9-2-1, a pipe joint 9-2-2 with one closed end is arranged at the upper end of the wall surface of the narrow end of the side wall 9-2, internal threads are arranged in the pipe joint 9-2-2, and a hanging ring I9-2-3 is arranged on the side wall of the upper end of the side wall 9-2.
Two ends of the main pipe 9-1 are respectively fixed with a side wall 9-2, namely, external threads I9-1-1 at two ends of the main pipe 9-1 are in threaded connection with internal threads of pipe interfaces 9-2-2 of the two side walls 9-2, an elastic rubber pad 9-3 is arranged between two ports of the main pipe 9-1 and an inner sealing surface of the pipe joint 9-2-2, a plurality of nozzles 9-1-2 are horizontally arranged on the main pipe 9-1 at intervals, and injection ports of the nozzles 9-1-2 point to the axle center of the hollow pipe 9-4.
The bottom mud loosening and turning device comprises a hollow pipe 9-4, a spiral plough piece 9-5, a side ploughshare plough piece 9-6, a self-lubricating bearing 9-7, an end pipe 9-8 and a traction shaft 9-9.
Two ends of the hollow pipe 9-4 are respectively provided with a section of external thread II 9-4-1, a plurality of water pressure balance holes 9-4-2 and a hanging ring II 9-4-3 are horizontally arranged on the pipe wall of the hollow pipe 9-4 at intervals, two sets of spiral plough blades 9-5 are arranged on the hollow pipe 9-4, a plurality of side plough blades 9-6 are arranged on one side surface of each set of spiral plough blades 9-5 at intervals, and the spiral directions of the two sets of spiral plough blades 9-5 are opposite.
One end face of the end pipe 9-8 is provided with a shaft hole II 9-8-1, and the inner wall of the opening at the other end of the end pipe 9-8 is provided with a section of internal thread.
The traction shaft 9-9 is composed of a large-diameter shaft 9-9-1 and a small-diameter shaft 9-9-2 which are integrally formed, two key grooves 9-9-2-1 and one steel wire rope hole 9-9-2-2 are formed in the small-diameter shaft 9-9-2, and the two key grooves 9-9-2-1 are symmetrically arranged.
The two self-lubricating bearings 9-7 are respectively embedded into a large-diameter shaft 9-9-1 of a traction shaft 9-9 in a tight fit manner, the two self-lubricating bearings 9-7 are respectively arranged in two ends of the hollow tube 9-4, the self-lubricating bearings 9-7 are in sliding fit with the inner wall of the hollow tube 9-4, two ends of the hollow tube 9-4 are respectively connected with two end tubes 9-8 in a threaded manner through external threads II 9-4-1, and small-diameter shafts 9-9-2 of the two traction shafts 9-9 extend out of shaft holes II 9-8-1 of the two end tubes 9-8 respectively.
The bottom mud loosening and turning device is fixed on two side walls 9-2 of an underwater bracket, namely small-diameter shafts 9-9-2 at two ends of a hollow pipe 9-4 respectively extend out of shaft holes I9-2-1 of the two side walls 9-2, and two limit keys 9-2-1-1 on the two side walls 9-2 are respectively arranged in two key grooves 9-9-2-1 of the small-diameter shafts 9-2.
The deck of the tugboat 1 is sequentially provided with a video receiver 8, a dispensing tank 2, a grouting pump 3, a constant pressure tank 4, a rotary hoisting frame 6, a winch 5 and a fixed roller I5-1, two sides of the fixed roller I5-1 are respectively provided with a positioning column 1-1, the bottom of the bow of the tugboat 1 is provided with an underwater camera 7, the tail end of the tugboat 1 is provided with a fixed roller II 5-2, and the fixed roller I5-1 and the fixed roller II 5-2 are correspondingly arranged with the winch 5.
The winch 5 is provided with a steel wire pull rope 5-3, the steel wire pull rope 5-3 passes through a space between the fixed rolling shaft I5-1 and the fixed rolling shaft II 5-2 and is fixed with the node ring 5-5, one ends of the two balance steel wire pull ropes 5-4 are fixed with the node ring 5-5, the other ends of the two balance steel wire pull ropes 5-4 are respectively connected with the steel wire rope holes 9-9-2-2 of the small-diameter shaft 9-9-2, one ends of the two reinforcement ropes 5-6 are respectively connected with the hanging rings I9-2-3 at the upper ends of the two side walls 9-2, and the other ends of the two reinforcement ropes 5-6 are respectively fixed on the two positioning columns 1-1.
The dispensing tank 2 is connected with a medicine inlet of the constant pressure tank 4 through the grouting pump 3, and a medicine outlet of the constant pressure tank 4 is respectively connected with two medicine pipe interfaces 9-1-3 of the medicine main pipe 9-1 through the medicine adding pipes 2-1;
the underwater camera 7 is connected to a video receiver 8.
The application method of the in-situ loosening and repairing system for river and lake bottom mud comprises the following steps:
firstly, preparing a repairing medicament in a dispensing tank 2 according to the calculated concentration of the medicament liquid, and connecting a steel wire pull rope 5-3 for dragging, a balance steel wire pull rope 5-4, a reinforcement rope 5-6 and a medicament adding pipe 2-1 with a spiral loosening medicament injection system 9;
the spiral loose injection system 9 is slowly placed under water by the rotary hoisting frame 6 through the cooperation of a steel wire rope and the hanging rings II 9-4-3 of the hollow pipe 9-4, after water is filled, water is filled from the water pressure balance holes 9-4-2 of the hollow pipe 9-4 until the water pressure balance holes 9-4-2 of the hollow pipe 9-4 are not bubbling, so that the gravity of the underwater spiral loose injection system 9 is increased, and the contact stability of the spiral plough piece 9-5 and the river bottom is ensured.
And secondly, picking up the steel wire rope on the lifting ring II 9-4-3, then slowly starting the tug 1, and simultaneously, lowering the steel wire pull rope 5-3 and the reinforcement rope 5-6 to a proper stress angle through the winch 5 while the tug 1 moves forwards, stopping the movement of the tug 1 and the rotation of the winch 5, and fixing the reinforcement rope 5-6 on the two positioning columns 1-1.
The third step, during operation, the pressure interval of the constant pressure tank 4 is set, then the grouting pump 3 is started, the tugboat 1 is started to move forwards, meanwhile, the underwater topography recorded by the video receiver 8 through the underwater camera 7 is focused, the tugboat 1 moves forwards, the spiral plough piece 9-5 can drive the hollow pipe 9-4 to rotate continuously due to the friction effect of the spiral plough piece 9-5 and the bottom mud, the bottom mud is loosened once by the rotation of the spiral plough piece 9-5 under the action of the gravity of the spiral loosening and drug injection system 9, meanwhile, the bottom mud is separated from the water bottom by the side ploughshare plough pieces 9-6 arranged on the spiral plough piece 9-5, and the bottom mud slides down to the water bottom after moving upwards for a certain distance along with the rotation of the side ploughshare plough piece 9-6, so that the loosening and activation of the bottom mud are realized;
the method comprises the steps that when the bottom mud is loosened and activated, a grouting pump 3 injects a medicament solution prepared in a dispensing tank 2 into a constant pressure tank 4, the constant pressure tank 4 presses the medicament solution with constant pressure to a medicament main pipe 9-1 through medicament adding pipes 2-1 on the left side and the right side, and the medicament is sprayed into the loosened bottom mud at a certain pressure through a plurality of nozzles 9-1-2 of the medicament main pipe 9-1;
the continuous circulation is carried out, and the effects of loosening, activating and improving the bottom mud are achieved.
And fourthly, after the completion, closing the grouting pump 3, gradually slowing down the ship speed until the tugboat 1 stops, starting the winch 5, slowly pulling the spiral loose injection system 9 to one side of the stern until the node ring 5-5 is exposed out of the water surface, hooking the node ring 5-5 by using a steel wire rope hanging hook on the rotary hoisting frame 6, hanging the spiral loose injection system 9 out of the water surface, and after a plurality of water pressure balance holes 9-4-2 of the hollow pipe 9-4 are not drained outwards, hanging the spiral loose injection system 9 into a ship cabin to be collected. Simultaneously, the steel wire pull rope 5-3, the balance steel wire pull rope 5-4, the reinforcement rope 5-6 and the dosing tube 2-1 are synchronously collected.
In light of the foregoing description, aspects of the present invention can be implemented in connection with those skilled in the art.
Claims (4)
1. The in-situ loosening and repairing system for river and lake bottom mud comprises a tugboat (1), a dispensing tank (2), a grouting pump (3), a constant pressure tank (4), a winch (5), a fixed roller I (5-1), a fixed roller II (5-2), a rotary hoisting frame (6), an underwater camera (7) and a video receiver (8); the method is characterized in that: the device also comprises a spiral loose drug injection system (9);
the spiral loosening and medicine injection system (9) comprises an underwater bracket and a bottom mud loosening and turning device;
the underwater bracket consists of a medicament main pipe (9-1), a side wall (9-2) and an elastic rubber pad (9-3); the side wall (9-2) is a trapezoid wall, a shaft hole I (9-2-1) is formed in the wall surface of the wide end of the side wall (9-2), two symmetrical limit keys (9-2-1-1) are arranged on the inner face of the shaft hole I (9-2-1), a pipe joint (9-2-2) with one closed end is arranged at the upper end of the wall surface of the narrow end of the side wall (9-2), and internal threads are arranged in the pipe joint (9-2-2);
a hanging ring I (9-2-3) is arranged on the side wall of the upper end of the side wall (9-2);
two ends of a main pipe (9-1) of the medicament are respectively fixed with a side wall (9-2), namely, external threads I (9-1-1) at two ends of the main pipe (9-1) of the medicament are in threaded connection with internal threads of pipe joints (9-2-2) of the two side walls (9-2), an elastic rubber pad (9-3) is arranged between two ports of the main pipe (9-1) of the medicament and an inner sealing surface of the pipe joint (9-2-2), and a plurality of nozzles (9-1-2) are horizontally arranged on the main pipe (9-1) of the medicament at intervals;
the bottom mud loosening and turning device comprises a hollow pipe (9-4), a spiral plough piece (9-5), a side plough piece (9-6), a self-lubricating bearing (9-7), an end pipe (9-8) and a traction shaft (9-9); two ends of the hollow pipe (9-4) are respectively provided with a section of external thread II (9-4-1), a plurality of water pressure balance holes (9-4-2) and a hanging ring II (9-4-3) are horizontally arranged on the pipe wall of the hollow pipe (9-4) at intervals, and the water pressure balance holes (9-4-2) penetrate through the pipe wall of the hollow pipe (9-4);
two sets of spiral plough blades (9-5) are arranged on the hollow tube (9-4), the spiral directions of the two sets of spiral plough blades (9-5) are opposite, and a plurality of side plough blades (9-6) are arranged on one side surface of each set of spiral plough blades (9-5) at intervals;
the two self-lubricating bearings (9-7) are respectively embedded into a large-diameter shaft (9-9-1) of one traction shaft (9-9) in a tight fit manner, the two self-lubricating bearings (9-7) are respectively arranged in two ends of the hollow tube (9-4), the self-lubricating bearings (9-7) are in sliding fit with the inner wall of the hollow tube (9-4), two ends of the hollow tube (9-4) are respectively fixed with one end tube (9-8), and the small-diameter shafts (9-9-2) of the two traction shafts (9-9) respectively extend out of shaft holes II (9-8-1) of the two end tubes (9-8);
the traction shaft (9-9) is composed of a large-diameter shaft (9-9-1) and a small-diameter shaft (9-9-2) which are integrally formed, two key grooves (9-9-2-1) and a steel wire rope hole (9-9-2-2) are formed in the small-diameter shaft (9-9-2), and the two key grooves (9-9-2-1) are symmetrically arranged;
the bottom mud loosening and turning device is fixed on two side walls (9-2) of the underwater bracket, namely small diameter shafts (9-9-2) at two ends of the hollow pipe (9-4) respectively extend out of shaft holes I (9-2-1) of the two side walls (9-2),
the steel wire rope hole (9-9-2-2) of each small-diameter shaft (9-9-2) is respectively connected with one end of a balance steel wire stay rope (5-4);
the jet ports of a plurality of nozzles (9-1-2) on the medicine main pipe (9-1) point to the axle center of the hollow pipe (9-4);
the deck of the tugboat (1) is sequentially provided with a video receiver (8), a dispensing tank (2), a grouting pump (3), a constant pressure tank (4), a rotary hoisting frame (6), a winch (5), a fixed rolling shaft I (5-1) and two positioning columns (1-1), an underwater camera (7) is arranged at the bottom of the bow of the tugboat (1), a fixed rolling shaft II (5-2) is arranged at the tail end of the tugboat (1), and the fixed rolling shaft I (5-1) and the fixed rolling shaft II (5-2) are correspondingly arranged with the winch (5);
the winch (5) is provided with a steel wire stay rope (5-3), the steel wire stay rope (5-3) passes through a position between the fixed rolling shaft I (5-1) and the fixed rolling shaft II (5-2) to be fixed with the node ring (5-5), and the other ends of the two balanced steel wire stay ropes (5-4) are fixed with the node ring (5-5);
one end of each of the two reinforcement ropes (5-6) is respectively connected with a hanging ring I (9-2-3) at the upper end of the two side walls (9-2),
the other ends of the two reinforcement ropes (5-6) are respectively fixed on the two positioning columns (1-1);
the dispensing tank (2) is connected with a medicine inlet of the constant pressure tank (4) through the grouting pump (3), and a medicine outlet of the constant pressure tank (4) is respectively connected with two medicine pipe connectors (9-1-3) of the medicine main pipe (9-1) through the medicine adding pipe (2-1);
the underwater camera (7) is connected with the video receiver (8).
2. The in-situ loosening repair system for river and lake sediment according to claim 1, wherein: the two ends of the main medicament pipe (9-1) are respectively provided with a section of external thread I (9-1-1), a plurality of nozzles (9-1-2) are horizontally arranged outside one side of the main medicament pipe (9-1) at intervals, two ends of the main medicament pipe (9-1) are respectively provided with a medicament pipe interface (9-1-3), and the plurality of nozzles (9-1-2) and the two medicament pipe interfaces (9-1-3) are respectively communicated with the inner cavity of the main medicament pipe (9-1).
3. The in-situ loosening repair system for river and lake sediment according to claim 1, wherein: one end face of the end pipe (9-8) is provided with a shaft hole II (9-8-1), and the inner wall of the opening at the other end of the end pipe (9-8) is provided with a section of internal thread.
4. A method for using the in-situ loosening repair system for river and lake sediment, which is characterized by comprising the following steps:
firstly, preparing a repairing medicament in a dispensing tank (2) according to the calculated concentration of the medicament liquid, and connecting a steel wire pull rope (5-3) for dragging, a balance steel wire pull rope (5-4), a reinforcement rope (5-6) and a medicament adding pipe (2-1) with a spiral loosening medicament injection system (9) respectively;
the spiral loosening and drug injecting system (9) is slowly put into water by the cooperation of a steel wire rope and a hanging ring II (9-4-3) of the hollow pipe (9-4) through the rotary hoisting frame (6), after water is put in, water is poured in from a plurality of water pressure balance holes (9-4-2) of the hollow pipe (9-4) until a plurality of water pressure balance holes (9-4-2) of the hollow pipe (9-4) are not bubbled, so that the gravity of the spiral loosening and drug injecting system (9) under water is increased, and the contact stability of a spiral plough piece (9-5) and a river bottom is ensured;
secondly, the steel wire rope on the lifting ring II (9-4-3) is removed, then the tug (1) is slowly started, the steel wire pull rope (5-3) and the reinforcement rope (5-6) are lowered to a proper stress angle through the winch (5) while the tug (1) moves forwards, the tug (1) is stopped from moving and the winch (5) rotates, and the reinforcement rope (5-6) is fixed on the two positioning columns (1-1);
step three, when in work, firstly setting a pressure interval of the constant pressure tank (4), then starting the grouting pump (3), starting the tug boat (1) to move forwards, and simultaneously focusing on the underwater topography shot by the video receiver (8) through the underwater camera (7);
along with forward movement of the tugboat (1), due to friction effect of the spiral plough piece (9-5) and bottom mud, the spiral plough piece (9-5) can drive the hollow pipe (9-4) to continuously rotate, under the action of gravity of the spiral loosening drug injection system (9), the bottom mud can be loosened once by rotation of the spiral plough piece (9-5), meanwhile, the bottom mud can be carried away from the water bottom by a plurality of side plough pieces (9-6) arranged on the spiral plough piece (9-5), and the bottom mud can slide to the water bottom after moving upwards for a certain distance along with rotation of the side plough piece (9-6), so that loosening activation of the bottom mud is realized;
the method comprises the steps that when the bottom mud is loosened and activated, a grouting pump (3) injects a medicament solution prepared in a dispensing tank (2) into a constant pressure tank (4), the constant pressure tank (4) presses the medicament solution with constant pressure to a medicament main pipe (9-1) through medicament adding pipes (2-1) on the left side and the right side, and the medicament is sprayed into the loosened bottom mud through a plurality of nozzles (9-1-2) of the medicament main pipe (9-1) under certain pressure;
the continuous circulation is carried out, and the effects of loosening, activating and improving the bottom mud are achieved;
and fourthly, after finishing, closing the grouting pump (3), gradually slowing down the ship speed until the tugboat (1) stops, starting the winch (5), slowly pulling the spiral loose injection system (9) to one side of the stern until the node ring (5-5) is exposed out of the water surface, hooking the node ring (5-5) by using a steel wire rope hanging hook on the rotary hanging frame (6), hanging the spiral loose injection system (9) out of the water surface, and after a plurality of water pressure balance holes (9-4-2) of the hollow pipe (9-4) are not drained outwards, hanging the spiral loose injection system (9) into a ship cabin, and simultaneously, synchronously collecting the steel wire pull ropes (5-3), the balance steel wire pull ropes (5-4), the reinforcement ropes (5-6) and the medicine adding pipe (2-1).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110776225A (en) * | 2019-11-18 | 2020-02-11 | 深圳市承亿生物科技有限公司 | Method for in-situ degradation of river sediment by biological enzyme |
| CN113754214A (en) * | 2021-09-15 | 2021-12-07 | 中建三局第一建设工程有限责任公司 | Preparation method of bottom mud covering layer of black and odorous river channel and ecological restoration method of black and odorous river channel |
| CN115196849B (en) * | 2022-07-25 | 2023-05-05 | 生态环境部南京环境科学研究所 | Repairing device for repairing polluted river bed bottom mud |
| CN115677146A (en) * | 2022-09-22 | 2023-02-03 | 长江生态环保集团有限公司 | Injection type device and method for repairing and treating polluted bottom mud of rivers and lakes |
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