River and lake sediment in-situ loosening remediation system and using method thereof

Abstract

The invention relates to a use method of a river and lake sediment in-situ loosening remediation system. The method comprises the following steps: filling a dispensing tank with a remediation agent, and separately connecting a steel wire pull rope for dragging, a balancing steel wire pull rope, a reinforcing rope and a dosing pipe with a spiral loosening medicine injection system; slowly putting the spiral loosening medicine injection system into water; setting a pressure interval of a constant-pressure tank, then starting a grouting pump, starting a tugboat to allow the tugboat to move forwards, and paying attention to underwater topography photographed by a video receiver through an underwater camera; along with the movement of the tugboat, allowing a hollow pipe to continuously rotate under the driving of a spiral plough blade so as to loosen the bottom mud once, taking bottom mud away from a water bottom in virtue of a plurality of side furrow plough blades on the spiral plough blade, and allowing the bottom mud to slide to the water bottom again, thereby realizing loosening and activation of the bottom mud; while the bottom mud is loosened and activated, allowing an agent solution in a dispensing tank to sequentially pass through the constant-pressure tank, the dosing pipe and a plurality of nozzles of an agent header pipe under the action of a grouting pump so as to spraythe agent into the loosened bottom mud; and repeating above cycles so as to achieve the effects of loosening, activating and improving the bottom mud.

Description

technical field [0001] The invention relates to the field of river and lake bottom mud restoration equipment, in particular to an in-situ loosening and repairing system for river and lake bottom mud and a method for using the same, which are used for in-situ loosening, activation and improvement of river and lake bottom mud. Background technique [0002] Animal and plant residues, organic matter and nutrient salts accumulated in the water body for many years lead to anaerobic black and odorous sediments, and these pollutants are continuously released into the water body, resulting in black and odorous rivers, cyanobacteria blooms, odor volatilization, and ecological imbalance. exist. In the past few years, large-scale dredging and dredging of sediment was generally adopted. Practice has proved that because this method destroys the survival and habitat environment of beneficial bacteria, microorganisms and benthic animals in the river, it seriously affects the balance of the ...

AI Technical Summary

Problems solved by technology

[0006] 1) One spray gun has only one nozzle, the number of nozzles is limited, the coverage of one operation is small, and the operators are prone to fatigue, which is not good in terms of efficiency or uniformity of spraying

[0007] 2) Because conventional pneumatic pumps often have common problems such as air flow pulsation and oil in the air, there is a certain degree of instability and pollution, and the amount of sprayed medicine is not easy to measure.

[0008] 3) The spray gun does not go deep into the bottom mud, there is still a thick water layer between the spray gun and the bottom mud, and there is no visual equipment, the mixing effect of the agent and the bottom mud cannot be verified, and a large amount of agents are wasted

[0009] 4) There is no device for loosening the sediment, and the sediment cannot be effectively loosened and activated, which is not conducive to the release of organic pollutants and nutrient salts

[0011] 1) When encountering larger stones or hard objects, the rake teeth cannot pass over them. When hooking these larger stones or hard objects, it will be difficult to drag or even the rake teeth will be damaged or fall off

[0012] 2) When encountering uneven terrain, the rake tines are easy to overturn, causing the overall system to fail to work normally, stop and use, or even unusable

[0013] 3) The impact and disturbance of the rake teeth on the sediment are limited, and the sediment cannot be fully loosened and activated

[0015] 1) Artificially throwing tablets or balls, the uniformity of the throwing stage is difficult to control

[0016] 2) During the process of tablets or balls falling to the bottom mud, due to the turbulence of the water body, the operator cannot control their underwater trajectories

[0017] 3) Due to the buoyancy of water, tablets or balls will slowly fall into the water until they are above the surface of the bottom mud, and cannot reach a certain depth. Therefore, this kind of treatment is more inclined to control the drop point of tablets or balls Surface sediment pollution within a certain range has little effect on deeper sediment pollution

[0018] 5. According to the relevant literature at the present stage, there are still some sediment injection devices with patented technology, such as simple devices used in the laboratory stage to study and control chemicals; if the pesticide application measures at fixed points are used, they cannot be moved at any time , can only do full-coverage spraying of sediment along the river, which does not meet the actual needs of long-line, large-area, low-cost, and high-efficiency treatment of black and odorous water bodies in rivers and lakes, and the residual auxiliary spraying materials in the later period will affect the river course. Sediment forms secondary pollution

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