Biological dredging platform and method

Abstract

The invention relates to a biological dredging platform which comprises a ship body, a positioning pile, a driving cabin and a dredging device. The positioning pile comprises a front pile and a rear pile which are controlled by a corresponding electric winch and a steel rope to lift. The ship body is provided with a moveable trolley which drives the rear pile to move step by step. The dredging device is hinged on the front side of the ship body. A mud outlet of the dredging device is connected with a mud pump through a pipeline. The dredging device is controlled by the electric winch IV and the steel rope IV to lift. The platform further comprises side arms on both sides of the ship body. One end of the steel rope V is fixedly arranged on the dredging device while the other end of the steel rope V is connected with the electric winch V through a crown block on the side arm. The electric winch V and the steel rope V control the dredging device to swing. The biological dredging method provided by the invention mainly comprises the steps of: positioning; fan-shaped dredging operation; moving step by step; positioning; and fan-shaped dredging operation in a circulating manner. According to the invention, the dredging platform moves step by step, is precisely positioned and dredges continuously in a fan shape. The dredging process is environment-friendly and the dredging efficiency is high.

Description

technical field [0001] The invention relates to the technical field of water conservancy dredging. It specifically relates to the technical field of ecological dredging, and in particular relates to an ecological dredging platform and a method for positioning and stepping through the dredging platform and realizing dredging. Background technique [0002] Dredging is a sediment treatment measure that cuts, collects, extracts, and transports silt from rivers, lakes, ponds and other water environments from the bottom of the water to a specific location for centralized treatment. For the dredging of the water environment, a dredging ship is usually used. When the dredging ship is working, since the working width of the dredging and sand suction is much larger than the width of the ship, a positioning mechanism is generally required to make the hull move back and forth in a fan-shaped manner for clearing. For silting operations, at present, anchoring on both sides is often used ...

AI Technical Summary

Problems solved by technology

For the dredging of the water environment, a dredging ship is usually used. When the dredging ship is working, since the working width of the dredging and sand suction is much larger than the width of the ship, a positioning mechanism is generally required to make the hull move back and forth in a fan-shaped manner for clearing. For silting operations, at present, anchoring on both sides is often used to position the hull or use hydraulic winch pull ropes to position the hull. This positioning method has the following disadvantages: first, the whole ship towing operation is cumbersome and labor-intensive, and second, it is less practical, especially in When the dredging water surface is large, it is inconvenient or impossible to use the hydraulic winch pull rope to position the hull

In addition, the existing dredging ships are also limited by the operating point and working surface, which affects the efficiency of dredging

[0003] From the perspective of ecological dredging, although traditional dredging and dredging equipment can remove silt from rivers and lakes, in traditional dredging methods such as excavation and suction, due to the existence of rotating parts, the dredging operation is difficult. The process will inevitably lead to the diffusion of silt in the water body, especially the adhesive layer containing a large amount of nutrient-rich substances on the surface of the silt will be dispersed, so that the part of the nutrient-rich substances that diffuse is difficult to be dug out with the silt, thus causing the desilting process. The secondary pollution in the soil makes the dredging process incomplete, and the purpose of ecological dredging cannot be achieved, that is, while removing sediment pollutants to the greatest extent, it can also remove nutrient-rich substances deposited at the bottom of rivers and lakes. The intervention of technology creates the conditions

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