Environment-friendly dredging device

Abstract

The invention relates to an environment-friendly dredging device. A dredging unit comprises a silt loosening mechanism and a silt pump; a sludge separation unit comprises an outer box body, a first inner box body and a second inner box body which are arranged on a ship body; the sludge separation unit further comprises a dewatering box, and spiral blades are arranged in the dewatering box; the ship body is also provided with a water pump and a chemical tank, and a water inlet of the water pump extends into the bottom of the outer box body through a water pipe; deodorizing liquid is contained in the chemical tank, and a liquid outlet of the chemical tank extends into the bottom of the outer box body through a liquid outlet pipe; and the first inner box body, the second inner box body, a stirring paddle and the spiral blades are all driven to rotate through a transmission mechanism. The environment-friendly dredging device is capable of automatically removing silt at the river bottom orthe lake bottom, is also capable of filtering and dewatering the silt, and has the technical effects of simple operation, high working efficiency, energy conservation and environmental friendliness.

Description

technical field [0001] The invention relates to the field of dredging, in particular to an environmental protection dredging device. Background technique [0002] There are many rivers and lakes in my country, and the problem of sediment deposition is very serious. The sediment deposition leads to the elevation of the riverbed, which not only affects flood control and threatens the safety of people's lives and property, but also makes it difficult to perform functions such as drainage, irrigation, water supply, and navigation. It seriously restricts the comprehensive utilization of water resources and aggravates the deterioration of the water environment. Therefore, it is necessary to dredging the drainage regularly to ensure the smooth flow of the river. [0003] The invention patent with the patent number of 201811268780.2 discloses a river dredging device for water conservancy projects. The device extracts the silt from the bottom of the water and sends it into a classific...

AI Technical Summary

Problems solved by technology

This device has the following defects: (1) the filtering efficiency of the screen is limited. If the filtering effect of the screen is to be guaranteed, the amount of sludge transported by the lifting device needs to be limited, thereby restricting the dredging efficiency; To a certain extent, it can accelerate the separation of impurities and silt, but the water content of silt is increased after washing the silt with water, which not only wastes water resources, but also increases the burden of subsequent transportation of silt; (3) the whole device provides walking power through the walking device , due to the complex working environment at the bottom, there may be undulating terrain, which will not bring certain resistance to the advancement of the device, resulting in the inability of the cleaning device to effectively sweep the silt into the lifting device, reducing the efficiency of dredging; (4) If the amount of impurities in the sludge is too large, it will block the screen and cause the dredging process to fail to proceed smoothly.

In order to ensure the effectiveness of the dredging work, it is necessary to transport the device from the bottom of the river to the ground and remove the impurities, and then put the device back to the bottom of the river. This process reduces the efficiency of dredging and increases the number of staff workload

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