Environmental protection dredging stockyard sediment original position rapid dehydration system

Abstract

The invention relates to an environmental protection dredging stockyard sediment original position rapid dehydration system, which comprises an input unit, a grating unit, a positive pressure pumping filtration draining unit, an overflow slurry deposition unit, a residual water purification unit and residual water purification unit and residual water discharge unit, and these units are connected in order; the bottom plane of the positive pressure pumping filtration draining unit has a trapezoid design, and the bottom of the positive pressure pumping filtration draining unit is distributed with a drainpipe, and the drainpipe is connected with water chutes at double sides by a vacuum water pump, and the residual pumping filtration water is connected with the water chute and enters into the residual water purification unit. The system combines with the real case of the dredging engineering and anhydration technology of home and abroad dredging stockyard sediment, and integrates the sediment dehydration, anhydration, silt grading, residual water treatment and a series of functions into one body, and has the characteristics of large treatment scale, small environmental pollution, short construction period, high economic benefit, etc., thereby effectively solving the dilemmas in the traditional dredging stockyard.

Description

technical field [0001] The invention belongs to the field of river and lake dredging engineering, and relates to a drying treatment technology for dredged bottom sludge, in particular to an in-situ rapid dehydration system for environment-friendly dredged bottom sludge. Background technique [0002] At present, lakes requiring environmental protection dredging are often located in key areas of the city, and there is less and less land around the lakes that can be used for dredging projects, resulting in difficulties in land acquisition for polluted sediment dumps after dredging, which greatly increases the cost of lake water environment treatment. Almost all environmental protection dredging projects in urban water bodies are troubled and restricted by storage yard problems to varying degrees. How to get out of the predicament caused by traditional dredging storage yards, how to reduce the land occupation of storage yards and shorten the drying of dredged sediment through tec...

AI Technical Summary

Problems solved by technology

At present, external admixture method is usually used for dehydration and reinforcement of sediment in foreign countries, represented by lightweight soil, which has the advantages of low density and high strength, but its engineering cost is high, the construction period is long, and it is easily affected by weather conditions. When the external admixture is used, it is easy to segregate during the stirring process, and the bonding force with the cement paste interface is poor

Images