In-situ solidification and stabilization treatment system for polluted soil

Abstract

Disclosed is a contaminated-soil in-situ solidification stabilizing treatment system. The contaminated-soil in-situ solidification stabilizing treatment system comprises a connecting base plate module used for being connected with a hydraulic excavator. The connecting base plate module is arranged at the upper end of an arm structural frame of an even-mixing arm. Two fixed cylinder bodies which are arranged in a tilting-down mode are symmetrically arranged at the lower end of the arm structural frame. Hydraulic motors are fixedly arranged inside the fixed cylinder bodies. The hydraulic motors are connected with rotating cylinder bodies through transmission devices. A plurality of stirring cutter boards which are arranged in a spiral-line mode are arranged on the outer walls of the rotating cylinder bodies. Due to the fact that the specially-made even-mixing arm is adopted, the efficient cutting capacity, the turning and plowing capacity and the even-mixing capacity on soil are achieved, the three-dimensional and multi-directional depth stirring is achieved, the stirring cutter boards arranged in the spiral-line mode are matched with the arranged rotating cylinder bodies (106), and the contaminated-soil in-situ solidification stabilizing treatment system has the advantages of being good in mixing and stirring effects, strong in crushing capacity, large in torque, small in motion resistance and not prone to damage. In the process of high-speed rotation, the contaminated-soil in-situ solidification stabilizing treatment system plays good stirring and plowing roles in plastic-flow-state materials, the viscous resistance of the soil is overcome, and the soil homogenization is achieved at the same time.

Description

technical field [0001] The invention relates to the technical fields of contaminated soil remediation, dredging of rivers and lakes, and safe disposal of sludge in sewage treatment plants, and safe disposal of sludge pits in landfills and soft foundations for in-situ solidification and stabilization. In particular, it is an in-situ solidification and stabilization treatment system for contaminated soil. Background technique [0002] The ecological safety treatment and disposal of sludge sludge is a major environmental problem that needs to be solved urgently in our country. Some sludge in my country is landfilled in landfills, but due to the relatively high water content of sludge (about 80%), the sludge is stored after being piled up. The water is strong, the permeability coefficient is small, the shear strength is low, the internal friction angle is close to zero, and it has strong rheology, which makes the landfill work surface easy to form swamps, resulting in the inabili...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an in-situ solidification and stabilization treatment system for contaminated soil, which can solve the key technical problems in the prior art such as insufficient solidification mixing depth, poor mixing uniformity, low efficiency, non-quantitative medicament and high cost. , can realize three-dimensional multi-directional deep mixing, flexible and convenient operation, quickly and efficiently realize the full mixing of sludge and chemicals, so that sludge and chemicals can be quickly dehydrated and wrapped

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