In-situ solidification and stabilization treatment system and method for polluted soil

Abstract

A system and method for in-situ solidification and stabilization of polluted soil. The main engine of the hydraulic excavator and the supporting main engine and the main engine of the hydraulic excavator in the data monitoring system are connected to the homogenizing arm through the connection board module, and two symmetrically arranged at the lower end of the homogenizing arm. The fixed cylinder is inclined downward, and the hydraulic motor is fixed in the fixed cylinder, and the hydraulic motor is connected with the rotating cylinder through the transmission device. The outer wall of the rotating cylinder is provided with a plurality of stirring blades arranged in a spiral line; the composite gas The control material feeder is connected to the medicine feeding device of the homogenizing arm through the medicine feeding pipeline and the data cable, and through the multiphase flow conversion device and the medicine delivery system. Compared with the prior art, the present invention has the following beneficial effects: the whole set of technological process is simple and reliable, the system equipment structure is safe and reliable, the uniform mixing transmission efficiency is high, the torque is large, the uniform mixing efficiency is high, quantitative, and the cost is saved. Depth adjustable to improve working range. high degree of automation.

Description

technical field [0001] The invention relates to the technical field of remediation of contaminated soil, safe disposal of river and lake dredging sludge and sewage treatment plant sludge, in-situ solidification, stabilization and safe disposal of sludge pits in landfills and soft foundations. In particular, an in-situ solidification and stabilization treatment system for polluted soil. Background technique [0002] The ecological safety treatment and disposal of sludge and sludge is a major environmental problem that needs to be solved urgently in my country. Some domestic sludge is buried in landfills. Strong water, low permeability coefficient, low shear strength, internal friction angle close to zero, and strong rheology, which makes the landfill work surface easy to form swamps, which makes the landfill work surface unable to be compacted, which seriously affects the landfill. The normal operation of the field and the surrounding ecological environment. [0003] The slud...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a system and method for in-situ solidification and stabilization of contaminated soil, which can solve the problems of insufficient solidification and stirring depth, poor stirring uniformity, low efficiency, non-quantitative medicament and high cost in the prior art. Key technical problems, 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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