Polluted soil treatment device

Abstract

The invention provides a polluted soil treatment device. The device comprises a feeding hopper, a first conveying belt, a crushing device, an iron removal device and a second conveying belt, wherein avibrating screen is installed in the feeding hopper; the feeding end of the first conveying belt is connected with the material discharging port of the feeding hopper; the feeding port at the top ofthe side face of a box body is connected with the material discharging end of the first conveying belt, a material discharging port is formed in the bottom of the box body, a plurality of rotating shafts are installed inside the box body from top to bottom, and the rotating shafts are correspondingly driven by a plurality of first motors installed on the side face of the box body; the iron removal device comprises an adsorption device and a collection box, the adsorption device is arranged above the first conveying belt, and comprises a roller and an annular rotating crawler, a magnet is fixed on the local surface of the rotating crawler, moreover, a scraping plate is arranged at one end of the bottom of the adsorption device, a gap is reserved between the scraping plate and the rotatingcrawler belt, the top of a sliding groove is located right under the gap, and the bottom of the sliding groove is connected with the collecting box; and the feeding end of the second conveying belt isconnected with the material discharging port of the crushing device, and a stirrer is arranged at the material discharging end. According to the device, efficient soil remediation treatment is realized.

Description

technical field [0001] The invention relates to the field of soil remediation, in particular to a contaminated soil treatment device. Background technique [0002] With the acceleration of industrialization, a large number of pollutants are accumulated in soil media through various sources. Especially in the adjustment of urban industrial structure and changes in spatial layout, a large number of industrial sites have been changed for development and utilization, resulting in serious industrial site pollution problems. [0003] Soil remediation refers to the use of physical, chemical and biological methods to transfer, absorb, degrade and transform pollutants in the soil, reducing its concentration to an acceptable level, or converting toxic and harmful pollutants into harmless substances. The soil in southern my country (such as the Yangtze River Delta region) has the characteristics of high viscosity and high moisture content, and it is easy to bond into large pieces. The...

AI Technical Summary

Problems solved by technology

The soil in southern my country (such as the Yangtze River Delta region) has the characteristics of high viscosity and high moisture content, and it is easy to bond into large pieces. The common difficulties encountered in soil restoration operations are that the soil is difficult to break, and the high viscosity soil is easy to paste On the equipment, the material in and out is not smooth, which leads to the inability of the chemical and the soil to fully contact and react after dosing

[0004] At present, when soil remediation projects are implemented in China, the construction of soil remediation projects is mainly based on "earth method" operations such as excavators, mixing buckets, turning machines, etc., which cannot effectively deal with such problems and work efficiency is low

[0005] At the same time, when excavating the soil for repair, there are often some iron wires in the soil. If they are not removed in time, on the one hand, it will affect the repair of the soil, and on the other hand, it is easy to cause damage to the machine.

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