Heavy metal contaminated soil remediation device

Abstract

The invention discloses a heavy metal contaminated soil restoration device, which belongs to the technical field of soil restoration and includes a soil filtering mechanism, a screw feeder, a restoration box, a soil air-drying mechanism, a crushing mechanism, and a soil-turning and washing mechanism. There is a filter plate installed horizontally inside, and there are screening holes on the filter plate. The soil turning and washing mechanism includes a driving motor, a soil turning component, a reciprocating vibration component, a rotating shaft and two spray pipes. Atomizing nozzles are provided at the liquid outlets, a guide slideway is provided at the bottom of the repair box, and a closing plate is provided on the right side of the guide slideway. The invention can realize the washing operation of the soil through the soil turning and washing mechanism, and the soil can be turned over so that the soil can be evenly washed, and the crushing operation of the soil can be realized under the action of the crushing mechanism, so that the soil can be crushed Broken into smaller particles, so that the soil and reactants fully react.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a heavy metal contaminated soil remediation device. Background technique [0002] With the rapid development of my country's economy and the acceleration of urbanization and industrialization, the problem of soil and groundwater pollution in my country has become increasingly prominent. The activity of heavy metals in the soil is quite high. If the external environment changes slightly, it will dissolve into the soil solution, or enter Runoff pollutes groundwater and surface water, or is absorbed by plants and enters the plant chain to endanger humans and animals. Taking cadmium as an example, the background value in polluted areas is generally high. In some polluted areas, the cadmium content of rice is more than ten times the average value of clear irrigation areas, and vegetables are even as high as dozens of times. Obviously, agricultural land polluted by heavy metal...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a heavy metal contaminated soil remediation device to solve the technical problems in the prior art that it is difficult to spray the reverse side of the soil and the response is insufficient due to the large particles of the soil

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