Planting and throwing device for remediation of heavy metal contaminated soil

Abstract

The invention discloses a planting and spreading device for repairing heavy metal polluted soil, which comprises a housing, a partition, a dispersing disc, a U-shaped stirring frame, a rotating column, a rotating disc, a frame, a base and a spreading wheel, and the ring-shaped dripping pipe is fixedly connected. There are connecting pipes arranged in a cross, so the neutralizer is dripped more evenly, the soil U-shaped stirring frame and the dispersion plate are used for stirring, and the U-shaped stirring frame can also scrape off the soil adhered to the inner wall of the shell, and the dispersion plate The lower baffle allows the soil to flow from bottom to top, which further improves the mixing reaction efficiency of the soil and the neutralizer. Since the soil falls layer by layer, when the soil falls on the casting wheel, the soil has already passed through many layers. In the circle formed by the rotation of the shell, the outer throwing wheel throws a large amount of soil while the inner throwing wheel throws a small amount of soil, and finally the circle formed by the shell rotation corresponds to the amount of soil on the ground. The thickness of the soil spread within the circle is uniform.

Description

technical field [0001] The invention relates to the technical field of planting, in particular to a planting and spreading device for repairing heavy metal polluted soil. Background technique [0002] Soil heavy metal pollution refers to human activities, the content of trace metal elements in the soil exceeds the background value, and the excessive content caused by excessive deposition is collectively referred to as soil heavy metal pollution. Heavy metals refer to metals with a specific gravity equal to or greater than 5.0, such as Fe, Mn, Zn, Cd, Hg, Ni, Co, etc.; As is a metalloid, but due to its chemical properties and environmental behavior are similar to heavy metals, Therefore, when discussing heavy metals, arsenic is often included, and some directly include it in the scope of heavy metals. Due to the high content of iron and manganese in soil, it is generally considered that they are not soil pollution elements, but under strong reducing conditions, the toxicity ...

AI Technical Summary

Problems solved by technology

[0003] In the process of planting crops, sometimes it is necessary to carry out soil feeding operation at the planting site, so that the planting site has a thicker soil environment, but the traditional soil feeding operation is manual operation, it is difficult to grasp the soil volume, which increases the physical exertion and at the same time, the soil volume Not uniform, and crops grown on heavy metal-contaminated soils are greatly affected

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