Remediation device for arsenic-contaminated soil

Abstract

The invention discloses a remediation device for arsenic-contaminated soil. According to the remediation device, tooth parts of semi-conical gears mesh with a first cone gear, a storage box is arranged at the upper end of the left side of a device body, the lower end of the first cone gear is fixedly connected to the upper end of a screw rod, the screw rod is connected to the upper end of the device body in a rotating mode through a bearing, the lower end of the screw rod I is connected to a sleeve in a threaded mode, the two sides of the sleeve are connected to guide grooves in a sliding mode, the guide grooves are fixedly connected to the side wall of the storage box, the lower end of the sleeve is fixedly connected to a compression roller, the bottom of the storage box communicates witha material guide pipe, the right side of a driving shaft is fixedly connected to a second cone gear, and the second cone gear meshes with a third cone gear. The remediation device has the advantagesthat the first cone gear is driven to rotate forward and reversely in a reciprocating mode through the toothed parts of the semi-conical gears so as to drive the screw rod to rotate forward and reversely, the screw rod drives the sleeve to move up and down in a reciprocating mode along the guide grooves under the action of threads so as to drive the compression roller to move up and down, the compression roller which moves up and down in a reciprocating mode drives a plug column to block the material guide pipe in a reciprocating mode so as to realize intermittent feeding, and meanwhile, the compression roller which moves up and down crushes soil blocks at the bottom of the storage box.

Description

technical field [0001] The invention relates to an environmental protection device, in particular to a repair device for arsenic-contaminated soil. Background technique [0002] Soil pollutants can be roughly divided into two categories: inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acids, alkalis, heavy metals, salts, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium and fluorine, etc. Organic pollutants mainly include organic pesticides, phenols, cyanides, petroleum, synthetic detergents, 3,4-benzopyrene, and harmful microorganisms brought by urban sewage, sludge, and manure. When there are too many harmful substances in the soil and exceed the self-purification ability of the soil, the composition, structure and function of the soil will change, the microbial activities will be inhibited, and the harmful substances or their decomposition products will gradually accumulate in the soil through ...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the existing arsenic-contaminated soil treatment is through manual treatment, the degree of mechanization is low, the soil crushing and the mixing of soil and fertilizer are not effective.

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