Ectopic remediation device for high-temperature gas heating remediation of soil

Abstract

The invention discloses an ectopic remediation device for high-temperature gas heating remediation of soil, the ectopic remediation device comprises a box body, a feeding nozzle arranged at the upperend of the box body and a discharging nozzle arranged at the lower end of the box body, wherein a heat insulation plate arranged along the horizontal direction is arranged in the box body, the heat insulation plate divides the box body into a heating cavity arranged at the upper half part and a cooling cavity arranged at the lower half part, an air duct arranged along the horizontal direction is embedded in the heat insulation plate, and one end of the air duct penetrates through the inner wall of the box body and is provided with an air compressor. According to the invention, a pressurized gas is shunted through a vortex tube, so that high-temperature remediation and cooling of the soil are simultaneously completed in one device, and the flow is simplified; an impeller is driven to rotateby airflow, a rotating shaft drives auger blades to rotate, and the auger blades push the soil to form a continuous thermal desorption process, so that only the soil needs to be continuously added, no additional driving force needs to be provided, energy is saved, and efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to an ex-situ remediation device for remediating soil by heating with high-temperature gas. Background technique [0002] Thermal desorption technology is a technology that desorbs volatile substances from non-volatile substances by direct or indirect heating. It is one of the effective technologies for remediating polluted soil; unlike incineration, thermal desorption technology does not make organic pollutants Instead, the organic pollution components in the soil are heated to volatilize through direct or indirect heating, so that the organic pollution components are separated from the soil, and the purpose of remediating the soil is achieved; [0003] The existing thermal desorption equipment is huge and costly. After heating the soil, it needs to cool down the soil. After the cooling is completed, it is necessary to spray microbial liquid to repair the thermally desorbe...

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Problems solved by technology

[0003] The existing thermal desorption equipment is huge and costly. After heating the soil, it needs to cool down the soil. After the cooling is completed, it is necessary to spray microbial liquid to repair the thermally desorbed soil. The overall area of ​​the equipment and the energy consumption are relatively large.

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