Pesticide-contaminated soil thermal desorption device

Abstract

The invention relates to the technical fied of soil treatment and discloses a pesticide-contaminated soil thermal desorption device. The pesticide-contaminated soil thermal desorption device comprises a rack and a case arranged on the rack, wherein a heating chamber is formed in the case, a combustion chamber is formed at the bottom of the case, an upper feeding barrel and a lower feeding barrel, which are distributed horizontally, are arranged in the case, a feed hopper is arranged at the top part of the case, the lower end of the feed hopper is communicated with the left end of the upper feeding barrel by a feeding channel, the right end of the upper feeding barrel is communicated with the right end of the lower feeding barrel by a connecting channel, a discharge channel is formed at the left end of the lower feeding barrel, an upper rotating shaft is arranged in the upper feeding barrel, an upper spiral band is arranged on the upper rotating shaft, a lower rotating shaft is arranged in the lower feeding barrel, a lower spiral band is arranged on the lower rotating shaft, the end parts of the upper rotating shaft and the lower rotating shaft are connected by a synchronous belt, a motor is arranged at the top part of the rack and used for driving the upper rotating shaft to rotate, and the rotating directions of the upper spiral band and the lower spiral band are opposite. The pesticide-contaminated soil thermal desorption device has the beneficial effects of being capable of crushing, stirring and heating soil to greatly eliminate pesticide residues in the soil and having high soil remediation efficiency.

Description

technical field [0001] The invention relates to the technical field of soil remediation treatment, in particular to a soil pesticide thermal desorption device. Background technique [0002] A large amount of soil in my country has been polluted by organic pollutants such as benzene, toluene, xylene, ethylbenzene and TPH. As the public gradually understands the environmental and health hazards of organic pollutants, there is an urgent need for economical and effective methods to deal with these toxic substances. . The main remediation technologies for soil contaminated by organic pollutants include biological remediation, chemical remediation, physical remediation, etc. In comparison, physical remediation or chemical remediation has wider applicability, especially for high-concentration, multi-component organic pollution contaminated sites . Some orchards and gardens are often sprayed with pesticides and insecticides, and the residual pesticides and insecticides will enter t...

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Problems solved by technology

[0004] In order to overcome the poor desorption effect of the soil thermal desorption equipment in the prior art, the present invention provides a soil pesticide thermal

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