The invention discloses an energy-saving in-situ
thermal desorption treatment device and an energy-saving in-situ
thermal desorption treatment method for greasy dirty contaminated soil. The energy-saving in-situ
thermal desorption treatment device comprises a heating
assembly, an extraction
assembly, a
smoke emission
assembly, an
inert gas blowing-in assembly, a monitoring assembly and a contaminated gas treatment assembly; the heating assembly comprises heating pipes; the heating pipes are arranged in the greasy dirty contaminated soil; the extraction assembly comprises extraction tubes; theextraction tubes are arranged in the greasy dirty contaminated soil; the
flue gas emission assembly comprises
smoke return pipes; the
smoke return pipes communicate with the heating pipes; the monitoring assembly is arranged in the greasy dirty contaminated soil; and the contaminated gas treatment assembly communicates with the extraction assembly. The energy-saving in-situ thermal
desorption treatment method comprises the steps that a greasy dirty contaminated soil
hillock is established in a different place on the spot; in the process of establishing the greasy dirty contaminated soil
hillock, the energy-saving in-situ thermal
desorption treatment device for the greasy dirty contaminated soil disclosed by the invention is arranged; a
thermal insulation layer and a sealing layer are sequentially arranged outside the established
hillock; and the hillock is heated, and volatile components of greasy
dirt in the soil after being heated enter the contaminated gas treatment assembly via theextraction assembly, so that greasy
dirt recovery is achieved.