The invention relates to a roller-type reverse
thermal desorption system for soil polluted by organic matters. The roller-type reverse
thermal desorption system comprises a soil feeding
system, wherein the soil feeding system and a heat
source system are connected with a reverse
thermal desorption system; the reverse thermal
desorption system is connected with a dust removing system, a cooling system and an
active carbon adsorption system in turn; and control ends of the soil feeding system, the heat
source system, the reverse thermal
desorption system, the dust removing system, the cooling system and the
active carbon adsorption system are connected with a
control system. In the roller-type reverse thermal
desorption system, hot air is fed into a reverse thermal desorption roller by an
ignition system, and polluted soil is fed into the reverse thermal desorption roller by a soil transferring device, wherein the hot air contacts the soil reversely, so that organic pollutants contained in the soil are heated and volatilized; the purified soil is used as backfill soil; and the volatilized
tail gas is dedusted by a
cyclone dust extractor and an adsorption dust extractor after passing through an induced draft fan, and the dedusted volatilized
tail gas is absorbed by a
honeycomb-shaped
active carbon tower after passing through an atomization
cooling tower and a dial plate cooling device, and finally is discharged by a
tail gas exhaust device on the basis of meeting the
national standard. Materials can be fed into the roller-type reverse thermal desorption system continuously and can be heated directly; and the hot air and the polluted soil are fully mixed, and the roller-type reverse thermal desorption system has high thermal desorption efficiency.