a thermal reactor for the continuous thermolytic recycling of granules of scrap tires , vulcanization residues and waste plastics , and of similar products features a feed portion , a central heating - zone portion and a discharge portion arranged vertically one below the other . an extraction pipe is located centrally in the central heating - zone portion of the thermal reactor , the lateral surface of the extraction pipe featuring numerous holes and / or slits for withdrawal of the vaporized short - chain hydrocarbon compounds being formed , and the extraction pipe having conical bells pushed onto it one above the other . a device withdraws the vaporized hydrocarbon compounds from the extraction pipe . radially arranged heating plates are provided on the lateral surface of the reactor in its central heating - zone portion , the heating plates being arranged at the heating levels , which lie one above the other , such that the plates are mutually offset .