Patent RU-2291168-C1 (RU)
Title: Method of the rubber-containing wastes reprocessing and the installation for the method realization (versions)
Inventor: MATVEEV ALEKSEJ VIKTOROVICH
IPC: C08J11/20
Filed: 2005-05-19
Granted: 2007-01-10
Abstract: FIELD: rubber industry; methods and devices for reprocessing of the rubber-containing wastes or the mixtures of the rubber-containing and polymeric wastes. 
     SUBSTANCE: the invention is pertaining to the field of reprocessing of the rubber-containing wastes or the mixtures of the rubber-containing and polymeric wastes and may be used for utilization of the worn motor car tires with production of the solid carbon and other products, which can be used in the capacity of the hydrocarbon-containing raw for various productions. The method of reprocessing of the rubber-containing wastes or the mixtures of the rubber-containing and polymeric wastes includes the stage of their preliminary preparation, the stage of the thermal decomposition in the furnace with separation of the decomposition products into the vapor-gaseous mixture and the solid residue, the stage of extraction of the liquid phase from the vapor-gaseous mixture with formation of the hydrocarbon-containing gas and the stage of extraction the hydrocarbon-containing product from the solid residue. At that at the stage of the preliminary preparation the complete and-or ground wastes are blasted by the hydrocarbon-containing gas with the subsequent impregnation with the hydrocarbon solvent with the boiling point of not exceeding 220°C. The stage of the thermal decomposition in the furnace is conducted in the medium of the hydrocarbon-containing gas heated up to 400-500°C. Extraction of the liquid phase from the vapor-gaseous mixture is conducted in three steps with separation of the heavy hydrocarbon fraction, the average hydrocarbon fraction and recirculation of its part to the stage of the preliminary preparation of the wastes for utilization as the hydrocarbon solvent, and the light hydrocarbon fraction. The solid residue before the stage of extraction of the carbon-containing product is subjected to the air blasting and cooling. The hydrocarbon-containing gas formed after separation of the liquid phase from the vapor-gaseous mixture is fed back into the process. The invention describes two versions of the installations with usage of the furnaces for the thermal decomposition of the wastes of the tunnel type and the rotor-sector type. The invention allows gaining the reliable and pollution-free processing technique for the continuous reprocessing of the rubber-containing wastes or the mixtures of the rubber-containing and polymeric wastes, to reduce power input of the process of the rubber-containing wastes reprocessing with production of the carbon-containing and hydrocarbon-containing products. 
     EFFECT: the invention represents the reliable and pollution-free processing technique for the continuous reprocessing of the rubber-containing wastes or the mixtures of the rubber-containing and polymeric wastes, with reduction of the power input at the reprocessing of the rubber-containing wastes with production of the carbon-containing and hydrocarbon-containing products. 
     12 cl, 3 dwg, 5 ex