FIELD: reclamation of wastes.
SUBSTANCE: proposed method includes heating of wastes in incinerator without admitting of atmospheric air followed by removal of products from incinerator. For heating the wastes, use is made of carbon dioxide at temperature of about 2300°C obtained during thermal decomposition of calcite at temperature of about 1000°C and additionally heated to temperature of 2300°C by products of combustion of hydrogen in oxygen; carbon dioxide is fed via pipes made from strong heat-resistant metal and mounted in near-bottom part of incinerator. Products of combustion of hydrogen in oxygen flow around these tubes in which carbon dioxide flows. Carbon dioxide is introduced into wastes heated to 2000°C through injectors mounted in near-bottom portion of incinerator by repeated portions for obtaining stoichiometric mixture with carbon contained in wastes for conducting the reducing reaction of carbon dioxide by carbon to carbon monoxide which is mixed beyond incinerator space with water steam at temperature not below 500°C at ratio of 60.78 mass-% of carbon monoxide to 39.13 mass-% of water steam for forming conditions for chemical interaction of mixture thus obtained with calcium oxide which is used as raw material for producing calcium oxide and carbon dioxide; solid and liquid products of reworking of wastes are discharged from incinerator in form of molten iron, slag and sludge.
EFFECT: complete reclamation of wastes without emissions of toxic agents into atmosphere.
5 cl, 1 dwg
