Multistage system for solid waste burning and vitrification

Details Multistage system for solid waste burning and vitrification Multistage system for solid waste burning and vitrification

1994-09-30

1995-12-26

Gromada, Denise L.

Furnaces

Process

Incinerating refuse

110229, 110211, 110235, F23G 512

Patent

active

054777909

ABSTRACT:
An improved method is provided, using existing technology, for treating and disposing of both classified and unclassified waste materials, in a multistage process having a plurality of integrated and interconnected primary and secondary combustion and exhaust systems and having a selective range of pressures and temperatures and fuel/oxygen ratios in each of the systems. The primary or first stage combustion system treats generally classified, predominantly organic waste material that is amenable to a low temperature degradation which produces flammable exhaust materials that are then used to fuel an operably connected high temperature torch which is integral to the secondary or second stage, high temperature combustion system. The high temperature system treats generally unclassified waste material, which may contain both organic and inorganic waste in random ratios. The high temperature flame from the torch is used to vitrify the unburned solids which remain, using added vitreous material whenever necessary and discharging the molten, vitrified waste into suitable containers for disposition, whenever appropriate. The exhaust gases from the high temperature stage are handled by conventional means. The multistage process may be operated either in batch or continuous mode.

REFERENCES:
patent: 3917239 (1975-11-01), Rhinehart
patent: 4179263 (1979-12-01), Jung et al.
patent: 5213051 (1993-05-01), Kaneko

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