Patent ID: 7665407

Claim:
A cyclonic plasma pyrolysis/vitrification system pyrolyzing and vitrifying waste materials into exhaust gas and slag using a plasma torch, the system comprising: a main reactor having a waste inlet supplying waste materials, an exhaust gas outlet for discharging exhaust gas, and a slag outlet for discharging slag; a plasma torch inclined at a predetermined angle with respect to the internal bottom surface of the main reactor to induce a single cyclonic gas flow which rotates about an essentially horizontal axis above the bottom surface of the main reactor for, pyrolyzing and vitrifying the waste materials in the main reactor; wherein the cyclonic gas flow rotates throughout substantially the entire main reactor; a gas burner arranged with the plasma torch to direct a flame into the main reactor in manner to promote heating of the main reactor; an auxiliary reactor connected to the exhaust gas outlet of the main reactor, for discharging exhaust gas; a slag discharger connected to the slag outlet of the main reactor, for discharging the slag; wherein the plasma torch circulates the gas in the main reactor and subjects flyashes contained in the circulating exhaust gas to centrifugal force, causing the flyash to melt and to be absorbed into molten waste materials on both inner walls and the bottom surface of the main reactor.