Patent ID: 7394041
Filing Date: 2008-07-01
Classification: F23G,H05H,Y10S

Abstract:
1. In a waste gas treatment apparatus having a waste gas inlet for flowing a waste gas into a main combustion chamber provided in empty space inside a body, and a plasma torch configured to propagate flames against the waste gas that is flowed through the waste gas inlet, the improvements comprising: a steam injection nozzle configured to eject high temperature steam against the flames emitted through a nozzle of the plasma torch; a reaction tube, extended longitudinally toward the bottom of the main combustion chamber in a tube shape, configured to perform the chemical reaction between a reaction accelerating compound and the waste gas induced by pressure of the nozzle of the plasma torch; a first reaction accelerating compound inlet configured to supply a reaction accelerating compound to the inside of the main combustion chamber so as to perform the chemical reaction with substances contained in the waste gas; a second reaction accelerating inlet configured to eject a reaction accelerating compound with water to the side of the reaction tube; and a filter provided on the side at the bottom of the body, wherein the first and second reaction accelerating compound inlets supply sodium hydroxide (NaOH) and water (H wherein the plasma torch comprises: a cathode electrode; a cathode electrode body where the cathode electrode is longitudinally assembled, a first combustion chamber is provided in the middle bottom thereof, and a cooling water channel is provided around the periphery thereof; an ignition electrode body, placed at a location spaced by a predetermined interval from the first combustion chamber of the cathode electrode body, provided with a second combustion chamber on the middle bottom thereof; an anode electrode body placed at a location spaced by a predetermined interval from the ignition electrode body; an upper insulator, provided with a gas injection nozzle for supplying a working gas from the outer periphery to the inner periphery thereof, configured to isolate between the cathode electrode body and the ignition electrode body; and a lower insulator, provided with the gas injection nozzle for supplying the working gas from the outer periphery to the inner periphery thereof, configured to isolate between the ignition electrode and anode electrode.