Patent ID: 6781087
Filing Date: 2004-08-24
Classification: B09C,H05H

Abstract:
A thermal plasma generator comprising:a plasma generator unit having a housing, an arcing chamber inside the housing, first, second, and third primary electrodes spaced around the inside of the housing to define an arcing region between the primary electrodes within the arcing chamber, and an opening at one end of the housing for exhausting the plasma stream; power supply means to connect each of the first, second, and third primary electrodes to a separate phase of a three-phase alternating current supply voltage; adjustment means connected to each of the first, second, and third primary electrodes for adjusting each of the first, second, and third primary electrodes with respect to each other in order to form a predetermined gap between each of the electrodes; injector means to inject an ionized stream into the arcing region; working stream supply means to deliver and distribute a working stream into the chamber, the working stream supply means including a plurality of annular pneumatic rings attached to the housing inside the chamber, the rings attached to an external source of the working stream, and the rings including a plurality of vent holes through which the working stream can pass from within the rings into the chamber; and control unit means to control the thermal plasma generator unit, the power supply means, the injector means, and the working stream supply means.