Abstract
In this paper, techniques for processing industrial waste by arc plasma which generates among six carbon electrodes using a six-phase current power supply and its applications are described. The power supply of this system can be realized by the combination of three single-phase transformers with the center-taped secondary coil. The characteristics of arc plasma generated around the discharge electrodes and a few examples applying an arc plasma to industries are presented here. The major advantages of this system are as follows:
(1) As arc plasma always exists in the discharged space, the stable discharge phenomena can be maintained in low voltage,
(2) Arc plasma at high temperature can be obtained in a wide space.
By the use of this system, incinerated urban garbage can be slagged, and a lot of spherical ceramics of about 200 microns in diameter are obtained from ash generated by the operation of power plants.
