The invention relates to a magnetic rotating arc
plasma generator, and belongs to the technical field of
plasma generators. The magnetic rotating arc
plasma generator comprises a
cathode, a magnetic rotating arc
anode, a
rotational flow ring and an
anode water channel, and is characterized in that the
cathode and the magnetic rotating arc
anode are arranged in a coaxial manner; the magnetic rotating arc anode comprises an arc starting anode, a transition anode and a main anode, the transition anode comprises a conducting section and an insulating section, and the main anode comprises an
electromagnetic coil and a main anode body. The magnetic rotating arc anode is in the shape of a special-shaped circular tube on the whole, one end of the magnetic rotating arc anode is in the shape of a
bell mouth, and the middle of the magnetic rotating arc anode is provided with a through hole. The air flow generates a
rotational flow through the
rotational flow ring, the
electromagnetic coil generates an
electromagnetic field, the rotational flow and the
electromagnetic field compress the arc together and drive the arc to rotate, thereby enabling the root of the arc to rotate with a high speed on the main anode. The magnetic rotating arc
plasma generator has the advantages of high
arc voltage, low operating current, high electric-thermal conversion efficiency, small
electrode ablation amount, small fluctuation range of
arc voltage, wide power adjustment range, low operation cost, good disassembly and
assembly characteristic, high practicability and the like.