INDUCTOR COIL USED IN LEVITATIONAL GAS CONDENSATION MACHINE FOR NANO-SIZED POWDER PREPARATION AND METHOD FOR PREPARING NANO-SIZED POWDER USING THE SAME

摘要

An inductor coil equipped in a levitational gas condenser for producing nano-sized powder is provided to improve efficiency of input energy and to stably maintain magnetic levitation of liquid spheres for a long period of time, thereby producing uniform size of nano-powder by adapting the inductor coil capable of forming nearly symmetric magnetic field in up and down directions. The inductor coil has upper coil and lower coil structures, liquid sphere levitated in a space between the upper coil structure and the lower coil structure, two center points that have circular cross-sections perpendicular to gravity of the upper coil structure and the lower coil structure and are presented in a straight line with the gravity direction. Winding number of the coil around the lower coil structure is one time more than the winding number of the coil around the upper coil structure. Maximum magnetic flux density by the lower coil structure to maximum magnetic flux density by the upper coil structure is 0.7 to 1 in the gravity direction.