| 摘要 |
PURPOSE:To constitute easily a continuous mixing and stirring device by a controlling means for heating a working piece prior to starting of said piece in order to decrease the viscosity of the liquid handled by controlling the supply of power sources to said means without using any external means such as heaters. CONSTITUTION:When a metal is placed in an AC magnetic field, an eddy current flows therein and the metal evolves heat. Therefore, when the output of a frequency converter 22 is supplied as a high frequency current to shifting magnetic field generators 23,24, a large calorific value is obtd. in a vessel 25 itself when the vessel is made of a metal and in a working piece made of a metal when the vessel is a non-metal, by which the liquid to be treated is heated. The output of the converter 22 is supplied as a low frequency current to the generators 23, 24 in the stage of driving the working piece. The need for external means for heating is thus eliminated and the continuous mixing and stirring device which treats the plural vessels successively is easily constituted. |
