FINE BUBBLE GENERATING APPARATUS AND FLOATING SEPARATION APPARATUS USING THE GENERATING APPARATUS

摘要

PURPOSE:To generate fine bubbles by striking a gas led to a cylindrical unit against a rotary column body bridged in the cylindrical unit to generate bubbles and breaking the bubbles with projected object in the circumference of the column and striking the bubbles further to a rotary disk rotating at high speed. CONSTITUTION:A liquid ejecting outlet 6 is formed in the side wall part of a cylindrical unit 3 both ends of which are closed and at the same time a liquid sucking inlet 5 and a flocculant supplying pipe 8 are installed in the cylindrical unit 3. Also, an air supplying pipe 14 which generates bubbles by striking air against a rotary body 4 of a column bridged in the cylindrical unit 3 is led to the inside of the cylindrical unit 3. Projected objects 12 to break the bubbles are formed in the circumference of the rotary body 4 and a rotary disk 9 having recessed and projected blocks 13 to break the fine bubbles further is formed in the end part of the rotary body 14 positioning the liquid ejecting outlet 6. As a result, a large amount of fine bubbles as small as <=500mum diameter are generated.