STIRRING DEVICE WITH AIR INJECTION

摘要

PURPOSE:To provide the titled device having improved air/liquid contact efficiency requiring optimum energy by a constitution wherein air is atomized through slits disposed on a rotary disc provided above an air diffuser and the air and the liquid are circulated by the stirring blades provided in a vertical cylindrical pipe. CONSTITUTION:Liquid L is filled in a vertical vessel 11 of a stirring device with air injection. Compressed air A from a high pressure air source 22 is ejected through an air ejecting nozzle 21 of an air diffuser 12 at the bottom of the vessel. A rotary disc 15 provided above the air diffuser 12 is rotated at high speed by a motor 13 through a supporting shaft 23 and the air is atomized by many slits 14 disposed at the periphery of the rotary disc 15 to increase the air/ liq. contact area. Further, stirring blades 16 attached to the supporting shaft 23 in said vertical cylindrical pipe 17 attached through a supporting body 28 to the inside wall of the vessel 11 are rotated to generate circulating stream regulated by vertical plural baffle boards 18 protruded from the inside wall of the vessel 11 to disperse fine bubbles and suspending solids in the liquid L uniformly in the entire part of the liquid.