| 摘要 |
<p>PURPOSE:To widen the gas-liq. contact area by providing a lift for a rotating shaft. CONSTITUTION:A baseplate 14 is fixed to the hollow rotating shaft 3, and the lift 7 and an expansion joint 13 enclosing the shaft 3 are provided between the baseplate 14 and the upper surface 6A of a liq. storage tank 6. When the lift 7 is actuated, the shaft 3 is lifted up and down through the baseplate 14, and the agitating rod 1, gas injection pipe 3 and gas feed pipe 4 are simultaneously lifted up and down. Accordingly, the rod 1 and the pipe 2 are positioned at the bottom of the tank 6 when in operation, hence the slurry in the tank 6 is brought into contact with the injected gas over the entire part in the tank 6, and the clogging of the pipe 2 is prevented.</p> |
