| 摘要 |
PURPOSE:To enable to prolong the contact time between a liq. to be treated and a heating body by providing a container with a spiral heating body in its interior and a heating body having an untreated liq. supply part on its exterior. CONSTITUTION:A heating tube 2 is provided on the exterior of an evaporator with a spray nozzle 4 as an untreated liq. supply member for supplying a liq. waste 3. The heating tube 2 is maintained at a high temp. by passing a high temp. vapor therethrough. The liq. waste 3 is then continuously sprayed from the spray nozzle 4 to attach the liq. particles 5 to the outer surface 6 of the upper heating tube 2a. In doing so, the screen of the liq. waste is formed over the entire periphery of the outer surface 6 and the liq. screen on the lower part of the outer surface 6 partially reduces into water droplets 7 which are gradually moved downwardly and fallen off from the lowest part of the heating tube 2. This enables the heating efficiency to be improved. |
