| 摘要 |
PURPOSE: To obtain high evaporation efficiency by improving a film-type evaporator and with a few construction cost. CONSTITUTION: This improved evaporator is characterized as the follwing: the rotor 21 in the area of its larger diameter, is connected to the drive shaft 25 via a cross supporter 22 having at least each one suporting arm 23, 24 for feeding and removing the heating medium. And in the area of its smaller diameter, a conical immersion tube 41 rotating with the rotor 21 is traversed, the immersion tube, with its smaller diameter, is immersed in the treated liq. or the concentrate in the lower part 5 of the container 1, and on its larger diameter, is connected to the drive shaft 25 of the rotor 21, and the connected part has an overflow edge 42 feeding the treated liq. or the concentrate on the heating surfaces 32.
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