PURPOSE: To prevent treating liquid from being stuck on a screw blade and the surface of a vessel main body and to quantitatively discharge it by providing a conical vessel for heating to the central part of an inverted conical vessel main body and passing a heating medium from the outside and providing the screw blade between the vessel main body and the vessel for heating.
CONSTITUTION: A jacket 2 is provided to the outer circumference of an inverted conical vessel main body 1. An inverted conical vessel 4 for heating described below is provided along the inner surface of the vessel main body 1. In the inverted conical vessel 4, a heating medium is passed through a pipeline 5 for passing the medium. Further a screw blade 3 is provided between the vessel main body 1 and the vessel 4 for heating. Treating liquid flowing from the upside is heated on the inner surface of the vessel 4 for heating and falls along the surface thereof without being deteriorated in fluidity by cooling and is introduced into the screw blade 3 part. This treating liquid is forcedly and continuously discharged from an extraction port 6 by rotation of the screw blade 3.
IHARA KAZUO
KINOSHITA TAKATOSHI
