PURPOSE: To contrive a uniform addition of additive liq. in very small amounts by a method wherein jets of the additive liq. are directed toward a communication hole of a main pipe with a higher force feed pressure than that applied to a main liq. by liq. injection means provided at an intermediate part of the communication passage of an additive liq. pipe, whereby the additive liq. joins the main liq.
CONSTITUTION: An additive liq. pipe 4 for supplying the flow of an additive liq. is connected to a main pipe 6 for supplying the flow of a main liq. in communication therewith. Jets of the additive liq. are directed toward a communication hole 6a of the main pipe 6 with a higher force feed pressure than that applied to the main liq. by liq. injection means 2 and 3 provided at an intermediate part of the communication passage of the additive liq. pipe 4, whereby the additive liq. joins the main liq. As a result, very small amounts of the additive liq. can be added uniformly into the liq. stream in the main pipe.
MURATA MINEO
INOMATA BUICHI
