| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a medicine cylinder capable of always obtaining a stable drug concentration in wastewater without being affected by fluctuations in the temperature and flow rate of wastewater even when various chemicals are used. provide. A plurality of slits 2 are provided on a lower side surface of the inner cylinder 1 at regular intervals along the circumferential direction of the inner cylinder 1. A threaded portion 3 is provided outside the inner cylinder 1 above the slit 2, a circular hole 4 is provided in the center of the bottom of the inner cylinder 1, and a convex portion (projection 5) protruding outward at the bottom of the inner cylinder 1. Is provided inside the upper part of the outer cylinder 7, and the screw part 3 of the inner cylinder 1 is provided. A screw portion 8 for screwing into the container and adjusting the height of the medicine barrel is provided, a first opening portion (notch portion) is provided in the lower portion of the outer cylinder 7, and the opposite side of the first opening portion is provided. A medicine cylinder provided with a second opening (notch) smaller than the first opening. |