PURPOSE: To enhance disintegration efficiency of phanerocrystalline limestone by providing an inner cylinder having diameter smaller than a horizontal rotary table closely to the upper face of the table and providing a vertically freely movable outer cylinder closely to the outer circumference of the inner cylinder and providing a plurality of projected materials on the tables.
CONSTITUTION: A horizontal rotary table 2 is fitted to the top part of a vertically provided main shaft 8 which perforates the bottom plate of a housing 1. An inner cylinder 3 has diameter smaller than the table 2 and is formed into a cylindrical shape and provided closely to the upper face of the table 2. A vertically freely movable cylindrical outer cylinder 4 is provided closely to the outer circumference of the inner cylinder 3. Further, a product is led by a scraper 12 to a discharge port 11 projected to the side face of the housing 1. Furthermore, at least one piece of projected material 7 is provided on the table 2. As a result, the disintegration efficiency of phanerocrystalline limestone is enhanced and also the initial cost and the operating cost are made inexpensive.
MIYAZAKI FUJIO
MATSUDA HIROYUKI
HASEGAWA ATSUSHI
KAMEI TAKESHI
