| 摘要 |
PROBLEM TO BE SOLVED: To provide an aggregate polishing device suited for polishing a crushed material such as crushed sand to be an aggregate material for concrete. SOLUTION: This aggregate polishing device 1 is provided with a rotating plate 6 provided with a plate surface 6a having a conical-shape part enlarging downward, having a longitudinal cross section of the plate surface curved into a recess shape from the central part to the outer circumference part, and freely rotating around a rotation axis core, and an outer circumferential annulus 7 provided with an inner wall surface 7a having a part reducing upward and having the longitudinal cross section of the inner wall surface 7a curved into recess shape. The rotation axis core is inclined in the range of 10-30°relative to the vertical direction, a product take-out hole 40C is provided in the inclined direction of the rotation axis core in the upper part of the outer circumferential annulus 7, and a polishing/crushing bowl is disposed in a crush chamber 27 formed with the plate surface 6a and the inner wall surface 7a. COPYRIGHT: (C)2003,JPO |
