APPARATUS FOR SIMULATING MOTION OF MOTION IN CRUSHER AND APPARATUS FOR SIMULATING QUANTITY OF ENERGY FOR ACTUATING CRUSHER

Japanese Patent JP3796027

B2

PROBLEM TO BE SOLVED: To reduce the load of a computer and conduct simulation correctly by a method in which agitation bodies protruded from an outer cylinder and an inner cylinder to a crushing space are expressed as an aggregate of spherical bodies, and the simulation of the motion of a medium (ball) is conducted by using a discrete element method.
SOLUTION: In a rotary mill in which an outer cylinder 1 and an inner cylinder 2 in which rectangular parallelopiped-shaped agitation blades 4, 5 are protruded are installed on an inside surface and an outside surface respectively are arranged concentrically, numbers of balls 6 are placed in the space between the cylinders 1, 2, and each cylinder 1, 2 are rotated reversely, when the motion of the balls is simulated, a discrete element method is used. Namely, with the use of the agitation blades 4, 5 and the central coordinate and radius of the balls 6, when boundary conditions in which both blades are brought into contact are satisfied, and the contact of the blades 4, 5 and the balls 6 is confirmed, a contact point coordinate is calculated by using the central coordinate and the radius, the minute time displacement of the contact point coordinate is calculated with the use of a minute time delimitation and a central coordinate velocity to obtain the minute time displacement of the balls.

Miyazaki Sachi
Fumiyoshi Saito
Junya Kano

JP31705597A

July 12, 2006

November 18, 1997

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Sekisui Chemical Co.,Ltd.

B02C17/00; B02C25/00; G06F17/00; G06F19/00; (IPC1-7): B02C17/00; B02C25/00; G06F17/00

JP63315156A
JP10314609A
JP10034000A
JP10260160A

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