Mobile crusher and crusher control method

Details Mobile crusher and crusher control method Mobile crusher and crusher control method

1997-07-23

1998-11-10

Husar, John M.

Solid material comminution or disintegration

Processes

Subjecting material to impact by moving comminuting surface

241 34, 241 35, 24110174, B02C 2102, B02C 2500

Patent

active

058331506

ABSTRACT:
The present invention is a mobile crusher and a method for controlling the same, wherein the most suitable amount of crushed substances can be always secured so as to obtain crushed substances having a desired particle size distribution. To this end, the crusher mechanism includes an actual rotational speed changing means (1, 2, 3); an actual rotational speed detecting means (4); a rotational speed setting means (7) for setting at least one target rotational speed Nm for the crusher mechanism (13) and for setting, for each target rotational speed Nm, a rotational speed Na indicating a starting of supplying raw materials and a rotational speed Nb indicating a stopping of the supplying of raw materials; and a control means (6) for controlling the crusher mechanism such that an actual rotational speed N coincides with the target rotational speed Nm, starting the supplying of raw materials from a raw material supply device (14) when the actual rotational speed N increases to a rotational speed Na, and stopping the supplying of raw materials when the actual rotational speed N decreases to the rotational speed Nb.

REFERENCES:
patent: 3078051 (1963-02-01), Patterson
patent: 3459378 (1969-08-01), Hill
patent: 4267981 (1981-05-01), Rowland, Jr.
patent: 4635858 (1987-01-01), Welch et al.
patent: 4804148 (1989-02-01), Etheridge
patent: 5580004 (1996-12-01), Tamura et al.
patent: 5716014 (1998-02-01), Tamura et al.
patent: 5730373 (1998-03-01), Tamura et al.

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