OPERATION CONTROL METHOD AND APPARATUS OF UNIAXIAL CRUSHER

• Main Authors: SUZUKI TAKAO, INOUE JUNICHIRO, NISHI MASAHIKO, HASEGAWA TAKASHI, NAGAMINE YUTAKA, TOMIOKA JUNICHI
• Format: Patent
• Language: English
• Published: 08.12.2011
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; ELECTRICITY; GENERATION; MILLING GRAIN; PERFORMING OPERATIONS; PREPARATORY TREATMENT OF GRAIN FOR MILLING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a high efficiency operation method and apparatus, by which rotor rotation speed is controlled so that a large processing speed may be obtained in accordance with a condition of a material to be crushed in a uniaxial crusher.SOLUTION: In the uniaxial crusher, a material 11 to be crushed is crushed by being supplied for example by a pusher 3 driven by a hydraulic cylinder 5 to a rotor 1 that rotates with a large number of blades 13 mounted on the outer circumference. The operation control method of the uniaxial crusher includes: a step of prestoring a set value of the speed of the rotor 1 in a region divided with a threshold predetermined on the load of the rotor 1; a step of estimating the load of the rotor 1; a step of determining the affiliation of the region divided with the threshold with the estimated load of the rotor 1; and a step of adjusting the speed of a synchronous motor so that the speed of the rotor 1 may coincide with the set value in accordance with the load of the rotor.