Title:
GYRATORY CRUSHER, AND CONTROL DEVICE AND CONTROL METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2024/080324
Kind Code:
A1
Abstract:
This gyratory crusher comprises: a setting sensor for detecting the setting of a gap between a mantle and a concave; a hydraulic circuit for generating cylinder hydraulic pressure for changing the setting in a hydraulic chamber that includes an accumulator; and a crushing load detector for detecting a crushing load. A control device of this gyratory crusher comprises: a load stabilization control unit for generating a setting target value for controlling the crushing load at a prescribed crushing load target value; a setting control unit that operates the hydraulic circuit and controls the setting at the setting target value; and a load abnormality sensing unit that determines a setting fluctuation index that indicates a degree of sudden increase in the setting, and senses an abnormal rise in the crushing load on the basis of the setting fluctuation index exceeding a prescribed setting threshold value.
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Inventors:
KAJITA NOBUYUKI
KIJIMA TAKASHI
KOBAYASHI JUN
ISHIZAWA MOTOAKI
YAMAMOTO KEITA
SAKAMOTO MORIYUKI
KIJIMA TAKASHI
KOBAYASHI JUN
ISHIZAWA MOTOAKI
YAMAMOTO KEITA
SAKAMOTO MORIYUKI
Application Number:
PCT/JP2023/036966
Publication Date:
April 18, 2024
Filing Date:
October 12, 2023
Export Citation:
Assignee:
KK EARTHTECHNICA (JP)
International Classes:
B02C25/00; B02C2/04; B02C23/00
Domestic Patent References:
| WO2020188824A1 | 2020-09-24 |
Foreign References:
| JPS555718A | 1980-01-16 | |||
| KR102148871B1 | 2020-08-27 | |||
| US4712743A | 1987-12-15 | |||
| JPH06182240A | 1994-07-05 | |||
| US20100181396A1 | 2010-07-22 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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