US 12,239,995 B2
Method and system for monitoring a hydraulic system of a comminution apparatus
Ian VanZyl, Baldivis (AU); and Carl Nicholls, Forrestdale (AU)
Assigned to Metso Outotec USA Inc., Brookfield, WI (US)
Appl. No. 17/415,885
Filed by Metso Outotec Sweden AB, Trelleborg (SE)
PCT Filed Dec. 18, 2019, PCT No. PCT/EP2019/086114
§ 371(c)(1), (2) Date Jun. 18, 2021,
PCT Pub. No. WO2020/127596, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18215473 (EP), filed on Dec. 21, 2018.
Prior Publication US 2022/0072560 A1, Mar. 10, 2022
Int. Cl. B02C 25/00 (2006.01); B02C 1/00 (2006.01); G05D 16/20 (2006.01)
CPC B02C 25/00 (2013.01) [B02C 1/005 (2013.01); G05D 16/2026 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A monitoring system for a hydraulic system in a comminution apparatus including at least one pressurized accumulator, wherein the pressurized accumulator comprises a first chamber containing hydraulic liquid and a second chamber containing a pressurized gas, wherein said monitoring system comprises at least one pressure sensor and a control unit, wherein said pressure sensor is connected to said control unit, said pressure sensor being arranged to measure a pressure in said at least one accumulator and wherein the control unit is configured to determine that a pressure in said accumulator is outside of a predefined range and wherein the control unit is further configured to control a pressure regulating system arranged to restore the pressure in the pressurized accumulator, wherein the pressure sensor is arranged to measure a gas pressure in said second chamber, wherein the second chamber of each accumulator is connected to a source of pressurized gas via a manifold block, and wherein the manifold block comprises solenoid valves.