Method for operating a crusher, a crushing system and a crushing plant
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United States of America Patent
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Nov 24, 2020
Grant Date -
Apr 21, 2016
app pub date -
May 26, 2014
filing date -
May 28, 2013
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Abstract
A method for operating a mineral material crusher, a system including a crusher, and a crushing plant. The mineral material crusher, includes a first crushing element and a second crushing element, defining a crusher gap therebetween. The crusher gap is maintained using at least one hydraulic cylinder, the hydraulic liquid pressure in at least one of the hydraulic cylinders is measured and hydraulic liquid is evacuated from the hydraulic cylinder when the hydraulic liquid pressure exceeds a set opening pressure limit. During the crushing process the following steps are repeated: generating, based on the hydraulic liquid pressure measurement, a representative value of a normal hydraulic liquid pressure in the at least one hydraulic cylinder caused by the crushable material in that crushing application; comparing the generated representative value and the set opening pressure limit; and selecting opening pressure limit which is higher than the measured normal hydraulic liquid pressure.
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