Hydraulic system for mine operation machinery and use method

The invention provides a hydraulic system for mine operation machinery and a using method, and relates to the technical field of mine machinery, the hydraulic system comprises a box body, a mounting block is mounted in the box body, a crushing cavity is formed in the mounting block, an equipment block and an inclined block which is obliquely arranged are mounted in the crushing cavity, and a crushing block is arranged on the equipment block; the crushing assembly is arranged in the box body and is used for primarily crushing the ores; and the crushing assembly is arranged in the crushing cavity and is used for performing secondary crushing on the ores. Through the arrangement of the grinding assembly, ore raw materials can be preliminarily ground, the ore raw materials are secondarily ground in cooperation with the arrangement of the grinding assembly, and meanwhile the situation that the ground ores abut against each other and are clamped to cause blockage can be avoided. 本发明提供了一种用于矿山作业机械的液压系统及使用方法，涉及矿山机械技术领