The limestone is evenly sent into the coarse crusher by the vibration feeder for preliminary crushing, and then the coarse material produced is transported by the conveyor to the Counterattack crusher for further crushing, the fine crushed limestone is screened into the vibrating screen to separate different specifications of stones, and the stone that does not meet the particle size requirements is returned into the Counterattack crusher to break again. The main equipment in the limestone crushing production line is the Counterattack crusher, which increases the crushing and shaping process compared with the previous equipment, increases the crushing ratio and processing capacity, and greatly improves the output, increasing by about 30%. Throughout the process, the consumption of wearing parts has been significantly reduced by 20%.