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根据冶金部下达的国家重点科研项目“露天铁矿强化开采”的要求,为解决采场大块二次破碎,由长沙矿山研究院研究设计、嘉兴冶金机械厂试制的SYD—400型液垫式高能液压碎石器和YSJ—1型移动式液压碎石机在南京白云石矿进行了五个月工业试验,破碎大块1535块,平均块度1.85米~3,采场平均台班效率72块,日处理量300吨,这种碎石机可作为中小型矿山采场大块二次破碎的设备,碎石器配悬臂机架和动力、液压装置后也可用于溜井格筛口,破碎机口。液垫式高能液压碎石器设计新颖,结构合理。它是在冲锤与凿杆之间用液油垫作缓冲垫,与常规的钢对钢直接冲击比较,其活塞冲击速度高,而机件工作应力低,冲锤的重量可
According to the requirements of “Strengthening Open-pit Iron Mines” issued by Ministry of Metallurgy, the SYD-400 liquid pad type trial-developed by Changsha Research Institute of Mining and Metallurgical Machinery to solve the secondary crushing of stope was adopted. High-energy hydraulic stone crusher and YSJ-1 mobile hydraulic rock crusher in Nanjing dolomite for five months of industrial tests, crushing large block of 1535, with an average block size of 1.85 m ~ 3, stope average staging efficiency of 72 Block, the daily capacity of 300 tons, this lithotripter can be used as small and medium-sized mine stope second large crushing equipment, stone crusher with cantilever rack and power, hydraulic device can also be used after the slip-grid sieve, broken Machine mouth. Fluid cushion high-energy hydraulic gravel design, reasonable structure. It is between the hammer and chisel with a cushion of liquid oil cushion, compared with the conventional steel on the direct impact of steel, the piston high impact speed, and the work of low mechanical stress, hammer weight