Abstract:
Sustainable development is inseparable from the rock material used, one of which is rock excavation material in the form of andesite. PT Cahaya Baru Madani will design a crushing plant located in Giriasih Village, Batujajar District, West Bandung Regency, West Java Province. The area of land acquisition that will be carried out is 3,935 m2 and the land that will be used for the crushing plant unit is 2,697 m2.The processing activities of andesite rock excavation at the PT Cahaya Baru Madani crushing plant unit consisted of four stages, namely feeding using a grizzly feeder, primary crushing using a jaw crusher, secondary crushing using a cone crusher and sizing using a vibrating screen. The crushing plant unit is also assisted by supporting tools namely hooper and belt conveyor. The assumed effective time at the crushing plant is 4,5 hours with a job efficiency of 75%. Feeds coming from mining companies are 600 tons/day. The type and condition of the base material cannot be determined because the results of the mining blasting were not carried out directly by PT Cahaya Baru Madani. The final product is divided into 4 types namely split 1 (3+2 cm), split 2 (-2 +1 cm), split 3 (-1+0,5 cm) and stone ash (-0,5 cm) with a total production of 110,11 tons / hour. The machine used in the crushing plant unit are one hopper with a capacity of 58,875 m3, 1 unit of GZD-850 grizzly feeder, 1 unit of 600x900 jaw crusher, 1 unit PYB1200 cone crusher, 1 unit of 3YZS1548, vibrating screen and 7 unit of belt conveyor.
