Analysis of Ore Hand-Crushed Size Distribution for Grinding Process in the Artisanal and Small-Scale Gold Mines Production: A Case Study of Nholi Mine, Bahi District

In many parts of the world, artisanal and small-scale gold mines (ASGM) employed numbers people compared to large-scale mines. The ASGM has been played a crucial role in poverty alleviation rural development, particularly developing countries. mined ore is crushed ground for beneficiation gold. grinding process involved size reduction blasted materials acquire minerals interest. This paper presents distribution hand-crushed using sieve analysis digital image processing. test results material three muck-piles were ranged between 17 mm 36 that equivalent 20% 80% passings respectively, with an average 26 mm. processing about 19.8 passing 58 passing, 36.06 provided wide range than required unit increased oversize by 18%. provides different sizes leading increase residence time power consumption units.