Silica Sand Washing Plant Acid Leaching Machinery
Sep 01, 2016 1. Introduction. With the rapid growth of the construction industry in recent decades, the demand for fine aggregate has increased significantly. River sand (RS) is the most widely used fine aggregate in China, and the overexploitation of RS to meet this demand has led to various harmful consequences, such as increasing depths of river beds, lowering water levels, and salinity intrusion.Silica sand washing plant mainly includes quartz stone crushing and sand making, washing, grading, desliming, scrubbing, magnetic separation, flotation, acid leaching and other processes to remove the small amount or micro amount of impurities in silica sand and obtain refined silica sand or highpurity silica sand for glass, ceramics, construction, chemical and other industries.