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 Comprehensive Analysis of Ceramic Sand Mills: Core Equipment for High-Efficiency Grinding and Pollution-Free Production 1. Introduction   In the context of the global industrial upgrading and the in-depth implementation of environmental protection policies, ultra-fine grinding technology, as a key link in the deep processing of products, has higher and higher requirements for equipment performance—while ensuring high grinding efficiency and precision, it must also meet the requirements of pollution-free production and low environmental impact. Traditional metal sand mills (such as steel sand mills, stainless steel sand mills) have obvious defects in the grinding process: the wear of metal components is easy to cause material contamination, which cannot meet the high-purity requirements of products in fields such as pharmaceuticals and food; the corrosion resistance is insufficient, and it is difficult to adapt to the grinding of corrosive materials; the high wear rate leads t...