The Enclosures For Ball Mill of collapsible type Acoustic Wall and Roof Panels assembled on bolted structure. The enclosure will be provided with soundproof doors and glass windows in adequate numbers. To take away the heat built up inside the enclosure, forced ventilation package with ventilation exhaust blower, ventilation intake silencer and ventilation exhaust silencer will be provided. The openings that are required for piping, cables etc., will be acoustically sealed. Provisions for electrical and fire fighting system shall also be made.