Causes of ball mill accidents? Safety APC Forum
Hi, I have been reading many posts and other references in preparation of making my first batch of black powder including accident reports. I have a 15 lb capacity rubber lined rock tumbler (Thumbler's Tumblers) and 200 brass 1/2" beads. ... Unplug the ball mill and remove the ground, if by whatever there is an electrical charge built up, the ...