Ball mill - Wikipedia
A ball mill, a type of grinder, is a cylindrical device used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints.Ball mills rotate around a horizontal axis, partially filled with the material to be ground plus the grinding medium. Different materials are used as media, including ceramic balls, flint pebbles, and stainless steel balls.How To Make Gun Powder The Old Fashioned Way in Less Than,,Dec 30, 2016· Adding water to mixed black powder can cause the potassium nitrate to re-crystallize, which will reduce the power of the powder unless it’s re-crushed or run through a ball mill again. If dampening the finished powder, prior to pressing into puck for corning, if just needs to be dampened a little like with an iron-board sprayer bottle.Black Powder Guns, Supplies & More | Cheaper Than Dirt,Black powder guns are a whole different ball game compared to shooting standard firearms, but are still used for sport, reenactment, and enthusiast shooting. Cheaper Than Dirt! has the supplies that you need to get started in black powder shooting, including powder, patches, wads, and projectiles.