Jul 26, 2007 · Wiki says "A ball mill is a type of grinder used to grind materials into extremely fine powder for use in paints, pyrotechnics, and ceramics." Many instructables refer to United Nuclear Ball Mills. Their small ball mill cost between 70 and 80 dollars.
We discuss the types of ball mill, the basic principles of the ball mill, how it works, the details of design including equations for optimum dimensions in all cases, some manufacturers for the ball mill, and estimation of the cost the ball mill. 1. Introduction Ball mill is an efficient tool for grinding many materials into fine powder.
According to the pattern, the residence time thresholds beyond which overfilling a ball mill is likely to occur were defined. For a ball mill with an internal diameter smaller than m, the volumebased residence time threshold is set at 2 min; and for a ball mill larger than m in diameter, the threshold is set at 1 min.
Ball Mills ROM Ball Mills. Ball mills accept feed that ranges in size from 80% passing 70mm (ROM Ball Mills) through 15 mm (post a tertiary crusher circuit) to fine feeds of less than 1mm in regrind operations. Products may be as coarse as mm or as fine as 40 microns and below.