To distinguish the mill, usually in the need to add metal medium (or great) of grinding machine is called the conventional grinding machine, such as the ball mill and bar mill. To obtain high grinding efficiency and improve concentration effect, must be selected according to the size of materials processing technology of ore properties, according to the requirements and the content of the grinding machine, appropriate chooses grinding machine. Gongyi enterprise factory building, metallurgy, technical staff of ball mill and great concentrator mill main characteristics and the applicable scope of the following: 1, grate ball mill. Due to the grid board and some measures of indoor fan, realizes the ascension of the low level, has been intimidating row of fine grinding ore not stay too long in the mill, timely eduction, crushing phenomenon, grinding speed, high efficiency. 2, the overflow type ball mill. This mill line of the hollow ore trunnion slightly greater than inflammation to cause the hollow trunnion grinding machine, the slurry for discharging certain slope surface height above pulp, when discharging caliber, pulp and minimum generatrix of the overflow, belong to the force of high level row, row ore mineral aggregate, slow granule in machine retained for a long time, the effective action is medium, low grinding mill type overflow so serious, also had the capacity than the same specification grate type low. Generally applicable to fine grinding or two in the second period grinding mill.
3, bar mill. Great is the medium mill, steel bar and mineral aggregate level after falling line contact surface grinding ore (i.e., selective in order from large to small pieces, so after crushing) light, mineral content grinding mill granularity, suitable for the coarse grinding mill mineral content or had shattered the light weight. (source: building equipment factory), metallurgical enterprise gongyi
