Iron Ore Dry Grinding SystemsJanuary 5, 2018

Summary:Improve the cleanness of lubrication system in crushing and grinding equipment in beneficiation plant can ensure the smooth of lubricating oil circuit and the normal lubrication of the friction pairs

Dry Grinding Application

Dry grinding is the operation where the particle size of a material is reduced without liquid. In many cases, dry grinding is a very simple process, often only requiring a few steps. Dry grinding is generally much less expensive than wet grinding, the other popular grinding method, but it doesn’t work as well for some tasks.

A common way to break down ores and other hard raw materials for further processing, dry grinding requires material being placed into a grinder or grate mill for reduction where it is pulverized by physical force.

Iron Ore Dry Grinding Systems

Iron ore grinding can be processed in dry or wet operation. The choice of grinding circuit is based on the density and hardness of the ore to be ground. Although most taconite operations employ rod or mill grinding, a few facilities use autogenous or semi-autogenous grinding systems. Autogenous grinding uses coarse pieces of the ore itself as the grinding media in the mill.

For drying grinding processes, a large variety of technologies has been developed. Even for the fine particle range below 100 micron, many different mill types can be used. Iron ore dry grinding systems include ball mill, raymond mill, trapezium mill, ultrafine mill, vertical mill, high pressure mill etc.

Ball Mill for Iron Processing Plant

Here is the one optional for iron ore processing plant flow sheet: primary crushing milling in closed circuit with hydrocyclones and pebble crushing rougher magnetic separation ball milling cleaner magnetic separation tertiary milling using stirred mills second cleaner magnetic separation.

Ball mill is the key machine in iron ore processing plant, it produce fine material product and prepare for further processing. Because the structure of ball mills is simple and it is easy to operate, and so ball mill is extensively used in ultra-fine grinding activities in industrial production.

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