Shell liners wear very fast in very large diameter autogenous and semi-autogenous mills. In addition to shell liner wear, the ends of the mill are
Determine what diameter piping is necessary to obtain sufficient water flow to spray nozzles used for dust suppression. A simplified, diagrammatic method of calculating the flow
Among the significant technological accomplishments of the third quarter of the 20th century was the wide application of vacuum-to-metal melting. Many of the more common
All metallurgical reactions are dependent on time, temperature, atmosphere (reducing or oxidising) and particle size. Particle size has been discussed and atmosphere will be discussed
The choice between wet and dry milling is, in general, unimportant in small-scale milling but is a major technical problem when large-scale milling in the
In an air-swept mill, the body of which does not differ significantly in general design from a trunnion overflow mill, a powerful stream of air
The general use of chemical grinding aids involving several different mechanisms for increasing throughput in the wet grinding of ores has been discussed in a
Shortly after start-up, it was apparent that it would be difficult to obtain the plant design throughput. The ore sample that had been used for
All forms of “lime” are used in the steel plant. Calcium hydroxide is used for water treatment, acid neutralizing, and as a lubricant for wire
Quartz did not float significantly at any pH value between pH2 and pH12 when any of the anionic collectors were used. The flotation of alumina