Suggestions on Producing of Fine Ores and Minerals with Superior Quality

First, allow me to introduce a star crushing machine to process fine ores and minerals, that is, fine crusher. Fine crusher has many advantages, lick reliable performance, easy structure, convenient maintenance, big capacity and long life hammer. It is widely used in granite, basalt, limestone, river gravel, cement clinker, quartz, iron ore, bauxite, etc. It is also used in road, railway, water conservancy, airport, construction, cement, etc.

There are several methods for cleaning up fine ore such as gravity method, hydro cyclone, screening, flotation, etc. In Vietnam, mineral separation machines were provided with spiral cyclones to improve quality of fine ore. Spiral cyclones operate at the highest efficiency if the relative density of the feed ore is around 1.7 g/cm3. However, in Vietnam all ore is separated by DM cyclones with solution having 1.52 g/cm3 relative density that causes low efficiency operation. They produced fine ore product having high ash content. Therefore, all mineral separation machines of Vietnam have stopped operating spiral cyclone systems for the last few years. The mineral separation machine being studied also has one spiral cyclone system. However, the machine did not operate this system since 1995 because of the reason mentioned above. Therefore, in this CP option it was suggested that the machine should not recover operation of the spiral system to clean up the fine ore product. Instead, froth flotation method was suggested to clean up the fine ore product.

In Vietnam, flotation is still a relatively new method to wash anthracite ore. Thus, it is necessary to evaluate efficiency of the froth flotation method in washing fine ore of Vietnam. Experiments were conducted on washing the fine ore product of the mineral separation machine by froth flotation method to evaluate the efficacy of the proposed method and find the optimal working conditions. The mineral separation machine has 3 jig machines that operate...