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Analysis about growing trend of ore milling equipment

Ore milling equipment has the following advantages: high enrichment ratio, high recovery, low operating costs, especially it is suited to deal with micro-fine and easy automatic control. After decades of research and development, ore milling equipment has been widely accepted at home and abroad; it is used to separate various kinds of ore and coal; What’s more, ore milling equipment which has the advantages of novel structure, unique design, and high efficiency is become more and more popular. Flotation machine bubble generator, ore pulp, the bubble flow characteristics and interactions, higher accuracy of mathematical models and magnified method, electronic automatic control system will continue to be the important future research.
Our research and application of the flotation machine ‚boom‘ hurriedly disappeared since the 1970s; few people focus on this field. As the fine-grained and dressing are difficult, the contradiction between sorting set and separation process is very conspicuous (Our country own high level in pharmaceutical processing and beneficiation process). Flotation column generally considered to be one of the most promising devices, which should make us organize forces to catch up with the world advanced level on the basis of a follow-up study and create the proper flotation column which is suitable to our resources characteristics. The development direction of ore milling equipment focus on the following field: filling medium (create static environment and improve mineralization efficiency), micro vesicle, combination of turbulence efficient mineralization and static separation. The new areas of the application of ore milling equipment is become larger, such as pre-removal of the organic in electrolyte in order to make the electrolysis process more stable. China is still in a fledging period, but because of the huge market prospects and capacity. We will believe that it will bring new opportunity to the research and application.
Although the structure and form of ore milling equipment have different progress, the general performance has the following aspects:
1. Bubble generator: Basically, the built-in bubble generator which was created in 60 to 70 years of the 20th century is developed into external which has proper and advanced foaming way. There is vortex bubble generator, venture tube bubble generator, line mixer, high efficient pneumatic-type inflator and so on.
2. Filling media: In recent years, there have been many types of filling media and media bed, which solve the problems of filling media easy to plug in the alkaline, improve the stability of flow pattern in the column slurry and uniformity of bubble column.
3. The height of column: From ten meters to a few meters, the height to diameter ratio of large-scale the decreases gradually, even if the height of large-scale flotation column is basically ten meters below.
4. The time of pulp in ore milling equipment is become shorter.
5. The research which is about mathematical modeling and enlargement in terms of ratio is become deeper and deeper.
6. It will develop towards large-scale and series direction.
7. There has been great progress in ore discharge and ore feeding.

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