Research Institute of Comprehensive Exploitation of Mineral Resources, Moscow, Russia:

A. A. Lavrinenko, Head of Laboratory, e-mail: lavrin_a@mail.ru

This paper gives a brief historical review of the ways of flotation machine constructing for solid minerals concentration in Russia among the development of flotation machines in the world. Flotation process urgency during the mineral resource concentration is shown together with the main role of aerohydrodynamics conditions of interaction of flotation phases, provided by machine design peculiarities. There is also shown the trend of large chamber use and primary meeting the flotation machine requirements in Russia in the last years due to the foreign suppliers. The main enterprises, designing and producing of flotation machines from the beginning of the second part of the 20-th century are shown, and the types of designed impeller and columnar flotation machines with various design are discussed. Modern Russian large enterprises, creating the tens of apparatus designs, are similar to the foreign ones. Nowadays, for the purpose of intensification of the process flotation, various Russian producers create the impeller machines with capacity up to 100–300 m³ and high production data. However, foreign countries have been already using the flotation machines with capacity up to 300–500 m³, and begin to use the machines with capacity of 600 m³. Columnar flotation machines have been not so widely used in Russia as abroad (including high-efficient aeration units). However columnar flotation machines now have a break into the world market, and the process of spray and pneumohydraulic aeration out of flotation chamber are prospective in the conditions of high ratios of interaction of pulp and air flows.

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