New aspects in the theory and practice of column flotation
- Inst. of Solid Fossil Fuels Preparation, Lyubertsy (Russian Federation)
- Angarsk Technological Inst. (Russian Federation)
The high efficiency of column flotation allows a reduction in process time, a decrease in the number of cleaner stages and in the volume of the circulating load in the flotation circuit, and, as a result of this, an increase in consistency and reliability of operations. Unique multisectional column flotation apparatuses were developed. To attain that aim particular hydrodynamics and aeration regime is established in each section of the column, operational variables being adjusted according to the floatability of the material. Therefore in multisectional column machines, the material-apparatus feedback can be established, and process variables optimized depending on the characteristics of the floated materials. Successful operation was reported of the new generation of columns with cell volumes of 10 to 80 m{sup 3} and the height of 4--6 m in copper, molybdenum, antimony, tungsten and nickel ores and coal slurry processing at different plants. Operational experience of these cells showed their considerable design and operational advantages and verified the proposed options and relationships. The new apparatus is provided with a pneumohydraulic aerator allowing to control bubble size distribution, the service life of the aerator is not less than two years. A multilevel flotation model was developed and used to work out a technique of column design and process parameters calculation. A method of the apparatus design parameters calculation based on laboratory test results (scaling up) was worked out.
- OSTI ID:
- 276667
- Report Number(s):
- CONF-9510120-; ISBN 0-87335-141-X; TRN: IM9636%%378
- Resource Relation:
- Conference: 19. international mineral processing congress, San Francisco, CA (United States), 22-27 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the 19. international mineral processing congress: Flotation operating practices and fundamentals. Volume 3; PB: 332 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Static column and its industrial application in China
Fine coal flotation of plant waste: An in-plant comparison - columns vs. sub-A cell