Improvements in flotation technology in the Makeevka C and CW washeries
The Makeevka C and CW operates two washeries, each with a capacity of 2.5 million tons/year. Most of the coals come from the Donbas and have good to moderate cleanability, but in recent years both washeries have had to accept 10 to 12% of Pechora, Kuzbas, and Karagande coals. The flotation sections are vital elements in the processing flowsheets, since in addition to recovering coal substance from the slurry they contribute to the reclamation of washery water in circulation. The capacity of the flotation machines in the Makeeva C and CW washeries is relatively low, and the number of machines in each washery must therefore be increased to 4 to 5. The machines are consequently set up at low levels, which increases the labor and material costs of operating them. The future plans for the flotation sections envisage the installation of 900 to 1000 m/sup 3//h machines. The unit capacities of the vacuum filters must also be increased; it is planned to install filters with a filtration surface area of 140 m/sup 2/ or more each. These modifications will greatly simplify the processing flowsheet and facilitate full automation in the flotation and filtration sections.
- OSTI ID:
- 6922026
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 8; ISSN COKCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ASIA
AUTOMATION
CARBONACEOUS MATERIALS
COAL
COAL PREPARATION
COAL PREPARATION PLANTS
COMMINUTION
EASTERN EUROPE
ENERGY SOURCES
EUROPE
FILTERS
FILTRATION
FLOTATION
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
MATERIALS
PERFORMANCE
REAGENTS
SEPARATION PROCESSES
USSR