Submit an Article
Become a reviewer
Vol 178
Pages:
64-68
Download volume:
RUS
Article

Hydraulic coarseness of coal particles

Authors:
A. B. Nezametdinov
About authors
  • G.V. Plekhanov Saint Petersburg Mining Institute
Date submitted:
2007-11-13
Date accepted:
2008-01-01
Date published:
2008-11-18

Abstract

Having accounted coal particles after fragmentation on different equipment, particles in the form of needles, cubes, plates, blocks and pyramids were distinguished. After the analysis of the research to define the speed hindered falling of particles of different forms in water (hydraulic fineness) there have been proposed dependencies considering the density of the heterogeneous carrier phase, effective viscosity of water containing coal mud in different quantity, equivalent diameter for different forms of coal particles and the seeming density of dry coal at a specific ash content and average humidity.

Область исследования:
(Archived) Technological machinery and equipment of mining and oil & gas industries
Go to volume 178

Similar articles

Calculation of loads on walls of cylindro-conical hoppers.
2008 A. P. Batalov, E. A. Kremcheev
Determination of operation modes of step mine drainage systems without intermediate water collectors
2008 O. V. Kabanov, D. A. Zadkov, S. O. Kabanov
Improvement of heat treatment regimes of cutters of road-headers for increase of their wear resistance
2008 V. I. Bolobov, V. V. Gabov, D. A. Zadkov, A. V. Tetervak
Microprocessor excitation systems of electromechanical complexes with synchronous motors
2008 D. A. Ustinov
Reduction of influence of higher harmonics on work of electrical complex of mining enterprise
2008 Ya. E. Shklyarskiy, D. A. Sitnikov, A. N. Skam'in
Bench studies of a manual perforator with a piston-bowl impact system
2008 A. Ya. Burak, D. A. Jungmeister, A. Yu. Vasiliev, Yu. V. Sudienkov