Coal Comminution by High Pressure Water Jet
Conventional crushing technology relies to a large degree on the compressive forces induced in a piece of coal as it is caught between two approaching surfaces. Coal is definitely weaker in tension than it is in compression and this is particularly true for coal which is pervaded by small microcracks and fissures. By taking advantage of these factors and using the technology of high pressure water jet cutting it is possible to make a significant advance in the field of coal and other material disintegration. This paper describes preliminary experiments with high pressure water jets operating on the range of up to 40,000 psi in the system specially designed for this experiment. An evaluation of this system is presented and power requirements are discussed for various size ranges of the crushed coal which can be generated.
G. Galecki and M. Mazurkiewicz, "Coal Comminution by High Pressure Water Jet," Proceedings of the 8th International Symposium on Coal Slurry Fuels Preparation and Utilization, Pittsburgh Energy Technology Center, Jan 1986.
8th International Symposium on Coal Slurry Fuels Preparation and Utilization.
Mining and Nuclear Engineering
US DOE, Pittsburgh Energy Technology Cent, Pittsburgh, PA, USA
Article - Conference proceedings
© 1986 Pittsburgh Energy Technology Center, All rights reserved.