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This paper evaluates fragmentation behaviour, particle size distribution and liberation degree during bed comminution of particles. Three different cases of bed comminution are modelled through discrete element simulations. The role of stressing velocities on breakage, effects of crushing walls on fragmentation and influence of crushing gaps on liberation and particle size distribution are considered...
The common use of air-swept ball mills in coal power plants is largely attributed to the ease of discharge of the pulverised coal by entrainment in the air stream passing through the mill. The efficiency of mill product discharge (which determines the capacity of the power plant), depends on the mill design and operating conditions. Presented in this paper is an investigation of the effect of liner/lifter...
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