Yield and Energy Optimizations of Compressive Crushing
With the growing environmental concern, as well as the increasing concern for sustainability of natural resources, the need of improving the performance and efficiency of todays crushers is becoming increasingly important. However, the development of existing crushers requires an extended basic knowledge about the crushing process itself. The aim of the present study is therefore to find the theoretically optimal way of crushing corapressively under given circumstances.In the present paper, optimizations have been performed with the purposes of maximizing product yield and minimizing energy consumption. Performed on an ideal crushing stage free from physical limitations, the optimization results have been obtained in terms of number of compressions and their corresponding compression ratios. Complementing earlier results on interparticle breakage (Hulth(e)n et al., 2006), presented here are thus the results from corresponding optimizations with single particle breakage and interparticle breakage. It is concluded that modern crushers are not working optimally in any of the studied aspects for gneiss. In fact, optimizations indicate that a lowering of the compression ratio, as well as a shortening of the crushing sequence, are theoretically favourable. The outcome of this study is therefore highly promising as to giving new ideas and suggestions of improvements in existing crushers, and can even result in redesign of compression crashers.
Optimization Compressive crushing Energy Single particle breakage Interparticle breakage Yield
E. Lee C. M. Evertsson
Chalmers Rock Processing Research, Dept. of Applied Mechanics, Chalmers University of Technology,Got Chalmers Rock Processing Research, Dept. of Applied Mechanics, Chalmers University of Technology, Go
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
316-324
2008-09-24(万方平台首次上网日期,不代表论文的发表时间)