Thesis
Technoeconomic analysis of plant grinding operations
Public Deposited- Creator
- Abstract
- This study presents methodology for technical and economic performance analysis of conventional grinding circuits supported by two industrial cases. A review of the strengths and weaknesses of Bond work index and population balance modelling approaches to plant circuit analysis discloses the need to refine work index determinations, and to establish a system of more meaningful ball mill circuit performance parameters. The statistical reliability of carefully determined rod mill work index efficiency ratings is presented. Technical and economic performance improvements through rod mill speed and feed water rate adjustments are presented. Parameters which separately characterize overall ball mill circuit classification and breakage efficiency are presented. Their relationships with circuit design and operating variables and overall circuit efficiency and economy are discussed. The particle size dependence of flotation is used to estimate the value of the grinding circuit product, and thus to integrate grinding into the overall economics of a flotation concentrator.
English
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- 2022-03-18
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NN64093.pdf | 2019-10-08 | Public | Download |