A Useful Technique for Metallurgical Mass Balances. Applications in Grinding,

摘要

The simple yet powerful steady state data analysis algorithm and software described herein have proven most useful in industrial grinding circuit studies. In general,the process configuration can include as many as 50process streams connecting up to 30pieces of equipment. Steady state plant data (e.g.,solids,water,slurry flow rates;percent solids;sieve analyses) are collected where feasible;input;analyzed for consistency;and,if the process is overdefined,adjusted in a least squares sense to achieve overall mass balance as well as mass balance within each size fraction. The combined sampling and analysis errors are assumed random with a weighting variance based upon whether the specific data point is believed to be fair,good or excellent. Extension of the technique to overall plant material balances is straightforward.