Regelung einer Pochschlamm-Konditionierung in der Mineralflotation mit einem on-line Digitalrechner l-IpnMex~emte 3BM ~rtz ynpaBsteHvia qbstoTaurIe~ B peasn,HOM MacmTa6e BpeMenI, I R. P. KING]"
Difficult automatic control problems can be solved using modern stochastic estimation techniques with an on-line digital computer as illustrated by producing an accurately controlled slurry for a pilot mineral flotation plant.
Summary--A computer control strategy for an operating metallurgical process is described in this paper. A real process is modelled by a set of stochastic differential equations with state-dependent noise, and a practical nonlinear filter is developed for the estimation of the model parameters and the state variables. A separation principle is invoked and a sub-optimal control strategy is implemented.
Operating experience has shown that the estimation and control algorithms are effective.
NOMENCLATURE
A2 cross-sectional area of tank 2 a~ volumetric transfer rate from tank 2 to tank 1 a2 ratio: mass flowrate of solids/speed of belt a 3 average recycle rate F feedrate of slurry to the plant F, random water recycle rate h Β° set point for level in tank 2 Kktr, coefficients in the polynomial expansion kp proportional gain for tank-level controller L~ generalized nth order Laguerre polynomial *