The object of study - technological processes of condensation and clarification of the pulp in a radial thickener. The subject of study - an automated process control system of sludge thickening and clarification in the radial thickener. Research methods. In the studies used the methods of control theory, methods of synthesis of optimal linear discrete automatic control systems with incomplete information, probability theory and mathematical statistics. In assessing the impact of disturbances and their characteristics used methods of the theory of random functions. In designing the workstation operator used modern methods of SCADA-technology. Scientific novelty of the results Refined mathematical model of sludge thickening and clarifying the object of automatic control, which is in contrast to the existing account of changes of the solid phase in the pulp thickener in height and its characteristics that influence the model parameters, as well as the analytical dependence of the sludge from its flow, density discharge of flocculant consumption and the level of sludge on the load on the solid phase, thereby increasing its accuracy. For the first time a method for automatic control of a radial thickener, in which the proposed stabilization of sludge change the initial load, put the correction given density underflow density is proportional to discharge, as well as compensation for changes in the load on the input process is proportional to flow rate and flocculant dosing deviation of the density of plum assignments. This reduces variance and increases the accuracy of stabilization of a given density underflow and discharge, reduces the consumption of flocculant and, consequently, improves the quality of the enrichment processes. For the first time synthesized digital adaptive automated control of sludge thickening and clarifying the principle of equivalence and stochastic reconstruction of the dynamic parameters of the object according to the observations, thereby providing a specified quality control. The practical significance of the results The proposed method of automatic process control of sludge thickening and clarifying improves steering precision and, consequently, the overall efficiency of enrichment processes and can be used to automate other existing and future devices of this use. The method of parameter identification of the object in the normal functioning of the system allows for adaptation of time-dependent parameters for the object and the stochastic perturbation, which increases the accuracy to maintain the density of sludge and drain. ACS sludge thickening process of clarification of waste water and flotation on the basis of SCADA-technology allows you to monitor and centralized remote control of processes with a workstation operator. The results of scientific and practical research thesis, algorithms and software automation systems are protected by a patent for a way to manage the process of condensation, taken in the use of research design institutes "Iskra", LLC Research and Production Enterprise "Arikon" as well as in the learning process department "Systems Engineering" East-Ukrainian National University named after Vladimir Dal in the lecture course "Automatic Control Theory," "Best of", "Adaptive Control Systems" and "SCADA-system management" in the direction of 6.050201 "Systems Engineering", which is confirmed by the relevant Acts of implementing the results of the thesis. The expected economic effect of implementing the system at the expense of thickener to increase the yield of concentrate at 0.1%, reduce the amount of flocculant at 32% and water consumption by 10% over 5 years is 471.4 thousand UAH with a payback period of 4 months. Industry use - coal preparation
