Shul'gin S. Automation of control ash content is in froth flotation of coal

Object of research: process control system for the flotation. Goal - improving the accuracy of management and quality of end products of enrichment in froth flotation of coal by developing an automatic control system ash concentrate. Methods based on the automatic control theory, probability theory and mathematical statistics. The novelty lies in the use of combined pulsed process control flotation of coal slurry, providing regulation of the ash content of concentrate in the transient parameters of the object management. A method for automatic control of flotation process of coal slurry, which provides the required performance ash concentrate. To determine the compensatory effects at the entrance to the flotation process for the first time we used a model of kinetics, based on an improved analytical expression for the rate constant of flotation, taking into account the distribution of the particles floated in the velocity and residence time in flotation. Practical results are introduced at NPP "Arikon" (Lugansk) and Nipkow Iskra led to reduction in specific consumption of reagents to 12% increase in the flotation concentrate output up 1.1%, reducing downtime due to equipment failure and 30%. Scope - coal washing.