SYSTEM FOR CONTROLLING THE PROCESS OF ORE GRINDING IN DRUM MILL Russian patent published in 2017 - IPC B02C17/00 B02C25/00 

FIELD: mining.

SUBSTANCE: control system comprises information sensors disposed on the structural elements of the drum mill and adjacent process mechanisms connected to a control unit configured to generate control commands to the ore charging and water feeding devices. The control unit has a signal processing unit and an optimizer. The signal processing unit has a normalization and levelling module and a time period averaging module. The optimizer has a unit for changes calculation, differential and integral changes estimations, a changes processing unit for each of the factors influencing the value of the controlled action, a optimization module for controlling issues with respect to maximization of ore processing taking into account its physical and mechanical properties and an issues processing module to prevent overload of processing equipment. The optimization module for controlling issues with respect to maximization of ore processing taking into account its physical and mechanical properties and an issues processing module to prevent overload of processing equipment are directly/inversely interconnected. Their outputs are connected to the first inputs of the first PID controller, the second input of which is connected to the weight sensor of the ore in the mill, and the output is connected to the feed conveyor drive, the second PID controller, the second input of which is connected to the water flow sensor in the mill, and the output - with the mechanism for regulating the flow of water into the mill and the third PID regulator, the second input of which is connected to a water flow sensor in a spiral classifier, and the output - with a mechanism for regulating the flow of water into a spiral classifier.

EFFECT: high level of automatization of ore grinding process, optimization of controlling issues with respect to maximization of ore processing taking into account its physical and mechanical properties that improves performance, reduces the energy to output ratio, prevents overload and idle time of the equipment.

4 cl, 6 dwg