commonly used control strategies are analyzed and discussed. keywords: ball mills grinding circuit process control. i. introduction grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical mechanical and chemical characteristics.
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the ball mill system (bms) is a strongly coupled mimo systemin order to implement a long-term automatic operation of the bms effectivelyand improve the automation level and efficiency the paper present the overall design of the systemthe control system is composed of siemens simatic s7-400plcs7-200plcthe profibus dp protocol and mpi protocol are both employed to setup a dcs networking
the theory and the design idea of the control method are discussed the structure of control system is given and the decoupling characteristics of the control method is analyzed. in this paper the characteristics of ball mill pulverizing control system are analyzed and the control method is applied and simulated to the ball mill control.
mill control: ball mill control example process description the copper concentrator in pinto valley arizona processes a 0.4% grade copper ore from a nearby open pit mine. the unit operations consisting of crushing grinding and flotation process about 65000 tons of ore per day in six overflow ball mills.
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modeling and control of ball mill system considering coal . based on the ekf a new extended state space predictive control method is used to control the established model. the results demonstrate the accuracy of the model and the validity of the control method. 2. simplified nonlinear model of duplex inlet and outlet ball mill 2.1.
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