Patent RU-2222614-C1 (RU)
Title: Sintering process automatic control unit
Inventor: ZOBNIN B B
IPC: C22B1/16
Filed: 2002-07-17
Granted: 2004-01-27
Abstract: FIELD: ferrous metallurgy. SUBSTANCE: proposed automatic control unit includes sintering machine, sinter case granulation composition analyzer, granulation composition measurement delay unit, return sinter case flow rate sensor, concentrate moisture content analyzer, charge weight sensor, sensor of power required for palletizing, charge palletizer, disturbing action input calculation unit, unit for calculation of difference of predicted and actual magnitudes of output variables, unit for calculation of optimal magnitudes of control actions and model parameter identification unit. First and second outputs of sinter case composition analyzer are connected with first and second inputs of delay unit and with fourth input of optimal magnitude calculation unit. First and second outputs of delay unit are connected with second and third inputs of input calculation unit. Output of return sinter case flow rate sensor is connected with fourth input of input calculation unit and with first input of optimal magnitude calculation unit. Output of moisture content analyzer is connected with fifth input of input calculation unit. Output of weight sensor is connected with sixth input of input calculation unit and with second input of optimal magnitude calculation unit. Power sensor output is connected with seventh input of input calculation unit. First, second and third outputs of input calculation unit are connected with second, third and fourth inputs of difference calculation unit. First, second and third outputs of unit of calculation of difference between predicted and actual magnitudes of output variables are connected with sixth, seventh and eighth inputs of optimal magnitude calculation unit whose first, second and third outputs are connected with first, second and third inputs of model parameter identification unit whose output is connected with first input of input calculation unit and with first input of difference calculation unit whose fourth output is connected with first input of pelletizer and with fifth input of difference calculation unit. Fifth output of optimal magnitude calculation unit is connected with second input of pelletizer and with sixth input of difference calculation unit. Sixth output of optimal magnitude calculation unit is connected with third input of sintering machine and with seventh input of difference calculation unit. First and second outputs of pelletizer are connected with first and second inputs of sintering machine and with weight sensor input. Third output of charge pelletizer is connected with power sensor input and fourth and fifth outputs are connected with ninth and tenth inputs of difference calculation unit. Fifth input of sintering machine is connected with fifth input of optimal magnitude calculation unit, second output is connected with input of composition analyzer, third output is connected with input of return sinter cake flow rate sensor and fourth output is connected with eighth input of difference calculation unit. EFFECT: improved quality of control of sintering process. 2 dwg