METHOD OF AUTOMATIC CONTROL OF THE REACTOR OF SUSPENSION POLYMERIZATION Russian patent published in 2018 - IPC G05D27/00 G05D23/30 G05D24/02 G05B15/00 C08F2/18 

FIELD: control systems.

SUBSTANCE: present invention relates to the field of automation of operation of polymerization reactors, in particular to a method for controlling a slurry polymerization reactor by controlling the temperature in the reaction zone by changing the supply of the coolant to the reactor-polymerizer jacket and changing the agitator rotation speed. Control system for the suspension polymerization process consists of two control loops. First circuit provides the specified speed of rotation of the mixer N_SP reactor-polymerizer with the help of regulator 3 (R_N). Second circuit ensures the stabilization of the temperature of the reaction mass T inside the reactor-polymerizer by means of a regulator 8 (R_T). Method consists in that with a change in output signal U_N from the controller 3 (R_N), advance action S_K1 is produced into the temperature stabilization circuit of the reaction mass T in the reactor-polymerizer, and with a change in the temperature of the reaction mass, advance action S_K2 is produced into the speed control loop of the reactor-polymer mixer.

EFFECT: improvement of the quality of control of the technological object due to changes in the dynamic properties of the channels controlling the temperature of the reaction mass and stabilizing the rotation speed of the reactor-polymer mixer, depending on the state of the control object and, as a consequence, improving the quality of the product obtained.

1 cl, 1 dwg