DEVICE FOR AUTOMATIC CONTROL AND DISTRIBUTION OF LIME MILK STREAM-FLOWS FROM A COMMON COLLECTOR AMONG IN PARALLEL OPERATING APPARATUSES

摘要

FIELD: chemical industry; production of soda ash. SUBSTANCE: the invention presents a device for an automatic control and distribution of lime milk stream-flows from a common collector among in parallel operating apparatuses. The invention may find application in a chemical industry in production of soda ash. The device for automatic control and distribution of lime milk stream-flows from a common collector among in parallel operating apparatuses has sensors of lime milk consumption linked with regulators of lime milk consumption, a regulator of values in the liquid fed from the mixer. At that an output of the sensor of lime milk general consumption is linked through the forming circuits with the flow regulators of lime milk and regulating units of the main and additional stream-flows. A forming circuit for the main stream flow has a tracking-recording unit and a unit of summation. A forming chain for an additional stream flow consists of a tracking-recording unit, a unit of summation and a unit of recording, output of which is connected to the second input of the unit of summation in the forming chain of the main stream flow; the second input of the regulator of consumption of lime milk in the main stream flow is connected to the unit of summation, inputs of which are connected to outputs of the sensor of the filtering liquid consumption and the regulator of values in the liquid fed from the mixer; the second input of the regulator of lime milk consumption in the additional stream flow is connected to the unit of summation, two inputs of which are connected to the outputs of the regulator of concentration of NH₃ in a steam-and-gas mixture fed from the evaporator and the forming chain of lime milk consumption in the main stream flow; inputs of the tracking-recording units and the switching device are connected to inputs of the control unit multivibrator, that controls process of formation of variables for the regulators of lime milk consumption in the main and additional stream-flows and the switching device closing a cut-off plate in the additional stream flow. EFFECT: The invention allows to simplify the system of automatic control and distribution of lime milk stream- flows. ! dwg