New dry process cement production line control system

Abstract

The control system of the new dry process cement production line includes a raw material mill control unit, a firing control unit, a grate speed control unit and a coal mill control unit. The raw material mill control unit is composed of the raw material cold and hot air valve control module and the raw material mill feeding control module; the firing control unit is composed of the high temperature fan control module, the kiln tailing coal control module, and the kiln head fan control module; The section grate speed control module; the coal mill control unit is composed of the coal mill cold and hot air valve control module and the mill coal feed control module. The raw material cold and hot air valve control module and the coal mill cold and hot air valve control module adopt the multi-input and multi-output control method, which effectively solves the problem of the coupling of the raw material mill and coal mill outlet temperature and inlet pressure, solves the hysteresis and hysteresis of the valve, and improves Control accuracy; it can track and predict the change trend and status of raw material components, and improve the control adaptability and stability of material changes.

Description

technical field [0001] The invention relates to a cement production line control system, in particular to a new dry process cement production line control system. Background technique [0002] The traditional cement clinker production line widely adopts DCS / PLC control system. This control system is limited to the centralized monitoring of the production process and has not brought into full play the potential of computer automatic control. The operation is still maintained in a manual state. Rely on people's experience and ability. The main problems are: it is difficult to unify and standardize the operation methods, the operation results of each operator are uneven, and the operation level of each shift fluctuates greatly, which constantly plagues the production and operation management personnel and restricts product quality and energy consumption. Improvement and enhancement of economic indicators. Contents of the invention [0003] The control signal of the present ...

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Problems solved by technology

[0002] The traditional cement clinker production line widely adopts DCS / PLC control system. This control system is limited to the centralized monitoring of the production process and has not brought into full play the potential of computer automatic control. The operation is still maintained in a manual state. Rely on people's experience and ability

The main problems are: it is difficult to unify and standardize the operation methods, the operation results of each operator are uneven, and the operation level of each shift fluctuates greatly, which constantly plagues the production and operation management personnel and restricts product quality and energy consumption. Improvement and enhancement of economic indicators such as

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