The invention relates to a
control system for pulverized
coal making of pulverized
coal injection, which is mainly composed of a
Programmable Logic Controller (PLC)
control system and a
Human Machine Interface (HMI), wherein the
control system communicates with a raw
coal system and a coal injection
system through an
industrial Ethernet; the PLC control
system controls operation of equipment of a pulverized coal making system, controls technological parameters, such as, raw coal feeding quantity, gas flow, pressure, temperature, and the like, of the pulverized coal making system according to set values and a
signal of a field sensor, and monitors contents of
carbon monoxide and
oxygen in the pulverized coal making system; the HMI inputs and sets a set value of the coal feeding quantity, a set value of gas temperature, a set value of pressure of a mill, a set value of
pressure difference of the inlet and the outlet of the mill, a set value of the gas flow, and public and auxiliary set values through the
human machine interface, and also displays the whole progress of the pulverized coal making system on the interface. The control system disclosed by the invention controls the equipment of the whole pulverized coal making system to run harmonically, controls important parameters, such as, pressure, gas flow, temperature, and the like, of the pulverized coal making system, keeps the pulverized coal making system running steadily, and provides excellent pulverized coals for
bituminous coal injection of blast furnaces safely and efficiently.