Emergency blowout control method for large slab heating furnace
A technology of slab heating and control method, applied in heat treatment furnaces, furnaces, manufacturing tools, etc., can solve the problems of interruption of instrument gas source, abnormal vaporization cooling system, high or low, etc., to ensure antegrade and output, The effect of reducing the number and time of furnace shutdown and improving the utilization factor
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[0020] The present invention aims at the main defects of the emergency shutdown technology of the heating furnace in the original design, utilizes the PLC control program and functions of the original main control computer, and re-optimizes the setting of the automatic shutdown while rationally selecting the automatic shutdown conditions and process parameter values. The interlocking equipment of the furnace shutdown and the action sequence between the equipment, and the control mode of the gas control valve are changed at the same time, and the sound alarm of the low-pressure shutdown alarm signal of the gas, air and instrument gas source is added in the automatic shutdown program, and the alarm screen pops up. The combination of control and manual operation realizes the automatic alarm and control of the emergency shutdown of the slab heating furnace.
[0021] Its specific process parameters and control methods are:
[0022] The shutdown condition in the original gas system ...
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