Intelligent control shutdown method for direct-fired pulverizing system

The invention discloses an intelligent control shutdown method for a direct-fired pulverizing system. The method mainly comprises the steps of determination of intelligent shutdown conditions of the direct-fired pulverizing system, automatic control of intelligent shutdown of the direct-fired pulverizing system and judgment of intelligent shutdown completion conditions of the direct-fired pulverizing system. According to the method, intelligent shutdown key points of the direct-fired coal pulverizing system are quantified and set in logic according to a reasonable step sequence, so that shutdown of the direct-fired coal pulverizing system has practical operability, meanwhile, a reasonable coal reduction rate and air volume and temperature regulation and control module is arranged, and the system has high practicability. The impact on the combustion system and the main steam system in the shutdown process is reduced, it is guaranteed that shutdown and switching of the coal pulverizing system are stable and smo