Optimal Control for Combustion System of Middle and Small Pulverized Coal Boiler

In view of problems of uneven powder supply, slagging, inadequate burning and unstable negative pressure existed in current combustion system of pulverized coal boiler, the paper proposed a design scheme of DCS of combustion system of pulverized coal boiler by taking a 20 t heat-conduction boiler as control object. It introduced design of hardware and software of the system in details. The test result showed that the heat-conduction boiler runs stably and each technical index accords with design requirements, which realizes optimal control for combustion system of pulverized coal boiler.