The invention provides a
coal pulverizing
system applied to rapid load response of a peak shaving unit and a control method thereof.The
system comprises a boiler, a first
coal mill, a second
coal mill, a first pulverized
coal pipeline, a second pulverized
coal pipeline and an air feeder, and the coal outlet end of the first coal mill is connected with one end of the first pulverized
coal pipeline; the other end of the first pulverized coal pipeline is communicated with a boiler
hearth through a first
combustor, the coal outlet end of the second coal mill is connected with one end of a second pulverized coal pipeline, the other end of the second pulverized coal pipeline is communicated with the boiler
hearth through a second
combustor, a communicating
pipe is connected between the two pulverized coal pipelines, and a pipeline valve is arranged on the communicating
pipe. The air outlet end of the air feeder is connected with a primary air pipeline and a secondary air pipeline, the end, away from the air feeder, of the primary air pipeline is connected with the two coal mills, and the end, away from the air feeder, of the secondary air pipeline is connected with the two combustors. The
inertia of a high-capacity unit when a traditional direct-fired pulverizing
system is adopted can be reduced, the
delay time is short, and the load response rate is increased.