The invention discloses a method for predrying, powdering and conveying feed
coal and a special
processing system thereof. The method comprises the following steps that 1, coom in a predrying feeding bin is conveyed into a fluid
bed drying oven to be predried, and the obtained predried coom enters a powdering feeding
coal bunker; 2, the predried coom is fed into a
coal pulverizer from the powdering feeding coal
bunker to be pulverized to obtain pulverized coal to be fed into a pulverized coal
bunker; 3, the pulverized coal is conveyed into a high-pressure pulverized coal tank through a
solid pulverized coal conveying pump. The special
processing system comprises the feeding bin, the fluid
bed drying furnace, the powdering feeding coal bunker, the coal
pulverizer, the pulverized coal bunker, the
solid pulverized coal conveying pump and the high-pressure pulverized coal tank which are connected in sequence. The feed coal
drying effect is good, and energy is saved; the coal pulverizing and drying operation is
safer, the pulverized coal conveying
energy consumption is small, and efficiency is high.