Pulverized coal preparation system

The utility model discloses a pulverized coal preparation system, which comprises a pulverizing mill and a pulverized coal separation mechanism for separating the grinding materials in the pulverizing mill; wherein the upper end of the pulverized coal separation mechanism is connected with a draft fan mechanism by a dust removing device. The pulverized coal preparation system is improved in that the pulverized coal separation mechanism comprises a coarse pulverized coal separator and a fine pulverized coal separator which is connected with the coarse pulverized coal separator; the coarse pulverized coal separator is connected with the pulverizing mill; the lower end of the fine pulverized coal separator is connected with a vibration feeder; the upper end of the fine pulverized coal separator is connected with the dust remover; the top of the dust remover is connected with the draft fan; the lower end of the fine pulverized coal separator is connected with the vibration feeder which transports the fine pulverized coal to a fine pulverized coal bin; and the lower part of the fine pulverized coal bin is connected with a single bin pump used for weighing and storing the fine pulverized coal. The pulverized coal preparation system adopts secondary separation for the pulverized coal, so that the production efficiency is significantly improved, and the dust content in exhaust emission is obviously reduced.