Coal gasification ash residue reselection system and reselection process

The invention relates to the technical field of comprehensive utilization of coal gasification ash residues, in particular to a coal gasification ash residue reselection system and reselection process. The reselection system is composed of a stirrer, a stirring barrel, a slurry pump, a hydrocyclone, a fluidized bed sorting machine, a distributing device and a vibrating fine screen, wherein the stirrer is arranged in the stirring barrel, a water source inlet and a raw material inlet are formed in the stirring barrel, a discharge port of the stirring barrel communicates with a feed port of the slurry pump through a conveying pipe, a discharge port of the slurry pump communicates with a feed port of the hydrocyclone through a conveying pipe, an underflow port of the hydrocyclone communicateswith a feed port of the fluidized bed sorting machine through a conveying pipe, an overflow outlet of the fluidized bed sorting machine communicates with a feeding port of the distributing device through a conveying pipe, and