The invention relates to the technical field of comprehensive utilization of
blast furnace dust, in particular to a
blast furnace dust high-efficient separation and purification
system and a purification method. The
blast furnace dust high-efficient separation and purification
system is characterized in that the
system is composed of a pulp making mechanism, a primary pulp homogenizing and conveying mechanism, a
zinc extracting mechanism, a secondary pulp homogenizing and conveying mechanism, an iron-carbon extracting carbon mechanism and a conveying
pipe, wherein the pulp making mechanism iscomposed of a
ball mill or a stirring
barrel, the primary homogenizing and conveying mechanism is composed of a homogenizing box and a primary conveying pump, the
zinc extracting mechanism is composedof a
hydrocyclone and a
zinc guide
pipe, the
hydrocyclone is provided with a feeding port, an overflow port and a bottom flow port, the secondary homogenizing and conveying mechanism is composed of abottom flow box and a secondary conveying pump, a feeding port and a discharging port are formed in the bottom flow box, the iron-carbon extracting mechanism is composed of a spiral separation
machine, a iron guide
pipe and a carbon guide pipe, and the spiral separation
machine is provided with a feeding port, an iron outlet and a carbon outlet. The blast furnace dust high-efficient separation and purification system and the purification method have the advantages of being simple in structure, convenient to use,
pollution-free, low in cost, and good in separation and purification effects.