Method for purifying granular slag steel
A purification method and technology for slag steel, applied in the field of purification, can solve the problems of large particle size difference of slag steel, large floor space, increased energy consumption, etc., and achieve the effect of no dust flying, small floor space and compact structure
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] see figure 1 , a method for purifying granular steel slag, which comprises the large granular steel slag with a particle size of 30-60 mm and TFe of 30-50% and large granular steel slag with a particle size of > 60 mm and TFe > 50% after weathering and thermal braising. Use belt conveyors, plate conveyors and other conveying equipment to send them to the grinding head bin of the semi-autogenous mill and the grinding head bin of the autogenous mill respectively; the large-grained slag steel with a particle size > 60mm and TFe > 50% is passed through a bar screen, vibrating The feeder and transportation equipment are evenly and stably fed into the autogenous mill for continuous grinding. During the grinding process, the coarse particles collide and rub against each other, and the non-magnetic slag and small-grain steel attached to the surface are s...
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