The slag is subjected to water quenching treatment in a high temperature molten state, and then transported to the production or use unit for drying. Due to the combustion and slag formation in the furnace, its particle size generally ranges from 1mm to 50mm, which is similar to the size of gravel. The grinding time is about 45min, and the fineness is controlled between 7% ~ 10%, the ground coal-fired slag is used as concrete admixture, which has short setting time, small bleeding volume, large viscous resistance of pumping, and significantly improves the performance of concrete.
SMMVIK Machinery's MTW European mill is a product developed on the basis of absorbing grinding technology and concept, and has a number of independent innovation technologies. The machine adopts a number of new technologies, such as bevel gear integral transmission, internal thin oil lubrication system, arc-shaped air duct, etc. with high grinding efficiency and output increase of more than 20%, it is widely used in the field of concrete admixture preparation.
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