Process for preparing slag by pelletization of steel-making dust slime
A manufacturing process and dust sludge technology, applied in the field of comprehensive utilization of steel-making dust sludge, can solve the problems of difficult to guarantee thermal strength, large site maintenance, high cost of binder, reduce bursting phenomenon, ensure strength, and reduce cracking and the effect of the fault
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[0024] A batch of raw materials of steelmaking dust and mud after natural air drying is mixed with 5% quicklime and 0.7% binder to make a primary mixture; the primary mixture is mixed with the returned material for the second time, and 4 tons of secondary mixture are taken It is sent to the spiral mixer by belt conveyor for stirring for 5 minutes, and then sent to the wheel mill by belt conveyor for wheel milling. After 10 minutes of wheel milling, it is sent to the double-roller pelletizing machine for pelletizing by belt conveyor; when pelletizing, mix The moisture content of the material is controlled at 10%, and the pressure is controlled at 50KN; the green pellets produced are passed through a vibrating screen, and the green pellets on the screen are loaded into the hopper through the feeding system and sent to the shaft furnace for consolidation, and the crushed material under the screen is returned to the mixer as return material Reuse: After the raw pellets are put into...
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