Frozen-breaking method for steel slag
A freezing and crushing and steel slag technology, applied in grain processing and other directions, can solve the problems of unrealized comprehensive utilization of steel slag, poor crushing effect, and high crushing difficulty, and achieve the effect of improving comprehensive utilization value, improving crushing efficiency, and reducing crushing difficulty.
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[0028] The process of the method for freezing and crushing steel slag in this embodiment is as follows figure 1 So, include the following steps:
[0029] 1) The hot and stuffy steel slag is discharged by the excavator / crane, loaded into the dump truck, transported to the raw material transfer station, and enters the vibrating feed bin through the loading platform.
[0030] 2) Vibration feeding to the silo, the feeding diameter range is 0-500mm; the steel slag raw material transfer station above 500mm sets up a separate environmentally friendly dust removal pretreatment zone, which is cut to less than 500mm by oxygen and then processed online.
[0031] 3) The steel slag is sorted for the first time using a pre-selected drum screen to obtain two particle sizes of 40~500mm and 0~40mm.
[0032] 4) Among them: 40~500mm steel slag is subjected to the first ultra-fast freezing, the temperature of the first ultra-fast freezing is -50℃~-200℃, and the time is 10~30min. The fro...
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