Blast furnace dry slag crushing method and blast furnace slag treatment method
A blast furnace dry slag and crushing method technology, applied in the field of metallurgy, can solve the problems of unstable product quality, can not be used as raw materials for sand making, slag activity and texture can not meet the requirements of national standards, etc., to achieve the effect of stable quality
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Embodiment 1
[0072] This embodiment provides a blast furnace dry slag crushing method, which includes the following steps:
[0073] Firstly, lay blast furnace dry slag gravel in the dry slag pool with a laying thickness of 0.45m; the particle size of the blast furnace dry slag gravel laid in the dry slag pool is about 30mm, and make the surface of the blast furnace dry slag gravel lay flat .
[0074] Secondly, the liquid blast furnace slag in the first blast furnace is put into the dry slag pool through the slag outlet, and a liquid slag layer is formed on the surface of the dry slag gravel; after the liquid slag layer is naturally cooled for 12 minutes, the slag surface is water-cooled for the first time Cool down, and then cool naturally for 35 minutes after spraying water to evaporate the accumulated water on the surface of the slag layer. Among them, the water spraying time of the first water cooling cooling process is 18 minutes, and the water spraying volume is 50m 3 .
[0075]The...
Embodiment 2
[0078] This embodiment provides a blast furnace dry slag crushing method, which includes the following steps:
[0079] Firstly, lay blast furnace dry slag gravel in the dry slag pool with a laying thickness of 0.55m; the particle size of the blast furnace dry slag gravel laid in the dry slag pool is about 32mm, and make the surface of the blast furnace dry slag gravel lay flat .
[0080] Secondly, the liquid blast furnace slag in the first blast furnace is put into the dry slag pool through the slag outlet, and a liquid slag layer is formed on the surface of the dry slag gravel; after the liquid slag layer is naturally cooled for 17 minutes, the slag surface is water-cooled for the first time Cool down, and then cool naturally for 45 minutes after spraying water to evaporate the accumulated water on the surface of the slag layer. Among them, the water spraying time of the first water cooling cooling process is 22 minutes, and the water spraying volume is 60m 3 .
[0081] Th...
Embodiment 3
[0084] This embodiment provides a blast furnace dry slag crushing method, which includes the following steps:
[0085] Firstly, lay blast furnace dry slag gravel in the dry slag pool with a laying thickness of 0.55m; the particle size of the blast furnace dry slag gravel laid in the dry slag pool is about 32mm, and make the surface of the blast furnace dry slag gravel lay flat .
[0086] Secondly, the liquid blast furnace slag in the first blast furnace is put into the dry slag pool through the slag outlet, and a liquid slag layer is formed on the surface of the dry slag gravel; after the liquid slag layer is naturally cooled for 17 minutes, the slag surface is water-cooled for the first time Cool down, and then cool naturally for 45 minutes after spraying water to evaporate the accumulated water on the surface of the slag layer. Among them, the water spraying time of the first water-cooling cooling process is 22 minutes, and the water spraying volume is 53m 3 .
[0087] Th...
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Abstract
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