METHOD FOR RECOVERY OF LARGE-PIECE OILED SCALE
FIELD: ferrous metallurgy, namely rolling processes and blast furnace production processes, possibly recovery of oiled rolling scale. ^ SUBSTANCE: method comprises steps of directing large -piece oiled scale into mill together with water while providing water content in oiled scale 60 - 70%; grindin...
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| creator | SAMSIKOV EVGENIJ ANATOL'EVICH KURUNOV IVAN FILIPPOVICH TIKHONOV DMITRIJ NIKOLAEVICH EROKHIN SERGEJ FEDOROVICH |
| description | FIELD: ferrous metallurgy, namely rolling processes and blast furnace production processes, possibly recovery of oiled rolling scale. ^ SUBSTANCE: method comprises steps of directing large -piece oiled scale into mill together with water while providing water content in oiled scale 60 - 70%; grinding scale till fraction size no more than 50 -100 micrometers; concentrating ground and water diluted scale in filtering centrifuge till humidity degree 13 -15%; directing it to mixer together with liquid hydrocarbons whose humidity is controlled and with water. Quantity of scale, liquid hydrocarbons and water fed to mixer is controlled at sustaining stable humidity degree of prepared mixture and predetermined scale content. Relation of scale, liquid hydrocarbons and water is kept in range (35 - 55) : (35 - 55) : (13 - 30) respectively. Prepared suspension is stabilized and fed under pressure to blast furnace for blasting into air tuyeres as liquid fuel. ^ EFFECT: simplified process and lowered cost of scale recovery. ^ 3 cl, 1 ex, 1 tbl |
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| subjects | CHEMISTRY MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON |
| title | METHOD FOR RECOVERY OF LARGE-PIECE OILED SCALE |
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