FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Sand blend is divided into several portions. First portion is fed into mixer. Actual compaction of mix portion is defined from force measured at mixing member. Amount of water to be added to said portion is defined from the difference between actual and preset compaction. Measurements of force at mixing member and mix compaction are reiterated. First portion prepared, amounts of water, new sand blend and/or slime are added to the next sand blend proceeding from measured difference between actual compaction and preset compaction of sand blend.
EFFECT: simple adjustment of compaction of heap sand.
13 cl, 5 dwg
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