METHOD FOR PRODUCTION OF CEMENT RAW MIX Russian patent published in 2009 - IPC C04B7/42 

FIELD: construction.

SUBSTANCE: invention is related to industry of construction materials, to production of cement clinker with application of ordinary natural raw materials. In method for production of cement raw mix in the form of slag containing carbonate, clay components, iron-containing additive and water, including simultaneous crushing of slag into two flows with further mixing of crushing products, as iron-containing additive they use slag-briquette of Novolipetsk metallurgy plant JSC, in flow I they crush mentioned components, at the following ratio (per dry substance), wt %: clay component 42.56-64.38, carbonate component 29.27-53.21, iron-containing additive 4.23-6.35 and ratio of clay component to carbonate component 0.8÷2.2, in flow II - crushing of carbonate component with water and additionally with fluidity-controlling additive, at the following ratio of components (per dry substance), wt %: carbonate component 100, mentioned controlling additive 0.04 - 0.2 over 100%, and mixing is done at the following ratio, wt %: crushing product I 31.5-47.25, crushing product II 52.75-68.5.

EFFECT: increased reaction ability of raw mix.

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