MANUFACTURING METHOD OF CEMENT
To provide a manufacturing method of cement which can reduce production costs and can control a quality of the cement appropriately.SOLUTION: A manufacturing method of cement includes: an anhydrous gypsum processing step of adding water to anhydrous gypsum and heating it to obtain a gypsum mixture c...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a manufacturing method of cement which can reduce production costs and can control a quality of the cement appropriately.SOLUTION: A manufacturing method of cement includes: an anhydrous gypsum processing step of adding water to anhydrous gypsum and heating it to obtain a gypsum mixture containing gypsum dihydrate and gypsum hemihydrate; a grinding step of grinding materials to pulverize containing cement clinker, flue-gas dihydrate gypsum and the gypsum mixture with a finishing mill to obtain cement; an analysis step of collecting samples from the cement, analyzing the samples using the XRD/Rietveld method, and evaluating on the basis of specified end-points; and a manufacturing condition regulating step of regulating cement manufacturing conditions on the basis of the results of evaluation.SELECTED DRAWING: None
【課題】製造にかかるコストを小さくしかつセメントの品質を適切にコントロールすることができるセメントの製造方法を提供する。【解決手段】無水石膏に水を加えかつ加熱して、二水石膏および半水石膏を含む石膏混合物を得る無水石膏処理工程と、セメントクリンカ、排脱二水石膏および石膏混合物を含む被粉砕原料を仕上げミルで粉砕して、セメントを得る粉砕工程と、セメントからサンプルを採取し、ＸＲＤ／リートベルト法を用いてサンプルを分析し、特定の評価項目について評価を行う分析工程と、評価の結果に基づいて、セメント製造条件を調整する製造条件調整工程を含むセメントの製造方法。【選択図】なし |
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