RECOVERY METHOD OF CEMENT CONTENT

PROBLEM TO BE SOLVED: To contrive to protect an environment by recycling a separate recovered material in a cement compounding process by a method wherein a discharged sludge containing cement is selectively separated into the recovering material containing plenty of cement content and a portion oth...

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Bibliographische Detailangaben
Hauptverfasser:	KOJO MAKOTO, KURITA ICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HYDRAULIC ENGINEERING LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER REFRACTORIES SLAG SOIL SHIFTING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF NATURAL STONE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE UNDERGROUND OR UNDERWATER STRUCTURES WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To contrive to protect an environment by recycling a separate recovered material in a cement compounding process by a method wherein a discharged sludge containing cement is selectively separated into the recovering material containing plenty of cement content and a portion other than the recovering material. SOLUTION: A particle portion, which substantially contains a plenty of a cement content in a discharge sludge or contains 90% or more of particles having the range of the particle diameter of 10-100μm, is selectively separated and recovered by utilizing centrifugal force with a cyclone so as to recyclingly use the recovered material in a cement compounding process. In addition, a portion containing a plenty of water other than the recovered material is coagulated and dewatered so as to solid-liquid separate into a body and a separated water in order to recycle the separated water. In order to selectively classify a particulate portion mainly containing particles having the specified range of the particle diameter of 10-100μm from the discharged sludge, a liquid cyclone is the most effective from the view point of classifying accuracy, disposal capacity, easiness of maintenance control and economical efficiency.