DUST SUPPRESSOR FOR CALCIUM-BASED POWDER, CALCIUM-BASED POWDER, METHOD FOR MANUFACTURING THE CALCIUM-BASED POWDER, AND METHOD FOR SUPPRESSING CALCIUM-BASED POWDER

PROBLEM TO BE SOLVED: To provide a method for continuously suppressing dust generated in a case dealing with a calcium-based powder which elutes a calcium ion when contacting with water, a dust suppressor used in a case performing the method, a calcium-based powder in which a dust suppression treatm...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAHASHI SHUICHI, FUTADO NOBUKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for continuously suppressing dust generated in a case dealing with a calcium-based powder which elutes a calcium ion when contacting with water, a dust suppressor used in a case performing the method, a calcium-based powder in which a dust suppression treatment is carried out using the dust suppressor, and a method for manufacturing the calcium-based powder.SOLUTION: The calcium-based powder elutes a calcium ion when contacting with water. The calcium-based powder includes a water retention gel formed by alginic acid from the dust suppressor which elutes the alginic acid when contacting with water and a calcium ion from the calcium-based powder under the presence of a chelate compound which forms a chelate with a hydration retarder and/or a calcium ion.