SAND MAKING APPARATUS

[Problems to be solved] The present invention provides a sand making apparatus, a sand making method, and made sand that enable effective use of excess by-product powders generated in a crushing process. [Means for solving problems] The sand making apparatus includes at least: a crusher 10; a first...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHIMAZUTSU, KEN, HASHIMOTO, KATSUYOSHI, NAKAUE, KIYOTOSHI, NAGAHARA, YUICHI, KAYA, TAKATO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MILLING GRAIN OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS PREPARATORY TREATMENT OF GRAIN FOR MILLING SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATING SOLIDS FROM SOLIDS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING TRANSPORTING
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Beschreibung
Zusammenfassung:	[Problems to be solved] The present invention provides a sand making apparatus, a sand making method, and made sand that enable effective use of excess by-product powders generated in a crushing process. [Means for solving problems] The sand making apparatus includes at least: a crusher 10; a first sorter 30 configured to sort crushed materials into coarse particles X, fine particles Y, and powders Z through air sorting and screening sorting; and a dust collector 80 configured to suck and collect the powders Z, wherein a second sorter configured to sort the powders Z into coarse powders Z1 and fine powders Z2 through the negative pressure of the dust collector 80 is disposed between the first sorter 30 and the dust collector 80, and a mixture of the fine particles Y and the coarse powders Z1 are used as made sand, thereby properties of concrete can be improved and excess by-product powders can be reduced.