$Process for purifying granular material e.g. oil-contaminated sand comprises adjusting the solids content in the attritor by removing coarse material and by controlled recycling of this coarse fraction for addition to the attrition vessel$

Process for purifying granular material e.g. oil-contaminated sand comprises adjusting the solids content in the attritor by removing coarse material and by controlled recycling of this coarse fraction for addition to the attrition vessel

Process for purifying granular material comprises adjusting the solids content in the attritor to more than 40 vol.% by removing coarse material of size more than 0.5 mm and controlled recycling of this coarse fraction for addition to the attrition vessel. Die Erfindung betrifft ein Verfahren zur Re...

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Bibliographische Detailangaben
Hauptverfasser:	KANIUT, PETER, NEESE, THOMAS, TIEFEL, HILMAR, SCHRICKER, BERND
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	DISPOSAL OF SOLID WASTE MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS PERFORMING OPERATIONS RECLAMATION OF CONTAMINATED SOIL RECLAMATION OF CONTAMINED SOIL SOIL SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING
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Beschreibung
Zusammenfassung:	Process for purifying granular material comprises adjusting the solids content in the attritor to more than 40 vol.% by removing coarse material of size more than 0.5 mm and controlled recycling of this coarse fraction for addition to the attrition vessel. Die Erfindung betrifft ein Verfahren zur Reinigung verunreinigter körniger Stoffe durch Attrition, d. h. Rühren in einer Wasseraufschlämmung, wobei im Attritor durch Abtrennung von Grobgut > 0,5 mm aus dem attritierten Partikelkollektiv und geregelte Rückführung dieser Grobfraktion zur Aufgabe des Attritionsgefäßes im Attritor ein Feststoffgehalt > 40 Vol.-% eingestellt wird.