ROTERANDE UNGSANLAEGGNING FOER FRAMSTAELLNING AV EN EXPANDERAD LERPRODUKT

A bloated granular clay product is manufactured by heating clay in a first step from atmospheric temperature to 300 DEG -600 DEG C. during a long period of time whereafter the clay now forming granules in a second step is heated to 1,150 DEG -1,175 DEG C. in a relatively short period of time i.e., a...

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Bibliographische Detailangaben
1. Verfasser:	KAMSTRUP-LARSEN HARRY
Format:	Patent
Sprache:	fin
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY OPEN SINTERING OR LIKE APPARATUS OVENS REFRACTORIES RETORTS SLAG TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	A bloated granular clay product is manufactured by heating clay in a first step from atmospheric temperature to 300 DEG -600 DEG C. during a long period of time whereafter the clay now forming granules in a second step is heated to 1,150 DEG -1,175 DEG C. in a relatively short period of time i.e., about 15 - 30 minutes. The heating is effected in a rotary kiln having a drying section and a burning section. The first heating step is provided in the drying section and the second heating step takes place in a transition zone between the two sections. To ensure the quick heating in said second step there is provided heat transfer means in the transition zone.