ROTERANDE UGNSANLAEGGNING 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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Bibliographic Details
Main Author KAMSTRUP-LARSEN HARRY
Format Patent
LanguageFinnish
Published 31.10.1979
Edition2
Subjects
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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Summary: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.
Bibliography:Application Number: FI19700002166