HIGH ALUMINA BRICK FOR ROTARY KILN AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain a high alumina-based brick for a rotary kiln high in wear resistance and improved in alkali resistance by adding specific amounts of CaO and MgO to a high alumina-based brick consisting essentially of Al2 O3 -SiO2 . SOLUTION: A refractory raw material comprising a hig...

Full description

Saved in:
Bibliographic Details
Main Authors YAMADA TOKUICHI, IMAI KAZUNARI
Format Patent
LanguageEnglish
Published 22.12.1997
Edition6
Subjects
ARTIFICIAL STONE
BLASTING
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE
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
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To obtain a high alumina-based brick for a rotary kiln high in wear resistance and improved in alkali resistance by adding specific amounts of CaO and MgO to a high alumina-based brick consisting essentially of Al2 O3 -SiO2 . SOLUTION: A refractory raw material comprising a high alumina-based brick consisting essentially of Al2 O3 -SiO2 is blended with alkaline earth metal oxides comprising mainly CaO and/or MgO having <=90μm. The blend is kneaded, molded and sintered to give the objective high alumina-based brick containing 0.5-5wt.% of Mg and/or CaO in the texture. The composition has the weight ratio of Al2 O3 /SiO2 of preferably 8/2 to 4.5/5.5. Consequently, the structural spalling resistance of the high-alumina brick to an alkali salt can be improved.
Bibliography:Application Number: JP19960163821