CERAMIC FILTER AND METHOD FOR USING SAME

Ceramic filter for filtering molten cast iron is made from a hgih m.pt. ceramic material with an open-celled foam structure and variable bulk density in different parts of the filter. Ratio of filter surface to filter vol. is 0.0003-9 m2/Cm3 and specific filter resistance is 0.1-0.9 bar-Cm at a flui...

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Bibliographic Details
Main Authors TRAPP GUNTER H, TRINKL GERD, HOFMANN FRANZ, RIETZSCHER ROLF, KAETTLITZ WOLFGANG, JUERGEN OTTO
Format Patent
LanguageEnglish
Korean
Published 16.02.1990
Edition5
Subjects
ARTIFICIAL STONE
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FERROUS OR NON-FERROUS ALLOYS
LIME, MAGNESIA
METALLURGY
METALLURGY OF IRON
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
POWDER METALLURGY
PRETREATMENT OF RAW MATERIALS
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
PRODUCTION AND REFINING OF METALS
REFRACTORIES
SEPARATION
SLAG
TRANSPORTING
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
TREATMENT OF NATURAL STONE
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Summary:Ceramic filter for filtering molten cast iron is made from a hgih m.pt. ceramic material with an open-celled foam structure and variable bulk density in different parts of the filter. Ratio of filter surface to filter vol. is 0.0003-9 m2/Cm3 and specific filter resistance is 0.1-0.9 bar-Cm at a fluid flow rate of 5m3/h. Pressure loss across the filter is proportional to specific resistance x, where x is filter length/afflux plane area. The ceramic comprises(wt.%) 20-70 Si carbide, 10-40 Al oxide, 2-20 Si oxide, 10- 30 refractory inorganic binder.
Bibliography:Application Number: KR19850000937