Castable for permanent layer of main iron runner of blast furnace

The invention discloses a castable for a permanent layer of a main iron runner of a blast furnace, and mainly solves the technical problem that an existing permanent layer of a main iron runner of a blast furnace is prone to iron penetration, short in service life and high in use cost. The castable...

Full description

Saved in:
Bibliographic Details
Main Author HONG JIANGUO
Format Patent
LanguageChinese
English
Published 09.11.2021
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
Online AccessGet full text

Cover

More Information
Summary:The invention discloses a castable for a permanent layer of a main iron runner of a blast furnace, and mainly solves the technical problem that an existing permanent layer of a main iron runner of a blast furnace is prone to iron penetration, short in service life and high in use cost. The castable for a permanent layer of a main iron runner of a blast furnace comprises the following chemical components in percentage by weight: 46-56% of Al2O3, 25-35% of SiO2, 2-4% of CaO, 15-20% of SiC, 1-2% of C and 0.5-1.0% of phosphite ester, totaling 100%. The compressive strength of a blast furnace main iron runner permanent layer manufactured by the castable disclosed by the invention under the condition of 110 DEG C * 24h is greater than or equal to 40MPa; and the heat conductivity coefficient of the blast furnace main iron runner permanent layer at 550 DEG C is 0.25-0.35 W/m.k. The castable disclosed by the invention is low in cost, and the blast furnace main iron runner permanent layer prepared from the castable dis
Bibliography:Application Number: CN202010370893