Study on standards of refractory used for hot wind pipes between blast furnace and hot wind stove
To improve the service life of hot wind pipes between blast furnace and hot wind stove,the data of compositions and properties of the refractory for hot wind pipes used in WISCO and other different enterprises were collected and analyzed.The interrelated standards and the technical conditions were also discussed.The contents and requirements of refractory trade standard for hot wind pipes were introduced.The quality of the refractory for hot wind pipes should be controlled by composition.By control of creep rate,heat permanent line change and compressive strength of heavy bricks,the quality of the lining for hot wind pipes was insured.By control of hot conductivity coefficient,heat permanent line change and compressive strength of light bricks,the heat insulation and safe service performance of hot wind pipes were insured.The service life of hot wind pipes could be improved and the maintenance cost would be reduced by establishing the trade standard of refractory for hot wind pipes,and it was benefit to improve the technical level of iron-making.
NETL
NSTL
万方数据
维普
