Abstract:

According to the damage of CDQ connecting duct in China and the features of CDQ bricklaying in Phase Ⅳ of coking project for Baosteel, new technologies have been put forward, such as three-segment expansion joint, silicon nitride and silicon carbide bonded brick, precise-position at center of connecting duct as well as accurate elevation and inner diameter so that the CDQ connecting duct bricks can be laid in good quality and the service life of the CDQ chamber can be extended.