Method of repairing blast furnace wall lining

A method of repairing the wall lining of a blast furnace comprising the steps of:

• blowing down the blast furnace after lowering the burden therein to below the damaged part of the lining;
• making, after the blowing down, a plurality of openings and a refractories filling aperture through the furnace wall in the damaged part;
• lowering a panel of refractory material through an opening in the furnace top to a position opposite to the damaged part;
• drawing outside the furnace through one of said openings one end of a string-like member whose other end is attached to said panel, the entire length of the string-like member being protected and stretched through a support tube passed through said openings;
• and
• supplying under pressure, monolithic refractories through said filling aperture into a clearance between the damaged part and panel either during blowing down or after blowing in.