ADDITIONAL COLUMN FOR SUPPORT OF CHECKER BRICKS, SUPPORT OF CHECKER BRICKS AND METHOD OF COLUMN STRENGTHENING Russian patent published in 2019 - IPC C21B9/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to blast-furnace production, namely, to blast furnace air heaters. Additional column for metal construction supporting a checker bricks, which is located between the surface of the hearth and metal grid, which supports the checker bricks in the air heater, comprises a column body made outside the existing string located between the metal grid and the hearth surface, so as to be coaxial with the existing string, and an altitude control device configured to adjust the height of the column body, wherein the column body includes a plurality of cylindrical sections of the column, mounted one on the other in the height direction.

EFFECT: increased amount of accumulated heat, reduced operating costs.

10 cl, 13 dwg