CHARGE FOR PRODUCING COARSE-CERAMIC REFRACTORY MAIN PRODUCT, SUCH PRODUCT, AS WELL AS METHOD FOR PRODUCTION THEREOF, INDUSTRIAL FURNACE LINING AND INDUSTRIAL FURNACE Russian patent published in 2024 - IPC C04B35/43 F27B1/14 F27B7/28 

FIELD: furnaces and stoves.

SUBSTANCE: present invention relates to production of coarse-ceramic refractory magnesia or magnesia-spinel moulded product, as well as to lining an industrial furnace using said product. Dry charge for producing refractory moulded products contains a dry mixture consisting of a) ≥ 70 wt.% granular magnesia component, consisting of at least one magnesia with MgO content from 85 wt.% to < 91.5 wt.% as the main component; b) 2–10 wt.% of a granular elasticising component from at least one sintered bauxite with Al₂O₃ content from 70 to 92 wt.%, wherein the elasticising component has a grain size of ≤ 2.5 mm. Dry mixture can additionally contain a magnesian component with a higher content of MgO than in the main component. Dry charge is intended for production of sintered or non-sintered refractory articles for cement kiln, lime, magnesite or dolomite kilns, as well as non-ferrous metal smelting furnaces.

EFFECT: high thermal stability and resistance to temperature drops.

50 cl, 3 dwg, 9 tbl