METHOD OF MAKING LINING IN INDUSTRIAL FURNACE OF LARGE VOLUME, AS WELL AS INDUSTRIAL FURNACE WITH LINING, REFRACTORY BRICK FOR SUCH LINING Russian patent published in 2016 - IPC F27B7/28 C04B35/63 C04B35/03 C04B35/42 C04B35/443 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to unburned, not containing carbon compacted refractory products as refractory lining facing flame of industrial furnaces of large volume for producing cement, lime, magnesium oxide and doloma. For production of refractory lining mixture of granulate refractory materials is produced, which form ceramic binder at temperatures higher than 900 °C, at least one of first temporary binder, which provides binding particles granulate in range of temperatures from room temperature to 500 °C, and at least one second temporary binder, which provides binding particles granulate in temperature range from 300 up to 1,000 ^oC. Compacted from mixture bricks have compression strength in cold state of more than 20 MPa and represent magnesium chromite bricks, magnesium-spinel and spinel bricks, bricks from zirconium dioxide stabilised with magnesium oxide and zirconium, stabilised with magnesium oxide, bricks from magnesia herzynite and magnesia galaxite, dolomite, dolomite-magnesite and lime bricks, forsterite and olivine bricks, bricks from magnesia forsterite, bricks from magnesia pleonaste, magnesite bricks. As first temporary binder lignosulfonate, synthetic resin, pitch, dextrin, organic acids are used in amount of 0.5-8 wt%, and as second binder - metallic Al, Mg, Si, Fe, fine-grained oxides, calcium aluminate, clay, etc. in amount of 0.5-15 wt%.

EFFECT: production of refractory products with lower thermal conductivity in ensuring maintenance of given dimensions, as well as with high strength at industrial furnace operation regardless of temperature.

21 cl, 1 tbl, 1 dwg