PURPOSE: To stabilize a lining construction by interposing fire resistant and contractable mortar of a carbon bond between adjacent blocks of refractory bricks thereby effectively absorbing the circumferential expansion and to maintaining the joint function for a long period of time.
CONSTITUTION: The refractory brick layers (a), (b), (c) consisting of the refractory brick 3, 4, 5 are disposed via stamp layers to the furnace inside of a shell 1 in the shaft part of a blast furnace. The lining layers are divided to several blocks and the expandable absorption mortar 6 is interposed between the blocks B1 and B2. The mortar 6 is fire resistant oxide of the carbon bond such as Al2O3-C and SiO2-C having excellent heat resistance and alkali resistance and good contractability or fire resistant non-oxide of the carbon bond such as SiC-C. The mortar 6 which has 2W30kg/cm2 pressurizing stress and 10W70% contractability and has 1.0W10mm thickness to maintain the adhesive bending strength to the refractory bricks after the contraction at ≥5kg/cm2 is more preferable.
AOYAMA KAZUTERU
AYUBA ZENSAKU
KASAI KATSUTERU
| JPS54143306U | 1979-10-04 | |||
| JPS4737702U | 1972-12-26 |
Next Patent: METHOD FOR DETECTING STAGNANT LAYER ALONG WALL OF BLAST FURNACE