| 摘要 |
The invented method of repairing refractory masonry of coke ovens during their operation is characterized in that a repair zone is thermally insulated and cooled below 80 degC, while outside of the repair zone the temperature is maintained on at least 1050 degC. New masonry is erected in blocks (201, 301, 401, 202, 302, 402, 203, 303, 403), which are laid and coupled tight by mortar on each other without joints, whereby in the course of the erection of the following higher situated blocks (202, 302, 402, 203, 303, 403) indirect heating is carried out by using a successively transferred heat-insulating partition (13) of blocks (201, 301, 401, 202, 302, 402) situated below the level of the partition (13). In adjacent heating walls (2, 3, 4), there are erected blocks (201, 301, 401, 202, 302, 402, 203, 303, 403) in stages of the same height. Preferably, the number of simultaneously rebuilt heating walls (2, 3, 4) in one furnace amounts to six at the most, each block (201, 301, 401, 202, 302, 402, 203, 303, 403) has 4 to 10 rows of elements (11) stacked on each other and the connections of the blocks (201, 301, 401, 202, 302, 402, 203, 303, 403) are straight. In the first heating phase, air can be optionally blown into the repair zone from the surrounding chambers (7´´) being situated outside the repair zone. After rebuilding, the repair zone is gradually heated to operational temperature by means of direct heating by burner flame of the repaired channels (6). |
