The tank kiln is the core equipment of the glass factory and is generally cold repaired once every few years. The reasons for cold repair under normal circumstances are as follows.
A. The refractory materials in contact with the molten glass are seriously damaged and there is a risk of material leakage, and it is difficult to perform local hot repair.
B. The refractory material of the upper structure is damaged, fire leakage is serious, glass cannot be melted normally, and various thermal repair measures are ineffective.
C. The regenerator is seriously clogged, resulting in increased fuel consumption and reduced glass melting capacity, which significantly increases the cost, and it is economically uneconomical to replace the checker bricks.
Of course, there are various special circumstances that cause the kiln to be shut down for cold repairs. For example, improper design prevents normal production; incorrect selection of refractory materials causes a large number of stones and streaks; serious material leakage in the pool kiln occurs due to various reasons.
The simplest cold repair only replaces the drain hole, pool wall tiles and regenerator checker tiles. Medium-scale cold repairs also require re-laying the bottom of the pool, the small furnace and the large furnace. For large-scale cold repairs, all parts except the foundation and flue must be demolished and repaired. Generally, cold repair is not a simple repair as it is, but must be combined with technical transformation.
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