通过在轧钢加热炉上的喷补实践，较大地延长了加热炉的使用寿命。
The service life of the reheating furnace has been prolonged when it was used.
简述蓄热式加热炉结构，提出了改进烘炉方法，从而提高加热炉的使用寿命和性能。
The structure of regenerative soaking pits is related, the method of improving stove is put forward. Meanwhile, the properties and service life of regenerative soaking pits are increased.
轧钢加热炉的使用寿命一般为3 ~ 10年，锻钢室式加热炉的寿命约为2年，单侧上烧嘴均热炉的使用寿命一般为3 ~ 6年。
Generally, the steel rolling furnace's service life is 3-10 years, the wrought steel chamber furnace is about 2 years, and the soaking pit side nozzle furnace's is 3-6 years.
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