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首钢炼钢厂二步锻烧高温隧道窑是一座长29m锻烧转炉炉坯用白云石熟料的工业窑炉。白云石熟料(经过一步锻烧后的白云石)以步进方式由炉首向炉尾运动时被锻烧。沿窑的长度方向上分为三个温度带:预热带、煅烧带和冷却带。预热带温度在100～1300℃间逐渐递增,有五个测温点,过去用热电偶和光学高温计测温。锻烧带温度在1550～1700℃之间,有三个测温点,过去用光学高温计测温。隧道
The Shougang Steel Works, a two-step calcination tunnel kiln, is an industrial kiln with a dolomite clinker for a 29m long calciner. Dolomite clinker (after a step calcined dolomite) step by step from the furnace head to the end of the campaign was calcined. Along the length of the kiln is divided into three temperature zones: preheat zone, calcined zone and cooling zone. Preheating temperature gradually increased between 100 ~ 1300 ℃, there are five temperature measurement points, the past with thermocouple and optical pyrometer temperature. Forging band temperature between 1550 ~ 1700 ℃, there are three temperature measurement point, the past temperature with an optical pyrometer. tunnel