合理确定中频炉炉壁厚度非常重要

合理确定中频炉坩堣（炉壁厚度）非常重要。有的铸造厂片面追求炉壁厚度寿命，追求“炉龄奖”，无 限制增加坩堣（炉壁厚度）厚度，导致能耗增加。实际上，增加炉壁厚度确实能使炉壁厚度寿命延长，但使熔 化率降低（铁水熔化时间延长），持续热量损失增加。国内有一铸造厂使用 15 吨工频炉时为了延长 炉壁厚度使用寿命，曾将炉壁厚度从规定的 170mm 增加到 230mm，炉壁厚度使用寿命确实增加了很多，但 每吨铁水的电耗却高达 1500KW·h，其实是得不偿失。后来，该厂只好把炉壁厚度恢复到 170mm， 电耗几乎降低一半。

It is very important to reasonably determine the wall thickness of the induction melting furnace

It is very important to reasonably determine the core of the induction melting furnace (furnace wall thickness). Some foundries are pursuing the life of furnace wall thickness one-sidedly, pursuing the "furnace age award", and increasing the thickness of the crucible (furnace wall thickness) unlimitedly, which leads to an increase in energy consumption. In fact, increasing the thickness of the furnace wall can indeed extend the life of the furnace wall thickness, but it reduces the melting rate (prolongs the molten iron melting time) and increases the continuous heat loss. In order to extend the life of the furnace wall thickness when a 15-ton industrial frequency furnace was used in a domestic foundry, the furnace wall thickness was increased from the prescribed 170mm to 230mm. The life of the furnace wall thickness did increase a lot, but the electricity consumption per ton of molten iron was lower. As high as 1500KW·h, the gain is not worth the loss. Later, the factory had to restore the thickness of the furnace wall to 170mm, reducing power consumption by almost half.

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