Through the forms of jacket, shaft spiral fin and chamber nozzle heating, the heat efficiency reaches over 95%, which makes the materials quickly and fully aged.

通过外加套、主轴螺旋翅片和腔内喷头加热形式，热效率达到95%以上，使物料快速充分熟化。

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The liningless cupola is featured by that the furnace shaft, except the hearth section, is not lined but substituted by a heat-exchanging jacket (HEJ)which is made of heat-resistant metal.

无炉衬冲天炉的特点是炉体除炉缸部分外，不用炉衬，代之以耐热金属材料制成的炉胆；

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