在热风炉燃烧室二侧,各开一个洞口,洞口宽40公分,高10公分。一侧洞口底边沿地面40公分,另一侧距底边地面70公分。二个洞口之间斜铺一条平道,如图所示,道宽40公分。利用大桶铁皮作成40公分长,35公分宽,9公分高铁盒、铁盒二端作成钩,以便盒与盒联结。焙烧方法:将盛满矿石的铁盒依次由热风炉燃烧室距地70公分高的洞口推进,盒与盒之间钩连好。一次可装4个盒。 In the stove on both sides of the combustion chamber, each opening a hole, hole width 40 cm, 10 cm high. The bottom edge of the hole along the ground 40 cm, the other side of the ground from the bottom 70 cm. Oblique between the two openings a flat road, as shown, road width 40 cm. The use of large metal plate made of 40 cm long, 35 cm wide, 9 cm high-speed rail, made of two ends of the hook, so that the box and the box. Roasting method: The ore-filled tin box followed by the hot blast stove combustion chamber away from the 70 cm high hole advance, the box and the box hook good. Can hold 4 boxes at a time