用小座爐化鉄的缺点是鉄水温度低,熔化效率慢,焦炭消耗量大。如将座爐改成附图的形式,可以大大改善熔化情况。改进后的座爐是采用預热多风口送风,爐身用鑄鉄分四半鑄成,用螺栓联接。预热风带用3公厘厚的鉄板焊成(或者鑄成),使用时将預热风带上的四个进风鉄管对准爐身的进风管插进去就可以了。 The disadvantage of using a small stove 鉄 鉄 water temperature is low, the melting efficiency is slow, coke consumption. If the seat furnace into the form of drawings, can greatly improve the melting situation. Improved seat furnace is preheated multi-tuyere air supply, the shaft is cast with cast bronze in four halves and bolted. Preheat the wind with 3 mm thick slab welding (or cast), the use of preheating the wind on the four inlet pipe into the wind into the air intake pipe on it.