下面介绍一种适合于小型铸造车间使用的冲天炉,这种冲天炉的炉体下节可以移动,在熔化带装有水冷装置,经过长期使用,证明效果良好。冲天炉炉膛内径为500公厘(见图a),炉(?)除去在装料口下面的一排由铸铁砖组成外,其余都是用耐大砖粉 The following is a description of a suitable cupola for use in a small foundry, where the bottom section of the cupola can be moved and water-cooled in the melting zone for long periods of time to prove effective. Cupola furnace inner diameter of 500 mm (see Figure a), furnace (?) Remove the charge port below a row of cast iron bricks, the rest are with large brick resistant powder