唐波夫机械工厂在出铁以后,用黏土和木屑的混合物,制成高50公厘直径35公厘的圆锥形塞子来封闭前炉出铁口。黏土和木屑的混合物是在开炉前一、二小时做好的,配合成分为93份(按重量)湿度为12~14%的黏土,7份(按重量)湿度为l0~12%的木屑,将木屑放于黏土内仔细搅拌。在开炉时,并未发现出铁口有不易通 At the Tambov machinery plant, after tapping, a conical plug of 50 mm in diameter and 35 mm in diameter was made of a mixture of clay and wood chips to close the front tapping hole. Mixture of clay and sawdust is to open one or two hours before the open, with the composition of 93 parts by weight of the humidity of 12 to 14% of the clay, 7 parts by weight of humidity l0 ~ 12% of the wood Place the chips in the clay and stir carefully. In the open furnace, did not find the taphole is not easy to pass