安装过煤仓口给煤机的人都有这样的经验:由于煤仓口预埋钢管直径较小(一般为25mm),数量较多(一般≥18根),煤仓口砼层较厚(一般≥0.6 m)。在浇筑煤仓口时,虽然采取了一定措施,但还是常常造成煤仓口预埋钢管,60%～70%不是歪斜跑偏就是钢管内被灰浆充填,造成返工、窝工、扯皮等现象,既影响给煤机的安装质量,又造成工期拖延。 Installed coal briquette coal feeder people have such experience: Because of coal bury mouth buried pipe diameter smaller (generally 25mm), a larger number (usually ≥ 18), coal warehouse thicker concrete layer ( Usually ≥ 0.6 m). In pouring coal mouth, although taken some measures, but often caused by coal mouth embedded steel pipe, 60% ~ 70% is not skewed deviation is filled with steel mortar, resulting in rework, nest work, passing the phenomenon, Both affect the quality of the installation of coal feeder, but also lead to delays in the construction period.