当高炉改为炉顶煤气高压操作时,以及降低炮泥的湿度时,用得最广的УЗТMЗ2一030和ЭЗ—050型泥炮的功率就显得不足了。如果不进行予先的理论与试验研究,而是采用增加电机功率或增加减速机的传动比的方法来改造泥炮,常常不能获得良好的效果。堵出铁口时,泥炮的工作在于将炮泥从泥炮推入出铁口的孔道之内。为了沿出铁口孔道推进炮泥,必须使炮泥在炮咀出口处产生压力P。为了确定在这种情况下应该产生的活塞上的力,画了一个泥炮筒图(图1), The power of the most widely used УЗТMЗ2-030 and ЭЗ-050 mud guns was inadequate when the blast furnace was switched to high gas pressure at the top of the furnace and the mud was lowered. It would often not be possible to modify mud guns without resorting to prior theoretical and experimental studies but by increasing the motor power or increasing the gear ratio of the reducer. When blocking the taphole, the work of the mud gun is to push the mud from the clay gun into the hole of the taphole. In order to propel the shotcrete along the tapping hole, pressure must be applied to the shotcrete at the exit of the muzzle. To determine the force on the piston that should have been generated in this case, a mud canister was drawn (Figure 1)