Mud gun with centering marking apparatus and centering method by using the device

摘要

A mud gun with a tap hole centering display device and a tap hole centering method by using the same are provided to perform exact excavation work at the center of a tap hole in centering work by displaying the center at mud filling the tap hole. A mud gun(10) with a tap hole centering display device comprises: a disc discharging the mud with putting pressure in order to fill the mud in the tap hole of a burst furnace; a mud filling cylinder moving a disc forward and backward; a centering tip(110) being mounted inside the mud gun and displaying center at the mud filling the tap hole; and a centering cylinder(120) which is built in the mud gun in order to move a centering tip forward and backward. The centering tip performs centering display at the filled mud after charging mud with the mud gun. The centering cylinder is mounted inside the mud filling cylinder for the miniaturization of the apparatus.