Gunning gun for converter

A converter gunning gun comprises a feeding pipe, a handle and a spray head, and is characterized in that the spray head comprises a straight barrel section and an expansion section, and the straight barrel section is connected with the expansion section in a welded mode; the length of the straight cylinder section of the spray head is 5-15 cm, and the inner diameter of the straight cylinder section is 5- The nozzle expansion section is in a horn shape, the length of the nozzle expansion section is 5-30 cm, and the included angle of the horn is 0-120 degrees. After the gunning material is sprayed out through the novel gunning gun, the gunning coverage area is increased, the spreading rate on the converter lining surface is high, the adhesion is good, and the problems that the maintenance smoothness of the converter lining is poor, the coverage surface is uneven and the like due to excessive concentration of the material are effectively avoided. 一种转炉喷补枪，包括进料管、手柄、喷头，其特征在于：喷头包含直筒段和扩张段，直筒段与扩张段间通过焊接连接；喷头直筒段的长度为5~1