Novel chlorine introducing pipe for precious metal hydrometallurgy

A lining is fixed inside a pipe body, the outer diameter of the lining is matched with the inner diameter of the pipe body, an outer lining is sleeved and fixed outside the pipe body, and the outer lining is located below a kettle opening connecting flange. The bottom pipe is coaxially fixed to the lower end of the pipe body, the air holes are distributed in the side face of the bottom pipe and used for introducing chlorine into a medium, and compared with an existing mode that the air holes are formed in the bottom of the chlorine introducing pipe, chlorine dispersion is facilitated, and blockage is not prone to occurring. 本实用新型公开了一种用于贵金属湿法冶炼的新型通氯管，通过管体内部固定有内衬，内衬的外径与管体的内径相匹配，管体外部套设并固定有外衬，且外衬位于釜口连接法兰的下方，通过在管体内部增设内衬以及管体外部增设外衬，可以提高整体通氯管的刚性，管体下端同轴固定有底管，底管侧面分布设置有气孔，用以将氯气通入介质中，相比现有通氯管底部开设气孔的方式，有利于氯气分散，且不易堵塞。