Adjustment and locking device of pulverized coal injection lance

摘要

Device for adjusting and locking lance of coal injection pulveri cess. The utility model relates to a locking device for launches of pulverized coal injection in blast furnace comprising a flap with internal thread in the rear part of the wheel (8) to fit into the throttle body (9) of the lance (1) and an external thread on the part of the frent And the accelerator.This device is done a lot of advantages, such as to eliminate operational accidents, to circumvent a reduction of motion and to prevent a full stop of the blast furnace caused by recoil of the spears of PCI.