Coal gun injection regulating device for blast furnace

Abstract

This utility model discloses a coal lance induction adjustment device for blast furnaces, belonging to the technical field of blast furnace ironmaking equipment. It includes a limiting collar movably fitted around the outer periphery of the coal lance and an adjusting valve connected to the tail end of the coal lance. The coal lance can slide and rotate relative to the limiting collar. The limiting collar is fixedly connected to the blast furnace and encircles the outer periphery of the pulverized coal injection port on the blast furnace. A positioning pin, with its end abutting against the outer periphery of the coal lance, is threaded through and connected to the side wall of the limiting collar. The adjusting valve is connected to a rear connecting pipe for receiving compressed air, and the outer wall of the rear connecting pipe is provided with several tail fins. This utility model's coal lance induction adjustment device for blast furnaces solves the problem in the prior art of flexibly and quickly adjusting the length and angle of the coal lance extending into the blast furnace.

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