A kind of rotary reamer and device for cleaning iron-making blast furnace tuyere slag iron

Abstract

The application discloses a rotary reamer and a device for cleaning slag and iron at the tuyere of an iron-making blast furnace. The rotary reamer includes a reamer blade with a clamping groove, a reamer for fixing the reamer blade, and a ring-shaped fixing member. and fasteners; a limiting slot and a fixing hole are provided on the hinge plate, and the limiting slot is used to accommodate the reamer blade, and the fixing hole is arranged on a side wall of the hinge plate; the annular The fixing piece is provided with a snap-on protrusion and a fixing groove, and when the snap-on groove and the snap-on protrusion are matched, the fasteners pass through the fixing groove and the fixing hole in turn, so as to attach the annular fixing piece to the ring-shaped fixing piece. fixed to the hinge. Using the rotary reamer to clean the slag and iron at the tuyere of the blast furnace can greatly reduce the difficulty of cleaning, improve the cleaning efficiency, ensure the efficient operation of the blast furnace, and avoid the danger of manual cleaning.

Description

technical field [0001] The invention belongs to the technical field of blast furnaces, and in particular relates to a rotary reamer and a device for cleaning slag iron at the tuyere of an iron-making blast furnace. Background technique [0002] As a key part of blast furnace operation, the blast furnace tuyere can ensure that the high-pressure air sent by the blast furnace blower enters the hearth through the blast furnace tuyere, so that the coke is burnt violently to generate heat to ensure that there is enough temperature in the blast furnace hearth to melt the charge. However, after the blast furnace stops working, the tuyere may have slag hanging or slag filling. At this time, it is necessary to clean the slag and iron in the tuyere to ensure the efficient operation of the blast furnace. [0003] In the prior art, the slag iron is generally removed by burning oxygen for cleaning or manual cleaning with tools such as a sledgehammer, which is difficult to clean, low in ef...

AI Technical Summary

Problems solved by technology

However, after the blast furnace stops working, there may be slag hanging or filling in the tuyere. At this time, it is necessary to clean the slag and iron in the tuyere to ensure the efficient operation of the blast furnace

[0003] In the prior art, slag and iron are generally removed by burning oxygen or manually using tools such as sledgehammers, which is difficult to clean, low in cleaning efficiency and high in cleaning costs.

Images