Rotary reamer for cleaning slag iron at tuyere of iron-making blast furnace and device for cleaning slag iron at tuyere of iron-making blast furnace

Abstract

The invention discloses a rotary reamer for cleaning slag iron at a tuyere of an iron-making blast furnace and a device for cleaning the slag iron at the tuyere of the iron-making blast furnace. The rotary reamer comprises reamer blades with clamping grooves, a reamer disk for fixing the reamer blades, an annular fixing piece and fastening pieces. Limiting grooves and fixing hole are formed in the reamer disk, the limiting grooves are used for containing the reamer blades, and the fixing holes are formed in one side wall of the reamer disk. The annular fixing piece is provided with clamping protrusions and fixing grooves, and when the clamping protrusions are matched with the clamping grooves, the fastening pieces sequentially penetrate through the fixing grooves and the fixing holes so that the annular fixing pieces can be fixed to the reamer disk. The slag iron at the tuyere of the iron-making blast furnace is cleaned by using the rotary reamer, so that the cleaning difficulty can be reduced to a great extent, the cleaning efficiency is improved, the efficient operation of the blast furnace is ensured, and the danger of manual cleaning can be avoided.

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 and iron at tuyere of ironmaking blast furnaces. Background technique [0002] As a key part of the blast furnace operation, the tuyere of the ironmaking blast furnace can ensure that the high-pressure air sent by the blast furnace blower enters the hearth through the tuyere of the blast furnace, so that the coke is burned violently to generate heat to ensure that there is enough temperature in the hearth of the blast furnace to melt the charge. However, after the blast furnace stops working, there may be slag hanging or slag 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, iron slag is generally removed by burning oxygen or manually using tools such as a sledgehammer. The cleaning is diff...

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.

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