A method for tapping a blast furnace taphole and a blast furnace taphole equipment system

Abstract

The invention relates to a method and an equipment system for forming a tapping hole in a blast furnace. The method comprises the following steps: firstly, drilling a hole in the blast furnace along a preset tapping channel from a tapping hole reference point by adopting a mechanical tapping hole forming machine, and withdrawing a drilling rod of the mechanical tapping hole forming machine from the tapping channel when the drilling rod reaches a preset position; and secondly, generating laser by adopting a laser tapping hole forming machine to break through the tapping channel along the hole drilled by the mechanical tapping hole forming machine. The equipment system comprises a mechanical tapping hole forming machine and a laser tapping hole forming machine capable of generating laser, wherein the mechanical tapping hole forming machine and the laser tapping hole forming machine cooperate for breaking through and forming the tapping channel of the blast furnace. The method and the equipment system have the beneficial effects that the wear of a drill bit of the mechanical tapping hole forming machine is reduced; the formed tapping channel is smooth and convenient in tapping; tapping hole forming machine equipment can be prevented from being damaged during splashing at the tapping hole; and the remote operation can be carried out, so that the personal safety of operators is ensured.

Description

technical field [0001] The invention relates to a method for opening a tap hole of a blast furnace and an equipment system for tapping a tap hole of a blast furnace, which are used for opening a tapping channel before tapping the blast furnace. Background technique [0002] With the development of large-scale blast furnaces, the formula of blast furnace tap hole gun mud has been continuously improved, and its strength and hardness have increased, resulting in problems such as poor drilling effect of tap hole machines, low opening efficiency, short service life of drilling tools, and high consumption costs. has been difficult to solve. After the taphole machine drills to the red-hot layer of the gun mud, it often happens that the taphole machine cannot drill. At this time, the workers in front of the furnace usually use oxygen to boil the taphole, resulting in long taphole time and difficult operation. The labor intensity of personnel is high, and the personal safety of the ...

AI Technical Summary

Problems solved by technology

[0002] With the development of large-scale blast furnaces, the formula of blast furnace tap hole gun mud has been continuously improved, and its strength and hardness have increased, resulting in problems such as poor drilling effect of tap hole machines, low opening efficiency, short service life of drilling tools, and high consumption costs. has been difficult to solve

When the hole is blocked, the liquid slag and iron in the potholes in the tunnel cannot flow back into the furnace hearth. Under the action of internal and external pressure, the liquid slag and iron will be squeezed into the gun mud, causing iron in the tunnel and making it difficult to open the iron hole next time.

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