Tuyere ring manufacturing mold and tuyere plug

Abstract

The invention discloses a tuyere ring manufacturing mold. The mold comprises a bottom plate, a hollow inverted circular truncated cone outer shell is arranged on the bottom plate, an inverted circulartruncated cone inner shell is arranged in the hollow part of the inverted circular truncated cone outer shell, and the inverted circular truncated cone inner shell is detachably arranged on the bottom plate. Under the action of the tuyere ring mold, materials for manufacturing the tuyere ring can be mastered and the use amount of the filling material filled in the tuyere ring can be mastered, sothe material is not wasted, the operation is simple, the small-diameter end of the tuyere ring internally provided with the filling material is directly inserted towards the blast-furnace tuyere, thetuyere ring or the filling material in the tuyere ring is directly poked off during disassembly, other operations are not needed, and the operation is simple and rapid. The invention further disclosesthe tuyere plug which is simple in structure, convenient to manufacture, and convenient to disassemble and materials can be mastered. The tuyere plug manufactured by the invention cannot be blown offby wind and can be poked off.

Description

technical field [0001] The present invention relates to the technical field of blast furnace smelting, and more specifically, relates to a mold for making tuyere rings. In addition, the present invention also relates to a tuyere ring and a tuyere plug made by using the mold for making the tuyere ring. Background technique [0002] During the long-term planned or unplanned shutdown of the blast furnace, it is necessary to add circles or block the tuyere. This operation is to maintain a large blast kinetic energy of the blast furnace under the condition of small air volume, activate the hearth, and eliminate the blast furnace. Cylinder bonding, and finally achieve the purpose of rapid recovery of furnace conditions. [0003] Blast furnace tuyere rings are often easily blown off due to quality problems such as uneven thickness and poor strength, failing to achieve the purpose of increasing the blast kinetic energy. Secondly, when blocking the tuyere with water taphole mud, th...

AI Technical Summary

Problems solved by technology

[0003] Blast furnace tuyere rings are often easily blown off due to quality problems such as uneven thickness and poor strength, failing to achieve the purpose of increasing the blast kinetic energy

Secondly, when blocking the tuyere with water taphole mud, the front workers of the furnace often use flat shovels to transport the water taphole mud to the tuyere, and the phenomenon of falling often occurs. I can only plug mud according to my own experience. It usually takes 15-30 minutes to block a tuyere. Iron drips onto the tuyere and burns the tuyere

Third, the anti-gas erosion and slag-iron corrosion resistance of water blasting mud is poor. When there is little mud plugging, it will be blown away naturally; The tuyeres cannot be opened when the tuyeres are not opened, and the tuyeres cannot be opened for a long time, which will cause the blast furnace to shut down again, slowing down the recovery process of the blast furnace

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