Combined type tool for cutting tuyere second jacket of blast furnace

Abstract

The invention discloses a combined type tool for cutting a tuyere second jacket of a blast furnace. The tool comprises a rotating shaft. Multiple annular tool bodies are arranged on the rotating shaft in a sleeving manner in the axial direction. The outer diameters of the annular tool bodies distributed on the rotating shaft in the axial direction are gradually reduced. A tool cutting face is formed when outermost cutting points of the multiple annular tool bodies conduct rotary cutting, the annular tool bodies can be moved and adjusted in the axial direction, and therefore the included angle between the tool cutting face and the horizontal plane is adjusted. The requirement for cutting different sizes of tuyere second jackets is met, dense smoke and dust cannot be generated in the tuyere second jacket cutting process, resource recycling of tuyere second jacket copper materials can be achieved, and building of energy-saving and environment-friendly steel enterprises is facilitated.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment construction, in particular to a combined cutting tool for two sets of blast furnace tuyere cutting. Background technique [0002] The second set of blast furnace tuyere is the core equipment of blast furnace ironmaking. Due to its high working temperature (2000°C), it will undergo large deformation after long-term operation. Once the deformation is too large, it will cause weld cracking and cooling water leakage, endangering the safety of blast furnace production. At the same time, it will also lead to serious consequences such as bonding of the edges of the blast furnace hearth, a decrease in blast furnace output, a substantial increase in the cost of tuyere spare parts, air leakage from the air supply device, and gas leakage in the tuyere area. Therefore, the second set of tuyere must be replaced. [0003] When the deformation of the second set of tuyere is not large, the impact...

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Problems solved by technology

[0006] 2. The destructive demolition of the second set of tuyeres by means of flame cutting has resulted in the inability to recycle the copper materials of the tuyeres, resulting in waste of resources, and a large amount of dust and black smoke are likely to be generated during the cutting process, which is not conducive to the construction of energy-saving and environmentally friendly steel enterprises;

[0007] 3. Due to the poor line of sight, the cutting operation of the second set of tuyere has relatively high technical requirements for workers. Once the operation is improper, it will cause damage to the large set of tuyere, resulting in the shutdown of the blast furnace

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