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The oxygen lance is a key process component in oxygen converter steelmaking. Its performance characteristics directly influence smelting efficiency and blowing time, ultimately impacting steel quality and production yield. Below is a detailed introduction to the oxygen lance and its holder

Oxygen lance

The oxygen lance, also known as a thermal lance, is a tubular device designed to inject high-pressure, high-purity oxygen into the molten metal pool above the converter at supersonic speed. It typically consists of three main components: Nozzle – A crucial part of the oxygen lance, made of industrial-grade pure copper. The high-pressure oxygen is divided at the nozzle and directed into multiple Laval-type nozzles, which first contract and then expand to optimize oxygen flow. Tube – A concentric seamless steel tube, connecting the nozzle at the lower end and the gun tail at the upper end. Tail – Includes oxygen supply, water inlet, and drainage branch pipes, which integrate with the oxygen pipeline network and high-pressure water system of the workshop. Given the harsh operating conditions, the oxygen lance must withstand extreme temperatures, erosion, and chemical exposure. To ensure reliable performance, it requires a robust metal structure combined with a high-efficiency water-cooling system for protection and durability

Oxygen lance holder

The oxygen lance holder is an integral component that provides support and stability for the lance during operation. It features a vertical rotating shaft, allowing the transition bracket to be mounted rotatably on the holder. This design enables the lance to swing within a specific range, ensuring greater adaptability to the smelting process. When designing the holder, key factors such as weight distribution, stability, and operational convenience must be carefully considered to guarantee safe and efficient functionality.

In conclusion, the oxygen lance and its holder play a critical role in metallurgical equipment. Their design and application require rigorous evaluation and testing to ensure optimal performance and reliability in industrial smelting operations

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Oxygen guns, oxygen gun bases

The oxygen lance is a key process component in oxygen converter steelmaking.

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