Ceramic oxygen lance for small colored copper side-blown converter
By adopting a ceramic component and venturi structure for the oxygen lance design, the problem of unstable oxygen concentration in the side-blown furnace was solved, achieving stable combustion effect and durable oxygen lance.
CN224470811UActive Publication Date: 2026-07-07BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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Patent Information
- Application Number
- CN202521171209.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2035-06-09
AI Technical Summary
Technical Problem
The oxygen concentration of the oxygen lance in the existing side-blown furnace is affected by the fluctuation of the intake pressure, resulting in unstable combustion performance, which needs to be optimized.
Method used
The oxygen lance, made of ceramic components, combined with the airflow channel of the Venturi structure, uses a reduced diameter design to create a flared mouth and Venturi effect, reducing the impact of intake pressure fluctuations on the concentration of oxygen-enriched air and ensuring combustion stability.
Benefits of technology
It improves the stability of combustion, extends the service life of the oxygen lance, and reduces maintenance costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model belongs to the technical field of oxygen lances, and particularly relates to a ceramic oxygen lance for a small colored copper side-blown converter, which is characterized by comprising an in-furnace nozzle, a connecting sleeve and an oxygen pipe, the in-furnace nozzle, the connecting sleeve and the oxygen pipe are all ceramic parts, the connecting sleeve is provided with a flange used for being connected with the side wall of a converter body and a connecting pipe for air to enter, and the connecting pipe is connected with the connecting sleeve. The in-furnace nozzle is also connected with the flange, the oxygen pipe and the in-furnace nozzle are coaxially arranged, and the gas inlet end of the oxygen pipe is connected with the connecting sleeve through a screw; a reducing hole I is formed in the in-furnace nozzle; and a sealing ring is arranged at the joint of the in-furnace nozzle, the connecting sleeve and the oxygen pipe. The utility model has the advantages of high strength, low density, high temperature resistance and the like. The air flow channel is of a Venturi structure, the pressurization and drainage effects of fluid can be achieved, the adverse effect of fluctuation change of air inlet pressure on the concentration of oxygen-enriched air can be reduced to the maximum extent, the combustion effect is more stable, and production safety is improved.
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