A device for determining the nitrogen content in a steelmaking process

CN224341296UActive Publication Date: 2026-06-09LIAONING NITROGEN ROLL NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING NITROGEN ROLL NEW MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In steelmaking processes, traditional methods for determining nitrogen content pose safety risks due to close human contact with high-temperature environments, and the results are easily contaminated.

Method used

A nitrogen content measuring device was designed, comprising a temporary storage cylinder, a gas sampling probe, measuring equipment, and a liquid cooling system. The device utilizes a drive mechanism and a one-way valve to achieve automatic gas sampling and transfer, and combines a liquid cooling system to cool the device, avoiding manual contact with high temperatures.

Benefits of technology

It enables safe and accurate nitrogen content determination, avoids the risk of burns and splattering, ensures the accuracy of the measurement results, and extends the service life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a nitrogen content measuring device in steelmaking processes, comprising a temporary storage cylinder, a gas sampling probe, and a measuring device. The temporary storage cylinder is vertically arranged, with an inlet at its bottom communicating with its interior. An outlet tube, also communicating with its interior, is located on one side of the bottom of the temporary storage cylinder and is connected to the measuring device. The gas sampling probe is located at the bottom of the temporary storage cylinder and communicates with the inlet. A piston is fitted inside the temporary storage cylinder, and a drive mechanism is provided on the cylinder to adjust the piston's height. This utility model, through the drive mechanism driving the piston to rise and fall, combined with the unidirectional flow guidance of the inlet and outlet check valves, can automatically complete the extraction and transfer of nitrogen from molten steel. This avoids close contact between personnel and the high-temperature environment, eliminating safety hazards such as burns and slag splashes. The inlet and outlet check valves ensure that the gas sample flows along a predetermined path, preventing gas backflow or contamination during sampling and ensuring the accuracy of the measurement results.
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