Detection device for upper nozzle of tundish

By designing a simple and low-cost intermediate ladle sprue inlet detection device, the shortcomings of air permeability detection were solved, production efficiency and product quality were improved, and timely air permeability detection was achieved, thus avoiding production and quality problems.

CN224263023UActive Publication Date: 2026-05-19ANGANG STEEL CO LTD
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Patent Information

Application Number
CN202520402754.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-05-19
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing technologies lack effective devices to detect the air permeability of the tundish nozzle, leading to decreased productivity and steel quality problems, and also making it impossible to address the issue of poor air permeability in a timely manner.

Method used

A simple and low-cost intermediate ladle inlet testing device was designed, including components such as a flow meter, a tee connector, a pressure gauge, a pressure regulating valve, and a hose. The device tests the air permeability of the inlet by adjusting the pressure and flow rate, and promptly clears blockages when the test results are unsatisfactory.

Benefits of technology

It significantly improved the air permeability of the inlet, increased production efficiency, avoided production and quality accidents, and provided product quality tracking data support, thereby improving the quality of refractory materials.

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Abstract

The utility model discloses a detection device for an upper nozzle of a tundish, which relates to the technical field of ferrous metallurgy and comprises a flowmeter, the lower end of the flowmeter is connected with a three-way joint, the other two ends of the three-way joint are connected with a first pipeline and a second pipeline, a pressure gauge is mounted on the first pipeline, and a pressure regulating valve is mounted on the second pipeline. The upper end of the pressure regulating valve is connected with a hose, the lower end of the pressure gauge is connected with an air outlet pipe, one end of the hose is externally connected with a water feeding opening, a flowmeter switch is arranged on the flowmeter, and a pipe clamp is fixed to the outer wall of the second pipeline. The device for detecting the air permeability of the upper nozzle is simple in structure, low in cost, capable of remarkably improving the air permeability of the upper nozzle and improving the working efficiency, and capable of effectively avoiding production and quality accidents caused by poor air permeability of the upper nozzle. And meanwhile, statistical data of the detection result is also convenient for refractory material manufacturers to track fluctuation of product quality, and data support is provided for continuously improving the refractory material quality.
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