Blast furnace air supply energy-saving device for stainless steel manufacturing

By installing multiple high-temperature compensators on the periphery of the middle-pass pipe of the blast furnace air supply device, the combination of metal pipes, corrugated pipes and high-temperature ceramics can achieve angle and axial self-adjustment, which solves the problem that the existing blast furnace air supply device cannot perform axial compensation, avoid damage to the refractory lining, and ensure the normal and safe production of blast furnace smelting.

CN222665889UActive Publication Date: 2025-03-25YANTAI KUNSITE ENGINEERING MACHINERY CO LTD
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Patent Information

Application Number
CN202420858259.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-03-25
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

The existing blast furnace air supply device cannot perform axial compensation in high temperature and high pressure environments, resulting in cracks in refractory lining, air leakage, redness and other problems, affecting the normal and safe production of blast furnace smelting.

Method used

A blast furnace air supply and energy-saving device for stainless steel manufacturing is designed. By installing multiple high-temperature compensators on the periphery of the middle pipe, the combination of metal pipes, corrugated pipes and high-temperature ceramics can achieve angle and axial self-regulation to protect the refractory lining.

Benefits of technology

The device can self-adjust when temperature and pressure change, avoid damage to the refractory lining, prevent air leakage, redness and other problems, ensure the normal and safe production of blast furnace smelting, and extend the service life of the device.

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Abstract

The utility model discloses a blast furnace air supply energy-saving device for stainless steel manufacturing. Relates to the technical field of related equipment for stainless steel, and adopts a bustle pipe, a noise reduction device and a high-temperature compensator, the noise reduction device is installed at the bottom end of the bustle pipe, and the noise reduction device is fixedly connected with a through pipe through a threaded column in a threaded mode. According to the utility model, the plurality of high-temperature compensators are arranged, and the high-temperature compensators are matched with the gaps between the two metal pipes, the fire-resistant liners, the corrugated pipes and the high-temperature ceramsite, so that the whole pipeline has an angle compensation function and an axial compensation function, and the temperature and the pressure in the pipeline are changed; when the tuyere is used, the refractory lining can be protected to be intact through the self-adjusting function of the high-temperature compensator, so that the phenomena of air leakage, redness, overhigh surface temperature and the like are avoided, the technical requirements of blast furnace smelting on the tuyere are guaranteed, normal and safe production is also guaranteed, and the service life of the device is further prolonged.
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