Solution
Application Cases
For over two decades, Kexin Refractory Materials has been deeply rooted in the competitive arena of refractory materials for blast furnace iron-making systems. Focusing on innovation in taphole materials and ramming masses, Kexin has developed a comprehensive "materials + solutions + services" one-stop service model. Leveraging its expert expertise, the company has risen to become a leader among China's top refractory suppliers.
Leveraging advanced intelligent manufacturing capabilities, a robust research collaboration network, and extensive hands-on field experience, Kexin Furnace Materials has provided deep empowerment to hundreds of large and medium-sized steel enterprises worldwide. The company has achieved remarkable results in areas such as extending service life, reducing iron consumption per ton, optimizing corporate cost structures, and enhancing production and operational efficiency—helping the steel industry embark on a new journey toward greater efficiency and sustainability.
Minyuan Steel's No. 3 Blast Furnace Taphole Project
The iron-running system of the tapping channel, contracted by Kexin Refractory Materials, safely handled 290,000 tons of molten iron in a single operation—without requiring any repairs—demonstrating unequivocally the material's outstanding resistance to erosion and its exceptional structural stability.
Yangtze River Steel's Turnkey Service for Iron Tapping Channels
Changjiang Steel's integrated iron-groove contracting service, achieved through systematic material selection and construction management, has extended the service life of iron grooves by more than one month, significantly easing the operational burden at the furnace front—and has earned high praise from customers.
Tiangang Group's No. 2 Blast Furnace Iron Tuyere Spray Coating Maintenance
Tiangang Group's No. 2 blast furnace iron runner coating maintenance focuses on precise spray repair of the weak areas in the main channel, effectively enhancing localized erosion resistance and extending the iron-carrying cycle by 30,000 to 50,000 tons—ensuring efficient, continuous production safety.
An Indonesian Refractory Materials Export Project
Facing challenges such as long ocean transportation cycles and complex environmental conditions, Indonesia's export project relies on Kexin ramming materials, which boast exceptional storage stability of up to 8 months without any degradation in construction performance—ensuring the smooth progress of overseas projects.
Jiuquan Steel's 7th Blast Furnace Gun Mud Test Evaluation Report
From May 7 to May 12, 2023, Zhengzhou Kexin Waterless Gun Mud was tested at the No. 7 Blast Furnace North Iron Mouth of the Ironmaking Plant at Jiugang Hongxing Co., Ltd.
From May 29 to June 10, 2023, Zhengzhou Kexin Waterless Mud was put to an expanded trial at No. 7 Blast Furnace in the Ironmaking Plant of Jiugang Hongxing Co., Ltd. A total of 32 tons of waterless mud were used during the trial. The test was conducted simultaneously at two tapping holes—south and north—of No. 7 Blast Furnace, resulting in a cumulative 99 iron tapping events and producing a total of 57,452.4 tons of molten iron. Here are the key findings from Zhengzhou Kexin's expanded trial of the waterless mud:
Quality Evaluation of Nansteel Water-Free Gun Clay
Starting from May 4, 2023, Kexin gunning material was trialed successively at No. 1 and No. 2 & No. 3 tuyeres of No. 1 Blast Furnace at the First Ironmaking Plant.
Pangang Xichang Steel & Vanadium Experimental Report
From May 21 to 24, 2023, Zhengzhou Kexin Furnace Materials Co., Ltd. (hereinafter referred to as Zhengzhou Kexin) used its anhydrous gunning material at the No. 1 East tuyere of the 1750 m³ blast furnace in the Ironmaking Plant of Panzhihua Steel & Vanadium Co., Ltd. Xichang Steel & Vanadium Co., Ltd. (hereinafter referred to as Xichang Steel & Vanadium).
Shanxi Jianlong Kexin Test Report
In this experiment, Zhengzhou Kexin gunning material was used at the north iron tapping opening, with a total of 12 furnace trials.
Zhengzhou Kexin Vanadium-Titanium Gun Mud Application Cases
Regarding the severe hearth erosion issue, our plant’s blast furnaces have primarily adopted strategies such as developing a central gas flow to suppress edge erosion, combined with the strategic use of vanadium-titanium mud specifically for maintaining the area around the tuyere.
Zhengzhou Kexin Magnesia-Based Gunning Material Application Case
On January 1, 2024, the night shift at Zhengzhou Kexin Magnesia-based Gun Mud started a trial run of the slag tap in Team A of Furnace #1.
Zhengzhou Kexin Gun Mud Application Cases
To maintain the furnace hearth, ensure safe production, and improve the working condition of the tuyere, the ironmaking plant has specially introduced a new type of vanadium-titanium mud (produced by Zhengzhou Kexin) to address these challenges.
Zhengzhou Kexin Iron Mouth Repairing Gun Mud Application Case
Since its commissioning at the end of 2008, No. 3 blast furnace at Yanghan Yete Steel’s ironmaking plant has entered the later stage of its operational life. Currently, severe erosion of refractory materials has occurred in the furnace hearth sidewalls and around the tapping hole area, leading to minor gas leakage in localized sections of the western tapping channel. This has resulted in occasional spattering during initial tapping operations, significantly disrupting routine tap-hole maintenance and disrupting the normal rhythm of iron tapping. Moreover, it poses a serious risk to safe iron discharge from the furnace front. To address this issue, the ironmaking plant has requested Zhengzhou Kexin gunning material company to develop and produce a specialized tap-hole maintenance gunning mix tailored to the current conditions, with trials planned for implementation from early April to May 2018.
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Contact Information
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Phone:+86-371-63126179 / +86-13938251125
Fax:+86-371-63126179
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