Iron Mouth Repair Clay Gun

The maintenance of the blast furnace tap hole directly impacts the furnace's productivity, operational efficiency, safety, and longevity—making it a critical component in modern blast furnace operations. Addressing the challenges of difficult tap-hole maintenance during both high-melting operations and the later stages of furnace campaigns, Zhengzhou Kexin Furnace Materials Co., Ltd. has developed a new type of repair mud by incorporating innovative additives, introducing spherical ultrafine powders, and optimizing the structure of the gunning material. This product offers significant advantages in restoring and stabilizing tap holes, easily forming a robust mud pack that effectively protects the furnace wall, thereby enhancing the qualified rate of tap-hole depth. It also boasts features such as easy opening, stable tap-hole depth, and extended iron-flow duration.

Splash-proof gunning material

Blast furnace tuyere spouting has long been a persistent and challenging issue plaguing ironmaking production for many years. Zhengzhou Kexin Furnace Materials Co., Ltd., in collaboration with the blast furnace’s design institute, construction teams, and leading ironmaking experts, has developed a unique and highly effective product and solution package. This includes insights into the root causes of spouting, the specific locations where it occurs, as well as the underlying principles and comprehensive measures for addressing this problem. Building on this robust theoretical foundation, Zhengzhou Kexin Furnace Materials Co., Ltd. has successfully created its anti-spouting gunning mix—developed specifically based on real-world experiences gained from nearly two dozen blast furnaces. The company can now tailor, design, and produce customized anti-spouting gunning mixes to suit the unique conditions of each blast furnace, ensuring precise treatment that delivers rapid and tangible results.

High-Strength Gun泥

The blast furnace smelting intensity has been steadily increasing, leading to new challenges in the tap hole area, such as high temperatures, severe erosion, and intense scouring. As a result, traditional furnace muds can no longer effectively maintain stable tap hole depth, ensure clean slag and iron discharge, or prevent accelerated damage to refractory materials in the tap zone. To address these issues, Zhengzhou Kexin Furnace Materials Co., Ltd. has developed a cutting-edge solution by carefully selecting high-quality, stable raw materials, scientifically optimizing the formulation, incorporating innovative ingredients, and creating a novel high-temperature, high-strength bonding phase. The company’s newly developed high-strength, anhydrous furnace mud boasts exceptional performance, including stable tap hole depth, smooth opening, extended tapping intervals, and remarkably low consumption rates—just 0.1 ton of mud per ton of iron produced.

Waterless gunning material

Used to seal the iron tapping hole of blast furnaces, it plays an indispensable role in ensuring high and stable furnace productivity, improving labor intensity and working conditions at the furnace front, extending the service life of the blast furnace, and achieving cost reduction, efficiency gains, and sustainable, low-carbon operations. Zhengzhou Kexin Furnace Materials Co., Ltd. can design customized water-free gunning materials tailored to specific user requirements—such as furnace capacity, operational practices, and technical specifications—to better meet customer needs and maximize value creation for clients. Zhengzhou Kexin Furnace Materials Co.'s water-free gunning materials boast exceptional features, including smooth gunning performance, excellent filling properties, robust maintenance capabilities for the iron tap hole, minimal risk of tap-hole breakage, leakage, or seepage, easy opening, superior resistance to erosion, steady iron flow during tapping, stable tap-hole conditions, and significantly improved furnace-front environments and reduced labor intensity.

Main Trench Non-Baked Ramming Material

The main-channel unbaked ramming material is an unshaped refractory designed for blast furnace tapholes. It can be used directly without the need for baking, making it ideal for constructing, repairing, and maintaining blast furnace tapholes. This material enables rapid restoration of the taphole’s operational functionality, significantly reducing downtime during blast furnace shutdowns.