Eco-friendly slag-blowing mud

Zhengzhou Kexin Furnace Materials Co., Ltd. has developed an environmentally friendly slag tap that not only prevents the generation of colored smoke, harmful substances, and spattering during opening and closing—but also ensures stable flow rates during slag discharge, with minimal erosion or enlargement of the slag outlet hole.

Blast furnace clay for silicon smelting

Traditional dry ramming mixes for blast furnaces contain high levels of Al₂O₃ and Fe₂O₃, which are impurities that can contaminate the industrial silicon melt. To prevent such contamination and ensure high-quality silicon production, Zhengzhou Kexin Furnace Materials Co., Ltd. has developed a specialized ramming mix tailored specifically for silicon smelting furnaces. This product features Al₂O₃ content ≤2.5% and Fe₂O₃ content ≤0.3%. Field tests have demonstrated its excellent performance: it offers moderate bonding strength, smooth application, and reliable opening characteristics. As a result, impurity levels in the molten silicon remain consistently low, boosting refining efficiency while significantly reducing production costs.

Blast Furnace Clay for Ferroalloy Plants

Ferroalloys are crucial additives in steelmaking, used to adjust the chemical composition of steel and enhance its performance. Ferroalloy furnaces are specialized industrial melting devices designed specifically for producing ferroalloys. These smelting equipment types include submerged arc furnaces, blast furnaces, electric arc furnaces, and induction furnaces. As ferroalloy furnaces evolve toward larger-scale operations, increased automation, energy efficiency, and environmental sustainability, the demands on their furnace sealing materials are steadily rising. Operators have already recognized the critical importance of these materials, and simply copying or transferring existing solutions no longer meets modern production requirements. Zhengzhou Kexin Furnace Materials Co., Ltd. can develop tailored operational strategies and produce customized products based on key parameters such as equipment operating principles, smelting environments, product characteristics, and specific handling methods—ensuring that customer needs are met more effectively than ever before.

Main channel iron tapping slag line castable

The main trough iron-spill and slag-line castable is a critical refractory material used in the iron-spill area of blast furnace tapping channels, designed to withstand the erosive attack caused by high-temperature molten iron and slag. Its core performance must meet stringent requirements, including excellent resistance to high temperatures (above 1500°C), outstanding erosion resistance, superior slag corrosion resistance, and exceptional thermal shock resistance. Key raw materials include alumina, silicon carbide, carbon-based materials, and pure calcium aluminate cement as a binding agent. This product is manufactured through precise processes such as raw material blending, mixing, shaping, curing, and baking—and is widely employed in steelmaking as well as certain non-ferrous metal smelting applications. Moreover, it is steadily evolving toward higher performance, longer service life, and environmentally friendly practices.

Main channel iron tapping point iron wire casting material

Primarily used for the casting construction of the iron tapping line at the main taphole of blast furnaces, this material effectively reduces material wear caused by molten iron impact, extending the service life of the iron channel and minimizing the risk of molten iron leakage due to damage at the tapping point. This ensures stable iron-discharging operations in blast furnaces. Its core performance meets critical requirements such as high-temperature resistance and erosion resistance, with key raw materials including corundum, silicon carbide, carbon-based materials, and pure calcium aluminate cement as a binding agent.

High-Strength Castable for Main Trench

Primarily used for casting construction in the rear section of the main taphole, this material can withstand the scouring, erosion, and high-temperature impacts caused by molten iron and slag, ensuring the structural stability of the taphole. Its core performance must meet stringent requirements such as high-temperature resistance, excellent abrasion resistance, superior slag erosion resistance, and exceptional thermal shock resistance. Key raw materials include bauxite, corundum, silicon carbide, carbon-based materials, and binding agents like pure calcium aluminate cement.

Lining castable for the furnace hearth

It is an advanced refractory material designed for the integral casting of blast furnace hearths. Thanks to its exceptional self-leveling properties, it enables the seamless filling of intricate structures without the need for vibration, ensuring rapid, efficient, and high-quality construction of the hearth lining. By optimizing both material performance and construction techniques, this solution effectively addresses specific challenges in the furnace’s working environment—such as molten iron erosion, alkali metal attack, and thermal shock—ultimately achieving the dual goals of safe furnace operation and extended equipment lifespan.

Slag skimmer casting material

It is a high-performance refractory material specifically designed for slag skimmers in blast furnace ironmaking yards. Outstanding in terms of erosion resistance, thermal shock resistance, and high-temperature strength, this material effectively extends the service life of slag skimmers and reduces maintenance frequency. As a result, it plays a critical role in ensuring stable and smooth blast furnace operations while boosting overall production efficiency. Key raw materials include corundum, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.

Zhiti Gou Casting Material

This is for the casting construction of the blast furnace branch channels, and its core performance must meet requirements such as high-temperature resistance, erosion resistance, and thermal shock resistance. The main raw materials include bauxite, corundum, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.

Slag Gully Castable

For the casting construction of blast furnace slag troughs, the core performance must meet requirements such as resistance to slag erosion, thermal shock resistance, high-temperature durability, abrasion resistance, and oxidation resistance. Key raw materials include bauxite, corundum, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.

Swing Trough Casting Material

This refers to the casting construction used for the blast furnace swing trough—a channel connecting the main taphole to the torpedo car, designed to divert molten iron via a pivoting mechanism. Due to frequent exposure to molten iron erosion, sudden temperature fluctuations, and continuous mechanical movement in this area, the core performance of the material must meet stringent requirements such as thermal shock resistance, erosion resistance, high-temperature durability, and oxidation resistance. Key raw materials include bauxite, corundum, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.

Iron Trench Hot-Repairs Explosion-Proof Castable

It is a functional refractory material specifically designed for the rapid, hot-state repair of iron tapping channels in blast furnaces. This material strikes an excellent balance between explosion-proof performance, baking efficiency, and erosion resistance, effectively reducing blast furnace downtime and boosting production efficiency. Key raw materials include corundum, bauxite, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.

Permanent Layer Castable

Unshaped refractory materials used as permanent linings for thermal equipment such as blast furnaces and industrial furnaces, these materials exhibit excellent strength, dimensional stability, and long-term performance under high-temperature conditions. Key raw materials include bauxite, silicon carbide, and pure calcium aluminate cement, among others.

Wear-resistant castable for slag discharge channels

This is a high-strength, highly wear-resistant, and acid-erosion-resistant lining material specifically designed for blast furnace slag tapping channels. It is primarily used to withstand the intense scouring and abrasion caused by rapidly flowing granulated slag. Key raw materials include corundum, bauxite, and calcium aluminate cement, among others.

Iron Trench Cover Castable

It is an unshaped refractory material used as a cover plate for hot-metal channels, slag channels, and other thermal equipment in blast furnaces. Primarily, it serves to cover molten iron and slag, provide insulation, and protect the underlying steel structure. Under high-temperature conditions, this material must exhibit excellent thermal shock resistance, insulation properties, and structural strength to prevent cracking or collapse caused by frequent thermal shocks. Key raw materials include corundum, bauxite, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.