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.

Mud-bonded castable

Mud-pack castables are a type of unshaped refractory material used inside the hearth of blast furnaces, offering excellent resistance to erosion and abrasion. They are primarily employed to support the ramming mass that forms a complete mud pack inside the hearth, ensuring smooth iron tapping channels while preventing cracks that could lead to iron leakage.

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.

Prefabricated Iron Gutter Components (Blocks)

Iron trough prefabricates are customized, factory-produced refractory components designed specifically for the demanding conditions of blast furnace iron troughs—channels used to transport molten iron. These preformed elements are made from refractory materials that are shaped in advance at the factory, allowing for direct on-site installation. They serve as critical protective linings within the iron trough, effectively resisting molten iron erosion, high-temperature corrosion, and thermal shock damage. Prefabricated components boast excellent dimensional stability after undergoing high-temperature baking, making them ready for immediate use while minimizing the risk of cracking—commonly caused by improper curing of castable materials during the baking process.

Iron Tuyere Repair Material

This is a functional refractory material specifically designed for the rapid, hot-state repair of iron tapping channels in blast furnaces. It strikes an excellent balance between construction efficiency—particularly its ability to eliminate the need for removing old linings and enabling hot repairs—and the durability of the repaired area, showcasing outstanding resistance to erosion and scouring. As a result, it effectively extends the overall lifespan of the iron channel, playing a critical role in ensuring stable furnace operations and boosting production efficiency. Key raw materials include corundum, bauxite, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.

Slag Channel Non-Baking Ramming Material

Slag trough non-baked ramming material is an unshaped refractory used specifically for the slag trough area of blast furnaces. This material exhibits excellent high-temperature mechanical properties, effectively resisting erosion and scouring from molten slag, while also demonstrating superior thermal shock resistance and minimal post-calcination volume change. During construction, after thoroughly cleaning the slag trough, the material can be directly placed into the trough and firmly compacted by ramming—eliminating the need for pre-baking before use.

Mud-cast prefabricated parts

The mud sleeve prefabricates are refractory components pre-molded from mud-sleeve material, designed primarily for the rapid installation and replacement of blast furnace tap-hole mud sleeves. Produced via an industrialized manufacturing process, these prefabricates transform traditional on-site construction into "assembly-based" operations, offering an efficient solution for refractory maintenance at blast furnace tap holes—especially ideal for smelting environments that prioritize high productivity and minimal downtime. They effectively address issues such as tap-hole spatter and excessive gas flames in the tap-hole area.

Mud-on-mud

Mud sleeve material is a refractory used for constructing or repairing the mud sleeves at blast furnace iron tapping openings. It boasts excellent bonding properties and high strength. Using the ramming device of a mud gun, the material is compacted onto the tap frame to form the mud sleeve, ensuring a tight fit between the gun head and the sleeve during plugging. This prevents mud leakage during the clogging process while simultaneously protecting the refractory lining of the tap opening from high-temperature oxidation and erosion by molten slag and iron.

Iron Mouth Castable

Specifically, the iron tap channel castable is an unshaped refractory material designed for use in blast furnace iron-tap channels. It is primarily employed to construct the tap channel and surrounding refractory structures, which are subjected to conditions such as alternating thermal cycles, significant temperature gradients, and frequent mechanical impacts from opening and closing the tap. This product helps extend the service life of the tap channel, reduces the risk of gas leakage, effectively controls iron spattering, and ensures the continuous and safe operation of the blast furnace's iron-discharging process.

Mud-Set Ramming Material

By compacting and ramming, a strong, dense mud-casing structure is formed, serving the same purpose as mud-casting material.

Mud-mold casting material

The mud sleeve castable is an unshaped refractory material used for constructing and repairing the mud sleeves at blast furnace tapping holes. It is specifically designed to withstand the frequent impact of opening and closing the tap, offering exceptional strength and excellent resistance to erosion. This material is essential for both the fabrication and maintenance of mud sleeves at blast furnace tapping points, helping to minimize mud leakage while ensuring safe and reliable plugging operations.

Inject the slurry

In-furnace repair mortar is an unshaped refractory material used for lining repairs in thermal equipment such as blast furnaces. It is applied by injecting the slurry into cracks or damaged areas using a mud pump, effectively filling, sealing, and restoring the affected zones. This material is characterized by its excellent fluidity, allowing it to penetrate even tiny fissures, while also exhibiting strong adhesion to substrates like refractory bricks and castables. Additionally, it boasts superior resistance to high temperatures and corrosion. Commonly employed for repairing equipment such as blast furnaces, hot-blast stoves, and rotary kilns, this mortar helps extend equipment lifespan and significantly reduces downtime for furnace maintenance and inspections.

Resin-based plugging material

Zhengzhou Kexin Refractory Materials Co., Ltd.'s resin-based ramming mass is manufactured using a proprietary resin binder developed in-house. This product boasts excellent plasticity, smooth application, precise iron tap depth, moderate opening strength, and low consumption per ton of iron produced. It has not only demonstrated outstanding performance in overseas blast furnaces but has also earned high praise from customers using single-tap and continuous-tap blast furnaces domestically—offering exceptional value for money.

Eco-friendly gunning material

This product features a binder and admixtures developed with independent intellectual property rights, ensuring that the anhydrous gunning material produces no harmful substances detrimental to human health during use. Developed by Zhengzhou Kexin Refractory Materials Co., Ltd., this environmentally friendly gunning material boasts domestically leading technology and has been rigorously tested in numerous blast furnaces both domestically and internationally. It not only meets—yet exceeds—Europe’s and America’s stringent environmental standards but also delivers exceptional performance: smooth application, rapid coke-solidification, superior tap-hole quality, high bonding strength, and complete safety for workers’ health.

Vanadium-Titanium Mud

Zhengzhou Kexin Refractory Materials Co., Ltd.'s vanadium-titanium mud contains special, highly effective additives that more effectively protect the refractory materials in the iron tap area during the later stages of blast furnace campaign life, forming a stable mud pack while reducing temperatures in the tap region. This ensures the safe and long-lasting operation of the blast furnace, aligning with industry goals for enhanced durability. The product has been successfully implemented across multiple medium- to large-scale blast furnaces, resulting in a significant increase in the qualification rate of iron taps and a noticeable drop in refractory temperatures within the tap area—providing robust assurance for the safe and reliable operation of these critical systems.