Monolithic Refractories High-Temperature Bonder Cement for Iron and Steel Industry
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TY-AZS33
Shapes and sizes: there are great variety of formats and shapes which are available for different forming and special machine processes.
Application: mainly used for working ends, feeder channel, side walls, superstructures, crowns, sidewalls, tank bottoms, C-shaped brick and doghouse crown.etc.
TY- AZS36
Shapes and sizes: This product is only available for straight brick.
Application:mainly used for side walls of flame furnaces with embedded melter bottoms, for total security with average pulls and campaign lengths, and superstructures, front wall, back wall, top crown in glass melting furnace.
TY- AZS41
Shapes and sizes: this product is available in a large size straight or approximate bricks and special formats and shapes which are available for special machining processes.
Application: Mainly used for sidewalls, doghouses, throat, bottom budding, Dam blocks, electric block corners.
Item | Behaviors | |||
TY-AZS33 | TY-AZS36 | TY-AZS41 | ||
Chemical Composition | Al2O3 | ≥50.00 | ≥49.00 | ≥45.00 |
ZrO2 | ≥32.50 | ≥35.50 | ≥40.50 | |
SiO2 | ≤15.50 | ≤13.50 | ≤13.00 | |
Na2O+K2O | ≤1.30 | ≤1.35 | ≤1.30 | |
Bulk density g/cm3 | ≥3.75 | ≥3.85 | ≥4.00 | |
Apparent Porosity % | ≤1.2 | ≤1.0 | ≤1.2 | |
Cold Crushing Strength Mpa | ≥300 | ≥300 | ≥300 | |
Exudation Temperature of Glass Phase | ≥1400 | ≥1400 | ≥1410 | |
Bubble Separation Ratio(1300°C×10h) | ≤1.5 | ≤1.4 | ≤1.0 | |
Anti-corrosion rate of glass liquid 1500°C×36h (mm/24h)% | ≤1.45 | ≤1.3 | ≤1.2 | |
Apparent density (g/cm3) | PT(RN RC N) | ≥3.45 | ≥3.50 | ≥3.70 |
ZWS(RR EVF EC ENC) | ≥3.60 | ≥3.70 | ≥3.90 | |
WS( RT VF EPIC FVP DCL) | ≥3.70 | ≥3.80 | ≥4.00 | |
- Q:How long is the lifespan of monolithic refractories in iron and steel applications?
- Several factors can influence the lifespan of monolithic refractories in iron and steel applications. These factors encompass the type of refractory material utilized, the specific application, the operational conditions, and the implemented maintenance practices. Monolithic refractories employed in iron and steel applications are generally engineered to endure high temperatures, thermal shock, chemical attack, and mechanical stress. When compared to other refractory materials, they are expected to possess a relatively extended lifespan. Under normal operating conditions and with appropriate maintenance, monolithic refractories can typically endure anywhere from several months to several years in iron and steel applications. Nevertheless, it is important to acknowledge that certain areas of the application may be subjected to more severe conditions, necessitating more frequent repairs or replacements. Regular inspections and monitoring of the refractories' condition are vital in order to detect any signs of deterioration or damage. Any necessary repairs or replacements should be promptly executed to prevent further damage and reduce downtime. It is also noteworthy to mention that advancements in refractory technology and materials have resulted in the development of more resilient and durable monolithic refractories. These advancements have extended the lifespan of refractories in iron and steel applications, ultimately enhancing the overall efficiency and productivity of the operations.
- Q:How do monolithic refractories protect the lining of ladles and tundishes?
- Monolithic refractories protect the lining of ladles and tundishes by forming a strong and durable barrier against high temperatures, chemical reactions, and mechanical stresses. These refractories are designed to be resistant to thermal shock and erosion, ensuring that the lining remains intact and unaffected by the molten metal or slag. They also provide insulation, minimizing heat loss and reducing energy consumption. Overall, monolithic refractories act as a reliable shield, extending the lifespan of the ladles and tundishes and preventing any detrimental effects on the lining.
- Q:How do monolithic refractories improve energy efficiency in the iron and steel industry?
- Monolithic refractories improve energy efficiency in the iron and steel industry by providing better insulation and reducing heat loss. They have lower thermal conductivity compared to traditional refractory bricks, which means less heat is conducted through the lining of the furnaces or kilns. This leads to reduced energy consumption and improved thermal efficiency. Additionally, monolithic refractories offer better resistance to thermal shock, minimizing the need for frequent repairs or replacements, thereby saving energy and reducing downtime.
- Q:What are the challenges in recycling monolithic refractories?
- Recycling monolithic refractories presents several challenges that complicate the process compared to other materials. To begin with, the exceptional resistance of monolithic refractories to high temperatures and harsh conditions makes them difficult to break down and separate. Specialized techniques and equipment are required for this purpose. Furthermore, monolithic refractories often contain various additives and binders, such as clay, cement, and other organic compounds. These additional substances add complexity to the recycling process, as they may need to be removed or separated from the refractory material before effective recycling can take place. Moreover, monolithic refractories are prone to contamination during their service life, with metal oxides, slag, and impurities being common culprits. These contaminants can affect the quality and properties of the recycled refractory material, necessitating thorough cleaning and purification procedures. Additionally, the logistics involved in collecting and transporting monolithic refractories for recycling can be challenging. Given that refractories are typically used in large quantities in industrial settings, their removal and transportation can be costly and time-consuming. Furthermore, finding suitable recycling facilities equipped with the necessary expertise and equipment to handle monolithic refractories can be limited, particularly in certain regions. Lastly, economic factors contribute to the challenges of recycling monolithic refractories. The financial viability of recycling and processing these refractories may not always justify the cost compared to using new materials. Consequently, companies may be discouraged from investing in recycling programs, leading to lower demand for recycled refractory materials. In summary, the challenges associated with recycling monolithic refractories primarily arise from their durability, complex composition, contamination, logistics, and economic considerations. Nonetheless, with technological advancements and increased awareness of the environmental benefits of recycling, these challenges can be overcome, promoting the sustainable reuse of refractory materials.
- Q:What are the common manufacturing processes used for monolithic refractories?
- Monolithic refractories are commonly manufactured using the following processes: 1. Mixing: The initial step involves accurately measuring and combining the raw materials to create a uniform mixture. 2. Wetting: The mixture is then moistened with water or a liquid binder to enhance its workability and plasticity, facilitating shaping and molding. 3. Forming: Various techniques such as casting, gunning, ramming, or extrusion are employed to shape the wet mixture. Casting entails pouring it into a mold, gunning involves spraying it onto a surface, ramming compacts it using a tool, and extrusion forces it through a die to create specific shapes. 4. Drying: The formed monolithic refractory is dried in a controlled environment with specific temperature and humidity conditions to eliminate excess moisture, preventing cracks or warping. 5. Firing: The dried monolithic refractory is then subjected to high temperatures to achieve the desired properties. This process, known as sintering, promotes particle bonding, increasing the material's strength and stability. 6. Finishing: Following the firing process, additional finishing processes like grinding, polishing, or coating may be employed to enhance the surface quality and overall performance of the monolithic refractory. By employing these standard manufacturing procedures, high-quality monolithic refractories with consistent properties and performance characteristics are produced.
- Q:How do monolithic refractories resist chemical corrosion in iron and steel applications?
- Monolithic refractories resist chemical corrosion in iron and steel applications through their inherent properties and composition. They are designed to have high chemical stability and resistance to react with molten metals, slag, and other corrosive substances present in these applications. Additionally, monolithic refractories are usually formulated with specific additives and binders that enhance their resistance to chemical attack. This combination of properties and composition allows them to withstand the aggressive environment of iron and steel applications without significant degradation or corrosion.
- Q:How do monolithic refractories improve the efficiency of ladle and tundish preheaters?
- Monolithic refractories play a crucial role in improving the efficiency of ladle and tundish preheaters through several key mechanisms. Firstly, monolithic refractories provide excellent thermal insulation properties. They have low thermal conductivity, which means they are effective in preventing heat loss from the preheaters. By minimizing heat loss, monolithic refractories ensure that the majority of the heat generated by the preheater is utilized for preheating the ladle or tundish. This results in reduced energy consumption and improved efficiency of the preheating process. Secondly, monolithic refractories offer high thermal shock resistance. Ladle and tundish preheaters are subjected to rapid and extreme temperature changes during operation. The ability of monolithic refractories to withstand these thermal shocks ensures their long-lasting performance, minimizing the need for frequent repairs or replacements. This not only enhances the efficiency of the preheaters but also reduces downtime and maintenance costs. Furthermore, monolithic refractories exhibit excellent mechanical strength and abrasion resistance. The ladle and tundish preheaters experience constant wear and tear due to the movement of ladles or tundishes, and the abrasive nature of the materials being processed. The use of monolithic refractories prevents erosion and damage to the preheaters, ensuring their longevity and optimal functioning. This, in turn, improves the overall efficiency of ladle and tundish preheaters by reducing downtime and maintenance requirements. Lastly, monolithic refractories offer design flexibility. They can be customized and shaped according to the specific requirements of the ladle or tundish preheaters. This allows for better fitting and insulation, maximizing heat transfer efficiency. The ability to tailor the refractory lining to the preheater's design also ensures uniform heating, minimizing temperature variations and improving overall operational efficiency. In summary, the use of monolithic refractories in ladle and tundish preheaters improves efficiency by providing superior thermal insulation, thermal shock resistance, mechanical strength, abrasion resistance, and design flexibility. These properties result in reduced heat loss, minimized downtime, enhanced durability, and optimized heat transfer, ultimately leading to improved efficiency of the preheating process.
- Q:What are the different techniques for installing monolithic refractories?
- Some of the different techniques for installing monolithic refractories include gunning, casting, ramming, and troweling. Gunning involves spraying a mixture of refractory material and water onto the surface using a high-pressure gun. Casting involves pouring the refractory material into a mold and allowing it to harden. Ramming involves manually packing the refractory material into place using a ramming tool. Troweling involves applying the refractory material with a trowel, similar to applying mortar.
- Q:How do monolithic refractories contribute to energy efficiency in the iron and steel industry?
- Monolithic refractories play a crucial role in improving energy efficiency in the iron and steel industry. These refractories are made from a single material and can be easily molded, thereby providing a seamless lining in various high-temperature applications, such as furnaces and kilns. By having a monolithic lining, heat loss is significantly minimized as there are no joints or gaps for heat to escape. This leads to reduced energy consumption and improved overall energy efficiency in the industry. Additionally, monolithic refractories offer better thermal conductivity and insulation properties, enabling better heat transfer and retention within the equipment, further optimizing energy usage.
- Q:How do monolithic refractories withstand high temperatures and thermal cycling?
- Monolithic refractories withstand high temperatures and thermal cycling due to their unique composition and structure. They are made from a single piece or material, which eliminates joints or seams that could be vulnerable to thermal stress. Additionally, they are designed with a high thermal conductivity and low thermal expansion, allowing them to expand and contract without cracking or spalling. This enables them to maintain their integrity and mechanical strength even under extreme temperature fluctuations, making them highly durable and suitable for applications in industries such as steel, cement, and petrochemical.
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Monolithic Refractories High-Temperature Bonder Cement for Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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