Monolithic High Duty Castable Refractories for Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 kg
- Supply Capability:
- 3000000 kg/month
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High Duty Castable For Fireplace and Industrial Furnace Cement Industry
Product Description:
High duty castable is manufactured according to international standards. The product is famous for its excellent abrasion resistance and low thermal conductivity. Further, these can be provided in different specifications as required by the clients. The High duty castables are used high purity raw materials and additives as the main material, and made of under superfine powder adding technology.
Product Advantages:
The material has excellent structural stability and air tightness, and has high physical and chemical properties, also has a fine working ability.They should be used with the same material products.
Product Applications:
For feature of High duty castable, they have excellent abrasion resistance, thermal shock resistance, high-temperature resistance, anti-corrode and have high intensity.
Designed for refractory lining of blast furnace iron and slag runners, skimmers and soon
They can be used in troughs of small and mid size BFs and in all positions of the troughs where fast tapping is required.
Product Specifications:
FAQ:
1. How you can control your quality?
For each production processing, we have complete QC system for the chemical composition
and Physical properties. After production, all the goods will be tested, and the quality certificate
will be shipped along with goods.
2. What's your delivery time?
It usually needs about 20days- 45 days after receiving the deposit.
3. Do you provide free samples?
Yes, we can provide a free sample for testing, If we have sample in stock,
The quantity based on the material type, The buyer should bear all the shipping costs.
4. What's your payment terms?
We can accept 30% deposit, 70% balance before shipment for ordrs over $ 2000.
5. Can we visit your Company?
Yes, certainly. You are very welcome to China and we will be honored to have a customer and friend.
Product Picture:
- Q:How are monolithic refractories different from traditional refractories?
- Monolithic refractories differ from traditional refractories in their composition and installation process. Unlike traditional refractories, which are made from pre-formed bricks or shapes, monolithic refractories are produced as a single, homogeneous mass. This allows for easier and faster installation, as they can be poured or gunned into place. Monolithic refractories also exhibit better thermal shock resistance, higher strength, and improved resistance to chemical attacks, making them a preferred choice in many industrial applications.
- Q:How do monolithic refractories provide thermal insulation in the iron and steel industry?
- Monolithic refractories provide thermal insulation in the iron and steel industry by forming a protective barrier that minimizes heat transfer. They have low thermal conductivity, preventing the rapid transfer of heat from the hot environment to the cooler surroundings. This insulation property helps to maintain high temperatures within furnaces and other equipment, ensuring efficient and consistent heat distribution for the iron and steel production processes.
- Q:What are the main factors affecting the thermal conductivity of monolithic refractories?
- The thermal conductivity of monolithic refractories is affected by various factors. These include the composition of the refractory material, the density of the material, the porosity of the material, and the presence of any additives or impurities. The composition of the refractory material plays a significant role in determining its thermal conductivity. Different types of refractory materials, such as alumina-based, silica-based, or magnesia-based, exhibit different thermal conductivities due to their distinct chemical compositions. Materials with higher alumina content generally display higher thermal conductivities compared to those with higher silica content. The density of the refractory material also impacts its thermal conductivity. Materials with higher densities generally exhibit higher thermal conductivities because the closely packed particles enable more efficient heat transfer. Conversely, materials with lower densities tend to have lower thermal conductivities as the presence of air pockets or voids hinders heat transfer. Another crucial factor is the porosity of the refractory material. Porosity refers to the presence of small pores or spaces within the material. Higher porosity leads to lower thermal conductivity as the air or gas trapped within the pores acts as an insulator, reducing the material's ability to conduct heat. Therefore, materials with lower porosity tend to have higher thermal conductivities. The presence of additives or impurities in the refractory material also affects its thermal conductivity. Certain additives or impurities, such as carbon or metallic oxides, can either enhance or inhibit heat transfer in the material. For example, the addition of carbon can increase thermal conductivity due to its high thermal conductivity, while the presence of metallic oxides may decrease thermal conductivity due to their lower thermal conductivities. In conclusion, the thermal conductivity of monolithic refractories is influenced by factors such as composition, density, porosity, and the presence of additives or impurities. Understanding and controlling these factors are crucial in designing and selecting refractory materials with optimal thermal conductivity for specific applications.
- Q:How do monolithic refractories resist corrosion and erosion in iron and steel applications?
- Monolithic refractories, unlike traditional refractory bricks, consist of a single, homogeneous material and are highly resilient and effective in combating corrosion and erosion in iron and steel applications. Their monolithic nature provides several advantages when it comes to corrosion and erosion resistance. One key advantage is their low porosity, which prevents corrosive agents like molten metal or slag from infiltrating the refractory structure. By minimizing interconnected pores, monolithic refractories significantly reduce the likelihood of chemical reactions that cause corrosion. Moreover, monolithic refractories exhibit excellent resistance to thermal shock, a common issue in iron and steel applications due to rapid temperature changes. Their high thermal conductivity and low thermal expansion enable them to withstand thermal shock without compromising their integrity. This characteristic allows them to resist erosion caused by the flow of molten metal or slag. Additionally, monolithic refractories are highly durable and possess good mechanical strength, enabling them to withstand the abrasive forces often encountered in iron and steel applications. The intense mechanical impact, vibrations, and abrasive wear experienced in these environments can be effectively resisted by monolithic refractories, ensuring their longevity and reliability. In conclusion, monolithic refractories are the preferred choice for lining furnaces, ladles, and other equipment used in the production of iron and steel due to their resistance to corrosion and erosion. Their low porosity, excellent resistance to thermal shock, and high mechanical strength make them an ideal option for these demanding applications.
- Q:What are the typical compositions of monolithic refractories?
- Typically, monolithic refractories consist of a combination of aggregates, binders, and additives. Aggregates, such as alumina, magnesia, or silicon carbide, provide the main refractory properties and are chosen based on the desired characteristics of the refractory, such as resistance to high temperatures, thermal shock, or chemical attack. To bind the aggregates together and give the refractory its shape and strength, binders are used. Common binders include clay, calcium aluminate cement, or colloidal silica. The binder also impacts the overall performance of the refractory, affecting properties like thermal conductivity and chemical resistance. Additives are often included in the composition of monolithic refractories to improve specific properties or facilitate the processing. These additives can be plasticizers, which enhance workability and make installation easier, or antioxidants, which enhance the refractory's resistance to oxidation. Ultimately, the specific composition of a monolithic refractory can vary depending on the intended application and desired performance characteristics. Different combinations of aggregates, binders, and additives can be customized to meet specific temperature ranges, chemical environments, or mechanical stresses.
- Q:What are the challenges in recycling and disposing of monolithic refractories?
- In order to minimize the environmental impact and maximize resource efficiency, several challenges must be overcome when recycling and disposing of monolithic refractories. One significant challenge lies in the handling and transportation of these refractories due to their heavy and bulky nature. Since they are commonly used in high-temperature applications, dismantling and removing them from equipment can be difficult. The weight and size of monolithic refractories make transportation to recycling or disposal facilities a challenge, requiring specialized equipment and infrastructure. Another obstacle is the heterogeneity of monolithic refractories, which often contain various types of refractory materials, binders, and additives. This complexity makes it challenging to separate and categorize the different components for effective recycling. The lack of standardized recycling processes for monolithic refractories further complicates recycling efforts. Moreover, the high melting points of refractory materials used in monolithic refractories make conventional recycling methods, such as melting and remolding, energy-intensive and costly. It is necessary to explore and optimize alternative recycling methods like thermal treatment or chemical processing to make the recycling process more economically and environmentally viable. Proper disposal of monolithic refractories is also a challenge. If not recycled, these materials often end up in landfills, occupying valuable space and potentially releasing harmful substances into the environment. Landfilling refractories can also pose contamination risks if not managed correctly or if hazardous additives are present. To address these challenges, it is crucial to invest in research and development to create more efficient and cost-effective recycling technologies for monolithic refractories. Collaboration between manufacturers, recycling facilities, and regulatory bodies is also essential to establish guidelines and standards for recycling and disposal. Additionally, educating industries and end-users about the importance of recycling and the availability of recycling options can help increase the demand and feasibility of recycling monolithic refractories.
- Q:How do monolithic refractories withstand high temperatures and thermal shocks?
- Monolithic refractories are able to withstand high temperatures and thermal shocks due to their unique composition and design. These refractories are made from a single piece or structure, hence the term "monolithic". This structural integrity allows them to resist the extreme heat and sudden temperature changes experienced in high-temperature applications. One key factor that enables monolithic refractories to withstand high temperatures is the use of high-quality raw materials. These materials are carefully selected for their ability to withstand heat and thermal stress. Common components include silica, alumina, magnesia, and other refractory minerals with high melting points. Additionally, the manufacturing process plays a crucial role in enhancing the thermal resistance of monolithic refractories. The raw materials are mixed with binders, such as clay or cement, to form a homogenous mixture. This mixture is then shaped and installed in its final position, either by pouring or gunning, depending on the application. The binder ensures that the refractory maintains its shape and integrity during thermal cycling. Furthermore, monolithic refractories possess excellent thermal conductivity and low thermal expansion properties. This means that they can efficiently transfer and dissipate heat, minimizing the risk of thermal stress and cracking. The low thermal expansion also reduces the likelihood of spalling or delamination, which is crucial for withstanding thermal shocks. Another factor contributing to the high-temperature resistance of monolithic refractories is their ability to form a protective layer or slag at the surface. This layer acts as a barrier, preventing the refractory from direct contact with corrosive materials or aggressive atmospheres. It helps to improve the refractory's longevity and resistance to thermal shocks. Overall, the combination of high-quality raw materials, careful manufacturing techniques, and beneficial thermal properties enables monolithic refractories to withstand high temperatures and thermal shocks. These refractories are widely used in various industries, including steel, cement, glass, and petrochemical, where they serve as reliable linings in furnaces, kilns, and other high-temperature equipment.
- Q:How do monolithic refractories improve the durability of furnace linings?
- The durability of furnace linings is significantly enhanced by the unique characteristics and properties of monolithic refractories. Unlike traditional brick refractories, which are made up of individual bricks or tiles, monolithic refractories consist of a single, homogeneous structure. A key advantage of monolithic refractories is their ability to eliminate joints and seams, which are weak points in traditional brick refractories. These joints can lead to cracks and failures due to thermal expansion and contraction. In contrast, monolithic refractories are poured or gunned into place, creating a seamless lining that minimizes the potential for cracks. This seamless structure increases the durability of the lining and reduces its susceptibility to thermal stress. In addition, monolithic refractories exhibit excellent thermal shock resistance, which is crucial for furnace linings that experience rapid and extreme temperature changes. The monolithic structure allows for better heat transfer and distribution, preventing localized hotspots that can cause thermal shock and lining failure. This enhanced thermal shock resistance enables the furnace lining to withstand repeated heating and cooling cycles without significant damage, thus improving its overall durability. Furthermore, monolithic refractories offer superior resistance to erosion and corrosion. Furnace linings are often exposed to harsh chemicals, molten metals, and abrasive materials, which can cause erosion and corrosion over time. Monolithic refractories are specifically designed to resist these corrosive agents, protecting the lining from chemical attacks and physical wear. This resistance ensures a longer lifespan for the furnace lining and reduces the need for frequent repairs or replacements. Moreover, monolithic refractories possess better insulation properties compared to traditional brick refractories. They have lower thermal conductivity, meaning that heat transfer through the lining is minimized. This insulation property helps to maintain a more stable and uniform temperature within the furnace, reducing thermal stress on the lining and contributing to its longevity. To summarize, monolithic refractories enhance the durability of furnace linings by eliminating joints and seams, improving thermal shock resistance, providing erosion and corrosion resistance, and offering superior insulation properties. These materials are specifically engineered to withstand the extreme conditions inside furnaces, ensuring a longer lifespan for the lining and reducing maintenance costs in the long term.
- Q:What are the recommended curing and drying procedures for monolithic refractories?
- The curing and drying procedures for monolithic refractories vary depending on the specific type and composition of the material. However, there are some general guidelines that can be followed. Curing involves allowing the refractory material to set and harden. This is achieved by subjecting the material to controlled temperature and humidity conditions. The purpose of curing is to develop the desired physical and chemical properties of the refractory, such as strength and resistance to thermal shock. Drying, on the other hand, involves removing moisture from the refractory material. This is important because moisture can cause cracking or spalling when exposed to high temperatures. Drying usually takes place after the curing process. The curing and drying procedures for monolithic refractories typically involve the following steps: 1. Preheating: Before applying the refractory material, it is necessary to preheat the surface where it will be applied. This prevents rapid moisture evaporation and ensures good adhesion of the refractory. 2. Mixing and application: The refractory material should be mixed according to the manufacturer's instructions and applied to the desired surface using appropriate techniques such as gunning, casting, or ramming. 3. Initial curing: After application, the refractory should be cured at a controlled temperature and humidity for a specific duration. This allows the material to set and strengthen. The curing temperature and duration may vary depending on the specific refractory material, but it is advisable to start with a lower temperature and gradually increase it. 4. Drying: Once the initial curing is complete, the refractory should be dried to eliminate any remaining moisture. This is done by gradually increasing the temperature in a controlled manner. The drying temperature and duration may vary depending on the specific refractory material, but it is important to avoid rapid temperature changes to prevent thermal stress and cracking. 5. Final curing: After drying, the refractory should be allowed to cool gradually to room temperature. This final curing step further enhances the strength and stability of the refractory. It is crucial to follow the manufacturer's guidelines and recommendations for the specific refractory material being used, as different materials may have different curing and drying requirements. Additionally, factors such as the size and shape of the refractory installation, as well as the surrounding environment, may also affect the curing and drying procedures. It is always advisable to consult with a refractory specialist or manufacturer to ensure the proper curing and drying procedures are followed for optimal performance and longevity of the monolithic refractories.
- Q:How do monolithic refractories withstand the chemical attacks in copper smelting applications?
- Monolithic refractories have the ability to withstand chemical attacks in copper smelting applications due to their unique properties and composition. These refractories are specifically designed to resist the harsh and corrosive environment found in copper smelting processes. Firstly, monolithic refractories are made from high-quality materials such as alumina, silica, and magnesia, which have high melting points and are chemically stable. These materials are carefully selected to ensure they can withstand the corrosive effects of copper smelting, such as the presence of sulfur compounds and acidic gases. The refractory's composition also includes various additives and bonding agents that enhance its resistance to chemical attacks. Additionally, monolithic refractories have excellent thermal shock resistance, meaning they can withstand rapid temperature changes without cracking or spalling. In copper smelting applications, the extreme temperatures involved can cause thermal stress on the refractory lining. The refractories' ability to withstand these temperature fluctuations is crucial in preventing the formation of cracks and ensuring their long-term performance. Furthermore, monolithic refractories have a dense and compact structure, which provides an effective barrier against the penetration of molten copper and other corrosive substances. This dense structure prevents the chemical attacks from penetrating the refractory lining, thus ensuring its durability and longevity. Moreover, monolithic refractories offer superior erosion resistance, which is essential in copper smelting applications where high-velocity gases and molten metal flows can cause erosion of the refractory lining. The refractory's erosion resistance prevents the degradation of the lining and maintains its structural integrity. Overall, monolithic refractories are specially designed to withstand the chemical attacks encountered in copper smelting applications. By utilizing high-quality materials, incorporating additives, and possessing excellent thermal shock resistance, density, and erosion resistance, these refractories provide a reliable and durable lining that can withstand the harsh conditions of copper smelting processes.
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Monolithic High Duty Castable Refractories for Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 kg
- Supply Capability:
- 3000000 kg/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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