Calcined Petroleum Coke 1-5mm FC:98.5%min

Calcined Petroleum Coke 1-5mm FC:98.5%min

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Loading Port:: Shekou

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t

Supply Capability:: 1000 m.t/month

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Packaging Detail:25kg paper bag into 1t weaving bag 5kg, 10kg and 20kg weaving bag into 1t weaving bag 25kg weaving bag put on pallet covered with entanglement wrap product direct into packing bag 25kg paper bag put on pallet covered with entanglement Wrap 25kg weaving bag into 1t weaving bag.

Delivery Details: 7 days

Calcined Petroleum Coke 1-5mm FC:98.5%min

Q:How do monolithic refractories resist chemical attacks from molten metals and slag?: Monolithic refractories are specifically designed to resist chemical attacks from molten metals and slag. They possess several key characteristics that enable them to withstand these aggressive environments. Firstly, monolithic refractories are composed of high-quality materials that have excellent chemical resistance. These materials, such as alumina, magnesia, and chrome, have a high melting point and are stable even when exposed to extreme temperatures and corrosive substances. This chemical stability ensures that the refractory can maintain its integrity and structural strength when in contact with molten metals and slag. Secondly, monolithic refractories have a dense and compact structure. This microstructure helps to prevent the penetration of molten metals and slag into the refractory material. The dense structure acts as a barrier, limiting the contact between the corrosive substances and the refractory. This reduces the chances of chemical reactions and erosion, thereby enhancing the resistance of the refractory to chemical attacks. Furthermore, monolithic refractories often contain additives and binders that enhance their chemical resistance. These additives create a protective layer on the refractory surface, acting as a shield against chemical attacks. They can also react with certain corrosive substances, forming stable compounds that further resist the penetration and corrosion of the refractory material. Additionally, monolithic refractories are designed to have low porosity. This low porosity minimizes the absorption of molten metals and slag, preventing them from infiltrating the refractory and causing damage. By reducing the permeability of the material, the refractory can maintain its structural integrity and resist chemical attacks over prolonged periods. In conclusion, monolithic refractories resist chemical attacks from molten metals and slag through their high-quality materials, dense structure, additives, and low porosity. These combined properties allow the refractories to withstand aggressive environments and maintain their performance and longevity in industrial applications.

Q:What are the latest advancements in monolithic refractories for the iron and steel industry?: One of the latest advancements in monolithic refractories for the iron and steel industry is the development of high-performance castables with enhanced properties. These castables are designed to withstand the extreme temperatures and harsh conditions of iron and steel production processes. One major advancement is the use of advanced bonding systems that provide excellent strength and resistance to thermal shock. These bonding systems, such as nano-bonding technology, help improve the overall performance and durability of monolithic refractories. Another significant development is the introduction of low cement castables. These castables contain a reduced amount of cement, resulting in improved high-temperature strength and erosion resistance. This advancement is particularly beneficial for applications in the iron and steel industry where thermal cycling and mechanical stress are common. Additionally, there have been advancements in the composition of monolithic refractories. The use of advanced raw materials, such as high-quality aggregates and additives, has led to improved thermal conductivity, corrosion resistance, and thermal insulation properties. These developments allow for more efficient and sustainable iron and steel production processes. Furthermore, recent advancements have focused on the development of self-flow castables. These castables have excellent flowability, allowing for easy installation and maintenance of refractory linings. This advancement helps reduce installation time and costs while also ensuring improved lining performance. Overall, the latest advancements in monolithic refractories for the iron and steel industry have resulted in improved performance, durability, and efficiency. These advancements enable the industry to enhance its production processes, reduce downtime, and increase overall productivity.

Q:How are monolithic refractories different from conventional refractories?: Monolithic refractories are different from conventional refractories in that they are composed of a single, continuous structure, whereas conventional refractories are made up of multiple individual bricks or shapes. Monolithic refractories offer greater flexibility in terms of installation, as they can be easily shaped and molded to fit various applications. Additionally, monolithic refractories usually have better thermal shock resistance and are more resistant to cracking, making them more durable and long-lasting compared to conventional refractories.

Q:How do monolithic refractories resist chemical corrosion in iron and steel applications?: Due to their unique characteristics and composition, monolithic refractories demonstrate high resistance to chemical corrosion in iron and steel applications. This resistance is attributed to various factors. One crucial factor is the utilization of top-notch raw materials. Typically, monolithic refractories are crafted from high-alumina or alumina-silica aggregates, which possess excellent resistance to chemical reactions. These aggregates are carefully selected to withstand the harsh conditions encountered in iron and steel applications, including exposure to molten metal, slag, and various chemical compounds. Furthermore, the binders employed in monolithic refractories play a vital role in their resistance to chemical corrosion. Common binders encompass clay, calcium aluminate cement, or colloidal silica. These binders not only hold the refractory materials together but also provide extra protection against chemical attack. They create a dense and impermeable structure, preventing corrosive substances from penetrating the refractory lining. Additionally, monolithic refractories often incorporate additives that enhance their chemical resistance. These additives, comprising antioxidants, anti-spalling agents, and various compounds, further safeguard the refractory lining from chemical attack. They neutralize corrosive elements, inhibit the formation of harmful compounds, and reduce the overall corrosion rate. Moreover, the unique installation method of monolithic refractories also contributes to their resistance to chemical corrosion. Unlike traditional brick refractories, monolithic refractories are installed as a single, continuous lining. This eradicates the need for joints or gaps that could potentially serve as weak points for chemical penetration. The monolithic nature of these refractories ensures a tight and seamless lining, reducing vulnerability to chemical attack. In summary, the combination of high-quality raw materials, effective binders, and beneficial additives, along with the monolithic installation technique, endows monolithic refractories with exceptional resistance to chemical corrosion in iron and steel applications. This resistance enables them to endure the harsh conditions encountered in these industries, ensuring the durability and efficiency of the refractory lining.

Q:What are the specific requirements of monolithic refractories for soaking pit applications?: Monolithic refractories for soaking pit applications must meet several specific requirements. Firstly, they need to withstand high temperatures and thermal cycling. This means they must be able to endure temperatures exceeding 1500 degrees Celsius without significant degradation. The longevity and durability of the refractories depend on this capability. Secondly, the refractories must have good thermal shock resistance. Since soaking pits often experience rapid changes in temperature, the refractories must be able to handle these fluctuations without cracking or spalling. This is vital to maintain the refractories' integrity. Chemical attacks are another concern in soaking pit applications. Molten metal, slag, and other corrosive substances are present, so the refractories must have excellent chemical resistance. This prevents erosion and chemical reactions. Withstanding the corrosive effects of molten metal and slag, as well as potential chemical reactions, is crucial. Furthermore, mechanical stresses, such as abrasion and impact, occur in soaking pits due to the movement and handling of metal ingots. The monolithic refractories should possess good mechanical strength and abrasion resistance to withstand these stresses. They should be able to resist wear and tear caused by heavy loads and avoid any mechanical failure. Lastly, the refractories used in soaking pits should be easy to work with and install. This ensures efficient and effective lining of the pit, minimizing any gaps or cracks that could lead to heat loss or chemical penetration. In summary, monolithic refractories for soaking pit applications must meet specific requirements regarding high temperature resistance, thermal shock resistance, chemical resistance, mechanical strength, and ease of installation. Fulfilling these requirements guarantees that the refractories can withstand the harsh conditions of soaking pits and maintain their performance and integrity over an extended period.

Q:What are the key factors affecting the installation and curing of monolithic refractories?: The installation and curing of monolithic refractories can be affected by several important factors: 1. Material selection: Choosing the right monolithic refractory material is crucial as it determines how it will be installed and cured. Different materials have different requirements, so it is important to select the appropriate material for the specific application. 2. Surface preparation: Properly preparing the surface is essential for the successful installation and curing of monolithic refractories. The surface must be clean, free from contaminants, and properly roughened to ensure good adhesion of the refractory material. 3. Mixing and proportioning: How the refractory material is mixed and proportioned plays a significant role in its installation and curing. Following the manufacturer's instructions for mixing ratios and ensuring thorough mixing is important to achieve a uniform mixture. 4. Application technique: The technique used to apply the monolithic refractory material can greatly impact its installation and curing. Employing proper application techniques, such as gunning, casting, or ramming, is necessary to ensure uniformity and proper bonding with the substrate. 5. Temperature control: Controlling the temperature during installation and curing is critical for achieving the desired properties in the monolithic refractory. The curing process should be carried out at the recommended temperature, and sudden temperature changes should be avoided to prevent thermal stresses. 6. Moisture content: The moisture content of the refractory material and the surrounding environment can affect its installation and curing. Excessive moisture can cause shrinkage, cracking, or poor bonding, while insufficient moisture can hinder proper curing. Maintaining the optimum moisture content for the specific refractory material is important. 7. Curing time: The required curing time for monolithic refractories varies depending on the material and application. It is crucial to follow the recommended curing time to allow for proper strength development and dimensional stability. 8. Environmental conditions: Environmental factors, such as humidity, temperature, and air circulation, can influence the installation and curing of monolithic refractories. It is important to maintain suitable environmental conditions to facilitate proper drying and curing. In conclusion, understanding and addressing these key factors are essential to ensure the successful installation and curing of monolithic refractories, leading to improved performance and longevity of the refractory lining.

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 structure. They are made from a single, continuous material, which eliminates the presence of joints or seams that could weaken the refractory's integrity. This monolithic nature allows for better thermal conductivity and reduced heat transfer, enabling the material to withstand extreme temperatures without cracking or breaking. Additionally, monolithic refractories possess high thermal shock resistance, meaning they can withstand rapid temperature changes without experiencing significant damage. This resilience is achieved through the use of additives and bonding agents that enhance the material's ability to expand and contract uniformly, minimizing the risk of thermal shock-induced fractures. Overall, the cohesive design and specialized components of monolithic refractories enable them to endure high temperatures and thermal shocks more effectively than other refractory materials.

Q:What are the advantages of using monolithic refractories in electric arc furnaces?: There are several advantages to using monolithic refractories in electric arc furnaces. Firstly, monolithic refractories offer excellent thermal shock resistance. Electric arc furnaces operate at extremely high temperatures, and the refractory lining is constantly exposed to rapid temperature changes. Monolithic refractories are able to withstand this thermal cycling without cracking or deteriorating, ensuring the longevity and efficiency of the furnace. Secondly, monolithic refractories have superior corrosion resistance. Electric arc furnaces often use aggressive slag compositions, which can corrode and erode traditional brick linings. Monolithic refractories, on the other hand, are specifically designed to resist chemical attack, providing long-lasting protection against the corrosive effects of molten metal and slag. Additionally, monolithic refractories offer great flexibility in terms of installation. Unlike brick linings, which require extensive labor and time to construct, monolithic refractories can be easily applied as a liquid or paste, allowing for faster and more efficient installation. This not only reduces downtime during furnace maintenance or repairs but also provides the opportunity for customized linings to be easily created to suit specific furnace designs. Moreover, monolithic refractories have excellent thermal conductivity. This property allows for efficient heat transfer within the electric arc furnace, ensuring optimal energy use and minimizing heat losses. This improved thermal efficiency results in reduced operating costs and increased productivity. Furthermore, monolithic refractories have a high refractoriness, meaning they can withstand extremely high temperatures without deformation or failure. This is crucial for electric arc furnaces, which operate at temperatures exceeding 3000°C. The ability of monolithic refractories to maintain their structural integrity at such extreme temperatures ensures the safe and efficient operation of the furnace. In conclusion, the advantages of using monolithic refractories in electric arc furnaces include their thermal shock resistance, corrosion resistance, ease of installation, high thermal conductivity, and exceptional refractoriness. These properties contribute to improved furnace performance, increased productivity, reduced operating costs, and extended furnace life.

Q:How do monolithic refractories improve the performance of ladles and tundishes?: Monolithic refractories improve the performance of ladles and tundishes by providing superior thermal insulation, high mechanical strength, and resistance to chemical attacks and thermal shocks. These qualities enhance the overall durability and longevity of the ladles and tundishes, reducing the need for frequent repairs or replacements. Additionally, monolithic refractories offer better flow properties, facilitating smooth and efficient pouring of molten metal, while minimizing the risk of slag or metal infiltration. Overall, the use of monolithic refractories improves the efficiency, productivity, and cost-effectiveness of ladles and tundishes in various industrial applications.

Q:What are the different types of monolithic refractories used in the iron and steel industry?: There are several types of monolithic refractories used in the iron and steel industry, including castables, ramming mixes, gunning mixes, and plastic refractories. Castables are a mixture of refractory aggregates, binders, and additives that can be poured and shaped into various forms. Ramming mixes are granular refractories that can be packed and tamped into place using a ramming tool. Gunning mixes are similar to ramming mixes but are applied using a gunning machine. Plastic refractories are moldable materials that can be shaped and installed by hand. These different types of monolithic refractories offer flexibility and ease of installation in various applications within the iron and steel industry.

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