Calcined Petroleum Coke as Carbon Raiser for Monolithic Refractories in Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t
- Supply Capability:
- 1000 m.t/month
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Factory Background
The factory is majorly running and operating carbon additive (pitch coke, calcined petroleum coke and anthracite), low nitrogen carbon additive, and brake pad making material. Company is the long term supplier of Sinosteel Corporation, Shanghai Carbon Corporation, the plant of SGL Group the Carbon Company in China and some largest special carbon products producing plants.
YUAI also supplies huge amout of high quality carbon additive and graphite carbon additive to steel plants, foundries and ferrotungsten plants. YUAI has been assigned by BAO STEEL as the only organization for processing pitch coke for export purpose. The group’s major products are constantly exported to Japan, Korea, Malaysia, South East Asia countries, Europe and America, which receive praises by our consumers.
The group has invested numbers of calcinators in Anhui China to ensure the capability of producing and processing huge amount of carbon additive. Further investment is on process. According to the orders from customers, YUAI is able to processing and providing different specifications of carbon additive and other products. To provide best quality of products and to offer customers most satisfied service is YUAI’s operating objectives.
Calcined Petroleum Coke
FC:98.5%min,
S:0.5%max
A:0.8%max
V:0.7%max
Mositure:0.5%max
Size:1-5mm
This product is mainly used in steel-making and foundry. Calcined Petroleum Coke
Calcined Petroleum Coke comes from delayed coke which extracted from oil refinery. Although Calcined Petroleum Coke contains a little bit higher level of sulfur and nitrogen than pitch coke, the price advantage still makes it widely used during steel-making and founding as a kind of carbon additive/carburant.
Technology:
Laborary Equpment
In our lab,we has a high precision balance,mullfe furnace,sample making machine, dring box,sulfur measurement instrument and other calibratiing equipments.As a result,before deliverung to our customers,our products have to pass a strict test to ensure the quality and components.The testing reports will be sent to our customers to confirm untill they satisfy with it.
Packaging & Delivery
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
- Q: How does the composition of monolithic refractories impact their performance?
- The composition of monolithic refractories plays a crucial role in determining their performance. Monolithic refractories are essentially unshaped refractory materials that are used to line furnaces, kilns, and other high-temperature equipment. They are preferred over traditional brick and mortar refractories due to their ease of installation and ability to conform to complex shapes. The composition of monolithic refractories includes various components such as aggregates, binders, and additives. The type and proportion of these constituents significantly influence the physical, mechanical, and thermal properties of the refractory material. Aggregates are the major component of monolithic refractories and provide the structural integrity. They can be made of various materials like alumina, silica, magnesia, and carbon. Each aggregate has its own unique properties that determine the refractory's resistance to heat, chemical attack, and mechanical stress. For example, alumina aggregates offer excellent resistance to high temperatures and chemical corrosion, while carbon-based aggregates are preferred for their high thermal conductivity. Binders are added to the mix to provide cohesion and improve the refractory's strength. Common binders include clay, calcium aluminate cement, and colloidal silica. The selection of binders depends on the desired strength, workability, and setting time of the refractory material. Additives are incorporated in the composition to enhance specific properties. They can improve the refractory's resistance to thermal shock, abrasion, or chemical attack. Additives like zirconium oxide, silicon carbide, and graphite are often used to enhance the performance of monolithic refractories in specific applications. The proper combination and proportion of these constituents are crucial for achieving the desired performance of monolithic refractories. The composition affects the refractory's thermal conductivity, thermal expansion, density, porosity, and chemical resistance. For instance, a higher alumina content would improve the refractory's resistance to high temperatures and chemical corrosion, while a higher silica content would enhance its insulating properties. In conclusion, the composition of monolithic refractories has a significant impact on their performance. The selection of aggregates, binders, and additives must be carefully considered to achieve the desired properties and ensure optimal performance in specific high-temperature applications.
- Q: What are the advantages of using insulating castables in the iron and steel industry?
- The advantages of using insulating castables in the iron and steel industry are numerous. Firstly, insulating castables have excellent thermal insulation properties, which help to reduce heat loss during the manufacturing process. This leads to increased energy efficiency and cost savings for the industry. Additionally, insulating castables have a low thermal conductivity, meaning they can withstand high temperatures without transferring excessive heat. This is crucial in the iron and steel industry, where temperatures can reach extremely high levels. By using insulating castables, the industry can ensure the longevity and durability of its equipment and structures. Furthermore, insulating castables have good resistance to thermal shock, meaning they can withstand rapid temperature changes without cracking or breaking. This is particularly beneficial in the iron and steel industry, where the heating and cooling processes are frequent and intense. Lastly, insulating castables have a low density, making them lightweight and easier to handle and install. This not only saves time and effort during installation but also reduces the structural load on equipment and structures. Overall, the use of insulating castables in the iron and steel industry offers advantages such as improved energy efficiency, enhanced durability, resistance to thermal shock, and ease of installation.
- Q: What are the typical operating temperatures for monolithic refractories?
- The specific composition and type of refractory material determine the typical operating temperatures for monolithic refractories. Generally, these refractories are designed to endure high temperatures ranging from 1500°C (2732°F) to 1800°C (3272°F) and sometimes even higher. Industries such as steelmaking, cement production, glass manufacturing, and petrochemical processing commonly utilize these refractories, subjecting them to extreme thermal conditions. Temperature limits vary for different types of monolithic refractories. For example, basic refractories made of magnesia or dolomite can withstand temperatures up to 1800°C (3272°F). Conversely, alumina-based refractories typically handle temperatures up to 1700°C (3092°F). Silicon carbide-based refractories exhibit even higher temperature resistance, with the capacity to endure temperatures exceeding 2000°C (3632°F). Choosing the appropriate monolithic refractory material is crucial, considering the specific operating temperature requirements of the application. Using refractories beyond their recommended temperature limits may result in thermal shock, spalling, reduced performance, equipment failure, or safety hazards. Therefore, it is essential to consult with refractory manufacturers or experts in the field to ensure the correct selection and optimal performance of monolithic refractories in high-temperature applications.
- Q: How do monolithic refractories resist high temperatures?
- Monolithic refractories, with their unique composition and structure, are specifically designed to withstand high temperatures. Unlike traditional refractory bricks, which are made up of multiple pieces, these refractories are created from a single material or piece. The primary factor contributing to the high temperature resistance of monolithic refractories is their elevated melting point. Materials such as alumina, silica, and magnesia, which have melting points ranging from 1650°C to 2000°C, are utilized in their production. This characteristic allows the refractories to endure extreme temperatures without experiencing significant deformation or melting. Moreover, monolithic refractories possess exceptional thermal stability. They exhibit low thermal conductivity, enabling them to effectively insulate against heat transfer. As a result, these refractories can maintain their structural integrity even when exposed to rapid temperature changes or thermal shocks. Furthermore, the monolithic nature of these refractories grants them enhanced resistance to thermal stress. Unlike traditional refractory bricks, they lack joints or seams that are susceptible to thermal expansion and contraction. Consequently, they exhibit greater resistance to cracking or spalling when subjected to high temperatures. Additionally, monolithic refractories have the ability to develop a protective layer or slag on their surface when exposed to elevated temperatures. This slag acts as a barrier, preventing direct contact between the refractory material and the hot gases or molten metals. Consequently, the risk of chemical reactions or corrosion is reduced. In conclusion, the combination of high melting point, thermal stability, resistance to thermal stress, and the capacity to form a protective slag makes monolithic refractories highly effective in withstanding high temperatures. They find wide applications in various industries, including steel, cement, glass, and petrochemical, where they encounter extreme heat conditions.
- 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 thermal cycling in the iron and steel industry?
- Monolithic refractories, with their unique composition and properties, are designed to endure thermal cycling in the iron and steel industry. Unlike traditional refractory bricks that are stacked together, these refractories are made from a single, continuous material. One of the reasons monolithic refractories are capable of withstanding thermal cycling is their ability to expand and contract without any cracking or damage. This is because of their high thermal shock resistance, which measures their capacity to endure rapid temperature changes. Monolithic refractories are specifically formulated to possess low thermal conductivity, enabling them to resist heat transfer and minimize thermal gradients within the material. Additionally, monolithic refractories exhibit exceptional thermal stability, meaning they can maintain their structural integrity and mechanical strength even at high temperatures. This is critical in the iron and steel industry, where temperatures can reach extreme levels. These refractories are able to endure repeated heating and cooling cycles without experiencing significant structural alterations or degradation. Moreover, monolithic refractories possess good corrosion resistance, which is crucial in an environment where they come into contact with molten metal and various chemical agents. Their composition and special additives aid in safeguarding the refractory material from chemical attack, preventing erosion and extending their lifespan. The manufacturing process of monolithic refractories allows for effortless installation and repair, as they can be applied as a liquid or a semi-liquid mixture. This reduces the risk of joints or weak points that could lead to thermal stress or failure during thermal cycling. Overall, the combination of high thermal shock resistance, low thermal conductivity, excellent thermal stability, corrosion resistance, and easy installation makes monolithic refractories highly durable and capable of enduring the severe thermal cycling conditions present in the iron and steel industry.
- 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: What are the main factors affecting the abrasion resistance of monolithic refractories?
- The main factors affecting the abrasion resistance of monolithic refractories can be categorized into three key aspects: material composition, microstructure, and service conditions. Firstly, material composition plays a crucial role in determining the abrasion resistance of monolithic refractories. The choice of raw materials, such as aggregates and binders, directly influences the overall hardness, strength, and wear resistance of the refractory. For instance, high-alumina refractories, which contain a high percentage of alumina as the main component, tend to exhibit excellent abrasion resistance due to the hardness and toughness of alumina. Conversely, refractories with a high proportion of softer materials like clay or magnesia may have lower abrasion resistance. Secondly, the microstructure of monolithic refractories greatly affects their ability to withstand abrasion. The distribution and orientation of aggregates, as well as the bond strength between the particles and the matrix, play significant roles in determining the resistance to wear. A well-distributed and interconnected network of aggregates can enhance the refractory's strength and resistance to abrasion. Additionally, a dense and well-sintered matrix can inhibit the penetration of abrasive particles, thereby reducing wear. Lastly, the service conditions in which the monolithic refractories are exposed to are crucial factors in determining their abrasion resistance. Factors such as temperature, atmosphere, and mechanical stress can significantly impact the wear behavior of refractories. High temperatures can cause thermal expansion and contraction, leading to cracks and spalling, which can accelerate abrasion. The presence of corrosive gases or chemicals can also deteriorate the refractory's microstructure, reducing its resistance to wear. Furthermore, mechanical stress from impact or friction can cause localized wear and damage the refractory. In conclusion, the main factors affecting the abrasion resistance of monolithic refractories include material composition, microstructure, and service conditions. By carefully selecting the appropriate raw materials, optimizing the microstructure, and considering the specific service conditions, it is possible to enhance the abrasion resistance of monolithic refractories and improve their overall performance in high-wear applications.
- Q: How do monolithic refractories improve the performance of ladles and tundishes?
- Monolithic refractories play a crucial role in improving the performance of ladles and tundishes in various ways. Firstly, they enhance the thermal insulation properties of these vessels. Ladles and tundishes are exposed to extremely high temperatures during the steelmaking process, and monolithic refractories act as a barrier, preventing the heat from escaping and maintaining the desired temperature. This insulation helps in minimizing heat loss and reducing energy consumption. Secondly, monolithic refractories offer excellent resistance to chemical corrosion and erosion. The ladles and tundishes come into contact with molten metal and various fluxes, which can cause severe corrosion and erosion. The use of monolithic refractories protects the vessels from chemical attacks and extends their lifespan. This not only saves costs associated with frequent repairs or replacements but also ensures the integrity and safety of the vessels. Furthermore, monolithic refractories provide superior mechanical strength and structural stability. Ladles and tundishes need to withstand the weight of the molten metal and the stresses induced during pouring and handling. Monolithic refractories possess high mechanical strength, allowing them to withstand these loads and maintain their shape and integrity. This leads to a reduction in downtime and increases the productivity of the steelmaking process. Moreover, monolithic refractories offer flexibility in design and installation. They can be shaped and applied in various configurations, allowing for customization according to the specific requirements of ladles and tundishes. This flexibility ensures a better fit and improved performance of the refractories, ultimately enhancing the overall efficiency of the vessels. In summary, monolithic refractories improve the performance of ladles and tundishes by providing enhanced thermal insulation, superior resistance to chemical corrosion and erosion, increased mechanical strength, and flexibility in design and installation. These benefits contribute to the longevity, efficiency, and cost-effectiveness of ladles and tundishes in steelmaking operations.
- Q: What are the key factors to consider when designing the lining system with monolithic refractories?
- When designing a lining system with monolithic refractories, there are several key factors that need to be considered in order to ensure optimal performance and longevity of the lining. These factors include: 1. Material selection: Choosing the right monolithic refractory material is crucial. Factors such as the operating temperature, chemical environment, and mechanical stress need to be taken into account. Different monolithic refractories have varying properties and performance characteristics, so selecting the most suitable material for the specific application is essential. 2. Thermal expansion: Monolithic refractories, like any other material, expand and contract with changes in temperature. It is important to consider the thermal expansion properties of the refractory material and how it will interact with the surrounding structure. Proper expansion joints or design features should be incorporated to accommodate thermal expansion and prevent cracking or spalling. 3. Installation technique: The method of installation plays a critical role in the performance of the lining system. It is important to follow the manufacturer's guidelines for mixing, placing, and curing the monolithic refractory material. Improper installation can lead to reduced lining integrity, decreased thermal conductivity, and compromised structural stability. 4. Bonding and anchoring: Ensuring a strong bond between the monolithic refractory and the substrate is essential for effective lining performance. Proper surface preparation, selection of suitable bonding agents, and appropriate anchoring techniques should be considered to enhance the adhesion and stability of the lining system. 5. Structural design: The structural design of the lining system should be carefully planned to withstand the mechanical stresses and operational conditions. Factors such as load-bearing capacity, thermal shock resistance, and thermal cycling should be taken into consideration during the design phase. Reinforcement materials, such as steel fibers or mesh, may be required to enhance the structural integrity and prevent cracking or spalling. 6. Maintenance and repair: Anticipating the need for maintenance and repair is crucial for the longevity of the lining system. Consideration should be given to access points, inspection ports, and repair techniques. Regular inspections and proactive maintenance can help identify and address any issues before they escalate and lead to major failures. By considering these key factors when designing the lining system with monolithic refractories, one can ensure a well-designed and effective lining that can withstand the harsh conditions and provide long-term performance.
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Calcined Petroleum Coke as Carbon Raiser for Monolithic Refractories in Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t
- Supply Capability:
- 1000 m.t/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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