Monolithic Refractories for Iron and Steel Industry:Calcined Petroleum Coke as Carbon Raiser
- 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: 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 are monolithic refractories repaired or replaced in iron and steel facilities?
- Due to their superior thermal and mechanical properties, monolithic refractories are widely used in iron and steel facilities. These refractories are designed to withstand high temperatures, thermal shocks, and chemical attacks. However, over time, they may experience wear and tear, leading to the need for repair or replacement. The process of repairing or replacing monolithic refractories in iron and steel facilities typically involves the following steps: 1. Inspection: A comprehensive inspection is performed to identify areas that require repair or replacement. This inspection may include visual examination, thermal imaging, or other non-destructive testing techniques to assess the extent of damage. 2. Removal of damaged material: The damaged monolithic refractory material is carefully extracted using appropriate tools and equipment. This step ensures proper adhesion of the new refractory material to the substrate. 3. Surface preparation: The substrate or lining surface is prepared to improve the bonding between the new refractory material and the existing structure. This may involve cleaning, grinding, or shot blasting to remove loose particles, contaminants, and any remaining damaged material. 4. Selection of repair material: Depending on specific requirements and operating conditions, a suitable repair material is chosen. This may involve selecting a similar monolithic refractory material or a specialized repair product designed for the application. 5. Mixing and installation: The repair material is mixed according to the manufacturer's instructions, ensuring the right consistency and workability. It is then applied to the prepared surface using various techniques such as troweling, spraying, or casting. Attention is given to achieve the desired thickness and proper consolidation of the repair material. 6. Curing and drying: After installation, the repaired refractory material is allowed to cure and dry according to the manufacturer's recommendations. This step is crucial to achieve the desired strength and thermal properties of the refractory lining. 7. Quality control: Once the repair or replacement is complete, quality control measures are implemented to ensure the integrity and effectiveness of the repaired or refurbished refractory lining. This may involve conducting tests such as thermal conductivity measurements, density checks, or visual inspections. It is important to note that the process of repairing or replacing monolithic refractories may vary depending on the specific requirements and conditions of each iron and steel facility. Additionally, it is advisable to consult with refractory experts or manufacturers to ensure the correct selection of materials and proper execution of the repair or replacement procedure.
- Q: How do monolithic refractories contribute to the overall safety of iron and steel operations?
- Monolithic refractories play a crucial role in ensuring the overall safety of iron and steel operations by providing several important benefits. Firstly, monolithic refractories are known for their high thermal insulation properties, which means they can effectively withstand extreme temperatures and prevent heat loss. This is particularly important in iron and steel operations, where high temperatures are involved in various processes such as melting, casting, and heat treatment. By minimizing heat loss, monolithic refractories help in maintaining a stable temperature environment, reducing the risk of accidents and ensuring the safety of personnel. Secondly, monolithic refractories offer excellent resistance to chemical attacks. In iron and steel operations, various chemicals and gases are present that can corrode and deteriorate the lining of furnaces, ladles, and other equipment. By providing a protective barrier, monolithic refractories prevent the penetration of these corrosive substances, thus extending the lifespan of the equipment and reducing the likelihood of failures or leaks that could pose safety hazards. Additionally, monolithic refractories are known for their structural integrity and high mechanical strength. In iron and steel operations, heavy loads and stresses are common, especially during the handling and movement of molten metal and raw materials. Monolithic refractories can withstand these stresses without cracking or collapsing, ensuring the structural stability of the equipment and minimizing the risk of accidents or equipment failure. Furthermore, monolithic refractories offer excellent thermal shock resistance. During iron and steel operations, sudden temperature changes can occur due to the introduction of cold materials or liquids into hot equipment. This thermal shock can cause cracking and spalling of the refractory lining, which can compromise the safety and efficiency of the operation. Monolithic refractories, with their ability to withstand thermal shock, help in minimizing the risk of unexpected failures and maintaining the overall safety of the operation. In conclusion, monolithic refractories contribute significantly to the overall safety of iron and steel operations by providing high thermal insulation, chemical resistance, structural integrity, and thermal shock resistance. By ensuring a stable temperature environment, protecting against chemical attacks, withstanding heavy loads, and resisting thermal shock, monolithic refractories help in preventing accidents, equipment failures, and potential hazards, thus creating a safer working environment for personnel in the iron and steel industry.
- Q: How do monolithic refractories prevent slag penetration?
- Monolithic refractories prevent slag penetration by forming a dense and continuous protective layer on the surface of the refractory material. This layer acts as a barrier, preventing the molten slag from infiltrating and damaging the refractory.
- Q: What are the considerations for repairing and patching monolithic refractories?
- Considerations for repairing and patching monolithic refractories include assessing the extent of the damage, identifying the cause of the damage, selecting the appropriate repair material, ensuring proper bonding and curing, and following manufacturer's instructions and recommended procedures. Additionally, factors such as temperature, chemical exposure, and mechanical stress should be taken into account to ensure the repaired refractory maintains its performance and longevity.
- Q: What are the key innovations in monolithic refractories for the iron and steel industry?
- Monolithic refractories play a critical role in the iron and steel industry, providing lining materials for various high-temperature processes such as blast furnaces, ladles, and converters. Over the years, several key innovations have emerged in the field of monolithic refractories, addressing specific challenges and improving the overall performance of these linings. One of the significant innovations in monolithic refractories is the development of low cement and ultra-low cement castables. These castables contain reduced amounts of cement, resulting in improved properties such as higher hot strength, better resistance to thermal shock, and enhanced resistance to chemical attack. By reducing the cement content, the refractory can achieve higher density, reduced porosity, and increased mechanical strength, leading to improved durability and longer service life. Another innovation in monolithic refractories is the introduction of self-flowing castables. These castables are designed to have excellent flowability and can be easily installed by pouring or pumping, eliminating the need for manual vibration. Self-flowing castables offer advantages such as reduced installation time, improved lining quality, and better performance in complex geometries or areas that are difficult to access. In recent years, advancements in nanotechnology have also influenced the development of monolithic refractories. Nanoparticles, such as nano-sized additives and binders, are being incorporated into refractory compositions to enhance their properties. These nanoparticles can improve the refractory's mechanical strength, thermal conductivity, and corrosion resistance. Additionally, the use of nanotechnology allows for better control over the microstructure of refractories, resulting in optimized performance and increased lifespan. The development of high-performance monolithic refractories has also been driven by the need for improved energy efficiency and reduced environmental impact. Insulating castables, for example, have been developed to provide excellent thermal insulation properties, resulting in reduced heat loss and energy consumption in various applications. These refractories help to increase energy efficiency, lower production costs, and minimize greenhouse gas emissions. Furthermore, the use of advanced installation techniques, such as gunning and shotcreting, has revolutionized the application of monolithic refractories. These techniques enable faster and more precise installation, reducing downtime and improving productivity. Additionally, robotic application systems have been introduced, allowing for automated and consistent refractory installation, ensuring high-quality linings with minimal human intervention. In conclusion, the key innovations in monolithic refractories for the iron and steel industry include the development of low cement and ultra-low cement castables, self-flowing castables, the incorporation of nanotechnology, the introduction of high-performance insulation materials, and advancements in installation techniques. These innovations have significantly improved the performance, durability, energy efficiency, and installation processes of monolithic refractories, contributing to the overall efficiency and competitiveness of the iron and steel industry.
- Q: What are monolithic refractories and how are they used in the iron and steel industry?
- Monolithic refractories are a type of refractory material that is composed of a single, homogeneous structure. They are used in the iron and steel industry for various applications such as lining furnaces, ladles, and other high-temperature equipment. These refractories are typically made from a combination of aggregates, binders, and additives, which are mixed with water to form a plastic consistency. Once applied, they are dried and fired to create a strong and durable lining that can withstand extreme temperatures and chemical reactions. Monolithic refractories offer advantages like easy installation, excellent thermal shock resistance, and superior performance, making them crucial components in the iron and steel manufacturing process.
- Q: How do monolithic refractories withstand chemical attack from molten metals and slag?
- Monolithic refractories withstand chemical attack from molten metals and slag due to their unique composition and properties. These refractories are made of a single, homogeneous material, which provides them with better resistance against chemical corrosion. Additionally, monolithic refractories are designed to have low porosity and high density, which limits the penetration of molten metals and slag into their structure. These materials also have high melting points, enabling them to withstand the extreme temperatures present in industrial processes. Overall, the combination of their composition, low porosity, high density, and high melting points makes monolithic refractories highly resistant to chemical attack from molten metals and slag.
- Q: How do monolithic refractories improve the efficiency of ladle and tundish lining systems?
- Monolithic refractories improve the efficiency of ladle and tundish lining systems by providing superior thermal insulation, excellent resistance to thermal shock, and higher mechanical strength compared to traditional brick or castable linings. This results in reduced heat loss, improved temperature control, and increased refractory life, ultimately leading to higher productivity and cost savings in steelmaking operations.
- Q: What are the factors affecting the lifespan of monolithic refractories?
- There are several factors that can significantly affect the lifespan of monolithic refractories. 1. Temperature: One of the most critical factors is the operating temperature. Monolithic refractories are designed to withstand high temperatures, but prolonged exposure to extreme temperatures can cause thermal shock and lead to premature failure. 2. Thermal cycling: Frequent temperature fluctuations, known as thermal cycling, can also shorten the lifespan of monolithic refractories. The expansion and contraction of the refractory material can create stress, resulting in cracking and degradation over time. 3. Chemical environment: The chemical environment in which the monolithic refractories are used plays a crucial role in their lifespan. Exposure to corrosive gases, acids, alkalis, or molten metals can cause chemical reactions that degrade the refractory material. 4. Mechanical stress: Mechanical stress, such as abrasion, impact, and vibration, can weaken monolithic refractories and shorten their lifespan. This is especially relevant in industries with high mechanical activity, such as steelmaking or cement production. 5. Installation and maintenance: Proper installation and regular maintenance are essential for maximizing the lifespan of monolithic refractories. Poor installation techniques or neglecting maintenance can result in weak joints, inadequate anchoring, or the growth of cracks, leading to premature failure. 6. Quality of refractory material: The quality and composition of the monolithic refractory material can significantly impact its lifespan. Higher-quality materials with better resistance to temperature, chemical attacks, and mechanical stress tend to have longer lifespans. 7. Design and engineering: The design of the refractory lining and its engineering considerations, such as thickness, shape, and reinforcement, also influence the lifespan of monolithic refractories. Proper design can distribute stress more evenly, reduce thermal gradients, and improve overall performance and durability. 8. Operating conditions: The way monolithic refractories are operated and handled can affect their lifespan. Factors such as rapid temperature changes, improper cooling or heating procedures, or excessive thermal cycling can all contribute to premature failure. In summary, the lifespan of monolithic refractories is influenced by various factors, including temperature, thermal cycling, chemical environment, mechanical stress, installation and maintenance practices, quality of refractory material, design and engineering considerations, and operating conditions. Proper consideration and management of these factors are essential for maximizing the lifespan of monolithic refractories.
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Monolithic Refractories for Iron and Steel Industry:Calcined Petroleum Coke as Carbon Raiser
- 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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