Monolithic Refractories for Iron and Steel Industry - Ladle Shroud Long Nozzle Chinese Steelmaking
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
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Description:
Steelmaking long nozzle /refractory materials/refractory nozzles
steelmaking zircon nozzle Zr content 94-95% , and nozzle with metal shell ,
can protect nozzle burst.the casting temperature normally at 1520-1580 ℃.
our zirconia cores temperature resistance up to 2000℃, density is 4.2g/cm3 .
Steelmaking tundish nozzle zircon core contact face made a little big than other,effectively protect the nozzle using life.
tundish zirconia nozzles materials is alumina-zirconia-carbon .composed by Alumina-Carbon Shell, and zirconia core.
Graphic illustration:
1.Argon injection structure depending on customer specifications.
2.Ceramic glaze layer to prevent the material oxidation effectively.
3.Ceramic fiber blanket to prevent heat lost during casting.
4.High quality Al-C materials having high corrosion and thermal shock resistance.
5.High quality Zr-based composite to provide high corrosion resistance at the slag line.
6.Non-graphite based mased materials to meet the requirements of producing low carbon steel,silicon steel and high purity steel.
Manufacturing and QC
1.Raw materials blending
Independent raw materials blending center to assurestrict control of materials quality.
2.Shaping
Isostatic pressing technoloty,with as 1000 tons of pressure to assure the homogenous bulk density of each product.
3.Machining
To assure the uniform shape,dimension and dimension tolerance of each product.
4.X-ray defect inspection
To assure all products supplied to our customers without any defect and to prevent the un-countable feconomic loss for our customers.
5.Physical and chemistry analysis
To assure all products meet the physical and chemistry characteristics.
6.Packaging
The world-class for packaging to assure the safety transportation.
- Q: How do monolithic refractories protect lining in ladles and tundishes?
- Monolithic refractories protect lining in ladles and tundishes by forming a strong and durable barrier against the harsh conditions of high temperatures, thermal shock, and chemical corrosion. They are designed to withstand the extreme heat and mechanical stresses that occur during metal pouring and handling, ensuring the integrity and longevity of the lining. Additionally, monolithic refractories provide excellent insulation properties, reducing heat loss and conserving energy in the ladles and tundishes.
- Q: How are monolithic refractories inspected and tested for quality assurance?
- Monolithic refractories are inspected and tested for quality assurance through various methods. Visual inspections are conducted to check for any visible defects such as cracks, spalling, or other physical damages. In addition, non-destructive testing techniques like ultrasonic testing and X-ray inspection are used to detect any internal flaws or inconsistencies in the refractory material. Furthermore, mechanical testing such as compression and flexural strength tests are performed to evaluate the mechanical properties of the monolithic refractories. These inspections and tests ensure that the refractories meet the required quality standards and can withstand the harsh operating conditions they are designed for.
- Q: What are the recent developments in monolithic refractories for the iron and steel industry?
- In recent years, there have been several significant developments in monolithic refractories for the iron and steel industry. Monolithic refractories play a crucial role in the production of iron and steel, as they provide high-temperature resistance and insulation to the lining of furnaces and other equipment used in the industry. One of the key advancements in monolithic refractories is the development of advanced alumina-based castables. These castables offer superior thermal shock resistance, high strength, and excellent corrosion resistance, making them ideal for use in the iron and steel industry. They can withstand extreme temperatures and mechanical stresses, ensuring longer service life and reduced downtime for maintenance. Another notable development is the introduction of low-cement and ultra-low cement castables. These castables have a reduced cement content compared to traditional castables, resulting in improved refractory properties. They offer higher hot strength, reduced porosity, and enhanced resistance to slag and metal corrosion. This allows for increased productivity and efficiency in iron and steel manufacturing processes. Furthermore, there have been advancements in the use of insulating refractories in the iron and steel industry. Insulating castables and bricks are now being used to line ladles, tundishes, and other equipment, providing better insulation and energy efficiency. These materials help to reduce heat loss and improve thermal efficiency, resulting in cost savings and reduced environmental impact. Additionally, the development of monolithic refractories with improved installation techniques has been a significant development. Traditional brick lining methods require skilled labor and a longer installation time. However, with the introduction of gunning and shotcreting techniques, the installation process has become faster and more efficient. These techniques involve spraying refractory materials onto the lining surface, ensuring better adherence and reducing the risk of lining failure. Overall, the recent developments in monolithic refractories for the iron and steel industry have focused on improving thermal shock resistance, corrosion resistance, insulation properties, and installation techniques. These advancements have resulted in increased efficiency, reduced downtime, and improved productivity in the iron and steel manufacturing processes.
- Q: How do monolithic refractories help in enhancing the durability of iron and steel furnaces?
- Monolithic refractories play a crucial role in enhancing the durability of iron and steel furnaces due to their unique properties and characteristics. These materials are designed to withstand extremely high temperatures and harsh conditions, making them ideal for lining the furnaces. Firstly, monolithic refractories have excellent thermal resistance, meaning they can withstand extreme heat without losing their structural integrity. Iron and steel furnaces operate at incredibly high temperatures, sometimes exceeding 2,000 degrees Celsius. Regular bricks or other materials would not be able to withstand such temperatures, leading to frequent repairs and maintenance. Monolithic refractories, on the other hand, can handle these extreme temperatures without deteriorating, thus enhancing the durability of the furnaces. Secondly, monolithic refractories have high resistance to chemical attack. In iron and steel production, the materials being processed often contain various impurities and aggressive chemicals. These substances can react with the furnace lining and cause corrosion or erosion over time. However, monolithic refractories have a high resistance to chemical attack, ensuring that the lining remains intact and durable even in the presence of corrosive elements. Furthermore, monolithic refractories have excellent mechanical strength and abrasion resistance. Iron and steel furnaces experience mechanical stress and abrasion due to the movement of raw materials, the stirring of molten metal, and the tapping of the furnace. The lining needs to withstand this constant wear and tear without breaking or cracking. Monolithic refractories have superior mechanical strength and can resist abrasion, ensuring that the furnace remains durable and functional for a longer period. Additionally, monolithic refractories offer exceptional thermal shock resistance. The lining of iron and steel furnaces is subjected to rapid temperature changes during various stages of production. These temperature fluctuations can cause thermal stress and lead to cracking or spalling of the lining. However, monolithic refractories have low thermal conductivity and can withstand thermal shock, preventing any damage to the furnace lining and enhancing its durability. In summary, monolithic refractories help enhance the durability of iron and steel furnaces by providing excellent thermal resistance, high resistance to chemical attack, superior mechanical strength and abrasion resistance, as well as exceptional thermal shock resistance. These properties ensure that the furnace lining remains intact, withstands extreme temperatures, and resists the corrosive and abrasive nature of the materials being processed, ultimately prolonging the life of the furnace and reducing the need for frequent repairs or replacements.
- Q: How are monolithic refractories used in the iron and steel industry?
- Due to their exceptional performance and versatility, monolithic refractories are widely utilized in various applications within the iron and steel industry. Composed of a uniform material, these refractories serve as seamless linings in high-temperature environments. In the iron and steel industry, the significance of monolithic refractories cannot be overstated as they play a crucial role in multiple stages of the manufacturing process. A primary application is seen in the blast furnace, where the inside of the furnace is lined with monolithic refractories. This lining is exposed to exceedingly high temperatures and harsh chemical reactions. By providing excellent thermal insulation and resistance to chemical attack, monolithic refractories ensure the durability and longevity of the blast furnace. Another crucial application is witnessed in the steelmaking process, where monolithic refractories are used to line the ladles and tundish, utilized for transporting and pouring molten steel. These refractories are specially designed to withstand the corrosive nature and high temperatures of the molten steel, thus preventing contamination and guaranteeing the quality of the final product. Furthermore, monolithic refractories find application in various ancillary equipment and structures within the iron and steel industry. They are employed in furnaces, kilns, and other heat treatment systems to provide insulation and maintain high-temperature conditions. Additionally, they are used in the construction of chimneys, exhaust ducts, and other exhaust systems, where they offer thermal insulation and resistance against corrosive gases. Overall, the vital role played by monolithic refractories in the iron and steel industry lies in their ability to provide high-temperature insulation, chemical resistance, and durability. They optimize the production process, enhance energy efficiency, and ensure the quality of the final product. With their exceptional performance and versatility, monolithic refractories have become an indispensable component within the iron and steel manufacturing industry.
- Q: How do monolithic refractories withstand mechanical stress in the iron and steel industry?
- Monolithic refractories are designed to withstand mechanical stress in the iron and steel industry through their unique composition and properties. These refractories are made up of a single, uniform structure, as opposed to traditional brick-like refractories that consist of multiple pieces. This monolithic structure provides several advantages in terms of mechanical stress resistance. Firstly, monolithic refractories possess a higher strength and density compared to traditional refractories. This allows them to better withstand the mechanical forces exerted during various processes in the iron and steel industry, such as the movement of molten metal, the impact of scrap materials, or the pressure from gases and liquids. Their superior strength and density help prevent cracking, deformation, or failure under these stress conditions. Additionally, monolithic refractories offer excellent thermal shock resistance, which is crucial in the iron and steel industry. The rapid heating and cooling cycles experienced in processes like steelmaking or iron casting can cause thermal stress on refractories. However, the monolithic structure of these refractories allows for better thermal conductivity and expansion, reducing the risk of thermal shock damage. This ability to withstand thermal stress contributes to their overall mechanical stress resistance. Moreover, monolithic refractories can be customized and applied on-site, providing a seamless lining that eliminates joints or weak spots. This seamless application ensures a more uniform distribution of stress and prevents the formation of cracks or gaps that could weaken the refractory lining. By eliminating these vulnerabilities, monolithic refractories enhance their ability to resist mechanical stress in the demanding conditions of the iron and steel industry. In conclusion, monolithic refractories withstand mechanical stress in the iron and steel industry through their high strength and density, superior thermal shock resistance, and seamless application. These properties enable them to endure the intense mechanical forces encountered during various processes, ensuring the longevity and efficiency of refractory linings in this demanding industry.
- Q: Can monolithic refractories be used for lining iron and steel ladles during casting and pouring?
- Yes, monolithic refractories can be used for lining iron and steel ladles during casting and pouring. Monolithic refractories are a type of refractory material that is composed of a single, homogeneous structure, as opposed to traditional refractory bricks which are made up of multiple pieces. Monolithic refractories are often preferred for lining ladles in iron and steel casting due to their numerous advantages. Firstly, they have excellent thermal shock resistance, allowing them to withstand the high temperatures experienced during casting and pouring processes. This is crucial as ladles are constantly exposed to extreme heat. Additionally, monolithic refractories offer superior erosion and corrosion resistance, ensuring that the lining can withstand the harsh conditions and chemical reactions that occur when molten metal comes into contact with the ladle. They also have good thermal insulation properties, reducing heat loss and increasing energy efficiency during the casting process. Furthermore, monolithic refractories are highly versatile and can be easily installed, repaired, or replaced. They can be formed and shaped to fit the specific requirements of ladles, providing a tight and secure lining. This flexibility also allows for quick maintenance and repair, minimizing downtime and optimizing productivity. In conclusion, monolithic refractories are an ideal choice for lining iron and steel ladles during casting and pouring. Their thermal shock resistance, erosion and corrosion resistance, thermal insulation properties, and ease of installation make them well-suited for this demanding application.
- Q: How do monolithic refractories contribute to the reduction of downtime in iron and steel plants?
- Monolithic refractories contribute to the reduction of downtime in iron and steel plants by providing superior thermal insulation and resistance to high temperatures, reducing the risk of equipment failure and unplanned shutdowns. Their ability to withstand extreme conditions, such as molten metal and slag, allows for extended operational periods without frequent maintenance or replacement. Additionally, monolithic refractories offer quick and easy installation, repair, and maintenance, minimizing the time required for downtime and ensuring a more efficient and productive operation in iron and steel plants.
- Q: How are monolithic refractories installed in iron and steel production processes?
- Monolithic refractories are installed in iron and steel production processes by first preparing the surface, then applying the refractory material in a plastic or semi-plastic state. This can be done through various methods such as gunning, casting, ramming, or spraying. After the installation, the refractory material is allowed to cure and harden, forming a durable lining that can withstand high temperatures and harsh conditions in the production processes.
- Q: What are the recommended storage and handling practices for monolithic refractories?
- The recommended storage and handling practices for monolithic refractories are crucial to ensure their optimal performance and longevity. Here are some key practices to follow: 1. Storage: Monolithic refractories should be stored in a clean, dry, and well-ventilated area. The storage facility should be protected from moisture, extreme temperatures, and direct exposure to sunlight. Ideally, the refractories should be stored on pallets or racks to prevent contact with the ground and minimize the risk of damage. 2. Handling: It is essential to handle monolithic refractories with care to avoid any physical damage. Refractories should be lifted and moved using appropriate lifting equipment, such as forklifts or cranes, to prevent excessive stress or strain on the material. Avoid dropping or dragging the refractories, as this can lead to cracks or fractures. 3. Packaging: If the monolithic refractories are supplied in packaging, it is important to inspect the packaging for any signs of damage or moisture before accepting the delivery. Damaged packaging can indicate potential damage to the refractory material. If any anomalies are noticed, it is advisable to inform the supplier immediately. 4. Moisture control: Monolithic refractories are susceptible to moisture absorption, which can lead to reduced performance and structural integrity. It is crucial to protect the refractories from direct contact with water or excessive humidity during storage and handling. If refractories become wet, they should be dried thoroughly before use to eliminate any absorbed moisture. 5. Stack height: When storing monolithic refractories, it is important to consider the stack height. Excessive stacking can result in pressure on the lower layers, leading to deformation or cracking. Follow the manufacturer's recommendations for maximum stack height to ensure the refractories' structural integrity. 6. Regular inspection: Regularly inspect the refractory material for any signs of damage or degradation during storage and handling. Look for cracks, spalling, or any other visible abnormalities. If any issues are identified, consult the manufacturer or a refractory expert for guidance on whether the material is still suitable for use. By following these recommended storage and handling practices, you can minimize the risk of damage to monolithic refractories and optimize their performance, ultimately extending their service life and ensuring their effectiveness in high-temperature applications.
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Monolithic Refractories for Iron and Steel Industry - Ladle Shroud Long Nozzle Chinese Steelmaking
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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