Monolithic Refractories for Iron and Steel Industry - Covering Fluxes and Powders
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
We offer a series of covering flux products including both fine-grained powders and hollow granulated fluxes, so it’s possible for customer to select a suitable material according to operational parameters of each specific application.
Generally for tundish application factors affecting product performance result to be steel grade, exposed steel surface to be covered, casting time, and sequence index.
Regarding ladle applications, critical factors are chiefly the amount and the characteristics of the refining slag.
Increasing demand of better quality steel and subsequent use of high performance basic tundish lining material boosted researching and developing of active basic tundish powders assuring high covering, insulating properties and low corrosion activity.
Moreover, effective NMI (non-metallic inclusions) absorption capability is provided by specific viscosity and surface tension of molten slag layer in direct contact with molten steel.
Plant experience in using these active basic tundish powders gave improved steel cleanness.
Insulating covering fluxes for tundish and ladle
We offer two types of insulating covering fluxes :
Rice ash, with high levels of thermal insulation
Fly ash mixtures, with high levels of thermal insulation and protection against re-oxidation
Insulating MgO-based covering fluxes
Spray-dried covering powders based on magnesite and with very low silica content, with good thermal insulation properties, protection against re-oxidation and low refractory erosion.
Active basic powders
We offer two types of active basic powders:
Active basic powders for tundish (CaO-based) in fine-grain powders and granulated form to maximize absorption of NMI.
Calcium aluminate based material is well known to give metallurgical active slags able to prevent sulphur pick up to the steel. It offers the potential for oxide pick-up and protection against re-oxidation. It is a material obtained by complete melting in high-capacity furnaces of bauxite and limestone. Because such materials have poor insulating properties, it is necessary to add an additional insulating compound on top.
FAQ
Q:Are you a trading company or manufacturer?
A:CNBM is a large-scale central governmental industrial group with its own manufacturing sector, research and development sector, trading sector and logistics sector.
Q:I have some special requirement about specifications.
A:We have a well-rounded product range, which endows us with the capability of applying many special specifications. Please feel free to contact us with yours.
Q:Do you accept OEM service?
A:Yes, we do.
Q:What is your delivery time?
A:It depends on the size/complexity of your order and our own production schedule. Usually we provide a faster delivery than the industry's average.
Q:What is the payment term?
A:Our payment terms are negotiable.
Q:Can I have my own logo on the product?
A:Sure, we can apply your own logo on the products according to your drawings.
- Q:How do monolithic refractories withstand mechanical stress in the iron and steel industry?
- Monolithic refractories are designed to endure mechanical stress in the iron and steel industry due to their distinctive composition and properties. Unlike traditional brick-like refractories, which consist of multiple pieces, these refractories have a single, uniform structure. This monolithic structure offers several advantages in terms of mechanical stress resistance. To begin with, monolithic refractories possess greater strength and density compared to traditional refractories. This enables them to 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 stressful conditions. Moreover, monolithic refractories provide excellent resistance to thermal shock, which is crucial in the iron and steel industry. The rapid heating and cooling cycles experienced in processes like steelmaking or iron casting can subject refractories to thermal stress. 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 resistance to mechanical stress. Furthermore, monolithic refractories can be customized and applied on-site, resulting in 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 endure mechanical stress in the iron and steel industry due to their high strength and density, superior resistance to thermal shock, and seamless application. These properties enable them to withstand the intense mechanical forces encountered during various processes, ensuring the durability and efficiency of refractory linings in this demanding industry.
- Q:How long is the lifespan of monolithic refractories in iron and steel applications?
- The lifespan of monolithic refractories in iron and steel applications can vary depending on several factors. These factors include the type of refractory material used, the specific application, the operational conditions, and the maintenance practices implemented. In general, monolithic refractories used in iron and steel applications are designed to withstand high temperatures, thermal shock, chemical attack, and mechanical stress. They are expected to have a relatively long lifespan compared to other refractory materials. Under normal operating conditions and proper maintenance, monolithic refractories can typically last anywhere from several months to several years in iron and steel applications. However, it is important to note that certain areas of the application may experience more severe conditions and may require more frequent repairs or replacements. Regular inspections and monitoring of the refractories' condition are crucial to identify any signs of deterioration or damage. Any necessary repairs or replacements should be carried out promptly to prevent further damage and minimize downtime. It is also worth mentioning that advancements in refractory technology and materials have led to the development of more durable and long-lasting monolithic refractories. These advancements have increased the lifespan of refractories in iron and steel applications, ultimately improving the overall efficiency and productivity of the operations.
- Q:What are the common applications of monolithic refractories in blast furnaces?
- Monolithic refractories, also known as unshaped refractories, are widely used in blast furnaces due to their advantageous properties and versatile applications. Some common applications of monolithic refractories in blast furnaces include: 1. Furnace lining: Monolithic refractories are used to line the walls, hearth, and roof of blast furnaces. Their high thermal resistance and superior insulating properties help protect the furnace structure from extreme temperatures and thermal shocks. 2. Tuyere and taphole repair: Blast furnaces have tuyeres, which are nozzles that inject air or fuel into the furnace, and tapholes, which are openings used to tap molten iron or slag. Monolithic refractories are used to repair and maintain these critical components, as they can withstand the high temperatures and chemical reactions occurring in these areas. 3. Hot repair and maintenance: Blast furnaces undergo frequent repairs and maintenance due to the harsh operating conditions. Monolithic refractories are used for hot repair and maintenance, as they can be easily applied in a plastic or semi-plastic state to fill cracks, patch damaged areas, or replace worn-out linings. 4. Erosion and corrosion resistance: Blast furnace environments are highly corrosive due to the presence of molten iron, slag, and other molten materials. Monolithic refractories with high resistance to erosion and corrosion are used to protect the furnace lining from chemical attacks and prolong its lifespan. 5. Gunning mixes: Gunning mixes are widely used in blast furnaces for their ability to be sprayed or gunned onto the refractory lining. These mixes consist of fine refractory aggregates, bonding agents, and additives. They are applied to repair worn-out areas, seal cracks, and provide a protective layer against erosion and slag penetration. 6. Slag line and iron runner repair: The slag line and iron runners in blast furnaces are prone to erosion and wear due to the corrosive nature of molten slag and iron. Monolithic refractories are used to repair and rebuild these areas, ensuring smooth and efficient operation of the furnace. In conclusion, monolithic refractories have various applications in blast furnaces, including furnace lining, tuyere and taphole repair, hot repair and maintenance, erosion and corrosion resistance, gunning mixes, and slag line and iron runner repair. Their ability to withstand high temperatures, chemical attacks, and mechanical stresses make them indispensable in maintaining the integrity and efficiency of blast furnace operations.
- Q:How do monolithic refractories contribute to the overall efficiency of ladle slagging operations?
- Monolithic refractories play a vital role in enhancing the overall efficiency of ladle slagging operations, which involve removing impurities from molten metal in a ladle before pouring it into molds or further processing. One of the primary benefits of monolithic refractories is their capacity to withstand high temperatures, a crucial factor in ladle slagging operations. The refractory lining in the ladle must endure the intense heat generated by the molten metal and slag, as well as the chemical reactions occurring during the process. By possessing high thermal stability, monolithic refractories prevent the lining from cracking or deteriorating, thus ensuring the integrity of the ladle and maintaining its efficiency. Furthermore, monolithic refractories offer excellent resistance against chemical erosion and corrosion. In the ladle slagging process, the molten metal and slag may contain impurities and aggressive chemicals such as sulfur, phosphorus, and other oxides. These substances can attack and degrade the lining of the ladle, compromising its efficiency. However, monolithic refractories are specifically designed to withstand these chemical attacks, thereby prolonging the lifespan of the ladle and reducing the need for frequent repairs or replacements. Moreover, monolithic refractories possess exceptional thermal insulation properties. Precise temperature control is essential in ladle slagging operations to facilitate desired chemical reactions and efficient impurity removal. The thermal insulation provided by monolithic refractories helps maintain a consistent temperature within the ladle, preventing heat loss and facilitating optimal slagging conditions. Additionally, this insulation minimizes energy consumption and improves the overall energy efficiency of the ladle slagging process. In conclusion, monolithic refractories make significant contributions to the overall efficiency of ladle slagging operations. Their ability to endure high temperatures, resist chemical erosion, and provide thermal insulation ensures the integrity and longevity of the ladle. By reducing the need for frequent repairs and enabling precise temperature control, monolithic refractories optimize the slagging process, leading to enhanced productivity and cost-effectiveness.
- Q:How do monolithic refractories withstand the corrosive environments in steelmaking processes?
- Monolithic refractories withstand corrosive environments in steelmaking processes due to their high chemical resistance and thermal stability. These refractories are made from a single, continuous material, eliminating joints and weak points that can be susceptible to corrosion. They are composed of materials such as high-alumina, silica, or magnesia, which possess excellent resistance to chemical attacks from molten metals, slags, and gases present in steelmaking. Additionally, monolithic refractories can be designed with specific additives and binders to further enhance their resistance to corrosion, ensuring their durability and prolonged service life in the harsh conditions of steelmaking processes.
- Q:How do monolithic refractories enhance the efficiency of reheating furnaces?
- Monolithic refractories play a crucial role in enhancing the efficiency of reheating furnaces in several ways. Firstly, monolithic refractories offer excellent thermal insulation properties, which minimize heat losses from the furnace. This insulation helps to maintain a high and consistent temperature inside the furnace, reducing the need for excessive fuel consumption and improving energy efficiency. Secondly, monolithic refractories have high thermal conductivity, which allows for efficient heat transfer within the furnace. This means that the heat generated by the burners can be evenly distributed throughout the furnace, ensuring uniform heating of the materials being reheated. This uniform heating not only enhances the overall efficiency but also helps to prevent hot spots or cold spots, which can negatively impact the quality of the reheated products. Moreover, monolithic refractories have excellent resistance to thermal shock and mechanical stress. Reheating furnaces often undergo rapid temperature changes and are subjected to intense mechanical forces due to the movement of materials and the operation of various equipment. The use of monolithic refractories helps to prevent cracks, spalling, and other forms of refractory damage, thus ensuring the longevity and continuous operation of the furnace without interruptions for repairs. Additionally, monolithic refractories offer ease of installation, repair, and maintenance compared to traditional brick refractories. Their ability to be cast or sprayed onto the furnace lining allows for a more precise and seamless installation, reducing the risk of weak joints or gaps that could compromise the furnace's efficiency. Furthermore, in case of any damage or wear, monolithic refractories can be easily repaired or patched up, minimizing downtime and improving the overall productivity of the furnace. In summary, the use of monolithic refractories in reheating furnaces enhances efficiency by providing effective thermal insulation, facilitating uniform heat distribution, resisting thermal shock and mechanical stress, and allowing for easier installation and maintenance. These benefits contribute to lower energy consumption, improved product quality, increased furnace durability, and reduced operational costs.
- Q:How do monolithic refractories impact the quality and performance of iron and steel products?
- Monolithic refractories play a crucial role in influencing the quality and performance of iron and steel products. These refractories, which are composed of a single, solid structure, are used to line the furnaces and other high-temperature processing equipment in the iron and steel industry. The use of monolithic refractories ensures enhanced thermal insulation, corrosion resistance, and stability in the furnace lining. This results in improved energy efficiency and reduced heat loss during the manufacturing process. Additionally, monolithic refractories offer excellent resistance to thermal shock, meaning they can withstand rapid changes in temperature without cracking or deteriorating. The quality and performance of iron and steel products are greatly impacted by the consistent and uniform heat distribution provided by monolithic refractories. This leads to superior metallurgical properties and improved product quality, such as increased strength, enhanced durability, and better surface finish. Furthermore, monolithic refractories contribute to the overall productivity and cost-effectiveness of the iron and steel industry. Their high refractoriness and low maintenance requirements result in extended furnace lining life, reducing downtime and increasing production capacity. This, in turn, leads to higher yields and improved profitability for iron and steel manufacturers. In summary, monolithic refractories have a significant positive impact on the quality and performance of iron and steel products by providing efficient thermal insulation, superior heat distribution, and increased resistance to thermal shock. Their use enhances product quality, productivity, and cost-effectiveness in the iron and steel industry.
- Q:How do monolithic refractories withstand chemical attack from molten metals and slag?
- Monolithic refractories are highly resistant to chemical attack from molten metals and slag due to their unique composition and structure. These refractories are typically made from a single, solid piece with no joints or seams, which minimizes the opportunity for chemical penetration. One of the key factors that enables monolithic refractories to withstand chemical attack is their high melting point. These materials are designed to have a melting point significantly higher than the temperature of the molten metal or slag they are exposed to. This prevents the refractory from melting or deforming when in contact with the hot molten substances. In addition to their high melting point, monolithic refractories are formulated with materials that have excellent chemical resistance. They are often composed of a combination of oxides, such as alumina, magnesia, and zirconia, which have a strong affinity for oxygen and form stable compounds. This allows the refractory to form a protective oxide layer on its surface when exposed to molten metals and slag, effectively shielding it from chemical attack. Furthermore, the dense and compact structure of monolithic refractories plays a crucial role in their resistance to chemical attack. The absence of joints and seams minimizes the chances of molten metals and slag infiltrating the refractory and causing chemical reactions. This dense structure also reduces the porosity of the material, making it less permeable to aggressive substances. Moreover, manufacturers often add specialized additives to monolithic refractories to enhance their chemical resistance. These additives can include fibers, binders, and corrosion inhibitors, which further improve the refractory's ability to withstand chemical attack. In conclusion, monolithic refractories are designed to withstand chemical attack from molten metals and slag through their high melting point, chemical-resistant composition, dense structure, and specialized additives. These properties allow them to maintain their integrity and performance even in the harshest environments, making them an ideal choice for applications involving high-temperature and corrosive substances.
- 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:What are monolithic refractories and how are they used in the iron and steel industry?
- Monolithic refractories are a type of refractory material that are characterized by their unified and continuous structure. Unlike traditional refractory bricks, which are made by firing individual pieces in a kiln, monolithic refractories are composed of a single, seamless mass. This allows for greater flexibility in terms of shape and size, making them ideal for various applications in the iron and steel industry. In the iron and steel industry, monolithic refractories are widely used due to their superior thermal and mechanical properties. They are employed in a range of applications, including lining furnaces, kilns, ladles, and tundishes. These refractories are designed to withstand extreme temperatures, chemical erosion, and mechanical stress, ensuring the efficient and continuous operation of the steelmaking process. One common use of monolithic refractories in the iron and steel industry is the lining of blast furnaces. Blast furnaces are large, cylindrical structures used for the production of pig iron from iron ore. The lining of these furnaces is subjected to intense heat and chemical reactions, as well as the abrasive nature of iron ore and hot gases. Monolithic refractories, such as castables and gunning mixes, are utilized to create a durable lining that can withstand these harsh conditions. Another application is the lining of ladles, which are used to transport molten metal from the blast furnace to the steelmaking process. Monolithic refractories are used to line the ladles, protecting them from the corrosive effects of hot metal and slag. In this case, the ability to form monolithic shapes allows for precise fitting and easy installation. Monolithic refractories also find use in tundishes, which are vessels used to distribute molten metal evenly into molds during continuous casting. The refractories used in tundishes must have excellent thermal shock resistance and erosion resistance to withstand the high temperatures and abrasive nature of the molten metal. Monolithic refractories, such as ramming and patching mixes, are utilized to repair and maintain the tundish lining. Overall, monolithic refractories are essential in the iron and steel industry for their ability to withstand extreme conditions and provide long-lasting linings in various applications. By utilizing these advanced refractory materials, the industry can achieve improved efficiency, reduced downtime, and enhanced productivity in the steelmaking process.
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Monolithic Refractories for Iron and Steel Industry - Covering Fluxes and Powders
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 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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