$Sen Monolithic Refractories for Iron and Steel Industry Melting Furnace Refractory Material System 1$
$Sen Monolithic Refractories for Iron and Steel Industry Melting Furnace Refractory Material System 2$

$Sen Monolithic Refractories for Iron and Steel Industry Melting Furnace Refractory Material$

$Sen Monolithic Refractories for Iron and Steel Industry Melting Furnace Refractory Material System 1$

$Sen Monolithic Refractories for Iron and Steel Industry Melting Furnace Refractory Material System 2$

Sen Monolithic Refractories for Iron and Steel Industry Melting Furnace Refractory Material

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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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Specifications

sen
Long life
Reliable
ISO9001
High thermal shock resistance.

1.New type Composite subemeged nozzle

Advantage

long life,10hours

high thermal shock resistance

and reliable flow control.

Applicable to the C.C. of the billet, slab, round and bloom for the converter, and EAF,

pouring for more than 400 min .

Application

Applicable to the C.C. of the billet, slab, round and bloom for the converter, and EAF, pouring for more than 400 min,and compositions and specifications can be adjusted according to the specific requirement of the customer.

Specifications

No.	SK6-7	SK6-8	SK6-9	SK6-10	SK6-11	SK6-12
Name	Submerge entry nozzle(SEN)
	Body	Slag-band	Body	Slag-band	Body	Slag-band
Al₂O₃ %	≥45		≥45		≥50
C+SiC %	≥30	≥13	≥30	≥13	C≥26	≥13
ZrO₂ %	≥4	≥75	≥4	≥75	≥3	≥75
B.D.g/cm³	≥2.3	≥3.5	≥2.3	≥3.5	≥2.25	≥3.5
A.P. %	≤19	≤19	≤19	≤19	≤18	≤19
CCS MPa	≥20	≥20	≥20	≥20	≥20	≥20
H.M.O.R MPa	≥6	≥6	≥6	≥6	≥6	≥6
Thermal shock resistance times	≥5	≥5	≥5	≥5	≥5	≥5

Details of Al2O3-ZrO2-C Al2O3 anti-clogging SEN
Series of Al2O3-ZrO2-C material in the body can be applied to different steel grades. The latest new type of low silica material has more higher thermal stability, erosion resistance compared with traditional materials. Multi-types for Al2O3 anti-clogging. 1.Inner lining with argon insert 2.Traditional Al2O3 anti-clogging inner lining 3.Low silica&low carbon inner lining Series of compound materials for slag line.

Details of Al2O3-ZrO2-C Al2O3 anti-clogging SEN

Series of Al2O3-ZrO2-C material in the body can be applied to different steel grades. The latest new type of low silica material has more higher thermal stability, erosion resistance compared with traditional materials.

Multi-types for Al2O3 anti-clogging.
1.Inner lining with argon insert
2.Traditional Al2O3 anti-clogging inner lining
3.Low silica&low carbon inner lining

Series of compound materials for slag line.

Q: How are monolithic refractories applied in the hot face and cold face of furnace linings?: Monolithic refractories are commonly used in furnace linings because of their superior thermal and mechanical properties. These materials are applied in both the hot face and cold face of furnace linings, but the application process differs for each. In the hot face of furnace linings, monolithic refractories are applied to withstand the extreme temperatures and harsh conditions. This is the area that directly faces the heat source and is exposed to the highest temperatures. Here, the refractory material is specifically designed to have excellent thermal conductivity and high resistance to thermal shock. To apply monolithic refractories in the hot face, a technique called gunning is commonly used. Gunning involves spraying or troweling the refractory material onto the surface of the lining. This technique allows for quick and efficient application, ensuring a uniform and dense layer of refractory material. Gunning is particularly suitable for areas with complex shapes and contours. On the other hand, in the cold face of furnace linings, the primary concern is insulation and protection. The cold face is the area that is not in direct contact with the heat source and experiences lower temperatures. Here, the refractory material is designed to have low thermal conductivity and high insulation properties. The application of monolithic refractories in the cold face is typically done using a technique called ramming. Ramming involves compacting the refractory material into place using a pneumatic or hydraulic ramming tool. This technique ensures a dense and solid layer of refractory material, providing excellent insulation and protection against heat loss. Overall, monolithic refractories play a crucial role in furnace linings, as they provide the necessary thermal insulation and mechanical strength required in high-temperature environments. The application techniques of gunning and ramming allow for efficient and effective installation in both the hot face and cold face of furnace linings.

Q: What are the recent developments in monolithic refractories for the iron and steel industry?: Recent developments in monolithic refractories for the iron and steel industry include advancements in material composition, manufacturing techniques, and application methods. These developments have led to improved refractory performance, enhanced durability, and increased energy efficiency. Some notable developments include the use of new raw materials, such as nano-sized additives and ultra-high temperature-resistant binders, which enhance the refractory's resistance to thermal shock and corrosion. Additionally, advancements in manufacturing techniques, such as advanced mixing technologies and precise curing processes, have resulted in more homogenous and consistent refractory structures. Furthermore, there have been innovations in application methods, including the use of robotic systems for precise and efficient installation, leading to reduced downtime and increased productivity in the iron and steel industry. Overall, these recent developments in monolithic refractories have significantly contributed to the optimization of iron and steel production processes.

Q: How do monolithic refractories prevent slag penetration?: Monolithic refractories prevent slag penetration through several mechanisms. Firstly, monolithic refractories are made up of high-quality materials that have excellent resistance to slag attack. These materials, such as alumina, silica, and magnesia, have a high melting point and can withstand the corrosive nature of the slag. Secondly, monolithic refractories are designed with a dense and compact structure that minimizes the porosity. Slag penetration occurs when the molten slag infiltrates the pores and cracks of the refractory material. By reducing the porosity, monolithic refractories create a barrier that restricts the entry of slag into the refractory lining. Additionally, monolithic refractories can be chemically bonded to the substrate, forming a strong and impermeable bond. This bond further enhances the resistance to slag penetration by preventing any gaps or weak points where the slag can penetrate. Moreover, monolithic refractories can be designed with a high thermal shock resistance. Slag penetration is often intensified by thermal cycling, where the refractory material undergoes rapid temperature changes. Monolithic refractories with high thermal shock resistance can withstand these temperature fluctuations without cracking or spalling, thus reducing the risk of slag penetration. Furthermore, the proper installation and maintenance of monolithic refractories play a crucial role in ensuring their effectiveness against slag penetration. The refractory lining needs to be properly designed, using appropriate thickness and geometry, to provide maximum protection against slag attack. Regular inspection and repair of any damaged or worn-out areas can also prevent slag penetration. In conclusion, monolithic refractories prevent slag penetration through their excellent resistance to slag attack, dense structure, chemical bonding, high thermal shock resistance, and proper installation and maintenance. These factors work together to create a strong and impermeable barrier that protects the underlying substrate from the corrosive effects of slag.

Q: How do monolithic refractories resist thermal shock in the iron and steel industry?: Monolithic refractories are specifically designed to resist thermal shock in the iron and steel industry. This is primarily achieved through their unique composition and structure. Firstly, monolithic refractories are made from high-quality raw materials, such as alumina, magnesia, and silica, which have excellent thermal properties. These materials are carefully selected to provide a high melting point, low thermal conductivity, and good thermal expansion characteristics. Secondly, the manufacturing process of monolithic refractories involves precise control of the grain size distribution and the addition of bonding agents. This results in a dense and homogeneous structure, which enhances their resistance to thermal shock. The bonding agents also play a crucial role in enhancing the refractory's strength and integrity. Additionally, monolithic refractories are often formulated with additives that provide increased resistance to thermal shock. These additives can include zirconia, silicon carbide, or graphite, which improve the refractory's ability to withstand rapid temperature changes. Moreover, monolithic refractories are designed to have low porosity, reducing the penetration of molten metal or slag into the material. This helps to prevent the formation of cracks and spalling, which can occur due to thermal shock. Furthermore, monolithic refractories are often applied as a lining or coating on the surface of the furnace or other equipment. This allows them to form a protective barrier, reducing direct exposure to extreme temperatures and thermal cycling. Overall, the combination of high-quality raw materials, careful manufacturing processes, additives, low porosity, and proper application techniques make monolithic refractories highly resistant to thermal shock in the iron and steel industry. They can withstand rapid temperature changes, prevent cracks, and maintain their structural integrity, ensuring reliable and efficient operation of furnaces and other equipment in this demanding industry.

Q: How do monolithic refractories resist chemical attacks from molten metals and slag?: Monolithic refractories are engineered to withstand chemical attacks caused by molten metals and slag. They possess various essential qualities that enable them to endure such harsh conditions. To begin with, monolithic refractories comprise top-notch materials with exceptional chemical resistance. These materials, including alumina, magnesia, and chrome, have a high melting point and remain stable even when exposed to extreme temperatures and corrosive substances. This chemical stability ensures that the refractory maintains its integrity and structural strength when in contact with molten metals and slag. Moreover, monolithic refractories have a compact and dense structure. This microstructure serves as a barrier, preventing molten metals and slag from penetrating the refractory material. By limiting the contact between the corrosive substances and the refractory, the dense structure reduces the likelihood of chemical reactions and erosion, thereby enhancing the refractory's resistance to chemical attacks. Additionally, monolithic refractories often contain additives and binders that enhance their chemical resistance. These additives form 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 inhibit the penetration and corrosion of the refractory material. Furthermore, monolithic refractories are designed to have minimal 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 for extended periods. In conclusion, monolithic refractories withstand chemical attacks from molten metals and slag due to their high-quality materials, dense structure, additives, and low porosity. These combined properties enable the refractories to endure aggressive environments and maintain their performance and longevity in industrial applications.

Q: How do monolithic refractories contribute to the overall reliability of iron and steel processes?: Monolithic refractories play a significant role in enhancing the overall reliability of iron and steel processes. These refractories are specifically designed to withstand extreme temperatures and harsh conditions found in iron and steel manufacturing environments. One key contribution of monolithic refractories is their ability to provide superior insulation. They have low thermal conductivity, which significantly reduces heat loss from the furnace or kiln. This insulation property allows for efficient energy usage and helps maintain stable operating conditions, leading to consistent and reliable production. Additionally, monolithic refractories offer excellent resistance to chemical attacks from molten metals, slag, and other corrosive substances. They can withstand the high alkalinity and high temperature of molten iron and steel, preventing any damage to the refractory lining. This resistance ensures the longevity of the refractory material, minimizing the need for frequent maintenance and replacement, thus contributing to the overall reliability of the iron and steel processes. Moreover, monolithic refractories exhibit good mechanical strength and stability, even at elevated temperatures. This strength allows them to withstand the mechanical stresses and strains exerted during the iron and steel manufacturing processes, such as thermal cycling, mechanical impact, and abrasion. By maintaining their structural integrity, monolithic refractories prevent the formation of cracks or spalling, which could lead to downtime or even catastrophic failure. This reliability ensures uninterrupted operations and reduces the risk of costly shutdowns. Furthermore, monolithic refractories offer flexibility in terms of installation and repair. They can be easily shaped and applied to various furnace shapes and sizes, allowing for efficient lining construction. Additionally, monolithic refractories can be repaired or patched quickly, minimizing downtime and maintaining the operational reliability of the iron and steel processes. In conclusion, monolithic refractories contribute to the overall reliability of iron and steel processes by providing superior insulation, resistance to chemical attacks, mechanical strength, and flexibility in installation and repair. By ensuring consistent performance, durability, and reduced maintenance requirements, monolithic refractories play a crucial role in optimizing the efficiency and reliability of iron and steel manufacturing operations.

Q: What are monolithic refractories?: Monolithic refractories are a type of heat-resistant materials used to line high-temperature industrial equipment such as furnaces, kilns, and reactors. Unlike traditional refractories, which are made of pre-formed bricks or shapes, monolithic refractories are a single, solid piece that can be easily shaped and installed. They are composed of various aggregates, binders, and additives, providing excellent thermal insulation and resistance to extreme temperatures, chemical attacks, and mechanical stress. Monolithic refractories offer flexibility, cost-effectiveness, and improved installation efficiency compared to traditional brick refractories.

Q: What are the main factors affecting the thermal conductivity of monolithic refractories?: The main factors affecting the thermal conductivity of monolithic refractories are the composition and structure of the refractory material, the porosity and density of the material, the presence of any impurities or defects, and the temperature and pressure conditions at which the refractory is being used.

Q: What are some common maintenance practices for monolithic refractories in iron and steel furnaces?: Some common maintenance practices for monolithic refractories in iron and steel furnaces include: 1. Regular inspections: Conducting routine inspections is essential to identify any potential issues with the monolithic refractories. Inspections should be carried out by trained professionals who can assess the condition of the refractories and detect any signs of wear, erosion, or damage. 2. Repair and patching: Promptly repairing any damaged or eroded areas is crucial to prevent further deterioration and maintain the integrity of the refractories. Patching materials, such as refractory mortars or castable refractories, can be used to fill in gaps or repair small cracks. 3. Cleaning: Regularly cleaning the refractory lining helps to remove any build-up of slag, scale, or other impurities that can negatively impact the performance of the refractories. Cleaning can be done mechanically, using brushes or scrapers, or through chemical methods such as acid cleaning. 4. Thermal cycling: Controlled thermal cycling is often performed to condition and strengthen the monolithic refractories. This involves gradually increasing and decreasing the temperature of the furnace to improve the refractory's resistance to thermal shock. 5. Coating and sealing: Applying protective coatings or sealants to the refractory lining can help enhance its resistance to chemical attack, erosion, and thermal cycling. These coatings act as a barrier, preventing the penetration of molten metals or slags into the refractory material. 6. Monitoring and control: Continuous monitoring of operating conditions such as temperature, pressure, and atmosphere inside the furnace is important to prevent any sudden changes that may negatively affect the refractories. Maintaining proper control over these parameters helps to extend the life of the monolithic refractories. 7. Training and education: Providing regular training and education to furnace operators and maintenance personnel is crucial for them to understand the importance of proper refractory maintenance practices. This ensures that the refractories are handled and operated correctly, reducing the risk of premature failure. Overall, implementing these maintenance practices can significantly prolong the lifespan of monolithic refractories in iron and steel furnaces and maximize their performance, ultimately leading to improved efficiency and cost-effectiveness in the production process.

Q: How do monolithic refractories provide thermal insulation in the iron and steel industry?: Monolithic refractories play a crucial role in providing thermal insulation in the iron and steel industry. These refractories are commonly used to line the furnaces and other high-temperature equipment used in the production processes. One way monolithic refractories provide thermal insulation is by their ability to withstand high temperatures without degrading or melting. They are designed to have high heat resistance, which allows them to be used in environments where temperatures can reach several thousand degrees Celsius. By withstanding these extreme temperatures, the refractories prevent the transfer of heat to the surrounding structure, thus providing insulation. Another way monolithic refractories provide thermal insulation is through their low thermal conductivity. These materials have a low thermal conductivity, meaning they are not efficient in conducting heat. Instead, they trap the heat within their structure and minimize its transfer to the surrounding equipment or environment. This characteristic helps to maintain the temperature inside the furnaces and other high-temperature equipment, allowing for efficient and controlled metal production. Furthermore, monolithic refractories can be applied as a thick lining layer, which creates an additional barrier between the high-temperature environment and the surrounding equipment. The thickness of the refractory lining helps to minimize heat transfer and acts as a buffer, reducing the impact of high temperatures on the structural integrity of the equipment. In addition to providing thermal insulation, monolithic refractories also offer excellent resistance to chemical attack and mechanical wear, which are common challenges in the iron and steel industry. This resistance ensures the longevity of the refractory lining, allowing for consistent and reliable insulation over time. Overall, monolithic refractories provide thermal insulation in the iron and steel industry through their high-temperature resistance, low thermal conductivity, thick lining layer, and resistance to chemical attack and mechanical wear. These properties contribute to maintaining the desired temperature inside the equipment and protecting the surrounding structure from the intense heat generated during metal production processes.

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