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

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

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

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

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 does the composition of monolithic refractories impact their performance?: Determining the performance of monolithic refractories is heavily influenced by their composition. These refractories are unshaped materials used to line furnaces, kilns, and other high-temperature equipment. Their installation convenience and ability to conform to complex shapes make them preferable over traditional brick and mortar refractories. Various components, such as aggregates, binders, and additives, constitute the composition of monolithic refractories. These constituents significantly impact the physical, mechanical, and thermal properties of the refractory material. Aggregates, which are the primary component, provide structural integrity to monolithic refractories. Alumina, silica, magnesia, and carbon are among the materials used for aggregates. Each aggregate possesses unique properties that determine the refractory's resistance to heat, chemical attack, and mechanical stress. For instance, alumina aggregates offer excellent resistance to high temperatures and chemical corrosion, while carbon-based aggregates have high thermal conductivity and are preferred for this reason. The addition of binders enhances the strength and cohesion of the refractory. Common binders include clay, calcium aluminate cement, and colloidal silica. The choice of binder depends on the desired strength, workability, and setting time of the refractory material. Additives are incorporated into the composition to improve specific properties. They can enhance the refractory's resistance to thermal shock, abrasion, or chemical attack. Additives like zirconium oxide, silicon carbide, and graphite are frequently used to enhance the performance of monolithic refractories in specific applications. The proper combination and proportion of these constituents are vital for achieving the desired performance of monolithic refractories. The composition affects the refractory's thermal conductivity, thermal expansion, density, porosity, and chemical resistance. For example, a higher alumina content improves resistance to high temperatures and chemical corrosion, while a higher silica content enhances insulation properties. In conclusion, the performance of monolithic refractories is significantly impacted by their composition. Careful consideration must be given to the selection of aggregates, binders, and additives to achieve desired properties and ensure optimal performance in specific high-temperature applications.

Q: How do monolithic refractories improve the efficiency of reheating furnaces in steel plants?: Monolithic refractories improve the efficiency of reheating furnaces in steel plants by providing a superior lining material that offers high thermal conductivity, excellent heat resistance, and resistance to thermal shock. These refractories help to minimize heat loss and improve heat transfer, resulting in reduced energy consumption and increased furnace productivity. Additionally, the use of monolithic refractories eliminates the need for time-consuming bricklaying, allowing for quicker furnace start-up times and reduced maintenance downtime.

Q: How do monolithic refractories impact the overall productivity of iron and steel operations?: Monolithic refractories have a significant impact on the overall productivity of iron and steel operations. These refractories are used to line the furnaces, ladles, and other high-temperature equipment, providing insulation and protection against extreme heat, chemical reactions, and mechanical wear. By ensuring the integrity and durability of these critical components, monolithic refractories enhance the efficiency and longevity of iron and steel production processes. They minimize downtime caused by frequent repairs or replacements, improve thermal management, and optimize energy consumption. Ultimately, the use of monolithic refractories leads to increased productivity, reduced costs, and improved quality control in iron and steel operations.

Q: What are the advantages of using castables in the iron and steel industry?: There are several advantages of using castables in the iron and steel industry. Firstly, castables offer excellent thermal shock resistance, allowing them to withstand sudden temperature changes during the manufacturing process. This helps to prevent cracking and prolongs the lifespan of the refractory lining. Secondly, castables provide high strength and abrasion resistance, making them suitable for withstanding the harsh conditions of iron and steel production. They can withstand the abrasive nature of molten metal and slag, ensuring long-lasting performance. Additionally, castables offer flexibility in terms of installation. They can be poured or gunned into place, allowing for easy and efficient lining of various shapes and sizes. This flexibility also helps in repairs and maintenance, as damaged areas can be easily patched up. Lastly, castables have good chemical resistance, enabling them to withstand the corrosive effects of molten metal and various metallurgical processes. This resistance helps to maintain the integrity of the refractory lining and ensures consistent production quality. Overall, the advantages of using castables in the iron and steel industry include thermal shock resistance, high strength, abrasion resistance, flexibility in installation, and chemical resistance. These properties contribute to improved efficiency, extended refractory life, and reduced downtime, ultimately benefiting the overall productivity of the industry.

Q: What is the role of monolithic refractories in blast furnaces?: Monolithic refractories play a crucial role in blast furnaces as they provide high-temperature resistance and excellent durability in the harsh operating conditions of the furnace. Blast furnaces are used in the ironmaking process to convert iron ore into molten iron, and monolithic refractories are essential for lining the interior of the furnace. One of the main functions of monolithic refractories in blast furnaces is to withstand extreme temperatures. The interior of a blast furnace can reach temperatures of up to 2,500 degrees Celsius, and monolithic refractories are designed to maintain their structural integrity and protect the furnace lining from thermal shock and erosion caused by the high temperatures. Monolithic refractories also provide insulation, preventing heat loss from the furnace. This is important as it helps to maintain the desired temperature for efficient iron production. By reducing heat loss, monolithic refractories contribute to energy savings and improved overall furnace performance. Another crucial role of monolithic refractories is to resist chemical attack from the molten iron and slag. The materials used in blast furnaces, such as iron ore, coke, and limestone, undergo various chemical reactions during the ironmaking process. Monolithic refractories are engineered to resist the corrosive effects of these reactions, ensuring a longer service life for the furnace lining. Furthermore, monolithic refractories offer excellent mechanical strength and resistance to abrasion. The materials being processed in a blast furnace, including iron ore and coke, can be abrasive. Monolithic refractories provide a protective barrier against the abrasive action, preventing damage to the furnace lining and extending its lifespan. In summary, the role of monolithic refractories in blast furnaces is to withstand extreme temperatures, provide insulation, resist chemical attack, and offer mechanical strength against abrasion. These properties contribute to the efficient operation and longevity of blast furnaces, enabling the production of molten iron for various industrial applications.

Q: What are the different types of monolithic refractories used in the iron and steel industry?: The iron and steel industry relies on various types of monolithic refractories for their exceptional thermal resistance, strength, and durability. These refractories are crucial in withstanding extreme temperatures and harsh conditions in a range of applications. Firstly, there are castables, which are precast refractory materials that form a slurry when mixed with water. This slurry is then poured or cast into molds. Castables are widely used in the iron and steel industry to line ladles, tundishes, and furnaces due to their high strength and resistance to thermal shock. Another type is ramming mass, which is used to line induction furnaces and melting units. It is composed of refractory aggregates, binders, and additives. Ramming mass is applied by ramming or tamping it into place, creating a dense lining capable of withstanding high temperatures and chemical attacks. Gunning mix is a refractory material applied using a pneumatic gunning machine. It is particularly useful for repairing or lining various areas of furnaces, especially during hot repairs. Gunning mix consists of refractory aggregates, binders, and additives that are sprayed onto the lining surface and then compacted. Plastic refractories, on the other hand, are mixtures of refractory aggregates and binders with high plasticity. They can be easily molded or shaped, making them ideal for repairing or patching refractory linings in the iron and steel industry. Plastic refractories are typically applied by hand or with a trowel and are suitable for both hot and cold applications. Lastly, refractory mortars are used for jointing or repairing refractory bricks or other monolithic refractories. They are composed of refractory powders, binders, and water. Mortars provide excellent adhesion between bricks or monolithic materials, ensuring a strong and durable lining in furnaces, ladles, and other high-temperature equipment. These various types of monolithic refractories are indispensable in the iron and steel industry. They provide reliable and long-lasting linings, ensuring efficient operations and minimizing downtime.

Q: What are the challenges in repairing and maintaining monolithic refractories?: Repairing and maintaining monolithic refractories poses several challenges. One primary challenge lies in the intricate composition of the materials used in these refractories. They typically consist of various components, including aggregates, binders, and additives. The selection and proportioning of these components significantly affect the refractory's performance and durability, making it difficult to determine the most appropriate repair or maintenance method. Another obstacle arises from the extremely high temperatures at which monolithic refractories operate. These materials are specifically designed to withstand extreme heat, ranging from several hundred to several thousand degrees Celsius. Repairing or maintaining them under such conditions necessitates specialized equipment and techniques to ensure worker safety and repair integrity. Moreover, monolithic refractories often face harsh environments, such as corrosive gases, chemical reactions, and mechanical stresses. These factors can lead to gradual degradation and damage, requiring regular inspections and maintenance. However, identifying and addressing these issues promptly can be challenging as the damage may not always be visible or easily accessible. Furthermore, monolithic refractories are commonly employed in complex industrial processes like steelmaking, cement manufacturing, and petrochemical production. These processes typically involve continuous operation, limiting the available time for repairs and maintenance. Finding suitable windows of opportunity for maintenance and coordinating process shutdowns can pose logistical challenges. Lastly, the cost of repairing and maintaining monolithic refractories can be substantial. The materials used in these refractories tend to be expensive, and the labor and equipment required for repairs and maintenance can accumulate costs. Striking a balance between repair expenses, productivity maintenance, and extending the refractories' service life can challenge plant operators and maintenance teams. In conclusion, the challenges associated with repairing and maintaining monolithic refractories arise from the complex materials used, the high temperatures involved, the harsh operating environments, the complexity of industrial processes, and the cost considerations. Overcoming these challenges necessitates expertise, meticulous planning, and effective coordination to ensure the longevity and optimal performance of monolithic refractories.

Q: How do monolithic refractories improve the performance of ladles and tundishes?: Monolithic refractories improve the performance of ladles and tundishes by providing superior thermal insulation, high mechanical strength, and resistance to chemical attacks and thermal shocks. These qualities enhance the overall durability and longevity of the ladles and tundishes, reducing the need for frequent repairs or replacements. Additionally, monolithic refractories offer better flow properties, facilitating smooth and efficient pouring of molten metal, while minimizing the risk of slag or metal infiltration. Overall, the use of monolithic refractories improves the efficiency, productivity, and cost-effectiveness of ladles and tundishes in various industrial applications.

Q: What are the typical applications of monolithic refractories in blast furnaces?: Due to their unique properties and applications, monolithic refractories find extensive use in blast furnaces. These refractories consist of a single, uniform material that can be shaped and installed in various forms without the need for joints or seams. This particular characteristic makes them highly suitable for lining and safeguarding the different zones of a blast furnace. One common use of monolithic refractories in blast furnaces is for lining the hearth, which is the lowermost part of the furnace where molten iron and slag collect. Monolithic refractories are employed to create a sturdy and heat-resistant lining capable of withstanding the extreme temperatures and chemical reactions that occur in this region. Another frequent application is the lining of the bosh, the transitional zone between the hearth and the blast furnace's stack. The bosh is subjected to elevated temperatures and mechanical stresses resulting from the movement of burden materials. To ensure its longevity and efficiency, monolithic refractories with high thermal shock resistance and abrasion resistance are utilized. Monolithic refractories are also utilized for lining the stack and the tuyere area. The stack refers to the vertical portion of the furnace where iron ore reduction takes place, while the tuyere area is where hot air blast is injected into the furnace. Both these areas necessitate refractories capable of withstanding high temperatures, chemical reactions, and mechanical stresses. Moreover, monolithic refractories find application in the repair and maintenance of blast furnaces. Due to the harsh conditions inside the furnace, the lining may deteriorate over time. Monolithic refractories can be easily applied as patching materials to restore the lining's integrity and extend the furnace's lifespan. In summary, monolithic refractories play a crucial role in blast furnaces by lining the hearth, bosh, stack, and tuyere area, as well as facilitating repairs and maintenance. These refractories offer exceptional thermal shock resistance, abrasion resistance, and durability, making them indispensable for the efficient operation of blast furnaces in the iron and steel industry.

Q: What are the recommended storage and handling practices for monolithic refractories?: To ensure optimal performance and longevity of monolithic refractories, it is crucial to adhere to recommended storage and handling practices. Take note of the following key practices: 1. Storage: Store monolithic refractories in a clean, dry, and well-ventilated area. Protect the storage facility from moisture, extreme temperatures, and direct sunlight. Ideally, use pallets or racks to prevent contact with the ground and minimize the risk of damage. 2. Handling: Handle monolithic refractories with care to avoid physical damage. Use appropriate lifting equipment, such as forklifts or cranes, to lift and move the refractories. This will prevent excessive stress or strain on the material. Avoid dropping or dragging them, as this can cause cracks or fractures. 3. Packaging: Inspect the packaging for any signs of damage or moisture before accepting the delivery. Damaged packaging may indicate potential damage to the refractory material. Immediately inform the supplier if any anomalies are noticed. 4. Moisture control: Protect monolithic refractories from direct contact with water or excessive humidity during storage and handling. Moisture absorption can reduce performance and structural integrity. If refractories become wet, thoroughly dry them before use to eliminate absorbed moisture. 5. Stack height: Consider the stack height when storing monolithic refractories. Excessive stacking can apply pressure on lower layers, leading to deformation or cracking. Follow the manufacturer's recommendations for maximum stack height to ensure 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 visible abnormalities. If any issues are identified, consult the manufacturer or a refractory expert to determine if the material is still suitable for use. By adhering to these recommended storage and handling practices, you can minimize the risk of damage to monolithic refractories, optimize their performance, extend their service life, and ensure their effectiveness in high-temperature applications.

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