Alumina-Spinel Castable for Ladle
- Ref Price:
-
$1,312.11 - 1,603.69
/ m.t.
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 2 MT m.t.
- Supply Capability:
- 5000 Tons Per Month m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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General Information of Alumina-Spinel Castable for Ladle
ALRE alumina-spinel castable for ladle made strictly as per international standards, is known for its long operating life, excellent corrosion resistance and high refractoriness.
Technical data of Alumina-Spinel Castable for Ladle
Item | Alumina spinel castable | ||||
Al2O3 | % | ≥ | 72 | ||
MgO | % | ≥ | 10 | ||
CaO | % | — | |||
SiO2 | % | ≤ | 9 | ||
SiO2+ Fe2O3+ Al2O3 | % | ≤ | |||
Bulk density ≥ | g/cm3 | — | |||
C.C.S. (MPa) ≥ | 110℃×24hrs | 90 | |||
1500℃×3hrs | 100 | ||||
M.O.R.(MPa) ≥ | 110℃×24hrs | 11.5 | |||
1500℃×3hrs | 11.5 | ||||
Refractoriness (℃) ≥ | — | ||||
Grain size (mm) ≤ | — | ||||
Permanent linear change | 1500℃×2hrs | -0.2~0.35 | |||
1500℃×3hrs | — | ||||
Life time (hr) | — | ||||
Production line and Packing of Alumina-Spinel Castable for Ladle
Feature of Alumina-Spinel Castable for Ladle
Long operating life
Easy execution and mending
Excellent corrosion and scouring resistance of iron steel
Application of Alumina-Spinel Castable for Ladle
ALRE alumina-spinel castable could be used widely for lining of ladles in steel and iron industry.
- Q: What are the key trends in the use of monolithic refractories in the iron and steel industry?
- It is worth noting that there are several notable trends in the use of monolithic refractories in the iron and steel industry. First and foremost, there is an increasing demand for monolithic refractories due to their superior performance characteristics in comparison to traditional brick refractories. Monolithic refractories provide higher thermal shock resistance, superior insulation properties, and improved resistance to chemical attacks. As a result, they are being used more extensively in various applications within the iron and steel industry. Secondly, there is a shift towards the utilization of low-cement and ultra-low cement castables in monolithic refractories. These materials contain a reduced amount of cement, leading to enhanced refractory properties such as increased strength, better corrosion resistance, and improved resistance to thermal spalling. This trend is driven by the need to enhance the overall efficiency and longevity of refractory linings in iron and steel manufacturing processes. Another significant trend is the development of advanced monolithic refractories that prioritize sustainability and environmental performance. The iron and steel industry is facing mounting pressure to reduce its carbon footprint and minimize its impact on the environment. Consequently, there is a growing emphasis on the use of environmentally friendly binders and additives in monolithic refractories. These novel materials not only offer excellent refractory properties but also contribute to the industry's sustainability objectives. Moreover, there is an increasing focus on the development of monolithic refractories capable of withstanding extreme operating conditions. Iron and steel manufacturing processes involve high temperatures, aggressive chemical environments, and severe mechanical stresses. Consequently, there is a need for monolithic refractories that can withstand these harsh conditions without compromising their performance. The industry is investing in research and development to create refractories that exhibit exceptional resistance to thermal shock, abrasion, and erosion. Lastly, there is a growing adoption of digital and smart technologies for the monitoring and maintenance of monolithic refractories. Advances in sensor technology and data analytics have made it possible to collect real-time data on the condition and performance of refractory linings. This enables proactive maintenance, early detection of potential issues, and optimization of refractory usage, ultimately leading to improved operational efficiency and cost savings. In conclusion, the use of monolithic refractories in the iron and steel industry is witnessing key trends such as the demand for superior performance, the shift towards low-cement and ultra-low cement castables, the development of sustainable materials, the focus on extreme operating conditions, and the adoption of digital and smart technologies for monitoring and maintenance. These trends reflect the industry's continuous efforts to enhance the efficiency, durability, and environmental sustainability of refractory linings in iron and steel manufacturing processes.
- Q: How do monolithic refractories help in reducing energy consumption in iron and steel production?
- Monolithic refractories help in reducing energy consumption in iron and steel production by providing efficient insulation and heat retention properties. These refractories have low thermal conductivity, which minimizes heat loss and ensures that the generated heat is effectively utilized for the production processes. Their high refractoriness allows them to withstand extreme temperatures, reducing the need for frequent repairs or replacements that would require additional energy consumption. Additionally, monolithic refractories offer better resistance to thermal shock, which prevents thermal stress-induced cracks and extends their lifespan. Overall, the use of monolithic refractories in iron and steel production aids in optimizing energy usage and improving overall energy efficiency.
- Q: What are the typical operating temperatures for monolithic refractories?
- The typical operating temperatures for monolithic refractories vary depending on the specific composition and type of refractory material. However, in general, monolithic refractories are designed to withstand high temperatures ranging from 1500°C (2732°F) to 1800°C (3272°F) and even higher in some cases. These refractories are commonly used in industries such as steelmaking, cement production, glass manufacturing, and petrochemical processing, where they are subjected to extreme thermal conditions. Different types of monolithic refractories have different temperature limits. For instance, basic refractories made of magnesia or dolomite can withstand temperatures up to 1800°C (3272°F). On the other hand, alumina-based refractories can typically handle temperatures up to 1700°C (3092°F). Silicon carbide-based refractories have even higher temperature resistance, with the ability to withstand temperatures above 2000°C (3632°F). It is crucial to select the appropriate monolithic refractory material based on the specific operating temperature requirements of the application. Using refractories beyond their recommended temperature limits can cause thermal shock, spalling, or reduced performance, leading to potential equipment failure or safety hazards. Therefore, consulting with refractory manufacturers or experts in the field is essential to ensure the correct selection and optimal performance of monolithic refractories in high-temperature applications.
- Q: How do monolithic refractories contribute to the overall productivity of iron and steel production?
- Monolithic refractories play a critical role in enhancing the overall productivity of iron and steel production. These refractories are essential components used in the lining of high-temperature furnaces and other equipment used in these industries. One way monolithic refractories contribute to productivity is by providing excellent thermal insulation. With their high thermal conductivity, they help to reduce heat loss from the furnaces, thereby minimizing energy consumption and improving overall efficiency. This insulation property allows for higher operating temperatures, leading to faster and more efficient production processes. Additionally, monolithic refractories offer superior resistance to thermal shock and chemical corrosion. In the iron and steel production process, various harsh conditions are encountered, such as rapid temperature changes and exposure to molten metal and slag. Monolithic refractories are designed to withstand these extreme environments, ensuring longer service life and reduced downtime for maintenance and repairs. This directly translates to increased productivity and reduced production costs. Moreover, monolithic refractories provide better dimensional stability compared to traditional brick refractories. Their ability to conform to complex shapes and structures allows for improved lining design, facilitating better heat transfer and distribution. This uniformity in heat distribution contributes to enhanced process control and greater consistency in product quality. Furthermore, the installation and repair of monolithic refractories are relatively easier and faster compared to traditional brick refractories. This ease of installation and repair reduces downtime during maintenance, allowing for more continuous production. The shorter downtime leads to increased productivity and higher output. In summary, monolithic refractories contribute to the overall productivity of iron and steel production by providing excellent thermal insulation, resistance to thermal shock and chemical corrosion, better dimensional stability, and ease of installation and repair. These properties result in improved energy efficiency, reduced downtime, enhanced process control, and higher product quality, ultimately leading to increased productivity and profitability for the 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 such as the specific type of refractory material used, the operating conditions, and the maintenance practices. However, on average, monolithic refractories in iron and steel applications can last anywhere from a few months to several years.
- Q: What are the key considerations when selecting monolithic refractories for tundish applications?
- When selecting monolithic refractories for tundish applications, there are several key considerations that should be taken into account. First and foremost, the refractory material must have excellent thermal shock resistance. Tundishes are subjected to extreme temperature fluctuations, as molten metal is poured into them and then drained out. A refractory material with poor thermal shock resistance will quickly degrade and fail under these conditions, leading to costly repairs and downtime. Another important consideration is the refractory's resistance to chemical attack. Tundishes are often exposed to aggressive chemical environments, as they come into contact with molten metal and various slag compositions. The refractory material must be able to withstand these corrosive elements and maintain its integrity over time. Additionally, the refractory's mechanical strength is crucial. Tundishes are subject to physical stresses, such as the weight of the molten metal and the movement of the tundish itself. A weak refractory material will be prone to cracking and failure, jeopardizing the overall performance and longevity of the tundish. The ease of installation and repair should also be considered. Monolithic refractories are typically cast or gunned in place, so it is important to select a material that can be easily applied and shaped to fit the tundish design. Similarly, if repairs are necessary, the refractory material should be capable of being patched or replaced without significant disruption to operations. Finally, cost is always a consideration. While it is important to select a high-quality refractory material that meets the specific requirements of the tundish, it is also necessary to consider the overall cost-effectiveness. This includes the initial material cost, installation and repair expenses, and the expected lifespan of the refractory. In summary, the key considerations when selecting monolithic refractories for tundish applications include thermal shock resistance, chemical resistance, mechanical strength, ease of installation and repair, and cost-effectiveness. By carefully evaluating these factors, one can choose a refractory material that will provide optimal performance and durability in tundish applications.
- Q: How do monolithic refractories help in enhancing the durability of iron and steel equipment?
- Monolithic refractories play a vital role in increasing the durability of iron and steel equipment. They offer high resistance to extreme temperatures, chemical attack, and mechanical wear. Unlike traditional brick or castable refractories, monolithic refractories are made from a single, uniform material, making them stronger and more reliable. The ability of monolithic refractories to withstand high temperatures is crucial in iron and steel manufacturing processes. They can endure temperatures above 3000°F (1650°C) without losing their structural integrity, preventing premature equipment failure. This thermal resistance helps maintain the shape and structure of the refractory lining, ensuring efficient and consistent equipment performance. In addition to their heat resistance, monolithic refractories also possess excellent chemical resistance. This is important because iron and steel equipment often comes into contact with corrosive substances like molten metal, slag, and various chemicals. The ability of monolithic refractories to resist chemical attack prevents degradation and erosion of the equipment's lining, extending its lifespan. Moreover, monolithic refractories provide exceptional mechanical strength and wear resistance. The equipment is constantly exposed to abrasive materials, physical impacts, and mechanical stress, which can cause severe damage. However, the dense and compact structure of monolithic refractories makes them highly resistant to mechanical wear, minimizing the risk of erosion and spalling. The flexibility and versatility of monolithic refractories further enhance the durability of iron and steel equipment. They can be easily molded, shaped, and installed in complex geometries, ensuring a tight and precise fit. This eliminates the formation of gaps or weak points, which could result in thermal or chemical leakage, reducing the risk of equipment failure. In conclusion, the use of monolithic refractories significantly improves the durability of iron and steel equipment. They offer exceptional resistance to high temperatures, chemical attack, and mechanical wear. By ensuring the longevity and reliability of the equipment, monolithic refractories enhance operational efficiency and cost-effectiveness in the iron and steel industry.
- Q: What are the recommended installation techniques for monolithic refractories?
- The installation techniques for monolithic refractories depend on the specific type and application of the refractory material. However, there are general guidelines that can be followed for most installations of monolithic refractories. 1. Surface Preparation: Prior to installing monolithic refractories, it is essential to ensure that the surface is clean, dry, and free from loose particles or contaminants. This can be accomplished by removing any existing refractory materials, thoroughly cleaning the surface, and allowing it to completely dry. 2. Mixing: Monolithic refractories are typically supplied in either a dry or wet form, depending on the specific material. If the refractory is in a dry form, it must be mixed with water or a suitable liquid binder to achieve a workable consistency. It is important to follow the manufacturer's guidelines for the correct mixing ratio and duration to ensure proper bonding and setting of the refractory material. 3. Application: The technique for applying monolithic refractories can vary depending on the specific material and desired installation method. Some common techniques include troweling, gunning, ramming, and casting. - Troweling: This involves manually applying the refractory material with a trowel, typically used for thin linings or patching small areas. - Gunning: Gunning is a method of applying refractory material using a gunning machine or handheld gun. It is suitable for large areas or areas that are difficult to access. The refractory material is mixed with water or a liquid binder and sprayed onto the surface at a high velocity. - Ramming: Ramming involves compacting the refractory material into place using a ramming tool or pneumatic hammer. It is commonly used for forming furnace linings or repairing damaged areas. - Casting: Casting refers to pouring the refractory material into a mold to create a desired shape or lining. It is often used for complex shapes or large-sized components. 4. Curing and Drying: Once the refractory material is applied, it must be properly cured and dried to achieve its maximum strength and thermal properties. The curing and drying process may vary depending on the specific material, but typically involves controlled heating at a gradual rate to eliminate any remaining moisture and allow the refractory to set and harden properly. It is important to note that these are general guidelines, and it is always recommended to consult the manufacturer's instructions and specifications for the specific monolithic refractory material being used. Following the recommended installation techniques will help ensure the proper performance and longevity of the refractory lining.
- Q: What are the typical applications of monolithic refractories in blast furnaces?
- Monolithic refractories are commonly used in blast furnaces for various applications, including lining the hearth, taphole, and slag line, as well as repairing cracks and erosion in the furnace lining. They are also used to create a protective barrier against high temperatures, chemical reactions, and mechanical stresses inside the blast furnace.
- Q: How do monolithic refractories improve the efficiency of ladle and tundish drying furnaces?
- The efficiency of ladle and tundish drying furnaces is enhanced by monolithic refractories in multiple ways. To begin with, monolithic refractories provide a high level of thermal insulation. These refractories possess low thermal conductivity, effectively minimizing heat transfer from the furnace to the surrounding environment. This insulation property helps to reduce heat losses and maintain a higher temperature within the furnace for a longer duration. Consequently, the drying process becomes more efficient as the heat is retained within the furnace, resulting in a decrease in overall energy consumption. Furthermore, monolithic refractories exhibit exceptional resistance to thermal shock. The rapid temperature fluctuations that occur during the heating and cooling cycles of the furnace can cause stress and cracks in the refractory material. However, monolithic refractories are designed to withstand these thermal shocks and maintain their structural integrity. This durability ensures a longer lifespan for the refractory lining, reducing the need for frequent repairs or replacements. Consequently, the furnace operates at optimal efficiency without the downtime associated with maintenance. In addition, monolithic refractories offer excellent mechanical strength and abrasion resistance. These properties are crucial in ladle and tundish drying furnaces, which are subjected to mechanical stresses and abrasive substances like molten metal and slag. The use of monolithic refractories ensures that the lining can endure these harsh conditions without suffering structural damage. This resistance to wear and tear increases the overall efficiency of the furnace, enabling it to operate uninterrupted for longer periods. Lastly, monolithic refractories provide greater design flexibility compared to traditional brick or tile refractories. They can be easily cast or gunned onto the lining surface, simplifying installation and repair processes. This flexibility allows the furnace to be customized and adapted to meet specific requirements, ensuring optimal heat distribution and efficient drying processes. In conclusion, monolithic refractories enhance the efficiency of ladle and tundish drying furnaces through their thermal insulation, resistance to thermal shock, mechanical strength, and design flexibility. By reducing heat losses, increasing durability, withstanding harsh conditions, and facilitating easy installation and repair, these refractories optimize the performance and energy efficiency of the furnaces.
We are an industrial enterprise of refractories integrating the scientific research, design, production and engineering service. With first-class quality of products, high-efficient and prompt after-sale service, our products are not only well sold in many domestic large steel enterprises and coking enterprises, but also widely exported to more than 23 countries and regions.
1. Manufacturer Overview
| Location | Henan, China |
| Year Established | 2007 |
| Annual Output Value | Above US$ 200 Million |
| Main Markets | North America;Asia;Western Europe;Africa;Russia;Middle East |
| Company Certifications | ISO 9001:2008 |
2. Manufacturer Certificates
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period |
3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | Tianjin |
| Export Percentage | 20% - 30% |
| No.of Employees in Trade Department | 10-20 People |
| Language Spoken: | English; Chinese |
| b) Factory Information | |
| Factory Size: | Above 150,000 square meters |
| No. of Production Lines | Above 10 |
| Contract Manufacturing | Installation guide, OEM Service Offered |
| Product Price Range | High; Average |
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Alumina-Spinel Castable for Ladle
- Ref Price:
-
$1,312.11 - 1,603.69
/ m.t.
- Loading Port:
- China Main Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 2 MT m.t.
- Supply Capability:
- 5000 Tons Per Month 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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