Monolithic Refractories for Iron and Steel Industry - High Alumina Plastic Castable for Hot Blast Stove
- Ref Price:
-
$417.81 - 510.65
/ 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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General Information of High Alumina Plastic Castable for Hot Blast Stove
ALRE high-alumina plastic castable for hot blast stove made strictly as per international standards, is known for its long operating life, excellent corrosion resistance and high refractoriness.
Technical data of High Alumina Plastic Castable for Hot Blast Stove
Item | High-alumina plastic castable | ||||
CJS-1600 | |||||
Al2O3 | % | ≥ | 55 | 65 | |
SiO2+C | % | ≥ | --- | --- | |
CaO | % | ≤ | --- | --- | |
MgO | % | ≥ | |||
SiO2 | % | ≤ | 40 | 30 | |
Bulk density g/cm3）≥ | 110℃×24h | 2.3 | 2.4 | ||
1000℃×3h | --- | --- | |||
1450℃×3h | --- | --- | |||
1500℃×3h | --- | --- | |||
110℃×24h | --- | --- | |||
1450℃×3h | --- | --- | |||
M.O.R. (MPa)≥ | 110℃×24h | 5-7 | 5-8 | ||
1000℃×3h | --- | --- | |||
1450℃×3h | --- | --- | |||
1500℃×3h | 10 | 12 | |||
Linear change after heating | 110℃×24h | -0.2~0 | -0.2~0 | ||
1000℃×3h | |||||
1450℃×3h | |||||
1500℃×3h | 0~+0.5 | 0~+0.5 | |||
Max. service temperature (℃) | 1500 | 1600 | |||
Using area | Linings of heating furnace of steel rolling, incinerator (Ramming construction method) | ||||
Production line and Packing of High Alumina Plastic Castable for Hot Blast Stove
Feature of High Alumina Plastic Castable for Hot Blast Stove
Easy execution and mending
Excellent corrosion and scouring resistance of iron steel
Application of High Alumina Plastic Castable for Hot Blast Stove
ALRE high-alumina plastic castable for hot blast stove could be used widely for linings of heating furnace of steel rolling, incinerator.
- Q: How are monolithic refractories inspected and tested for quality assurance?
- Monolithic refractories are inspected and tested for quality assurance through a series of rigorous processes to ensure their reliability and performance. These inspections and tests are crucial in maintaining consistent quality standards and identifying any potential defects or weaknesses in the refractory material. Firstly, visual inspections are conducted to check for any visible defects such as cracks, spalling, or signs of poor manufacturing. This step helps identify any obvious issues that may affect the refractory's performance. Next, physical properties such as density, porosity, and thermal conductivity are measured using specialized equipment. These measurements are compared against predetermined standards to ensure the refractory material meets the required specifications. Density and porosity are important indicators of the refractory's strength and resistance to heat and chemicals, while thermal conductivity determines its ability to transfer heat efficiently. In addition, mechanical tests are performed to assess the refractory's strength and resistance to mechanical stress. This involves subjecting the material to compressive, tensile, and flexural forces to evaluate its structural integrity and durability. To ensure the refractory's performance in high-temperature environments, thermal tests are conducted. These tests involve exposing the refractory to extreme temperatures and monitoring its behavior. Thermal expansion and shrinkage, resistance to thermal shock, and thermal cycling are some of the parameters evaluated during these tests. Chemical analysis is another important aspect of quality assurance for monolithic refractories. Samples of the refractory material are analyzed to determine their chemical composition and assess their resistance to various corrosive environments. This analysis helps ensure that the refractory is suitable for the specific applications it will be used in. Lastly, field tests may be conducted at actual operating sites to evaluate the refractory's performance under real-world conditions. These tests involve monitoring the refractory's behavior in terms of wear and tear, thermal insulation, and resistance to chemical attack. The results obtained from field tests are crucial in validating the refractory's performance and making any necessary adjustments to the manufacturing process. Overall, monolithic refractories undergo a comprehensive inspection and testing process, encompassing visual inspections, physical and mechanical tests, thermal analysis, chemical analysis, and field tests. This systematic approach ensures that the refractories meet the required quality standards, providing reliability and longevity in the demanding environments they are designed for.
- Q: How does the composition of monolithic refractories impact their performance?
- The composition of monolithic refractories plays a crucial role in determining their performance. Monolithic refractories are essentially unshaped refractory materials that are used to line furnaces, kilns, and other high-temperature equipment. They are preferred over traditional brick and mortar refractories due to their ease of installation and ability to conform to complex shapes. The composition of monolithic refractories includes various components such as aggregates, binders, and additives. The type and proportion of these constituents significantly influence the physical, mechanical, and thermal properties of the refractory material. Aggregates are the major component of monolithic refractories and provide the structural integrity. They can be made of various materials like alumina, silica, magnesia, and carbon. Each aggregate has its own unique properties that determine the refractory's resistance to heat, chemical attack, and mechanical stress. For example, alumina aggregates offer excellent resistance to high temperatures and chemical corrosion, while carbon-based aggregates are preferred for their high thermal conductivity. Binders are added to the mix to provide cohesion and improve the refractory's strength. Common binders include clay, calcium aluminate cement, and colloidal silica. The selection of binders depends on the desired strength, workability, and setting time of the refractory material. Additives are incorporated in the composition to enhance specific properties. They can improve the refractory's resistance to thermal shock, abrasion, or chemical attack. Additives like zirconium oxide, silicon carbide, and graphite are often used to enhance the performance of monolithic refractories in specific applications. The proper combination and proportion of these constituents are crucial for achieving the desired performance of monolithic refractories. The composition affects the refractory's thermal conductivity, thermal expansion, density, porosity, and chemical resistance. For instance, a higher alumina content would improve the refractory's resistance to high temperatures and chemical corrosion, while a higher silica content would enhance its insulating properties. In conclusion, the composition of monolithic refractories has a significant impact on their performance. The selection of aggregates, binders, and additives must be carefully considered to achieve the desired properties and ensure optimal performance in specific high-temperature applications.
- Q: How are monolithic refractories recycled or disposed of at the end of their lifespan?
- Monolithic refractories, widely utilized in high-temperature industrial applications, offer various means of recycling or disposal once their lifespan concludes. The preferred approach depends on the specific monolithic refractory type and its composition. Reclamation stands as a common method for recycling monolithic refractories. This process entails collecting used refractory materials and subjecting them to processing to eliminate any impurities or contaminants. The resultant reclaimed refractory material can then be crushed, ground, or milled into a fine powder suitable for utilization as a raw material in manufacturing new refractories. Thermal treatment represents an alternative means of recycling monolithic refractories. This method involves exposing the used refractory material to high temperatures within a controlled environment, such as a kiln or furnace. The heat effectively breaks down the refractory material, eliminating any binders or impurities. The resulting material can then be reused as a raw material or integrated into other applications, such as construction aggregates. When recycling is not feasible, specialized facilities designed for handling and treating hazardous waste offer a disposal avenue for monolithic refractories. These facilities ensure the proper containment and treatment of the refractory material, minimizing any potential environmental impact. This disposal method is typically reserved for refractories containing hazardous substances or those that cannot be recycled due to their composition. It is important to emphasize that the appropriate disposal or recycling method for monolithic refractories must adhere to local regulations and guidelines. These regulations aim to ensure the safe handling, treatment, and disposal of these materials, taking into account their potential environmental and health effects. Therefore, industries and businesses must collaborate closely with waste management professionals and adhere to the appropriate procedures to responsibly manage monolithic refractories at the end of their lifespan.
- Q: What are the main causes of monolithic refractory failure in the iron and steel industry?
- There are several main causes of monolithic refractory failure in the iron and steel industry. One of the primary causes is thermal cycling. The extreme temperatures experienced in iron and steel manufacturing processes, such as melting, casting, and heat treating, subject the refractory lining to significant thermal stress. This repeated expansion and contraction of the material can lead to cracking, spalling, or even complete disintegration of the refractory. Another common cause of failure is chemical attack. The iron and steel industry involves the use of various chemicals, including molten metal, slag, and gases, which can react with the refractory lining. This chemical interaction can cause erosion, corrosion, or chemical decomposition of the refractory material, leading to its failure over time. Mechanical stress is also a significant factor in monolithic refractory failure. The heavy machinery and equipment used in iron and steel production can generate vibrations, shocks, and impacts that can weaken or damage the refractory lining. Additionally, improper installation or design can result in mechanical stress concentration points, making the refractory more susceptible to failure. Furthermore, improper maintenance and operational practices can contribute to refractory failure. Inadequate cooling or heating procedures, improper drying and curing of the refractory, and insufficient cleaning and inspection can all impact the longevity and performance of the material. Lack of regular maintenance and timely repairs can exacerbate small issues, leading to more significant failures over time. Lastly, the choice of refractory material and its quality can play a significant role in failure. Selecting an inappropriate refractory for the specific application or using low-quality materials can result in premature failure. It is crucial to consider factors such as temperature range, chemical exposure, and mechanical stress when choosing the refractory lining to ensure its suitability and durability in the iron and steel industry. In summary, the main causes of monolithic refractory failure in the iron and steel industry are thermal cycling, chemical attack, mechanical stress, improper maintenance and operational practices, and the choice and quality of refractory material. Addressing these factors through proper installation, regular maintenance, and careful material selection can help mitigate refractory failures and improve the overall efficiency and productivity of iron and steel production processes.
- Q: What are the key characteristics of monolithic refractories for electric arc furnace applications?
- Monolithic refractories designed for electric arc furnace applications possess several crucial qualities that render them suitable for the challenging conditions and extreme temperatures encountered in these environments. To begin with, monolithic refractories exhibit exceptional resistance to thermal shock. Electric arc furnaces operate at exceedingly high temperatures, and the rapid fluctuations in temperature during the melting and refining processes can subject the refractories to significant thermal stress. Monolithic refractories, however, are engineered to endure these thermal shocks without developing cracks or spalling, thereby guaranteeing the durability and performance of the lining. Moreover, monolithic refractories boast a high resistance to chemical attack. Electric arc furnaces involve the melting and refining of diverse metals and alloys, which can generate highly corrosive atmospheres. Monolithic refractories incorporate chemically inert materials and additives that bestow resistance against the corrosive impact of molten metals and slag, safeguarding the lining against chemical deterioration. Another noteworthy characteristic of monolithic refractories for electric arc furnace applications is their exceptional refractoriness. Refractoriness denotes a material's ability to retain its strength and integrity at elevated temperatures. Electric arc furnaces typically operate at temperatures surpassing 1500°C, and monolithic refractories are specifically engineered to endure these extreme conditions without experiencing substantial loss of properties or degradation. Furthermore, monolithic refractories offer efficient thermal conductivity. This property facilitates efficient heat transfer throughout the lining, ensuring uniform heating and melting of the charge material. It also helps minimize the occurrence of hot spots and thermal gradients, which can result in uneven wear and premature failure of the lining. Lastly, monolithic refractories are renowned for their ease of installation and repair. Unlike traditional brick or block refractories, monolithic materials can be cast, sprayed, or rammed into place, eliminating the need for intricate masonry work. This not only saves time and labor but also enables convenient maintenance and repair of the lining, reducing downtime and enhancing overall furnace efficiency. In conclusion, monolithic refractories for electric arc furnace applications possess exceptional thermal shock resistance, high chemical resistance, high refractoriness, efficient thermal conductivity, and ease of installation and repair. These qualities render monolithic refractories ideal for withstanding the harsh conditions and demanding requirements of electric arc furnace operations.
- Q: How are monolithic refractories used in the repair and maintenance of ladle and tundish linings?
- Monolithic refractories are a type of refractory material that is commonly used in the repair and maintenance of ladle and tundish linings in the steel industry. These linings are crucial components of ladles and tundishes, which are used for the transportation and treatment of molten metal during the steelmaking process. When ladle and tundish linings are subjected to high temperatures and corrosive environments, they can deteriorate over time. This deterioration can lead to various issues such as heat loss, contamination of molten metal, and reduced refractory lining lifespan. To address these problems, monolithic refractories are used as repair and maintenance materials. Monolithic refractories are typically made from a combination of different refractory aggregates, binders, and additives. They are available in various forms, such as castables, gunning mixes, and ramming mixes. These materials are designed to be easily applied and shaped to conform to the specific geometry and dimensions of the ladle or tundish lining. During the repair process, the damaged areas of the lining are removed, and the monolithic refractories are then applied to these areas. Castables can be poured and vibrated into place, while gunning mixes can be sprayed using a high-pressure gunning machine. Ramming mixes, on the other hand, are manually compacted into the lining using a ramming tool. Monolithic refractories offer several advantages in the repair and maintenance of ladle and tundish linings. Firstly, their flexibility allows for easy installation and shaping, ensuring a snug fit to the lining. This helps to maximize the effectiveness of the refractory lining in preventing heat loss and maintaining the integrity of the ladle or tundish. Secondly, monolithic refractories have excellent thermal shock resistance and resistance to chemical attack. This makes them highly durable and capable of withstanding the harsh conditions encountered in ladles and tundishes. They can withstand repeated heating and cooling cycles without cracking or spalling, providing long-lasting protection to the lining. Lastly, monolithic refractories can be easily repaired and replaced when necessary. Their application and removal processes are relatively straightforward, allowing for efficient maintenance of ladle and tundish linings. This helps to minimize downtime and maintain the overall productivity of the steelmaking process. In conclusion, monolithic refractories play a crucial role in the repair and maintenance of ladle and tundish linings. Their ease of application, excellent thermal shock resistance, and resistance to chemical attack make them ideal materials for extending the lifespan and optimizing the performance of these linings in the steel industry.
- 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: 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 emissions in iron and steel plants?
- Monolithic refractories play a crucial role in reducing emissions in iron and steel plants through their superior thermal insulation properties. These refractories line the furnaces and other high-temperature equipment, preventing heat loss and enhancing energy efficiency. By minimizing heat wastage, monolithic refractories enable iron and steel plants to operate at higher temperatures, leading to increased combustion efficiency and reduced fuel consumption. This, in turn, results in lower greenhouse gas emissions, making monolithic refractories an essential component in the overall efforts to mitigate environmental impact in the iron and steel industry.
- Q: What are the specific requirements of monolithic refractories for continuous casting applications?
- The specific requirements of monolithic refractories for continuous casting applications include high thermal shock resistance, excellent erosion resistance, good thermal conductivity, low shrinkage, and high refractoriness. These refractories must also have good flowability and workability to ensure easy installation and maintenance. Additionally, they should have a high degree of chemical stability to withstand the harsh conditions of molten metal and slag in continuous casting processes.
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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Monolithic Refractories for Iron and Steel Industry - High Alumina Plastic Castable for Hot Blast Stove
- Ref Price:
-
$417.81 - 510.65
/ 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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