$Monolithic Refractories for Iron and Steel Industry:High Alumina Raw Bauxite Products System 1$

$Monolithic Refractories for Iron and Steel Industry:High Alumina Raw Bauxite Products$

$Monolithic Refractories for Iron and Steel Industry:High Alumina Raw Bauxite Products System 1$

Monolithic Refractories for Iron and Steel Industry:High Alumina Raw Bauxite Products

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 400 m.t.

Supply Capability:: 5000 m.t./month

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Specifications

raw bauxite
1. Producing for 20 years.
2. refractory and abrasive
3. Competitive price
4. Al2O3 95%min

It is made by electric arc furnace melting under high temperature of 1100 degrees to 1400 degrees with the raw material of bauxite, anthracite and scrap iron. The main ingredient is AL2O3. With its high micro hardness of 1800-2200kg/mm2, it has many uses like abrasives and refractory. This kind of product has two types P sand and F sand with different uses。

Application:

1. Be used in polishing, grinding.

2. Suitablefor making grinding wheel, cutting, wheel, grinding disc.

3. Its high hardness and abrasion adapt to abrasive tools.

4. For advanced refractory materials

Application	Model	Al2O3	Na2O	Fe2O3	SiO2	TiO2	LOI	True density	a-Al2O3	D50	Particle size	specific surface
Application	Unit	≥ %	≤%	≤%	≤%	≤%	≤%	g/m3	≥ %	um	um	m2/g
Dry pressing/CIP series	TCH-101	99.7	0.08	0.02	0.018	0.006	0.15	3.96	96	75	2--3	0.6-0.8
	TCH-102	99.6	0.1	0.02	0.018	0.006	0.15	3.95	95	75	2--3	0.6-0.8
	TCH-103	99.5	0.2	0.02	0.018	0.006	0.2	3.95	95	75	2--3	0.8-1.0
	TCH-105	99.4	0.3	0.02	0.018	0.006	0.2	3.93	93	75	2--3	0.8-1.0
Injection moulding	TCH-213	99.5	0.15	0.02	0.018	0.006	0.15	3.95	95	75	3-4	0.5-0.6
Injection moulding	TCH-211	99.7	0.1	0.02	0.018	0.006	0.1	3.96	96	75	3-5

Q: How are monolithic refractories different from traditional brick refractories?: Monolithic refractories differ from traditional brick refractories in terms of their composition and application method. While traditional brick refractories are made from individual bricks that are shaped and arranged to form a structure, monolithic refractories are a single, seamless material that is applied in a liquid or semi-liquid form and then cured or dried to form a solid mass. This allows monolithic refractories to be more versatile in terms of application, as they can be easily poured, sprayed, or troweled into complex shapes and installations. Additionally, monolithic refractories often offer better thermal insulation, higher resistance to thermal shock, and improved mechanical strength compared to traditional brick refractories.

Q: How do monolithic refractories perform in aluminum holding furnace applications?: Monolithic refractories have proven to be highly efficient and effective in aluminum holding furnace applications. These refractories are specifically designed to withstand the extreme temperatures and chemical environments encountered in these furnaces. One key advantage of monolithic refractories is their ability to form a continuous, seamless lining in the furnace. This eliminates the need for individual bricks or tiles, reducing the risk of thermal shock and cracking. The absence of joints also minimizes the chances of molten aluminum leaking through the lining, ensuring better containment and heat retention. Monolithic refractories also offer excellent thermal insulation properties, which are crucial in aluminum holding furnaces. They have low thermal conductivity, which helps to reduce heat loss and maintain a stable temperature within the furnace. This results in improved energy efficiency and reduced operating costs. Moreover, monolithic refractories have excellent resistance to corrosion and chemical attack from molten aluminum and its by-products, such as dross and fluxes. This resistance ensures a longer service life for the refractory lining, reducing maintenance and downtime. Additionally, monolithic refractories are known for their easy installation and repair. They can be installed quickly and easily, requiring minimal downtime for furnace maintenance. In case of any localized damage or wear, repairs can be made efficiently by patching or spraying the affected area. In summary, monolithic refractories are an ideal choice for aluminum holding furnace applications due to their seamless lining, thermal insulation properties, resistance to corrosion, and easy installation and repair. These refractories significantly contribute to the overall performance and efficiency of aluminum holding furnaces.

Q: How do monolithic refractories contribute to the reduction of heat loss in iron and steel furnaces?: Reducing heat loss in iron and steel furnaces is a crucial role played by monolithic refractories. These refractories are specifically designed to create a seamless lining throughout the furnace, eliminating any joints or seams that could result in thermal leaks. Monolithic refractories effectively contribute to heat loss reduction in two ways. Firstly, they possess excellent thermal insulation properties that restrict the transfer of heat from the furnace to its surroundings. With their low thermal conductivity, they effectively maintain the high temperatures required for efficient iron and steel production within the furnace, while minimizing heat loss to the surrounding environment. Secondly, monolithic refractories act as a protective barrier, preventing the escape of hot gases and molten metal. This barrier ensures the integrity of the furnace lining, preventing any gaps or cracks that could allow heat to escape. By creating a tight and continuous lining, monolithic refractories significantly reduce heat loss by keeping the heat contained within the furnace. Furthermore, monolithic refractories exhibit a high resistance to thermal shock and erosion, which are common challenges faced in iron and steel furnaces. These refractories can withstand rapid temperature changes, preventing sudden cracks or failures that could result in heat loss. Additionally, they are resistant to the corrosive effects of molten metal and hot gases, guaranteeing the longevity of the lining and preserving its insulating properties over time. To summarize, monolithic refractories contribute to the reduction of heat loss in iron and steel furnaces through their exceptional thermal insulation properties, ability to provide a continuous lining, resistance to thermal shock and erosion, and protection against corrosive substances. By minimizing heat loss, these refractories optimize energy efficiency and productivity in the furnace, leading to cost savings and improved overall performance in the iron and steel industry.

Q: How are monolithic refractories used in the repair and maintenance of ladles and tundishes?: Monolithic refractories are used in the repair and maintenance of ladles and tundishes by providing a durable and heat-resistant lining. These refractories can be easily shaped and applied, allowing for quick repairs and preventing heat loss or leakage. They also offer excellent resistance to thermal shocks and chemical corrosion, ensuring a longer lifespan for ladles and tundishes. Monolithic refractories play a crucial role in maintaining the structural integrity and temperature control of these vessels, ultimately improving their overall performance and efficiency.

Q: What are the typical applications of monolithic refractories in the iron and steel industry?: Monolithic refractories are widely used in various applications within the iron and steel industry. These refractories, which are made of a single material, offer several advantages such as ease of installation, resistance to thermal shock, and excellent resistance to chemical attacks. Here are some typical applications of monolithic refractories in the iron and steel industry: 1. Blast Furnace: Monolithic refractories are used in the lining of blast furnaces, where they are subjected to extreme temperatures and chemical reactions. They provide thermal insulation, prevent erosion, and resist the corrosive effects of molten iron and slag. 2. Ladles and Tundishes: Monolithic refractories are used to line ladles and tundishes, which are vessels used for transporting and transferring molten metal. These refractories offer good thermal insulation and resistance to erosion and chemical attack, ensuring the integrity of the vessels. 3. Steelmaking Converters: Monolithic refractories are utilized in converters, which are used in the steelmaking process to convert molten pig iron into steel. These refractories provide protection against the high temperatures and aggressive chemical environments encountered during the process. 4. Electric Arc Furnaces (EAF): Monolithic refractories are used to line the walls and roofs of EAFs, which are used to melt scrap steel for recycling. These refractories offer excellent thermal insulation, resistance to slag erosion, and thermal shock resistance, ensuring the longevity and efficiency of the furnace. 5. Continuous Casting: Monolithic refractories are employed in the continuous casting process, where molten steel is solidified into a continuous slab or billet. These refractories line the walls and floors of the casting molds, providing thermal insulation and resistance to chemical attack from the molten steel. 6. Reheating Furnaces: Monolithic refractories are used in reheating furnaces, which are used to heat steel billets or ingots prior to further processing. These refractories provide insulation, resist high temperatures, and ensure uniform heating of the metal. Overall, monolithic refractories play a crucial role in the iron and steel industry by providing reliable and durable linings in various applications. Their ability to withstand extreme temperatures, chemical attacks, and thermal shocks makes them indispensable for maintaining the integrity and efficiency of the production processes.

Q: How do monolithic refractories perform in high-temperature environments?: Due to their unique characteristics, monolithic refractories are highly effective in high-temperature environments. Unlike traditional refractories made of multiple bricks or tiles, these refractories are composed of a single, continuous composition. This monolithic structure offers several advantages when it comes to performance in high-temperature conditions. First and foremost, monolithic refractories exhibit excellent thermal shock resistance. They can endure rapid temperature changes without cracking or spalling. While high temperatures can impose significant stress on materials, the monolithic structure allows for better expansion and contraction, minimizing the risk of damage. Furthermore, monolithic refractories possess high resistance to chemical attack. In high-temperature environments, aggressive chemical agents are often present, which can corrode and erode traditional refractory materials. However, the monolithic composition is typically designed to be chemically inert, creating a protective barrier against these corrosive elements. Moreover, monolithic refractories offer superior strength and durability at high temperatures. Their single composition ensures a dense and compact structure, reducing the likelihood of cracking or breaking under extreme thermal conditions. This strength enables them to maintain their integrity and performance even in the most demanding environments. Additionally, monolithic refractories can be easily installed and repaired. Unlike traditional refractories that demand precise brick or tile placement, monolithic materials can be poured or sprayed into place, adapting to any shape or size. This flexibility expedites installation, making it more cost-effective and reducing downtime and maintenance costs. Overall, monolithic refractories excel in high-temperature environments due to their thermal shock resistance, chemical inertness, durability, and ease of installation. Their capacity to withstand extreme heat and harsh conditions makes them the preferred choice for industries such as steel, cement, glass, and petrochemicals, where high temperatures are prevalent.

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 prevent heat loss through radiation?: Monolithic refractories prevent heat loss through radiation by their high thermal conductivity and low thermal expansion. These properties allow them to efficiently transfer heat from the hot side of the refractory to the cooler side, minimizing the temperature difference and reducing heat loss through radiation. Additionally, monolithic refractories provide a continuous and seamless lining, eliminating gaps and cracks that could allow heat to escape. The dense and compact structure of monolithic refractories also acts as a barrier to prevent radiation heat transfer. Overall, monolithic refractories play a crucial role in maintaining thermal insulation and preventing heat loss through radiation in various high-temperature applications.

Q: How are monolithic refractories installed in iron and steel production processes?: Monolithic refractories are installed in iron and steel production processes using various methods depending on the specific application and requirements. The installation process typically involves the following steps: 1. Surface Preparation: Before installing monolithic refractories, the surface where they will be applied must be properly prepared. This involves cleaning and removing any loose materials, dust, or contaminants from the substrate. 2. Mixing: Monolithic refractories consist of different materials such as aggregates, binders, and additives. These components are mixed in specific proportions to achieve the desired properties and consistency. The mixing process can be done manually or using mechanical mixers. 3. Application: There are different techniques for applying monolithic refractories, including gunning, casting, ramming, and troweling. The chosen method depends on factors such as the shape of the structure, accessibility, and required thickness. - Gunning: This method involves using a gunning machine to spray the refractory material onto the surface. It is commonly used to repair or patch existing linings or for rapid installation in areas that are difficult to access. - Casting: In casting, the refractory material is poured into molds or forms and left to set and harden. This method is suitable for creating complex shapes and large-sized components. - Ramming: Ramming involves manually or mechanically compacting the refractory material into a mold or form using a ramming tool. This technique is commonly used for lining induction furnaces, ladles, and other equipment. - Troweling: Troweling is a manual method where the refractory material is applied and smoothed using a trowel. It is often used for smaller repairs or touch-ups. 4. Curing: After the refractory material is applied, it needs to be cured to achieve its optimum strength and performance. Curing involves allowing the material to dry and harden at a controlled temperature and humidity for a specified period. This step is crucial to ensure the long-term durability and resistance of the monolithic refractory lining. Overall, the installation of monolithic refractories in iron and steel production processes requires careful preparation, proper mixing, and the appropriate application technique. It is essential to follow manufacturer guidelines and industry best practices to ensure a successful installation that meets the specific needs of the production process.

Q: What are the recommended storage and handling practices for monolithic refractories?: The recommended storage and handling practices for monolithic refractories include storing them in a dry and covered area to prevent moisture absorption, avoiding direct contact with the ground to prevent contamination, and ensuring proper ventilation to prevent condensation. It is important to handle them with care, avoiding dropping or hitting them, and using appropriate lifting equipment when necessary. Additionally, following the manufacturer's guidelines for installation, curing, and drying processes is crucial to ensure optimal performance and longevity of the monolithic refractories.

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