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

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

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

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 do monolithic refractories contribute to the overall productivity of iron and steel plants?: The overall productivity of iron and steel plants is greatly improved by monolithic refractories. These refractories are versatile and efficient because they can be shaped and installed without the need for joints or mortar. One significant way in which monolithic refractories boost the productivity of iron and steel plants is their ability to withstand high temperatures. They are designed to have excellent thermal shock resistance, meaning they can endure rapid temperature changes without cracking or breaking. This makes them suitable for use in blast furnaces, converters, and ladles, which require high temperatures. Using monolithic refractories in these critical areas allows iron and steel plants to operate at higher temperatures, resulting in increased production rates. These refractories provide effective insulation, reducing heat losses and improving energy efficiency. As a result, the plant saves costs and achieves higher output. Furthermore, monolithic refractories are well-known for their exceptional resistance to chemical attacks from molten metals and slags. They can withstand the corrosive effects of molten iron, steel, and other alloys, protecting the underlying structures and extending their lifespan. This reduces the need for maintenance and repairs, leading to less downtime and higher productivity. Additionally, monolithic refractories offer easy installation and maintenance, which further contributes to productivity. Unlike traditional refractories that require time-consuming bricklaying and jointing, monolithic refractories can be easily sprayed, troweled, or pumped into place, saving time and labor costs. Moreover, they can be repaired or replaced without major disruptions to the production processes, ensuring minimal downtime and maximizing overall plant productivity. In summary, monolithic refractories enhance the productivity of iron and steel plants in various ways, including their ability to withstand high temperatures, provide insulation and energy efficiency, resist chemical attacks, and offer easy installation and maintenance. Their ability to perform in extreme conditions and their cost-effectiveness make them crucial components in the iron and steel industry, ultimately contributing to increased output and profitability.

Q: In iron and steel industry, the main raw materials for blast furnace ironmaking are iron ore, coke and limestone. What's the use of limestone here?: CaCO3 CaO + CO2 =C = 2CO + CO2Fe2O3

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 do monolithic refractories improve the performance and efficiency of iron and steel production?: Monolithic refractories play a crucial role in improving the performance and efficiency of iron and steel production. These specialized materials are designed to withstand extreme temperatures, chemical reactions, and mechanical stresses, making them ideal for use in high-temperature industrial processes. One of the key ways in which monolithic refractories enhance performance is by providing a protective lining in furnaces, kilns, and other equipment used in iron and steel production. Due to their superior heat resistance, they protect the underlying structure from the intense heat and prevent any detrimental effects on the equipment. This results in reduced downtime, longer service life, and ultimately, increased overall efficiency. Monolithic refractories also ensure better thermal efficiency in the production process. By minimizing heat losses, these materials help to maintain a stable and uniform temperature distribution, thereby improving the energy efficiency of the system. This is particularly important in iron and steel production, where precise temperature control is crucial for achieving the desired metallurgical properties of the final product. Furthermore, monolithic refractories offer excellent resistance to chemical corrosion, erosion, and slag attacks. They act as a barrier between the molten metal and the refractory lining, preventing undesirable reactions and material degradation. This helps to maintain the integrity of the furnace lining, reducing the need for frequent repairs or replacements. Consequently, it leads to increased productivity and cost savings in the long run. Another advantage of monolithic refractories is their ability to be easily shaped, repaired, or replaced. Unlike traditional brick refractories, which require extensive labor and time-consuming installation, monolithic refractories can be applied in a more flexible and efficient manner. Their flexible nature allows for easy repair of damaged areas, minimizing downtime and ensuring continuous production. In summary, the use of monolithic refractories significantly enhances the performance and efficiency of iron and steel production. These materials provide a protective lining, improve thermal efficiency, resist chemical corrosion, and offer easy installation and repair options. By optimizing the production process, monolithic refractories contribute to higher productivity, reduced downtime, and increased cost-effectiveness in the iron and steel industry.

Q: What are some common applications of monolithic refractories in the iron and steel industry?: Some common applications of monolithic refractories in the iron and steel industry include lining of ladles, tundishes, and converters, as well as repairs and maintenance of furnaces, kilns, and other high-temperature equipment. They are also used for the construction of runners, troughs, and spouts in continuous casting processes.

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: Can monolithic refractories be used for the lining of reheating furnaces and walking beam furnaces?: Monolithic refractories, which are refractory materials that can be cast or gunned into place rather than being made up of individual bricks or precast shapes, can be utilized for the lining of both reheating furnaces and walking beam furnaces. This characteristic makes them highly adaptable and versatile for a variety of furnace applications. Reheating furnaces are employed to heat metal products to a specific temperature before undergoing further processing, such as rolling or forging. The lining of these furnaces is exposed to high temperatures, thermal cycling, and mechanical stress. Given their exceptional thermal shock resistance and ability to withstand rapid temperature changes without cracking or spalling, monolithic refractories are well-suited for these conditions. In the steel industry, walking beam furnaces are utilized for the continuous heating and transportation of steel slabs or billets. These furnaces necessitate a lining material that can endure the abrasion and mechanical stress caused by the movement of the material. Monolithic refractories with high abrasion resistance and good mechanical strength are ideal for lining walking beam furnaces. Moreover, monolithic refractories provide additional advantages such as straightforward installation, decreased downtime for repairs, and enhanced energy efficiency. They can be customized to fit specific furnace designs and can be easily repaired or replaced as needed. In conclusion, monolithic refractories are a suitable option for lining reheating furnaces and walking beam furnaces due to their ability to withstand high temperatures, thermal cycling, mechanical stress, and abrasion. Their versatility, ease of installation, and repair make them the preferred choice for these furnace applications.

Q: What are the main factors affecting the erosion resistance of monolithic refractories?: Several key factors influence the erosion resistance of monolithic refractories. These factors encompass the chemical composition of the refractory material, the microstructure of the material, the temperature and environment in which it is utilized, and the mechanical properties of the material. The erosion resistance of monolithic refractories heavily relies on the chemical composition. The inclusion of specific chemical elements and compounds can enhance the refractory's resistance to erosion, while others may render it more susceptible. For instance, the addition of alumina (Al2O3) to the refractory composition can augment its erosion resistance by forming a protective layer on the surface. Conversely, the presence of impurities or excessive amounts of certain elements can weaken the refractory and heighten its susceptibility to erosion. The microstructure of the monolithic refractory is another critical factor affecting erosion resistance. The microstructure denotes the arrangement and distribution of particles within the refractory. A well-structured microstructure with a uniform particle distribution can provide superior erosion resistance as it ensures an even distribution of load when exposed to erosive forces. Conversely, a poorly structured microstructure with particle clusters or weak bonding may result in localized erosion and failure. Erosion resistance is significantly influenced by the temperature and environment in which the refractory is employed. High temperatures can induce thermal stresses, chemical reactions, and phase changes in the refractory material, all of which impact its erosion resistance. Additionally, the presence of corrosive gases, liquids, or slags can expedite erosion by promoting chemical reactions or attacking the refractory material, leading to its deterioration. Lastly, the mechanical properties of the monolithic refractory, including strength, hardness, and toughness, contribute to erosion resistance. A refractory with higher mechanical strength and hardness can withstand erosive forces more effectively than a weaker material. Similarly, increased toughness aids in the refractory's resistance to cracking or spalling when subjected to impact or thermal shock, reducing its vulnerability to erosion. To summarize, the erosion resistance of monolithic refractories is influenced by the chemical composition, microstructure, temperature and environment, and mechanical properties of the material. Understanding and optimizing these factors can facilitate the development of refractories with enhanced erosion resistance for diverse industrial applications.

Q: What are the benefits of using monolithic refractories in the iron and steel industry?: Using monolithic refractories in the iron and steel industry has several advantages. Firstly, they have excellent thermal shock resistance, meaning they can withstand extreme temperature changes without cracking or spalling. This is crucial in an industry where materials are exposed to high temperatures during processes such as melting, casting, and heat treatment. Secondly, monolithic refractories have superior corrosion resistance, making them highly durable against the corrosive effects of molten metals and slag. This is particularly important in the iron and steel industry, where materials come into contact with aggressive molten iron, steel, and various chemical compounds. Furthermore, monolithic refractories provide excellent mechanical strength and abrasion resistance. They can withstand mechanical stress, vibrations, and impacts commonly encountered in the iron and steel industry. This ensures a longer lifespan for the refractories, reduces downtime for repairs or replacements, and improves overall operational efficiency. Additionally, monolithic refractories offer ease of installation and repair. Unlike traditional refractory bricks that require complex and time-consuming masonry work, monolithic refractories can be quickly and easily installed using simple methods such as casting, gunning, or spraying. This saves time and labor costs during initial installation and subsequent maintenance or repairs. Moreover, monolithic refractories provide flexibility in design and application. They can be customized to specific shapes and sizes, allowing for tailored linings in different parts of the iron and steel manufacturing process. This versatility enhances the overall efficiency and effectiveness of refractory linings, optimizing production output and ensuring consistent quality of the finished iron and steel products. In conclusion, there are numerous benefits to using monolithic refractories in the iron and steel industry. They offer exceptional thermal shock resistance, corrosion resistance, mechanical strength, and abrasion resistance. They are also easy to install and repair, and their flexibility allows for customized designs. Overall, monolithic refractories contribute to improved productivity, reduced downtime, and enhanced product quality in the iron and steel industry.

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