Monolithic Refractories Magnesium Calcium Gunning for Ladle and Tundish for Iron and Steel Industry
- Ref Price:
-
$652.11 - 797.03
/ 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
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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General Information of Magnesium Calcium Gunning for Ladle and Tundish
Made as per international standards, ALRE magnesium calcium gunning forladle and tundish is known for its excellent corrosion resistance, long operating life and high refractoriness.
Technical data of Magnesium Calcium Gunning for Ladle and Tundish
Item | Magnesium Calcium Gunning | |||
CPL-1 | CPL-2 | |||
Al2O3(%)≥ | — | — | ||
MgO(%)≥ | 75-80 | 70-80 | ||
CaO(%)≤ | 5-10 | 2-10 | ||
SiO2(%)≤ | 4 | 10 | ||
SiO2+ Fe2O3+ Al2O3(%)≥ | ||||
Bulk Density (g/cm3)≥ | — | — | ||
C.C.S. (MPa) ≥ | 110℃×24hrs | — | — | |
1500℃×3hrs | — | — | ||
M.O.R.(MPa) ≥ | 110℃×24hrs | — | — | |
1500℃×3hrs | — | — | ||
Refractoriness (℃) ≥ | 1790 | 1790 | ||
Grain Size (mm) ≤ | — | — | ||
Permanent Linear Change(%) | 1500℃×2hrs | — | — | |
1500℃×3hrs | — | — | ||
Life time (hr) | — | — | ||
Production line and Packing of Magnesium Calcium Gunning for Ladle and Tundish
Feature of Magnesium Calcium Gunning for Ladle and Tundish
Long operating life
High refractoriness
Excellent corrosion resistance
Application of Magnesium Calcium Gunning for Ladle and Tundish
ALRE magnesium calcium gunning forladle and tundish can be used widely in steel and iron industry.
- Q: What are the challenges faced in the application of monolithic refractories?
- The application of monolithic refractories presents several challenges. Firstly, a major hurdle is the correct installation of these refractories. Unlike traditional brick refractories that can be easily stacked, specialized skills and techniques are required for the proper application of monolithic refractories. The consistency and workability of the refractory material must be carefully controlled, and specialized equipment such as gunning machines or vibrating tools are often necessary for the installation process. Another challenge lies in selecting the appropriate monolithic refractory material for a specific application. There are various types of monolithic refractories available, each with its own unique properties and suitability for different environments. Choosing the wrong type of refractory material can lead to premature failure and expensive repairs. Therefore, it is crucial to understand the operating conditions, including temperature, chemical exposure, and mechanical stress, in order to select the most suitable monolithic refractory material. Additionally, monolithic refractories are prone to thermal shock and erosion due to their composition and method of application. They are typically made from fine powders that are mixed with water or other binding agents to form a paste. This paste is then applied and dried to create a solid refractory lining. However, during the heating and cooling cycles, monolithic refractories can experience thermal expansion and contraction, resulting in cracks and spalling. Furthermore, chemical reactions occurring in certain industrial processes can cause chemical attack and erosion of the refractory lining, reducing its lifespan. Furthermore, the maintenance and repair of monolithic refractories can also pose a challenge. Unlike brick refractories that can be easily replaced, repairing monolithic refractories often requires skilled personnel and specialized techniques. The damaged area must be removed, and a new layer of refractory material must be applied, ensuring proper bonding and compatibility with the existing lining. This process can be time-consuming and costly, especially in high-temperature applications where extended downtime can result in significant production losses. In conclusion, the application of monolithic refractories presents challenges in terms of proper installation techniques, material selection, susceptibility to thermal shock and erosion, and complex maintenance and repair procedures. Overcoming these challenges requires expertise, careful planning, and a comprehensive understanding of the specific operating conditions and requirements for each application.
- Q: How do monolithic refractories help in enhancing the durability of iron and steel furnaces?
- The durability of iron and steel furnaces is greatly improved by the use of monolithic refractories, which possess unique properties and characteristics. These materials are specifically designed to endure harsh conditions and extremely high temperatures, making them the ideal choice for lining furnaces. To begin with, monolithic refractories exhibit exceptional thermal resistance, enabling them to withstand extreme heat without compromising their structural integrity. With iron and steel furnaces operating at temperatures exceeding 2,000 degrees Celsius, traditional bricks or other materials would quickly succumb to such intense heat, necessitating frequent repairs and maintenance. Conversely, monolithic refractories are capable of enduring these extreme temperatures without deterioration, thereby enhancing the durability of the furnaces. Furthermore, monolithic refractories boast a high resistance to chemical attack. In the production of iron and steel, the materials being processed often contain impurities and aggressive chemicals that can react with the furnace lining, leading to corrosion and erosion over time. However, monolithic refractories possess a remarkable ability to resist chemical attack, ensuring that the lining remains intact and durable even in the presence of corrosive elements. In addition, monolithic refractories exhibit superior mechanical strength and abrasion resistance. The movement of raw materials, stirring of molten metal, and tapping of the furnace exert mechanical stress and cause abrasion on the lining. Consequently, the lining must withstand this constant wear and tear without cracking or breaking. Monolithic refractories possess exceptional mechanical strength and can resist abrasion, thereby guaranteeing the durability and functionality of the furnace for an extended period. Moreover, monolithic refractories offer outstanding thermal shock resistance. The lining of iron and steel furnaces experiences rapid temperature changes during various stages of production. These temperature fluctuations induce thermal stress and may result in cracks or spalling of the lining. However, monolithic refractories possess low thermal conductivity and can endure thermal shock, effectively preventing any damage to the furnace lining and enhancing its durability. In conclusion, monolithic refractories contribute significantly to the durability of iron and steel furnaces by providing excellent thermal resistance, high resistance to chemical attack, superior mechanical strength and abrasion resistance, as well as exceptional thermal shock resistance. These properties ensure the integrity of the furnace lining, enabling it to withstand extreme temperatures and resist the corrosive and abrasive nature of the materials being processed. Ultimately, this prolongs the lifespan of the furnace and reduces the necessity for frequent repairs or replacements.
- Q: What are the advancements in monolithic refractory technology for the iron and steel industry?
- There have been significant advancements in monolithic refractory technology for the iron and steel industry in recent years. Monolithic refractories are a type of heat-resistant material used to line the walls and floors of high-temperature industrial processes, such as those involved in iron and steel production. One of the key advancements in monolithic refractory technology is the development of new and improved materials. Traditional refractory materials, such as firebricks, have been replaced by more advanced materials like castables and gunning mixes. These new materials offer superior performance in terms of thermal conductivity, thermal shock resistance, and erosion resistance. They can withstand higher temperatures and can be applied more efficiently, resulting in improved process efficiency and reduced downtime for maintenance. Another important advancement is the use of advanced additives in monolithic refractories. These additives can enhance the properties of the refractory material, such as increasing its resistance to corrosion and erosion. They can also improve the bond between the refractory and the substrate, ensuring a longer lifespan for the lining. Furthermore, advancements in monolithic refractory technology have led to the development of innovative installation techniques. For instance, shotcreting, a process that involves spraying the refractory material onto the surface, has gained popularity due to its efficiency and ability to provide a uniform lining. Similarly, the use of gunning machines, which pump the refractory material at high velocity, has improved the speed and accuracy of installation. Moreover, there have been advancements in the design of monolithic refractories specifically tailored for different applications in the iron and steel industry. Refractories for blast furnaces, ladles, tundishes, and other critical equipment have been optimized to withstand the unique challenges and harsh conditions of these processes. The development of specialized monolithic refractories has resulted in increased productivity, reduced energy consumption, and improved product quality in the iron and steel industry. In conclusion, advancements in monolithic refractory technology for the iron and steel industry have brought about improved materials, advanced additives, innovative installation techniques, and specialized designs. These advancements have significantly enhanced the performance, durability, and efficiency of refractory linings in high-temperature industrial processes. As a result, the iron and steel industry can benefit from increased productivity, reduced downtime, and improved product quality.
- Q: How do monolithic refractories contribute to the overall efficiency of steel ladle operations?
- Monolithic refractories play a crucial role in enhancing the overall efficiency of steel ladle operations. These refractories are engineered materials that are installed as a single, unbroken structure within the ladle. They offer numerous benefits that directly contribute to the efficiency of the steel ladle operations. Firstly, monolithic refractories are known for their excellent thermal insulation properties. They have low thermal conductivity, which means they can effectively retain and contain heat within the ladle. This insulation property helps in maintaining the desired temperature of the molten steel, preventing heat loss during transportation and reducing the need for frequent reheating. By minimizing heat loss, monolithic refractories enable more efficient use of energy resources, resulting in cost savings and improved productivity. Additionally, monolithic refractories exhibit high refractoriness, which refers to their ability to withstand high temperatures without losing their structural integrity. This characteristic is vital in steel ladle operations, as the ladles are exposed to extreme temperatures during the steelmaking process. The high refractoriness of monolithic refractories ensures that they can withstand the intense heat and prevent any damage or failure of the ladle lining. This durability translates into reduced downtime and maintenance requirements, leading to increased operational efficiency. Moreover, monolithic refractories offer excellent resistance to chemical attack. The ladles used in steelmaking are in contact with various corrosive substances, such as molten metals, slag, and fluxes. The chemical resistance of monolithic refractories prevents them from reacting with these substances, ensuring the integrity and longevity of the ladle lining. This resistance to chemical attack reduces the frequency of repairs and replacements, minimizing downtime and improving the overall efficiency of ladle operations. Furthermore, the installation of monolithic refractories is relatively quick and straightforward compared to traditional brick linings. This ease of installation saves time and labor costs, allowing for faster turnaround between ladle operations. It enables steel manufacturers to optimize their production schedules and enhance overall operational efficiency. In conclusion, monolithic refractories contribute significantly to the overall efficiency of steel ladle operations. Their excellent thermal insulation properties, high refractoriness, resistance to chemical attack, and ease of installation all play vital roles in improving energy efficiency, reducing downtime, and enhancing productivity. By choosing monolithic refractories, steel manufacturers can achieve optimized ladle performance and ultimately improve their overall steelmaking process.
- Q: What are the key properties of monolithic refractories?
- Monolithic refractories are a type of refractory material that are unshaped or shapeless, meaning they do not have a definite form like bricks or tiles. Instead, they are typically composed of a mixture of aggregates, binders, and additives that can be easily molded and installed in various industrial applications. The key properties of monolithic refractories are: 1. High temperature resistance: Monolithic refractories are designed to withstand extremely high temperatures, making them suitable for applications in industries such as steel, cement, glass, and petrochemicals. They can maintain their strength and structural integrity even at temperatures exceeding 3000 degrees Fahrenheit. 2. Thermal shock resistance: Monolithic refractories have the ability to resist thermal shock, which is the sudden change in temperature that can cause cracking or damage to the refractory. This property is essential in environments where rapid heating or cooling occurs, such as in furnaces or kilns. 3. Chemical resistance: Monolithic refractories exhibit excellent resistance to chemical attack and corrosion from molten metals, slag, gases, and other harsh substances. This makes them ideal for use in environments where they come into contact with acidic or alkaline materials. 4. Low porosity: Monolithic refractories have low porosity, which means they have a high density and are less permeable to gases and liquids. This property helps to prevent the penetration of molten metals or corrosive substances into the refractory, ensuring its longevity and performance. 5. Easy installation and repair: Unlike traditional refractory materials like bricks, monolithic refractories can be easily molded and installed in various shapes and sizes. They can be applied by spraying, casting, or ramming techniques, allowing for faster installation and reduced downtime. Additionally, they can be easily repaired or patched if any damage occurs. 6. Good mechanical strength: Monolithic refractories possess adequate mechanical strength to withstand the stresses and pressures encountered during their service life. This ensures their structural integrity, even under high load conditions. Overall, the key properties of monolithic refractories make them a versatile and reliable choice for a wide range of industrial applications where high temperature resistance, chemical resistance, and thermal shock resistance are required.
- Q: What are the typical applications of monolithic refractories in the iron and steel industry?
- Monolithic refractories find several typical applications in the iron and steel industry. These include lining electric arc furnaces, ladles, tundishes, and various other equipment used in the production of iron and steel. Monolithic refractories are also commonly used for repairing and maintaining the linings of these equipment. Their high thermal conductivity, excellent resistance to thermal shock, and ability to withstand extreme temperatures make them ideal for these applications in the iron and steel industry.
- Q: What are the common failure mechanisms of monolithic refractories?
- Monolithic refractories commonly fail due to thermal spalling, chemical attack, erosion, and mechanical stress. Thermal spalling arises from abrupt temperature changes, causing the refractory material to crack and break. This can result from thermal shock or cyclic heating and cooling. Chemical attack occurs when aggressive chemicals or gases interact with the refractory material, degrading its lining. This can lead to the formation of new compounds or the dissolution of the refractory material, weakening its structure and reducing its resistance to further chemical attack. Erosion is another prevalent failure mechanism, particularly in scenarios where the refractory lining is exposed to high-speed gas or liquid flows. The abrasive action of the medium can gradually erode the refractory material, causing thinning and eventual failure of the lining. Mechanical stress, such as thermal expansion or contraction mismatch, can also lead to failure in monolithic refractories. Rapid temperature changes can result in differential expansion or contraction, leading to the development of cracks and fractures in the lining. To mitigate these failure mechanisms, several techniques can be utilized. These include careful material selection based on operating conditions, meticulous design to minimize thermal gradients, application of protective coatings, and regular inspection and maintenance to promptly detect and address signs of failure or degradation.
- Q: How do monolithic refractories enhance the performance of ladle and tundish covers?
- The performance of ladle and tundish covers is significantly improved by the utilization of monolithic refractories. There are several ways in which this enhancement is achieved. Primarily, monolithic refractories possess remarkable thermal insulation properties. The steelmaking process subjects ladles and tundishes to extreme temperatures. Through the use of monolithic refractories, the covers effectively trap and retain heat, preventing excessive heat loss. This insulation ability not only helps maintain the desired temperature of the molten steel but also reduces the energy consumption required for heating. Secondly, monolithic refractories demonstrate exceptional resistance to thermal shock. When ladles and tundishes are filled with molten steel, there is a rapid and drastic temperature change in the refractory lining. This sudden shift can cause cracking and spalling of the lining, jeopardizing its integrity. However, monolithic refractories possess high thermal shock resistance, enabling them to endure these abrupt temperature fluctuations without significant damage. This ensures the longevity and durability of the ladle and tundish covers. Additionally, monolithic refractories exhibit excellent corrosion resistance. The presence of molten steel and other corrosive substances in ladles and tundishes can erode the refractory lining over time. Nonetheless, monolithic refractories are specifically engineered to withstand these corrosive environments, shielding the covers from chemical attack and erosion. This corrosion resistance enhances the lifespan of the ladle and tundish covers, reducing the need for frequent replacements and associated downtime. Furthermore, monolithic refractories provide good mechanical strength and stability. Ladles and tundishes undergo various mechanical stresses, including the weight of the molten steel, thermal expansions, and vibrations. The use of monolithic refractories furnishes the necessary strength and stability to endure these mechanical forces, averting structural failures and maintaining the integrity of the covers. To summarize, monolithic refractories heighten the performance of ladle and tundish covers by providing exceptional thermal insulation, resistance to thermal shock and corrosion, and sufficient mechanical strength. These properties guarantee efficient steelmaking processes, diminish maintenance costs, and extend the lifespan of ladles and tundishes.
- Q: How do monolithic refractories contribute to the overall reliability of iron and steel processes?
- Monolithic refractories play a crucial role in enhancing the overall reliability of iron and steel processes in several ways. Firstly, they provide excellent thermal insulation, which helps in maintaining consistent and controlled temperatures within the furnaces and other equipment involved in the production process. This ensures the stability of the process and avoids any sudden temperature fluctuations that could lead to equipment failure or product quality issues. Secondly, monolithic refractories offer high resistance to thermal shocks and mechanical stresses, which are common in iron and steelmaking operations. These refractories can withstand extreme temperatures, rapid heating and cooling cycles, and the corrosive nature of molten metals, thereby prolonging the lifespan of the equipment and reducing the frequency of repairs or replacements. Moreover, monolithic refractories have a superior ability to resist chemical attacks from molten metals, slag, and other harsh substances encountered in iron and steel processes. This resistance prevents the refractories from deteriorating or corroding over time, ensuring their integrity and preventing any contamination of the metal being produced. Lastly, the use of monolithic refractories allows for greater design flexibility and ease of installation compared to traditional brick refractories. This flexibility enables the construction of complex shapes and structures, optimizing the efficiency and productivity of iron and steelmaking processes. Overall, monolithic refractories contribute significantly to the reliability of iron and steel processes by providing excellent thermal insulation, resistance to thermal shocks and chemical attacks, and facilitating flexible design and installation options.
- Q: How are monolithic refractories manufactured?
- Monolithic refractories are manufactured using a specific process that involves several steps. The first step is the selection and preparation of raw materials. These raw materials usually include aggregates, binders, and additives. Aggregates are chosen based on their chemical and physical properties, while binders are used to hold the aggregates together. Additives are included to enhance specific properties of the refractory material. Once the raw materials are selected, they are mixed together in precise proportions to create a homogeneous mixture. This mixture is then blended using various techniques such as dry or wet mixing, depending on the desired characteristics of the final product. After blending, the next step is shaping the refractory material. This can be done through several methods such as casting, gunning, ramming, or spraying. Each method is chosen based on the specific application and requirements of the refractory. Once the refractory material is shaped, it undergoes a curing process. This process involves drying the material at a controlled temperature to remove any excess moisture and allow for the development of desired properties. Finally, the cured refractory material is fired in a kiln at high temperatures. This firing process helps to further strengthen the refractory and enhance its resistance to heat and other harsh conditions. Overall, the manufacturing of monolithic refractories involves careful selection and preparation of raw materials, precise blending, shaping, curing, and firing processes. This ensures the production of high-quality refractory materials that can withstand the extreme conditions found in various industrial applications.
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 Magnesium Calcium Gunning for Ladle and Tundish for Iron and Steel Industry
- Ref Price:
-
$652.11 - 797.03
/ 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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