Refractory Brick purging plug for BOF and EAF
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
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purging plug Raw materials
Ladle permeable brick has been in the leading position in domestic and abroad over years. We have developed the series of corundum, chromium corundum, low silicon chromium corundum and corundum spinel one after another.
Customized purging plug
They can be designed and produced types of straight hole, directional slit, directional labyrinth, girth shape and interior and exterior integral split etc according to users’ request. Permeable flow rate of products can be designed upon customers’ request and can be adjusted in a wide range. The blowing opening rate is high.
purging plug Characters
Continuous casting Ladle Porous Block
High alumina and MgO content
High stability.
Thermal shock resisitance.
High life span
purging plug Physical and chemical indexes
Brand | TQZ-1 | TQZ-2 | |
Chemical composition/%,≥ | Al2O3+Cr2O3 | 92 | |
Al2O3+MgO | 92 | ||
Bulk density g/cm³ ≥ | 3 | 3 | |
Crushing strength /Mpa≥ | 1500°C×3h | 100 | 80 |
Modulus of rupture/Mpa≥ | 1500°C×3h | 20 | 15 |
Firing linear change % | 1500°C×3h | 0~+0.3 | 0~+0.4 |
Penetration gas flux (0.4Mpa)/m³ h-1 | 12~60 | 12~60 | |
Factory productivity
Based on 180,000 TON annual productivity and advanced production equipment, we have build deep cooperation relationship with Vietnam, Nigeria, Tailand, Saudi Arabia, Iran, Turkey, etc.
- 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 are monolithic refractories recycled or disposed of at the end of their lifespan?
- Monolithic refractories at the end of their lifespan are typically recycled or disposed of through various methods. Recycling involves collecting the used refractory materials and processing them to remove any contaminants. The processed refractories can then be used as raw materials in the production of new refractory products. Disposal methods include landfilling in designated areas or utilizing waste-to-energy facilities to convert the refractories into energy. The choice between recycling and disposal depends on factors such as the condition of the refractories and the availability of recycling facilities in the area.
- Q: How do monolithic refractories resist corrosion from molten metals?
- Monolithic refractories are able to resist corrosion from molten metals due to their unique composition and structural properties. These refractories are typically made from a single material, such as alumina, magnesia, or silica, and are designed to withstand high temperatures and harsh chemical environments. One key factor contributing to their corrosion resistance is their dense and compact structure. Monolithic refractories are manufactured using a specialized process that results in a tightly bonded material with minimal porosity. This low porosity limits the penetration of molten metals, preventing them from causing damage to the refractory. Furthermore, monolithic refractories often contain additives or binders that enhance their resistance to corrosion. These additives can include silicon carbide, zirconia, or other materials that have excellent chemical stability and can withstand the corrosive effects of molten metals. In addition to their composition, monolithic refractories also possess excellent thermal shock resistance. This means that they can withstand rapid temperature changes without cracking or spalling. When molten metals come into contact with the refractory, the refractory's ability to handle thermal shock prevents the formation of cracks or fractures, which could allow further penetration of the corrosive molten metal. Overall, the combination of a dense structure, chemical additives, and high thermal shock resistance allows monolithic refractories to resist corrosion from molten metals. These refractories are widely used in various industrial applications, such as steelmaking, foundries, and non-ferrous metal processing, where they provide reliable and durable protection against corrosion.
- Q: How do monolithic refractories contribute to the reduction of heat loss in iron and steel plants?
- Monolithic refractories play a crucial role in reducing heat loss in iron and steel plants through their high thermal insulation properties. These refractories are designed to withstand extreme temperatures and provide excellent resistance to thermal shock and erosion. By lining the walls, roofs, and floors of various equipment and structures in the plants, monolithic refractories help to create a barrier that prevents heat from escaping into the surrounding environment. This insulation not only conserves energy but also ensures efficient heat transfer within the plant, leading to improved productivity and cost-effectiveness.
- Q: What are the main types of monolithic refractories used in the iron and steel industry?
- In the iron and steel industry, the primary monolithic refractories used consist of castables, ramming materials, gunning materials, and plastic refractories. Castables, a type of refractory material, can be poured or cast into different shapes and sizes. They're composed of refractory aggregates, binders, and additives. Castables are commonly utilized in ladles, tundishes, and blast furnaces due to their exceptional thermal shock resistance and high strength. Ramming materials, also known as ramming mixes, find application in lining furnace bottoms and other high-temperature settings. They typically comprise refractory aggregates and a bonding agent, allowing them to be compacted or rammed into place. Ramming materials exhibit good resistance to thermal cycling and can endure high temperatures. Gunning materials are specifically designed to be sprayed or gunned onto the refractory surface using a high-pressure gunning machine. They serve the purpose of repairing and patching damaged or eroded refractory linings. Gunning materials are typically comprised of refractory aggregates, binders, and additives. They provide excellent adhesion and are commonly employed in kilns, converters, and electric arc furnaces. Plastic refractories, a type of monolithic refractory, can be molded or formed into different shapes. They're composed of refractory aggregates, plasticizers, and binders. Plastic refractories are used to line various equipment and structures in the iron and steel industry, such as boilers, incinerators, and chimneys. They exhibit good resistance to thermal shock and can be easily installed manually or with a trowel. In summary, these various types of monolithic refractories play a vital role in the iron and steel industry by providing high-temperature resistance, thermal insulation, and durability to the equipment and structures utilized in the production process.
- Q: How do monolithic refractories withstand the thermal cycling in coke oven applications?
- Monolithic refractories are able to withstand the thermal cycling in coke oven applications due to their high thermal shock resistance and low thermal conductivity. They have a unique composition and structure that allows them to expand and contract without cracking or spalling under extreme temperature fluctuations. Additionally, their dense and homogeneous structure minimizes heat transfer, allowing them to maintain their integrity and strength even in the harsh conditions of coke oven operations.
- Q: How do monolithic refractories improve the performance of ladles and tundishes?
- The performance of ladles and tundishes is significantly improved by monolithic refractories in various ways. Firstly, these vessels are thermally insulated by monolithic refractories, which act as a barrier against heat loss and help maintain the desired temperature. This insulation reduces energy consumption and minimizes heat loss. Secondly, monolithic refractories offer excellent resistance to chemical corrosion and erosion. When ladles and tundishes come into contact with molten metal and fluxes, they can be severely corroded and eroded. However, the use of monolithic refractories protects against chemical attacks and extends the lifespan of these vessels. This saves costs associated with frequent repairs or replacements and ensures their integrity and safety. Furthermore, monolithic refractories provide superior mechanical strength and structural stability. Ladles and tundishes must withstand the weight of molten metal and the stresses caused during pouring and handling. With high mechanical strength, monolithic refractories can withstand these loads, maintaining their shape and integrity. This reduces downtime and increases productivity in the steelmaking process. Moreover, monolithic refractories offer flexibility in design and installation. They can be shaped and applied in various configurations, allowing customization to meet the specific requirements of ladles and tundishes. This flexibility ensures a better fit and improves the overall efficiency of the refractories, ultimately enhancing the performance of the vessels. In conclusion, monolithic refractories enhance the performance of ladles and tundishes by providing improved thermal insulation, resistance to chemical corrosion and erosion, increased mechanical strength, and flexibility in design and installation. These benefits contribute to the longevity, efficiency, and cost-effectiveness of ladles and tundishes in steelmaking operations.
- Q: How are monolithic refractories different from traditional refractory materials?
- Monolithic refractories are different from traditional refractory materials in several ways. Firstly, while traditional refractory materials are typically made from bricks, blocks, or tiles, monolithic refractories are composed of a single, continuous material. This means that they do not have any joints or seams, which can be a weak point in traditional refractory structures. Secondly, monolithic refractories are much easier to install compared to traditional refractory materials. They can be easily shaped and applied in situ, allowing for greater flexibility in design and construction. In contrast, traditional refractory materials require skilled labor and more time-consuming installation methods such as bricklaying. Furthermore, monolithic refractories offer improved thermal shock resistance. Due to their continuous structure, they can better withstand sudden changes in temperature without cracking or spalling. Traditional refractory materials, on the other hand, may be more susceptible to thermal shock damage. Another advantage of monolithic refractories is their ability to provide better insulation. Their composition often includes lightweight aggregates or insulating fibers, which help to reduce heat loss and improve energy efficiency. Traditional refractory materials, while still capable of providing insulation, may not offer the same level of thermal efficiency. Lastly, monolithic refractories have the advantage of being more cost-effective. Their ease of installation, reduced labor requirements, and improved thermal performance contribute to lower overall project costs compared to traditional refractory materials. In summary, monolithic refractories differ from traditional refractory materials in terms of their continuous structure, ease of installation, improved thermal shock resistance, better insulation properties, and cost-effectiveness. These characteristics make them a preferred choice in many industries where high-temperature applications and thermal insulation are required.
- Q: What are the advantages of using self-flow castables in the iron and steel industry?
- The advantages of using self-flow castables in the iron and steel industry are numerous. Firstly, these castables have excellent flowability, which allows for easy and efficient installation. This results in reduced labor costs and time savings during the installation process. Additionally, self-flow castables have high strength and excellent resistance to thermal shock. This makes them highly durable and capable of withstanding the extreme temperatures and thermal cycling conditions present in iron and steel applications. As a result, they provide long-lasting and reliable performance in these demanding environments. Furthermore, self-flow castables offer excellent dimensional stability, ensuring that the refractory lining maintains its shape and integrity even under high mechanical loads and thermal stresses. This feature is crucial in maintaining the structural integrity of the furnaces, ladles, and other equipment used in the iron and steel industry. Moreover, self-flow castables have low water requirements, reducing the risk of cracking and spalling during drying and firing. This leads to improved product quality and increased refractory lifespan. Overall, the advantages of using self-flow castables in the iron and steel industry include easy installation, high strength, thermal shock resistance, dimensional stability, and improved product quality. These benefits contribute to increased efficiency, reduced downtime, and cost savings for iron and steel manufacturers.
- Q: What are the considerations for selecting monolithic refractories for reheating furnaces?
- There are several key considerations when selecting monolithic refractories for reheating furnaces. Firstly, the refractory material must have excellent thermal conductivity to efficiently transfer heat to the steel being reheated. Additionally, it should possess high resistance to thermal shock and mechanical stress to withstand the rapid temperature changes and mechanical forces experienced in the furnace. The refractory should also have low porosity to prevent the penetration of gases and slag, ensuring a longer service life. Other factors to consider include the refractory's resistance to corrosive environments, ease of installation, and cost-effectiveness. Ultimately, choosing the right monolithic refractory is crucial to ensure optimal furnace performance and longevity.
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Refractory Brick purging plug for BOF and EAF
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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