Refractory Brick purging plug for Ladles
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 50000 set/month
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High quality steel ladle purging plug for steel making
Company profile
We have many years manufacturing experience in producing all types of electric furnace refractories, ladle refractories, tundish refractories, metallurgy furnace burden refractory insulating products, industrial furnace refractories, etc,
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:What are some common applications of monolithic refractories in the iron and steel industry?
- Due to their superior performance and versatility, monolithic refractories find wide application in the iron and steel industry. In this industry, these refractories serve various purposes, such as: 1. Blast Furnace: To withstand high temperatures and chemical reactions, blast furnaces employ monolithic refractories in their linings. These refractories maintain the structural integrity of the furnace and provide insulation against heat loss. 2. Ladle Lining: Monolithic refractories line ladles, which transfer molten iron or steel from the blast furnace to the steelmaking process. They exhibit excellent resistance to thermal shock and erosion caused by the aggressive molten metal. 3. Tundish Lining: Tundish, an intermediate vessel that distributes molten steel to multiple casting molds, utilizes monolithic refractories in its lining. This ensures proper thermal insulation and prevents steel contamination during casting. 4. Electric Arc Furnace (EAF): The lining of EAFs, used in the steelmaking process, consists of monolithic refractories that withstand extreme temperatures and chemical reactions. They exhibit remarkable resistance to high heat and erosion caused by the molten metal and slag. 5. Induction Furnace: Monolithic refractories are also used in the lining of induction furnaces, which melt and refine metals. They provide insulation and protect the furnace structure from the high temperatures and chemical reactions occurring during the melting process. 6. Continuous Casting: Continuous casting machines require monolithic refractories in their linings to ensure smooth and consistent casting of molten steel. These refractories display excellent resistance to high temperatures, thermal shock, and erosion caused by the molten metal and slag. In summary, monolithic refractories play a crucial role in the iron and steel industry by enhancing the overall efficiency and productivity of the manufacturing process. They achieve this by providing durability, thermal insulation, and resistance to chemical reactions.
- Q:How do monolithic refractories perform in ladle lining applications in the iron and steel industry?
- Monolithic refractories are highly effective in ladle lining applications in the iron and steel industry. Their outstanding thermal shock resistance, erosion resistance, and high refractoriness allow them to withstand the extreme conditions of molten metal and slag in ladles. Monolithic refractories also offer excellent thermal conductivity and low porosity, ensuring efficient heat transfer and preventing slag infiltration. Additionally, their easy installation and maintenance make them a preferred choice for ladle lining, ensuring prolonged service life and enhanced productivity in the iron and steel industry.
- Q:How are monolithic refractories different from conventional refractories?
- Monolithic refractories are different from conventional refractories in that they are composed of a single, continuous structure, whereas conventional refractories are made up of multiple individual bricks or shapes. Monolithic refractories offer greater flexibility in terms of installation, as they can be easily shaped and molded to fit various applications. Additionally, monolithic refractories usually have better thermal shock resistance and are more resistant to cracking, making them more durable and long-lasting compared to conventional refractories.
- Q:What are the common manufacturing processes used for monolithic refractories?
- The common manufacturing processes used for monolithic refractories include: 1. Mixing: The first step in the manufacturing process is the proper mixing of the raw materials. This involves carefully measuring and combining the different ingredients to ensure a homogeneous mixture. 2. Wetting: Once the ingredients are mixed, water or a liquid binder is added to wet the mixture. This helps in improving the workability and plasticity of the material, making it easier to shape and mold. 3. Forming: The wet mixture is then shaped into the desired form using various techniques such as casting, gunning, ramming, or extrusion. Casting involves pouring the wet mixture into a mold and allowing it to solidify, while gunning uses a spray gun to apply the material onto a surface. Ramming involves compacting the wet mixture into a mold using a ramming tool, and extrusion involves forcing the wet mixture through a die to create specific shapes. 4. Drying: After forming, the shaped monolithic refractory is dried to remove any excess moisture. This is typically done in a controlled environment with specific temperature and humidity conditions to prevent cracking or warping. 5. Firing: Once dried, the monolithic refractory is fired at high temperatures to achieve its desired properties. This process, known as sintering, helps in bonding the particles together and increasing the strength and stability of the material. 6. Finishing: After firing, the monolithic refractory may undergo additional finishing processes such as grinding, polishing, or coating to improve its surface quality and enhance its performance. These common manufacturing processes ensure the production of high-quality monolithic refractories with consistent properties and performance characteristics.
- 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:How do monolithic refractories resist thermal shock in the iron and steel industry?
- Monolithic refractories are designed specifically to withstand thermal shock in the iron and steel industry, achieved primarily through their unique composition and structure. To begin, high-quality raw materials, such as alumina, magnesia, and silica, are used to create monolithic refractories. These materials are chosen carefully for their excellent thermal properties, including a high melting point, low thermal conductivity, and favorable thermal expansion characteristics. The manufacturing process of monolithic refractories involves precise control over the distribution of grain sizes and the addition of bonding agents. This results in a dense and uniform structure, enhancing their resilience against thermal shock. The bonding agents also play a crucial role in strengthening and maintaining the integrity of the refractories. Furthermore, additives are often incorporated into monolithic refractories to increase their resistance to thermal shock. These additives, such as zirconia, silicon carbide, or graphite, enhance the refractories' ability to endure rapid temperature changes. Moreover, monolithic refractories are designed with low porosity to minimize the penetration of molten metal or slag into the material. This helps prevent the formation of cracks and spalling, which can occur due to thermal shock. In addition, monolithic refractories are commonly applied as a lining or coating on furnace surfaces or other equipment. This creates a protective barrier, reducing direct exposure to extreme temperatures and thermal cycling. Overall, the combination of high-quality raw materials, meticulous manufacturing processes, additives, low porosity, and appropriate application techniques make monolithic refractories highly resistant to thermal shock in the iron and steel industry. They can endure rapid temperature changes, prevent cracks, and maintain their structural integrity, ensuring the reliable and efficient operation of furnaces and other equipment in this demanding industry.
- 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?
- Calcium oxide absorbs sulfur dioxide and prevents it from polluting the air.
- Q:What are the challenges in repairing and maintaining monolithic refractories?
- Repairing and maintaining monolithic refractories poses several challenges. One primary challenge lies in the intricate composition of the materials used in these refractories. They typically consist of various components, including aggregates, binders, and additives. The selection and proportioning of these components significantly affect the refractory's performance and durability, making it difficult to determine the most appropriate repair or maintenance method. Another obstacle arises from the extremely high temperatures at which monolithic refractories operate. These materials are specifically designed to withstand extreme heat, ranging from several hundred to several thousand degrees Celsius. Repairing or maintaining them under such conditions necessitates specialized equipment and techniques to ensure worker safety and repair integrity. Moreover, monolithic refractories often face harsh environments, such as corrosive gases, chemical reactions, and mechanical stresses. These factors can lead to gradual degradation and damage, requiring regular inspections and maintenance. However, identifying and addressing these issues promptly can be challenging as the damage may not always be visible or easily accessible. Furthermore, monolithic refractories are commonly employed in complex industrial processes like steelmaking, cement manufacturing, and petrochemical production. These processes typically involve continuous operation, limiting the available time for repairs and maintenance. Finding suitable windows of opportunity for maintenance and coordinating process shutdowns can pose logistical challenges. Lastly, the cost of repairing and maintaining monolithic refractories can be substantial. The materials used in these refractories tend to be expensive, and the labor and equipment required for repairs and maintenance can accumulate costs. Striking a balance between repair expenses, productivity maintenance, and extending the refractories' service life can challenge plant operators and maintenance teams. In conclusion, the challenges associated with repairing and maintaining monolithic refractories arise from the complex materials used, the high temperatures involved, the harsh operating environments, the complexity of industrial processes, and the cost considerations. Overcoming these challenges necessitates expertise, meticulous planning, and effective coordination to ensure the longevity and optimal performance of monolithic refractories.
- Q:How do monolithic refractories perform in torpedo ladle applications?
- Monolithic refractories are commonly used in torpedo ladle applications due to their excellent performance and durability. Torpedo ladles are used in the steelmaking process to transport and pour molten metal from the blast furnace to the steelmaking furnace. Monolithic refractories, also known as unshaped refractories, are made from a single material and can be applied as a single, cohesive mass. This makes them highly versatile and easy to install in the torpedo ladle. In torpedo ladle applications, monolithic refractories offer several advantages. First and foremost, they have high heat resistance, allowing them to withstand the extreme temperatures and thermal shocks experienced during the transfer and pouring of molten metal. This ensures that the refractories do not crack or fail under these harsh conditions. Additionally, monolithic refractories have excellent corrosion resistance properties, which is crucial in torpedo ladles where the molten metal can be highly corrosive. They are able to withstand the aggressive chemical environment and prevent chemical reactions that could lead to refractory deterioration. Moreover, monolithic refractories have good thermal insulation properties, reducing heat loss from the molten metal and promoting energy efficiency. This helps to maintain the desired temperature of the metal, ensuring optimal steelmaking conditions. Furthermore, monolithic refractories offer good mechanical strength and resistance to abrasion, making them highly suitable for torpedo ladle applications where the refractory lining is subjected to mechanical stress and wear. Overall, monolithic refractories perform exceptionally well in torpedo ladle applications due to their high heat resistance, corrosion resistance, thermal insulation properties, and mechanical strength. They are able to withstand the extreme conditions and provide a reliable and long-lasting lining for torpedo ladles in the steelmaking industry.
- Q:What are the key properties of pumpable refractories used for monolithic refractory applications?
- The key properties of pumpable refractories used for monolithic refractory applications include high flowability, good workability, excellent bonding strength, and high resistance to thermal shock. These pumpable refractories should also possess good pumpability and be able to withstand the intense heat and mechanical stress in the application environment. Additionally, they should have low water demand, high chemical resistance, and the ability to maintain their properties even after exposure to high temperatures.
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Refractory Brick purging plug for Ladles
- 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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