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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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: How are monolithic refractories different from traditional brick refractories?
- There are several differences between monolithic refractories and traditional brick refractories. Firstly, monolithic refractories are composed of a single, homogeneous material, whereas traditional brick refractories are made up of individual bricks that are pieced together. This variance in construction allows monolithic refractories to possess a more uniform and consistent structure, which can enhance their performance and durability. Secondly, installing monolithic refractories is typically easier compared to traditional brick refractories. Due to their composition, they can be poured or sprayed into place, eliminating the need for precise bricklaying and mortar application. This simplified installation process saves time and labor during construction or repair projects. Furthermore, monolithic refractories often exhibit superior resistance to thermal shock when compared to traditional brick refractories. The homogeneous structure of monolithic refractories enables them to expand and contract more uniformly under thermal stress, reducing the risk of cracking and failure. This characteristic makes monolithic refractories more suitable for applications with rapid temperature changes, such as in furnaces or kilns. Additionally, monolithic refractories offer better resistance to chemical attacks and erosion. Traditional brick refractories may have joints and gaps between bricks, which can become vulnerable to chemical reactions or erosion over time. Conversely, monolithic refractories possess a seamless structure that minimizes the risk of chemical penetration and erosion, enhancing their longevity and performance. In conclusion, monolithic refractories provide advantages in terms of uniformity, ease of installation, thermal shock resistance, and chemical resistance compared to traditional brick refractories. These disparities make monolithic refractories the preferred choice for numerous industrial applications that involve high temperatures and harsh environments.
- Q: What are the advantages of using low-cement castables in the iron and steel industry?
- There are numerous benefits associated with the utilization of low-cement castables in the iron and steel sector. To begin with, low-cement castables necessitate less water compared to traditional castables. Consequently, the installation process becomes faster and more efficient due to the reduced water requirement. Moreover, the lower water content results in enhanced strength development and shorter drying time, facilitating faster turnaround times during production. In addition, low-cement castables exhibit exceptional resistance to extreme temperatures and thermal shocks. Given the high temperatures prevalent in the iron and steel industry, these castables possess excellent refractory properties that enable them to withstand such harsh conditions. Consequently, the refractory lining enjoys an extended service life, reducing the need for frequent repairs or replacements. Furthermore, low-cement castables demonstrate remarkable mechanical strength and abrasion resistance. Given the nature of the iron and steel sector, where heavy materials and abrasive substances are handled, the refractory lining is susceptible to wear and tear. However, low-cement castables are capable of enduring these mechanical stresses, thereby enhancing the durability and longevity of the lining. Moreover, low-cement castables possess low porosity and high density, resulting in reduced permeability. Consequently, they exhibit high resistance to alkali attacks, chemical corrosion, and slag penetration, all of which are common challenges faced in the iron and steel industry. By employing low-cement castables, the risk of refractory failure caused by these corrosive elements is minimized. Lastly, low-cement castables contribute to improved energy efficiency. Their lower thermal conductivity ensures that less heat is conducted through the refractory lining, leading to reduced heat losses. This, in turn, translates into energy savings, as less heat is wasted and more heat is retained within the system. The significance of this advantage is particularly evident in the iron and steel industry, where energy costs can be substantial. In conclusion, the use of low-cement castables in the iron and steel sector offers a multitude of advantages, including reduced water requirement, superior thermal resistance, enhanced mechanical strength, improved resistance to chemical corrosion, and increased energy efficiency. These benefits contribute to overall cost savings, heightened productivity, and improved operational performance in the iron and steel manufacturing process.
- Q: How do monolithic refractories prevent heat loss through convection?
- Monolithic refractories prevent heat loss through convection by providing a continuous and dense structure that minimizes the movement of air or gases, thereby reducing the transfer of heat through convection currents.
- Q: What are the main types of monolithic refractories used in the iron and steel industry?
- The main types of monolithic refractories used in the iron and steel industry are castables, plastic refractories, and ramming mixes.
- Q: How do monolithic refractories resist chemical attacks from molten metals and slag?
- Monolithic refractories are specifically designed to resist chemical attacks from molten metals and slag. They possess several key characteristics that enable them to withstand these aggressive environments. Firstly, monolithic refractories are composed of high-quality materials that have excellent chemical resistance. These materials, such as alumina, magnesia, and chrome, have a high melting point and are stable even when exposed to extreme temperatures and corrosive substances. This chemical stability ensures that the refractory can maintain its integrity and structural strength when in contact with molten metals and slag. Secondly, monolithic refractories have a dense and compact structure. This microstructure helps to prevent the penetration of molten metals and slag into the refractory material. The dense structure acts as a barrier, limiting the contact between the corrosive substances and the refractory. This reduces the chances of chemical reactions and erosion, thereby enhancing the resistance of the refractory to chemical attacks. Furthermore, monolithic refractories often contain additives and binders that enhance their chemical resistance. These additives create a protective layer on the refractory surface, acting as a shield against chemical attacks. They can also react with certain corrosive substances, forming stable compounds that further resist the penetration and corrosion of the refractory material. Additionally, monolithic refractories are designed to have low porosity. This low porosity minimizes the absorption of molten metals and slag, preventing them from infiltrating the refractory and causing damage. By reducing the permeability of the material, the refractory can maintain its structural integrity and resist chemical attacks over prolonged periods. In conclusion, monolithic refractories resist chemical attacks from molten metals and slag through their high-quality materials, dense structure, additives, and low porosity. These combined properties allow the refractories to withstand aggressive environments and maintain their performance and longevity in industrial applications.
- Q: How do monolithic refractories improve the efficiency of ladle and tundish preheaters?
- The efficiency of ladle and tundish preheaters can be significantly improved through the utilization of monolithic refractories, which play a vital role in this process. To begin with, monolithic refractories possess exceptional thermal insulation properties. Their low thermal conductivity ensures that heat loss from the preheaters is effectively prevented. By minimizing heat loss, monolithic refractories ensure that the majority of the heat generated by the preheater is utilized for preheating the ladle or tundish. This results in reduced energy consumption and enhanced efficiency of the preheating process. Additionally, monolithic refractories offer remarkable resistance to thermal shocks. As ladle and tundish preheaters are subjected to rapid and extreme temperature changes during operation, it is crucial for the refractories to withstand these shocks. The ability of monolithic refractories to endure these thermal shocks ensures their long-lasting performance, reducing the need for frequent repairs or replacements. This not only enhances the efficiency of the preheaters but also reduces downtime and maintenance costs. Furthermore, monolithic refractories exhibit excellent mechanical strength and resistance to abrasion. The constant wear and tear experienced by ladle and tundish preheaters due to the movement of ladles or tundishes, as well as the abrasive nature of the materials being processed, can be mitigated through the use of monolithic refractories. These refractories prevent erosion and damage to the preheaters, ensuring their longevity and optimal functioning. Consequently, this improves the overall efficiency of ladle and tundish preheaters by reducing downtime and maintenance requirements. Lastly, monolithic refractories offer the advantage of design flexibility. They can be customized and shaped to meet the specific requirements of ladle or tundish preheaters. This allows for better fitting and insulation, maximizing heat transfer efficiency. The ability to tailor the refractory lining to the preheater's design also ensures uniform heating, minimizing temperature variations and improving overall operational efficiency. In conclusion, monolithic refractories contribute to the improved efficiency of ladle and tundish preheaters by providing superior thermal insulation, resistance to thermal shocks, mechanical strength, abrasion resistance, and design flexibility. These properties result in reduced heat loss, minimized downtime, enhanced durability, and optimized heat transfer, ultimately leading to improved efficiency of the preheating process.
- Q: What are the latest advancements in monolithic refractories for the iron and steel industry?
- Some of the latest advancements in monolithic refractories for the iron and steel industry include the development of high-performance materials with enhanced thermal shock resistance, improved corrosion resistance, and increased durability. These advancements have been achieved through the incorporation of advanced additives and binders, as well as the utilization of new manufacturing techniques such as spray drying and rapid heat curing. Additionally, there have been advancements in the design of monolithic refractory shapes and installation techniques to optimize their performance and increase their lifespan in the demanding environments of the iron and steel industry.
- Q: What are the main challenges in designing the lining system with monolithic refractories?
- Achieving proper installation is one of the primary difficulties in designing the lining system using monolithic refractories. Skilled labor and precise application techniques are required for the installation, which can involve casting, gunning, or shotcreting. The performance and longevity of the lining system can be compromised if any errors or inconsistencies occur during installation. Ensuring sufficient bonding between the monolithic refractories and the existing structure presents another challenge. To prevent delamination or separation of the refractory material from the underlying surface, proper adhesion is crucial. Factors like surface preparation, temperature differences, and mechanical stress can affect the strength of the bond, necessitating careful consideration during the design phase. The compatibility of monolithic refractories with different operating conditions also poses a challenge. Refractory materials are exposed to extreme temperatures, chemical reactions, and thermal cycling, which can result in degradation and failure. Designing a lining system that can withstand these conditions requires a thorough understanding of the refractory properties and the specific requirements of the application. Furthermore, selecting the appropriate monolithic refractory material for a given lining system is a significant challenge. There are various types of monolithic refractories available, each with its own advantages and disadvantages. When choosing the most suitable material for the application, factors like temperature range, chemical composition, thermal conductivity, abrasion resistance, and thermal shock resistance must be taken into account. Lastly, maintaining the integrity of the monolithic refractory lining system throughout its lifespan is challenging. Regular inspections, repairs, and maintenance are necessary to address issues such as cracks, erosion, or spalling. Developing a comprehensive maintenance plan and ensuring access to skilled personnel for repairs are crucial aspects of designing a successful lining system with monolithic refractories.
- Q: What are the common applications of monolithic refractories in blast furnaces?
- Monolithic refractories, also known as unshaped refractories, are widely used in blast furnaces due to their advantageous properties and versatile applications. Some common applications of monolithic refractories in blast furnaces include: 1. Furnace lining: Monolithic refractories are used to line the walls, hearth, and roof of blast furnaces. Their high thermal resistance and superior insulating properties help protect the furnace structure from extreme temperatures and thermal shocks. 2. Tuyere and taphole repair: Blast furnaces have tuyeres, which are nozzles that inject air or fuel into the furnace, and tapholes, which are openings used to tap molten iron or slag. Monolithic refractories are used to repair and maintain these critical components, as they can withstand the high temperatures and chemical reactions occurring in these areas. 3. Hot repair and maintenance: Blast furnaces undergo frequent repairs and maintenance due to the harsh operating conditions. Monolithic refractories are used for hot repair and maintenance, as they can be easily applied in a plastic or semi-plastic state to fill cracks, patch damaged areas, or replace worn-out linings. 4. Erosion and corrosion resistance: Blast furnace environments are highly corrosive due to the presence of molten iron, slag, and other molten materials. Monolithic refractories with high resistance to erosion and corrosion are used to protect the furnace lining from chemical attacks and prolong its lifespan. 5. Gunning mixes: Gunning mixes are widely used in blast furnaces for their ability to be sprayed or gunned onto the refractory lining. These mixes consist of fine refractory aggregates, bonding agents, and additives. They are applied to repair worn-out areas, seal cracks, and provide a protective layer against erosion and slag penetration. 6. Slag line and iron runner repair: The slag line and iron runners in blast furnaces are prone to erosion and wear due to the corrosive nature of molten slag and iron. Monolithic refractories are used to repair and rebuild these areas, ensuring smooth and efficient operation of the furnace. In conclusion, monolithic refractories have various applications in blast furnaces, including furnace lining, tuyere and taphole repair, hot repair and maintenance, erosion and corrosion resistance, gunning mixes, and slag line and iron runner repair. Their ability to withstand high temperatures, chemical attacks, and mechanical stresses make them indispensable in maintaining the integrity and efficiency of blast furnace operations.
- Q: How do monolithic refractories contribute to the control of spalling in iron and steel processes?
- Monolithic refractories play a crucial role in controlling spalling in iron and steel processes. Spalling refers to the phenomenon of the refractory material breaking or flaking off due to thermal stress, mechanical stress, or chemical reactions. This can lead to severe damage to the lining of the furnace or kiln, reducing its efficiency and productivity. To address this issue, monolithic refractories are specifically designed to be more resistant to spalling compared to traditional brick or tile refractories. They are composed of a single, homogenous material that is able to withstand high temperatures and thermal shock, making them less prone to cracking or breaking under extreme conditions. The ability of monolithic refractories to control spalling in iron and steel processes is primarily attributed to their high thermal conductivity and low thermal expansion properties. These characteristics allow them to effectively distribute and absorb the intense heat generated during melting or heat treatment processes, minimizing the thermal stress on the refractory lining. Additionally, monolithic refractories offer better resistance to chemical reactions and erosion caused by molten metal, slag, or gases that are present in iron and steel processes. They are formulated with additives and binders that enhance their chemical stability and protect against corrosion, reducing the risk of spalling due to chemical attack. Furthermore, the monolithic nature of these refractories eliminates the need for joints or seams, which are common weak points in traditional brick or tile refractories. This seamless design ensures a more uniform and durable lining, reducing the chances of spalling occurring at these vulnerable areas. Overall, monolithic refractories contribute significantly to the control of spalling in iron and steel processes by providing superior thermal conductivity, low thermal expansion, chemical resistance, and a seamless lining. This helps to maintain the integrity of the refractory lining, prolonging its lifespan and ensuring efficient and safe operation of the furnace or kiln.
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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