High Alumina Plastic Castable for Hot Blast Stove

Ref Price:
$417.81 - 510.65 / 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 High Alumina Plastic Castable for Hot Blast Stove

ALRE high-alumina plastic castable for hot blast stove made strictly as per international standards, is known for its long operating life, excellent corrosion resistance and high refractoriness.  
 

Technical data of High Alumina Plastic Castable for Hot Blast Stove 

Item

High-alumina plastic castable

CJS-1500

CJS-1600

Al2O3

%

55

65

SiO2+C

%

---

---

CaO

%

---

---

MgO

%

SiO2

%

40

30

Bulk density g/cm3

110×24h

2.3

2.4

1000×3h

---

---

1450×3h

---

---

1500×3h

---

---

C.C.S. (MPa) ≥

110×24h

---

---

1450×3h

---

---

M.O.R. (MPa)≥

110×24h

5-7

5-8

1000×3h

---

---

1450×3h

---

---

1500×3h

10

12

Linear change after heating

110×24h

-0.2~0

-0.2~0

1000×3h

1450×3h

1500×3h

0~+0.5

0~+0.5

Max. service temperature ()

1500

1600

Using area

Linings of heating furnace of steel rolling, incinerator (Ramming construction method)

 

Production line and Packing of High Alumina Plastic Castable for Hot Blast Stove

 

Feature of High Alumina Plastic Castable for Hot Blast Stove
Easy execution and mending
Excellent corrosion and scouring resistance of iron steel


Application of High Alumina Plastic Castable for Hot Blast Stove
ALRE high-alumina plastic castable for hot blast stove could be used widely for linings of heating furnace of steel rolling, incinerator.

 

Q:
Monolithic refractories, also referred to as unshaped refractories, find extensive use in blast furnaces due to their advantageous properties and versatile applications. Blast furnaces benefit from the following common applications of monolithic refractories: 1. Furnace lining: The walls, hearth, and roof of blast furnaces are lined with monolithic refractories. These refractories possess high thermal resistance and excellent insulating properties, safeguarding the furnace structure against extreme temperatures and thermal shocks. 2. Repair of tuyeres and tapholes: Tuyeres are nozzles that introduce air or fuel into the furnace, while tapholes are openings used for tapping molten iron or slag. Monolithic refractories are employed to repair and maintain these crucial components, as they can endure the high temperatures and chemical reactions taking place in these regions. 3. Hot repair and maintenance: The demanding operating conditions of blast furnaces necessitate frequent repairs and maintenance. Monolithic refractories are utilized for hot repair and maintenance purposes, as they can be easily applied in a plastic or semi-plastic state to fill cracks, mend damaged areas, or replace worn-out linings. 4. Resistance to erosion and corrosion: Blast furnace environments are highly corrosive due to the presence of molten iron, slag, and other molten materials. Monolithic refractories with exceptional erosion and corrosion resistance protect the furnace lining against chemical attacks, extending its lifespan. 5. Gunning mixes: Gunning mixes are extensively employed in blast furnaces for their ability to be sprayed or gunned onto the refractory lining. These mixes comprise 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. Repair of slag line and iron runners: 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 utilized to repair and reconstruct these areas, ensuring smooth and efficient furnace operation. To summarize, monolithic refractories play a vital role in blast furnaces, fulfilling numerous functions such as furnace lining, tuyere and taphole repair, hot repair and maintenance, erosion and corrosion resistance, gunning mixes, and repair of slag line and iron runners. Their ability to withstand high temperatures, chemical attacks, and mechanical stresses renders them indispensable in maintaining the integrity and efficiency of blast furnace operations.
Q:
The main factors affecting the erosion resistance of monolithic refractories include the type and composition of the refractory material, the operating temperature and environment, the mechanical strength and density of the refractory, and the presence of impurities or contaminants. Additionally, the design and installation of the refractory lining, as well as the method of installation, can also influence its erosion resistance.
Q:
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:
The unique properties and composition of monolithic refractories enable them to endure mechanical impacts in ladle lip applications. Firstly, their structural integrity is reinforced by being made from a single, uniform material, making them less prone to cracking or breaking when subjected to mechanical forces. Additionally, the inclusion of additives such as fibers or aggregates enhances their resistance to mechanical stresses by distributing the applied forces and reducing stress concentration points. Furthermore, the seamless application process ensures a uniform distribution of impacts and eliminates weak points or joints that could be susceptible to mechanical damage. Moreover, monolithic refractories can be customized with specific compositions and formulations to withstand mechanical impacts, utilizing various binders and additives to enhance toughness, impact resistance, and overall mechanical strength. Finally, the selection of monolithic refractories for ladle lip applications takes into account operating conditions like temperature and chemical exposure to optimize their mechanical properties for the specific challenges posed by ladle lip applications. In conclusion, the homogenous structure, additive inclusion, seamless application process, and customizable composition of monolithic refractories contribute to their ability to withstand mechanical impacts in ladle lip applications, ensuring their durability and effectiveness.
Q:
Monolithic refractories for electric arc furnace applications have several key characteristics that make them suitable for the harsh conditions and high temperatures encountered in these environments. Firstly, monolithic refractories offer excellent thermal shock resistance. Electric arc furnaces operate at extremely high temperatures, and the rapid temperature changes that occur during the melting and refining processes can cause significant thermal stress. Monolithic refractories are designed to withstand these thermal shocks without cracking or spalling, ensuring the longevity and performance of the lining. Secondly, monolithic refractories have high resistance to chemical attack. Electric arc furnaces involve the melting and refining of various metals and alloys, which can create highly corrosive atmospheres. Monolithic refractories are formulated with chemically inert materials and additives that provide resistance to the corrosive effects of molten metals and slag, protecting the lining from chemical degradation. Another important characteristic of monolithic refractories for electric arc furnace applications is their high refractoriness. Refractoriness refers to the ability of a material to retain its strength and integrity at high temperatures. Electric arc furnaces typically operate at temperatures above 1500°C, and monolithic refractories are designed to withstand these extreme conditions without significant loss of properties or degradation. Furthermore, monolithic refractories offer good thermal conductivity. This property allows for efficient heat transfer throughout the lining, ensuring uniform heating and melting of the charge material. It also helps to minimize hot spots and thermal gradients, which can lead to uneven wear and premature failure of the lining. Lastly, monolithic refractories are known 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 complex masonry work. This not only saves time and labor but also allows for easy maintenance and repair of the lining, reducing downtime and improving overall furnace efficiency. In summary, the key characteristics of monolithic refractories for electric arc furnace applications include excellent thermal shock resistance, high chemical resistance, high refractoriness, good thermal conductivity, and ease of installation and repair. These properties make monolithic refractories ideal for withstanding the harsh conditions and demanding requirements of electric arc furnace operations.
Q:
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:
Monolithic refractories protect the lining of ladles and tundishes by forming a strong and durable barrier against high temperatures, chemical reactions, and mechanical stresses. These refractories are designed to be resistant to thermal shock and erosion, ensuring that the lining remains intact and unaffected by the molten metal or slag. They also provide insulation, minimizing heat loss and reducing energy consumption. Overall, monolithic refractories act as a reliable shield, extending the lifespan of the ladles and tundishes and preventing any detrimental effects on the lining.
Q:
To withstand the harsh conditions and high temperatures within a blast furnace, monolithic refractories used in these applications have specific requirements. These requirements encompass thermal stability, high strength, chemical resistance, erosion and abrasion resistance, low porosity, dense structure, and easy installation. Firstly, monolithic refractories must possess excellent thermal stability to endure the extreme temperatures encountered in blast furnaces. They should be able to resist thermal shock and maintain their physical and chemical properties even at high temperatures. Secondly, blast furnace conditions subject refractory linings to significant pressure and mechanical stress. As a result, monolithic refractories need to possess high strength and resistance to mechanical wear in order to withstand the weight of the burden and the movement of materials inside the furnace. Furthermore, blast furnace environments are highly corrosive due to the presence of molten metals, slag, and gases. Therefore, monolithic refractories should exhibit exceptional chemical resistance to prevent chemical reactions with these substances, which could lead to refractory degradation. Additionally, the materials being processed in a blast furnace can cause erosion and abrasion, resulting in wear of the refractory lining. Monolithic refractories used in blast furnaces should be able to withstand these erosive and abrasive forces, ensuring a longer service life. Moreover, blast furnace refractories should have low porosity to minimize the penetration of molten materials and gases. This is crucial as their penetration can cause refractory spalling and damage. Additionally, low porosity helps maintain the refractory lining's thermal stability and overall performance. Furthermore, the refractory lining in a blast furnace should have a dense structure to prevent the penetration of molten slag and metal, which could lead to refractory failure. A dense structure also aids in the refractory's heat insulation properties. Lastly, blast furnace refractories need to be easily installed and repaired due to frequent maintenance and repair requirements. Monolithic refractories offer the advantage of easy installation as they can be cast, gunned, or sprayed onto the refractory surface. This allows for quick repairs and reduced downtime. Overall, meeting these specific requirements ensures the durability and efficiency of the refractory lining, ultimately leading to improved blast furnace performance.
Q:
Monolithic refractories play a crucial role in improving the efficiency of ladle and tundish lining systems in several ways. Firstly, monolithic refractories are made from a single piece of material, which eliminates the need for joints or seams. This seamless construction ensures that there are no weak points in the lining system, reducing the risk of leakage or infiltration of molten metal. Additionally, monolithic refractories offer excellent thermal insulation properties. They have low thermal conductivity, meaning they can withstand high temperatures without transferring heat to the surrounding environment. This insulation capability minimizes heat loss from the ladle or tundish, allowing for better heat retention and energy efficiency. It also helps maintain the desired temperature of the molten metal, preventing premature solidification and maintaining the desired fluidity for casting. Furthermore, monolithic refractories offer superior resistance to chemical attacks from molten metal and slag. They have excellent corrosion resistance properties, ensuring that the lining remains intact and durable even when exposed to aggressive chemical reactions. This resistance to corrosion extends the lifespan of the lining system, reducing the frequency of maintenance and replacement, thereby improving overall efficiency and reducing downtime. Another advantage of monolithic refractories is their ease of installation. Unlike traditional brick or block linings, monolithic refractories can be applied as a single, uniform layer, making the installation process simpler and quicker. This reduces the time required for lining repairs or replacements, minimizing production interruptions and improving the overall operational efficiency of ladles and tundishes. In summary, monolithic refractories improve the efficiency of ladle and tundish lining systems by providing seamless construction, excellent thermal insulation, superior corrosion resistance, and easy installation. These characteristics ensure better heat retention, reduced heat loss, increased durability, and minimized downtime, resulting in improved productivity and cost-effectiveness for metal casting processes.
Q:
Monolithic refractories possess unique properties and composition that make them highly effective in reducing heat loss in iron and steel operations. Unlike other refractories, monolithic ones are made from a single, continuous material, making them resistant to cracks and gaps that could potentially allow heat to escape. One major advantage of monolithic refractories lies in their exceptional thermal conductivity and insulation properties. With their low thermal conductivity, they are able to effectively limit the transfer of heat from hot areas to cooler surroundings. This insulation characteristic helps maintain high temperatures within iron and steel operations, resulting in reduced heat loss to the environment. Another contributing factor to heat loss mitigation is the ability of monolithic refractories to form a tight seal with the metal structures they are applied to. They adhere well to surfaces and fill in any gaps or irregularities, creating a solid barrier against heat loss. By minimizing the possibility of heat escaping, these refractories ensure that the energy generated within the operations is utilized effectively. Additionally, monolithic refractories exhibit high resistance to thermal shock. In the iron and steel industry, rapid temperature fluctuations are common, which can lead to material deterioration and cracks. However, monolithic refractories possess the ability to withstand these temperature changes without compromising their structural integrity. This guarantees the longevity and effectiveness of the refractories in mitigating heat loss. In summary, monolithic refractories play a vital role in reducing heat loss in iron and steel operations through their excellent insulation, ability to form a tight seal, and resistance to thermal shock. These properties enable them to maintain high temperatures, optimize energy utilization, and enhance overall process efficiency.
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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