Calcined Petroleum Coke as Carbon Raiser for Monolithic Refractories in Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t
- Supply Capability:
- 1000 m.t/month
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Factory Background
The factory is majorly running and operating carbon additive (pitch coke, calcined petroleum coke and anthracite), low nitrogen carbon additive, and brake pad making material. Company is the long term supplier of Sinosteel Corporation, Shanghai Carbon Corporation, the plant of SGL Group the Carbon Company in China and some largest special carbon products producing plants.
YUAI also supplies huge amout of high quality carbon additive and graphite carbon additive to steel plants, foundries and ferrotungsten plants. YUAI has been assigned by BAO STEEL as the only organization for processing pitch coke for export purpose. The group’s major products are constantly exported to Japan, Korea, Malaysia, South East Asia countries, Europe and America, which receive praises by our consumers.
The group has invested numbers of calcinators in Anhui China to ensure the capability of producing and processing huge amount of carbon additive. Further investment is on process. According to the orders from customers, YUAI is able to processing and providing different specifications of carbon additive and other products. To provide best quality of products and to offer customers most satisfied service is YUAI’s operating objectives.
Calcined Petroleum Coke
FC:98.5%min,
S:0.5%max
A:0.8%max
V:0.7%max
Mositure:0.5%max
Size:1-5mm
This product is mainly used in steel-making and foundry. Calcined Petroleum Coke
Calcined Petroleum Coke comes from delayed coke which extracted from oil refinery. Although Calcined Petroleum Coke contains a little bit higher level of sulfur and nitrogen than pitch coke, the price advantage still makes it widely used during steel-making and founding as a kind of carbon additive/carburant.
Technology:
Laborary Equpment
In our lab,we has a high precision balance,mullfe furnace,sample making machine, dring box,sulfur measurement instrument and other calibratiing equipments.As a result,before deliverung to our customers,our products have to pass a strict test to ensure the quality and components.The testing reports will be sent to our customers to confirm untill they satisfy with it.
Packaging & Delivery
Packaging Detail:25kg paper bag into 1t weaving bag 5kg, 10kg and 20kg weaving bag into 1t weaving bag 25kg weaving bag put on pallet covered with entanglement wrap product direct into packing bag 25kg paper bag put on pallet covered with entanglement Wrap 25kg weaving bag into 1t weaving bag.
Delivery Details: 7 days
- Q: How do monolithic refractories resist chemical corrosion in iron and steel applications?
- Monolithic refractories are highly resistant to chemical corrosion in iron and steel applications due to their unique characteristics and composition. These refractories are engineered with a combination of different materials such as aggregates, binders, and additives, which provide them with exceptional resistance to chemical attack. One key factor that contributes to their resistance is the use of high-quality raw materials. Monolithic refractories are typically made from high-alumina or alumina-silica aggregates, which have excellent resistance to chemical reactions. These aggregates are carefully selected to ensure they can withstand the harsh conditions encountered in iron and steel applications, including exposure to molten metal, slag, and various chemical compounds. Moreover, the binders used in monolithic refractories play a crucial role in their resistance to chemical corrosion. Common binders include clay, calcium aluminate cement, or colloidal silica. These binders help to hold the refractory materials together and provide additional protection against chemical attack. They form a dense and impermeable structure, which prevents corrosive substances from penetrating the refractory lining. Furthermore, monolithic refractories often incorporate additives that enhance their chemical resistance. These additives can include antioxidants, anti-spalling agents, and various other compounds that further protect the refractory lining from chemical attack. These additives help to neutralize corrosive elements, inhibit the formation of harmful compounds, and reduce the overall corrosion rate. Additionally, the unique installation method of monolithic refractories also contributes to their resistance to chemical corrosion. Unlike traditional brick refractories, monolithic refractories are installed as a single, continuous lining. This eliminates the need for joints or gaps that could potentially serve as weak points for chemical penetration. The monolithic nature of these refractories ensures a tight and seamless lining, reducing the vulnerability to chemical attack. Overall, the combination of high-quality raw materials, effective binders, and beneficial additives, along with the monolithic installation technique, grants monolithic refractories exceptional resistance to chemical corrosion in iron and steel applications. This resistance allows them to withstand the harsh conditions encountered in these industries, ensuring the longevity and efficiency of the refractory lining.
- Q: How are monolithic refractories repaired or replaced in iron and steel facilities?
- Monolithic refractories in iron and steel facilities are repaired or replaced through a process known as hot repair or hot gunning. This involves using specialized equipment to heat the damaged refractory material and remove it. The area is then prepared for new refractory installation, which is done by either shotcreting or gunning the new material onto the surface. This method allows for quick repairs and replacements, minimizing downtime and ensuring the efficiency and safety of the facility.
- Q: How do monolithic refractories protect the lining of ladles and tundishes?
- 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: Can monolithic refractories be used for the lining of continuous casting tundishes and molds?
- Yes, monolithic refractories can be used for the lining of continuous casting tundishes and molds. Monolithic refractories are versatile and can be shaped or molded to fit the specific requirements of the tundish and mold lining. They offer excellent thermal shock resistance and high-temperature stability, making them suitable for the harsh conditions of continuous casting. Additionally, monolithic refractories have low porosity, which helps prevent the penetration of molten metal and promotes longer service life for the tundish and mold lining.
- Q: How do monolithic refractories withstand the mechanical impacts in furnace door applications?
- Monolithic refractories withstand mechanical impacts in furnace door applications due to their high strength and resistance to thermal shock. These refractories are composed of dense and uniform materials, such as castables or plastics, which provide excellent structural integrity and the ability to withstand heavy loads and vibrations. Additionally, they have low porosity and high thermal conductivity, allowing them to dissipate heat efficiently and reduce the risk of cracking or spalling under mechanical stress.
- Q: What are the factors affecting the thermal expansion of monolithic refractories?
- There are several factors that influence the thermal expansion of monolithic refractories. 1. Chemical Composition: The chemical composition of the refractory material plays a significant role in its thermal expansion. Different chemical elements and compounds have different coefficients of thermal expansion. For example, materials containing high levels of silica tend to have lower coefficients of thermal expansion compared to materials with higher concentrations of alumina. 2. Particle Size: The particle size distribution of the refractory material can affect its thermal expansion. Smaller particle sizes tend to result in higher thermal expansion due to increased surface area and greater contact between particles. 3. Temperature: The temperature at which the monolithic refractory is exposed can greatly impact its thermal expansion. As the temperature increases, the kinetic energy of the particles increases, causing them to move more vigorously and expand. Different refractory materials have different temperature ranges at which they exhibit significant expansion. 4. Thermal History: The thermal history of the refractory material, including its heating and cooling cycles, can influence its thermal expansion behavior. Repeated heating and cooling cycles can induce microstructural changes in the material, affecting its thermal expansion properties. 5. Porosity: The porosity of the monolithic refractory can affect its thermal expansion. Higher porosity generally leads to higher thermal expansion due to the presence of voids and gaps within the material. 6. Binder Content: Monolithic refractories often contain binders that hold the particles together. The type and amount of binder used can impact the thermal expansion of the refractory. Different binders have different coefficients of thermal expansion, which can influence the overall expansion behavior of the material. 7. Thermal Shock: Rapid temperature changes, such as during quenching or exposure to alternating heating and cooling, can cause thermal shock in the refractory material. This can lead to cracks, spalling, and changes in the thermal expansion behavior. Understanding these factors is crucial in selecting the appropriate monolithic refractory material for specific applications, as the thermal expansion characteristics can directly impact the performance and longevity of the refractory in high-temperature environments.
- Q: How do monolithic refractories resist chemical attack from molten metals and slags?
- Monolithic refractories resist chemical attack from molten metals and slags due to their chemical composition and structure. They are typically designed with high levels of resistance to corrosion and erosion, making them suitable for harsh environments. Additionally, they have low porosity, which reduces the penetration of molten metals and slags into the refractory material. The presence of certain additives and bonding agents further enhances their chemical resistance, preventing reactions between the refractory and the molten substances. Overall, monolithic refractories offer a strong barrier against chemical attack, ensuring their durability and longevity in such demanding conditions.
- Q: What are the recommended curing times for monolithic refractories?
- The recommended curing times for monolithic refractories vary depending on the specific type and manufacturer's instructions. However, in general, it is recommended to allow monolithic refractories to cure for at least 24 to 48 hours before subjecting them to any heat or thermal stress. It is important to follow the specific curing guidelines provided by the manufacturer to ensure optimal performance and longevity of the refractory material.
- Q: How are monolithic refractories installed and repaired in iron and steel production facilities?
- Monolithic refractories play a crucial role in iron and steel production facilities by offering insulation and protection against high temperatures, chemical corrosion, and mechanical wear. To install and repair these refractories, careful planning, expertise, and adherence to safety protocols are necessary. To begin installation, the surface must be prepared by eliminating loose material and cleaning the area thoroughly. This step guarantees proper adhesion of the refractory material and may also involve roughening or texturing the surface for better bonding. Next, a workable consistency is achieved by mixing the monolithic refractory material with water or a binder. The material is then applied to the prepared surface using techniques like casting, gunning, ramming, or troweling. The choice of application method depends on factors such as the type of refractory material, repair area, and desired outcome. During installation, it is vital to carefully follow the manufacturer's instructions regarding mixing ratios, curing times, and drying temperatures. Improper installation can result in reduced refractory performance, premature failure, and safety hazards. Repairing monolithic refractories in iron and steel production facilities is an ongoing process due to the harsh operating conditions and mechanical stresses they endure. It is crucial to promptly address any signs of damage or wear to prevent further deterioration. The first step in the repair process is to assess the extent of the damage. This can be achieved through visual inspection, thermal imaging, or non-destructive testing techniques. Once the damage is identified, the appropriate repair method can be determined. Minor repairs can often be accomplished using patching materials that have a composition similar to the original refractory. These materials are mixed with water or a binder to form a paste, which is then applied to the damaged area and allowed to cure. For more extensive repairs, the damaged refractory material may need to be completely removed using mechanical methods like chipping, grinding, or cutting. After removing the damaged material, the surface is prepared as mentioned earlier, and new refractory material is installed using the appropriate application method. It is important to note that the repair process should be carried out by trained personnel with expertise in refractory installation and repair. Safety precautions, such as wearing protective clothing, using proper tools, and following established procedures, should always be observed. In conclusion, the installation and repair of monolithic refractories in iron and steel production facilities necessitate careful planning, adherence to manufacturer's instructions, and expertise in refractory materials. By following proper procedures and promptly addressing any damage, these facilities can ensure the longevity and efficiency of their refractory linings, ultimately contributing to the smooth operation of their production processes.
- Q: What are the advantages of using self-flow castables in the iron and steel industry?
- Self-flow castables bring numerous benefits to the iron and steel industry. Firstly, their exceptional flowability allows for easy filling of intricate molds and complex shapes, enabling the creation of more precise and detailed components. Moreover, this high flowability ensures a flawless casting without any gaps or voids, resulting in a superior product with enhanced mechanical properties. Secondly, self-flow castables possess a remarkable degree of homogeneity, guaranteeing consistent properties throughout the casting. This uniformity is crucial in the iron and steel industry, where achieving desired performance characteristics relies heavily on a consistent composition. Additionally, self-flow castables exhibit a low water demand, reducing drying and curing times. This efficiency translates into faster casting cycles and shorter overall production times. Furthermore, the reduced water demand minimizes drying shrinkage, decreasing the risk of cracking or distortion during the curing process. Another notable advantage of self-flow castables is their excellent resistance to thermal shock. This characteristic is particularly valuable in the iron and steel industry, where extreme temperatures are commonplace. The ability to withstand rapid and drastic temperature changes without cracking ensures the longevity and durability of cast components. Furthermore, self-flow castables demonstrate superior abrasion resistance, making them ideal for applications where castings are exposed to abrasive materials or environments. Their resistance to wear and tear prolongs the service life of the castings, reducing the need for frequent repairs or replacements. In conclusion, self-flow castables offer exceptional flowability, high homogeneity, low water demand, excellent thermal shock resistance, and robust abrasion resistance. These advantages lead to improved casting quality, increased production efficiency, enhanced durability, and reduced maintenance costs in the iron and steel industry.
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Calcined Petroleum Coke as Carbon Raiser for Monolithic Refractories in Iron and Steel Industry
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t
- Supply Capability:
- 1000 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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