Calcium ferrite
Brief introduction
Calcium ferrite, also known as pre melted steelmaking slag making agent, provides slag forming conditions for the steelmaking process. Due to the improvement of slagging conditions, the efficiency of lime utilization has increased, which can save lime consumption. The generation characteristics of calcium ferrite in iron ore are factors that need to be considered in sintering ore blending, and have important guiding roles in optimizing ore blending. The generation characteristics of calcium ferrite in iron ore are factors that need to be considered in sintering ore blending, and have important guiding roles in optimizing ore blending. For this purpose, the micro sintering test method and mineral composition and microstructure analysis method were used to study the generation characteristics of calcium ferrite in 10 types of iron ore sintering, and the main factors affecting the generation of calcium ferrite were identified. That is, under the same alkalinity of 2.0 and other conditions, loosely structured limonite, hematite, and higher content of A12O3 and SiO2 are all conducive to the generation of SFCA.
Performance
1. The speed of slag formation is fast. Due to pre melting, a low melting point mixture has been formed, which quickly forms a liquid state when added to the furnace, achieving the goal of slagging in the early stage of smelting. The pre melted steelmaking slag agent (calcium ferrite) added forms liquid slag, and the active lime added afterwards has a large contact surface in the liquid slag, making it easy to dissolve. At the same time, the pre melted steelmaking slag agent (calcium ferrite) contains a substance with high iron oxide that can quickly reduce the melting point of calcium oxide, promoting the rapid dissolution of lime. To provide better slag forming conditions for the steelmaking and smelting process. Due to the improvement of slagging conditions, the efficiency of lime utilization has increased, which can save lime consumption.
2. Due to the good slagging, good dephosphorization conditions have been created in the furnace. To achieve the goal of early dephosphorization, increase the dephosphorization rate by 3-5%.
3. After using pre melted slag, the endpoint carbon content and molten pool temperature are higher than the average value, indicating an increase in heat recovery rate and the steel liquid will not undergo excessive oxidation, which is beneficial for improving the quality of steel.
4. Pre melted steelmaking slag agent (calcium ferrite) can accelerate the dissolution of lime, so there is no need to use fluorite as a melting aid to achieve fluorine free steelmaking; The erosion of furnace lining is reduced, which reduces environmental pollution.
5. Due to its good slag melting, smooth smelting, and reduced splashing of molten steel, the yield of molten steel can be increased by about 1%.
6. Shortening of smelting cycle. Rapid slagging, excellent dephosphorization rate, can achieve shortened smelting time.
Production process
Due to pre melting, a low melting point mixture has been formed, which quickly forms a liquid state when added to the furnace, achieving the goal of slagging in the early stage of smelting. The pre melted steelmaking slag agent (calcium ferrite) added forms liquid slag, and the active lime added afterwards has a large contact surface in the liquid slag, making it easy to dissolve. At the same time, the pre melted steelmaking slag agent (calcium ferrite) contains a substance with high iron oxide that can quickly reduce the melting point of calcium oxide, promoting the rapid dissolution of lime.
Technical parameter
| Ai2O3 | SiO2 | CaO | MgO | Fe2O3 | TiO2 | S | P | N |
| ≤5.0 | ≤60 | ≥35 | ≤2.0 | ≥50 | ≤0.2 | / | / | / |
Production site
Process flow
Company profile
Gongyi Weida Co., Ltd. was founded in 1999, mainly produces refined slag, calcium aluminate, calcium aluminate powder, pre-melted refined slag, sintered refined slag and other products.The annual production capacity reaches 50,000 tons, and the products are sold well to Japan, South Korea, Vietnam, Laos and other countries.
We have an excellent sales team, and we can provide the best service and technical support while selling.Our goal is to ensure the development of the enterprise through high-quality services and high-quality products.We hope to establish business relations with the majority of companies in good faith and achieve mutually beneficial business goals through credit and cooperation.
Our competitive advantage
1.Competitive prices.Make the product competitive in your market.
2.Quick response: We promise to respond quickly as soon as we receive your request.
3.Excellent customer service: The company provides after-sales service to ensure customer satisfaction. We believe that long-term partnerships will bring loyalty.
4.We have our own research team, and the production process can be carried out strictly.
5.We have developed a stable customer base overseas and maintained long-term cooperation.
Faq
1.Who are we?
Our headquarters is located in Henan, China. It started in 1999 and is sold to Japan, South Korea, Vietnam, Laos and other countries.
2.How do we guarantee quality?
The company strictly controls product quality and strictly inspects products before shipment.
3.What can you buy from us?
Refining slag, calcium aluminate, calcium aluminate powder, pre-melted refining slag, sintered refining slag
4.Why do you want to buy from us instead of from other suppliers?
Founded in 1999, it cooperates with Wuhan University of Science and Technology, Luoyang Institute of Refractory Materials and other scientific research institutions, with an annual production capacity of 50,000 tons.
5.Refining slag packaging:
1) The net weight per unit is 25 kg (plastic woven bag); 1 metric ton of P.P bag (waterproof) with sling.
2) The net weight per unit is 25 kg (plastic woven bag); 1 metric ton of plastic film tray.
3) According to customer requirements.
6.Can you visit the site?
of course.Anytime.