Sintering Furnace Equipment Composition Advantages and Structural Features Explanation:
Utilizing the domestically advanced strip-type high-temperature flame direct ignition technology, the combustion ignition of the surface of the mixed material layer is achieved, causing the raw material particles to bond together. Considering the actual production conditions on-site, a rational, practical, and advanced technological process is adopted, integrating the ignition furnace with the insulation furnace, thus saving investment and space and shortening the connecting pipelines. This ensures the intensity of ignition and the quality of sintered ore, while also providing reliable safety in installation, maintenance, and operation.
1. The body is mounted on a movable carriage on the pre-laid track of the sintering platform. Select a reasonable ignition time to determine the length of the ignition section while meeting the requirements of the entire ignition process; the length of the ignition path should match the size of the sintering machine's windbox. The high-temperature zone is concentrated in the ignition section, with an ideal ignition atmosphere inside the furnace. Improved furnace height: 400mm. The ignition furnace is equipped with 3 temperature measurement points and 2 observation fire-view holes. Facilitates safe operation during the production process. The overall equipment operating system has comprehensive safety facilities, with flexible and reliable operation and control.
2. Ignition Burner Design: Utilizing a cutting-edge new ignition technology that combines flame and atmosphere, domestically advanced. The burner is a high-temperature gas jacket type with strong swirling, strong mixing, and short flame, achieving high combustion efficiency; the flame forms a concentrated high-temperature zone, enhancing the heat intensity of the ignition material surface. The burner combustion head is made of heat-resistant stainless steel. The burner is arranged rationally, with three rows of long-arc installations, increasing the edge ignition capability and expanding the ignition area to ensure uniform ignition. The ignition atmosphere inside the furnace is ideal. A reasonable ignition time is selected to meet the ignition process requirements.
3. Furnace Refractory Lining Design: The refractory lining is constructed using high-strength cast-in-place pre-molded material structure, with on-site assembly. The main material contains more than 75% AL2O3, mixed with fibers and coking slag aggregates. Service temperature range is 1100°C to 1300°C, with a maximum service temperature of ≥1400°C and refractoriness under load ≥1750°C. After firing at 1350°C, the room temperature compressive strength is ≥100 MPa. The room temperature bending strength, after firing at 1350°C, is ≥12 MPa. The high-temperature bending strength at 1250°C is ≥7.5 MPa. The linear shrinkage on reheat (at 1500°C, 2h) is within ±0.3%, with a softening point under load ≥1580°C. The number of water-quenching cycles at 1100°C is ≥45. Ensures the炉top hoisting hooks are safe and stable for use, with a short installation period and reduced pre-commissioning baking time. The furnace body features an enclosed hearth to reduce metal shell heat loss. The prefabricated blocks are baked strictly according to the baking curve before shipment, with a total life of the ignition furnace lining exceeding 4 years.
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