Natural gas regenerative furnace – Consultation on regenerators

Isn’t it more cost-effective to use ceramic refractory heat storage balls? The JF corundum-mullite regenerative balls produced by Jinfeng Company possess notable advantages such as low shrinkage rate upon reheating, high softening temperature under high temperatures, corrosion resistance, high strength, large heat storage and release capacity, good thermal shock stability, excellent thermal conductivity, and a low coefficient of thermal expansion, making them outstanding refractory materials. By preheating both the gas (from blast furnaces or converters) and air (while for oils and gases with high calorific value, a single regenerative method using combustion air is employed), regenerative heating furnaces can achieve environmental and energy-saving benefits: a 20–50% reduction in exhaust gas volume, an exhaust gas temperature reduced to below 150 degrees, a 15–20% increase in production capacity, a 50% reduction in the heating time required for billets, and a 30–50% decrease in oxidation losses. 1) The high-efficiency heat storage pellets produced by our company have a specific surface area of up to 240 m2/m3. 2) The numerous small balls divide the airflow into very small streams; as the airflow passes through the regenerator, intense turbulence is generated, which effectively breaks through the boundary layer on the surface of the regenerator. Due to their small diameter, these balls have a small thermal conductivity radius, low thermal resistance, high density, and good heat conduction properties, which enables them to meet the requirements for frequent and rapid direction changes in regenerative burners. 3) The regenerator can be reversed 20–30 times per hour; after passing through the regenerator bed, the high-temperature flue gas can have its temperature reduced to around 130°C before being discharged. 4) The high-temperature gas and air can be preheated to a temperature only about 100°C lower than that of the flue gas by passing through the regenerator along the same path, achieving a temperature efficiency of over 90%. 5) Due to the very small size of the heat storage material, combined with the high flow capacity of the granular bed, an increase in resistance caused by dust accumulation does not affect the heat exchange performance. 6) The heat storage pellets have strong antioxidant and slag-resistant properties. 7) The ceramic balls are very easy to replace and clean, and can be reused. JF regenerative balls are suitable for use in regenerative combustion systems for industrial furnaces that use gaseous and non-gaseous fuels. They are particularly appropriate for regenerative heating furnaces in the steel industry, regenerative ladle dryers, regenerators in air separation equipment used in the air separation industry, and regenerative melting furnaces in the non-ferrous metal industry. They can also be used as regenerative media in various applications such as regenerative car furnaces, regenerative electric boilers, and regenerative incinerators in large forging plants. JF heat storage balls are divided into solid balls and perforated balls with uneven surfaces. Contact number: 13879943678, Zhou Xiang.