Advantages of dual regenerative combustion technology
The double heat storage furnace produced by the Jieneng Company is an industrial furnace with a patented multi-jet structure and top large impulse flame diffusion combustion technology.
The furnace boasts innovative combustion technology，Furthermore, the single consumption of natural gas is less than 50m³/t (exclusive of insulation)，Furthermore, the utilisation of blast furnace gas, hot dirty gas, mixed gas, natural gas, liquefied gas, producer gas and other gas fuels offers a diverse range of fuel adaptability.
1、In this innovative technology, the P-HTAC control technique is employed, coupled with a distributed control system consisting of PLC+HMI, achieving precise temperature control and more thorough combustion, while also reducing the production of alumina. The efficient operation of this control system ensures a more stable combustion process in the furnace, effectively safeguarding product quality.
2、The medium preheat temperature differs by less than 100°C from the inlet flue gas temperature, maximizing the recovery of residual flue gas heat. The top-mounted, large impulse dispersion flame and low NOx combustion result in a more uniform furnace temperature. These features make the furnace exceptional in energy conservation and emission reduction, meeting the strict requirements of China's "Emission Standard of Air Pollutants for Industrial Kiln and Furnace" (DB41/1066-2020).
3、The burner is installed in the furnace top structure, occupying a smaller area and allowing for a more flexible layout. The combustion and control systems are all installed on the top of the furnace, further reducing the floor area and improving the overall compactness of the furnace.
Top-mounted regenerative burners, with regenerative pulse control and multi-point temperature control, offer higher control precision and more uniform furnace temperature, ensuring the stability of product quality. The two-position three-way reversing valve has a simple structure, stable and reliable operation, and a lifespan exceeding 1.5 million cycles, guaranteeing long-term stable furnace operation. The use of an all-fiber refractory module structure for the furnace roof provides stable performance and quick, convenient maintenance, reducing the furnace's maintenance costs. The ignition system features automatic ignition and flame monitoring functions, interlocked by the control system. It forces the burner to open when the furnace temperature is below 800°C and automatically cuts off the ignition burner when the temperature rises above 800°C, ensuring operator safety. A comprehensive safety control system employs gas, air, and compressed air detection to further enhance the safety performance of the furnace. The heating process can be flexibly set according to the heating curve, meeting the requirements of the heating curve control and ensuring product heating quality.
Finally, the retrofitting project for old furnaces requires minimal engineering work and has a short construction period. Additionally, we can provide a standalone combustion control system, offering users a convenient retrofitting solution.
In summary, this industrial furnace, which adopts patented multi-strand jet structure and top-mounted high-impulse flame dispersion combustion technology, possesses significant advantages in terms of technical performance, environmental protection and energy saving, as well as safety. It represents a brand-new technology since 2022.
Jieneng Company has fully upgraded the dumping-type aluminum alloy gas new heat storage crucible melting and insulation integrated furnace, which is used for smelting and casting of non-ferrous metals such as aluminum, zinc, lead, tin, and for hot dipping. The furnace features dual temperature control modes for both the furnace chamber and the molten aluminum, a heat exchange structure, and an auxiliary combustion air system that preheats and recycles through the flue gas waste heat recovery system. This design saves about 30% of energy compared to conventional integrated burners. It supports continuous melting, and the use of oil cylinders allows the furnace body to tilt 90°, ensuring that the molten aluminum inside the spout crucible can be completely poured out. This furnace boasts simple operation, high thermal efficiency, low burnout rate, low carbon emission, long service life, and other advantages. It adopts a continuous proportional adjusting burner, and the auxiliary fan uses variable frequency proportional control. The Dharma burner is composed of separate components, maintaining the temperature within the set range. The temperatures of the furnace chamber and molten aluminum are automatically controlled, with the burner switching to low flame or cutting off the gas when overheated, and automatically switching to high flame to increase temperature when it drops. This effectively controls the formation of oxides in the furnace, further reducing oxidation burnout.
Jieneng Company is dedicated to the research and development and production of high-performance aluminum alloy gas heat storage crucible melting and insulation integrated furnaces. This equipment is suitable for the smelting, casting, and hot dipping processes of non-ferrous metals such as aluminum, zinc, lead, and tin. Compared to traditional equipment, Jieneng Company's new furnace offers numerous advantages, delivering higher production efficiency and energy-saving effects to users.