Aluminium continuous centralized melting furnace

Aluminium continuous centralized melting furnace

Aluminium continuous centralized melting furnace

Aluminium continuous centralized melting furnace is also known as a vertical aluminum melting furnace,

The vertical aluminum melting furnace is a new type of high-efficiency and energy-saving aluminum melting furnace developed based on the characteristics of continuous casting, rolling and other continuous smelting processes of aluminum.

It can well meet process requirements, improve working conditions and increase production efficiency.

Vertical-structure aluminum melting furnaces are widely used in some small and medium-sized enterprises and die-casting industries.

In this furnace type, a vertical flue with a larger cross-section is installed at the rear of the furnace, and a high-speed burner is installed at the bottom of the flue.

 The aluminum ingots and charging materials are added from the top of the flue, and are quickly melted by the flame impact at the bottom of the flue.

At the same time, the flue gas can fully exchange heat with the added cold charge during the discharge process, so the thermal efficiency of the vertical melting furnace is very high, usually reaching more than 50%, and the energy consumption index is relatively good.

The furnace-shaped structure of the vertical furnace is adopted, the furnace gas circulation is strong, the furnace temperature is uniform, and there is no local overheating or over-burning.

It improves product quality and extends the service life of the furnace.

At the same time, the flame is far away from the furnace material and the burning loss is low.

When charging materials from the vertical furnace, the flame and the charge flow in opposite directions.

The liquid aluminum in the molten pool heats up to the required temperature (720°C ~ 740°C) due to heat transfer by the flame.

The flame penetrates the aluminum material along the bottom of the vertical furnace to the upper part of the shaft furnace, fully carrying out the process.

Through heat exchange, the flame temperature is transferred to the furnace charging materials and then discharged from the furnace top at a temperature lower than 200°C. Therefore, the exhaust smoke loss is significantly reduced and the thermal efficiency is greatly improved.

Aluminium continuous centralized melting furnace is a special equipment for quick and centralized aluminum melting, which can be used for aluminum alloy die casting and foundry factories.

Melting and holding functions both can be obtained in one machine.

Adopting the tower structure, continuous melting, automatic feeding, and automatic discharging.

Separated type ratio adjustment burner, which can keep the furnace temperature with the set temperature range, effectively control the oxidation formation in the furnace, reduces the oxidation loss.

Features of aluminium continuous centralized melting furnace

1. LPG, natural gas, diesel oil and heavy oil can be used for energy

2. Melting capacity: 500kgs-2000kgs/H

3. Adopting low-speed infrared long flame burner for melting, lower melting loss, few oxidation formations, the burning loss is less than 1.5%

4. The furnace body adopted import refractory materials and the whole molding lining, long service life

5. Dual temperature control, direct measure molten aluminum temperature, aluminum liquid temperature control accuracy. Aluminum liquid temperature difference±5 ℃.

6. Tower structure, residual heat can be recycled. Environmentally friendly, energy consumption reduction and high thermal efficiency.

7. Manual/Automatic feeding, automatic discharging, automatic operation, PLC control system, stable performance

8. Reasonable structure design, The melting chamber will be divided into the preheating and melting chamber, with no dead space in the chamber, easy cleaning and maintenance.

Key features:

Vertical tower structure: This design allows for continuous charging of scrap and ingots at the top while molten aluminum is tapped from the bottom, leading to a streamlined melting process.

Direct-fired burner system: Heat is directly applied to the scrap and ingots, offering increased thermal efficiency and faster melting times.

Preheating zone: Waste exhaust gases are used to preheat incoming scrap, further reducing energy consumption.

Holding chamber: A separate chamber separates the molten metal from the melting zone, ensuring consistent temperature and purity.

Automatic slag removal: An integrated system periodically removes slag and dross from the molten metal, improving quality and reducing contamination.

Precise temperature control: Advanced control systems ensure optimal melting temperatures and consistent metal quality.

Advantages:

High efficiency: Compared to traditional batch furnaces, continuous centralized melting furnaces achieve energy savings of up to 30%.

Increased productivity: Continuous operation and faster melting times lead to significantly higher production output.

Improved metal quality: The holding chamber and slag removal system ensure cleaner and more consistent molten metal.

Reduced labor requirements: Automation minimizes manual intervention, leading to lower operating costs.

Enhanced working environment: Enclosed furnace design and fume extraction systems improve air quality and worker safety.

Overall, Aluminium continuous centralized melting furnaces offer significant advantages in terms of efficiency, productivity, and metal quality, making them a valuable investment for large-scale aluminum melting operations. 

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