Recycled Aluminum Producers Focus on Melting Throughput with a 20-Ton-Class Tilting Aluminum Melting Furnace

In recycled aluminum production, the melting process needs to coordinate with downstream casting operations. For plants processing aluminum and aluminum alloy scrap, the aluminum melting tilting furnace must be evaluated through parameters such as melting rate, furnace capacity, molten aluminum temperature, and discharge control.

The furnace described in the PDF is a 20-ton tilting aluminum melting furnace with a rectangular, single-chamber, hydraulic tilting design and regenerative natural gas combustion. It is intended for melting aluminum and aluminum alloy scrap, followed by skimming, refining, and temperature adjustment.

The specified performance guarantee includes a melting rate of ≥4 t/h. The acceptance test uses 100% aluminum ingots, with melting time calculated until the molten aluminum reaches 720°C.

For overseas B2B buyers searching for a tilting aluminum melting furnace, this provides a defined reference for evaluating melting throughput. However, the ≥4 t/h figure is a performance guarantee under the specified test conditions. It should not be treated as a universal production rate for every scrap type and operating condition.

Actual melting time can be affected by raw material form, charging frequency, target molten aluminum temperature, and operating procedures. Therefore, buyers comparing an aluminum scrap melting furnace or recycled aluminum melting furnace should review the test conditions behind the stated melting rate.

The furnace uses a pair of regenerative natural gas burners that alternate between combustion and exhaust. Heat from the flue gas is recovered through regenerative media and reused to preheat combustion air. The proposal specifies combustion-air preheating around 1000°C, main exhaust temperature around 200°C, and stated regenerative heat recovery efficiency above 85%.

The specified unit gas consumption is ≤65 Nm³/t-Al under the defined performance testing conditions.

After melting and molten aluminum treatment, the furnace uses hydraulic tilting for discharge. Two hydraulic cylinders and proportional-valve control allow continuous adjustment of tilting speed, which can be coordinated with casting speed.

A laser rangefinder continuously detects molten aluminum level, while an encoder measures furnace tilting angle. The electronic closed-loop system specifies molten aluminum level control accuracy of ≤±2 mm.

For recycled aluminum production lines, these parameters provide a technical basis for evaluating melting throughput, gas consumption, molten aluminum level control, and casting-line integration.