Why is Natural Gas Aluminum Melting Furnace Better?

Industrial aluminum melting furnaces are equipment used to smelt aluminum and aluminum alloys. They can be divided into many types according to the fuel used. The following is a comparison of industrial aluminum melting furnaces with different fuels for your reference.

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Gas-fired Aluminum Melting Furnace

Advantages

The energy efficiency is high because the gas combustion is relatively complete and there is less heat loss.

Gas prices are relatively stable, so long-term running costs are low.

The operation of the gas furnace is relatively simple and it is easy to control the temperature and smelting process.

Shortcomings

The heating rate is slower and it takes longer to reach the melting point of aluminum.

The furnace needs to be cleaned regularly to ensure the purity of the aluminum liquid.

Oil-fired Aluminum Melting Furnaces

Advantages

It has high energy efficiency and the heat released by fuel combustion is large, which can quickly reach the melting point of aluminum.

The oil furnace heats up quickly and is suitable for rapid smelting and alloying processes.

Shortcomings

The operation is complex and requires professionals to operate and maintain.

Fuel prices fluctuate widely and long-term operating costs are unstable.

Coal-fired Aluminum Furnace

Advantages

The cost of use is low, and the price of coal is cheaper than gas and oil.

Shortcomings

The energy efficiency is low, coal combustion is insufficient, and heat loss is large.

The heating rate is slow and it takes a long time to reach the melting point of aluminum.

It pollutes the environment. Coal combustion will produce a large amount of smoke, dust, and waste gas, and environmental protection equipment needs to be equipped for treatment.

Induction Aluminum Melting Furnace

Advantages

High efficiency and energy saving: The induction aluminum melting furnace adopts the principle of induction heating, which can quickly heat the aluminum liquid to the melting point and has high energy efficiency.

Environmental protection: Because it does not use traditional combustion methods, it can reduce the emission of exhaust gas and smoke and reduce the impact on the environment.

Safe and reliable: The induction aluminum melting furnace adopts a fully enclosed structure, which is simple to operate and can reduce the occurrence of accidents.

High flexibility: Heating power and melting speed can be adjusted according to different production needs, with strong adaptability.

Shortcomings

High equipment costs: The induction melting aluminum furnace has a complex structure and high manufacturing and maintenance costs.

Professional operators are required: Due to the special structure and operating requirements of the induction aluminum melting furnace, professional operators are required to ensure the smooth progress of the melting process.

Analysis of other aspects

Environmental Protection

Gas furnaces and oil furnaces will produce a certain amount of exhaust gas and smoke during the combustion process, but the impact on the environment can be reduced by installing environmentally friendly equipment.

The induction melting aluminum furnace uses a non-combustion method for heating, which avoids the waste gas and smoke produced by traditional combustion methods and reduces atmospheric pollution. At the same time, because it does not use traditional fuels, it can also reduce dependence on fossil fuels and has a certain degree of sustainability.

Coal-heated furnaces pollute the environment most seriously. Not only do they produce a large amount of waste gas and smoke during the combustion process, but the coal mining and transportation processes may also cause damage to the environment.

Safety

Gas and oil furnaces require attention to the risk of fire and explosion, especially during fuel storage and use.

The induction aluminum melting furnace adopts a fully enclosed structure, which can reduce the splashing of molten aluminum and gas leakage, and improve the safety of production. At the same time, the equipment has a high degree of automation, which reduces manual operations and reduces the probability of man-made accidents. However, although induction aluminum melting furnaces are safer, they also require regular maintenance and inspections to prevent electrical failures and accidents.

Due to the use of solid fuel in coal-fired furnaces, there is a risk of coal explosion and suffocation.

Flexibility

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Gas furnaces, oil furnaces, and induction aluminum melting furnaces are more flexible and can adjust the temperature and melting speed according to production needs.

Coal-heated furnaces are less flexible than other fuel types due to their slow heating rate and complex operation.

Maintenance Cost

The maintenance cost of gas furnaces and oil furnaces is relatively high and requires regular maintenance and replacement of parts.

Due to the complex structure of the induction melting aluminum furnace, the manufacturing and maintenance costs are relatively high. At the same time, equipment requires regular inspection and maintenance to ensure its normal operation and service life.

Coal-fired furnaces have lower maintenance costs, but due to their shorter lifespan, they may be similar to gas furnaces in the long term.

Degree of Automation

Induction aluminum melting furnaces and some high-end gas furnaces are equipped with automated control systems that enable remote monitoring and control. While other types may require manual operation and monitoring.

Cost of Investment

The investment costs of various aluminum melting furnaces vary greatly depending on the equipment model, brand, and configuration. Generally speaking, the investment costs of aluminum induction melting furnaces and gas furnaces are higher, while the investment costs of oil furnaces and coal-fired furnaces are relatively low. However, specific investment decisions also need to take into account multiple factors such as equipment life, operating costs, and production needs.

At Last

Gas Furnace for Melting Aluminum Features and Applications

The gas furnace for melting aluminum scrap is an energy-saving aluminum melting furnace.

It can better meet the requirements of strict alloy composition, large single furnace capacity, and discontinuous production in the process of smelting aluminum and aluminum alloys.

It improves working conditions and improves production efficiency.

When using a gas furnace for melting aluminum scrap, daily maintenance is also an important link that cannot be ignored.

Regular maintenance of equipment can not only improve work efficiency but also prolong its service life.

What are the characteristics of the gas furnace for melting aluminum scrap?

1. Small environmental pollution

With natural gas as fuel, the combustion products are mainly water and CO2, which can be directly discharged into the atmosphere.

2. High thermal efficiency and low operating cost

The lining of the gas-fired waste aluminum smelting furnace adopts a full-fiber structure, which improves the thermal insulation performance of the furnace body, saves energy, and reduces production costs.

3. The heat is reused, and the energy-saving effect is good.

The gas-fired scrap aluminum smelting furnace adopts a multiple heat flow channel system design, fully develops and utilizes the energy generated by the burner, and greatly improves thermal work efficiency.

4. Automatically adjust the air pressure in the furnace

The level of air pressure in the furnace has a great influence on the use effect of the heating furnace.

When the pressure in the furnace is high, the furnace gas will rush out of the sealed gaps of the furnace body to form airflow erosion, which will have a great impact on the furnace door and furnace bottom sealed with fiber materials.

At the same time, the high-temperature airflow will also affect the surrounding environment of the furnace body and control devices. When the furnace pressure is low, the cold air is sucked from the sealing gap, which will not only increase the oxidation of the workpiece but also causes the high temperature in the furnace to be quickly drawn out by the negative pressure, resulting in a waste of fuel.

Gas furnace for melting aluminum scrap can smelt materials

1. A single type of scrap aluminum

This kind of waste aluminum is generally a certain type of waste parts, such as automobile reducer casings, pistons of internal combustion engines, front and rear bumpers of automobiles, wheels, aluminum doors, windows, etc. These materials can be put directly into the furnace for smelting.

2. Scattered scrap aluminum material

Such waste aluminum materials are represented by pop cans, aluminum wire, etc. Briquetting is required before smelting.

3. Mixed aluminum scrap

This kind of waste miscellaneous aluminum has a complex composition and different physical shapes. In addition to scrap aluminum, it also contains scrap steel, scrap iron, scrap lead, scrap zinc, and other metals and waste rubber, waste wood, waste plastics, and non-metallic materials such as stones. This type of waste has a complex composition and a small amount of material is relatively large. Such scrap is pre-sorted before smelting, in which steel scrap and other impurities are manually picked out.

How to clean up the waste slag in the furnace?

Cleaning up waste slag needs to be carried out when the gas-fired aluminum melting furnace is working normally. After letting go of the molten aluminum, use a round steel with a length of 3m and a diameter of 30mm-40mm to hit the place with carbon deposits in the furnace from the slag opening. The carbon deposits will fall off one by one, and they can be cleaned up in 1-2 hours. For the slag removal of the scrap aluminum smelting furnace in the production process, one or two times a day is enough. Maintaining this frequency can reduce the failure rate and improve the service life of the scrap aluminum smelting furnace.

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