With the development of the world economy, people’s demand for aluminum is growing, the development of science and technology is becoming more and more rapid, and products are constantly being introduced, according to the needs and development of enterprises themselves, the emergence of aluminum melting furnace to meet some of these needs.
Industrial aluminum melting furnace is more common in reality, especially in the machinery industry, and its appearance has improved the work efficiency, but also energy-saving and environmental protection, occupying a small area.
According to the principle of heat balance, the heat sent into the furnace chamber of aluminum melting furnace is equal to the sum of the heat absorption of the material sent into the furnace and various heat losses. Among them, the heat fed into the furnace chamber includes chemical and physical heat of fuel and physical heat of air and material; various heat losses mainly include exhaust heat loss, incomplete combustion loss, heat loss of furnace wall, etc.; if it is solid fuel, it also includes ash heat loss, etc.
For the molten aluminum furnace using natural gas heating, the main measures to improve its thermal efficiency are to reduce the exhaust temperature and reduce the heat loss of the furnace wall; in addition, reducing the excess air coefficient can effectively increase the flame temperature and reduce oxidation burn loss; improving the temperature uniformity of the furnace chamber can improve the heating quality and reduce the oxidation burn loss of the material, thus increasing the output per unit time of the molten aluminum furnace and reducing energy consumption.
The influence of the intersection angle of the two air streams of preheated combustion air and natural gas on the combustion efficiency.
Increase the cyclonic flow of the natural gas stream. Increase or improve the cyclone of the natural gas burner.
The use of oxy-fuel or oxygen-rich combustion is now a popular and effective measure to reduce fuel consumption and lower Nox emissions.
The effect of small furnace tilt angle on heat transfer efficiency. The pre-gas body has a certain direction when ejected from the small furnace mouth, so that the combustion flame is swept closely to the material, which can increase the radiation and convection heat transfer coefficient of the flame in the material.
The impact of space gas velocity on combustion. To make the air and natural gas mix well, and have a better flame shape, the momentum of air and natural gas must be equal. From this, the appropriate velocity of air and gas can be found.
The efficiency of the operating process of the industrial aluminum melting furnace can be reasonably used to meet the needs of our production.
Post time: Oct-27-2022