Generally, the heating temperature of low alloy structural steel is 1200℃-1250℃. Among various fuel heating consumptions, the lowest energy consumption is medium frequency induction heating equipment. Its heating energy consumption per kilogram of billet is about 0.5kwh, which is 0.202kg standard coal. The energy consumption of heating each kilogram of billet with coal gas (calorific value 5650kJ/m3) is about 0.35kg standard coal. Coal-fired (heating value 25120kJ/kg) energy consumption per kilogram of billet heating is about 0.47kg standard coal. According to the fuel price in Luoyang area, according to the "Luoyang Fourth Institute" calculation based on various energy prices in Luoyang area in 2002, to heat 1t of steel billet, the energy consumption is more economical with medium frequency induction heating equipment, which is 123 yuan/t, followed by coal-fired heating. The price is 145 yuan/t, followed by gas furnace heating, which is 294 yuan/t, and finally the oil furnace, which is as high as 401 yuan/t. According to my country's energy policy regulations, the use of oil as fuel for industrial furnaces is strictly controlled. Coal-fired heating has thick oxide scale on the surface of the billet, large burning loss, deep decarbonization layer, serious environmental pollution, and poor working conditions, so it should be phased out.
As can be seen from the above description, it is more energy-saving to use medium frequency induction heating equipment to heat billets. If you are still using coal stoves, gas stoves, etc. for heating, then I suggest you quickly change to medium frequency induction heating equipment. It can not only reduce your production costs, but also improve the working environment and enable workers to achieve environmentally friendly production.
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GS-ZP-1200
