How to use the medium frequency furnace more energy-saving
Release time:
2017-08-04
Casting electricity has always been more concerned about the foundry, how to use it to make your medium frequency furnace more energy-saving:
1. Fast furnace is more energy-saving than slow furnace. The fast furnace of the same set of equipment saves electricity than the slow furnace. The feeding timing, compactness and hearth size will affect the melting speed. These points need to achieve the best power consumption at the same time to minimize.
2. The feeding should take into account the ammeter and make the power stable as much as possible. As much as possible to make the device output maximum power.
3, precise control of molten iron temperature, do not let the temperature is too high or local too high, high power consumption, lining life are unfavorable, a good furnace can do electricity saving and efficient.
4. Choose the right equipment. If the electric furnace is too large or too small, it may increase the power consumption. The same large furnace saves electricity quickly, while the same fast medium frequency electric furnace saves electricity. High voltage saves electricity more than low voltage. The casting time also affects the power consumption, and it is best to control it in 5-10 minutes.
5, do not use low-grade equipment (also not high price is good, after several agent distribution price high after-sales without long-term protection). The market competition is fierce, some manufacturers cut corners, low-cost competition, the worse the equipment materials, the greater the loss. If the copper bar is not plated directly and less thin copper is used, the equipment will seem to be the same when it is used, but the power consumption will be higher and higher.
6, into the line can not be saved, must be large enough, otherwise the long-term loss is quite amazing.
7, develop good boot habits, power as far as possible to pull up and reduce the heat preservation or baking time. When the power is not full, the power factor is low and the loss is large.
8. Improving the utilization rate of the transformer is also equal to saving electricity. A 630KVA transformer should be able to produce 13-15T tons of molten iron within 10 hours. If you can only produce 10-11 tons of molten iron, your average electricity price must be higher than others.
9. Scientific oven. When drying the intermediate frequency melting furnace, the cooling water of the induction coil should be turned down (the 1/3 of normal water quantity is enough). It is better to supply water intermittently and keep the outlet water temperature above 55 degrees, so as to facilitate the smooth discharge of water vapor, thus shortening the drying time. Some furnace workers did not pay attention to this point and supplied water normally. As a result, the water vapor discharged from the cold copper pipe condenses into water and flows back, thus the oven takes a long time, consumes electricity and has poor effect.
Reference power consumption:
Molten iron: 520-610 degrees/ton faster and 750-980 degrees/ton slower
Melting steel: 550-650 degrees/ton faster and 800-1000 degrees/ton slower
Melting copper: 310-360 degrees/ton, melting aluminum: 200-260 degrees/ton
In summary, the reasonable use of intermediate frequency furnaces in accordance with these recommendations can greatly reduce the cost of electricity for your electric furnaces.
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