Breakthrough Development ng Induction Melting Furnace Dual Power Supply

Isang pambihirang pag-unlad ng intermediate frequency induction melting furnace is to use a set of power supply system to supply power to two furnace bodies, which realizes the working system of no production interval operation. Practice has proved that the total effective power of an induction melting furnace is usually not fully utilized during the entire melting period. It is necessary to reduce the power or cut off the power when measuring the temperature of molten iron, sampling, removing slag, and tapping iron, especially in the case of pouring. If the pouring time is long, the utilization rate is only about 50%. In order to achieve the required productivity, the rated power of the power supply must be 118 times the utilization rate of 90%. In order to solve this problem, a dual power supply system was successfully developed. The system uses two identical converters and capacitor banks, one set for each furnace body, but both use a common rectifier and transformer to supply power. Each inverter can be individually controlled, and the total effective power can be allocated to two furnace bodies in any proportion. In addition to providing sufficient power for the insulation of one furnace, the remaining power can be used to melt molten iron in another furnace.

Ang ganitong uri ng power supply ay maaaring maghatid ng kuryente sa dalawang furnace body sa parehong oras, ganap na iniiwasan ang switch o pagdaragdag ng isa pang set ng power supply, at hindi kinakailangan na ilipat ang power supply sa holding furnace body sa panahon ng proseso ng smelting, kaya bilang upang mapanatili ang kinakailangang temperatura ng pagbuhos, sa gayon ay nakakamit ang Dalawang function ng smelting at pag-iingat ng init. Kapag ang isang furnace body ay nasa ilalim ng maintenance, ang power supply ay maaaring ihiwalay sa furnace, at tanging ang iba pang furnace body ang pinapagana, na nagpapataas din ng kaligtasan.