Furnace power reduction system and power reduction method in casting manufacture

The present invention relates to a system for reducing power consumption of a furnace in casting manufacture and a power consumption reduction method thereof. According to the present invention, the method comprises: a management server (10); a melting weight and power collection unit (20) including a weight measurement unit (210) using a load cell to measure weight data of raw materials of casting and a melting furnace power measurement unit (220) measuring power of a melting furnace in which the raw materials for casting are filled and melted; an energy analysis unit (30) including a basic unit analysis module (310) analyzing power usage per one ton of the raw materials required when the total weight of the raw materials charged in the melting furnace is melted and a recursive model analysis module (320) for calculating energy saving of the melting furnace; an excessive melting power usage alerting/blocking unit (40), when the melting power usage exceeds a threshold value in accordance with a comparison value analyzed in the energy analysis unit (30), alerting an operator of excessive supply of melting power and blocking power; and a display unit (50), when the melting power usage does not exceed the threshold value in accordance with the comparison value analyzed in the energy analysis unit (30), displaying a result of the energy analysis unit (30) and an expected energy saving amount on an operator screen. Accordingly, when the raw material, such as pig iron, scrap iron, recycled iron, and the like, which is classified as a major material in a casting process for acquiring a casting product, a sub material for securing characteristics of casting, an additional input to supplement or modify physical properties, and the like are mixed and charged in the melting furnace and power is supplied to the melting furnace so that molten metal is acquired, the corresponding power is optimized such that reduction of the power supplied to the melting furnace to acquire the molten metal is promoted, thereby maximizing energy use efficiency. 본 발명은, 관리서버(10); 로드셀을 이용하여 주물 원자재의 중량데이터를 측정하는 중량측정부(210)와, 상기 주물 원자재가 장입되어 용해되는 용해로의 전력을 측정하는 용해로 전력측정부(220)로 이루어지는 용해 중량 및 전력취합부(20); 용해로에 장입된 소재의 총중량이 용해로에 장입되어 용해되는 과정에서 소요되는 1톤당 전력량을 분석하는 원단위분석모듈(310)과, 용해로의 에너지 절감을 산출하기 위한 회귀모델분석모듈(320)로 이루어지는 에너지분석부(30); 상기 에너지분석부(30)에서 분석되는 비교값에 따라 용해 전력량이 임계치를 초과할 경우 용해 전력량의 공급이 초과되었음을 경보하고 전력을 차단하게 되는 용해전력량 초과 경보/차단부(40); 상기 에너지분석부(30)에서 분석되는 비교값에 따라 용해 전력량이 임계치를 초과하지 않는 경우 상기 에너지분석부(30)