SLEP furnace energy saving system and operating method thereof

The invention relates to a SLEP furnace energy saving system and an operating method thereof. The SLEP furnace energy saving system comprises an activating furnace, a steam pocket water supplementingtank, a circulation steam pocket and a heat accumulation chamber, wherein an activating furnace upper heater is arranged at an activating section of the upper part of the activating furnace; an activating furnace lower heater is arranged at a cooling section of the lower part of the activating furnace; a heat accumulation chamber heater is arranged in the heat accumulation chamber; a back-and-forth circulating pipe is arranged between the steam pocket water supplementing tank and the activating furnace lower heater; the steam pocket water supplementing tank is connected to the circulation steam pocket; a back-and-forth circulating pipe is arranged between the circulation steam pocket and the activating furnace upper heater; a back-and-forth circulating pipe is arranged between the circulation steam pocket and the