The heating system for waste gas incineration of 1# rock wool production line of Shanxi Juxin Energy Saving Technology Co., Ltd. undertaken by Meibao has been reformed and delivered to normal production, saving about 6000 yuan of natural gas consumption per day. In 2020, Shanxi Juxin Company completed the construction of heating system for waste gas incineration of 2# rock wool production line. After achieving significant energy saving effect, it timely carried out technical upgrading and transformation on Line 1. It has played a positive role in energy saving and cost reduction.