The cupola waste gas regenerative incinerator for rock wool production line with an annual output of 30,000 tons of Shaanxi Juxin Energy-saving Technology Co., Ltd. was put into operation recently. The incinerator is the Meibao's patented product, which saves energy and reduces consumption. It has been successfully applied to more than 40 rock wool production enterprises, for example, Zhejiang Xuanming New Material Co., Ltd. (3 sets), Sichuan Pawoke Mineral Fiber Products Co., Ltd. (3 sets), Xinjiang Huameiweiye High-tech Materials Co., Ltd. (3 sets), Hebei Huaneng Zhongtian Chemical Building Materials Group Co., Ltd., Sinoma Technology Co., Ltd., Lianyungang Jianyun Building Materials Co., Ltd., Hefei Haizhida Ventilation Insulation Material Co., Ltd., Hunan Hengsheng New Material Co., Ltd., Chongqing Qinglan Building Material Co., Ltd., Jiangxi Baosheng Insulation Building Material Co., Ltd., Xinjiang West Jinke Building Material Co., Ltd., Tianchang Kangmeida New Insulation Material Co., Ltd. , Jiangsu Dingxu Energy-saving Building Material Co., Ltd., Liaoning Yida New Building Material Co., Ltd., Shandong Longtaiyouhe Building Material Technology Co., Ltd., Shandong Oukesi Rock Wool Manufacturing Co., Ltd. This has achieved obvious economic benefits for the enterprises.