The two waste gas incinerators for rock wool production line built by Meibao have been put into operation recently, which greatly reduces the natural gas consumption of the production line. A single waste gas incinerator saves about 1.5 million yuan in natural gas fuel annually. The waste gas incinerator for rock wool production line of Meibao has been used by more than 50 users at home and abroad, and the energy saving effect is very obvious. Especially in the current situation of rising global energy prices, it is more necessary to use waste gas to save energy and reduce consumption.