我国是世界上一次能源以煤为主的国家之一 ,煤炭在一次能源的生产和消费结构中约占 3 /4。随着煤炭的不断开采 ,资源的减少 ,加之煤炭价格和煤炭产业结构的调整 ,全国范围内小煤窑的关闭 ,再加上汽车运输限载 ,致使煤炭价格居高不下 ,燃煤企业成本加大 ,为此众多燃煤企业把节能 China is one of the countries in the world where coal is the dominant energy source. Coal accounts for about three-quarters of the primary energy production and consumption structure. With the constant exploitation of coal and the reduction of resources, together with the adjustment of coal prices and the industrial structure of coal, the closure of small coal mines across the country and the limited carriage of motor vehicles, coal prices have remained high and the cost of coal-fired enterprises has increased , For which many coal-fired enterprises to save energy