Steam is used in many parts of the papermaking process, such as preheating of raw materials, steam heating during cooking, and drying of the dryer section of the paper machine. In general, heating is indispensable for steam. There are also chemicals such as sodium hydroxide, sodium sulfate, sodium carbonate, etc., which are heated and dissolved, and also need to be heated by steam. In addition, steam is used, such as processing and forming paper, black pulp concentration, and the like. The boiler is the heart of the paper mill, the main driving force. ZBG produces various types of paper mill boilers, which produce hot water or steam for the paper industry by burning coal, biomass, oil, natural gas and other fuels. The paper industry covers a wide range of fields, such as paper mills, printing plants, packaging plants, and paper mills.