New DZH-VII type water-fire tube boiler is a new eco-friendly and energy-saving product co-developed by our company and Professor Li Zhiguang, a famous boiler export, Professor of Harbin Institue of Technology and Director of Beijing Zhiguang Boiler Research Institute, with 30 years research and test, suitable for China and overseas markets. It is called as "Revolution of Industrial Boilers".This type boiler can burn many kinds of fuels, specially furnace design for coal and biomass fuels. Core technology: 1.New "a" type furnace arch 2.Spirally corrugated fire tubes 3.Wing-shape flue 4.Steam-Water seperating equipment 5.Inertia gas-dust separtion 6.Hot water boilers adopt the unique backwater ejection technology 7.Scientific feed air layout technology