Case info
The 4 ton coal-fired boiler with NOx emission lower than 100mg/Nm3 can achieve high efficiency and low emission. This boiler adopts horizontal single pot structure, and the furnace body adopts threaded flue tube to effectively improve the heat transfer coefficient, which makes the boiler thermal efficiency over 82%.
The coal-fired steam boiler produced by ZOZEN has a long service life. In the manufacturing process, ZOZEN adopts pre-expansion of flue tubes and tube plates to eliminate the gap between them, and then adopts the welding process of automatic argon arc welding to effectively eliminate stress and prolong the service life of the boiler.
Customer feedback
After numerous inspections and investigations, we chose ZOZEN as the steam boiler supplier of our Indonesia branch. At present, ZOZEN DZL series steam boiler had been successfully delivered. The features of compact structure and simple installation saved a lot of capital construction investment for us, and the characteristics of high efficiency and low emissions of the boiler also reduced operating costs and pollution emissions.