Environmental protection type coal steam boilers have the characteristics of fast installation, material saving, man-hour saving, compact structure and small occupation area. This coal-fired boiler has high efficiency, strong overload capacity, wide adaptability of coal, and has the world’s advanced level. The boiler is mainly composed of upper and lower drums, convection tube bundle, water wall tube, down tube and collection box, upper and lower drum longitudinal arrangement, combustion equipment using chain belt type chain grate, driven by a stepless variable speed device. The boiler body is composed of a longitudinal upper and lower drum and a convection tube bundle.
The front and rear water wall tubes of the furnace of coal-fired steam boiler extend downward to the upper part of the grate to form the front and rear arches. The structure is added on the basis of a bulk boiler. On the basis of the same heating area, the radiation heating surface of the furnace chamber is added, and the overload capacity is stronger. The front and rear arches are made of water-wall tubes and poured with high aluminum cement, so as to avoid the shortcomings of breaking and arch collapse of the original boiler three-line arch bricks after long-term high-temperature barbecue, thus prolongs the service life of the arch.
SZL series coal-fired boilers 4-8t/h for quick installation of water pipe structure, in the factory after all installed; 10-15t/h is composed of two large parts, the upper part is the body heating surface, the lower part is the combustion equipment. The membrane water-wall structure is used on both sides of the furnace and the burning chamber, which has the advantages of large heat transfer coefficient, good conduction effect, low heat loss, good air tightness, no deformation of the furnace wall and no ash leakage.
Around the front end of the series boiler arrangement of water-cooled wall connected to the drum bottom connected to the header of the combustion chamber, to absorb the furnace radiant heat, backend layout between water drum on intensive convection tube bundle, high temperature flue gas after combustion after secondary return lateral erosion convection heating surface to separate arrangement of economizer, finally into the dust the chimneys; More than 20t/h assembled water tube boiler is composed of front furnace, rear furnace, convection tube bundle, economizer and chain grate, and assembled into a whole factory. For the coal steam boilers price, you can directly contact ZOZEN boiler manufacturer. Our professional engineers will customize the boiler system plan and quotation for free according to the needs of customers.