DZH biomass hot water boiler It is a single drum longitudinal movable grate boiler. It is suitable for burning briquetted biomass fuel, or pure coal or mixed coal and briquetted biomass fuel. There is an economizer at the tail. The discharged ash and slag can be directly used as farm manure, which is an energy-saving and environmental protection product. Equipped with blower and induced draft fan for mechanical ventilation, complete control and monitoring instruments, and safe and reliable boiler operation. The water walls on the left and right sides of the furnace are radiating heating surfaces, the two wings of the furnace are convection heating surfaces, the boiler drum is equipped with threaded smoke pipes, and the convection heating surface. The furnace wall is built with refractory bricks, and the heat-resistant concrete pouring and tamping molding process is used. The outside of the boiler host is a three-dimensional fender shell.

DZH biomass hot water boiler The arch tube sheet and threaded smoke pipe are used to form the drum, which changes the drum from quasi rigid body to quasi elastic body structure, cancels the bracing parts in the tube sheet area, and reduces the stress. The smoke pipe in the tube sheet is changed from two return to single return, which solves the problem of tube sheet crack. Due to the arrangement of rising tube banks at the lower part of the drum, the dead water area at the bottom of the drum is eliminated, the sludge is not easy to deposit, and the high temperature area of the drum can be well cooled to prevent the drum from bulging at the lower part of the drum. Enhanced heat transfer was achieved by using heat transfer threaded smoke tubes.