The SZL series biomass-fired boiler is a chain grate water tube boiler designed by ZOZEN Boiler based on advanced international technology and experience. It features a horizontal double-drum and vertical layout structure. The boiler consists of two major parts: the upper part is the heating surface and the lower part is the combustion equipment. The front of the boiler body is surrounded by water-cooled walls. The upper part is connected with drum and the lower part is connected with the header to form the combustion chamber, absorbing the radiation heat of the furnace. At the rear end, a convection tube bundle is arranged between the upper and lower drums. After the fuel is burned in the furnace, the high-temperature flue gas is swept across the convection tube bundle for the secondary return, then guided to a separately arranged economizer and finally enters the dust collector before being discharged through the chimney.
The DZL series third-generation biomass boiler is a water tube boiler composed of three drums. It is independently developed by ZOZEN Boiler and has independent intellectual property rights. The boiler adopts a modular structure, consisting of two large components, the upper and lower parts.
ZOZEN ZZ series water tube steam boiler adopts the "D" type structure. The furnace is on the right side and the convection tube bundle is on the left. Around the furnace is the membrane water wall. The boiler is equipped with an advanced burner, an economizer and a condenser, which can improve the thermal efficiency to more than 98% and reduce the NOx emission to less than 30mg/Nm³. With an automatic control system, the boiler can achieve unattended operation.
SZS series boiler is double drums, longitudinal arranged, "D" type chamber structure. Furnace is on right side and convection tube bundle is on the left, super heater is arranged at convection tube bundle. The body is fixed on the basement by middle and both end flexible supports and make the boiler to expand horizontally to sideways. Around furnace is membrane wall. Furnace and tube bundle is totally separated by the membrane wall at the left side of the furnace. The back part of bundle is sparse shift structure, front part is aligned structure. Smoke from furnace outlet enters re-burning chamber, bundle area, and then from left front part enters spiral fin coil economizer and condenser, finally discharged to atmosphere through chimney.
