SZL series biomass-fired hot water boiler

Product thermal capacity:	4.2-17.5 MW
Working pressure:	1.0-1.25 MPA
Outlet temperature:	95/70℃, 115/70℃
Available fuel:	Biomass molding granules, wood chip, corn cob, saw dust
Available industries:	Heating, hotels, schools, hospitals

Introduction of SZL series biomass-fired hot water boiler

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.

Feature of SZL series biomass-fired hot water boiler

1.Steel tube cutting, thread tube pressing and convection tube processing all adopt advanced CNC technology.

2.The welding of smoke tube and the tube plate adopts pre-expansion to eliminate the gap between the tube and tube plate, then be welded by automatic argon arc welding, which effectively eliminate stress and prolong boiler life.

3.Different biomass raw materials are analyzed by numerical simulations, thermal efficiency is more than 90%.