SZL Series Coal Fired Hot Water Boiler

SZL series coal-fired hot water boiler


Product thermal capacity:2.8-29 MW


Working pressure:1.0-1.25 MPA


Available fuel:Bituminous Coal,Lean Coal,Anthracite


Available industries:Heating, hotels, schools, hospitals


SZL Series Hot Water Boiler Advantages

CNC Manufacturing Technology

SZL series double-drum longitudinal-type chain furnace drain hot water boiler adopts quick assembly or assembly structure. 2.8~4.2MW is the structure of quick-loading water pipe, which is factory-installed after being completely assembled in the factory; 4.2~29MW is composed of two upper and lower parts, the upper part is the body heating surface, and the lower part is the combustion equipment.

The front end of this series of coal fired boiler body is surrounded by the upper part of the water-cooled wall and the lower part of the drum is connected with the header to form a combustion chamber to absorb the radiant heat of the furnace, and the rear end of the SZL series hot water boiler is arranged with a dense convection tube bundle between the upper and lower drums, and the high-temperature smoke after combustion. After passing through the second return stroke, the gas is flushed to the convective heating surface and then led to the separately arranged economizer, and finally enters the dust collector and is discharged through the chimney.


SZL Series Hot Water Boiler Specification Parameters


Model Rated thermal power(MW) Rated working pressure(MPa) Rated output water temperature(℃) Return water temperature(℃) Maximum transport size(m)
SZL2.8-0.7/95/70-All 2.8 0.7 95 70 7.4×2.7×5.3
SZL4.2-1.0/115/70-AⅡ 4.2 1 115 70 7.0×2.7×3.5
SZL5.6-1.0/115/70-AⅡ 5.6 1.0 115 70 6.9×3.2×5.3
SZL5.6-1.25/130/70-AⅡ 5.6 1.25 130 70 6.9×3.2×5.3
SZL7.0-1.0/115/70-AⅡ 7 1.0 115 70 7.9×3.3×3.5
SZL7.0-1.25/130/70-AⅡ 7 1.25 130 70 7.9×3.3×3.5
SZL14-1.0/115/70-AⅡ 14 1.0 115 70 11.0×3.2×3.5
SZL14-1.25/130/70-AⅡ 14 1.25 130 70 11.0×3.2×3.5
SZL21-1.0/115/70-AⅡ 21 1.0 115 70 9.9×3.3×3.6
SZL21-1.25/130/70-AⅡ 21 1.25 130 70 9.9×3.3×3.6
SZL29-1.0/115/70-All 29 1.0 115 70 8.0×3.8×3.8
SZL29-1.25/130/70-All 29 1.25 130 70 8.0×3.8×3.8