SZL
Hot Water Boiler
Coal-Fired
Assembled Boiler
Water Tube
Hot Water
Natural Circulation
Horizontal Boiler
Low Pressure
A
Chamber Combustion Boiler
Industrial
1,2,4,6,10,15 T/H
0.7/1.0 MPa
According to Requirement
SGS,Ce,ASME
PLC Optional
Exported Standard/According to Requirement; FCL
SGS, CE, ASME
China Mainland
84021900
Product Description
Product features
1. The boiler adopts double drum, monolayer arrangement, compact structure, as well as large heating surfaces which are 10% more than those of same kinds of products, featuring the following advantages such as sufficient output, safe and reliable operation, short construction period, and low installation cost ect.
2. The design of cyclone reburning chamber in furnace decreases dust contained in the flue gas. At the same time, incandescent carbon black particles burns further, enhancing the boiler thermal efficiency, and decreasing gas blackness, as a result, the gas emission concentration meets the requirements of grade A environmental protection area.
3. The grate employs the technology patent of small roller structure, boundary grate and so on, improving the operation reliability of the boiler.
4. Since the adoption of technology patent for the sealed wind chamber and bilateral grate air register, and the application of machining cone seal structure to grate adjusting air eauipment, the sensitivity of the grate is duely improved.
5. Other energy saving equipments are optional according to the customers' requirements.





1. The boiler adopts double drum, monolayer arrangement, compact structure, as well as large heating surfaces which are 10% more than those of same kinds of products, featuring the following advantages such as sufficient output, safe and reliable operation, short construction period, and low installation cost ect.
2. The design of cyclone reburning chamber in furnace decreases dust contained in the flue gas. At the same time, incandescent carbon black particles burns further, enhancing the boiler thermal efficiency, and decreasing gas blackness, as a result, the gas emission concentration meets the requirements of grade A environmental protection area.
3. The grate employs the technology patent of small roller structure, boundary grate and so on, improving the operation reliability of the boiler.
4. Since the adoption of technology patent for the sealed wind chamber and bilateral grate air register, and the application of machining cone seal structure to grate adjusting air eauipment, the sensitivity of the grate is duely improved.
5. Other energy saving equipments are optional according to the customers' requirements.

Item/boiler type | SZL4.2-1.0/95/70-AII | SZL5.6-1.0/95/70-AII | SZL7.0-1.0/115/70-AII | SZL10.5-1.25/150/90-AII | SZL5.6-0.7/95-70-AII(Q) | SZL14-1.0/115/70-AII | SZL7(10)-1.0/115/70-1.25-AII dual for steam & hot water |
Rated thermal power (MW) | 4.2 | 5.6 | 7 | 10.5 | 5.6 | 14 | 7MW(10t/h) |
Rated effluent pressure (Mpa) | 1 | 1 | 1 | 1.25 | 0.7 | 1 | 1.0(1.25) |
Rated effluent water temperature ºC | 95(60) | 95 | 115 | 150 | 95 | 115 | 115(194) |
Rated return water temperature ºC | 70(45) | 70 | 70 | 90 | 70 | 70 | 70 |
Combustion mode | Chain grate | Chain grate | Chain grate | Chain grate | Chain grate | Chain grate | Chain grate |
Applicable coal | AII AIII | AII AIII | AII AIII | AII AIII | AII AIII gas | AII AIII | AII AIII |
Open grate area (m2) | 7.23 | 8.6 | 11.72 | 16.4 | 9.9 | 21.33 | 11.99 |
Heated surface of boiler Proper (m2) | 157.6 | 240.2 | 243.2 | 324 | 240.2 | 440 | 232.3 |
Heated area of boiler tail (m2) | / | / | 174.4 | 236 | / | 233 | 52.7 |
The coal consumption at full load operation (Kg/h) | 896.6(943) | 1186.6 | 1507.6 | 2258 | 1186 | 2938 | 1407(1507.3) |
Thermal efficiency % | 175(161) | 175 | 170 | 170 | 175 | 170 | 195(170) |
Dust emission concerntration (mg/Nm3) | <80 | <80 | <80 | <80 | <80 | <80 | <80 |
Indentified thermal efficiency % | 79.2 | 79.59 | 82.17 | 82.3 | 79.59 | 82.5 | 78.28 (steam boiler) 76.75 (hot water boiler) |
Max part size for transportation (L×W×H) mm | 5370*2970*3550 | 6720*3400*3540 | 8800*3230*2600 | 9900*3400*3530 | 6720*3400*3540 | 10700*3550*3400 | 7570*3230*3540 |
Max part weight for transporation cargo (t) | 36 | 26.4 | 30.51 | 36 | 26.4 | 41 | 33.3 |
Installed exterior size(L×W×H) mm | 8370*5330*3860 | 9000*5000*5600 | 11320*3600*5400 | 13000*4500*5800 | 9000*5000*5600 | 14000*4730*7820 | 11800*4250*5750 |





