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SZL Packaged Coal Fired Boiler

Capacity : 4~35t/h

Pressure : 0.7~3.8Mpa

Fuel : Coal

Application : Textile plant, food factory, wood industry, farm, hotel, school, etc.

Brief Intro : SZL series double drums boiler is horizontal type water tube boiler with high steam quality. The boiler adopts membrane water wall, low thermal inertia design, and water cooling combustion chamber.

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>> Introduction
SZL series double drums boiler is horizontal type large capacity water tube boiler with high steam quality. Compare with the previous boiler, the new type SZL boiler adopts membrane water cooling wall, low thermal inertia design, and water cooling combustion chamber. Boiler with steam capacity lower than 4t/h is fast assembly water tube structure, the boiler with steam capacity between 6~25t/h is consisted of upper part (boiler heating part) and lower part (combustion equipment). This series boiler has reached the international advanced level on technology and performance, has the advantages of compact structure, convenient installation, short install period, low cost, and environmental protect.
Introduction
>> Features
Membrane water wall

1. Membrane water wall

Adopts water cooling combustion chamber, increase the radiant heating area, improve the output and thermal efficiency.The boiler body use membrane water wall structure, good sealing, low heat lose.

2. Excellent chain grate

The grate is 500~1000mm longer than others, the fuel combustion time is longer, improve the combustion efficiency. The small scale flake grate could resist the temperature as high as 1200℃, long working life.The chain grate has a low coal leakage because of the small gap.
Membrane water wall
Sufficient output

3. Sufficient output

The boiler is equipped with double drums, membrane water wall, and large diameter furnace, the radiant heating area increases more than 50%, achieves sufficient output.

4. Both sides air inlets

Boiler adopts bilateral air inlets and independent wind chambers, could adjust wind volume and pressure flexible, to ensure the sufficient combustion.
Both sides air inlets

>> Parameter

Steam Boiler

Model

Steam capacity (t/h)

Working pressure (MPa) Thermal Efficiency (%) Coal consumption  (kg/h) Weight (t) Overall dimension L*W*H(m)
SZL2-1.25/1.6/2.5-AII 2 1.25/1.6/2.5
81 240 25 5.8×2.35×3.5
SZL4-1.25/1.6/2.5-AII 4 1.25/1.6/2.5 81 480 32 7.8×2.4×3.6
SZL6-1.25/1.6/2.5-AII 6 1.25/1.6/2.5 81 720 43 8×3×4.87
SZL8-1.25/1.6/2.5-AII 8 1.25/1.6/2.5 81 960 63 8.1×3.2×5.7
SZL10-1.25/1.6/2.5-AII 10 1.25/1.6/2.5 81 1200 87 8.2×3.5×5.7
SZL12-1.25/1.6/2.5-AII 12 1.25/1.6/2.5 81 1440 100 10.6×3.6×5.7
SZL15-1.25/1.6/2.5-AII 15 1.25/1.6/2.5 82 1830 105 12.5×3.7×5.8
SZL20-1.25/1.6/2.5-AII 20 1.25/1.6/2.5 82 2400 140 13.8×4.2×5.8
SZL25-1.25/1.6/2.5-AII 25 1.25/1.6/2.5 82 3000 170 15.6×5×6.135
SZL30-1.25/1.6/2.5-AII 30 1.25/1.6/2.5 82 3600 210 17.7×8.5×9.5

Note: 1.Parameter is for reference only, if any changes should follow the factory technical data. 

 2.Available fuel: II class bituminous coal, lower heating value: Q≈21,000 KJ/Kg

Hot Water Boiler

Model

Rated Power(MW)

Working pressure(Mpa)

Supply water temp.(℃)

Return water temp.(℃)

Fuel consumption(kg/h)

Thermal efficiency(%)

SZL1.4-0.7/95/70-AII 1.4 0.7 95 70 ~300 80
SZL2.8-0.7/95/70-AII 2.8 0.7 95 70 ~590 80
SZL4.2-1.0/95/70-AII 4.2 1.0 95 70 ~880 80
SZL5.6-1.0/95/70-AII 5.6 1.0 95 70 ~1160 80
SZL7-1.0/95/70-AII 7 1.0 95 70 ~1450 80
SZL10.5-1.0/115/70-AII 10.5 1.0 115 70 ~2200 80
SZL14-1.0/115/70-AII 14 1.0 115 70 ~1160 80

Note: 1.Parameter is for reference only, if any changes should follow the factory technical data. 

 2.Available fuel: II class bituminous coal, lower heating value: Q≈21,000 KJ/Kg

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