Coal-Fired Boiler

DZL Coal-Fired Steam Boiler — Single Drum Chain-Grate Type

Coal-fired steam up to 6T.
Features
Single drum boiler structure
Chain-type fuel feeding and combustion system
Separate air chamber design
Steam capacity up to 6 tons
Electronic limit alarm
Safety interlock mechanism

Description

The DZL Coal-Fired Steam Boiler is designed for industrial facilities with steam demand up to 6 tons and stable coal fuel access. Its chain-type fuel feeding system moves coal gradually into the combustion area, supporting continuous steam supply. The boiler includes a separate air chamber design for combustion air distribution, as well as automatic pressure, temperature, and water level control. It is also equipped with electronic limit alarms and a safety interlock mechanism. This model is suitable for regions or industrial applications where coal remains a practical fuel option and fuel cost is a key operating consideration.

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Specifications

Category Item Unit DZL1-1.0AⅡ DZL2-1.25AⅡ, AⅢ DZL3-1.25AⅡ DZL4-1.25AⅡ DZL6-1.25AⅡ
Specification Rated Evaporation t/h 1 2 3 4 6
Rated Steam Pressure MPa 1 1.25 / 1.6
Rated Steam Temperature 184 193 / 204
Water Temperature 20 20 / 105
Design Thermal Efficiency % >80
Fuel Consumption Fuel Consumption kg/h 175 350 525 700 1050
Auxiliary Equipment Blower Model GG1-15 GG2-15 GG4-15 GG6-15
Fan Model GY1-15 GY2-15 GY4-15 GY6-15
Governor Box Type Model GP-5P GP-5PA GP-10P
Slag Way Shave plate-type / spiral
Precipitator Cyclone dust removal / water film dust removal
Pump Input Power kW 3 4 7.5
Heated Surface Ontology 30 58 77 93 170.5
Economizer 18.4 28.16 42.24 52.8 104.64
Pipe Main Steam Valve Diameter DN 50 80 100 125
Water Inlet Diameter DN 25 40
Safety Valve Diameter DN 50 40 × 2 50 × 2 80 × 2
Blowoff Valve Diameter DN 40 50
Chimney Φmm 300 400 450 500 600
Overall Size Weight t 13.6 22.8 23.5 28.5 42
Length m 4.6 5.85 6 6.2 7.3
Width m 2 2.55 2.66 2.76 3
Height m 2.9 3.37 3.35 3.65 4.2
*Design and specifications subject to change without prior notice.
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