Specifications:
1) Type: DZL4-1.25-AII instantly installed steam boiler
2) Actual evaporation: 4MT 
3) Pressure: 1.25MPa
4) Hydraulic tested pressure: 1.65MPa
5) Fuel category: soft coal II
6) Water supply temperature: 20oC
7) Air temperature: 25oC
8) Steam temperature: 194oC
10) Smoke exhaust temperature: 163oC
11) Ventilation: mechanical
12) Boiler thermal efficiency: 77.9%
13) Coal consumption (max. coal consumption included): 656kg/h
14) Heated surface of the main part: 114.6m2
15) Heated surface of the coal saver: 38.5m2
16) Effective area of the boiler bar: 4.94m2
17) Metallic consumption of the machine: 16184.45kg
18) Heat preservation materials: asbestos silica acid fiber, vermiculite, clay

The boiler is with single cylinder horizontal instantly installed three-stroke smoke fire tubes. The fire tube is of low investment, convenient installation, quick start-up and reasonable structure covering a small area. The main structure features are as follows:
1) Large heated area 
2) Light chain-grate stoker, reliable, small coal leakage, good smoke and
    dirt elimination, and time saving for installation and maintenance
3) Reasonable wind distribution facilitates for fuel burning
4) Increased effective area of the boiler bar, improved burning extent, and
    great cola adaptability 
5) Step-less shift of the boiler bar
6) Automatic exported tube plate welded at the front-back tube plate with
    top quality

Packing:
Max. transportation size: 6.3 x 2.65 x 3.55m
Max. transportation weight: 26.7MT