DZH/DZL series biomass fired hot water boiler, use movable fire grate, equip with blower, draft fan, economizer, deduster, automatic water treatment, water pump, steam header, control cabinet, valves and meters etc auxiliary machines. It is the most popular products in Southeast Asia, Central Asia, Africa.
1. High Thermal Efficiency
Spirally corrugated tube strengthen the heat transfer and improve thermal efficiency. Flue gas has the foundation of disturbance, avoid ash depositing in tube.
2. Avoid Bulging
Riser tube bundle under boiler drum, remove the dead water region at the bottom of drum, sludge is not easy for depositing, the high temperature area of drum has better cooling, prevent bulging.
3. Avoid Tube Plate Cracking
3.1 The boiler adopts arched tube plate and spirally corrugated tube, change the quasi-steel body into quasi-elastic body structure, reduce stress.
4. Sufficient Output
Adopts horizontal type three pass structure and large furnace, to ensure the sufficient combustion, and the boiler could absorb the thermal expansion effectively. The large diameter boiler drum increases the radiant heating surface, to ensure the sufficient output.
5. Environmental protection
The splayed wall and smoke outlet have the function of dust removal, decrease the concentration of smoke emission.
Boiler Model | DZL1 | DZL1.4 | DZL2.1 | DZL2.8 | DZL4.2 | DZL5.6 | DZL7 | ||||||
Rated Power(MW/H) | 0.7 | 1.4 | 2.1 | 2.8 | 4.2 | 5.6 | 7 | ||||||
Working Pressure(Mpa) | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | ||||||
Rated outlet water temperature(℃) | 95/115 | 95/115 | 95/115 | 95/115 | 95/115 | 95/115 | 95/115 | ||||||
Rated back water temperature(℃) | 70 | 70 | 70 | 70 | 70 | 70 | 70 | ||||||
Efficency(%) | ≥83 | ||||||||||||
Fuel | Coal、wood chip pellet、rice husk ect, | ||||||||||||
Fuel consumption(kg/h) | 174.3 | 348.6 | 517 | 687.2 | 1024 | 1374.3 | 1708 | ||||||
Heating area(㎡) | 35.2 | 79.8 | 114.2 | 168 | 207.6 | 300.5 | 391 | ||||||
Grate area(㎡) | 1.97 | 3.2 | 4.8 | 5.5 | 7.04 | 11.7 | 13.6 | ||||||
Power consumption(KW) | 18 | 26 | 31.5 | 34 | 62.4 | 76.2 | 87.2 | ||||||
Water volume(m³) | 5.1 | 5.58 | 6.95 | 9.3 | 14 | 17.8 | 20.5 | ||||||
Transport size(M) | 5.1*2.2*2.9 | 6.14*2.6*3.3 | 6.33*2.7*3.3 | 6.88*2.7*3.3 | 7.29*3.19*3.7 | 7.8*3.4*3.7 | 8.5*3.4*3.7 | ||||||
Host weight(T) | 15 | 18 | 24 | 27 | 31 | 33 | 39 | ||||||
Main Pipe diameter(DN MM) | 80 | 100 | 125 | 125 | 150 | 200 | 200 | ||||||
Pipe diameter of feed water(DN MM) | 80 | 100 | 125 | 125 | 150 | 200 | 200 | ||||||
Pipe diameter of safe valve(DN MM) | 1*32 | 1*50 | 2*40 | 2*40 | 80 | 2*50 | 2*80 | ||||||
Pipe diameter of blow-down valve(DN MM) | 3*40 | 3*40 | 3*40 | 3*40 | 3*40 | 3*40 | 3*40 | ||||||
Chimney(φ) | 280 | 350 | 410 | 410 | 530 | 720 | 750 |
guarantee the accuracy of cutting dimension and the correctness of cutting materials.
Max Thickness plate is 30 mm,
max. width of plate is 2500 mm,
max. diam. of cylinder is 3000 mm.
ensure plate end surface is smooth, and groove size is accurate. Better for group welding pressure parts.
Test stretching and bending for plate to guarantee the weld ability and materials are both reach standard.
Inspect the strength, sealing of pressure parts and boiler security operation. 100% qualified.
Confirm fuel consumption and thermal efficiency, all report data certified by Quality inspection office.
Water proof and damp proof package for Boiler Host