Water Tube 4 - 10 Ton , 10 - 25 Ton Biomass Sugarcane Bagasse fired Steam Boiler For Sugar Industry
1.Product: Biomass Pellet Fired Steam Boiler
2.Capacity:1 ton/h to 20 ton/h
3.Design pressure:1.0Mpa(10bar/10kg/145psi),1.25Mpa(13bar/13kg/180psi),1.6Mpa(16bar/16kg/232psi),2.5Mpa(25bar/25kg/362psi)
4.Stem temperature:184℃,194℃,205℃,226℃,etc
5.Design fuel:coal,biomass,palm oil shell,wood chips,biomass pellet,firewood, cashew nut, rice husk,solid fuel,etc
Automatic Moving Grate Coal Fired Steam Boiler is horizontal single-drum shell boiler with water-fire tubes. It has chain grate as burning device, upper-in-and-upper-out style natural water circulation with ejection for hot water boiler of this series, the right and left side of furnace as radiant heating surface, two wings of furnace and threaded smoke tubes as convection heating surface and three-dimensional shield shell. Furnace is divided by Smoke baffle wall into combustion chamber (firebox) at front and reburning chamber at back.
Burning process of Biomass Fired Boiler
Fuel falls from coal hopper onto the front of chain grate, moves along with the chain grate and will be preheated, dried, ignited, burned out. Slag will be discharged by slag remover(eliminator) at any time. Herring bone arch is adopted to improve igniting condition. Smoke forms between front and back arches vortex, completely mix with air, burns out and then goes after each other through smoke flue at two wings, front smoke box, threaded smoke tubes, cast iron economizer(for hot water boiler no cast iron economizer), dust remover, draft fan and will be emitted through chimney.
Boiler Feature
1. Reasonable heat surface and burning device, heat efficiency is 4%～5% higher than national standard.
2. Reasonable flue gas speed, heating surface without ash deposition and no abrasion, under the condition of no soot-blowing, the boiler can work full-load, high-efficiency and safety in long term.
3. The big and tall boiler furnace can be designed according to the different fuel to improve the burning rate of fuel and remove black smoke.
4. All independent loop and reasonable coal boiler injected circulation are specially designed and adopted for the hot water boilers. The medium speed in loop of heat surface is higher than national standard
5. 1-20T/H & 0.7-14MW boiler adopt big and high strength grate, add rolling device improves the boilers’ safety, lessen coal leakage and adjust burning conveniently.
6. Over 20T/H & 14MW boiler adopt flake type or beam type chain grate, less coal leakage, convenient burning adjustment. Closed soot cleaning avoid second pollution and save time and labor.
7. Dust inertia separation at the furnace outlet can reduce exhaust gas concentration and lessen abrasion of rear heat surface.
8. Compact structure makes its installation volume smaller than other types of boilers, it will shorten installation period and lower boiler room cost.
Model Item | DZL1 | DZL2 | DZL4 | DZL6 | DZL8 | DZL10 (Assembly) | DZL15 (Assembly) | DZL20 (Assembly) | |
| Steam Capacity (t/h) | 1 | 2 | 4 | 6 | 8 | 10 | 15 | 20 | |
| Steam Pressure (MPa) | 0.7/1.0/1.25 | 1.25/1.6 | |||||||
| Steam Temperature (℃) | 170/184/194 | 194/204 | |||||||
| Feed water Temperature(℃) | 20 | 20 | 20 | 20 | 20 | 70 | 70 | 70 | |
| Heating Area(m2) | Body | ~33 | ~50 | ~100 | ~170 | ~200 | ~250 | 316 | 502 |
Econom izer | 10.56/20.7 | 27.6 | 52.48/33.12 | 87.2 | 98 | 174 | 351 | 382 | |
| Effective Grate Area(m2) | 2.22 | 2.22 | 4.1 | 5.5 | 7.95 | 9.75 | 11.1 | 23.9 | |
| Fuel Type | II Bituminous Coal, Lower Heating Value Q≈21000KJ/Kg | ||||||||
| Fuel Consumption(kg/h) | ~151 | ~302 | ~600 | ~880 | ~1150 | ~1450 | ~2220 | ~1160 | |
| Exhaust Gas Temperature(℃) | 135-145 | ||||||||
| Thermal Efficiency(%) | 83-85 | ||||||||
| Weight of Biggest Part for Transportation(t) | 17 | 23 | 25 | 35 | 45 | 33(Up Part) 28(Down Part) | 42(Up Part) 35(Down Part) | 50(Up Part) 28(Down Part) | |
| Overall Dimension of Boiler Assembled L*W*H(m) | 5.1×2.2×3 | 5.5×2.3×3.3 | 6.6×2.6×3.6 | 7.5×2.9×3.8 | 8.1×3.1×3.8 | 7.7×3.2×3.6 8.6×3.0×2.6 | 10×3.24×3.54 12×3.2×3.08 | 11×3.24×3.54 14×3.2×3.08 | |
Coal steam boiler accessory
Application scope
This biomass steam boiler is widely used in schools, textile mills, clothing factories, printing and dyeing factories, restaurants, food factories, beverage factories, bean products factory, meat products factory, cannery, winery, pharmaceutical factory, packaging factory, building materials factory, coating factory, swimming pool and other enterprises and institutions.
FAQ of biomass steam boiler
1.What is the size of furnace door and blower hopper?
Size of furnace door:
Standard elliptical furnace door:300*800*1500
Blower hopper size:
2 tons conical hopper: 1400*800*1500
4 tons conical hopper: 2200*1400*1500
2.What is the combustion mode of coal/biomass fired boiler?
The combustion mode of coal/biomass fired boiler is layer combustion. Place the flue on the fixed or moved grate, to form an evenly fuel bed with a certain thickness, air comes from the bottom of grate, and combustion occurred on the fuel bed.
3.Material of boiler drum / steel plate / tube.
Boiler drum material: Q245R,carbon steel, executive standard: GB713-2008
Tube material: 20# seamless steel pipe, carbon steel, executive standard: GB3087-2008
Still kettle material: Q345R, alloy steel, executive standard: GB713-2008
4.What is the height of chimney?
The chimney is usually 30m, irrespective of the special circumstances.
5.What are the heat-resistance temperature of grate and furnace?
The heat resistance temperature of grate is related to the grate material, the highest temperature could be as high as 1100℃, and the lower temperature could be 700℃.