D Type 1tph to 20 tph Water Tube Rice Husk Steam Boiler used in Sugar Factory
Rice Husk Steam Boiler structure features
1.Three pass structure.
Function: ectend the flow of smoke and enhance the heat transfer.
2. Water-fire tube type.
Function:Fire tube:the flue goes through furnace, wing-shape flue and fire tubes to form three pass as said in the above.Water tube: water in some tubes rises after heating and some declines, which forms a natural circulation.
3. Spirally corrugated tube
Function:heat transfer enhancement, reduce the spirally corrugated tube numbers, and improve the suppleness to avoid the tube plate cracking.
4. Arched tube plate
Function:reduce the thermal stress of weld and improve the tube plate suppleness,meantime, simplify the structure and save the boiler room space.
5. Wing-shape flue.
Function:reduce the smoke temperature of high temperature tube plate to slow down subcooled boiling. In this way, it can prevent tube plate cracking, reduce heat load of boiler bottom and prevent bulge.
6. Simple circulation loop, large sized down pipe and bottom container.
Function: Prevent tube explosion , increase the reliability of water circulation ,avoid deposition of debris and dirt,reduce fuel consumption and improving the operating time of boiler.
7. New type arch made with refractory cement by overall pouring and big size furnace.
Function:Reduce fuel consumption and protect the environment.
8. Optimally designed water feeding apparatus and steam separation device.
Function:The optimally designed water feeding apparatus reduces overhigh water level in shell high temperature zone due to overheat;
Advantages of Rice Husk Steam Boiler
1. Easy Installation
2. Reliable Operation
3. Easy Maintenance
4. Full Combustion
5. High Efficiency Grate
6. Easy to Remove Ash
7. High Security
8. Long Life and Durable
9. Environmental Protection and Low Noise
10. Normative Production
11. High Quality Services
Technique Rice Husk Steam Boiler parameter
| Boiler Model | Rated capacity | Rated pressure | Feed water temp | Steam temp | Active grate area | Exhaust gas temp. | Design efficiency | Fuel consump | Main part weight |
| t/h | MPa | ℃ | ℃ | ㎡ | ℃ | % | Kg/h | Ton |
| DZL1-1.0-AII | 1 | 1 | 20 | 184 | 1.85 | 157 | 80 | 118 | 14.2 |
| DZL2-1.25-AII | 2 | 1.25 | 20 | 194 | 3.4 | 163 | 80 | 238 | 23.2 |
| DZL4-1.25-AII | 4 | 1.25 | 60 | 194 | 5.18 | 180 | 80 | 472 | 28 |
| DZL6-1.25-AII | 6 | 1.25 | 60 | 194 | 7.55 | 166 | 80 | 685 | 47.6 |
| DZL10-1.25-AII | 10 | 1.25 | 105 | 194 | 12 | 151 | 80 | 1128 | 56 |
| DZL15-1.25-AII | 15 | 1.25 | 105 | 194 | 18 | 161 | 81 | 1698 | 18.8 |
| DZL20-1.25-AII | 20 | 1.25 | 105 | 194 | 22.9 | 150 | 81 | 2241 | 19.1 |
| DZL30-1.25-AII | 30 | 1.25 | 105 | 194 | 27.5 | 157.6 | 81 | 3380 | 25.6 |
| DZL40-1.25-AII | 40 | 1.25 | 105 | 194 | 34.5 | 162.2 | 81 | 4481 | 19.68 |
FAQ
1. What are the tube seat at the top of steam boiler ?
Pressure gauge - safety valves (two) - main steam valve - auxiliary valve - water inlet
2. 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
3. What is the height of chimney ?
The chimney is usually 30m, irrespective of the special circumstances.
4. 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 1200℃, and the lower temperature could be 700℃. The highest heat resistance temperature of furnace could be about 1700℃~1800℃.
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D Type 1 Tph - 20 Tph Rice Husk Fired Boiler Water Tube Three Pass Structure Images
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