DZH type active grate biomass steam boiler has a wide range of fuel sources. It is a renewable green energy source. It contains almost no sulfur and less ash. Its growth process can absorb all the CO2 generated by the combustion process and achieve zero CO2 emission. Biomass energy will gradually replace coal and become one of the main energy sources. Biomass fuels include straw, wood shoots, bamboo wood processing waste, grain shell skin, fruit shells, sugar residue, oil residue, and so on.Compared with coal-fired boilers, biomass fuels are less expensive and significantly reduce operating costs.
Structure
Combustion process:
The fuel enters the furnace and burns on the grate. The flue gas from the production enters the convection tube bundle on both wings along the bottom of the boiler barrel through the smoke outlet on the middle partition wall, enters the threaded smoke pipe through the front smoke box, passes through the dust collector, and is pumped and discharged into the atmosphere through the chimney by the induced draft fan.
Technical characteristics
1. Easy Installation:
Generally, the boiler fast-assembly leave from factory, easy to transport and install at site, greatly shorten the period of installation, save the installation costs, to make the boiler go into production timely.
2. Reliable Operation:
The heating surface of boiler is reasonably settled, the water circulation fluent, to ensure that each heating furnace cool down timely, and ensure the boiler running safety.
3. Easy Maintenance:
The top of boiler barrel set manhole, serviceman can enter to inspect and maintain. The front smoke box easy to open, serviceman can easy and clear inspect, provide excellent conditions for correctly handle.
4. Full Combustion:
In the cooperation of secondary air, and reasonable design of furnace structure, the fuel can be fully burning, can remove the black smoke effectively.
5. High Efficiency Grate:
Boiler grate use matching biomass fuels grate, avoid the problem of air leakage, fuel leakage and uneven ventilation, and easy operation, have lots of advantages compared to traditional grate.
6. Easy to Remove Ash:
Set several remove ash hole on boiler, can remove ash timely and efficiently, to avoid ash deposition in boiler making the boiler running is affected or thermal efficiency is dropped etc. To ensure stability of boiler loading.
Main Parameters
Item | Unit | DZH1 | DZH2 | DZH3 | DZH4 | DZH6 |
Steam Capacity | t/h | 1 | 2 | 3 | 4 | 6 |
Working Pressure | MPa | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 |
Steam Temperature | ℃ | 193/204 | 193/204 | 193/204 | 193/204 | 193/204 |
Feed Water Temperature | ℃ | 20 | 20 | 20 | 20 | 20 |
Thermal Efficiency | / | ≥88 | ||||
Applicable Fuel | / | Wood, Straw, Rice Husk, Biomass Pellet | ||||
Fuel Consumption | Kg/h | 176.6 | 352.3 | 522.5 | 697 | 1044 |
Heating Area | m2 | 39.82 | 82 | 120.2 | 174.32 | 239 |
Grate Area | m2 | 1.97 | 2.7 | 4.1 | 5.43 | 6.7 |
Total Power | KW | 13.7 | 18 | 31.5 | 31.5 | 45 |
Water Capacity | m3 | 4.5 | 4.68 | 5.9 | 6.3 | 11 |
Remarks: The fuel consumption in above table are counted the low calorific value of biomass pellet as 17084 KJ/Kg (4085Kcal/Kg), if the low calorific value of actual biomass fuels is bigger than this, the corresponding fuel consumption will more save than above data in table.
Automatic control and fault protection features
Boiler steam pressure automatic regulation system: boiler steam pressure automatic regulation system control system into the state of work, to meet the necessary conditions of combustion: boiler steam pressure is higher than or equal to the set pressure limit, the control system output stop signal.Until the induced draft fan is stopped.
Water supply automatic control: when the system is working or normal, start the water pump, the water pump will work, the water level differential pressure transmitter will detect the water level signal and keep the water level of the drum stable.Ensure the quality of steam.The water level gauge shows the boiler water level.
Manual control: you can also manually control the water pump by touching the button manually on the control panel.
The main purpose of DZH series manual biomass steam boiler is to provide best quality of steam and power for industrial production. Widely used for chemical, pharmacy, packaging, paper, building materials, painting, textile, garment, printing and dyeing, food, beverage and wine industries, and places such as super market, hospital, university, hotel, restaurant and swimming pool etc.