Low Pressure Easy Install Solid Fuel Firewood Steam Boilers For
Heating System
DZH coal/ biomass smal pellet boiler realizes zero pollution with the use of special dust collector
solution (water film dust collector; bag type static electricity
dust collector; double towers desulfurization, etc.). Because its
steady performance and low fuel consumption, make it is popular in
market
1.Model:DZH
2.Steam Capacity: 500kg/hr-4ton/hr
3.Design pressure:0.7Mpa(7bar), 1.0Mpa(10bar),
1.25Mpa(13bar),1.6Mpa(16bar)
4.Stem temperature: 184 °c,194°c, 204°c
5.Design fuel: Biomass pellet,wood sawdust, bamboo chip, wood block, straw
6.Structure: horizontal water-fire tube, single drum
7.Type: DZH manual coal feed type coal fried boiler
8.Application: medicine, chemical, light industry, textile, building material,
cultivation, food and beverage, plastic foam, printing, dyeing and
washing, rubber processing, paper products,wood processing, hotel,
clothing and leather manufacturer etc.
Structure
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. High Quality Control: In manufacturing processes, we has adopting steel strength test,
automatic steel cutting/ plate rolling/ welding, 100% x-ray welding check, magnetic particle check c-scan ultrasonography
check, fluorescent penetrating check, hydraulic (water) pressure
test, boiler thermal efficiency test,etc, to make sure all finished
products is qualified.
2. Simple Structure: DZH boiler adopting threaded fire tubes, single water drum,
horizontal shell type boiler with 3 fire-passes structure,
water-tube fire-tube mix design. Most important, the combustion
fixed chain grate can also suit any kind of biomass. The small
flakes chain grate can reduce fuel leakage, and also let the broken
chain grate flakes is convenience of replace.
3. Better Adaptability on Fuels: Comparing with DZL boiler, DZH boiler has better adaptability on
fuels, it can fire coal, rice husk, nut shell, sawdust, waste wood
pieces, also can fire wood logs, straws. But, DZH boiler can only
support manual fuel feeding, and manual ash remove.
4. Safe Operation: DZH series is equipped with automatic water-level control,
automatic pressure control, automatic interlock chain stop
protection, free settable working.
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.
Picture of biomass steam boiler
1000kg steam boiler, 1 ton wood chip biomass steam boiler industry
used packing and loading:
1.full set 1ton capacity biomass wood fired team boiler can load in
one 40ft open top container due to over-height
2.fuell set 2 ton capacity industrial biomass pellet steam boiler
can load in one 40ft flat rack due to over-width
3.fuell set 4 ton capacity industrial steam boiler can load in one
40ft flat rack also due to over-width
