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Goliath Biomass Boiler

External Combustion Biomass Boiler

Models: 55, 110, 180, 300, 600, 1000, 1200, 2000

The Goliath boiler is a hot water boiler equipped with a dual pass heat exchanger, fired with solid fuel loaded directly into the boiler or wood chips delivered automatically from the hopper to the external gasification chamber. Super hot exhaust gases are transferred through the boiler’s heat exchangers. The Goliath boiler is built from heavy 1/4″ steel plate and the heat exchangers are 100% surrounded by the water jacket. There is a set of water cooled grates that enable the burning coal if needed. The furnace chamber is accessible through the feeding door and the lower door above the grates; access is also possible through sidewall openings which also are inlets for the AZSD combustion system. The Goliath boilers construction allows for a wide range of combustion air quantity adjustments. The Goliath boiler is fitted with an ash door featuring adjustable flaps, which adjusts the amount of air coming under the boiler’s grates, air flow is also controlled through a tilted grid door built in boiler’s front wall. The boiler works on the rule of natural air draft generated by a flue. The larger Goliath boiler units are equipped with a variable speed controlled draft blower.

 

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Automated Wastewood Combustion Set – AZSD – is a modern device for burning of wood chips, shavings, sawdust  of 1 1/2″ granulation and humidity 30 – 50% for AZSD-50 and AZSD- 180 and 40% – 60% for AZSD-1000 to AZSD-2000 located outside of the boiler.  Such configuration allows precision control gasification process and  proper combustion temperatures resulting in low emissions. In the case of agri waste and contaminated fuels moveable grates (self cleaning) must be used to prevent build up of post combustion waste. The devices can be coupled with a properly matched water – or steam – boiler for various heating applications including;  kilns, workshops, production facilities, greenhouses,  etc. Available models: rated at 50 KW (171 K BTU), 100 KW (342 K BTU), 180 KW (615 K BTU), 250 KW (900 K BTU), 500 KW (1.71 MM BTU), 1000 KW (3.42 MM BTU), and 2000 KW (6.84 MM BTU) of thermal power. Combustion process is controlled automatically and fuel is delivered by auger from intermediate hopper, like on the above picture or bigger storage places equipped with live floor or silo. Each device is equipped with:

  • Controller: Burning process is controlled with microprocessor setting is done by manually by programming feeding and pause times for main and auxiliary (idle) burning. Proper combustion process depends on wood granulation, moisture content and wood heat value (density) and as well on heat demand. Another important element of clean combustion is air, which is mechanically adjusted by operator.
  • Temperature sensor: Water-temperature sensor is placed at the boiler’s outlet feeding microprocessor.When the set temperature is reached, the boiler switch to idle and goes to auxiliary settings to sustain the fire without overheating.
  • Fire suppression device: AZSD unit is equipped with burn back prevention device, which is installed on the auger tunnel.  This device is activated by elevated temperature and floods auger tunnel with water from suspended container.
  • Fuel hopper: The feeder is equipped with an internal agitator to prevent clogging or bridging and metering auger to deliver proper amount of fuel to combustion unit (burner).   On the end of the auger in the burner, there is a mechanical sensor preventing from the over feeding of the combustion unit.

 

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1. Hopper

2. Fire Suppression Water tank

3. Rotary Valve Jam Sensor

4. Temperature Sensor

5. Rotary Valve

6. Lower Feeding Auger

7. Air Combustion Blower

8. Access Hatch for Ash Removal

9. Primary Air Path

10. Side Access Hatch for Ash Removal

11. Grates

12. Fuel Overload Sensor

13. Secondary Air Inlets

14. Hopper Auger

15. Motor
Moveable grate system AZSD-RR to burn special fuels (agri waste, contaminated fuel and high ash content)Moveable grate Schematic

PDF DOWNLOADS:

Water Boiler Type KWH  –714KB, 12 pages, includes Schematics and Drawings

Automated Wastewood Combustion Set Type AZSD –266KB, 7 pages, includes Schematics and Drawings

AZSD 50 and 100 Manual –2.8MB, 35 pages

AZSD 180 and 250 Manual –3.5MB, 39 pages

Additional Listing of Goliath CAD Drawings and Schematics


TECHNICAL SPECIFICATIONS:

Technical Description
Unit
Boiler
55
110
180
300
600
1000
1200
2000
Coupled with AZSD
AZSD-50
AZSD-100
AZSD-180
AZSD-250
AZSD-500
AZSD-1000
AZSD-1000
2xAZSD-1000
Nominal thermal power with AZSD
kW
60
90
190
300
550
1000
1200
2000
Basic Fuel Burned in AZSD
Wood waste of granulation to 1-1/2″ and humidity of 30-50%
Thermal power regulation range
%
30 – 100
Heated Surface
m 2
5.5
11.5
21
25
49
78
98
174
Admissible static pressure
MPa
0.3
Max outlet water temperature
°C
95
Requested draft behind boiler
Pa
>23
>26
>29
>35
>40
>56
>59
>65
Average Exhaust Gas temp at flue
°C
200
200
200
220
220
240
240
240
Basic fuel consumption – efficiency
kg/h
24.1
40.57
55
118.15
156
375.6
453.6
783.7
Thermal efficiency with AZSD
%
≥82.7
≥83.7
≥83.7
≥86.9
≥86.9
≥86.9
≥86.9
≥86.9
Total weight with insulation
kg
600
1150
1750
2150
3100
6250
6800
14200
Water Capacity
l
180
350
800
1400
2100
4300
4900
7800

 

Automated Woodwaste Combustion AZSD-100AZSD-100 combustion unit

Automated Woodwaste Combustion AZSD-500
AZSD-500 combustion unit

AZSD-50 combustion unit

AZSD-50 combustion unit

KWH-55 boiler
KWH-55 BOILER

KWH-110 boiler
KWH-110 BOILER

KWH-180 boiler
KWH-180 BOILER

VIDEOS:

Complete Goliath Boiler System:

Goliath Biomass Boiler System Animation: