Wood and Coal Gasification Boilers

ATMOS Kombi

Wood and Coal Gasification Boilers

The boilers are constructed for burning wood and coal on the principle of generator gasifying with the use of a gas exhaust ventilator, which withdraws the combustion gases from the boiler.

The boiler body is produced as a weldment of 3-8 mm steel sheets. The boiler consists of two chambers, one placed upon the other. The upper chamber makes up the fuel container, and the lower one, combustion chamber and ash collector. Between the two chambers, a new, rotating, patent protected grate is placed. The grate ensures perfect combustion of coal, wood, or a combination thereof, as well as simple cleaning.

Advantages of Wood and Coal Gasification Boilers

  • Burning coal and wood separately, we recommend together
  • Revolving furnace grate - easy for ash removal
  • Fan controlled - pressure(S)
  • Simple handling and cleaning
  • Large fuel container
  • Revolving furnace grate - easy for ash removal
  • The boiler contains no tubing - simpler cleaning (Except C50S)
  • The secondary air is pre-heated to high temperatures
  • Small size and low weight
  • High quality

Nastavení roštovacích segmentů
The settings of the grate segments is displayed on the picture, and the same for use of coal or wood.

The secondary air supply channel and the flat part of gasifying grate must always point downwards.

PATENTS PROTECTED!

View of top feeding chamber
View of top feeding chamber

View of bottom feeding chamber
View of bottom feeding chamber

 

Exhaust vent
Exhaust vent
minimises smoke during feeding and operation of the boiler

Overheating protection cooling loop
Overheating protection cooling loop

Installation

ATMOS boilers must be connected via the LADDOMAT 21 or ESBE thermoregulation valve to achieve and keeping the minimum temperature of water returning to boiler at 65°C. The temperature of water exiting the boiler must be permanently kept between 80 - 90°C. The default configuration of all boilers includes a cooling circuit to prevent overheating. We recommend installing boilers with accumulation tanks.

Boiler regulation

Electrical - mechanical - Power is controlled with a safety valve operated with the draught regulator, FR 124 type, which automatically opens or closes the safety valve according to a set output temperature of water (80 - 90°C). When setting the power regulator, much attention should be paid because the regulator has another important function other than power regulation - it also secures the boiler against overheating. A controlling thermostat located on the boiler panel regulates the fan according to a set temperature (75 - 85°C). A temperature lower by 5°C should be set on the controlling thermostat rather than on the FR 124 draught regulator. Boiler use: C 18S, C 20S, C 30S, C 40S, C 50S.

Each boiler can be fitted with ATMOS ACD 01 equithermal controller. It takes a control of the heating system based on datas collected from external sensors and on time. It can control suction fan of the boiler as well.

Panel with standard regulation

Panel with standard regulation

Panel composition:
Main off switch, safety thermostat, thermometer, regulator thermostat and combustion thermostat

Electro-mechanical regulation is an optimum solution for easy management of the operation of the boiler (ventilator).
The design of the panel with standard regulation is a basic design for all produced boilers.

Each boiler can be equipped at the customer's location with ATMOS ACD 01 electronic regulation for management of the entire heating system, depending on the outside and room temperatures. This regulation can also be managed by the boiler itself with a ventilator with many other functions.

Size of feeding chamber
Size of feeding chamber

burning of flame
burning of flame
in the bottom combustion chamber in spherical space

ATMOS Combi
ATMOS Combi
C 18 S, AC 25 S
ATMOS Combi
ATMOS Combi
C 20 S, C 30 S, C 40 S, C 50 S,
AC 35 S, AC 45 S

C20S

LEGEND OF THE BOILER DIAGRAM - C 18S, C 20S, C 30S, C 40S, C 50S

1. Boiler drum 14. Fireproof and heat-resisting fitting - GS - rear face of round space
2. Filling door 15. Cleaning cover
3. Ash pan door 16. Furnace grate level
4. Ventilator - pressure (S) 17. Firing safety valve pull rod
5. Fireproof and heat-resisting fitting - rear block 18. Thermometer
6. Control panel 19. Furnace curtain - front
7. Safety thermostat 20. Switch
8. Regulating safety valve 22. Power regulator - Honeywell FR124
9. Grate bar 23. Fireproof and heat-resisting fitting - front block
10. Fireproof and heat-resisting fitting - round space L + P 24. Ventilator thermostat
11. Furnace grate tube 25. Door panel - Sibral
12. Fireproof and heat-resisting fitting - half-moon 26. Door insulating cord - cord 18x18
13. Firing safety valve 27. Waste gas thermostat
    28. Cooling loop to prevent overheating

 

C 18S C 20S C 30S C 40S C 50S
A 1180 1420 1420 1420 1420
B 770 770 870 970 1120
C 590 590 590 590 590
D 872 1118 1118 1118 1118
E 150 150 150 150 150
F 65 70 70 70 70
G 200 200 200 200 102
H 930 1177 1177 1177 1177
CH 220 220 220 220 220
I 190 190 190 190 220
J 6/4" 6/4" 6/4" 2" 2"

 


TECHNICAL DATA
BOILER TYPE Kombi
C 18S C 20S C 30S C 40S C 50S
Operating interval (kW) 14 - 20 17 - 25 22 - 32 28 - 40 35 - 48
Req. chimney Exhausted (Pa) 22 25 25 28 28
Boiler weight (kg) 298 344 394 430 504
Water volume (l) 45 64 64 77 95
Fuel container volume (dm3) 66 100 125 150 150
El. power consumption (W) 50 50 50 50 50
Operating voltage (V/Hz) 230/50
Required fuel Brown coal of walnut size with specific energy 17-20 MJ/kg
Dry wood with specific energy 15-18 MJ/kg, diameter 70-90 mm,
12 - 20% moisture level
Max. length of wood (mm) 330 330 430 530 530
Min. operating temperature of return water 65 °C
Efficiency within the power output interval 81 - 85% 81 - 84% 81 - 84% 86 - 87% 86 - 87%
Boiler class 3

Black coal boilers ATMOS AC25S

Black coal boilers ATMOS AC25S
Black coal boilers ATMOS AC25S

The boilers are constructed to burn NUT 1 black coal and wood. On a base of gasification process with a suction fan (S) to suck waste gasses into the chimney.

The boiler body is produced as a weldment of 3-8 mm steel sheets. The boiler consists of two chambers, one placed upon the other. The upper chamber makes up the fuel container, and the lower one, combustion chamber and ash collector. Between the two chambers, a new, rotating, patent protected grate is placed. The grate ensures perfect combustion of coal, wood, or a combination thereof, as well as simple cleaning. The primary and secondary air are pre-heated to a very high temperature for achieveing high efficiency and good quality burning.

The recommneded fuel is NUT 1 black coal. As domestic fuel, logs of wood (length 330mm), brown and black coal of a larger size (NUB), or brown-coal and wooden briquettes can be used.

Advantages of Black coal boilers ATMOS AC25Sf

  • Burning coal and wood separately, we recommend together
  • Large fuel container
  • Simple handling and cleaning
  • Coolining loop protecting the boiler against overheating
  • Revolving furnace grate - easy for ash removal
  • The boiler contains no tubing - simple cleaning
  • The secondary air is pre-heated to high temperatures
  • Small size and low weight
  • Fan controlled - pressure(S)
  • Automatic switching off the boiler after burning down

Boiler Regulation

Electrical - mechanical - Power is controlled with a safety valve operated with the draught regulator, FR 124 type, which automatically opens or closes the safety valve according to a set output temperature of water (80 - 90°C). When setting the power regulator, much attention should be paid because the regulator has another important function other than power regulation - it also secures the boiler against overheating. A controlling thermostat located on the boiler panel regulates the fan according to a set temperature (80 - 85°C). A temperature lower by 5°C should be set on the controlling thermostat rather than on the FR 124 draught regulator. Boilers contain waste gas thermostat which serves to stop the suction fan when the boiler burns down. The boilers work for 70% without the fan on.

Each boiler can be fitted with ATMOS ACD 01 equithermal controller. It takes a control of the heating system based on datas collected from external sensors and on time. It can control suction fan of the boiler as well.

AC25S

Legend – AC25S

Dimensions AC25S AC35S AC45S
A 1180 1420
1420
B 770 770
870
C 590 590 590
D 872 1118 1118
E 152 152 152
F 65 70 70
G 200 200 200
H 930 1177 1177
CH 220 220 220
I 190 190 190
J 6/4" 6/4" 6/4"

 

TECHNICAL SPECIFICATIONS
ATMOS KOMBI TYPE
  AC25S AC35S AC45S
Energy output (black coal) kW 20-26 25 - 35 35 - 45
Energy output (wood) kW 15-20 20-25 25-32
Weight of boiler kg 297 353 397
Volume of water in boiler l 45 64 70
Dumping hopper capacity dm3 66 100 125
Electrical input W 50 50 50
Electric network V/Hz 230/50 230/50 230/50
Specified fuel   Lignite briquettes with heating capacity 19-23MJ.kg-1 Black coal briquettes with heating capacity 17-30MJ.kg-1
Domestic fuel   Dry wood ø 50-120 mm, moisture 12-20% Dry wood ø 50-120 mm, moisture 12-20%
Max. length of wood mm 330 330 430
Min. temperature of returned water °C 65 65 65
Efficiency % 84 85< 85,2
Quality of combustion - CO mg/m3 <500 <500 <500
Boiler class - 3 3 3

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