FSB

Flat moving grate combustion 180 to 2,600 kW

The flat mov­ing grate is espe­cial­ly suit­able for the com­bus­tion of wood fuels with a water con­tent of up to 55 % and an ash con­tent of 6 %. Sig­nif­i­cant advan­tages are on the one hand the usabil­i­ty of dif­fer­ent fuels and on the oth­er hand a low dust con­tent in the exhaust gas, due to the sta­t­ic fuel bed.

MAWERA-Flachschubrostfeuerung-FSB

State-of-the-art combustion technology

Fuels:

For­est and sawmill residues
Residues from wood pro­cess­ing
Bark
Wood from land­scape cul­ti­va­tion

Flex­i­ble use of var­i­ous wood fuels as well as a low dust con­tent in the exhaust gas due to the sta­t­ic fuel bed char­ac­ter­ize the FSB.

Flat mov­ing grate com­bus­tion

The low-NOx reduc­tion tech­nol­o­gy is gen­er­al­ly used in our flat-mov­ing grate com­bus­tion sys­tems. The com­bus­tion cham­ber is designed with a pri­ma­ry-side air stag­ing to reduce NOx emis­sions. The reg­u­la­tion of the pri­ma­ry air sup­ply in com­bi­na­tion with the exhaust gas recir­cu­la­tion ensure a sub­sto­i­chio­met­ric com­bus­tion in the reduc­tion zone. The sup­ply of sec­ondary air takes place in the oxi­da­tion zone in the fire­clayed part of the com­bus­tion cham­ber. This air flow ensures high tur­bu­lence and mix­ing with the exhaust gas and thus for opti­mal oxi­da­tion (CO burnout) of the com­bus­tion gas­es. These mea­sures achieve the best emis­sion lev­els.

Low­est life cycle costs

We attach great impor­tance to dura­bil­i­ty and a long ser­vice life of the sys­tem. That‘s why we rely on a robust sys­tem tech­nol­o­gy. Sol­id steel con­struc­tion and the use of high-qual­i­ty lin­ing mate­r­i­al guar­an­tee reli­able plant avail­abil­i­ty over many years. Low­est pow­er con­sump­tion in all load con­di­tions of the plant is guar­an­teed by fre­quen­cy-con­trolled screws, grate dri­ves and exhaust gas recir­cu­la­tion.

Design and accessories

Type Pow­er range*
FSB 180 45 to 180 kW
FSB 220 55 to 220 kW
FSB 280 70 to 280 kW
FSB 350 87 to 350 kW
FSB 440 110 to 440 kW
FSB 550 137 to 550 kW
FSB 700 175 to 700 kW
FSB 850 212 to 850 kW
FSB 1100 275 to 1,100 kW
FSB 1400 350 to 1,400 kW
FSB 1700 425 to 1,700 kW
FSB 2100 525 to 2,100 kW
FSB 2600 650 to 2,600 kW

*Depend­ing on fuel and water con­tent

MAWERA-Flachschubrostfeuerung-FSB

TÜV
The FSB is test­ed and cer­ti­fied accord­ing to the Machin­ery Direc­tive and DIN EN 303–5
and is sub­ject to con­tin­u­ous mon­i­tor­ing by TÜV.

Design and performance

Mod­el 180 220 280 350 440 550 700 850 1100 1400 1700 2100 2600
Rat­ed heat­ing out­put 180 220 280 350 440 550 700 850 1,100 1,400 1,700 2,100 2,600 kW
Dimen­sions SE
Length 3,226 3,226 3,824 3,824 3,816 3,813 3,813 4,813 4,902 5,321 5,411 5,625 5,625 mm
Width 1,237 1.237 1,337 1,337 1,437 1,535 1,687 1,709 1,809 1,850 1,970 2,200 2,345 mm
Height 2,679 2,679 2,954 2,954 3,054 3,152 3,280 4,057 4,157 4,460 4,576 5,190 5,340 mm
Dimen­sions ESH
Length 3,226 3,226 3,824 3,824 3,816 3,813 3,813 4,813 4,902 5,383 5,411 5,915 5,915 mm
Width 1,237 1,237 1,337 1,337 1,437 1,535 1,687 1,709 1,809 1,850 1,970 2,200 2,345 mm
Height 2,679 2,679 2,954 2,954 3,054 3,152 3,280 4,057 4,157 4,460 4,576 5,190 5,340 mm
Max. oper­at­ing pres­sure 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* 6 or 10* bar (ü)

*on request
SE =Screw feed­er
ESH = Feed neck

FSB

Flat mov­ing grate com­bus­tion 180 bis 2,600 kW

Design and accessories

MAWERA-FSB-EN

Take advantage of these benefits:

  • Ful­ly auto­mat­ic bio­mass com­bus­tion sys­tem with flat mov­ing grate
  • Fuel water con­tent: 6 to 55%
  • Staged com­bus­tion (low-NOx tech­nol­o­gy)
  • Low­er pol­lu­tant emis­sions thanks to rest­ing fire bed
  • High effi­cien­cy (up to 92%)
  • 3‑pass flame tube-flue tube boil­er with flue gas tem­per­a­tures below 190 °C at full load
  • High­ly insu­lat­ed, ful­ly ceram­ic-lined com­bus­tion cham­ber design and opti­mal­ly designed com­bus­tion air sup­ply guar­an­tee com­plete com­bus­tion of all fuels
  • Safe­ty heat exchang­er inte­grat­ed into boil­er
  • Slid­ing load reg­u­la­tion from 25 to 100% of the rat­ed heat out­put in com­pli­ance with the emis­sions val­ues (fuel-depen­dent)

Optional accessories:

  • Pneu­mat­ic boil­er clean­ing sys­tem (con­sid­er­ably increas­es the time between clean­ing inter­vals)
  • Auto­mat­ic igni­tion sys­tem (auto­mat­ic igni­tion for fuels with a water con­tent of up to 35%)
  • Flue gas recir­cu­la­tion »under« the grate runs behind the lin­ing. (Increas­es effi­cien­cy and reduces nitro­gen oxides, plus cool­ing of the grate)
  • Remote main­te­nance and visu­al­i­sa­tion sys­tems (full sys­tem access from a PC, tablet or mobile phone)
  • Rais­ing of the flue gas tem­per­a­ture (to avoid con­den­sa­tion in the flue gas path and in down­stream com­po­nents)
  • Nitro­gen oxide reduc­tion sys­tem (for reduc­ing of NOx emis­sions with the SNCR method)
  • Con­tin­u­ous emis­sions mea­sure­ment

Ques­tions?

FSB

Flat mov­ing grate com­bus­tion 180 — 2,600 kW

Example:
Large nursery (heating of greenhouses)

Fir­ing sys­tem: FSB
Out­put: 1,700 kW
Fuel: Wood chips M45

MAWERA-FSB-anlage
  1. Stor­age bunker with mov­ing floor
  2. Fuel trans­port
  3. Com­bus­tion: FSB
  4. Ash removal of the com­bus­tion cham­ber in 800-l-con­tain­er
  5. Flue gas clean­ing: elec­tro­sta­t­ic pre­cip­i­ta­tor with inte­grat­ed mul­ti­cy­clone dust sep­a­ra­tor
  6. Flue tube con­nec­tion
  7. Recir­cu­la­tion
  8. Pneu­mat­ic boil­er clean­ing sys­tem

Application areas FSB:

Local and dis­trict heat­ing

Munic­i­pal and pub­lic prop­er­ty

Hotels and hos­pi­tal­i­ty indus­try

Plant nurs­eries

Ques­tions?