(19)
(11)EP 2 295 856 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
12.11.2014 Bulletin 2014/46

(43)Date of publication A2:
16.03.2011 Bulletin 2011/11

(21)Application number: 10397513.2

(22)Date of filing:  19.08.2010
(51)Int. Cl.: 
F23B 40/06  (2006.01)
F23J 1/00  (2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
BA ME RS

(30)Priority: 20.08.2009 FI 20095856

(71)Applicant: Mustakoski, Jorma
39960 Sarvela (FI)

(72)Inventor:
  • Mustakoski, Jorma
    39960 Sarvela (FI)

(74)Representative: Langenskiöld, Tord Karl Walter 
Oy Jalo Ant-Wuorinen Ab Iso-Roobertinkatu 4-6
00120 Helsinki
00120 Helsinki (FI)

  


(54)Combustion facility for solid biofuels


(57) The invention relates to a combustion facility for solid biofuels, comprising a vessel (1) having a combustion chamber (2) and a flat-surfaced stationary metal grate (3), as well as a fuel silo (4) mounted adjacent to the vessel (1) to receive biofuels, and feeding means (5,6) for feeding fuel. The Invention is characterized in that the feeding means (5,6) comprise a water-cooled feeding shaft (5) extending from underneath the fuel silo (4) to the combustion chamber (2) in the direction of the metal grate (3) and a reciprocating feeding piston (6) mounted in this feeding shaft (5) for pushing the fuel fallen down from the fuel silo (4) to the feeding shaft (5) as a continuous gas tight plug (7) onto the metal grate (3) of the vessel (1), that in the grate (3) as well as in the front (8) and side walls (9) of the combustion chamber (2) air nozzles (10, 11, 12) are arranged, directed to the combustion zone of the fuel, and that at the final end of the fuel lying on the grate (3) an ash removal compartment (14) covered with an upper damper (13) is arranged, said ash removal compartment being provided with additional air nozzles (15) to complete the combustion of the ung-burned ingredients, the bottom of which being formed by a water-cooled lower damper (16) for cooling the ash charge before being dropped down to a wagon or a container provided underneath.