Feed duct for straw firing

(19)

(11)

EP 0 490 804 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.11.1992 Bulletin 1992/47

(43)	Date of publication A2:
	17.06.1992 Bulletin 1992/25

(21)	Application number: 91610095.1

(22)	Date of filing: 09.12.1991

(51)	International Patent Classification (IPC)⁵: F23K 3/00

(84)	Designated Contracting States:
	BE DE GB NL SE

(30)

Priority:

07.12.1990 DK 2914/90

(71)	Applicant: BURMEISTER & WAIN ENERGI A/S
	DK-2830 VIRUM (DK)

(72)	Inventor:
	Svendsen, Jens Jorgen Bagge DK-3450 Allerod (DK)

(74)	Representative: Jessen, Ivar Bergishagen et al
	c/o Internationalt Patent-Bureau Hoeje Taastrup Boulevard 23 DK-2630 Taastrup DK-2630 Taastrup (DK)

(56)

References cited: :

(54)	Feed duct for straw firing

(57) The feed duct (1) for a straw firing furnace comprises a slide valve (10) with a valve member (13) for closing the duct, a sprinkler (21) in a wall of the duct upstream of the slide valve, a water supply pipe (22) for the sprinkler, and means (14) for control and activation of the opening and closing of the valve member. The sprinker (2) is positioned close to the valve member and adapted to sprinkle said valve member by water, and the bottom (23) of the housing (12) of the slide valve (10) is positioned lower than the bottom (9) of the feed duct and is provided with drain openings (24) for draining off water supplied through the sprinkler.

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