Rotary burner for solid fuel

Details Rotary burner for solid fuel Rotary burner for solid fuel

1999-08-30

2001-03-20

Ferensic, Denise L. (Department: 3749)

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

C432S206000, C110S246000

Reexamination Certificate

active

06203315

ABSTRACT:

TECHNICAL FIELD
The invention relates to a device for the combustion of solid fuel in the form of granules, pellets, chips or other fragmented or finely divided form, comprising a rotary reactor drum, which forms the main combustion chamber and has a rear end wall and at the opposite end an outlet for combustion gases to a boiler part for heat transfer to water-cooled surfaces, for example, or other heat-absorbing means, an inlet for combustion air to the main combustion chamber, means for feeding fuel through the rear end wall of the reactor drum and means for rotating the reactor drum around its centre axis.
BACKGROUND TO THE INVENTION
Combustion devices of the type specified above have been known for a long time and a number of different designs have been suggested over the years. The Swedish patent specification 450734 shows a combustion device which is used to a large extent. The Swedish patent application 9602495-5, which has not yet been published, shows another, improved combustion device with a double-walled reactor drum, in which the space between the inner and outer reactor walls is divided into longitudinal channels, means being disposed for leading combustion air into at least some of these channels and the inner reactor drum wall being provided with through holes for the introduction of combustion air from the channels into the combustion chamber in the reactor drum.
BRIEF DESCRIPTION OF THE INVENTION
The object of the invention is to provide a combustion device of the type specified in the preamble, which can generate more power than other combustion devices of the same size and equipped in the same manner. These and other aims can be achieved by what is specified in the characterizing part of the appending claim
1
.
Further features and aspects of the invention are apparent from the sub-claims and from the following description of a preferred embodiment.


REFERENCES:
patent: 2500553 (1950-03-01), Lykken
patent: 3436061 (1969-04-01), Zinn
patent: 5662052 (1997-09-01), McIntosh et al.

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