| 摘要 |
This invention relates to an apparatus for combustion of biofuels, preferably pellets, comprising a container for the fuel, which is connected with a combustion furnace via a feeder device for the fuel, a pipe part being connected to the combustion furnace and projecting out from this one so that when coupling together the apparatus with a boiler the pipe part projects into the boiler, and an ignition pipe or the like being positioned in that way in the apparatus that it is possible to ignite the fuel in the combustion furnace from the outside, whereafter the combustion is maintained by supply of fuel and combustion air. According to the invention the apparatus is characterized by the fact that the feeder means is designed in that way that the fuel by its own weight is removed from the container (1) to the combustion furnace (2), and that the feeder means comprises two straight, concentric pipes (5, 6), the lower part of the outer pipe (5) being connected to the roof portion of the combustion furnace and surrounds a lower hole (8) there, whereas the upper part of the pipe (5) is connected to the lower part of the container and surrounds an upper hole (9) there, and the inner pipe (6) being intended to be able to go through at least the mentioned lower hole (8) and being displaceably arranged in relation to the outer pipe, so that the size of the fuel stack of the combustion furnace can be varied by the displacement of the inner pipe. |
