| 摘要 |
PCT No. PCT/SE82/00332 Sec. 371 Date Jun. 14, 1983 Sec. 102(e) Date Jun. 14, 1983 PCT Filed Oct. 13, 1982 PCT Pub. No. WO83/01497 PCT Pub. Date Apr. 28, 1983.A burner head for combusting solid fuels such as straw, peat, chips, coal etc., comprising a charging opening (11) for the fuel and a discharge opening (15) for flue gases. According to the invention the burner head (1) is characterized in that it comprises two pipes (6,7) located concentrically to each other, where the gap (8) between the pipes is intended to communicate with a supply source for combustion air and communicates with the interior of the inner pipe (7) via apertures in the wall thereof. A plurality of apertures (12,13) are located a distance from the charging opening (11) to form a first combustion zone, and a plurality of apertures (14) are located a distance from said firstmentioned apertures (12,13) and closer to the discharge opening (15) to form a second combustion zone. In the first combustion zone the fuel is intended to be combusted incompletely. The gases produced thereby are intended to be combusted completely in the second combustion zone. According to a preferred embodiment additional apertures (16,17) are located close to the discharge opening (15). |
