| 摘要 |
In connection with heat treatments of particulate materials, primarily organic material such as grains and seeds, the particles of the material are caused to move in a floating or falling state in a treatment area (15). While floating in the treatment area, the particles are heat treated or thermally processed by emitting into the treatment area a heat flux which includes an increased proportion of radiant heat and thereby provides an intensive heating of the individual particles. A heater, in particular for use as heat source comprises at least one burner (16) which is mounted in a heater mantle (10) defining a flame chamber (12) and a heat discharge opening (14). The burner (16) is directed towards a mantle wall portion (18) which is located opposite to the heat discharge opening (14), and the inner surface of the mantle wall portion (18) consists of or is lined with a fireproof material which has the ability to glow and thereby provide heat radiation through the discharge opening (14). |
