Apparatus for heating aggregate, recycled asphalt and the like

摘要: A drum-type drier and/or mixer in which particulate material such as aggregate or recycled asphalt is introduced into the forward end of drum. burner at rear drum directs its flame forwardly through an elongated firing tube extends from toward thereof. The hot gases discharged strike a baffle, are deflected annular chamber between and then flow rearwardly to exhaust stack. also advanced and, during advance, heated (1) indirectly by flowing (2) directly chamber.