Abstract: A heat exchanger including a separating chamber in the form of a prism having a substantially horizontal center axis and axially elongated. The separating chamber having a collecting chamber disposed beneath it has an inlet duct opening in the separating chamber and connected to one wall of the separating chamber, and an outlet duct opening in the separating chamber and connected to a wall of the separating chamber. The outlet duct may be connected to the wall to which the inlet duct is connected or to another wall parallel to the wall to which the inlet duct is connected.

Abstract: Rotary drum type heat treatment apparatus having a rotary drum rotatable about a longitudinal axis. The drum has an outlet end and the apparatus includes a cooling section having a movable grate with one end disposed beneath the outlet end of the rotary drum for receiving material from the drum. The drum is provided at the outlet end with a plurality of circumferentially spaced distribution members, each of which has at least one side surface extending longitudinally outwardly beyond the outlet end and inclined with respect to a radial line of the drum for engagement with material being discharged through the outlet end to deflect the same.