Patent ID: 9121640
Filing Date: 2015-09-01
Classification: C04B,F27B,F27D

Abstract:
1. A system for thermally processing lumpy solid material comprising: a preheating device, a furnace and a separation or classification device arranged between said preheating device and said furnace, the separation or classification device having a coarse material outlet and a fine material outlet, wherein the coarse material outlet is connected to the furnace, the system being characterised in that the furnace and the preheating device are connected to each other by means of a gas/solid material line which is arranged so as to be inclined relative to a vertical axis and communicates with the furnace at a furnace side end and communicates with the preheating device at a preheater side end, wherein furnace exhaust gases are introduced at the furnace side end of the gas/solid material line and flow to the preheating device, and solid material preheated in said preheating device is supplied at the preheater side end, and the separation or classification device is connected to a bypass line that branches off from the gas/solid material line so that at least a partial amount of the solid material preheated in said preheating device and supplied at said preheater side end is branched off via the bypass line by means of gravitational force and is supplied to the separation or classification device.