Patent ID: 6485295
Filing Date: 2002-11-26
Classification: C04B,F27B,Y02P

Abstract:
A calcinating equipment for precalcination of powdered material before its burning in a sintering equipment, namely cement raw material farina before its burning in a rotary kiln, composed from calcinating chamber, which is provided with means for input of powdered material and input of fuel with a simultaneous input of burning air and which is interconnected with a mixing channel, which is arranged between the input chamber of rotary kiln and the last cyclone of cyclone heat exchanger which is arranged before the rotary kiln, characterized in that the calcinating chamber (1) is connected with the mixing channel (2) both through a removal tube (120), which is arranged in its lower part (12), and through at least one interconnecting tube (110), which is led out from its upper part (11), whereas an air tube (6) for input of burning air is connected to a middle-working part (10) of calcinating chamber (1), whereas the working part (10) and/or the air tube (6) are further equipped with at least one input (4) of powdered material and with a fuel input (5).