ANALYSIS OF THE PELLET PRODUCTION TECHNOLOGY, INCLUDING FORCED NUCLEATION, BASED ON THE CALCULATION OF THE PRESSURE OF THE AIR CHARGE JET

Abstract

The technology for producing raw pellets on a plate pelletizer using forced nucleation technology includes two main stages: forming the nuclei by heat-and-power spraying of wet charge onto the garnishing of the empty zone of the container and forming the shell of the pellets by finishing the nuclei in the working area of the pelletizer. To do this, the loaded charge with a flow rate of Gt (unit capacity) is divided into two streams: a charge flow with a flow rate of Gs, necessary for forced nucleation, and a charge flow with a flow rate of Gob, directed to the nuclei to form the shell of the pellets. To obtain the embryos, a wet charge with a flow rate of Gs, kg/s is loaded into an inkjet device (CA) with a diameter of dSA. In the CA housing, it is accelerated by compressed air heated to a temperature of tb, °C, which is supplied at a pressure of Pb, kPa, through an air nozzle located on the CA axis.