Research of polydisperse charge loading systems providing for the desired thermal conditions of the sintering process

Thermal regime of blended materials sintering results from the distribution with height of solid fuel and chemical components in the layer. It depends on the loading mode and fractions segregation across the charge prepared for sintering. Loading in its turn, depends on the loading device, the design of which will influence the forming of the layer of material, and consequently, the fractional composition of separate horizons of the charge stacked on pallets. In the work, a layer of polydisperse charge being loaded onto the pallets of the sinter machine and the layer forming process dynamics have been studied. The way to calculate the fractional composition of the charge distribution with the height of the layer has been put forward by the author and operating range of the tray parameters for the effective work of it has been offered as well. The design of the tray with an air gap and consisting of several parts makes it possible to change the angles of the inclination of the either surface which in its turn influences the rate of the moving particles as well as the width and height of the air gap, thereby providing for the control over the dynamics of the layer formation. Research has led to the conclusion that the use of such a tray is the most effective providing for the desired distribution of the material fractions and consequently for the distribution of solid fuel by horizons of the mixture prepared for sintering, which makes it possible to stabilize the thermal conditions of the sintering process and improve energy efficiency and productivity of the sintering process