Influence of Physical and Chemical Sintering Processes on the Quality of a Sinter

Abstract

Large reserves of Baikal siderite ores require the development and implementation of methods for using them in metallurgical processing, both in pure form and in a mixture with other ores (for example, magnetite, brown iron ore). One of the methods of using a charge consisting of a mixture of siderite ore and brown iron ore in the production of a sinter is considered. In order to optimize the sintering process, the mechanism of the main reactions occurring in the sintering layer was studied. Knowing the thermal effects of these reactions, it is possible to determine the amount of heat required for the sintering process and obtain data on the consumption of solid fuel in the production of an agglomerate with the required properties. Results of studies using an experimental setup are presented. Influence of ore size, solid fuel consumption, layer height, and the ratio of siderite ore and brown iron ore contents in the charge was established. To obtain the necessary information with a minimum number of experiments performed, the method of planning experiments was used. The work results have a practical orientation, as they indicate the possibility of using siderite ores in metallurgical enterprises.