Increase in productivity of sintering machine and sinter quality by improvement of ore preparation for sintering
Journal Title: Metallurgical and Mining Industry - Year 2017, Vol 9, Issue 1
Abstract
In the paper, economic and technology factors proving need of use of sintering ore as a ferriferous component of sintering furnace charge are considered. On the basis of analysis of material structure of ferriferous, fuel and flux components of sintering furnace charge, it is shown that the easiest way of improvement of composition of furnace charge is improvement of particle size distribution of sintering ore, which content in furnace charge reaches 20%. On the basis of influence of the analysis of granulometric characteristic of sintering ore fed to furnace charge composition for sinter production on sintering machine operation and indicators of sinter use, the technology of sintering ore preparation is suggested. This technology is based on truncation of the initial granulometric characteristic of sintering ore "from below" (i.e. removal of a part of fine fractions from initial composition) and "from above" (i.e. removal of "coarse" part from initial composition with subsequent recrushing and return of crushed product to furnace charge).
Authors and Affiliations
Aleksandr Uchitel, Natalia Dats
Improvement in quality and service life of concrete steel constructions by means of research of interaction of concrete form and cement concrete
In this article we consider issues associated with improvement in quality and service life of concrete steel constructions. With aim to ease separation of concrete from concrete form or form, and also to protect metal mo...
Production of billets of die-rolled section when vibratory drawing
The results of the analysis of energy-power parameters of die-rolled sections production by vibratory drawing considering kinematic parameters of process are presented. Technological process and vibratory drawing device...
Control of the solidification rate of castings from alloy AL9 due to zonal cooling during low-pressure casting
Purpose. To study the effect of zonal cooling, i.e. various cooling means, accelerating the heat sink to the rate of solidification in local thickenings. Metodology. Applied standard methodology for determining zonal coo...
Economic evaluation of using upgraded hopper cars for transportation of hot pellets and agglomerate of 20-9749 model
The rolling stock is the basis for efficient and high-quality transportations; the level of its technical condition and structure influences the quality of the transportation process, productivity and final financial per...
Optimization of chemical composition of steel for railroad wheels providing stabilization of mechanical and increase of operational properties
In connection with the increase in axle loads of freight cars on the railways and the increase of their speed of movement, the requirements to the service and operational properties of railway wheels, including wear resi...