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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Borgward“
SUMMARY:SmartSinter – Bulk material tracking and its properties
DESCRIPTION:Sinter is a dominant operational material for the blast furnace and represents a continuous inhomogeneous material flow. Depending on the process step, different material flow structures can be found in the material flow. In order to be able to describe such material flow and its relevant attributes, sub-areas were analyzed in the SmartSinter-project and a model concept was developed. Sieves and conveyor lines  can be relatively easily overserved and described in terms of material flow. Sinter coolers or bunkers in the stock house pose a challenge, as their interior cannot be observed. In order to examine the flow characteristics of these sub-areas, a physical bunker section model, bunker simulation (DEM) and tracer studies (RFID & color tracer) were used in the operating facilities. A transition function for the material flow was found for the cooler. This function describes the system’s response when input properties change. In the storage bunker area, we investigated the applicability of the RFID-technology. In the bunkers there is a pronounced core flow, which was confirmed with all three used methods. The DEM-Simulation was able to quantify this core flow and also provided important information about the segregation process when filling and emptying the bunker. Coarse material collects near the bunker wall, while finer parts concentrate in the core (center). In the first phase of emptying the bunker, more fines dominate and in the final phase the coarse fraction is discharged. So it was determined that the original smooth grain distribution leaving the sinter plant fluctuates greatly after the bunker system. Online measurement techniques for determining the grain size distribution were investigated and the challenges of these systems were explained. The observed different chemical analyzes in the individual grain classes and the findings from the bunker investigations can influence the downstream blast furnace process.
CLASS:PUBLIC
DTSTART:20220831T145500
DTEND:20220831T152000
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