Essays about: "LKAB"

Showing result 11 - 15 of 78 essays containing the word LKAB.

  1. 11. Improving Availability of the Pelletization Process

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : Emil Andreasson; Pontus Åhman; [2022]
    Keywords : Availability; Predictive Maintenance; Pelletization; Statistical Process Control; Refractory Material; DMAIC;

    Abstract : The Grate-Kiln-Cooler process is a commonly used method of sintering during iron ore pelletization, where the pellets are formed, dried, and hardened. The pellets are oxidized in the rotating Kiln, turning magnetite (Fe3O4) to hematite (Fe2O3), making the pellets attain suitable metallurgical attributes for further processing. READ MORE

  3. 12. Tracking motion in mineshafts : Using monocular visual odometry

    University essay from Umeå universitet/Institutionen för fysik

    Author : Karl Suikki; [2022]
    Keywords : Monocular Visual Odometry; Tracking; ORB; SIFT;

    Abstract : LKAB has a mineshaft trolley used for scanning mineshafts. It is suspended down into a mineshaft by wire, scanning the mineshaft on both descent and ascent using two LiDAR (Light Detection And Ranging) sensors and an IMU (Internal Measurement Unit) used for tracking the position. READ MORE

  4. 13. Uranium Mineralizations at Kiirunavaara,Northernmost Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Diego Segovia Menard; [2022]
    Keywords : kiirunavaara; uranium; EPMA; water; hydrothermal;

    Abstract : In recent years, a variably high amount of uranium (U) and radon (Rn) were found in the water and airof the Kiirunavaara mine in Kiruna, northern Sweden. The Swedish Agency for Marine and WaterManagement (Havs och vattenmyndigheten) has maximum limits for “special polluting substances” inwater that is released to natural recipients (HVMFS 2019:25), therefore, the mining company LKAB,owner and operator of the Kiirunavaara mine, decided to conduct a study to investigate the issueregarding these findings, triggering this master thesis. READ MORE

  5. 14. Kiruna stadsomvandling : en fallstudie om ett landskaps förändring med kirunabornas perspektiv som utgångspunkt

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Jenny Ajanki; Lotta Engvall; [2022]
    Keywords : Kiruna stadsomvandling; plats; platsanknytning; platskänsla; solastalgi; identitet; minne; kulturarv; medborgardialog;

    Abstract : Människan har alltid anpassat landskap utefter sina egna och samhällets behov, och därmed är förändringar en naturlig del av landskapets utveckling. Just nu genomgår staden Kirunas landskap drastiska förändringar till följd av gruv- och mineralkoncernen LKABs järnmalmsbrytning i Kirunagruvan. READ MORE

  6. 15. Towards Understanding slag build-up in a Grate-Kiln furnace : A study of what parameters in the Grate-Kiln furnace leads to increased slag build-up, in a modern pellet production kiln

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Oscar Olsson; Uno Österman; [2022]
    Keywords : Grate-kiln; Slag; Interpretable machine learning; IID; independent and identically distributed; Kulsinter; pellets; slagg; slag; LKAB;

    Abstract : As more data is being gathered in industrial production facilities, the interest in applying machine learning models to the data is growing. This includes the iron ore mining industry, and in particular the build-up of slag in grate-kiln furnaces. READ MORE