Outotec® Steel Belt Sintering The Outotec® Steel Belt Sintering (SBS) process brings smelting furnace efficiency to a whole new level. Benefits The use of sintered pellets makes smelting furnace Strict environmental limits can be achieved operations more stable and profitable. with small gas cleaning units and the Pelletizing and sintering play a crucial role in effective recycling of cooling gases modifying the smelting behavior of ore since good Low operational costs charge uniformity results in consistent smelting Good and consistent pellet quality furnace performance, lower power costs and higher Pellets can be sold for other users as the recovery yields. pellets are strong enough to withstand Outotec Steel Belt Sintering is currently the most long transport distances efficient and profitable solution available for chromite ore and niobium ore pelletizing. It can also be adapted to handle iron ore, manganese ore, nickel ore and steel plant dust. Outotec Steel Belt Sintering Furnace energy consumption is very low. The efficient utilization of CO-rich off-gas from the smelting furnace further The Outotec Steel Belt Sintering Furnace is an increases total savings. effective, multi-compartment oven through which pellets are conveyed on a perforated steel belt. This Solve your fines problem by sintering them treatment gives the pellets a strong structure that can into profitable pellets withstand mechanical and thermal treatment. Since the cooling gases are efficiently utilized in the front- The primary raw materials in the steel belt sintering end compartments for drying, heating and sintering process are ore fines and/or concentrates, as well as purposes, the steel belt sintering furnace's external fine coke. These feed materials are ground in a ball mill, de-watered in capillary-effect ceramic filters and pelletized in a drum before finally being sintered in the steel belt sintering furnace. Technical specifications for the Outotec® Steel Belt Sintering Furnace The end products are spherical, uniformly sized, hard and porous pellets with consistent physical Design capacity 300 000 – 700 000 tpa and chemical properties. They are an ideal charging Total length 30 – 45 m material for ferroalloy smelting in the Outotec® Belt width 4 – 6 m Submerged Arc Furnace. External energy 150 – 250 kWh/t consumption Technological breakthrough Total electric energy consumption in 50 – 80 kWh/t product The Outotec Steel Belt Sintering Furnace, which Outotec SBS Plant consists of multiple compartments, is designed to Green pellet feed 50 – 110 t/h optimize output. The counter-current flow of cooling gases carries waste heat from finished pellets to Temperature in sintering 1300 –1400 °C compartment those entering the front-end compartments. Due to the highly efficient use of cooling gases in the front-end 100 000 – 250 000 Nm3/h Off-gases total 50 – 150 °C compartments and low exhaust gas temperatures, the external energy consumption in the sintering furnace Cooling airs total 100 000 – 250 000 Nm3/h is very low. The exhaust gas flows are minimal and are Sintered product pellets 45 – 90 t/h cleaned in the Outotec® Cascade Scrubbers. Plant dust is effectively recycled back to the pelletizing process. Outotec® Ferrochrome Process The most profitable ferrochrome Benefits of high-quality pellets for ferroalloy production concept on the market smelting in a closed furnace: The structure of the Outotec® Ferrochrome Process Increased recovery combined with state-of-the-art process control Better furnace operation systems guarantee high availability and reliable Higher average load and power factors operations, as well as a clean working environment. Significantly lower energy consumption Continuous and consistent operation In addition, the low energy consumption, small High furnace availability process gas volumes that are circulated for maximum Ability to use low-cost fines energy recovery and closed process water circulation Increased production with the option of also make our ferrochrome process attractive from preheating the furnace charge in an environmental perspective. This is why the Outotec the Outotec® Preheating Kiln Ferrochrome Process is considered an industry Up to 20% increased capacity from benchmark and Best Available Technique (BAT). your smelting furnaces Outotec® Steel Belt Sintering (SBS) Plants and Outotec® Smelting Plants Owner Plant Type Capacity Products Start-up Finland, January 2014. Cristal, Outotec Smelting Plant 500,000 tpa slag, Titanium slag, pig iron 2014 Saudi Arabia 235,000 tpa pig iron TISCO & Shanxi Taigang Wanbang Outotec SBS Plant 700,000 tpa pellets Sintered chromite pellets 2013 Furnace Charge Co., Ltd., China Outotec Smelting Plant 2 x 69 MVA SAF High carbon ferrochrome Mintal Group Co., Ltd., Outotec SBS Plant 700,000 tpa pellets Sintered chromite pellets 2013 China Outotec Smelting Plant 2 x 69 MVA SAF High carbon ferrochrome Outokumpu Chrome Oy, Finland Outotec SBS Plant 600,000 tpa pellets Sintered chromite pellets 2012 Outotec Smelting Plant 135 MVA SAF Charge grade ferrochrome Glencore Merafe Venture, Outotec SBS Plant 600,000 tpa pellets Sintered chromite pellets 2012 Rustenburg Smelter, South Africa International Ferro Metals (SA) Outotec CO Gas Filter 2x13, 200 Nm3/h Cleaned CO gas 2010 (Pty) Ltd, South Africa CO gas Samancor Chrome Ltd, Upgrade of to 620,000 tpa pellets Sintered chromite pellets 2010 Tubatse Ferrochrome, South Africa Outotec SBS Plant Samancor Chrome Ltd, Middelburg Outotec SBS Plant 600,000 tpa pellets Sintered chromite pellets 2010 Ferrochrome, South Africa Glencore Manganese France, Refurbishment of 102 MVA SAF High carbon 2009 France smelting furnace ferromanganese Asa Metals (Pty) Ltd, Outotec SBS Plant 600,000 tpa pellets Sintered chromite pellets 2009 South Africa Outotec Preheating Kiln 2 x 66 MVA SAF Charge grade ferrochrome AO TNK Kazchrome, Outotec SBS Plant 700,000 tpa pellets Sintered chromite pellets 2009 Kazakhstan Glencore Merafe Venture, Outotec SBS Plant 2 x 600,000 tpa Sintered chromite pellets 2007 Wonderkop Smelter, South Africa pellets International Ferro Metals (SA) (Pty) Outotec SBS Plant 400,000 tpa pellets Sintered chromite pellets 2007 Ltd, South Africa Hernic Ferrochrome (Pty) Ltd, Outotec SBS Plant 350,000 tpa pellets Sintered chromite pellets 2005 South Africa Outotec Preheating Kiln 75 MVA SAF Charge grade ferrochrome AO TNK Kazchrome, Kazakhstan Outotec SBS Plant 700,000 tpa pellets Sintered chromite pellets 2005 Samancor Chrome Ltd, Upgrade of to 620,000 tpa Sintered chromite pellets 2003 Ferrometals, South Africa Outotec SBS Plant pellets Glencore Merafe Venture, Outotec SBS Plant 520,000 tpa pellets Sintered chromite pellets 2002 Boshoek Smelter, South Africa Outotec Preheating Kiln 2x54 MVA SAF Charge grade ferrochrome Outotec provides leading technologies and services for the sustainable use of Earth’s natural resources. As the global leader in minerals and metals processing technology, Outotec has developed many breakthrough technologies over the decades. The company also provides innovative solutions for industrial water treatment, the utilization of alternative energy sources and the chemical industry. Outotec shares are listed on NASDAQ OMX Helsinki. [email protected] www.outotec.com Copyright © 2014 Outotec Oyj. All rights reserved. .