rotary kiln iron ore pellet plant in congo

The rotary kiln provides constant mixing of the pellets bringing all the pellets to the same temperature In a straight grate the pellets at the top of the bed are “over cooked” and those at the bottom are “under cooked” Higher quality means fewer fines better reducibility and less variation in compression strength

In addition to being the secondlargest mining company in the world Vale is also the largest producer of iron ore pellets Vale SA opened a 9 MTPA 2 x 45 Iron ore pellatisation plant in Sohar Sultanate of Oman on March 3rd 2011 High grade iron ore for the plant is imported from Brazil finished product is sold to Steel plants

The plant as shown in Fig 2 essentially consists of raw material handling and preparation systems rotary kiln with heat ing arrangements for reduction of iron oxide kiln for cooling the reduced material and the facilities for separating sponge iron from char by screening and magnetic separation

low price medium iron ore cement kiln in Kinshasa Congo AfricaPrice of cement grinding ball mill in congo kinshasa congo concassage kinshasa de in circuit circuit de concassage in kinshasa congo cost ofMill For Fine Grinding Of Minerals In Congo DRC also produced 395 309 tonnes of cement Get Price Congolese children toil in

In an iron ore pelletizing plant crude ore is upgraded to pellets to be used as feedstock in steelmaking plants As part of a gratekiln pelletizing plant the rotary kiln is an indurating furnace in which the pellets are sintered The rotary kiln involves complex flow of large amounts of gas and the process is strongly coupled to the fluid

These plants use iron ore pellets in the rotary kiln Raw material mix consisting of iron ore dolomite and noncoking coal is fed at the one end of the rotary kiln and is heated by coal burners to produce DRI The product DRI along with char sometimes called dolo

NOx Formation in Rotary Kilns for Iron Ore Pelletization By Rikard Edland Get PDF 2 MB Abstract The production of iron ore pellets is often performed in the socalled GrateKiln process The aim of the process is to oxidize the magnetite Fe3O4 to hematite Fe2O3 and to sinter the pellets so they can be used in steel manufacturing

Iron Ore Sponge Iron Rotary Kiln Sponge iron process uses a rotary kiln for the reduction of high grade lump ores or pellets fig 1 the feed is introduced together with reducing and desulphurizing agents lime stone or raw dolomite into an inclined rotary kiln heated counter current to the flow of hot gas and reduced to form sponge iron

Consisting in the present case of hemati tic concentrate the pellets are then charged at a temperature of about 1000 deg C into the rotary kiln together with lowvolatile coal as reductant and the desulphurizing agent After a slight drop as reduction starts the strength of the pel lets increases to almost about 200 kgfpellet

Jul 10 2017 · The iron ore production has significantly expanded in recent years owing to increasing steel demands in developing countries However the content of iron in ore deposits has deteriorated and lowgrade iron ore has been processed The fines resulting from the concentration process must be agglomerated for use in iron and steelmaking This chapter shows the status of the pelletizing process