Pelletizing is a process that involves mixing very finely ground particles of iron ore fines of size less than 200 mesh with additives like bentonite and then shaping them into ovalspherical lumps of 816 mm in diameter by a pelletizer and. The process of pelletization helps converting iron ore fines into uniform size iron ore pellets that can be fed in the blast furnaces or in the dri kiln dri. Iron ore pellets market size by grade blast furnace, direct reduction, by balling technology balling disc, balling drum, by application steel production, iron based chemicals, by steelmaking technology electric arc furnace, electric induction furnace, oxygen basedblast furnace, by product source hematite, magnetite, by pelletizing process travelling grate, grate kiln, industry. Introduction to iron ore pellets and pelletizing processes. The fines resulting from the concentration process must be agglomerated for use in iron and steelmaking. Traveling grate 5664 mm x 69500 mm rotary kiln 6858 mm diameter x 45720 mm long annular cooler 21945 mm x 3657 mm plant commissioning. After assessing the potential of pelletization of iron ore in india various companies up of iron.
Pelletizing is the process of compressing or molding a material into the shape of a pellet. North america, bf and dr grade, supply and quality dr. For the pelletizing of iron ore there are two main types of processes namely, the straight travelling grate stg process and the grate kiln gk process. Modification and redesign of equipment and processes. Iron ore pellet plant equipment pdf materiauxdelvaux. Metso is supplier of both straight grate and grate kiln pellet plants. Iron ore pellets and pelletization process ispatguru. In 2011 the financial times has speculated that iron ore is more integral to the global economy than any other commodity, except perhaps oil. Handling of iron ore pellets is an important part in the converting process for.
Today iron ore agglomeration is the largest tonnage application for sintering, with plants operating at up 20,000 metric tonnes per day. Critical design aspects under indian condition type of ore and its characteristics play an important role in pellet plant design and its performance. Iron ore pelletization technology and its environmental. Iron ore, as mined, is a combination of iron with oxygen and various other unwanted substances, generally known as gangue. By means of various industrial processes incorporating cuttingedge technology, iron. Dry or wet grinding process is adopted for grinding the iron ore fines. Pellets have good reducibility since they have high porosity 25 % to 30 %. Pelletisation was invented to make use of blue dust and ultra fine concentrate generated in the iron ore beneficiation plants. Creating steel from lowgrade iron ore requires a long process of mining, crushing, separating. Mining, low grade iorn ore, pellet plant, beneficiation, eia. The mixture of iron bearing materials iron ore rubble, sinter andor pellets and additives flux material. Iron ore and iron ore pellets are important sources of iron for manufacturing steel. In such a facility, the iron ore fines are mixed with fluxes, carbon fuel, and water. Grate kiln pellet plants developed and sold by allis chalmers which became part of.
Metso is the only supplier in the world that has both the straight grate and the grate kiln process for pelletizing. Iron ore beneficiation plant process at noamundi wiki in the. List of stone crusher in noamundi mvc molenbeersel. The various advantages of iron ore pellets are given below.
Beneficiation of iron ore and the treatment of magnetic iron taconites, stage grinding and wet magnetic separation is standard practice. In both cases, the objective of the process is to drive off the oxygen contained in various forms of iron ore sized ore, concentrates, pellets, mill scale, furnace dust, etc. This also applies to iron ores of the nonmagnetic type which after a reducing roast are amenable to magnetic separation. Outotecs traveling grate pelletizing plant is the industrys leading induration technology for iron ore pellet production for a wide range of plant capacities. An advanced process synthesis for the utilization of iron ore within the framework of zero. Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. Since there is a strong tendency to increasing plant capacities, the design fea tures of. A fullscale plant trial of the substitution of a specific organic binder for bentonite was conducted in the companys straight grate pellet plant in quebec, which produces 9. Mos t of the iron ore produc are sold to european seel mills has more than 3500 employees. The plant designed by ms metso earlier known as aker kvaerner utilises wet grinding process. His process involved grinding taconite to remove gangues and upgrading the iron ore i. Pelletizing is a process that involves mixing very finely ground particles of iron ore fines of size less than 200 mesh with additives like bentonite and then shaping them into ovalspherical lumps of 816 mm in diameter by a pelletizer and hardening the balls by firing with a fuel. The use of binders for iron ore pelletizing is required to. The iron ore production has significantly expanded in recent years, owing to increasing steel demands in developing countries.
The iron ore pelletizing process consists of three main steps. By means of various industrial processes incorporating cuttingedge technology, iron ore is processed and then sold to steel companies. The iron ore concentrate is now mixed and ready for the pelletizing process. The first metallurgical step is to reduce iron ore to metallic iron, a process which is mostly carried out in a blast furnace, using coke as both a fuel and reducing agent. Lkabs strategyto produce pellet s wa initiated 50 ago with the opening of the first pelletizing plant in malmberget, a plant which no.
Pdf sample proposal for an iron ore pelletizing plant. The high quality of our iron ore is a key component in the production of reinforcing bar rebar, the. This chapter shows the status of the pelletizing process with a special focus on binders. These selfreducing pellets are made from a mixture of iron ore concentrate, reductor coal or coke, and binder. The fastmet is a continuous process which basically consists of a rotary hearth furnace where one or two layers of selfreducing iron ore pellets are placed. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel98% of the mined iron ore is used to make steel. Get price and support online iron ore corporation solids control and fine. Direct reduction processes can be divided roughly into two categories. Beneficiation plants and pelletizing plants for utilizing low. The idea of rolling moist fine ore in a drum to form balls and then drying and firing it was first. Pdf adobe acrobathtmlthe first large scale iron ore jig beneficiation plant in india was commissioned in 2006 at noamundi. Vale is the worlds biggest producer of iron ore and pellets, raw materials essential to the manufacture of steel. The sintering process uses the combustion heat of coke breeze fuel. Beneficiation plants and pelletizing plants for utilizing low grade.
However, the content of iron in ore deposits has deteriorated and lowgrade iron ore has been processed. This is where the processing plant of scandinavias biggest iron ore producer is located, with a facility for direct loading of iron ore pellets onto ships. These are typically fed to a blast furnace or dri plant as part of the process to make steel. The results of the fullscale pellet plant trial are given in table 15. A wide range of different materials are pelletized including chemicals, iron ore, animal compound feed, plastics, and more. Iron ore pellets market size and statistics industry report. Our pelletizing plant in oman provides top quality direct reduction pellets to our main clients in the middle east and north africa. Simulation of iron ore pellets and powder flow using smoothed. Iron ore is both mined and upgraded on minnesotas mesabi iron range. Metso metso iron ore pelletization iron ore pelletization. The iron ore production has significantly expanded in recent years, owing to increasing steel demands in. Pelletizing a pellet plant contains a series of balling drums where the iron ore concentrate is formed into soft pellets, in much the same manner that one rolls a snowball, to make a pellet about the size of a marble between 14 and 12.
Consequently, the number of pelletizing plants is expected to increase in the future. The location of a pelletizing plant affects the method of receiving raw materials such as iron ore, additives and binders. Used iron ore pellet plant equipment in pakistan china. All such plants are large tonnage operations treating up to 50,000 tons per day and ultimately requiring grinding as fine as minus 500. Metso iron ore pelletization iron ore pelletization. Iron ore pellet is a kind of agglomerated fines which has better tumbling index when compared with the iron ore and it can be used as a substitute for the iron ore lumps both in the bf and for dri production. Realizing state of the art all indian pellet plant by mecon. Iron ore beneficiation plant process at noamundi wiki. Lime calcination plant 1200 tpd 1200 tpd iron ore beneficiation 1. Steven furedy product manager iron ore pelletizing. The iron ore beneficiation flowsheet presented is typical of the large tonnage magnetic taconite operations. The project was commissioned in a record time of 23 months from the first pilling work.
The existing plant has a processing rate of 6,000 th, and a new plant with a processing rate of an additional 9,000 th had to be added. The quality requirements of pellet, such as physical, chemical and metallurgical specifications, depend on each ironmaking furnace and thoserequirements influence the operation ofthe iron ore pelletizing plant. Iron ore is found in nature in the form of rocks, mixed with other elements. Pellets have the benefit of lower gangue on account of.
Production of iron ore by the noncaptive mines iron ore million tones percentage recovery lumps 6. Iron ore pellets and pelletization process pelletizing of iron ore was started in the 1950s to facilitate the utilization of finely ground iron ore concentrates in steel production. Jspl barbil pellet plant odisha dry grinding plant jspl. The iron ore production has significantly expanded in recent years, owing to increasing steel demands.
Thereare iron ore mines, processing plants and o re harbors in northe n sweden and norway 7. Besides, these mines supply iron ore to sponge iron and mini pig iron. Beneficiation plants and pelletizing plants for utilizing. Pelletization prosess pelletization is the process of making spheres of high carbon contains uniform quality iron ore. Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slagforming agents and solid fuel coke. Process objective is to transform fine iron ore concentrate into pellets suitable to feed blast furnace or direct reduction plant or corex. The use of solid fuel for pellet indura tion is discussed because of the increasing prices and possible shortages of heavy oil and natural gas. Complete iron ore pellet plant cost,iron pelletizing equipment for the zenith is the professional mining equipments manufacturer in the world, located in china,india, upcoming list of pellet plants in india gold ore crusher. The resultant highgrade ore is in the form of fine particles, as small as 0.
641 643 49 606 1654 831 1677 1441 1604 392 1363 433 990 1638 1121 1080 841 244 1194 1214 1629 2 1551 1588 748 1009 626 112 626 502 1504 608 663 328 1268 964 1426 1150 998 66 520 806 1297