Sintering. Iron ore sintering consists of heating a layer of fines until partial melting occurs and individual ore particles fuse together. For this purpose, a travelinggrate machine is used, and the burning of fine coke (known as coke breeze) within the ore generates the necessary heat. Before being delivered to the sinter machine, the ore ...
Theory and Practice of Sintering of Iron ore. Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines ( mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a particular form of ...
According to the Environmental Protection Agency, the sintering process converts finesized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated product, sinter, of suitable size for charging into the blast furnace.
Sintering yield is the ratio of the amount of sinter in the size range able to be use in blast furnace to the amount of iron ore mixture (including return fines, fuel and fluxes). The higher the sintering yield is, the better the productivity is and less fines are generated by the produced sinter.
These micro fines of highgrade concentrates had to be agglomerated for their use in the blast furnace and this has led to the development of the pelletizing process. These agglomerates, in turn, sharply improved blast furnace performance and led to a major shift in blast furnace burdening. History of sintering of iron ore
CHAPTER11 FUNDAMENTALS OF IRON ORE SINTERING R. P. Bhagat INTRODUCTION The process of sinter making originated from a need to make use of fines generated in mines and in ore benefiCiation plants. With the development of sintering technology, a sintering plant has become a tremendous success for providing a phenomenal increase in
Sinter plants agglomerate iron ore fines (dust) with other fine materials at high temperature, to create a product that can be used in a blast final product, a sinter, is a small, irregular nodule of iron mixed with small amounts of other minerals. The process, called sintering, causes the constituent materials to fuse to make a single porous mass with little change in the chemical ...
Sinter feed is an iron concentrate containing fine particles and moisture and, being similar to iron ore fines,”1 is at risk of liquefaction, resulting in cargo shift and loss of stability. Liquefaction is believed to have resulted in a number of casualties, causing the loss of many seafarers' lives.
Jul 08, 2013· Factors influencing sintering process. ... Optimum mean size of iron ore fines for good sintering process will vary from sinter plant to sinter plant since it is dependent on several factors but as a general rule higher mean size is better for permeability and hence helps in sintering productivity.
During the iron ore sintering process, the loose raw materials, mixtures of fine ore, limestone flux and coke breeze, are converted into a porous but physically strong cake, which is generally composed of four main phases: iron oxides, ferrites, most of which are a complex silicoferrite of calcium ...
Manganese Ore Treatment Summary. This flowsheet is designed to produce a maximum amount of the manganese in a coarse form which will be marketable without the further and high cost of nodulizing or sintering.
The raw materials used in the sintering experiments were Thabazimbi iron ore, Sishen iron ore, return fines, coke, lime, quartz, water and ferric chloride (FeCl3). The following abbreviations are used to describe the examined samples: 20 and 80 (50 and 50) with fluxes: mixture of 20 mass per cent Thabazimbi iron ore, 80 mass per cent Sishen
The aim of the laboratoryscale melting test is to evaluate the development of sinter matrix strength during melting of the fluxed, fine reactive (nominally 1 mm) component of the ore. This test simulates the initial melt formation that occurs in the granule adhering fines layer during the sintering process, resulting in intergranule bonding.
fine, in raw material of sinter ore lowers the permeability of sintering bed and the yield of the sinter ore. The collapse of voids in the sintering bed will cause these problems although the bed has a porous structure. Therefore, controlling the bed structure by including loosely packed regions and …
Besides iron ores, it can also be applied for sintering of manganese ore fines. Sintering is a process in which iron ore fines, coke breeze, limestone fines, dolomite/ dunite fines, iron and flux bearing fine waste products of the steel plant are converted into coarse agglomerates on a permeable grate by fusion.
Jul 15, 2014· Iron Ore Sinter Iron ore sinter or simply called sinter is usually the major component of a blast furnace iron bearing burden material. Sinter normally consists of various mineral phases produced by sintering of iron ore fines with fluxes, metallurgical wastes and a solid fuel.
PDF | Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slagforming elements and coke. The purpose of sintering is to obtain a product with suitable ...
2 Metal ore (including sulphide ore) or concentrate roasting or sintering installations with a capacity exceeding 150 tonnes of sinter per day for ferrous ore or concentrate, and 30 tonnes of sinter per day for the roasting of copper, lead or zinc, or any gold and mercury ore treatment.
The sintering process begins with the preparation of a sinter mixture consisting of iron ore fines, fluxes, solid fuel (called bonding agents in Japan) such as coke breeze, and return fines from the sinter plant and blast furnace as well as recycled ferruginous materials …
coke on thermal curve of sintering bed in ) In the paper, the effects of biomass fuel types and replacement proportion of coke on sintering and pollutants emissions reduction of flue gas were studied. 2. Materials and Methods Raw Materials The iron ore …
L. Lu, O. Ishiyama, in Iron Ore, 2015. Abstract. Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. In this chapter, the sintering process is first described and the key steps of the sintering process, namely, granulation and thermal densification, are identified.
ore fines and their potential impacts on the iron ore sintering process and sinter quality are required. In this paper, the sintering process and sinter structure have been analysed and the key factors affecting the sintering performance of iron ore fines, including productivity and quality, identified. Under fixed sintering
Sintering ofiron Ore Fines, and Raw Materials for Bhilai Steel Plant G. P. MATHUR, G. V. SUBRA MANYA and P. 1. A. NARAYANAN A detailed study has been made at the National Metallurgical Laboratory on the sintering charac
Mar 09, 2013· flux sinter, Iron ore fines, self fluxing sinter, sinter, sinter machines, Stright line machine. circular machine, super fluxed sinter, The Sintering Process of Iron Ore Fines Sintering plants are normally associated with the production of hot metal in blast furnaces in integrated steel pants.
L. Lu, O. Ishiyama, in Iron Ore, 2015. Conclusions. Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. Compared with pellets, production of sinter is cheaper, and compared with lump ore, fluxed sinter is often more reducible with better softening characteristics.
Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. In this chapter, the sintering process is first described and the key steps of the sintering process, namely, granulation and thermal densification, are identified.
Outotec Traveling Grate Sintering is based on our extensive experience and continuous RD in fineore preparation and agglomeration. The process is suitable for sintering a wide range of raw materials, including iron, manganese, and nickel ores. Our innovative technologies, including industryleading process automation