The iron ore sintering can be divided in two important 1. ... Pellet Feed Characterization Figure 2 shows the size distribution of the pellet feed 3.2. Granulation Test Results samples used in this work. As expected, the fractions below The granulation test was performed at fixed moisture 0.045 mm of the pellets, PF A.1 and PF B.1, are finer ...

Semantic Scholar extracted view of "Kinetics of iron ore sinter feed granulation" by J. Litster et al. ... Carefully controlled granulation experiments were carried out on a haematite ore with a wide size distribution (0-8mm) over a range of moisture contents. At any one moisture content, the finest size … Expand. 31. PDF. Save.

Effects of process parameters on the growth behavior and granule size distribution of iron ore mixtures in a novel high-shear granulator. International Journal …

The other material parameters of iron ore granules were deliberately referred from the literature on the study of iron ore granules or iron ore pellets [25,[62][63] [64] [65][66]. All the detailed ...

The size distribution of iron ore sinter is critical to efficient blast furnace operation and is an optimised variable in sinter plants globally. Prompt process control response to …

Khosa and Manuel 15) quantified the effect of granules size on granulation across a range of iron ore types by developing a simple model, it was found that for most iron ores, an increase in the ...

The proportions of anthracite substituted for coke breeze in the sinter pot experiments were 0%, 20%, 40%, and 60%, and the effects on the granule size distribution, the sintering indexes, and the ...

In the composite agglomeration process, carbon-free pelletized feed has larger particle size and distributes separately among the sinter mixture, while coke breeze contacts closely with iron ore particles, so it is …

DOI: 10.1016/j.powtec.2019.09.014 Corpus ID: 203138712; DEM study on size segregation and voidage distribution in green bed formed on iron ore sinter strand @article{Li2019DEMSO, title={DEM study on size segregation and voidage distribution in green bed formed on iron ore sinter strand}, author={Chengzhi Li and Tom Honeyands …

The raw feed for granulation comprises mainly iron ore fines. with lesser amounts of coke breeze, recycled sinter fines and. fluxes, including lime which also acts as a binder in the green. state ...

Table 2 Size distribution of the sinter feed. Large 5–8 mm 26.1 [wt%] ... was applied to charging process in iron ore sintering and vertical size segregation in the feed bed was anlyized, where ...

Abstract The ore mixture granulation process is described and the granulation fitness of a series of iron ores forming part of the mixture is studied. Good granulation and control of the maximum sintering temperature makes it possible to achieve the optimum sinter structure, formed by a hematite nucleus surrounded by a lattice of acicular ferrites. …

The mixing effect of powder materials is crucial in the iron ore granulation process, which determines the composition and particle size distribution, thereby affecting the quality of the sinter.

Their incorporation in the sinter feed affects the mechanism of granulation and the granule size distribution. Most studies on the granulation of iron ore for sinter production agree that granules predominantly form through a layering process.

Chinese government data indicate that iron ore sinter producers will be able to save 0.42 million tons of standard coal [21] and cut CO 2 emissions per annum by approximately 1.16 million tons if ...

The product ion of high strength iron ore sinter for blast furnace iron making unit was developed by optimizing the granulometry of less than − 0.150 mm fines in sinter base mix which consists ...

Granulation of sinter feeds is an indispensable step in the iron ore sintering process. Through granulating, iron ore fines, fluxes, fuels and recycle materials (e.g., return fines, dust, etc.) are made into granules that possess appro- priate moisture, reasonable size distribution and good bed permeability for sintering.

The size segregation and voidage distribution down a green bed formed on an iron ore sinter strand were investigated experimentally and using Discrete Element Method (DEM).

The kinetics of iron ore sinter feed granalation were shown to have a major impact on granule size distribution. At laboratory scale, it was shown that granule growth continued until a maximum stable size distribution was achieved. Two stages to granule growth were observed. Fine particles quickly adhered to intermediate and large nuclei …

This work proposes a novel horizontal high-shear granulator for iron ore granulation before sintering process. The granulation behavior such as growth process and structure of granules were firstly analyzed, followed by the effects of operation conditions such as water content, initial particle size distribution, and the concentrate ratio. The …

The size distribution of iron ore fines affects not only the granulation efficiency, but also the formation of sinter melt, and the proportion and stability of coarse particles determines the number of relict ore nuclei in the sinter structure. ... Kinetics of iron ore sinter feed granulation. Powder Technol., 62 (1990), pp. 125-134. View PDF ...

The size segregation and voidage distribution down a green bed formed on an iron ore sinter strand were investigated experimentally and using Discrete Element Method (DEM). The simulated and experimental results showed that an increase in feed rate (from 6 kg/s/m to 18 kg/s/m) significantly decreased the level of vertical size …

Sinter with iron ore mean particle size of 2.59 mm (Classifier fines) yielded better sinter strength with lower fines (–5 mm) and lower RDI. Higher sinter strength is due to …

The size distribution of iron ore sinter is critical to efficient blast furnace operation and is an optimised variable in sinter plants globally. Prompt process control response to discrepancies in sinter size is essential, and the standard sieve measurement test introduces significant delay in data acquisition. We introduce a networked optical …

Raw sinter feed consisting of iron ore fines, coke breeze, limestone, lime, dunite or dolomite and the return sinter fines is initially agglomerated in a rotary drum. ... The size distribution of feed has a template like effect on the granule size distribu- tion. The extent of granule growth, that is, layer thickness is determined primarily by ...

The effects of feed properties on the granulation of iron ore sinter feed have been studied using simplified sinter mixes. A measure of granulation effectiveness, x 0.5, has been defined as the particle size at which half the particles act as adhering particles and half as nuclei particles.High values of x 0.5 correspond to large mean granule sizes. …

The kinetics of iron ore sinter feed granalation were shown to have a major impact on granule size distribution. At laboratory scale, it was shown that granule growth continued until a maximum stable size distribution was achieved. ... Thus, the feed size distribution did not have a significant effect on the kinetic rate constant, although it ...

Several sinter plants are using smaller than 10 mm size as sinter feed with maximum 15% –0.150 mm size fines. We have been sintering –10 mm particles of iron ore fines, which …

Sinter Feed (6.3 mm - 0.150 mm): This is the most usual type of iron ore in the market. It is obtained at later stages of screening. In order to be fed into the blast furnace, the sinter feed must be agglomerated by and transformed into "sinter". The iron content of the CSN Mining sinter feed usually exceeds 63%.

1. Introduction. Granulation of sinter feeds is an indispensable step in the iron ore sintering process. Through granulating, iron ore fines, fluxes, fuels and recycle materials …