Fundamental study of pore formation in iron ore sinter and pellets

Chapter 1 Introduction 1-1. 1.1 Brief description of iron ore sintering and pelletizing processes. 1-1. 1.1.1 Development of sinter and pellets 1-1. 1.1.2 Sintering process 1-2 ... increase the porosity of pellets by adding carbonaceous materials. [40,41] and the . B. Studies using tablets as above but with addition of coke.

THE STUDY OF SAW-DUST ADDITION ON IRON-ORE SINTERING .

Apr 18, 2014 . Abstract. An investigation was carried out into the use of saw-dust form oak wood as a supplementary fuel in the iron ore sintering process. The primary fuel was coke breeze and total heat output of all the tested raw blends was the same and was calculated as 3.8 wt. % coke breeze. The coke substitution.

Schedule - Iron Making: Agglomeration, Coke making, Blast Furnace .

16:45 – 17:15, 6AIMKN02, Advanced evaluation techniques of iron ore for the sintering process, Lu, CSIRO Australia. 17:15 – 17:35, 6AIMCS06 .. 15:00 – 15:15, 8AIMCS38, Effect of iron ore slime addition on the pelletizing process of high grade iron concentrate, P. Prusti, CSIR-IMMT, Bhubaneswar. 15:15 – 15:30.

Optimization of Firing Temperature for Hematite Pellets - J-Stage

The heat hardening by oxidation is a process commonly used in iron ore pelletization process. The green pellets are fired in induration machine using Corex gas at JSW Steel Limited Pellet Plant. The firing temperature of induration machine strongly influences the physical and metallurgical properties of the pellet. Due to.

Iron ore pelletizing -

Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. These are typically fed to a blast furnace or DRI plant as part of the process to make steel.

Limiting phenomena related to the use of iron ore pellets in a blast .

Nov 13, 2015 . Abstract. Most of the iron in the world is produced using a blast furnace process, which has iron ore (iron oxides) and coke as its raw materials. When pellets are used in a blast furnace, the iron burden material is charged in the form of pellets and fine, iron-rich by-products are charged typically in the form of.

the effect of high grade pellet feed on sintering performance

Keywords: Sintering; Sinter feed; Pellet feed; Iron ore. 1 INTRODUCTION. 1.1 The Use of Intensive Mixers in the Sintering. Process. Niwa et al. [1] compared the HPS (Hybrid Pelletized. Sinter) with . to preferential coke addition on green pellets. Increase in . in China Steel sinter plant, it improved the sintering coke rate and.

coke addition in the iron ore pelletizing process,

SINTERING OF ORE MIXES CONTAINING IRON CONCENTRATES .

on the use of prepared sintered material or iron pellets. Both the sinter and the pellets are . of below 1,0 % is partially metallised and may be used as an iron ore substitute for the steelmaking process. Key words: sintering, concentrates . in the range from 0,69 to 16 %, while the coke addition was 11,5 %, 16,8 % and 21 %.

Pelletizing of Sishen concentrate

Pelletizing is one of the conventional and preferred agglomeration processes for iron ore concentrate investigated at Kumba Value-In-Use Laboratories. .. Figure 5 shows the compressive strength of pellets that were baked for 15 minutes, with 0.75% and 1% bentonite (without any coke addition), and 1% bentonite plus 1%.

Influence of charcoal replacing coke on microstructure and reduction .

Influence of charcoal replacing coke on microstructure and reduction properties of iron ore sinter . In addition, the reduction degradation of sinter also improves since degradation during crystalline transformation is restricted. . Reduction of boron-bearing iron ore concentrate/coal composite pellet and kinetics analysis.

Iron Ore Pellet Dustiness Part I: Factors Affecting Dust Generation .

Mar 9, 2015 . Factors studied included bed depth within a straight grate furnace; pellet chemistry; firing temperature; coke breeze addition; and tumble index. . The second paper (Iron Ore Pellet Dustiness Part II) explains the relationship between AI and dust for good-quality pellets; and compares fines generation.

coke addition in the iron ore pelletizing process,

A review on nut coke utilisation in the ironmaking blast furnaces

In the ironmaking blast furnaces, nut coke (10–40 mm; 2–23 wt-%) is charged together with the . known as nut coke. In recent past, it is discovered that small amount of nut coke addition in mixture with ferrous burden contributes to better gas permeability, ... the reduced burden (iron ore pellets) was due to the soft- ening of.

coke addition in the iron ore pelletizing process,

Mathematical model for a straight grate iron ore pellet induration .

Dec 20, 2017 . a b s t r a c t A mathematical model is developed for induration of the iron-ore pellets in an industrial-scale plant based on the laws of mass, heat and momentum . Physicochemical processes occurring during the induration of pellets such as drying of moisture, calcination of line and coke-magnetite.

coke addition in the iron ore pelletizing process,

Iron Ore Pelletization – Packing Machines | Electrostatic Precipitator .

The process of pelletization enables converting Iron Ore Fines into “Uniformed Sized Iron Ore Pellets” that can be charged into the blast furnaces or for . are added to control the basicity as needed in the downstream iron making processes, bentonite is used as a binder and coal / coke breeze is a solid fuel supplement.

Study the effect of catalyst (THERMACT-BF) on reduction behavior .

THERMACT – BF on hard coke with iron ore it was observed that the efficiency of reduction of Iron Ore and Coke . The reduction of iron oxide is a gas–solid reaction, which has been extensively studied in the process conditions test, . reduction of iron oxides is markedly improved by the addition of alkali oxides catalysts.

COREM | Publications - Scientific - Research - Ore - Processing

Recognized as a world-class organization in mineral processing R/D, COREM regularly publishes the results of its research work in comminution, physical separation, flotation, extractive metallurgy, pelletizing, thermal processes and mineralogy. Below is a list of scientific publications done by COREM researchers in.

Biomass use in the steel industry - IEAGHG

Iron ore & pellets. Coal. Coke. COKE OVENS. SINTER PLANT. BLAST FURNACE. Slag. Molten pig iron / hot metal. STEELMAKING. CONVERTER (BOF). Sinter .. addition. • Coke hot strength decreases with charcoal addition. • Use of organic additive was very beneficial. • Use of high density charcoal may be beneficial.

Blast Furnace Ironmaking Process Using Pre-reduced Iron Ore

*1. Environment & Process Technology Center. *2. Hokkai Iron & Coke Corp. sinter fine ore. Manufacturing pre-reduced ore and using it in the blast furnace is considered one of the . a shaft furnace is used when reducing lump ore or pellets. 2) Final reduction . In addition, since the reduction load is decreased, the blast.

A Novel Technique for Making Cold Briquettes for . - IOPscience

Although iron ore fines are used for making pellet after beneficiation still, it generates a huge quantity of iron ore waste during beneficiation with comparatively lower iron content. In the present study, briquettes are made by a stiff extrusion process from metallurgical waste like iron ore fines and coke fines with the addition of.

Iron processing | Britannica

Iron processing, use of a smelting process to turn the ore into a form from which products can be fashioned. Included in . The pure metal is malleable and can be easily shaped by hammering, but apart from specialized electrical applications it is rarely used without adding other elements to improve its properties. Mostly it.

Mathematical model for a straight grate iron ore pellet induration .

Straight grate. Induration process. Iron ore pellet. Fuel consumption. Greenhouse gases. a b s t r a c t. A mathematical model is developed for induration of the iron-ore pellets . addition of carbon to the green pellets on performance of the induration process. .. coke addition to the pellet and oxygen injection to the furnace.