The paper describes the main drive systems of an iron ore pelletizing plant and related important design aspects. It is shown how today’s drive systems provide the desired flexibility for the process and lead to high energy efficiency and system reliability. With respect to electric drives expansion projects have many technical issues in common with green-field installations. However, there are...

In the ironmaking processes via carbothermic reduction with tall-bed reactor, composite pellets are rapidly reduced to highly metallized direct iron (DRI) high productivity under temperature. Without coke making and ore sintering process, not only help broaden selection of raw materials but an environmentally friendly approach for process. this study, experiments were conducted ore-coal four he...

Iron ore pellets are small and hard spherical particles agglomerated from a fine iron concentrate. They used in the blast furnace process to produce hot metal. The diameter of is usually between 8 16 mm. In this study, batch magnesia was first sieved into particle sizes 8–10 mm, 10–12.7 12.7–16 mm 16–20 four different size fractions were study effect pellet on metallurgical properties. experime...

Investigations on the chemical and microbial leaching of a Nigerian Iron-ore in sulphuric acid have been carried out. The influence of physico-chemical parameters such as acid concentration, temperature, particle size and stirring speed on the chemical dissolution of the ore was investigated. The dissolution rates are significantly influenced by the temperature and acid concentration while the ...

Iron ore and coal are the two major important raw materials being used in Iron making industries. Usually ore fines containing around 5% Alumina are rejected due to higher proportion of alumina. Therefore, a technology or process which may reduce the alumina content by 2% by beneficiation process will be highly attractive . In addition fine coals with ash content is used nearly 12% is directly ...

In the search for opportunities to decrease operational costs in iron ore mining, waste disposal by conveyor belt has been considered as an alternative. In this work, this form of waste dump is investigated by means of the construction of a test pile and the assessment of geotechnical characteristics such as shear strength and in situ densities. Results were compared with two other dumps built ...