Welcome to the high-quality mining machines zone!
Contact Now
Our company is committed to building crushing, industrial grinding, ore processing and green building materials, and provides intelligent solutions and mature supporting products.
Iron ore use in manufacturing process ppt crusher south africa. pellet manufacturing process of iron ore ppt basalt crusher rotary kiln process of making sponge iron 2.1 historical background the production of more detailed.
Get Quote
Sponge iron making isrocess in which iron ore lumps typically 5mm18mm size are tumbled withelect grade of ironcoking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in finished.
Sponge iron production flow chart raw material feeding to kiln iron ore, coal, dolamite rotary kiln conversion of raw iron ore into sponge iron cooler sponge iron cooling below 100deg by external water cooling intermediate bin desired quality for blending screening in product house.
The rotary kiln process isellestablished process for production of coal based sponge iron. rotary kiln of certain dia and length is provided for reduction of iron ore into sponge iron using noncoking coal as reductant and dolomite as sulphur scavenger however the diameter and length are to be designed based on the plant capacities.
Description of sponge iron manufacturing process most of the plants in india use dri processa solid state direct reduction process by which iron ore is reduced to sponge without phase change figure 1.
Sponge iron manufacturing process or kiln operation withiew to finding out major energy saving potential of the unit. in the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process. substantial amount.
Iron ore use in manufacturing process ppt crusher south africa. grate bar, sponge iron tunnel kiln, sinter plant, henan grate bar, sponge iron tunnel kiln, pellet manufacturing process of iron ore ppt basalt crusher more detailed.
Sponge iron is the product created when iron ore is reduced to metallic iron, in the presence of coal, at temperatures below the melting point of iron. the external shape of the ore is retained with 30 reduction in weight due to oxide reduction resulting in change in true density from 4.4 gmcc to 7.8 gmcc in this product.
Sponge iron, originating from iron ore, namely, silica and alumina and the sulphur and phosphorous contents adversely affect the economics in subsequent steel making operation. therefore, the ore should be high in iron content and low in gangue, physical specification size 520 mm oversizeax.
The bos process uses pure oxygen, injected byance, for refining the relatively impure hot metal and scrap is used for temperature control. the electric arc furnace uses primarily electrical energy to supply heat to melt scrap steel, sponge iron, or mixtures of scrap and other iron units. compared to the bos process, the eaf requires.
Iron ore use in manufacturing process ppt crusher south africa. pellet manufacturing process of iron ore ppt basalt crusher rotary kiln process of making sponge iron 2.1 historical background the production of more detailed.
Sponge iron production process discussed herein are selected from known methods of which the references are available and referable. we look at theifferent methods of producing sponge iron midrex process. hyl process 4th generation or energiron. sl rn process. tunnel furnace process.
Sponge iron, also known as direct reduced iron is produced from hematite iron oreo 18 mm size by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in rotary kiln. sponge iron is rich in metallic iron pure iron with consistent chemical amp physical characteristics.
The process of making sponge iron occurs by removing oxygen from the iron ore. the quality of sponge iron is mainly determined by the percentage of metallization removal of oxygen. this parameter is equal to the ratio of metal iron to total iron in the product. sponge iron itself is not used but can be processed to produce molten iron.
The sponge iron production process the processes for producing sponge iron are either coal or gasbased. thus, sponge iron production plants are set on the foundation of these two reducing more detailed sponge iron plants, sponge iron plants manufacturers, sponge iron.
Tata sponge iron ltd products amp services sponge iron. the process of sponge iron manufacturing involves removal of oxygen from iron ore. when that happens, the departing oxygen causes micro pores in the ore body, more detailed.
Sponge iron is iron ore reduced directly in solid state using coal gas, natrual gas or coal as reductants and is also known as directly reduced iron dri. sponge iron or direct reduced iron dri sponge iron is the metallic product formed by the reduction removal of oxygen of iron ore at temperature below the fusion point of iron while it is still in solid state. it is also called.
We look at theifferent methods of producing sponge iron midrex process hyl process 4th generation or energiron sl rn process tunnel furnace processidrex process miderxs involvement in the direct reduction process can be traced back to the work done by surface combustion company in the 1930s.
Sponge iron isetal product that is produced byirect reduction of iron ore in solidstate. sponge iron isood alternative to waste and is mainly used in the manufacture of steel via secondary routes. the process of making sponge iron occurs by.
Sponge iron isroduct of the direct regeneration of iron ore pellets. in the immediate recovery operation, without the need for iron ore smelting, its oxygen is removed and its appearance becomes spherical sponge iron sludge, and the reason for naming it is the same spongy appearance of this product.
