prcess critical parameters for sponge iron kiln - BINQ

2012-12-12  critical parameters of sponge iron process – Grinding Mill China sponge iron process . The alignment of coal injection in the kiln is very critical to with particular reference to control of important process parameters

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sponge iron process

2010-7-29  The important constituents determining the quality of sponge iron are the Fe total, Fe metallic , sulphur, phosphorous, carbon and gangue content. Fe total: The Fe total content in sponge iron purely depends on Fe con tent in iron ore and the degree of reduction achieved in the process.

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Environmental Control Measures in Sponge Iron Industry ...

2012-1-3  necessary energy for the reduction process. Iron ore is converted into sponge iron in solid state condition, during the processing following are the generation of waste and dust : Waste gases containing minute dust particles. Non magnetics usually referred to as char. Dust generation during handling of raw materials and product in the circuits.

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Environmental application of millimetre-scale sponge

2017-2-5  In the s-Fe 0 based photo-Fenton-like process, solution pH functions as one of critical parameters, determining the extent of iron leaching and the progress and mechanism of photo-Fenton-like

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sponge iron process

2011-8-3  During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality. Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln. Generally the length of reduction zone is 60-70% of total kiln length.

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Mathematical Modeling of the Melting of Sponge Iron

If the bath is well agitated, particle melting can be improved dramatically compared to the melting rate in a quiescent bath. This section provides an analysis on how these parameters affect the melting kinetics of sponge iron. Initial temperature of sponge iron and slag bath. The effect DRI pellet initial temperature can be seen in Fig. 12.

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Iron metabolic pathways in the processes of sponge

2020-2-21  Translation of mRNA for proteins of iron metabolism in animal cells is under control of the master regulators, iron-regulatory proteins 1 and 2 (IRP1 and IRP2) that sense the iron concentration and regulate mRNA translation by binding to the IRE (iron-responsive element) sequences located usually in the untranslated regions (UTR) of mRNA . The sponge cells contain only a homolog of IRP1.

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PROCESS FOR PRODUCTION OF SPONGE IRON -

Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a solid reducing agent by means of oxygen containing gases through an inlet pipe, and said solid reducing ...

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(PDF) Modeling of Rotary Kiln for Sponge Iron

523-1 Designing of an Intelligent Fuzzy Logic System for Accretion Prevention in Sponge Iron SL/RN Rotary Kiln Based 100TPD Dri Process By Tawanda Mushiri and talon garikayi Industrial and Process Furnaces: Principles, Design and Operation

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Investigation of ductile iron casting process parameters ...

2017-8-23  casting parameters such as pouring temperature, inoculation, carbon equivalent, moisture content, green compression strength, permeability and mould hardness were selected. Three different melts of metal with 0.4wt.%,

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Optimization of Operating Parameters for Sponge

In the present study, estimation of optimum input parameters corresponds to desired values of output parameters is carried out for a sponge iron production process. For this purpose two different data sets, Data-1 and Data-2, are collected from a typical sponge iron plant, which correlate the input and output parameters. Data-1 includes temperatures profiles and air inlet at positions, AT-1 to ...

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sponge iron process

2011-8-3  During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality. Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln. Generally the length of reduction zone is 60-70% of total kiln length.

More

Environmental Control Measures in Sponge Iron Industry ...

2012-1-3  Environmental Contra!Measures in Sponge Iron Indust} with Particular Reference to Tata Sponge Iron Limited Fig. 5 : Sponge iron production in India (million tonnes) (Data Source : Tata Sponge Iron Limited has the distinction of being one of the early players in sponge iron industry. As such it was the first commercial plant based on indigenous

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PROCESS FOR PRODUCTION OF SPONGE IRON -

Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a solid reducing agent by means of oxygen containing gases through an inlet pipe, and said solid reducing ...

More

Environmental application of millimetre-scale sponge

2017-2-5  In this study, we firstly develop the photo-Fenton-like system with millimetric sponge iron (s-Fe 0), H 2 O 2, visible light (vis, λ ≥ 420 nm) and rhodamine B (RhB), and present a comprehensive study concerning the mechanism. Thus, we investigate (1) the adsorption of RhB onto s-Fe 0, (2) the photo-Fenton-like removal of RhB over iron oxides generated from the corrosion of s-Fe 0, (3) the ...

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Mathematical Modeling of the Melting of Sponge Iron

Feeding sponge iron pellets with high porosity represents more energy expenses to melt the particles because this type of pellets hardly touch the steel bath affecting the process efficiency, since a higher power in the electrodes is needed to remelt the slag shells and

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(PDF) Modeling of Rotary Kiln for Sponge Iron

Modeling of Rotary Kiln for Sponge Iron Processing Using CFD package (ANSYS 13.0) A Thesis Submitted for Partial Fulfillment of the Degree Award Of MASTER OF TECHNOLOGY In CHEMICAL ENGINEERING Under the supervision of

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Investigation of ductile iron casting process parameters ...

2017-8-23  settings of the process parameters were determined by using Taguchi’s experimental design method [21-23]. In order to optimize the sand casting process parameters of the castings manufactured in an iron foundry, the Taguchi method was used to maximize the S/N ratios and minimize the noise factors. Response Surface

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Optimisation of Process Parameters in Turning of Grey

2014-12-14  machining process parameters in machining grey cast iron with mixed-oxide ceramic tool using Taguchi’s OA. Two level of each parameter (speed, feed and depth of cut) were used for optimisation. Taguchi’s L 8 is used to obtain an optimal setting of turning process parameters to yield optimal values of surface roughness,

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sponge iron process

2011-8-3  During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality. Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln. Generally the length of reduction zone is 60-70% of total kiln length.

More

SPONGE IRON INDUSTRY

2020-5-1  India is the world’s largest producer of sponge iron, accounting for 13 per cent of the global production 8. Sponge iron is produced using either coal or natural gas. Since coal is available in India, the sector largely depends on coal based sponge iron which contributes about 80 per cent of the total capacity in the country9.

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Low-Carbon Production of Iron Steel: Technology

2021-3-8  DRI converts raw iron ore to sponge iron, a porous, permeable, and highly reactive product that requires treatment with EAF before selling to market. One of the well known hard-to-abate sectors, substantial iron and steel industry decarbonization will increase

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Optimisation of Process Parameters in Turning of Grey

2014-12-14  machining process parameters in machining grey cast iron with mixed-oxide ceramic tool using Taguchi’s OA. Two level of each parameter (speed, feed and depth of cut) were used for optimisation. Taguchi’s L 8 is used to obtain an optimal setting of turning process parameters to yield optimal values of surface roughness,

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MIDREX Processes - KOBELCO

2011-1-6  The process reduces iron ore using a reforming gas made from natural gas. The DRI is used mainly as the raw material for electric arc furnaces (EAFs), as a clean iron source substitute for scrap iron. Pores are left behind in the DRI after oxygen has been removed. These pores, if filled with water, for example, can cause the iron to reoxidize with

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INVESTIGATION OF DUCTILE IRON IN MOLD

2015-3-3  Ductile iron was first developed in 1943 and it is widely used in automotive industry. The difference between cast iron and ductile iron is due to the presence of spheroid graphite in the matrix of ductile iron which is not found in brittle cast iron. Ductile iron possesses higher ductility and tensile strength than in cast iron.

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Modelling and optimization of a rotary kiln direct ...

2014-8-5  In the case of a generic iron-ore reduction kiln, Table I provides an overview of the parameters (and ranges) that are considered. Table I. Model inputs used in the evaluation of kiln performance Design parameters Values Kiln internal diameter 4.34 m Kiln length 80

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Low-carbon production of iron and steel: Technology ...

2021-3-9  EAF also consumes the products of DRI, also referred as sponge iron. DRI is as pure as pig iron and is an ideal feedstock to EAF efficiency gains. As a feedstock, EAF can take any fraction of sponge iron (from 0% to 100%). The DRI-EAF combination allows for higher electrification and lower emission if low-carbon feedstocks and electricity are used.

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Emerging Technologies for Iron and Steelmaking

The IFCON process, developed by ISCOR in South Africa, is capable of producing steel directly from coal and iron ore. 1 In this process, coal and ore are added continuously to a channel type induction furnace containing a slag-metal bath. Electrical energy is supplied by

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