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Energy Audit Methodology of Sponge Iron Manufacturing ...

2014-10-14 · Conducting complete energy audit (both process and utility) of a sponge iron unit is challenging as there is no laid down procedure to audit the process side. Further, the average heat to power ratio (kW th /kW e ) of sponge …

Soybean Oil Processing; Quality Criteria and Flavor …

2017-7-24 · Critical parameters to be controlled in a good quality refining process (4) ♦ Oil quality at entry of bleaching step: phosphorus < 5 ppm P soap < 50ppm ♦ Avoid all contact with air during filtration at high temperature ♦ Oil quality at entry of deodorization step: phosphorus (ppm P) < 3 ppm iron (ppb Fe) < 150 ppb phosphoric acid 0

Low-Carbon Production of Iron & Steel: Technology …

2021-3-8 · The Al Reyadah [(CSLForum, 2020)][ (Sakaria, 2017)] plant uses SMR for syngas production and then feed it as reducing gas to a HYL DRI plant for sponge iron production. The off-gas from the process consists of CO2 and H2O, which is the source of capture for CCS facility.

Iron metabolic pathways in the processes of sponge ...

2020-2-21 · The RNA-Seq analysis revealed changes in the expression of iron metabolic factors during the sponge body dissociation followed by cells reaggregation into multicellular aggregates. This result suggests a requirement for regulation of iron metabolism during sponge morphogenesis and indicates an important role of iron metabolic factors in plasticity.

Mathematical Modeling of the Melting of Sponge Iron in …

consumption in the process. The study revealed that the convective heat transfer coefficient between the metal bath and the particle is an important parameter because if this value is increased, the melting time and the thickness of slag shell are drastically decreased. KEY WORDS: sponge iron; Electric Arc Furnace; melting time. cal properties.

Sponge iron Manufacturing process

Sponge Iron - an overview | ScienceDirect Topics

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 the induction furnace for heating and stirring the bath.

MIDREX Processes

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

Sponge Iron

DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants (CO + H ...

prcess critical parameters for sponge iron kiln

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 …

Mathematical Modeling of the Melting of Sponge Iron in a ...

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 prevent a decrement in the bath temperature.

Effluent and Emission Standards for Sponge Iron Plant

2021-8-7 · The location of Sponge Iron Plant should be at least 500 m away from National Highway and State Highway. The radial distance between two Sponge Iron Plants should be 5 km for plants having capacity 1000 TPD or more. Sponge Iron Plants can be established in designated industrial areas/Estates as notified by State Government.

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.

Study of Phosphorus Removal by Using Sponge Iron ...

2018-5-4 · The phosphorus removal mechanism was verified by the kinetics and thermodynamics results, which was the synergistic combination of surface adsorption and chemical adsorption. In addition, the Mg ...

Study of Phosphorus Removal by Using Sponge Iron ...

2018-5-4 · Phosphorus is one of the key elements causing lake eutrophication. This paper deals with phosphate removal by Sponge iron in batch and fixed-bed operation. Isotherm and kinetic studies are conducted. The isotherm data is described by the Freundlich and Langmuir model, while the kinetic data of adsorption is fitted by the pseudo-second-order kinetic model. The …

A Thesis Submitted for Partial Fulfillment of the Degree ...

2012-5-29 · Exceptionally in the fluidized bed process sized iron ore particles are used. Few selected ores are suitable for direct reduction process. Sponge iron is produced in a powdered form so, it acts as a good raw material that can very well mixed with other metals in the production of different types of iron-based or Ferro alleys.

Iron metabolic pathways in the processes of sponge …

2020-2-21 · The ability to regulate oxygen consumption evolved in ancestral animals and is intrinsically linked to iron metabolism. The iron pathways have been intensively studied in mammals, whereas data on distant invertebrates are limited. Sea sponges represent the oldest animal phylum and have unique structural plasticity and capacity to reaggregate after …

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 …

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

Energy Audit Methodology of Sponge Iron Manufacturing ...

2014-10-14 · Conducting complete energy audit (both process and utility) of a sponge iron unit is challenging as there is no laid down procedure to audit the …

Sponge Iron

MANUFACTURING PROCESS. In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a stipulated temperature ( 850 °C – 1050°C).

Environmental application of millimetre-scale sponge iron ...

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 …

2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

2D CFD model of rotary kiln of sponge iron process is developed to study the effects of angle of inclination, number of rotation and mass flow rate of iron ore on output parameters.

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.

Simulation of Rotary Kiln Used in Sponge Iron Process ...

2015-2-15 · Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN IACSIT International Journal of Engineering and Technology, Vol. 6, No. 2, April 2014 DOI: 10.7763/IJET.2014.V6.673 95 Abstract—In the present study, estimation of actual output parameters is carried out for a sponge iron production process

(PDF) Modeling of Rotary Kiln for Sponge Iron Processing ...

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

Development of indigenous technology for production …

2019-4-9 · various process parameters of sponge production have been thoroughly studied (Subramanyam et al 1990). Typical process parameters found optimal are presented in table 2. Figure 2 is a 2000 kg sponge cake produced in one of the experimental runs. Table 3 presents typical analysis of titanium sponge produced in the facility. 6.

Identifying the critical moulding machine parameters ...

Since there are many process parameters involved in an injection moulding process, identification of the critical parameters are very important. Simple techniques like the "Seven Basic Quality Control Tools (7 QC Tools)" can provide a very valuable and cost effective way to meet these objectives. This paper presents a case study for ...

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,

Vol. 5, Issue 5, May 2016 A Study on Minimization of ...

2020-12-1 · parameters like melting of the metals, alloy agents, pouring temperature, pouring process and pouring time, impurities present in the ladle, etc. Finally conclude the optimized parameters with minimum casting defects with economic impact of the critical manufacturing operations related to some specific case studies and possible goals

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 m Kiln inclination 1.5° Solids angle of repose 31°