sponge iron production process

The HBI direct reduction process - voestalpine

Nov 03, 2016· The direct reduction process. HBI is the product of reducing iron ore with natural gas. This is called the direct reduction process and is an environmentally-friendly production process; a DRI plant uses natural gas which is more environmentally sound than coke. The reduction process takes place in the reduction tower.

SPONGE-IRON - Shakambhari Group

Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 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 & …

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 ...

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

following advantages sponge iron production is rising. Pelletized iron ore or natural "lump" ore are used in direct reduction process. Exceptionally in the fluidized bed …

DESIGN OF WASTE HEAT RECOVERY SYSTEM IN A …

process uses coking coal. The DRI process doesn‟t require coking coal and therefore is advantageous. In the present work waste heat recovery system is designed to integrate the heat of waste gas in the sponge iron process. For this purpose a case study of typical sponge iron production process is considered. The waste gas from a sponge iron ...

High Quality TMT Bar Manufacturing Process | Shyam Steel

Direct Reduced Iron Unit (D.R.I.): The sized iron-ore is tested for its Fe content and coal for its ash content and is then charged to D.R.I plant. The finished product of DRI plant i.e. sponge iron is then tested for its Fe content and chemical composition and is identified by day wise production.

iron briquette making process - YouTube

TCM BALER: Details of iron briquette making process, iron briquettes manufacturing process, sponge iron briquette making machine pre...

Energy Audit Methodology of Sponge Iron Manufacturing ...

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 iron plants ranges from (25:1) to (31:1). This shows that the manufacturing process mostly uses thermal energy and application of electrical energy is insignificant.

sponge iron sludge manufacturing process - Simurgh ...

Sponge iron is a product 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.. How to tell the purity of sponge iron sludge

SPONGE IRON INDUSTRY

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 …

Project Report on SPONGE IRON REDUCTION PLANT (STEEL ...

SPONGE IRON REDUCTION PLANT (STEEL BILLETS FROM IRON ORE) - Project Report - Manufacturing Process - Cost - Investment Required. Report includes feasibility report, profitability analysis, raw materials, break even points, formulations and formula and much more.

Sponge Iron Production Process - Arij Trading

Sponge iron production process discussed herein are selected from known methods of which the references are available and referable. We look at the 4 different methods of producing sponge iron: Midrex process. HYL process (4th generation) or Energiron. SL / RN process. Tunnel furnace process.

Sponge iron Manufacturing process - Simurgh Industrial and ...

Sponge iron is a metal product that is produced by a direct reduction of iron ore in solid-state. Sponge iron is a good alternative to waste and is mainly used in the manufacture of steel via secondary routes. The process of making sponge iron occurs by removing oxygen from the iron ore.

Powder Production Technologies - Powder Metallurgy Review

The sponge iron process. The longest established of these processes is the sponge iron process, the leading example of a family of processes involving solid state reduction of an oxide. In the process, selected magnetite (Fe3O4) ore is mixed with coke and lime and placed in a silicon carbide retort.

Agni Steels Sponge Iron Manufacturing Process - YouTube

Nov 02, 2017· Right from the selection of high grade iron ore and coal, we use only the finest raw material for production. Sponge Iron (DRI) is the main constituent in pr...

(PDF) New Concept of Hot Metal Production using Rotary ...

[Show full abstract] technology for production of sponge iron in Indonesia due to direct utilization of bituminous coal. Besides rotary kiln based process, some blast furnaces are also installed ...

Sponge iron Manufacturing process - Simurgh Industrial and ...

Sponge iron is a metal product that is produced by a direct reduction of iron ore in solid-state. Sponge iron is a good alternative to waste and is mainly used in the manufacture of steel via secondary routes. The process of making sponge iron occurs by …

CASE STUDY ON THRESHOLD PROBLEM Sponge Iron …

Sponge Iron Production Process Process description This is the case study of typical coal based sponge iron plant of 500 tonne per day capacity. The process flow diagram (PFD) of the sponge iron process is shown in Fig. 1. Different streams in the PFD are …

US3212876A - Method for the production of iron powder from ...

iron production sponge iron powder Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US275794A Inventor Hulthen Sven Ingvar Wahlberg Yngve

Sponge iron reaction - Wikipedia

The sponge iron reaction (SIR) is a chemical process based on redox cycling of an iron-based contact mass, the first cycle is a conversion step between iron metal (Fe) and wuestite (FeO), the second cycle is a conversion step between wuestite (FeO) and magnetite (Fe 3 O 4). In application, the SIT is used in the reformer sponge iron cycle (RESC) in combination with a steam reforming unit.

PRODUCTION OF IRON AND STEEL POWDERS

2. PRODUCTION OF IRON AND STEEL POWDERS 8 2.3 The Höganäs Sponge Iron Process The Höganäs sponge iron process, is essentially a chemical process in which finely divided iron ore is being reduced with coke breeze yielding a spongy mass of solid metallic iron, which can readily be comminuted to iron powder. The iron ore used at

Sponge Iron - an overview | ScienceDirect Topics

Four sponge iron (SI1, SI2, SI3, and SI4) plants with different installed capacity and sponge iron (SI) production have been considered for studies based on the baseline methodology. Figure 3.3.18 shows the annual SI production across sample plants. The production varies from 0.06 (SI1) to 0.2 Mt (SI4).

Production Process - Grace

Production Process Ingots To manufacture Mild Steel Ingots the company purchase M.S. Scrap from open market, imported Scrap from actual importer, Sponge Iron from the manufacturers and these materials, once reach the plant the quality is tested and after getting satisfied, unload the material in …

Sponge Iron | Iron | Steelmaking

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 …

Sponge Iron Manufacturer India

The Sponge Iron Manufacturers Association (SIMA) established in 1992 is an all India apex body of Indian sponge iron industry. It is the voice of the indian iron ore based sponge iron & steel industry, at both domestic and global forums. As a not-for-profit society, SIMA has been mandated to communicate the viewpoints of its constituents & al ...

Sponge iron production process and plant - Voest-Alpine ...

Sponge iron production process and plant . United States Patent 5997609 . Abstract: In a process for producing sponge iron from particulate iron oxide-containing material, the iron oxide-containing material in a reduction zone is reduced to sponge iron by means of reducing gas and the gas forming during reduction is withdrawn as top gas. ...