Sponge iron being magnetic gets attracted and gets separated from non- magnetic char. The iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in pre-determined ratio. The rotary kiln is slightly inclined at an angle 2.5 deg and rotated by

Looking forward to the need of developing coal-based sponge iron technology in India, a country having no significant resources of either coking coal or natural gas, the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975. In this pilot plant, a totally indigenous technology for production of

The inclination and the rotary motion of the kiln ensure that the raw materials move from the feed end to the discharge end of the kiln and during this movement the actual reduction of iron ore to iron takes place. The material discharged from the kiln is taken to a rotary cooler for cooling and the cooled product is separated from the coal char

Sep 10, 2020 In the newly designed sponge iron rotary kiln system, a coarse coal branch pipe and fine coal branch pipe are added at the kiln head. The original way of adding 100% coal at the kiln head is changed to 50-70% coal is added together with fine iron ore and dolomite through the mixing mode at the kiln tail, and the remaining 30-50% coal is added

kiln iron air rotary kiln sponge iron Prior art date 1952-09-26 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 US311593A Inventor Wienert Fritz Otto Original Assignee

Rotary Kiln with SL/RN Process. Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, and 500 TPD) Solid-state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI). Since DRI is produced by removing oxygen from

These kiln shells or kilns are widely used in the production of cement plants, metals industry, chemical industry, construction material industry, sponge iron, plants, refractories, petroleum coke, alumina, gypsum and other heavy industries. We design and manufacture all type of kiln

Feb 14, 2017 Normally for rotary kiln process volatile matter is to be in the range of 25 % to 30 %. Coals for direct reduction in the rotary kiln need to have low swelling index. Normally swelling index is to be less than 1. The physical and chemical specifications of the non-coking coal are as follows. Size of lumps – 5 mm to 20 mm

DRI-Rotary kiln process using mainly non-coking coal as solid reductant will be used. Captive power will be sourced from waste heat recovery boiler (WHRB) and Fluidized bed boiler (FBB). Steel melting shop (SMS) will involve ARC Furnace-IF with LRF & CCM/BF and re-rolling

2II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

Sponge iron kiln’s cylinder: The design of the sponge iron rotary kiln cylinder is more reasonable. The cylinder is rolled with a Q235-B steel plate to ensure five mechanical properties, usually with automatic welding. The wall thickness of the cylinder is generally 25 mm, and that of the firing zone is 32 mm

Data-1 includes temperatures profiles and air inlet at positions, AT-1 to AT-3 and MF-1 and MF-2, inside the kiln whereas, flow rates of iron ore, feed coal, slinger coal and sponge iron is

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

1) Iron ore Pellet Grate Kiln Technology 15.00 2) Sponge Iron Coal base Rotary Kiln 7.60 3) Iron ore Sinter Linear Sinter Machine 4.60 4) Pig Iron Blast Furnace 1.88 5) M S Billet 4.00 6) Re-rolling mill Hot Rolling 4.00 7) Captive Power Plant WHRB + FBC 106 MW 8) Oxygen Air Separation 210 M 3

Aug 07, 2021 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 Plant Manufacturers, Exporters, Suppliers in India. We, Surya Engineering Works – SEW GEARS – India. We are manufacturers, Suppliers and exporters of Kiln Girth Gear, Cooler Girth Gear, Kiln Support Rollers Assembly, Cooler Support Roller Assembly, Kiln Thrust Roller Assembly, Cooler Thrust Roller Assembly for Kiln Shell Rotary Drum Sponge Iron Plant

SITE SELECTION, PRE-FEASIBILITY, TECHNO-ECONOMIC FEASIBILITY REPORT (TEFR) & DETAIL PROJECT REPORTS Sl.No. Name of the Client Nature of Work 1 Virgo Cement Preparation of concept report for 1000 TPD Rotary kiln cement plant 2 Techno-inn Associate Preparation of bankable Techno Economic Feasibility Report (TEFR) For Setting Up 2000 TPD Cement Plant in Meghalya 3 Hill […]

The project involves setting up of Sponge Iron Plant (30,000 MTPA to 55,000 MTPA) with an investment of Rs. 111.6 million. Ore Pre-heater Technology will be adopted in the Sponge Iron manufacturing process in which another elevated rotary kiln (75 TPD) will be installed in line with production kiln and placed between main kiln & After Burning

pdfmodeling of rotary kiln for sponge iron processing. Continuous charging permits partial refining during melting stage as the particlepassesthrough the slag layer into the mixed layer. The firing mechanism ofRotaryKilnhas four basic components. 4.1.5. Internal heat exchangers: Heat exchange in arotarykilnmay be by