| Engineering & Consultancy
We have provided engineering and consultancy services for more than 13.5 mTPA DRI production capacity plants in India (Which is more than 50% of India's total DRI production capacity) and additional 1.4 mTPA plants are under execution. We have proficiency in converting cement kilns for Sponge Iron production. All the plants designed by us ...
COMPRESSIVE STRENGTH AND DURABILITY …
The solid waste generated during this process is around 45 tonnes and out of which 25 tonnes is dolochar. The ... concrete using sponge iron scrap material as coarse …
Production and characterization of low-energy …
A belite-rich hydraulic clinker is produced using several post-industrial waste materials such as lime sludge waste, and sponge iron and low-grade clay using a large …
CPCB | Central Pollution Control Board
Iron Ore Mining-Comprehensive Industry Documentation: 13-08-2007: 5.31 : 149: Industrial Pollution: Assessment of Fugitive Emissions & Development of Environmental Guidelines for Control of Fugitive Emissions in Cement Manufacturing Industries: 06-07-2007: 4.35 : 150: Industrial Pollution: Sponge Iron Industry, Comprehensive Industry ...
Profitability analysis of power generation using waste heat of sponge …
The heat of waste gas can be utilized in various ways in the sponge iron process as suggested by many investigators. Bandyopadhyay et al. [3] found coal as principal raw material for the sponge iron process and if very high amount of volatile matter (VM) coal is used, majority of VM is lost through the kiln mouth with hot waste gases. …
COMPRESSIVE STRENGTH AND DURABILITY STUDIES …
The solid waste generated during this process is around 45 tonnes and out of which 25 tonnes is dolochar. The ... concrete using sponge iron scrap material as coarse aggregate is 1.5% higher than that of conventional crushed granite stone concrete. 4. Percentage weight loss, Percentage strength loss, Acid
Arsenic removal by iron oxide coated sponge: treatment and waste
There is a worldwide need to develop appropriate technologies to remove arsenic from water for and community water supply systems. In this study, a new material namely iron oxide coated sponge (IOCSp) was developed and used to remove arsenic (As) from contaminated groundwater in Vietnam.
ENERGY-EFFICIENT TECHNOLOGY OPTIONS FOR DIRECT …
3.0 Energy-efficient Technologies in Direct Reduction of Iron Process 17 3.1 Waste Heat Recovery for Power Generation 18 3.2 Iron Ore Preheating Rotary Kiln Using Waste Heat Recovery System 20 3.3 Coal Gasification for Partial Substitution in Rotary Kiln 22 ... The Sponge Iron Manufacturers Association (SIMA) acts as an apex body to promote and ...
WHRB in Sponge Iron Plant
TBWES is a pioneer in supplying waste heat recovery boilers for sponge iron plants and has over 184 installations to date. SUSTAINABLE SOLUTIONS IN ENERGY AND ENVIRONMENT Thermax Group is an INR 6,123 Cr. (876 million US$) company headquartered in Pune, India. ... non-ferrous metals, cement, refinery, chemical, oil & …
Profitability analysis of power generation using waste heat of sponge
For Option-1 8.97 MW power is generated using heat of waste gas, which gives payback period as 4.17 years. On the other hand, Option-2 consumes 37.4% and 4.7% less coal and water, respectively, in ...
The sponge effect and carbon emission mitigation …
The total CO 2 uptake consists of four sources: cement kiln dust generated from the production stage, construction waste, in-use cement stocks, and demolition …
Adsorptive removal of phosphorus from aqueous solution using sponge
Sponge iron and zeolite were obtained from Henan Gongyi Hualong Filter Factory, China. Sponge iron was composed of 95% Fe 2 O 3 and other oxides; the specific surface area was ⩾80 m 2 /g. While zeolite was composed of 5% Al 2 O 3 and 95% SiO 2, the specific surface area was 500–800 m 2 /g. The two adsorption substrates were …
Treatment of waste cutting fluid enhanced by …
and pH 8. The COD removal efficiency of sponge iron/Fenton oxidation reached 99.2%. The same removal efficiency was obtained when reusing the effluent under the experimental conditions when the dilution multiple exceeded threefold. The process is an efficient, environmentally friendly method for treating waste cutting fluids. Keywords:
Sponge Iron
Sponge Iron. Thermax is a pioneer in supplying waste heat recovery boilers for sponge iron plants and has over 150 installations to date. The boilers are designed to handle large amounts of dust from the flue gas generated in the rotary kilns. The steam generated from these boilers is typically used for power generation.
CARBON RECOVERY FROM SPONGE IRON PLANT DUST
8 likes • 5,162 views. RADE INITIATIVE. India is the world's largest Sponge Iron producer and mostly uses the Coal based process. The down-side of this industry is that it generates significant amounts of solid waste in the form of ESP Flyash and Bag House Filter Dust. Now as this Flyash contains considerable unburned carbon ( 10% and …
Properties of concrete using waste iron
At 28 days, the decrease varied from 19.62 % to 44.32 %. The decrease in compressive and flexural strength may be attributed to the strength of iron filings …
This cement replacement absorbs CO2 like a sponge
This cement replacement absorbs CO2 like a sponge. ... Ferrock is a material made from iron and several recycled products. "The whole process is green," Stone said. ... a waste material that ...
SPONGE IRON INDUSTRY
period, Orissa Sponge Iron Limited with a capacity of 0.1 MTPA, Ipitata Sponge Iron, capacity 0.09 MTPA and Sunflag Iron Steel Ltd4. The first gas based sponge iron plant, with a capacity of 1.52 MTPA, was set up by Essar Steel Limited in Hazira, Gujarat in 19905. Today, India has an installed capacity of 36.7 MTPA of sponge iron6. Leading ...
Characterization of dolochar wastes generated by the sponge iron …
Solid wastes generated by the metallurgical industry contribute significantly towards the enhancement of environmental pollution. The handling, utilization, and safe disposal of these solid wastes are major concerns for the world. Dolochar is such a solid waste generated by the sponge iron industry. Investigations were carried out on the …
HYDROGEN SULFIDE REMOVAL FROM BIOGAS Part …
Part 3A: Iron Sponge Basics November 2017 One of the oldest technologies for the removal of hydrogen sulfide (H 2 S) from gas is the use of "Iron Sponge". A chemical-physical process, originally developed to remove H 2 S from natural and coal gas streams, iron sponge has been in use for over 140 years and more recently to remove H 2
Transforming a Carbon Rich Metallurgical Residue from a Sponge Iron …
This paper explores the possibility to convert a metallurgical residue from a sponge iron production (MR) with approximately 20 wt% amorphous carbon into a hydraulic binder. ... Recycling of municipal solid waste for cement production: pilot-scale test for transforming incineration ash of solid waste into cement clinker. Resour Conserv …
UTILIZATION OF INDUSTRIAL WASTE IN CEMENT …
Abstract and Figures. The effective utilization of different industrial waste materials like ceramic waste, Fly Ash, Rice Husk Ash (RHA), silica fume, hypo sludge, …
Treatment of waste cutting fluid enhanced by combining …
The COD removal efficiency of sponge iron/Fenton oxidation reached 99.2%. The same removal efficiency was obtained when reusing the effluent under the experimental conditions when the dilution ...
Transforming a Carbon Rich Metallurgical Residue …
The MR was received in a powder form with d50 and d90 of about 74 µm and 252 µm, respectively. It consisted mainly of Ca, Si, Fe and Al in the form of … See more
Waste Heat Recovery Steam Generator in Sponge Iron …
In this sponge iron plant, a rotary kiln is used to manufacture iron billets by melting iron ore by coal. In this case lot of heat energy is required for iron plant. Waste flue gas emitted from this rotary kiln will be of temperature around 700° C and above. In temperature 700° C thus eliminating the need for an external fuel for super heat
cement from sponge iron waste
cement from sponge iron waste T22:11:00+00:00 Entrapment of chromium in cement with waste Cement matrix very often provides effective binders for immobilization of toxic heavy metals like chromium Here in this work, five different pastes were made from cement with waste material by using Portland cement and blended cements with slag, …
IRON AND STEELMAKING SLAGS: ARE THEY …
than 80%, slag composition is controlled by composition of sponge iron. In some countries, including Indonesia, steelmaking slag is categorized as hazardous and toxic waste.
Analyses of Different Modifications Proposed for the Sponge Iron …
Prasad et al. (2013) designed a gas carrying duct and rotary drier for utilization of waste heat in a sponge iron plant, which reduced the load on the kiln by 13.15% in comparison to the existing one to produce 1 tonne DRI. Coal-based sponge iron plants have very high average heat to power ratios, often in the range of 25:1 to 31:1 (Choudhury ...
Sponge iron's dirty growth
But the repeat offender— Rashmi Cement sponge iron plant—did not shut. Reason: the SPCB suspended the closure order, citing the appellate authority order that allowed the factory to operate once faults are rectified. On December 18 that year, angry people reportedly set fire to some structures and vehicles at the Rashmi Cement plant.
Sponge Iron – FirstEsco
Sponge Iron. Sponge iron kilns are energy intensive. 30% of the energy input to the kiln is lost to the atmosphere through flue gas. Many sponge iron plants with kiln capacity higher than 200 tons, the heat in the …