With 100 mt kiln per day for sponge iron what waste heat recovery boiler is used

Nalwa Sponge Iron Limited (NSIL) has implemented Waste Heat Recovery (WHR) based Power Project at their sponge iron plant. The NSIL sponge iron plant has 6 rotary kilns of 100 tonnes per day (tpd) capacity each for sponge iron production at Raigarh in Chhattisgarh state. Operation of

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  • ENERGY-EFFICIENT TECHNOLOGY OPTIONS FOR DIRECT
    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

  • Waste Heat Based 7MW Captive Power Project - Home
    Waste Heat Based 7MW Captive Power Project - Home

    The project comprises of a Waste Heat Recovery Boiler (WHRB) and two Steam Turbo Generators with necessary accessories for transfer of Sponge Iron Kiln flue gases and steam. The unit is presently generating around 24 million kWh [or million units] per annum

  • RAIPUR POWER GEN
    RAIPUR POWER GEN

    Oct 30, 2012 Raipur Power Gen has developed a New concept of WHRB( Waste Heat Recovery Boiler) from sponge Iron Kiln. In General Sponge Iron Kiln we have for example 100tpd( tones per day ) that generates 24,000 cum/hr hot gases at 950degC to be used for WHRB to produce steam of 10 tph (tones per hour ) , 64ata, 485degC with each boiler attached with 100

  • Waste Heat Recovery in Cement plant - IJERT
    Waste Heat Recovery in Cement plant - IJERT

    Waste Heat Recovery in Cement plant 1 S. Nivethidha Priyadarshini , D. B. Sivakumar 2 ... The production capacity is 3018 tonne per . day. It is the pyroprocessing unit that includes the . preheater, the Calciners, the kiln and the clinker ... the waste heat recovery boiler. Water is

  • 2-1 Recausticizing - Principles and Practice
    2-1 Recausticizing - Principles and Practice

    recovery boiler operators, however the smelt dissolving tank is an important part of the overall recausticizing flowsheet. The following is a brief description of each process step starting from the smelt dissolving tank. Smelt Dissolving Tank Molten smelt from the floor of the recovery boiler is dissolved in weak wash to produce green liquor. This

  • FURNACES AND REFRACTORIES - Modern Eq
    FURNACES AND REFRACTORIES - Modern Eq

    Mode of waste heat recovery Recuperative Regenerative 2.1.1 Forging furnace2 The forging furnace is used for preheating billets and ingots to attain a ‘forge’ temperature. The furnace temperature is maintained at around 1200 to 1250 oC. Forging furnaces use an open fireplace system and most of the heat is transmitted by radiation

  • Extracting More Sponge Iron Is Imperative To Boost Steel
    Extracting More Sponge Iron Is Imperative To Boost Steel

    Sep 29, 2019 The total capacity is reported to be about 11MT of sponge iron; in Chhattisgarh 4.5 MT, followed by 2.2 MT in Odisha and 1.6 MT in West Bengal. In India, most of the sponge iron producers do not have captive mines of any of the raw materials like hematite, non-coking coal and limestone, which are used for sponge iron production

  • Iron and Steel Making Machines - Induction Melting
    Iron and Steel Making Machines - Induction Melting

    These pellets are then used for making sponge iron. Rotary kilns have a drawback upon the size and quality of iron ore that can be used. Initially, when the process was first introduced, the ore with an iron content /= 65% was preferred and the preferred size of ore was 5-18mm

  • (PDF) Waste Heat Recovery in Turkish Cement Industry
    (PDF) Waste Heat Recovery in Turkish Cement Industry

    Mar 08, 2019 Waste Heat Recovery in Turkish Cement Industry Review of Existing Installations and Assessment of Remaining Potential March 2019 DOI:

  • Rotary Kiln Incinerator - an overview | ScienceDirect Topics
    Rotary Kiln Incinerator - an overview | ScienceDirect Topics

    Flue gases will heat the water to be used in heat production – The boiler efficiency can reach 80 % (i.e., thermal and overall recovery) – Higher temperature of water (above 160 C) can be achieved with manipulating operational pressure of the unit – Flue gases will produce steam in the temperature range of 120–250 C and a pressure

  • Vaswani Industries: Reports, Company History, Directors
    Vaswani Industries: Reports, Company History, Directors

    Presently, the company is manufacturing Coal–based Sponge Iron using 3 indigenously developed rotary kilns, with a capacity of 90000 M.T. (3 X 100 MT) along with a Waste Heat Recovery Boiler

  • Recovery and utilization of waste heat in a coal based
    Recovery and utilization of waste heat in a coal based

    this case the hot sponge iron is used to heat water up to 95 C and further preheating of air is carried out using hot water. The proposed design is shown through following two cases: (a) heat recovery and (b) heat utilization. 3.2.1. Case-2(a) – heat recovery The kiln discharge at 1020 C is passed into a rotary cooler in such loss

  • RAIPUR POWER GEN: New Concept of Waste Heat
    RAIPUR POWER GEN: New Concept of Waste Heat

    Jan 07, 2009 Raipur Power Gen has developed a New concept of WHRB ( Waste Heat Recovery Boiler) from sponge Iron Kiln. In General Sponge Iron Kiln we have for example 100tpd ( tones per day ) that generates 24,000 cum/hr hot gases at 950degC to be used for WHRB to produce steam of 10 tph (tones per hour ) , 64ata, 485degC with each boiler attached with 100 tpd Sponge Iron Kiln

  • Recovery and utilization of waste heat in a coal
    Recovery and utilization of waste heat in a coal

    Jun 01, 2012 However, for second modification initially water is heated using hot sponge iron exiting the rotary kiln and then hot water is used to preheat the kiln air. These modifications are discussed below in detail. 3.1. Case-1. In this case waste gas available at 220 C is used to heat kiln air up to 170 C. In fact, in real situation kiln air is preheated inside the rotary kiln by burning of coal in the

  • Characterization of dolochar waste generated by
    Characterization of dolochar waste generated by

    A representative sponge iron industry with 100 tons (t) per day capacity produces 25 t per day dolochar, thereby, producing 9000 t waste material per annum (Dwari et al., 2012; Panda et al., 2011

  • Tariff Determination of the Waste Heat Recovery Power
    Tariff Determination of the Waste Heat Recovery Power

    waste heat from sponge iron kiln operation. The heat from flue gases is tapped for steam generation using three WHR boilers. Since the steam generation from flue gases varies with sponge iron production, an Atmospheric Fluidised Bed Combustion (AFBC) boiler of 25 Tonnes per Hour (TPH) was installed to supplement any shortfall of steam and to ensure

  • Energy Conservation
    Energy Conservation

    Sponge iron inlet temperature = 1000 Deg C Sponge Iron Outlet Temp = 120 Deg C Thermal Energy = 1260.5 KwTh ORC Recovery = 138.5 Kwe Net Power = 125 Kwe Power Plant Capacity = 130 Kw Water Inlet Temperature = 90 deg C Water outlet Temperature = 145 Deg C Total energy Saving = 2550 units per day Energy Saving from ORC considering 330 Days of operation

  • Estimation of waste heat and its recovery potential
    Estimation of waste heat and its recovery potential

    Aug 30, 2020 Abstract The recovery and reuse of waste heat offers a significant opportunity for any country to reduce its overall primary energy usage. Reuse of waste heat improves the ambient air quality by reducing both industrial pollution and greenhouse gas emissions from industries. This paper presents an estimation of thermal waste heat potential in five energy-intensive industrial sectors (i.e

  • Waste Heat Recovery System - an overview
    Waste Heat Recovery System - an overview

    2.1. The first step in planning to install a waste heat recovery system (WHRS) is to work out the net available waste heat that can be used to generate power. 2.1.1. In a cement plant, waste heat is available mainly from kiln exhaust gases and vent air from the clinker cooler

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