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coke injection in to slag cleaning

coke injection in to slag cleaning

  • coke injection in to slag cleaning----

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    Coke Revert injection in Slag Cleaning Furnace National Conference on Non Ferrus metal July 8, 2016 Maintain required bulk density of coke revert briquettes and inject in slag cleaning Furnace such... Title: President COO in Aditya Birla Efficient Recovery of Copper and Cobalt from the Matte

  • coke injection in to slag cleaning - kosmetika-most.cz

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    coke injection in to slag cleaning The slag cleaning technology is a batch process consisting in the reduction of magnetite Fe304 by adding a reductor agent In Caletones powder coal pneumatically transported by air is injected into the smelted slag bath in the furnace

  • Coke Injection In To Slag Cleaning

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    coke injection in to slag cleaning . coke injection in to slag cleaning. Cleaning Melting Gold Precipitate. The first batch of slag removed was low grade and free from metallics, but the thickened slag had to be remelted and the thickening agent, being clean quartz, instead of bone ash, was easily fluxed with a little soda.

  • Intelligent sensor for coal powder rate injection in a ...

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    01/07/2000  Intelligent sensor for coal powder rate injection in slag cleaning furnace 779 During the vessel discharge, the operator tries to maintain the coke flowrate by manipulating the set point of the pressure controller on the nitrogen line. Sometimes the blow valve is used to reverse the coke compactness in the lower part of the cone. To optimise this technology and consolidate this process,

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  • Slag cleaning in crossed electric and magnetic fields ...

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    01/01/2007  Slags from smelting of copper concentrate contains from 2% to 20% of copper and are directed to slag cleaning operation carry out in electric furnaces or other slag cleaning reactors with injection of carboneous reductant. Ionic structure of liquid slags points out the possibilities of utilization of slag electrolysis in reduction of magnetite and precipitation of dissolved copper as well as ...

  • (PDF) Slag-Coke Interactions in the Lead Blast Furnace

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    The flow of slag in the lower zone of the ironmaking blast furnace was experimentally simulated by adding slag to a high temperature laboratory scale coke packed bed.

  • (PDF) Intensification of Processes in the Non Ferrous ...

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    For the coke injection into liquid slags an injection lance of SiC-strengthened graphite is used. First trials have been conducted in a water model and in the pilot scale EAF of IME. The wa-ter ...

  • INJECTION OF PULVERIZED MATERIALS INTO THE BLAST

    injection and replacement ratio for coke is the selected PC type for injection. The volatile matter (VM) content as well as ash composition and amount is important factors. From economical point of view flexibility in the use of different types of PC is important and alternative coals have to be considered constantly. In early nineties injection trials with basic fluxes, sinter fines and iron ...

  • Efficient Recovery of Copper and Cobalt from the

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    The optimum slag cleaning conditions were found to be: a coke dosage of 2 pct, a pyrite dosage of 2 pct, and a smelting temperature of 1260 °C lasting for 2 hours. In order to improve on the low utilization ratio of additives associated with the industrial sedimentation process, an innovative additive introducing method was put forward which enables the additives to mix and react with slag ...

  • Carbon Injection into Electric Arc Furnace Slags

    2.1 Carbon Injection into EAF slags In modern EAF steelmaking, carbon in the form of coke, char or coal, is injected into the furnace and reacts with slags (FeO/Fe 2O 3, CaO, MgO etc.) and post-combustion gas (CO 2). Those reactions produce gas, which causes the slag

  • Coke Injection In To Slag Cleaning

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    coke injection in to slag cleaning . coke injection in to slag cleaning. Cleaning Melting Gold Precipitate. The first batch of slag removed was low grade and free from metallics, but the thickened slag had to be remelted and the thickening agent, being clean quartz, instead of bone ash, was easily fluxed with a little soda.

  • 1995 The forming of foaming slag in electric arc furnace ...

    by injection of coke breeze and rearrangement of melting procedure Kuswanto Atmosumarto University of Wollongong Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library: [email protected] Recommended Citation Atmosumarto, Kuswanto, The forming of foaming slag in electric arc furnace by injection

  • SAFETY GUIDELINES FOR IRON STEEL SECTOR BLAST FURNACE

    cleaning at Gas Cleaning Plant) before transporting it to the BFG Holder Flare Stack after internal consumption. vi) Slag Granulation Plant (SGP) / Slag Dumping Yard: During the process of iron making, the impurities are fluxed and removed as slag. The hot liquid slag is made into slag granules by means of high

  • Efficient Recovery of Copper and Cobalt from the

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    A powder injection device was purpose-made to inject additives into molten slag in dispersion state, and a laboratory experiment was carried out to simulate this process. By injecting 2 pct coke and 2 pct pyrite, the contents of Cu and Co in cleaned slag decreased to 0.46 and 0.01 pct, respectively. It proves that the injection of additives ...

  • Factors affecting Coke rate in a Blast Furnace –

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    High ash content in BF coke means charging the blast furnace with more slag forming material which is to be fluxed to form slag. This results into higher slag volumes. As per thumb rule 1 % reduction in the ash content of the BF coke results into decrease in coke rate by 1 % to 1.5 %. Other properties of the BF coke which affects the coke rate are CSR, CRI, and micum

  • EAF Fundamentals: Charging, melting and refining

    • Foamy slag practice and carbon/lime injection • Post combustion in the EAF freeboard • EAF bath stirring • Modified electrical supply (series reactors etc.) • Current conducting electrode arms • DC furnace technology • Innovative process technologies (scrap preheat, continuous charging etc.) Most of the productivity gain achieved over the past 10-15 years was related to the ...

  • RECYCLING OF FLUE DUST INTO THE BLAST FURNACE

    In addition to coke fines, the flue dust also contains fines generated from BOF slag, limestone and pellets, and as a result it contains basic oxides such as CaO and MgOas well as a considerably high amount of Fe 2O 3. In several studies on injection of fluxes and iron ore, the effect on hot metal composition has been considered. Tuyere ...

  • Reduction of Waste Smelter Slags using Top-Submerged ...

    slag cleaning processes38, with one of the most effective methods being the injection of gaseous or solid reductants into the molten slag bath. During the injection, the reduction kinetics are improved significantly by the intense mixing of the reductants with the slag and the increased rates of heat and mass transfer910_ Such injections may be

  • Blast Furnace: Most Efficient Technologies for

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    Improved recovery of BF gases and NG injection are compared to traditional BF operations. The employment of fuels alternative to coke is demonstrated to be fundamental in reducing GHGs emissions. Plastic waste injection, biomass utilization, as well as carbon composite agglomerate employment are shown basing on the last scientific evidences ...

  • Cleaning Dirty or Clogged Fuel Injectors - DIY

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    So as a follow up from my last video on how to test fuel injectors, here is a video on how to clean fuel injectors yourself. Whether you want to clean clogge...

  • india coke injection in to slag cleaning – Grinding

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    india coke injection in to slag cleaning [ 4.9 - 5988 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the continual introduction and updating of products. Related Posts » grinders baron » Amrita Wet Grinder Price » centery ...

  • Efficient Recovery of Copper and Cobalt from the

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    A powder injection device was purpose-made to inject additives into molten slag in dispersion state, and a laboratory experiment was carried out to simulate this process. By injecting 2 pct coke and 2 pct pyrite, the contents of Cu and Co in cleaned slag decreased to 0.46 and 0.01 pct, respectively. It proves that the injection of additives ...

  • Coke Oven Gas Injection at Rogesa Blast Furnace

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    Paul Wurth’s particular responsibility was to have ready injection lines and coke oven gas supply for half the number of all the 32 tuyeres of this furnace. This being fulfilled, Rogesa and Paul Wurth started the application of the new technology for four injection lines. The operation with coke oven gas followed a jointly developed start-up procedure and was executed by trained personnel of ...

  • Influence of slag composition on reduction control and ...

    batch is calculated using a coke-addition model, which takes into account the percentage of copper in the slag, the degree of copper reduction required, and the amount of slag received. Figure 1 shows the degree of control of SCF operations with respect to copper in slag. 187 Figure 1: Control of copper in SCF slag within the desired range Best control achieved was in April 2010, with 53.4% of ...

  • flux coke floating return fines and calcined lime

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    flux coke floating return fines and calcined lime which is fed into Blast from AE 636 at De Paul

  • Product Portfolio Paul Wurth IHI Co., Ltd.

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    Paul Wurth IHI Co., Ltd.'s official website. Iron-Making Technologies, Coke-Making Technologies, Agglomeration Plants, Oil Gas Technologies, Customer Support Services. Introduction of Corporate, Product information.

  • Clean Coal Technology - Blast Furnace Granular Coal ...

    the injection of granular coal into a large blast furnace works very well and can reduce coke requirements on almost a pound-for-pound basis. The higher blast furnace sulfur load and slag volume resulting from coal in-jection did not cause any operating prob-lems. The chemistry of the furnace slag can be adjusted, without harm to overall

  • Substitution of Coke and Energy Saving In Blast Furnaces ...

    oxygen injection into the stream of HRG near the tuyere tip is presented in Figure 3. This tuyere design was also successfully tested during the trials of reactor-gasificator. The injection of the HRG into the tuyere raceway leads to the change in their operation. Because of absence of oxidizers in the HRG coke is not consumed and there is no gradient of coke velocity in the coke packing. As a ...

  • Blast Furnace: Most Efficient Technologies for

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    Improved recovery of BF gases and NG injection are compared to traditional BF operations. The employment of fuels alternative to coke is demonstrated to be fundamental in reducing GHGs emissions. Plastic waste injection, biomass utilization, as well as carbon composite agglomerate employment are shown basing on the last scientific evidences ...

  • Recovery of cobalt, nickel, and copper from slags,

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    In the slag-cleaning process considered here, the furnace would be operated with a layer of electrically conductive coke or coal covering the slag. As the electrodes of the AC furnace penetrate this layer, there exists the possibility of the current flowing between the electrodes on the surface of the slag. This inter-electrode conduction not only reduces the energy dissipated in the slag ...

  • Coke Injection In To Slag Cleaning

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    coke injection in to slag cleaning . coke injection in to slag cleaning. Cleaning Melting Gold Precipitate. The first batch of slag removed was low grade and free from metallics, but the thickened slag had to be remelted and the thickening agent, being clean quartz, instead of bone ash, was easily fluxed with a little soda.

  • EAF Fundamentals: Charging, melting and refining

    • Foamy slag practice and carbon/lime injection • Post combustion in the EAF freeboard • EAF bath stirring • Modified electrical supply (series reactors etc.) • Current conducting electrode arms • DC furnace technology • Innovative process technologies (scrap preheat, continuous charging etc.) Most of the productivity gain achieved over the past 10-15 years was related to the ...

  • Injection of slag correction components into the

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    Injection trials have shown a somewhat better sulphur distribution between slag and hot metal when using MgO-C refractory fines. Although the injection of ground HM desulphurisation slag leads to a raised input, the desulphurisation of the HM is increased more. Injection of titanium oxide into the hearth results in increased Ti distribution between HM and slag.

  • US20100006014A1 - Targeted reagent injection

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    Disclosed is a process that increases the output of a combustor fired with coal having high iron and/or calcium content, by reducing the tendency of slag to form on heat exchange surfaces and changing the nature of the slag to make it easier to remove. The process includes combusting a slag-forming coal, having high iron and/or calcium content, with an overall excess of oxygen;

  • OBJECTIVE: SCOPE: 3. PROCESS

    Gas Cleaning Plant) before transporting it to the BFG Holder / Flare Stack after internal consumption. vi) Slag Granulation Plant (SGP) / Slag Dumping Yard: During the process of iron making, the impurities are fluxed and removed as slag. The hot liquid slag is made into slag granules by means of high pressure

  • Injection of coal and waste plastics in blast furnaces

    injection as a solid through the tuyeres in a similar way to pulverised coal. The co-injection of waste plastics and coal into BFs is the subject of this report. Pulverised coal injection (PCI) is a well established technology. It is practised in most, if not all, countries with coke-based BFs, and new BFs are nearly always fitted with PCI ...

  • How TerraClean's Engine Carbon Cleaning Works

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    TerraClean is the only service that has two stages of cleaning, the first stage cleans the injection system and inlet valves (manifold injection only) which restores functionality to injectors and fuel pressure regulator resulting in improved fuel pressure, timing and atomisation. On manifold injected engines it cleans inlet valves and ports of sticky deposits allowing improved flow of

  • Product Portfolio Paul Wurth IHI Co., Ltd.

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    Paul Wurth IHI Co., Ltd.'s official website. Iron-Making Technologies, Coke-Making Technologies, Agglomeration Plants, Oil Gas Technologies, Customer Support Services. Introduction of Corporate, Product information.

  • Basic oxygen steelmaking - Wikipedia

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    Basic oxygen steelmaking (BOS, BOP, BOF, or OSM), also known as Linz–Donawitz-steelmaking or the oxygen converter process is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel.Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.The process is known as basic because fluxes

  • Recovery of cobalt, nickel, and copper from slags,

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    In the slag-cleaning process considered here, the furnace would be operated with a layer of electrically conductive coke or coal covering the slag. As the electrodes of the AC furnace penetrate this layer, there exists the possibility of the current flowing between the electrodes on the surface of the slag. This inter-electrode conduction not only reduces the energy dissipated in the slag ...