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coke injection in to slag cleaning powershield
which type of crusher machine best » coke injection in to slag cleaning » vibratory screener construction » Vertical Pet Crushing; stone crusher plant in saharanpur Stone Crushers In Behat Saharanpur – 1 Aug 2013 Get the price of Stone Crushers In Behat Saharanpur: vibrating screen »zA slag cleaning treatment with metal recovery is necessary for ecological and economical reasons zAt the IME the intensification of slag cleaning of lead/zinc and copper slags in the EAF by coke injection is investigated, including injection trials in a water model and test runs in the pilotscale EAFSlag Treatment in the EAF / SAF with Coke Injection
Intelligent sensor for coal powder rate injection in a
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 coneIn parallel test runs in the pilot scale EAF of IME have been conducted in order to demonstrate the feasibility of a slag cleaning treatment by coke injection It has been found that the process(PDF) Intensification of Processes in the Non Ferrous
(PDF) SlagCoke Interactions in the Lead Blast Furnace
The interaction between metallurgical coke and slag is an important aspect of furnace operation in both lead production and ironmaking This interaction occurs in the dripping zone of the blastThe initial study to control the coal rate injected into a slagcleaning furnace (SCF), based on a soft sensor, was developed at Caletones Smelter, Chile The old estimation algorithms were only based on discharged cycle average information, leading to large prediction errorsCoal rate injection control in a slag cleaning furnace
Efficient Recovery of Copper and Cobalt from the Matte
Aug 24, 2018· 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 whichRecent experiment in our laboratory demonstrates that an increase in slag foaming with carbon injection rate is limited by slag volume The current work has identified a relationship between foam height, carbon injection rate and slag volumes, which carbon in the form of coke, char or coal, is injected into the furnace and reacts with slagsCarbon Injection into Electric Arc Furnace Slags
Coke Oven Gas Injection in a Blast Furnace – IspatGuru
Coke Oven Gas Injection in a Blast Furnace satyendra; July 19, 2014; 0 Comments ; BF, COG, coke, injection, replacement ratio, Tuyere,; Coke Oven Gas Injection in a Blast Furnace The iron and steel industry is one of the main consumer of energy and hence responsible for high emissions of carbon di oxide (CO2)Despite remarkable decrease in specific CO2 emissions by most of the steel plantsrolling operations, metallic losses in slag, etc The latter two forms of scrap tend to be clean, ie they are close in chemical composition to the desired molten steel composition and thus are ideal for recycle Reclaimed/obsolete scrap frequently has a quite variable composition and quite often contains contaminants that areEAF Fundamentals: Charging, melting and refining
Coke Oven Gas Injection in a Blast Furnace – IspatGuru
Coke Oven Gas Injection in a Blast Furnace satyendra; July 19, 2014; 0 Comments ; BF, COG, coke, injection, replacement ratio, Tuyere,; Coke Oven Gas Injection in a Blast Furnace The iron and steel industry is one of the main consumer of energy and hence responsible for high emissions of carbon di oxide (CO2)Despite remarkable decrease in specific CO2 emissions by most of the steel plantsRecent experiment in our laboratory demonstrates that an increase in slag foaming with carbon injection rate is limited by slag volume The current work has identified a relationship between foam height, carbon injection rate and slag volumes, which carbon in the form of coke, char or coal, is injected into the furnace and reacts with slagsCarbon Injection into Electric Arc Furnace Slags
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 toBy injecting 2 pct coke and 2 pct pyrite, the contents of Cu and Co in cleaned slag decreased to 046 and 001 pct, respectively It proves that the injection of additives into molten slag is an effective method to recover Cu and Co from the matteslag mixture of ISA furnaceEfficient Recovery of Copper and Cobalt from the Matte
Injection of coal and waste plastics in blast furnaces
injection as a solid through the tuyeres in a similar way to pulverised coal The coinjection 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 cokebased BFs, and new BFs are nearly always fitted with PCIIndividual Line Flow Control: This configuration provides the highest coal delivery accuracy to each tuyere injection lance Global Flow Control with Static Distributor: A static splitter followed by flow balancing tuyeres in the lengthoptimized individual feed lines give excellent control of the distribution of coal to each injection lancePulverized Coal Injection / Ironmaking / Our Activities
The Melting Properties of Tuyere Slags with and without
b) Bosh slag–consisting of the primary slag, all the additives and fluxes dissolved in it and some ash from coke consumed for direct reduction and carburisation; c) Tuyere slag–formed by the ash content of coke and coal burnt in front of the tuyeres and, if injection of fluxes are used, the injected flux;rolling operations, metallic losses in slag, etc The latter two forms of scrap tend to be clean, ie they are close in chemical composition to the desired molten steel composition and thus are ideal for recycle Reclaimed/obsolete scrap frequently has a quite variable composition and quite often contains contaminants that areEAF Fundamentals: Charging, melting and refining
Recovery of cobalt, nickel, and copper from slags, using
In the slagcleaning 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 The gas injection of solidJun 29, 2014· Thus a combined injection of oxygen and fuel at the tuyere level decreases the coke rate in a blast furnace One ton of pulverized coal injection replaces around 09 to 10 ton of BF coke Similar reduction in the BF coke rate takes place with other fuel injections Oxygen injection alone does not reduce BF coke rate but improves BF productivityFactors affecting Coke rate in a Blast Furnace – IspatGuru
Controlling Slag Defects, Insoluble Buildup in Melting and
A clean, limebased slag, free of iron oxide, replaces the unwanted slag The new, FeOfree slag creates a barrier to atmospheric contact, preventing new ironoxide formation In iron melting, few special precautions are taken to prevent ironoxide formation, and up to now ferrous foundries have accepted the consequences of its presencepaul wurth to revamp coke oven gas treatment plant in kazakhstan ArcelorMittal Temirtau recently awarded Paul Wurth with a contract for engineering, equipment supply as well as supervision services for erection and commissioning in relation to the revamping of the Coke Oven Gas Treatment & ByProduct Plant at Temirtau works, KazakhstanPaul Wurth to revamp Coke Oven Gas Treatment Plant in
How to clean up your cocaine Rap Basement Message Board
Jul 05, 2020· But there is an easy, no chemistry background method to cleaning your coke from leftover impurities Is your coke any of these things: Hardhitting, edgy, ampy, nonsociable, uncomfortable, paranoid, heart racey, tweaky, introverted? Well it's not supposed to Cleandue to changes in size and quality of metallurgical coke, and slag chemistry Table II shows the average composition of SCF slag from March 2009 to December 2010 Table I: Typical analysis of Slag Cleaning Furnace (SCF) slag, mass % Cu Fe SiO2 CaO MgO Co S Al2O3 Fe3O4 548 2703 3093 809 3242 076 038 639 1402Influence of slag composition on reduction control and
The Melting Properties of Tuyere Slags with and without
b) Bosh slag–consisting of the primary slag, all the additives and fluxes dissolved in it and some ash from coke consumed for direct reduction and carburisation; c) Tuyere slag–formed by the ash content of coke and coal burnt in front of the tuyeres and, if injection of fluxes are used, the injected flux;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: Recommended1995 The forming of foaming slag in electric arc furnace
Controlling Slag Defects, Insoluble Buildup in Melting and
A clean, limebased slag, free of iron oxide, replaces the unwanted slag The new, FeOfree slag creates a barrier to atmospheric contact, preventing new ironoxide formation In iron melting, few special precautions are taken to prevent ironoxide formation, and up to now ferrous foundries have accepted the consequences of its presenceMay 29, 2017· Parts Cleaner: Coke vs Oven Cleaner Duration: CocaCola Cleaned My Car how to make a diy soda blaster for motorcycle carburetor injector and throttle body cleaning Cleaning a engine block with coke
Product Portfolio | Paul Wurth IHI Co, Ltd
IRONMAKING TECHNOLOGIES Thanks to our extensive knowhow in plant and mechanical engineering, Paul Wurth IHI Co, Ltd is able to offer a complete range of products based on proprietary technologies and customized solutions in the field of hot metal production, raw material preparation and related environmental technologiespaul wurth to revamp coke oven gas treatment plant in kazakhstan ArcelorMittal Temirtau recently awarded Paul Wurth with a contract for engineering, equipment supply as well as supervision services for erection and commissioning in relation to the revamping of the Coke Oven Gas Treatment & ByProduct Plant at Temirtau works, KazakhstanPaul Wurth to revamp Coke Oven Gas Treatment Plant in
New Cupola Reducing Coke, Operating Costs for ACIPCo
7) Iron oxidefree slag stops sulfur reversion in ductile iron 8) Iron oxide present in slag must be chemically reduced by special materials added to the slag mass It cannot be physically removed 9) Removing cover slag, exposing clean molten metal to the atmosphere, causes higher levels of iron oxide in the newly formed slagdue to changes in size and quality of metallurgical coke, and slag chemistry Table II shows the average composition of SCF slag from March 2009 to December 2010 Table I: Typical analysis of Slag Cleaning Furnace (SCF) slag, mass % Cu Fe SiO2 CaO MgO Co S Al2O3 Fe3O4 548 2703 3093 809 3242 076 038 639 1402Influence of slag composition on reduction control and
Coal for metallurgical coke production: predictions of
injection technology should include those properties problems in the cleaning of blast furnace gas Coke because as they increase, coke productivity in the blast furnace decreases The coke ash is a nonproductive part of coke which influences slag volumecosts Mechanical cleaning, using high pressure jetting, is typical It requires equipment opening and often heat exchanger bypassing In cases where the exchangers cannot be bypassed, a unit shutdown may be required to clean the equipment and a substantial production loss needs to be added to the total cost of cleaningRefinery Process Fouling Control SUEZ
USA1 Targeted reagent injection for slag
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 slagforming coal, having high iron and/or calcium content, with an overall excess of oxygen; moving theIncreased blast temperature plus cokeoven gas (or oil) injection should reduce the coke rate and increase iron make appreciably High top pressure has not been included mainly because it is unlikely to affect coke rate or flux additions or to depend on the ore acids It would, however, increase iron make 2 000 1800 0 U w A 1 600 < Z` 1 400 ZIronmaking under Indian conditions EPrints
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 pressureThe injection of the oxygen into the core of the HRG (not to the coke packing) is the main principle for oxygen injection It could be achieved by the inclination of the injecting socket towards the HRG stream or by injection of the oxygen in a blanket of natural gas or cold reducing gas (CRG) The tuyere arrangement for this case isSubstitution of Coke and Energy Saving In Blast Furnaces