The dry production design is adopted, but the production line is equipped with environmental protection devices such as dust removal and silencer, which effectively reduce pollution such as dust and noise, fully comply with national environmental protection standards, easily pass environmental impact assessment standards, and achieve both economic and environmental benefits.
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The iron ore is evenly fed by TSW1139 feeder into HJ98 high-efficiency jaw crusher for coarse crushing. After that, the materials would be sent into CS160 cone crusher for secondary crushing.
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— Iron ore tailings IOTs are a form of solid waste produced during the beneficiation process of iron ore concentrate In this paper iron recovery from IOTs was studied at different points during a process involving pre concentration followed by direct reduction and magnetic separation Then slag tailing concrete composite admixtures
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The aim of this work was to study the slag formation during the reduction process and the reduction behaviour of iron oxides Furthermore the reduction behaviour of iron ore during continuous feeding was assessed Mixtures of iron ore and calcined lime with a basicity of 0 and were melted and reduced by hydrogen
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— Ground granulated blast furnace slag GGBS is a by product from the blast furnaces used to make iron Blast furnaces are fed with controlled mixture of iron ore coke and limestone and operated at a temperature of
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— Carbon monoxide is the major hazardous component in flue gas exhausting from the iron ore sintering This study aims to reduce the CO emission by changing the sinter parameters by sintering pot tests; specifically the sinter quality CO concentration and total emission in sintering flue gas were analyzed in detail The sinter
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— To counteract the rising greenhouse gas emissions mainly CO2 the European steel industry needs to restructure the current process route for steel production Globally the blast furnace and the subsequent basic oxygen furnace are used in 73% of crude steel production with a CO2 footprint of roughly t CO2 per ton of produced
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Direct iron smelting reduction has been examined using a modified 50 kg induction furnace The furnace was equipped with continuous raw material feeding a top oxygen lance argon bottom bubbling and sensors for measurement of gas and bath temperatures gas composition and other parameters In the base case iron ore was charged at the rate of
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— In the recent past a paradigm shift in terms of resource utilization and beneficiation practices is experienced by the Indian mining and mineral sector Depleting iron ore reserves coupled with increasing demand for low alumina iron ore fines to improve blast furnace performance in terms of productivity and reduced slag rate necessitate intensive
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Abstract Metallurgical companies work at volatile market of iron ore raw materials and fuel and power resources thus importance of solution search for the optimal distribution of raw material resources in a blast furnace system and optimal composition determination for each furnace burden is growing Review of the current approaches to the process
— Another addition agent used in this study is iron slag Iron slag is obtained from the iron ore The effect of chrome and iron slag on compaction parameters Compaction parameters consist of optimum water content and maximum dry density of the ground These parameters are very important for the compactibility of the ground thus for
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The aim of this work was to study the slag formation during the reduction process and the reduction behaviour of iron oxides Furthermore the reduction behaviour of iron ore during continuous feeding was assessed Mixtures of iron ore and calcined lime with a basicity of 0 and were melted and reduced by hydrogen
— Another addition agent used in this study is iron slag Iron slag is obtained from the iron ore The effect of chrome and iron slag on compaction parameters Compaction parameters consist of optimum water content and maximum dry density of the ground These parameters are very important for the compactibility of the ground thus for
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— The thermodynamic parameters ΔHº Iron ore tailing is a type of hazardous solid waste in China and has caused serious environmental problems [11] The value of using industrial byproducts such as fly ash and slag to produce blended cement and concrete has already been widely recognized but hazardous material like iron ore tailing
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— Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines recycled ironmaking products fluxes slag forming agents and solid fuel coke
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— Introduction Iron has been a valuable commodity since the Iron Age and was utilised to create an array of objects The main method of smelting iron ores in premodern times was the so called direct or bloomery method in which the ore is processed in a furnace with carbon rich fuel at temperatures around 1200 ° In this
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— Tracing the origins of iron artifacts generates great interest in iron metallurgy Chemical analysis of non metallic slag inclusion SI entrapped in iron produced in bloomery furnaces is an efficient mean for provenance studies as within their composition SI do not only carry the conditions of production but also the chemical signature of the
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— Iron ore reduction slag basicity xCaO/xSiO2 in the range from for minimum corrosion of the refractory lining the specific amount and volume of the process slag are significantly increased up Range of typical production parameters of electric arc furnace EAF charges with scrap and scrap/DRI respectively for low alloyed
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Molten iron and slag are withdrawn at the bottom The entire stock in a furnace may weigh several hundred tons Figure PageIndex{2} Within a blast furnace different reactions occur in different temperature zones and the resulting calcium oxide combines with silica and silicates in the ore to form slag The slag is mostly calcium
KEY WORDS flue gas recirculation; iron ore sintering; emission reduction 1 Introduction Iron ore sintering plant is an industry of high energy con sumption and high pollution while the major air pollution in iron and steel industry The amount of exhaust gas in sin tering process accounts for 40% of iron and steel industry
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The optimized parameters are a slag basicity of ; a reduction temperature of 1550 °C a reduction time of 90 min and a C/O mole ratio of Jia B ; Qi Study on metal amount carried by slag during smelting with full V Ti iron ore Iron Steel 1996 31 14 18 [Google Scholar] Figure 1 XRD pattern of pickling sludge after
— With the large consumption of easy to mine high quality iron ore in recent years the pressure on the supply of high quality iron ore in the world has increased year by year phase for the slagging process [37] The ore particles become spherical after FSS treatment the spherical metallic iron is wrapped by the slag phase on the outside
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— Quantitative XRD analysis of iron ore sinter and Fundamental studies of sinter phases Apart from natural iron ore the Rietveld method has also been applied to study the phases presented in sintered iron ore or iron ore sinter A typical outcome from the Rietveld analysis of an iron ore sinter is shown in Fig
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— Abstract—The formation of slag binders which ensure the strength properties of iron ore pellets during reduction is studied The formation of dicalcium ferrite which is not reduced has been found The formation of an irreducible binder namely dicalcium silicate belite is also discovered However this compound is characterized by
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— Due to increased flux addition there is formation of some slag and due to it there is to a certain extent slag bonding with iron ore crystals High basicity pellets have a basicity level greater than The quality of green pellets depends on input parameters like mineralogy chemistry and granulometry of ore fines balling parameters
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— In particular the annual amounts of iron slag and steel slag globally generated were estimated to be 390 Mt and 290 Mt respectively in 2022 Steel and iron making slag contain 30 60 wt% of calcium oxide CaO and 3 15 wt% of magnesium oxide MgO suggesting high CO 2 storage capacities [19]
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Shuang ping Yang Jiang han Li Wen bing Gao et al Optimization of manganese rich slag extraction from low manganese ore smelting by response surface methodology[J] Journal of Iron and Steel Research International 2022 29 10 1573 1582
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— blocks made with iron ore tailings and slag Cogent Engineering 9 1 2032975 DOI The density of a block is one of the key parameters in the design of masonry structures
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The vanadium slag for this study was sourced from Desheng Iron and Steel Group Co Ltd Sichuan China Vanadium tailings were produced using oxygen pressure leaching method [18] The detailed chemical composition of both the vanadium slag and vanadium tailings are provided in Table 1 and the X ray diffraction patterns are presented in Fig 1
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— The iron and steel industry has made an important contribution to China s economic development and sinter accounts for 70 80% of the blast furnace feed charge However the average grade of domestic iron ore is low and imported iron ore is easily affected by transportation and price The intelligent ore blending model with an intelligent
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