Sep 01, 2022 · Effects of different waste gas recovery sintering (WGRS) methods on the quality index and process performance of the iron ore sinter were studied by a plant test, compared to the conventional sintering (CS). Two key operational parameters, namely, the temperature and oxygen content of the recycling gas, were selectively discussed.
احصل على السعرAn unsteady one-dimensional model of an iron ore sintering bed with multiple solid phases was proposed. The proposed model confers a phase on each solid material. The present model was established with a series of conservation equations in the form of a partial differential equation for each solid phase and gas phase. Coke combustion, limestone decomposition, gaseous
احصل على السعرFeb 28, 2022 · The sintering pot test shows that the sinter yield and quality indices had little change after the optimisation of fuel distribution, while the solid fuel consumption was decreased by kg t −1. KEYWORDS: Iron ores sintering, fuel distribution, numerical simulation, heat quantity analysis
احصل على السعرAbstract: In this paper a new technology for a compact iron ore sintering machine is analyzed. The compact sintering process is based on the massive injection of gaseous fuels and the solid fuel is only agglomerated fine charcoal obtained by biomass. The solid fuel used in this study is obtained by agglomeration of fine charcoal produced from
احصل على السعرSinter is the first process in the whole ironmaking industry, which plays an important role in the iron and steel production process [], and its energy consumption accounts for a large proportion of the entire ironmaking industry, reaching about 10%, which is the second largest energy-consuming process in the entire steel main energy consumption comes from the
احصل على السعرModeling Sintering Process of Iron Ore InTechOpen. 23 Mar 2022 previously prepared mixture of iron ore sinter feed fine coke or 1992 investigated the heat transfer properties under the sinter bed to give higher productivity combined with low fuel consumption and high recycling
احصل على السعرJun 14, 2022 · The properties of circulating gas have a significant effect on sintering with flue gas recirculation, and the influence of CO in sintering process was investigated. The results show that the post-combustion of CO conducts in sinter zone when flue gas passes through the sintering bed, which releases much heat and reduces the consumption of solid fuel. The
احصل على السعرNov 21, 2022 · The size of iron ore affects the sintering properties. An increase in the size of iron ore promotes the productivity of sinter, but can reduce the tumbler strength slightly and save a little coke. The mineralogy of sinter can more easily be predicted from its chemical composition than its physical and chemical properties.
احصل على السعرsintering, the welding together of small particles of metal by applying heat below the melting process may be used in steel manufacturing—to form complex shapes, to produce alloys, or to work in metals with very high melting a steel-sintering plant a bed of powdered iron ore, mixed with coke or anthracite, is ignited by a gas burner and then moved
احصل على السعرsintering iron ore microparticulate dust sintered iron Prior art date 2022-12-02 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires 2022-05-31 Application number US12/085,913 Other versions
احصل على السعرSintering of Iron Ore Fines Sintering is an agglomeration-technique for enlarging the iron ore particle size. The use of iron ore sinter in a modern day blast furnace has become common due to various advantages associated with it. The merits of sintering process are listed below in comparison to iron ore pellets: (i) The sintering process uses
احصل على السعرFinally, the proportion of fine material in the available products has increased considerably for most iron ore fines. This has been found to have significant impacts on sinter quality and sintering performance. Magnetite concentrate is typically high in Fe grade and releases extra heat when oxidised to hematite.
احصل على السعرJun 22, 2022 · The sintering process, as shown in Fig. 1, begins with the preparation of the raw materials consisting of iron ore fines, fluxes, in-plant metallurgical waste materials, fuel, and return fines from the sintering process. These materials are mixed in a rotating drum, and water is added in order to reach the desired agglomeration of the raw
احصل على السعرThe charge-end gas is drawn from the middle of the strand. Sintering energy consumption has been reduced by about 100 MJ per ton of sinter. Pohang Iron and Steel Company, in its No. 4 SP at Pohang (Korea), has 25 wind boxes and produces 13500 t sinter per day, which accounts for 82% of the ferric material in its blast furnace burden.
احصل على السعرThe porosity of iron sinter shows a gradual decrement from 950 °C to 1050 °C but up to 1150 °C it shows a significant decrement about 44%. Inferring to the micrograph, the agglomeration and assimilation of sinter at high temperature is better compared with low sintering temperature.
احصل على السعر1 2. Heat Recover Technology from Sintering Plant Sintering plant consists of two measure sections, sintering section and sintered ore cooling section. Heat recovery from both parts has been developed from sintering section exhaust gas and from cooling section cooling gas. Fig.-3 shows the gas temperature distribution of both sections.
احصل على السعرMay 31, 2022 · Iron ore sintering is a heat treatment process for agglomerating fine particles into larger lumps, which then serve as the major burden for blast furnace. The production of high-quality sinter is critical for efficient blast furnace operation [1-3].
احصل على السعرThe use of biomass as fuel might solve several technological and environmental issues and overcome certain challenges of sinter production. In particular, as revealed by comprehensive analyses, biomass can be used as fuel for iron ore sintering. In this study, we investigate the use of some raw and pyrolysis-processed biomass pellet types, namely wood, sunflower
احصل على السعرAug 22, 2022 · Traditional research on sintering burdening focuses on adjusting proportion of different ore and other raw materials to optimize certain objective functions that are defined in term of material costs. With regard to environmental concerns, energy consumption becomes another critical issue in sintering burdening. A collaborative optimization model is proposed to
احصل على السعرIn this research, the replacement of fossil fuel energy (coke) with oil palm empty fruit bunch as a potential energy in sintering of iron ore was investigated. Carbon derived biomass has been produced by using oil palm empty fruit bunch by heat treatment process. In the present investigation, sintering process was carried out by heating the mixed iron ore and biochar at
احصل على السعرMar 23, 2022 · This research work focuses on the reduction behavior of iron ore pellets, sinter, and lump ore in simulated BF shaft conditions where H 2 and H 2 O are present in typical CO CO 2 N 2 atmospheres. 2 Experimental Section. Sinter, lump ore, and iron ore pellets were used in experiments. The composition for all three materials is shown in Table 1.
احصل على السعرNov 03, 2022 · Sintering: Our history in sintering started more than 100 years ago, and since then Outotec has not only delivered hundreds of iron ore sinter plants but has constantly developed the process to cope with new challenges and trends. These have included the demand for larger plant capacities, the need to maintain consistently high product
احصل على السعرAug 15, 2022 · Sinter is the primary feed material for making iron in a blast furnace, and we have previously written about sintering and how it is a step between mining ore and The only source of primary iron is iron ore, but before all that iron ore can be turned into steel, it must go through the sintering process.
احصل على السعرFeb 16, 2022 · 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).
احصل على السعرComprehensive numerical simulation model was developed to describe the structural changes in the iron ore sintering bed by using the discrete element method (DEM). The heat wave propagation through the sintering bed was incorporated by combining the solutions of the various reaction rates and gas-granule heat transfer with the calculation of
احصل على السعرIn the worldwide iron making industry, sinter constitutes the major component in the metallic burden of most of the blast furnaces as it has numerous properties which lead to reduced coke rate, increased productivity, better heat transfer and permeability, elimination of raw flux, narrowing of softening and melting zones and better quality of hot metal.
احصل على السعرThis product is also ISO9001 certified. The consumer can use it in Melting Furnace. Iron ore /nickel ore / chrome ore sintering machine Price in China The price of Iron Ore /nickel Ore / Chrome Ore Sintering Machine from China is based on the bulk order quantity.
احصل على السعرAug 24, 2022 · Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. Owing to the depleting reserves of traditional high grade iron ore, there have
احصل على السعرMay 11, 2022 · The partial and complete replacement of coke breeze with anthracite for sintering Bahariya iron ore at the Egyptian Iron & Steel Company (EISCO) was carried out. The best results were obtained for 25% of coke breeze replaced with anthracite. The specific productivity increased from to t/m2 /h, the sinter strength increased from 88 to 90%, the
احصل على السعرJan 12, 2022 · Differential scanning and high temperature reaction calorimetry have been used to characterize a series of natural iron ore and flux samples commonly used during iron ore sintering. Most iron ore samples were shown to contain measurable quantities of goethite, with a characteristic dehydration peak in DSC and TG between 200 and 400°C. At higher
احصل على السعرNov 14, 1990 · An improved iron ore sinter for use in a blast furnace is made from a raw sinter mix comprising: iron-bearing materials; basic fluxes including a source of CaO and a source of MgO; and solid carbon-bearing material usually coke breeze, used as a
احصل على السعرAn economic analysis shows a significant annual revenue of 14, thousand USD based on high-purity (>%) SO 2 and NO 2 products recovered from a typical scale (~1000,000 m 3 /h) of iron-ore sintering flue gas, not only offsetting the total operating cost of the entire adsorption capture-distillation recovery process but also generating
احصل على السعرIron ore concentrate supplied from the mines to some extent fluctuate in their chemical composition as a result of the nature of the deposit with various factors controlling beneficiation processes and addition of metal-bearing materials collected as a waste product from the Rolling Mills, Blast Furnace and Sinter Plant which must be recycled
احصل على السعرThe iron ore used presents a low MgO content (%) and a high Al2O3 content (%). It was seen that raising the MgO content in the sinter, from to %, increased the FeO content and decreased productivity and the RI, RDI and TI indices [13].
احصل على السعرJan 29, 2022 · As a result, yearly average productivity of t/ m2 / h and the use of 135 kg/t-sinter Brazilian concentrated ultra fine ore were achieved with 1 350 MJ/t-sinter heat consumption for sintering
احصل على السعرStrategy for efficient utilisation of low grade iron ores in sintering Magnetite concentrate is typically high in Fe grade and releases heat when oxidised. Hence it is an ideal sweetener to maintain sinter grade and quality when high proportions of low grade ores are used in the blends.
احصل على السعرMay 01, 2022 · Differential scanning and high temperature reaction calorimetry have been used to characterize a series of natural iron ore and flux samples commonly used during iron ore sintering. Most iron ore samples were shown to contain measurable quantities of goethite, with a characteristic dehydration peak in DSC and TG between 200 and 400°C. At higher
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