The sintering technology is basically an agglomeration process for the iron ore fines which is dependent on heat to melt the surface of the smaller particles together to form larger agglomerates. A typical sinter plant consists of a number of sequential operating units with the sinter machine at the heart of the plant.
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اقرأ أكثر5. 5 Material flow Diagram Sintering Plant Flux Hammer Crusher Flux Screen +3mm Stock Bin & proportioning section Iron Ore Fines -3mm Coke breeze from C O PMD Hot Sinter return -5mm Cold Sinter return Cold Sinter return Coke return from B F -25mm -3mm Fuel Storage Coke crusher Sinter M/c Hot screen SLC Cold screen Sinter …
اقرأ أكثرThe sintering process begins with preparation of a sinter mixture consisting of iron ore fines, fluxes, solid fuel (called bonding agents in Japan) such as coke breeze, and return fines from the sinter plant as well as recycled ferruginous materials from downstream iron and steelmaking processes.
اقرأ أكثر(Received on January 20. l999. accepted in final form on June 24 7999) The paper describes return sinter fines regime and the factors influencing it under the prevailing condition of the sintering plant at Bhilai, India.
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اقرأ أكثرPrior to dispatch of sinter to the blast furnace for hot metal production, the sinter product from the sinter cooler is screened to remove smaller/finer particles. The undersize so generated is called internal return fines, which are generally recirculated into the sintering machine. A very high level of internal return fines generation limits the use …
اقرأ أكثرMoreover, they applied return fines embedding technology to three sinter plants, which revealed that return fines embedding technology could considerably improve productivity. Wang et al. [ 27 ] also found that with applying return fines embedding technology, the FFS and productivity were raised from 21.66 mm/min and 1.46 t/(m 2 ·h) …
اقرأ أكثرwhere H is the height of sintering bed (mm); t is the sintering time (min); M is the mass of sinter cake (kg); M 0 is the mass of return fines (kg); S is the cross-sectional area of sinter bed (m 2). The tumbler index is the mass proportion of the > 6.3 mm sinter after 8 min tumbling, which is determined by ISO tumble standard.
اقرأ أكثرAn sequent sintering and recirculation of the return fines increase in the sinter basicity reduces the sintering time till the system reaches the balanced return fines regime. due to: This is typically illustrated in Fig. …
اقرأ أكثرThe fines removed by the hot screens are conveyed to the return fines bin. After cooling, the sinter is passed into the discharge bunker. At this stage, the level is controlled by varying the outlet feed rate (usually vibros).
اقرأ أكثرThe sintering process is a thermal agglomeration process, and it is accompanied by chemical reactions. In this process, a mixture of iron ore fines, flux, and coal particles is heated to about ...
اقرأ أكثرThe sinter plant that converts the iron ore fines into a desirable blast furnace feed, offers an avenue for recycling wastes. One of the several wastes that are produced at an iron and steel plant is the undersized pellet fines, which cannot be …
اقرأ أكثرMetals 2023, 13, x FOR PEER REVIEW 9 of 13 As shown in Figures 8 and 9, among the five different locations of embedded return fines, the FFS and productivity are the lowest if the return fines are ...
اقرأ أكثرMay 16, 2023. 12 min read. Sintering is a broad family of methods that forms integral and potentially highly complex parts from a wide range of materials, by compressing and then fusing powders and binders. The part goes through two stages. The first stage makes the required shape a weak and poorly integrated, oversize component.
اقرأ أكثرSintering is a thermal process (carried out at 1300 deg C to 1400 deg C) by which a mixture of iron ore, return fines, recycled products of the steel plant industry (such as mill scale, blast furnace dusts, etc.), slag forming elements, fluxes and coke fines are agglomerated in a sinter plant with the purpose of manufacturing a sintered product ...
اقرأ أكثرJan et al [2] had studied the impact of return because the internal return fines (expressed henceforth as a sinter fines from the blast furnace on the sintering process percentage of base mix) generation was on the higher side at and its impact on productivity by varying the quantity of Tata Steel's Kalinganagar works (~ 26-28%). return fines ...
اقرأ أكثرThe Intensive Mixing and Granulation System can be installed within new sinter plant projects and as well as a add-on package within existing sinter plants of various sizes. Table 1. Siemens VAI installations of Intensive Mixing and Granulation System for sinter plants. Reference Installation.
اقرأ أكثرThe paper describes return sinter fines regime and the factors influencing it under the prevailing condition of the sintering plant at Bhilai, India. The effect of return sinter fines, basicity and other variables on the yield of sinter and speed of sintering has been evaluated through the pot sintering experiments designed statistically and …
اقرأ أكثرFigure 1 shows a simplified diagram of a sinter plant. Materials enter the sinter plant from storage bins. They are mixed in the correct proportions using weigh hoppers, one per storage bin, except for the return fines for which an impact meter is used instead. Weighing is continuous, as is the whole sintering process.
اقرأ أكثرerates of return fines of sinter are superior to those of conventional sinter. This concept is considered to be effective for utilizing sinter fines as blast furnace raw materials in a high pulverized coal rate and low coke rate operation. KEY WORDS: agglomeration; return …
اقرأ أكثرEffect of Particle Size Range of Return Fines for Embedding. To optimize the size of return fines (used for embedding) for effectively improving the permeability of the sinter packer bed, the returned fines were divided into five groups according to their …
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اقرأ أكثرThe return fines embedding technology is proposed to reduce fuel consumption. • Return fines are recommended to embed in the lower layer of the sintering bed. • The O 2 concentration in flue gas is decreased while the gas temperature is increased. • The fuel consumption can be reduced by 16% at most via the sintering pot …
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اقرأ أكثرhow much iron ore fiens is needed for a sinter plant. Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (e.g. mill scale, blast furnace dust, and. Read More
اقرأ أكثرThe screened sinter is recycled to the raw material bedding and blending plant. The productions of these fines therefore result in loss of revenue for the sinter plant. In SP#4 around 22–25% of the return fines are generated, which is much higher than the world average of 15%. The aim of this project is to study the composition and phase ...
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