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Heat recovery from hot blast furnace slag granulates by pyrolysis of printed circuit boards Y. L. Qin, X. W. Lv*, G. B. Qiu and C. G. Bai Heat recovery from hot blast furnace (BF) slag is difficult to achieve but has great potential to recover energy and thereby reduce CO 2 emissions. The objective of this work is to utilise the heat
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for the blast furnace slag energy and as in consequence CO 2 can be saved. In summary dry granulation of blast furnace slag allows an environmental friendly and sustainable subsequent processing for one of the last big heat recovery potentials at a modern blast
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DRY SLAG GRANULATION WITH HEAT RECOVERY* Ian James McDonald1 Andrea Werner2 Abstract Each year, approximately 400 million tons of blast furnace slag is produced worldwide with a tapping temperature of around 1,500°C. It is normally used as a substitute for cement clinker or as an aggregate material in road construction.
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dry slag granulation with heat recovery, p. 286295. In: 45º Ironmaking / 16º Iron Ore / 3º Agglomeration, Rio de Janeiro, 2015. ISSN: X, DOI /
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Furniture and linen; Metal constructions for the building industry; Heating, ventilation, air conditioning (HVAC) and refrigeration equipment; Metal pipework, valves and containers
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Water granulating is widely used to treat blast furnace slag in ironmaking process, and the large amount of waste heat of granulating water is currently wasted in the cooling tower or in detritus tank. In response to the status, a newstyle technical scheme that the granulating water was used for building heating as the heat source was put forward in the paper.
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Described were blast furnace slag waste heat recovery systems based on such technologies from foreign countries as solid particle impingement, mechanical agitation, rotary drum granulation
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A considerable amount of heat energy is contained in the molten slag tapped from blast present,the BF slag is treated by impinging much water for granulation and the energy is wasted without,dry granulation technology has attracted more and more basic problems and technical difficulties of dry granulation were dry granulation processes
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The invention relates to a liquid blast furnace slag granulating device which comprises a slag melting bin, a granulator, a granulating bin and a rectifying cavity, wherein the granulator is positioned in the center of the integral device, mainly comprises a rotating disc, a highspeed rotating shaft and a speed regulating motor and is used for centrifugally granulating liquid slag into fine
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8/9/2016· Dry Slag Granulation with Waste Heat Recovery 1. MINERALS DOWN UNDER NATIONAL RESEARCH FLAGSHIP Current Status Future Direction of CSIRO''s Dry Slag Granulation Process with waste heat recovery ICST 2012, Dresden, Germany: 13 October, 2012 Sharif Janshi and Dongsheng Xie 2.
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7/31/2012· Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat. To recover the heat, a new waste heatrecovery system—granulating molten BF slag by rotary multinozzles cup atomizer and pyrolyzing printed circuited board with obtained hot BF slag particle—was proposed in this study.
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Abstract. Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat. To recover the heat, a new waste heatrecovery system—granulating molten BF slag by rotary multinozzles cup atomizer and pyrolyzing printed circuited board with obtained hot BF slag particle—was proposed in this study.
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Ando J, Nakara T, Onoue H, Ichimura S, Kondo M (1985) Development of slag blast granulation plant characterized by innovation of the slag treatment method, heat recovery, and recovery of slag as resources. Mitsubishi Heavy Industries, Ltd. Technical Review, pp 136–142
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BF SLAG BIOMASS GASIFICATION BLASTFURNACE SLAG COAL Energy Granulation Green Sustainable Science Technology H2 GAS Heat recovery Metallurgy Metallurgical Engineering NONFERROUS SMELTER SURVEY STEEL SLAG STEELMAKING SLAG Science Technology
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11/1/2019· As a valuable byproduct of the ironmaking process, blast furnace slag with temperature up to 1450–1650 ° C contains a tremendous amount of sensible heat. Dry granulation and waste heat recovery via a moving bed is an attractive alternative to the conventional water quenching method due to energysavings and the reduction in water consumption.
WhatsApp Heat recovery in dry granulation of molten blast furnace slag. article{osti_, title = {Heat recovery in dry granulation of molten blast furnace slag}, author = {Tetsuro, N and Hiroshi, N and Koichi, F and Tsukio, I}, abstractNote = {In a research and development project undertaken jointly between Ishikawajimarima Heavy Industries Co. and Sumitomo Metal Industries, Ltd., a process
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In the area of heat recovery from molten slags, some work is already 1n progress in Sweden and Japan. In Sweden, a subsidiary of the State Steel Company, Merox Ltd, is developing a process for granulating and recovering heat from slag. The slag is; granulated by striking a falling film of slag with previously solidified slag particles.
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Dry Granulation of Blast Furnace Slag for Heat Recovery Blast furnace slag is known as a byproduct from the production of hot metal at integrated steel and iron mills. Approximately 300 kg of this liquid slag with a temperature of about 1500°C is tapped together with each ton hot metal.
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Blast furnace slag (BF slag) is a byproduct from blast furnace exhaust temperature of 1450℃ or so, is a highquality waste heat resources. In China, the steel industry produces approximately 220Mt of BFS per year, and the enthalpy of those slags is approximately equivalent to % of the whole energy consumption in the ironmaking process[1].
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1: QI Yuanhong,GAN Lei,WANG Haifeng,ZHANG Chunxia,YAN Dingliu (State Key Laboratory of Advanced Steel Processing and Products, Central Iron Steel Research Institute,Beijing China 100081);The Development Process and Trend of the Waste Heat Recovery Technique of the Molten Blast Furnace Slag[A];[C];2011 2
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recovered heat is to use it on the blast . furnace [1]. This means that the supply of recovered heat will match the blastfurnace demand. The energy flows in an integrated steelworks are complex. The main purchased primary fuels are coal, Heat recovery from slag improves . energy efficiency of furnaces . by Mike Rycroft, features editor, EE
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Flight Dynamics and Sensible Heat Recovery of Granulated Blast Furnace Slag The Open Fuels Energy Science Journal, 2015, 8: 356360 Lianyong Wang, Wenqiang Sun, Xiaoling Li, Jiuju Cai Department of Energy and Power Engineering, Northeastern University, Shenyang, 110819, China. Electronic publication date 3/11/2015 [DOI:
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At the present molten slag from a blast furnace () is granulated by impinging much water without any recovery of its much sensible heat (1 823 K), polluting water and atmosphere.
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8/9/2014· Without the need of an upstream drying system for the blast furnace slag energy and as in consequence CO2 can be saved. In summary dry granulation of blast furnace slag allows an environmental friendly and sustainable subsequent processing for one of the big heat recovery potentials at a modern blast furnace.
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