Life cycle and economic assessment of multi-stage blast furnace slag
A series of energy-saving technologies were carried out by many researchers in iron and steel industry [4], [5].Among the possible technologies, waste heat recovery from molten blast furnace slag (BF slag) was believed the last great potential route of energy saving in iron and steel industry [6].As we all know, as a main kind of by-product, BF slag was exhausted at …
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A Review of Granulation Process for Blast Furnace Slag
A Review of Granulation Process for Blast Furnace Slag Pengfei Yu, Shuzhong Wang, Yanhui Li and Guixi Xu ... Dehydration facilities of the RASA (Fig. 1) is composed of several filtering basins, which is made up of layers of ... transported to the water-cycle system. 1—clinker ejector, 2—water slag ditch, 3—water slag tank, 4— ...
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Installation Of State Of The Art Slag Granulation Plant
Addeddate 09:14:10 Identifier InstallationOfStateOfTheArtSlagGranulationPlant Identifier-ark ark:/13960/t0gv30453 Ocr
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Environmental equipments business | Introduction to our …
RASA SYSTEM, developed in 1967, is an original technology owned by Rasa Corporation. If molten slag, a byproduct produced when steel is manufactured in a blast furnace, is rapidly cooled with jet water, granulated slag is produced. What continuously collects this slag and turn it into products is a slag granulation plant (RASA SYSTEM).
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3023: Rasa Corporation
Further, it supplies environmental equipment comprising RASA slag granulation systems and PARA-ECO-recycling systems. Additionally, the company is involved in the supply of plastic resins and chemical products; manufacture of various plastic compounds and masterbatches, including PVC compounds; construction activities; and corporate real estate ...
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Dry Slag Granulation – The Future Way to Granulate Blast …
and a correspondingly large amount of fresh water (about 1 m³/t) has to be fed into the system. Granulation plants with closed water circuits and condensation systems can largely prevent such emissions of water ... Dry slag granulation is based on molten slag atomization using a variable speed rotating cup or dish (see Fig. 1). The slag is
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The granulator spray-head and transport chute The water …
Therefore, systems for the... | Slag, Granulation and Blast Furnace | ResearchGate, the professional network for scientists. ... further descriptions of the dewatering systems used in INBA, RASA ...
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Environmental equipments business | Introduction to our …
What continuously collects this slag and turn it into products is a slag granulation plant (RASA SYSTEM). Granulated slag is recycled as raw materials for cement and concrete, soil …
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Energy-environment-economy evaluations of commercial …
A prototype dry slag granulation system was proposed and designed in commercial scale. The input and output flows of each slag-treatment system were identified. Life cycle assessment on the dry slag granulation method and water quenching methods was carried out. ... TYNA [11], RASA [12], etc. During water quenching process, high-
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sbm danielli corus slag granulation system.md
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Environmental Technical Services | Products | RASA …
Slag Granulation System "RASA SYSTEM" If molten slag, a byproduct produced when steel is manufactured in a blast furnace, is rapidly cooled with jet water, granulated slag is produced. Granulated slag is recycled as raw materials for cement, etc. PARA-ECO-Recycling System.
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Installation of State-of-the-Art Slag Granulation Plant
Description of first European Slag Granulation Plant of RASA type in HKM´s Duisburg plant. Skip to main content Ask the publishers to restore access to 500,000+ books.
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Increasing the Efficiency of Slag Granulation Plant in Blast
Fig.4: SLAG Granulation Plant Controlling System SGP ( Slag granulation plant ) Fig.5: SGP Hot slag is pouring in to the SGP from cast house runner spout; just below the spout cold water is pumped with high pressure nearly 2 Bar from blowing box. Slurry of both slag and water was formed. Because of high
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A Review of Granulation Process for Blast Furnace …
The world's leading countries develop dry slag granulation units that are capable of producing solid slag granules and recovering the sensible heat of slag.
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RASA CORPORATION
The Rasa System slag granulation plant, which developed in 1967, employs Rasa's proprietary technology. Using jets of high-pressure water, it rapidly cools molten slag, a by-product of …
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INSTALLATION OF A 'STATE OF THE ART' SLAG …
art' slag granulation facility. The project covered the design, supply, installation and commissioning of a new granulator for blast furnace 'B' at the HKM Ironmaking facility in …
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Blast Granulation System of BOF Slag'
tional BOF slag treatment system (a gradually cooling system), this is a new system making it feasible to attain heat recovery, inversion of slag into resources and renova-tion of slag treatment simultane-ously. The 's-eye view of the facilities for blast granulation sys-tem of BOF slag is shown in Fig. 1.
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RASA Corporation Company Profile
The company also offers RASA system, a slag granulation plant and PARA-ECO-recycling system for melting such harmful substances as heavy metals and dioxins contained …
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Products › Ironmaking and steelmaking › Slag Granulation Systems
Slag Granulation Systems Efficient blast furnace slag granulation contributes to low-cost hot metal and turns a residue into a resource. 10/117. A modern blast furnace can produce more than a million tons per annum of slag. Slag granulation using water sprays is now an established technology that not only simplifies blast furnace casting floor ...
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Granulation and Heat Recovery from Metallurgical Slags
In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag handling. …
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Granulation and Heat Recovery from Metallurgical Slags
The system of dry, drum-ball granulation of slag with the possibility of heat recovery is also being piloted [22]. However, based on a critical analysis of the published research, it can be noted ...
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Slag granulation in non-ferrous sector
SMS Group subsidiary Paul Wurth notes that its INBA slag granulation and dewatering system is the proven route for converting molten slag into a value-added product not only in the field of blast ...
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A Review of Granulation Process for Blast Furnace Slag
There are many kinds of water treatment method for BF SLAG, such as Advection Sedimentation Tank, RASA, INBA, MTC, TYNA, and RASA. The method of RASA is adopted extensively in …
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Increasing the Efficiency of Slag Granulation Plant in Blast …
Fig.4: SLAG Granulation Plant Controlling System SGP ( Slag granulation plant ) Fig.5: SGP Hot slag is pouring in to the SGP from cast house runner spout; just below the spout cold water is pumped with high pressure nearly 2 Bar from blowing box. Slurry of both slag and water was formed. Because of high
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Comprehensive utilisation of blast furnace slag
depth of the slag flushing trench, large space occupation, low degree of mechanisation and high water and electri-city consumption disadvantages, it is not suitable for inte-grated plant production mode. 1.1.2 The Lhasa method (RASA) The Lhasa method (RASA) water granulated slag treat-ment system was developed by Nippon Steel Pipe and
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Evaluation of Granulated Blast Furnace Slag as a Cementitious …
Abstract. Currently, Inland Steel Co. generates approximately two million tons/year of iron blast furnace slag. This material is disposed of in a landfill which has a life expectancy to 1995. With the completion of the landfill rapidly approaching, an alternative means of slag disposal is necessary. Based on a review of the literature, it was determined that water granulation is …
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Process and Equipment Design for the Dry Slag Granulation …
dry granulation technology to treat the BF slag is very important. The application of BF slag depends on the content of amorphous solids in the slag after treatment. The research on the activation energy of crystallization of amorphous solids in BF slag is the foundation to find out the reasonable cooling speed during dry granulation of molten ...
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Slag granulation systems for blast furnaces
In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag handling.
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INBA slag granulation system: Environmental process control
TL;DR: In this paper, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed, where the main advantage of the proposed HVG process is the provision of forced high-speed vortex convection of water, with the effect of vertical suction, crushing, and degassing of the three-phase (water-slag granules-water vapor) heterogeneous medium …
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Rasa Corporation (3023.T) Company Profile & Facts
See the company profile for Rasa Corporation (3023.T) including business summary, industry/sector information, number of employees, business summary, corporate governance, key executives and their ...
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