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Development of Molten Slag Dry Granulation and Heat

Corpus ID 138088511. Development of Molten Slag Dry Granulation and Heat Recovery in Steel Industry @article{Chunxia2008DevelopmentOM, title={Development of Molten Slag Dry Granulation and Heat Recovery in Steel Industry}, author={Zhang Chun-xia}, journal={Journal of Iron and Steel Research}, year={2008} }

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vai dry slag granulation

dry slag granulation pilot plant is outlined below Process Air Supply A radial fan is installed to supply the granulator and the various air cooling chambers with process air. Based on the thermal balance of the granulator an air amount of maximal 180,000 Nm³/h is provided

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dry granulation copper slag

Holistic Analysis Of Waste Copper Slag Based Concrete By . aggregates were at laboratory air-dry condition. waste copper slag from blast cleaning was used as a partial replacement of sand. average chemical composition of the slag is as follows sio 3045%, cao 1030%, Fe 25%, Al 715%, mgo 28% and the granulation was much finer than in the case of typical river sand.paper dry slag granulation

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Current Development of Slag Valorisation in China, Waste

Feb 19, 2014 · The main hot stage slag valorisation processes were introduced to deal with slag granulation, metal recovery, and slag products quality. In addition to the slag granulation process with pollution control and continuously dewatering (INBA™ process), several modified blast furnace (BF) slag granulation methods are currently being applied in China.

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chinese technology for blast furnace slag granulation process

An efficient method of blast furnace slag water Minter waste heat recovery system, comprising granulation tower sequentially connected, slag stir cage machines, filters, sedimentation . and the second-generation slag processing technology (British Pakistani law, etc.)

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005 p 0884832262412dd 3 2013/03/20 175309

A slag granulation plant employing Rasa's original technology allows recycling of molten slag, a by-product of steel manufacturing in a blast furnace, as raw materials for cement and concrete. In response to growing demand for construction and refurbishment of steelworks around the world in recent years, we also export this technology and plant.

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Technical measures of air pollution control in the iron

26 Water vaporization above a conveyor belt in a sintering plant (Study PS 1) 56 27 Spraying surface-active water on fine-ore bunkers (Study PS 121) 57 28 Parts of a blast furnace unit fouled by unclean dry granulation of slag (Study PS 120) 58 29 Dry granulation of slag

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Heat recovery from slag improves energy efficiency of furnaces

development of other means of handling slag. These all require rapid cooling of the slag and this led to the development of the idea that the cooling process could involve recovery of heat which could be re-used. Granulation of slag Slag previously discarded, has commercial .

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Granulated blast slag (GBS)

Granulated Blast furnace slag (GBS) is a light coloured 0/4mm glassy sand produced by the rapid quenching of molten blast furnace slag using large volumes of water. Production and Processing. GBS or Granulate as it is sometimes known is produced by rapidly cooling molten Blast furnace slag with water as the slag is tapped from the furnace.

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Ground granulated blast-furnace slag Wikipedia

Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground-granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing

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CURRENT DEVELOPMENT OF SLAG VALORISATION IN

7 Low heat BF slag and steel slag cement report for approval 8 BF slag and steel slag powder report for approval 9 steel slag sand for road YB/T 4187-2009 10 Ground granulated blast furnace slag powder used for cement and concrete GB/T 18046-2008 11 Crushed air-cooled blast furnace slag for concrete YB/T 4178-2008 12

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dry granulation copper slag

Holistic Analysis Of Waste Copper Slag Based Concrete By . aggregates were at laboratory air-dry condition. waste copper slag from blast cleaning was used as a partial replacement of sand. average chemical composition of the slag is as follows sio 3045%, cao 1030%, Fe 25%, Al 715%, mgo 28% and the granulation was much finer than in the case of typical river sand.paper dry slag granulation

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granulation plant for copper slag

eaf slag granulation plant . The envisaged annual capacity of the plant is granulation of 530,000 tons of liquid slag. The plant for granulation of blast furnace slag is an addition made within the scope of the modernization project for the existing Blast Furnace, and is also part of the technological entity for production of crude iron. Know More

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RECENT DEVELOPMENTS IN DRY SLAG GRANULATION A

practices, the developments in dry slag granulation over the last three decades, introduce the Ecomaister-Hatch dry slag granulation process, and elaborate on future applications of the technology in the processing of argon oxygen decarburization and blast furnace slags. Keywords Dry slag granulation; Atomization; Energy recovery, Steam explosion.

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Evaluation of Granulated Blast Furnace Slag as a

This paper summarizes the results of a 1-ton/min pilot plant investigation (covering 101 furnace taps) aimed at determining if water-granulated slag from Inland's Blast Furnace No. 7, when suitably ground, can be used as a cementitious admixture for concrete and mortar.

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Hugo Joubert Manager Base Metals & Copper Products

Responsible for plant development and capital project implementation on the blast furnace iron making plant (4 blast furnaces and ancillary equipment). Key achievements include Investigated, redesigned and implemented a modified cooling water filter system for a 10,000 tpd blast furnace, reducing pressure loss and increasing water supply

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Granulation E Furnace Slag with Di erent Basicities

Coatings 2020, 10, 372 5 of 14 3. Results and Discussion 3.1. Influence of Di erent Basicities on the Granulation E ect of Gas Quenching BFS The experimental material was 30 kg, the slag dumping temperature was 1600 C, the nozzle diameter was 3 mm, the slag cooler speed was 5.5 r/min, and the nozzle pressure was 0.2 MPa.

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EVALUATION OF GRANULATED BLAST FURNACE SLAG AS A

The program consisted of an evaluation of the granulated slag product for use as a cementitious admixture in concrete, and a statistical analysis of the data to identify significant slag composition and granulation controls. The pilot plant operating conditions are described, and the pilot plant operating data are presented and discussed.

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UG-Mat Blast Furnace Slag Recycled Materials Resource Center

Granulated Blast Furnace Slag Granulated blast furnace slag is a glassy granular material that varies, depending on the chemical composition and method of production, from a coarse, popcornlike friable structure greater than 4.75 mm (No. 4 sieve) in diameter to dense, sand-size grains passing a

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233R-95 Ground Granulated Blast-Furnace Slag as a

2. Expanded blast-furnace slag is the lightweight, cellular material obtained by controlled processing of molten blast-furnace slag with water, or water and other agents, such as steam or compressed air, or both. 3. Granulated blast-furnace slag is the glassy granular ma-terial formed when molten blast-furnace slag

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Effect of Water Granulation Conditions on Density and

2.1. Method of Investigating Quality of Water Granulated Slag. To investigate the relationship between the density and grain size of water granulated slag and the molten slag temperature, blowing water temperature, slag flow rate, and water/slag ratio, water granulated slag samples were taken from an actual water granulation system during the tapping period.

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Blast furnace slag granulation Climate Technology Centre

Blast furnace slag is a nonmetallic byproduct of the manufacture of pig iron in a blast furnace. BFS consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates. BFS forms when slagging agents (e.g., iron ore, coke ash, and limestone) are added to the iron ore to remove impurities.

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HEAT RECOVERY FROM BLAST FURNACE SLAG

BF Slag Feed Pump 1 to/min at 1450ºC; ~ 30 MW th Waste Heat RecoveryDry BF Slag Granulation Example Steam Production Feed Water ~7 bar(a), 115ºC M Water Cooled Wall Customer Steam Net Customer Feed Water System Boiler ~ 20,5 MWth Ambient Air Exemplary process values for 1 to/min BF slag Plant design for up to 6 to/min BF slag Stack

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S. J. Pickering/New process for dry granulation and heat

Owing to daily fluctuations in the slag tapped from the furnace, a very large slag accumulator would be needed to utilize all the slag and provide a steady continuous flow to the granulation process. A statistical analysis showed that a slag accumulator of 150t capacity would permit a continuous slag flow of at least10 kg/s for 95% of the time

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{Study on mineralogical crystallization of granulation of

Keywords blast furnace slag; crystallization; simulation; granulation; acidity. INTRODUCTION Blast furnace slag (BFS) is the main byproduct of iron production and is pro-duced at a rate of 300350 kg t1 taking away about 1.5×106 kJ t1 of sensible heat. Currently, traditional water quenching wastes a large amount of water and pollutes

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Effects of Ground Granulated Blast Furnace Slags on Some

Tests were performed under separate contracts at different times for three manufacturers of ground granulated blast-furnace slag to determine the performance of their products with portland cement. Physical tests were performed on pastes, mortars, and concretes to determine both freshly mixed and hardened properties.

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Cognition on the Molten Blast Furnace Slag Granulation

Abstract Introduce characters and applications of granulation techniques of the molten blast furnace slag in contemporary China, describe characters and design ideas of two types of granulation boxes, represent three types of circulating granulation water systems, put forward matching proposal between the molten slag granulation system and the circulating granulation water system, analyze

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Review of 14th Global Slag Conference 2019

Mar 27, 2019 · VoestAlpine has built a pilot plant (commissioned in 2017) capable of processing up to 2t/minute of blast furnace slag at 1450°C, albeit with no energy recovery. Slag is drained onto a spinning rotating cup and the cooling slag is projected onto the water-cooled wall of the vessel.

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Blast Furnace Slag Granulation Plant Other from Kharagpur

Other of Blast Furnace Slag Granulation Plant, Tuyures & Coolers, Thickeners and Refractory Items offered by Steelbeez, Kharagpur, West Bengal.

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Development of Ground-Granulated Blast-Furnace Slag

Development of geopolymer concrete (GPC) with industrial by-products is a solution to the disposal of the industrial wastes, thus making the concreting process sustainable. This paper focuses on the development of GPC using ground-granulated blast-furnace slag (GGBS) and dolomite (by-product from rock crushing plant) as source materials.

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