steelmaking slag magnet separat
CN1301798C - Water washing type slag treatment method ...
The present invention relates to a water-washing type slag treatment method. Slag drops to a water-washing sieving machine through a raw material collecting hopper, and the slag with different specifications are separated; after residual steel of the slag with the different specifications is separated by a magnetic separator, the slag with the maximal specification is smashed and magnetically ...
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Application of Magnetic Separation to Steelmaking Slags ...
Alanyali et al. studied the separation of 10 mm steelmaking slag fines by a dry magnetic drum separator with a constant drum speed of 36 rpm, surface magnetic field strength of 1650 gauss, drum ...
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Method of improvement in efficiency of processing the ...
Download Citation | Method of improvement in efficiency of processing the steelmaking slags | Efficiency of the steelmaking slag processing is low in the case of low selectivity of slag separation.
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Phosphorus removal from slow-cooled steelmaking slags ...
Steelmaking slag contains considerable amount of manganese (Mn) and phosphorus (P), and recycling them is an important issue. Since Mn is an alloy added to enhance the steel quality, while P is a harmful impurity in the steel product, they need to be separated for recycling.
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10.1016/j.jclepro.2014.06.092 | DeepDyve
In these steelmaking unit operations, not only steel products are produced, but also various slags are generated. A steelmaking slag is often given a name corresponding to a specific unit operation, such as DeS slag, BOF slag, LMF slag or EAF slag.
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Application of magnetic separation to steelmaking slags ...
Application of magnetic separation to steelmaking slags for reclamation. ... Integrated iron and steel plants generate large amounts of metallurgical slag, which usually contains some quantity of metals or mixtures of oxides that could be treated to be recycled in various applications. The conventional method for disposal of slags is dumping.
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Properties and Uses of Steelmaking Slag – IspatGuru
The processing of the steelmaking slag (Fig 1) is normally carried out by (i) solidifying and cooling of the hot liquid slag, (ii) crushing and magnetic separation treatment of the slag to recover the scrap, (iii) crushing and classification of the slag for grain size adjustment to manufacture the slag product, and (iv) aging treatment of the ...
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Recycling of steelmaking slag fines by weak magnetic ...
Sufficiently large particle sizes of steelmaking slags must be retained in slag processing for subsequent recycling of the slag products back into ironmaking and steelmaking and for retaining high values-in-use of the steelmaking slag fines. Magnetic separation is ineffective for separating iron from steelmaking slag fines above 1000 G magnetic ...
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Recent progress of hot stage processing for
the granulated slag powders; (4) Dry magnetic dressing to separate metal; (5) Utilisation of slag powders. Homogenising the molten slag Because some unreacted solid lime, refractory particles, and unmelted flux are contained in the molten slag, the fluidity of steelmaking slag may be poor and
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UDC 669 . 054 . 82 : 669 . 184 . 244 . 66 Processing and ...
3. Steelmaking Slag Processing Technology The iron/steel slag processing flow is schematically shown in Fig. 2. Steelmaking slag is subjected to the following four process-es: ① solidify and cooling of the hot molten slag, ② crushing and magnetic separation treatment of the slag to recover the metal iron,
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RECOVERY OF RARE EARTH ELEMENTS FROM EOL …
B magnets in HDDs in the end of life (EoL) products, therefore, closing the life cycle of the REEs application. Slag extraction is the first step to separate REEs from the steel and aluminium based bulk metal compositions. The REE will get enriched in the slag phase and will be extracted with hydro- or pyrometallurgical reduction processes.
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Phosphorus separation and recovery from steelmaking slag ...
This evidence reveals the potential to separate P from steelmaking slag. In this chapter, various technologies for P separation and recovery from steelmaking slag are described. They include magnetic separation, capillary action, dissolution, and carbothermic reduction. Since each method has its own merits and demerits, the best choice of ...
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UG-Mat Steel Slag | Recycled Materials Resource Center
Steel Slag - Asphalt Concrete INTRODUCTION Steel slag can be processed into a coarse or fine aggregate material for use in dense- and open-graded hot mix asphalt concrete pavements, (1,2,3) and in cold mix or surface treatment applications. (4) Proper processing of steel slag and special quality-control procedures are extremely important in selecting steel slag for use in asphalt paving mixes.
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US7810746B2 - Processing of steel making slags - Google ...
A process for separating different products from steelmaking slag includes reducing the average particle size of slag from a steelmaking process into fine particle size material, and separating the fine particle size material into at least an iron rich product and a silicate rich product based on the differences between these products in at least one or more properties including magnetic ...
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Steelmaking Slag Beneficiation by Magnetic Separator and ...
B. Tufan et al./Science of Sintering, 46 (2014) 331-344 333 In this research article, the beneficiation of steelmaking slag with magnetic separator and its impact on quality of sinter, the usage of waste as flux of sintering and the effects of
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Recent progress of hot stage processing for steelmaking ...
Table 1: Separated products of steelmaking slags Diameter T. Fe Magnetic Fe Ratio Water Products Application (mm) (wt %) (wt %) (%) (%) Steel powder <1 > 50 -- 10~14 <2 Sintering Steel grain 1~10 > 90 -- 3~7 <1 Steelmaking Slag powder < 0.1 -- <2 68~78 <2 Construction Slag grain 0.1~5 -- <2 5~15 <1 material The slag powder (containing magnetic ...
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Is slag good for driveways? - FindAnyAnswer
Steel slag is commonly used to cover driveways, to fill potholes, repair farm lanes, residential entrances, or yards. Steel slag is not just good for driveways, it is also used by homeowners as a landscaping stone in back yards around a pool area or patio.
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Steel Slag - Material Description - User Guidelines for ...
Steel slag aggregates are highly angular in shape and have rough surface texture. They have high bulk specific gravity and moderate water absorption (less than 3 percent). Table 18-1 lists some typical physical properties of steel slag. Table 18-1. Typical physical properties of steel slag.
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Separation of steelmaking slag with mechanical stirring by ...
Steelmaking slag is by-product of the steelmaking process and has a high content of iron. In order to recover this iron, steelmaking slag is processed with various methods such as crushing, sieving and magnetic separating. Magnetic separators process steelmaking slag in multiple layers for mass production and non-magnetic particles are attracted to a magnet roll by magnetic particles [1].
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Phosphorus Separation and Recovery from Steelmaking Slag ...
P is unevenly distributed in steelmaking slag and generally concentrated in the 2CaO・SiO 2 phase as a 2CaO・SiO 2 -3CaO・P 2 O 5 solid solution. This evidence reveals the potential to separate P from steelmaking slag. In this chapter, various technologies for P separation and recovery from steelmaking slag are described.
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Magnetic Seperators Used In Slag Crushers
Magnetic seperators used in slag crusher the magnetic separator is an additional machine with slag crusher and slag get price. mineral processing wikipedia. combined magnetic separator coal crusher machine. slag crushing plant for sale manufact this machine is used for sorting 0.416mm grain sie magnetic minerals.
ادامه مطلبRecovery of Phosphorus from Modified Steelmaking Slag …
rization slag using a slag regenerator; P was reduced and concentrated in hot metal, and was further dephosphorized to produce fertilizer material. Yokoyama 5) proposed et al. a magnetic-separation method to separate and recycle the P-rich phase from steelmaking slag, by exploiting the dif-ferences in their magnetic properties.
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Business introduction | Pioneer of The Recycling Company ...
Setting the Standard for Slag Recycling. NMD has been the world leader in slag processing since 1955. Since the development of our exclusive technology, we have consistently produced high quality, value added products for all of the major Japanese integrated steel mills. Our processing technology is able to provide metal of substantially high ...
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Innovative approach to recovery of iron from steelmaking slags
Taking into account hundreds of millions tons of slag stored More sustainable approach to utilise the steelmaking during the last century of industrial era in Ukraine, it is slag components based on transformation of iron from non-magnetic to magnetic form by oxidation has been 1 proposed earlier by the authors.7 This will allow National ...
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magnetic separation of ferrochrome
Magnetic separation is a process used to separate materials from those that are less or nonmagnetic. All materials have a response when placed in a magnetic field, although with most, the effect is too slight to be detected. ... Recovery Of Ferrochrome From Steelmaking Slag. ... slag iron magnetic …
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Recovery of Manganese and Phosphorus from ...
iron and slag are estimated to be 208.9 kt-Mn/year and 55.4 kt-Mn/year. 14) In the steelmaking process, crude steel is produced as the main product and steelmaking slag is generated as a by-product from the basic oxygen furnace (BOF) and electric arc furnace (EAF) processes. Steelmaking slag is generally
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12.5 Iron And Steel Production
0.2 to 0.4 tons of slag, and 2.5 to 3.5 tons of blast furnace gas containing up to 100 pounds (lb) of dust. The molten iron and slag are removed, or cast, from the furnace periodically. The casting process begins with drilling a hole, called the taphole, into the clay-filled iron notch at the base of the hearth.
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iron slag processing
Steelmaking slag beneficiation by magnetic separator doiSerbia. Basic oxygen furnaces BOF slag is the main problem at all iron and steel factories Dumps slags can be revaluated by a processing technology which . Secrets of the ancient iron smelting process Dymarki Świętokrzyskie.
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magnetic separator for slag granulation system
Magnetic Screening Of Mill Slag. Steelmaking Slag Magnet Separat. Properties and Uses of Steelmaking Slag IspatGuru. Nov 14, 2018 The processing of the steelmaking slag (Fig 1) is normally carried out by (i) solidifying and cooling of the hot liquid slag, (ii) crushing and magnetic separation treatment of the slag to recover the scrap, (iii ...
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Enhancement of Iron Recovery from Steelmaking Slag Fines ...
12%Steelmaking slags are usually processed for iron recovery by dry magnetic separation. The recovered iron-rich products are recycled back into the ironmaking and steelmaking processes to replace high-cost steel scrap and iron ores. However, current slag processing is far away from optimum conditions, especially for slag fines with small particle sizes, resulting in …
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