MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Water slag composition standards
European standards / technical guides Euroslag
3 天之前 Examples of environmental regulations and directives in Europe which concern the use of slag: EUWaste catalogue [2000] EUCouncil Decision on the Landfill of Waste [2002] EUWaste Shipment Regulation [2006] EUREACH Regulation [2006] EUWaste Framework slag is classified into 4000, 6000, and 8000 according o specific surface area (cm2/g) For each of the classes, an activity index is speciied The specifications of granulated blast furnace slag that acts as the raw material for ground granulated blast furnace slag are: magnesium oxide 100% or less; sulfuric trioxide 40% or leStandardization of Iron and Steel Slag Products2019年7月31日 Iron and steel slags from legacy and modern operations in the ChicagoGary area of Illinois and Indiana, USA, are predominantly composed of Ca (10–44 wt % CaO), Fe (03–28 wt % FeO), and Si (10–44 wt % SiO 2), Geochemical Characterization of Iron and Steel Slag Table 2 summarizes some typical slag standards In the Chinese standard GB/T 18046 [61], slag is divided into three grades (S109, S95, and S75) according to its activity index Current typical slag standards in China, Japan, Korea,
Properties and Environmental Dynamics of Slag
2023年11月17日 EPA recommends a secondary standard (a nonenforceable guideline) for drinking water pH of 65 to 85, 6 and a water quality criteria for freshwater for protection of fish and biota of pH 65 to 9 7 In terms of Download scientific diagram Chemical composition of basic oxygen furnace (BOF) slag, granulated blast furnace slag (GGBS) and coal fly ash (FA) from publication: Geopolymer Technologies for Chemical composition of basic oxygen furnace (BOF) 2011年10月27日 Blast Furnace Slag Composition In modern ironmaking, In the simplest versions the molten slag stream is poured into a powerful jet of water to give granulated slag but there are other variants such as pelletising, When British Standards were being replaced by European Standards in the late 1990s, Basics of slag production Article on the slag industry from Global Slaganese Industrial Standards and Environment standard for iron and steel slag products Table 1 Japanese Industrial Standards of iron and steel slag Use Denomination Year Cement Portland cement JIS R 5210:2009 1950 enactment Portland blastfurnace slag cement JIS R 5211:2009 1950 enactment Concrete Readymixed concrete JIS A 5308:2009 1953 enactmentStandardization of Iron and Steel Slag Products
The effect of chemical composition on the leaching behaviour of
Standard leaching tests (24h at 10 l/kg) in deionized water on slag bulks were performed and the results were correlated with the slag chemical composition The survey has made possible defining the safe chemical composition areas on the main ternary diagrams, able to transfer stability to the slag2015年6月1日 Slag is a waste product from the pyrometallurgical processing of various ores Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental consequences, particularly from the release of potentially toxic elements to waterCharacteristics and environmental aspects of slag: A review2020年11月9日 It was considered important that the sample size selected as a basis for a standard should be well within the straight line portion of the curve in order to compare different slags satisfactorily As a consequence, the weight of sample selected as standard for the rest of the investigation was 05 g Standard Technique used for pH MeasurementMetallurgical Slag pH Measurement 911MetallurgistC989/C989M24 Standard Specification for Slag Cement for Use in Concrete and Mortars Special Cements C845/C845M18 Standard Specification for Expansive Hydraulic Cement C192223 Standard Test Method for Water Retention of Hydraulic CementBased Mortars and Plasters by Way of Water Loss Cement Standards and Concrete Standards Standards Products
Recycled Smelter Slags for In Situ and Ex Situ Water and MDPI
2023年3月6日 Slags from the ferrous and nonferrous metallurgical industries have been used to treat toxic contaminants in water and wastewater Using slag as a recycling or renewable resource rather than a waste product has environmental and economic benefits Recycled smelter slags can be used in both in situ and ex situ treatment However, their application has some 2001年5月1日 Watercooled slag (WS) and aircooled slag (AS) were characterized chemically and mineralogically and a comparative study of their reactivities with 10% and 20% lime was conducted using an Characterization and Evaluation of the Hydraulic Activity of Water 2007年10月1日 Table 1 Chemical composition of EAF slag The basicity index of the slag calculated based on CaO/SiO 2 and CaO/(SiO 2 +P 2 O 5) works out to be 185 and 178 respectivelyThe relationship between basicity, phase composition and hydraulic activity of steel slag as reported in the literature is given in Table 2Treatment and characterisation of electric arc furnace (EAF) slag Table 2 shows a range of typical chemical composition of EAF slag According to these compositions and to the thermodynamic stability diagrams (Figure 1), 13 formation of the spinel phase could be Range of Composition of EAF Slag Download
Hydrogeochemistry of Alkaline Steel Slag Leachates in the UK
2008年5月28日 Drainage from steel slag disposal sites can be extremely alkaline and a source of pollution to surface and ground waters Data is presented detailing the hydrogeochemistry of seven highly alkaline (pH > 10) steel slag surface discharges in the UK While there is the consistent presence of Ca–OH type groundwater in all the discharges, there are clear and transport properties of slag blends under different temperature conditions Two slags having Ca/Si ratios of 105 and 094 respectively were used to partially replace a CEM I 525R at 30%Combined influence of slag composition and temperature on the In this work, the effect of slag chemical composition on the chemical leaching of about seventy EAF carbon steel slags of different production steel grades was investigated Standard leaching tests (24 h at 10 l/kg) in deionized water on slag bulks were performed and the results were correlated with the slag chemical compositionThe effect of chemical composition on the leaching behaviour of requirements of Specification C465 when tested using a blend that is 50 % slag cement and 50 % portland cement by mass 7 Chemical Composition 71 Slag cement shall conform to the chemical requirements prescribed in Table 2 8 Physical Properties 81 Slag cement shall conform to the physical requirements of Table 1 9 SamplingSlag Cement for Use in Concrete and Mortars1 iTeh Standards
THE USE OF ALUMINUM SLAG RECYCLING PRODUCTS IN INVESTMENT CASTING
2018年12月14日 The studies of fractional, chemical and phase compositions of aluminumcontaining slags of different origin found that slags are multicomponent systems consisting of metal and nonmetal parts51 The material used for producing slag rods may be a furnace slag, furnace charge materials, a mixture of materials designed to duplicate a slag, etc 52 The slag to be used for each test shall be ground to pass an ASTM No 30 (600µm) sieve (equivalent to a 28mesh Tyler Standard Series), and organic plasticizers, suspendingStandard Practice for Drip Slag Testing Refractory Materials at Download scientific diagram Typical chemical composition of blast furnace slags from publication: Ironmaking and Steelmaking Slags as Sustainable Adsorbents for Industrial Effluents and Typical chemical composition of blast furnace slags2020年3月29日 This rapid water quenching of slag results in the formation of sandsize fine particles, with a minimum amount of clinker like material The physical properties and granulometry of GBF slag depend on the elemental composition, cooling kinetics, and the BF operational parametersUtilisation perspective on water quenched and aircooled blast
Chemical composition of ground granulated blast furnace slag
Download scientific diagram Chemical composition of ground granulated blast furnace slag (GGBFS) from publication: Activation of slag through a combination of NaOH/NaS alkali for transforming 2021年11月28日 Blast furnace slag, which is the main byproduct of the ironmaking process discharged at 1450 °C, contains highquality sensible heat, while oily sludge is the main solid waste produced in the process of gas Effect of Oily Sludge Treatment with Molten Blast 2024年11月3日 Organophosphates are a type of emerging environmental contaminant, which can be removed effectively by adsorption Here, modified steel slag was examined for its adsorptive performance in the removal of hydroxyethylidene diphosphonic acid (HEDP) from water Compared to acid (553%, maximum removal rate) and base (855%) modification, high Adsorption Removal of Organophosphates from Water by Steel Slag Table 2 Mix proportion of concrete Mixture Materials (kg/m3) NPC2 PBFSCB Water Sand Gravel Superplasticizer (ml/100kg cement) NPC 030 475 142 610 1185 1100ESTIMATION OF SLAG CONTENT AND WATERTO
Basic oxygen furnace slag: Review of current and potential uses
2020年4月1日 The geochemical behaviour and characteristics of the alkaline leachate seeping from landfill sites and stockpiles depends on many factors, including (Mayes et al, 2008, Mayes and Younger, 2006, Roadcap et al, 2005): (i) the chemistry (pH, conductivity, etc) of the water before it comes into contact with the slag; (ii) the composition and age of the slag contained in The slag consisted of 995% glass and some crystalline components such as gehlenite and merwinite, with its chemical composition presented in Table 1 and physical characteristics in Table 2Blast furnace slag chemical composition Download Table2023年5月12日 The increase of building materials’ water sorption over standard allowable values causes deterioration of their technological and performance characteristics—increase of porosity, The clayslag mix of the following composition was used, wt%: Gorodische clay—40; hydrauliccooled OEMW slag, fraction 0–5 mm—60; lime (CaO) WaterResistant Clay and Slag Composite Materials of Autoclaved 2021年11月3日 The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed In order to satisfy these factors, a new technology for hydrovacuum granulation of slag melts (HVG) has been developed It is shown that the main advantage of the proposed HVG process is the A new technological approach to the granulation of slag melts of
The effect of chemical composition on the leaching behaviour of
2016年3月1日 Chemical composition and slagwater interaction were investigated and correlated with the results of standard leaching tests (in accordance with EN 12,4572) performed on bulk slag 4 mm in size The effects of the main chemical species (CaO, MgO, Al 2 O 3 ,) on Ba, Cr and V leaching is discussedSteel slag is one of the most common waste products from the steelmaking industry Conventional methods of slag disposal can cause negative impacts on humans and the environment In this paper, the process of steel and steel slag production, physical and chemical properties, and potential options of slag recycling were reviewed Since steel is mainly produced through an Assessment of Electric Arc Furnace (EAF) Steel Slag Waste’sPDF On Mar 1, 2016, D Mombelli and others published The effect of chemical composition on the leaching behaviour of electric arc furnace (EAF) carbon steel slag during a standard leaching test The effect of chemical composition on the leaching behaviour Cement and Concrete Research 31 (2001) 475 ± 484 Hydraulic activity of watercooled slag and aircooled slag at different temperatures NY Mostafaa, SAS ElHemalyb, EI AlWakeelc, SA ElKorashyc, PW Browna,* a Materials Hydraulic activity of watercooled slag and air
Chemical compositions (wt %) of black and white
The Black Steel slag (Ss) and phosphogypsum (PG) are industrial wastes produced in Morocco In order to reduce these two wastes and to evaluate their pozzolanic reactivity in the presence of water Download Table Chemical composition of slag cements, % from publication: Effect of Slag Cement on Drying Shrinkage of Concrete The effect of a partial replacement of cement with slag cement Chemical composition of slag cements,Download Table Chemical composition of slag samples from publication: Efficient Removal of Arsenic (V) from Water Using SteelMaking Slag This study describes the potential use of steel Chemical composition of slag samples Download Tableslags such as slag fineness and chemical composition, type, and concentration of the alkaline activator, water/binder (w/b) ratio, temperature, or pH[18–38] The present paper is focused on one of these parameters, namely the chemical composition of the slag and its impact on hydration and strength development TheInfluence of slag composition on the hydration of alkaliactivated
Steel Slag an overview ScienceDirect Topics
Carbon dioxide sequestration using steel slag—modeling and experimental investigation Smitha Gopinath, Anurag Mehra, in Carbon Dioxide Sequestration in Cementitious Construction Materials, 2018 41 Introduction Steel slag is an industrial waste that is generated during the production of steel In the production of steel, oxides of metal impurities in the iron combine 2008年1月1日 Defining arbitrarily as the “Standard Seawater” certain samples taken from the North Atlantic surface water in a specific region, as proposed first by Martin Knudsen at the international conference for the exploration of the sea held in Stockholm 1899 (Knudsen, 1903), it can be assumed that the chemical composition of all these samples is practically identical, The composition of Standard Seawater and the definition of the 84 slag blends designated as S1 and S2 respectively Both slags had similar physical 85 properties, with different chemical compositions (notably the alumina and silica 86 contents) The oxide and phase composition of the asreceived slags and cement 87 are shown in Table 1 and Table 2 respectively The Xray diffraction showing theInfluence of slag composition and temperature on the hydration GGBFS Standards generally seek to (a) measure and control the chemical composition of the slag with respect to certain components that can cause performance issues, (b) set physical requirements that ensure adequate reactivity, and (c) define minimum performance requirements The first attempt at an Australian Standard for slag wasGround Slag Properties, Characterisation and Uses
Comprehensive utilization of steel slag: A review ScienceDirect
2023年5月15日 Steel slag is the main solid waste generated in the steelmaking process, accounting for 15 to 20% of crude steel output [1]China's crude steel output in 2021 was 1035 billion tons [2], more than half of the global crude steel output (19505 billion tons) [3], and the steel slag output exceeded 120 million tonsIn contrast, the comprehensive utilization rate of