Stabilization of Stainless Steel Slag via Air Granulation

The system consisted of the following components, as shown in Fig. 3: 1. a granulation enclosure to collect granulated slag product; 2. a tilting ladle to transport slag; 3. a crane to transport the tilting ladle; 4. a slag feeding launder to receive the slag from the tilting ladle; 5. a blower with variable speed drive to supply granulation ...

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A Novel Stacked Rotary Cup Atomizer Toward Efficient …

The authentic molten slag is adopted as working medium and the centrifugal granulation phenomena are visually investigated including the molten slag fragmentation on the surface of atomizer and the impacting of slag droplets on the water cooled wall. A film perforation fragmentation mode is found in the experiments under high slag flow rate.

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Effect of Water Granulation Conditions on Density …

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 …

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Stabilization of Stainless Steel Slag via Air Granulation

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A new technological approach to the granulation of slag …

Schematic diagram of a new technological system for hydro-vacuum granulation (HVG) of slag melts. 1—HVG unit; 2—diffusor with a replaceable nozzle (d—functional …

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Effect of Water Granulation Conditions on …

Figure 21 shows a schematic diagram of the developed equipment. A new blowing box and agitation tank were constructed, and these were connected to the existing granulation system. The granulated slag and …

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6-Process flow diagram of the rotary-drum granulation …

Download scientific diagram | 6-Process flow diagram of the rotary-drum granulation-heat recovery system [8]. from publication: Slag Crystallization Pertaining to Heat Recovery | Slag and Heat ...

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Metallurgical slag granulation and waste heat recovery …

As shown in Figure 1 2, Cu slag is metallurgical slag rich in divalent iron with a phase of 2FeO·SiO2. This kind of slag should be oxidized in the granulation process to transform the internal ...

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Composition-specific granulation characteristics of molten …

Centrifugal granulation is one key step to enable waste heat recovery from the molten slag in the iron and steel industry. Yet, it remains unknown about the granulation …

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XRD patterns of samples from slag reduction (AS-1-3

Download scientific diagram | XRD patterns of samples from slag reduction (AS-1-3 – sample contained in graphite crucible, SiMgO-1-2 - sample contained in MgO crucible) from publication ...

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INBA slag granulation system for blast furnace No.6 at JFE …

Slag granulation system produces granulated slag, which is mainly used as a raw material for cement and concrete aggregate, by quenching molten blast furnace slag with water. Paul Wurth Group (hereinafter "PW") has more than 260 references worldwide for the supply of slag granulation systems and INBA dewatering drums. Based on PW's ...

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DESIGN OF A DRY SLAG GRANULATION PLANT FOR …

Schematic diagram of a dry slag granulation plant. on fluidized bed grates (FBGs) purged with air. Ref. [13] discusses a method for determining the geometric and operating parameters of a disk for spraying LS. The present paper presents acomprehensive methodology for determining all the main design and operating

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Installation of a State-of-the-Art Slag Granulation Plant

formation of a solid slag layer over the length of the runner, thus reducing the need for maintenance of the runner section immediately before the slag spray box. Figure 6: Thermal analysis of copper stave for slag runner Condensation Tower As previously discussed, the original concept of granulation systems allowed atmospheric emis-

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A new technological approach to the granulation of slag …

A system analysis of advantages and features of the semi-industrial pilot HVG-plant showed that its operation for granulation of slag melts of ferrous metallurgy in enterprises equipped with modern arc electro-thermic ore-smelting furnaces is feasible according to the schematic diagram presented in Fig. 11, where 1 is arc ore-thermal furnace, 2 ...

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XRD patterns of samples from slag reduction (AS-1-3

A slag sample was produced during laboratory reduction tests of a steel slag for metal recovery. The reduction of the metal oxides changed slag basicity (CaO/SiO 2) to about 1.6 and led to the ...

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Dry slag granulation at a spinning disc Key Results/Findings …

Download scientific diagram | Dry slag granulation at a spinning disc Key Results/Findings A conceptual flowsheet has been developed in the 1 st year (by June 2007) of the project based on process ...

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EQUIPMENT AND TECHNOLOGY OF THE PAUL WURTH

The continuity of the process of granulating, dewatering, and evacuating the slag makes it possible to completely automate the operation of the unit – the INBA slag granulation system does not require an operator.A gas fitter stationed at the control panel of the blast furnace (or a hearth attendant in the cast house) monitors the process on the display of a com-

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Research status of centrifugal granulation, physical heat recovery …

A large number of by-products such as dust, sludge and slag can be generated during the production of iron and steel [3].As reported by the World Steel Association, the mass of slag accounts for 90 % of the total solid by-products produced (Fig. 2).The temperature of the discharged blast furnace slag (BF slag) is between 1450 ° C and 1650 ° C, which carries a …

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Aggregate granulation curve. | Download Scientific Diagram …

Download scientific diagram | Aggregate granulation curve. from publication: Effects of FeNi3 Nanoparticles and Coal Slag on Mechanical and Durability Properties of Concrete against Acidic ...

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Artificial Neural Network-Based Non-Linear Modeling and

Blast furnace slags are formed by CaO-SiO2-Al2O3-MgO systems and have several physical characteristics, one of which is viscosity. Viscosity is an important variable for the operation and blast furnace performance. This work aimed to model viscosity through linear and non-linear models in order to obtain a model with precision and accuracy. The best model …

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Breaking boundaries in slag waste heat recovery: Review and …

Extensive lab-scale studies had been conducted to better understand the slag granulation performance intensively involving visualization and numerical simulation ... Tian's results revealed that the slag TTT diagram presented a double C-shaped curve with critical cooling rates of 4.5 ℃/s and 14.3 ℃/s. The critical cooling rate was 6 ℃/s ...

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Characteristics of Glass Beads from Molten Slag …

Figure 1 shows a schematic diagram of the RCA equip-ment used in this experiment. It mainly consists of four parts: ... slag granulation was simultaneously observed by a video camera. The slag drops were collected and then classified ... the inside and the outside of the collector box. The slag outside the collector box refers to the slag, which

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Products › Ironmaking and steelmaking › Slag …

The slag granulation plant comprises three sections: for granulation, dewatering and storage. In the granulation section, the liquid slag is 'quenched' by pouring onto it an excess water stream. The evaporated water will be condensed in a …

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Dry granulation concept. | Download Scientific Diagram

Download scientific diagram | Dry granulation concept. ... To save the thermal energy and retain the added value of slag, dry granulation could be an attractive and eco-friendly option. Among all ...

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Appearance of slag granulation by RCA under …

At the present molten slag from a blast furnace (B.F.) 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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Schematic diagram of high-temperature …

Schematic diagram of high-temperature experimental set-up for centrifugal granulation of molten slag-metal mixture using a spinning cup. [...] Centrifugal granulation technology using a...

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Process flow diagram of a dry slag granulation …

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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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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5: Schematic diagram of dry granulation. [3]

Download scientific diagram | 5: Schematic diagram of dry granulation. ... In this study, a development of technology for dry granulation of Linz-Donavitz (LD) slag, under research, has been ...

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I, 2, I STEEL SLAG GRA

Table 2 shows the density of solid slag obtained from granulation and that obtained from direct pouring from EAF. This density data is necessary as the granulated slag will be used as the …

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Physical model of rotating cup granulation

Dry centrifugal granulation technology is an important mean for liquid high-temperature slag. In this paper, the numerical simulation of dry granulation process was carried out to analyze the ...

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Modeling on Dry Centrifugal Granulation Process of …

dry granulation process of molten slag which can solves the problems mentioned above to a large extent. Different kinds of dry granulation techniques have been proposed and investigated. Typical examples of these processes include granulation by cooling drum, mechanical stirrer, rolling drum, high speed air and centrifugal force etc.1,2) Among

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