Optimizing The Lining Life Of Steel Ladles With Gunning

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UDC 666 . 7 . 044 Development of Mechanical ... - Nippon Steel

the steel ladles used at Nippon Steel’s Yawata Works, we could pro-long the ladle’s life and cut down on labor required for ladle refrac-tory maintenance. This paper describes the newly developed rotary shot method. 2. Development of the Rotary Shot Method 2.1 Pattern of ladle repair at Yawata Works

LI-Explorer

Examples of Current Laser-Ladle Inspection . fixed or tiltable ladle stand. bridge over ladle transport car. swinging arm above ladle. If the mouth of the ladle is “clean” and no skull is built up you can have good results from the entire Ladle-Refractory lining although the laserscanner is in front of the ladle mouth. But hidden areas ...

in steel industry - Sevenrefractories

the service life of the ladles. closing rim ramming mix or patching castable 1 slag working lining mgo-c bricks or self-flowing castable 2 working lining vibration castable 3 sidewall safety lining reinforced-vibrating castable 4 permanent safety lining alumina bricks or self-flowing castable 5 shell protection high insulating material 6 bottom ...

Measures to extend the life of the ladle refractory material

Sep 27, 2016· Uneven ladle refractory lining is damaged, it is necessary to take repair, gunning and other measures to shore up weak links, to improve job ladle refractory consumption rate …

Enhanced Performance of Ladle Refractory Lining Throughput ...

Within these operations it shows outstanding performance as ladle linings, spouts and receivers or in the uppercase body of channel furnaces. Performance: The high flexibility of Norflow® A 973 selflowing castable refractory product line is definitely a key advantage highlighted by our customers.

Technical Review UDC 666 . 763 / . 767 - Nippon Steel

service life of the inner lining of ladles and reaction vessels, stabi-lize steel production, reduce costs, and improve product quality, it is necessary to adequately select the most suitable refractory according to the use condition. In steelmaking processes, the characteristics of molten metal, slag chemistry, atmosphere, and temperature are

Comprehensive CFD simulation of the ladle cycle toward ...

Comprehensive CFD simulation of the ladle cycle toward lining service life optimization To cite this article: Mansour Al-Harbi et al 2012 IOP Conf. Ser.: Mater. Sci. Eng. 33 012022 View the article online for updates and enhancements. Related content Thermo-mechanical modeling of dendrite deformation in continuous casting of steel

Corrosion Mechanism of A Density-Reduced Steel Ladle ...

Refractory monolithics for steel ladle linings are typically products with low porosities and high bulk densities. They achieve high temperature, penetration, and corrosion resistance. Despite the high density of these products, which is due to the low porosity of the aggregates, their matrices still exhibit a high amount of pores. Since calcium magnesium aluminate (CMA) has already proven its ...

Steel Ladle | A Global Refractory Leader | Calderys

Preserving high quality steel (i.e. less carbon pickup) Increasing availability of your ladle fleet Calderys solutions are customised depending on the size of the ladle and the operating requirements, and thanks to our brick product ranges there is full flexibility to offer any lining type (insulating, safety, or wear linings) in the ideal ...

Steel Ladle Lining - stahl-online

Steel Ladle Lining incl Steel Plant Tour . 10 to 12 September 2018, Duisburg, Germany . DIRECTED BY. Dr. Andreas Buhr, Almatis Dr. Helmut Lachmund, AG der Dillinger Hüttenwerke. T. ARGET . G. ROUP • The wear of refractory materials in the secondary metallurgy is particularly high. These high wear mechanisms are complex, but mainly ...

Batching , Material Handling

The hot gunning repair of aggregates (con­verter, ladle, EAF, RH­snorkels, etc.) is a cost saving alternative to the shut­down and re­newal of the complete lining. This process increases the service life of a furnace con­siderably, and it further results in savings of re­heating energy.

A Method for Steel Ladle Lining Optimization Applying ...

Aug 09, 2018· A steel ladle of voestalpine was the object used for lining concept optimization. Figure 1a depicts the simplified two-dimensional model representing a horizontal cut through the slag-line position in the upper part of the steel ladle. The model consists of a two half-brick working lining, a monolithic permanent lining, a fiber board, and a ...

Best steel ladle refractory lining design & engineering

We offer innovative design and engineering for optimum efficiency along with package of materials for steel ladle refractory lining which includes gunning materials, back up bricks etc.

Castables and Masses – Vishva Vishal Engineering Limited

o We manufacture magnesite based moldable water-free mix for Tundish lining o It is easily filled between the permanent layer of Tundish and the steel former o The forma is heated upto 3000C by a hot air generator for 2-2.5 hours, and then removed by crane after cooling o It is formed at designed thickness.

Ladle - an overview | ScienceDirect Topics

Feb 05, 2012· Ladles equipped with a nozzle in the base are common for the production of large steel castings. Pouring from the base is sometimes known as ‘teeming’. The benefits are generally described to be: 1. for large castings the tipping of a ladle to effect a lip pour becomes impractical, so that the bottom-teemed ladle is the only practical option;

Innovation in Steel Ladle Life to 157 Heats at Rourkela ...

bottom of steel ladles are shown in Table 1. D. Metal Zone The refractory lining in this zone, i.e. from the bottom to the metal level was felt to be important to improve the ladle lining life because the total ladle life depends on the performance of this zone. Work was carried out on the quality of MgO-C bricks by conducting various trials and

Optimizing the lining life of steel ladles with gunning ...

The purpose of the thesis is to find a way to optimize the use of steel ladle linings with the help of gunning and laser measurement. The secondary aim of the thesis is to find out the refractory wear behavior during the lining life in different process treatments, refractory wear Equation for wear prediction and the advantages and ...

Refractory Systems for Steel Casting and Treatment Ladles

Steel / ladleS Optimized Lining for Ladle Metallurgy The areas subjected to low wear and those to extreme wear in the ladle, such as the slag zone, purging or impact area, should have a comparable residual thickness at the end of a ladle campagin in order to utilize the lining …

Tundish and its role in Continuous Casting – IspatGuru

Sep 28, 2013· Since the tundish act as a reservoir of liquid steel during the period of ladle change periods and since it continues to supply liquid steel to the moulds when the incoming liquid steel has stopped due to ladle change, it makes the sequence casting by a number of ladles feasible. Fig 1 shows a tundish in a continuous casting machine.

Why promote the indefinite shape of ladle lining ...

Optimization of ladle maintenance mode The consumption of steel ladle refractories in Japan is 1.1~1.5kg/t.s, and in my country is 2~3kg/t.s, the gap is very large. Among them, the improvement of small repair life and the promotion of wet spray repair liner technology are the key.

Current Refractory Technology and Practices in the Steel ...

United States Steel Corporation 8 Ironmaking Refractory Technology Iron Transportation: Torpedo Cars, Iron Ladles Hot Metal or Torpedo Cars 60% Alumina and 70% Alumina Brick Safety and Working Lining In some cases, Alumina-SiC-C resin bonded bricks are used Maintained by 60-65% Alumina Shotcrete Shotcrete repair done every 50-100,000 tons hot metal

Optimization of 320T BOM for torpedo ladle for higher life.

PDF | On Jul 14, 2015, Abhishek Anand published Optimization of 320T BOM for torpedo ladle for higher life. | Find, read and cite all the research you need on ResearchGate

Continuous Casting Steel Ladle Refractories - RS Kiln ...

Continuous Casting Steel Ladle Refractories Description Continuous casting steel ladle’s working condition is severer than mould casting steel ladle, so continuous casting steel ladle should chose high quality refractories. EAF ladles and converter ladles have different working conditions ,such as turnover speed, temperature fluctuation, etc. So different refractory materials should be ...

SOTO Consulting Engineers | Iron Torpedo Ladle: Reusable ...

Apr 05, 2020· But gunning has limitations: it’s labour-intensive and cannot apply thick enough applications of the repair material for sufficient life extension of the torpedo vessels. An idea that had been discussed over decades was the use of a veneer former to create a cast-in-situ lining for the torpedo ladles, as this process applies a veneer of ...

Gunning robots improve repairs - VELCO

Gunning robots improve repairs The hot gunning repair of aggregates – converter, ladle, EAF, RH-snorkels and so on – is a cost-saving alternative to shutting down and renewing the complete lining. It also increases the service life of a furnace, leading to savings of reheating energy. Quick repair also reduces the number of circulating

CHAPTER 3 ENERGY OPTIMIZING FURNACE EQUIPMENTS

The Energy Optimizing Furnace (EOF) consists of the following main equipments: 3.1 EOF HEARTH Dish shape EOF hearth constructed using boiler quality plate and lined with refractory bricks that holds liquid steel while processing. Since this is basic oxygen steel making, the refractory in the working lining …

Steel Ladle - HarbisonWalker International

Steel Ladle Refractory Solutions. HarbisonWalker International is one of the largest domestic manufacturers of steel ladle refractories. Our steel ladle refractory solutions are customized based on shop-specific conditions to optimize refractory performance and improve safety, refractory life and yield.

STEEL INDUSTRY - Sevenrefractories

Steel cleanliness is safeguarded by high alumina-spinel products Fully integrated monolithic solutions have been engineered for any steel ladle lining with: • Low and ultra-low cement castable • Precasted pieces ready for use • Ramming, gunning and shotcrete mixes produced with selected and high grade raw materials. STEEL LADLE 2

Refractory Lining and Wear of AC and DC FURNACES

Steel Academy Steel Institute VDEh PO box 104842 40039 Düsseldorf Sohnstraße 65 40237 Düsseldorf Germany Fon +49 211 6707 454 Fax +49 211 6707 655 E-Mail: [email protected] Internet: www.steel-academy.com . Refractory Lining and Wear of AC and DC FURNACES . …

Mill Ladle Refractory Monitoring | FLIR Systems

Ladle Safety. It is well known that refractory linings in steel mill ladles have limited lives, and useful life may be shortened even more due to breakage of refractory bricks from mechanical shock. As the lining wears or develops breaks, the outer part of a transport ladle can be exposed to molten metal.