Refractory Systems Iron And Steel Industry
Refractor y Systems Iron and steel industr y
Refractor y systems for blast furnaces and pig iron transportSTEULER-KCH offers an extremely wide range of materialsRefractory systems for pig iron transportfor lining blast furnaces depending on the specific installationTorpedo ladles must ensure safe transport of the pig iron fromconditions and loading. Highly wear-resistant and temperaturethe blast furnace to the steelworks. For this application, STEULER-change-resistant corundum brick pre-fired at up to 1700 CKCH offers fired andalusite and bauxite grades which withstandwithstands the mechanical stresses in the top of the blast furnacethese complex conditions. In the high-stress impact area, and ifwhere the burden is introduced. The reduction zones below thatnecessary in the slag zone, resin-bonded brick types based on an-use special shaped bricks made of fireclay and andalusite whichdalusite, bauxite or corundum are used in various grades which,provide outstanding reduction resistance.depending on the requirements, may also contain SiC. The bonding and further carbon additives minimise the slag and pig ironThe highest temperatures and the pressure of the column of burdenwettability of the refractory lining, improve its resistance to tempe-subject the melting zone of the blast furnace to extremely highrature change and enhance its thermal flexibility. STEULER-KCHstresses. For this special high-stress application, STEULER-KCHmaintains a comprehensive range of shapes for lining differentsupplies shaped brick annuli in chemically/ceramically bondedsize ladles. This makes it possible to satisfy the lining requests ofandalusite grades. The bottom of the blast furnace, the hearth, iscustomers flexibly at all times.lined with multiple layers of carbon brick. In order to protect thatmaterial from the pig iron, STEULER-KCH provides low-iron, highIn the back-up wall, the permanent lining, CO-resistant fireclaytemperature-resistant fireclay and andalusite grades for the „cera-and andalusite grades withstand the conditions and ensure safemic cup“ of the blast furnace along with high-refractory sinteredlong-term operation.mullite grades with outstanding corrosion resistance.STEULER-KCHIRON & STEEL2
Below: Schematic diagram of torpedo ladle liningTransfer ladles / hot metal ladles / teeming ladlesFor the past several decades, STEULER-KCH has been providingback-up lining materials ranging from simple insulating fireclaybrick to high-quality permanent lining with emergency operatingproperties. The wear lining and the bottom lining of the ladles areprovided in the form of fired and resin-bonded AC and ASC brick.For special requirements, STEULER-KCH offers a broad spectrumof high-quality alumina products with a variety of additives suchas SiC, chromium oxide and zirconium.Above: Tuyere levelAbove: Blast furnace bottom segment3IRON & STEELSTEULER-KCH
Innovative refractor y concepts for direct reductionFor the direct reduction process, STEULER-KCH supplies individualComplete refractory concepts from a single sourcesolutions for all kinds of aggregates – ranging from air and processSTEULER-KCH supplies a broad spectrum of lining materials notgas heaters to the reformer to the key component of the plant, theonly for the shaft furnace, but also for reformers and recuperators.reduction furnace. There is an increasing demand for innovativeThese include sealing and insulating concretes and lightweight re-refractory concepts to raise the efficiency of the plants. Now in ad-fractory and insulating brick, along with calcium silicate, fibre blan-dition to the high stresses already imposed on the refractory liningkets and anchoring systems. These lining materials are also used inby the reducing atmosphere and temperature changes, materialgas and air heaters, piping and exhaust stacks.throughputs beyond the originally planned capacity also cause increased levels of abrasion.Our extensive experience combined with the continuous further development of our products and services enables STEULER-KCH tooffer individual refractory concepts for demanding applications.STEULER-KCHIRON & STEEL4
In the upper and lower section of the shaft, thelining must withstand severe abrasion caused bythe iron ore and gas circulation. Due to thesestresses we rely on highly abrasion-resistant brickand concretes which resist the reducing atmosphere and temperature changes at the same time.Here STEULER-KCH offers a combination of highgrade fireclay and phosphate-bonded high-alumina bricks which reliably withstand the requiredconditions.State-of-the-art brickwork lining conceptsfor Midrex shaft furnacesThe gas inlet or „bustle area“ is certainly one ofthe most sensitive zones in the reduction shaft –and one of the most highly stressed ones as well.The refractory brick lining there is subject to extreme conditions, especially at the gas inlet nozzles.The brickwork lining must resist heavy wear, extreme temperature changes and the reducing gas.STEULER-KCH has developed special materialsfor this application. Andalusite, corundum, fusedmullite or zirconium-based materials are usedhere. These materials are capable of providingthe required resistance to wear, temperaturechange and reduction by CO and H2.5IRON & STEELSTEULER-KCH
Refractor y products for ingot castingModern ingot casting steelworks need extremely high qualityrefractory products to line the channels feeding their moulds. Thesteel blocks must be free of non-metallic inclusions and also havea consistent chemical composition and a homogenous structure.With high quality, high alloy steels such as manganese steels,STEULER-KCH relies on the material B 80UG with a reactionbonded mullite matrix and free SiO2 contents of less than 1.5%.The use of these refractory materials keeps the casting channelsfrom widening and prevents alumina inclusions.The special design of the tongue and groove joint generallyeliminates the need to use mortar when laying the bricks, evenin case of very high ferrostatic pressure.Highly experienced in bottom-pour casting, the team fromthe development department and application engineering atSTEULER-KCH is always available to provide assistance in theselection of refractory materials.STEULER-KCHIRON & STEEL6
Refractory materials for hydrochloric acid regenerationIn the steel pickling process, the iron-laden chemical cleaningsolvent is regenerated either in spray roasting or fluidised bedplants. The objective is to regenerate the hydrochloric acid completely and return it to the pickling process. Iron oxide forms as aby-product, which can also be used as a raw material.For both types of furnaces, Steuler supplies fireclay and andalusite grades and insulation materials along with the refractoryengineering and installation all from a single source.Avove: Upper section of a reactor with three-layer wall construction and monolithic ceiling mounted with anchors.Above: Multilayer refractory lining comprising sheet metal protection, insulatingbricks and refractory wear layer.7IRON & STEELSTEULER-KCH
Steuler Técnica S.L.SpainSteuler France S.A.R.L.FranceDitescor S.A. de C.V.MexicoSteuler Maroc S.A.R.L.MaroccoAlphaplast S.A.SpainSteuler Nordic ABSwedenShanghai STEULER-KCHAnticorrosion EngineeringCo. Ltd.ChinaCIMA S.r.l.ItalyKCT Sp. z o.o.PolandSteuler IndustrialCorrosion ProtectionPty. Ltd.AustraliaSteuler New CaledoniaS.A.R.L.New CaledoniaSTEULER-KCHBranch Saudi ArabiaTogether with its international subsidiariesSTEULER-KCHBranch Austriacustomers a worldwide network which deve-and representations, STEULER-KCH offers itslops and implements comprehensive systemsolutions.Lining and flooring systemsCements, jointing materials, masonry systems,rubber liningsPlastics TechnologyThermoplastic lining systemsEquipment, piping and tanks made ofduroplastics and thermoplasticsRefractory SystemsHigh temperature refractory liningsSTEULER-KCH GmbHRefractory Systems DivisionGeorg-Steuler-Straße56203 Höhr-Grenzhausen GERMANYPhone: 49 26 24 13-586Fax: 49 26 24 13-305Mail: ff.info@steuler-kch.deSurface Protection SystemsPlastics TechnologyPool ConstructionsBerggarten 156427 Siershahn GERMANYPool ConstructionSTEULER-Q7 lining systemsPhone: 49 26 23 600-0Fax: 49 26 23 600-513Mail: info@steuler-kch.dewww.steuler-kch.deAll data relate to our current state of knowledge; they do not represent quality specifications.Technical details subject to change.Surface Protection Systems
reduction furnace. There is an increasing demand for innovative refractory concepts to raise the efficiency of the plants. Now in ad-dition to the high stresses already imposed on the refractory lining by the reducing atmosphere and temperature changes, material throughp
Refractory gout is a rare form of severe gout. Both gout and refractory gout are very painful, but refractory gout more often leads to serious problems like permanent joint damage and trouble with moving and walking. Refractory gout may not go away with standard treatments. Other medicines may be needed. P
Refractory Solutions for Aluminium Refractory Installation Refractory Services, as part of the Capital Refractories Ltd group, is here to offer full turnkey solutions for furnace refractory installations. Whatever the job, and whatever the location, or installation, we have a team of exper
The total cost of a refractory is the sum of the cost to purchase the refractory, install the refractory, and maintain the refractory. The patented refractory technology in the WAM AL family of products helps to inhibit the formation of corundum, which extends
Reduced refractory life: Inferior refractory linings will be replaced sooner than will high quality systems Increased maintenance that can lead to increased downtime Greater possibility of refractory failure resulting in emergency outage The cost of
Iron, zinc plating 2 E3C-S50 (8) E39-L40 Iron, zinc plating 1 Phillips screws M4 25 (with spring and plain washers) Iron, zinc plating 2 E3JK Nuts M4 Iron, zinc plating 2 E39-L41 Iron, zinc plating 2 Phillips screws M3 14 (with spring washers) Iron, zinc plating 4 6 E3C-1 (10) Plain washer M3 Iron, zinc plating 4 E39-L42 Iron, black coating 2
end-users and refractory material suppliers can help all involved to better understand the details required to significantly reduce the likelihood of refractory failures. in this article, energy sK and Morgan examine some of the most common causes of refractory failure, and what engineers
Classification of refractory materials Typically, refractory materials are based on one or more of six high melting-point, crystalline oxides (Al 2 O 3, CaO, Cr 2 O 3, MgO, SiO 2, ZrO 2), as well as carbon, or a combination of these (Ewais, 2004; Carniglia and Barna, 1992; Routschka and Barthel, 2008). Refractory materials can be classified .
Advanced Engineering Mathematics E Kreyszig; Wiley; 2001 4. Calculus, R A Adams; Pearson; 2002. Calculus (6th Edition) E W Swokowski, M Olinick, D Pence; PWS; 1994. MT1007 Statistics in Practice Credits 20.0 Semester 2 Academic year 2019/20 Timetable 11.00 am Description This module provides an introduction to statistical reasoning, elementary but powerful statistical methodologies, and real .
