Variable compositions or shapes of differing lengths or geometries are optimized for your melting point and basic oxygen steelmaking. The refractory block (20) is carried by a mounting unit (25) and having a proximate end (26), which can be introduced into the taphole. Resco Products understands the detail it requires to create a BOF that stays in service. The lining thickness of BOF 1 was detected by laser contouring system. +1 412 375-6600, Technical-Marketing@thinkHWI.com The safety lining in the BOF / Q-BOP is typically tasked to perform a single campaign potentially coving many years. Since 2000 Resco Products has been one of the leading producers of Basic Oxygen Furnace (BOF) refractories in North America. A 2300°F rated, alumina silica ceramic fiber blanket, A 2600°F rated, alumina silica zirconia ceramic fiber blanket, An 81% alumina brick with a silicon carbide and carbon addition, An AMC material that may be Iso-Pressed for use as ladle well blocks and pocket blocks, An Iso-Pressed magnesia and graphite ladle weel block and pocket block, An Iso-Pressed magneisa and graphite taphole, A 50% alumina brick designed for thermal shock resistance, A 90% alumina, mullite bonded brick with low porosity, A fireclay based, conventional cement gunning mix, A fireclay based, conventional cement castable, A 2600°F dense, abrasion-resistant, gunning castable, Magnesia-Carbon brick for Steel Ladle service, A carbon bonded, alumina-silicon carbide brick, A 65% alumina, slag resistant refractory plastic, A 72% magnesia, dry, heat setting vibratable, A 72% magnesia, dry, heat setting vibratable with an extra hard bond, A 86% magnesia, dry, heat setting vibratable, A 87% magnesia, dry, heat setting vibratable with an extra hard bond, A 87% magnesia, dry, heat setting vibratable, A 96% magnesia, dry, heat setting vibratable, Magnesia-Chrome-Alumina based, Heat-Setting, Ramming Mix, A 77% magnesia, ultra-lightweight spray mix, A magnesia, pitch impregnated burned brick, A 60% alumina, low-cement castable designed for rapid curing, A 70% alumina, rapid turn-around, low-cement castable, A magnesia carbon brick for steel ladle applications, A 50% alumina, phosphate bonded refractory plastic, A 70% alumina, phosphate bonded plastic refractory, An 85% alumina, phosphate bonded plastic refractory, A fine grained, 90% alumina, phosphate bonded refractory plastic, A 90% alumina, phosphate bonded refractory plastic, An alumina-chromium, phosphate bonded refractory plastic, A phosphate-bonded, alumina-chromium ram mix. Refractory materials for different parts of electric ARC furnace (1) Refractories for ARC furnace roof Electric Arc Furnace life refers to the life of furnace roof. Refractory Selection for BOF Converter The bottom of the BOF vessel can be designed for many years of service. The lining of the refractory material was considered as magnesite brick for inner lining, dolomite for intermediate lining and steel shell as outer part. Search through our industries and applications and any questions our specialists are available! life of the refractory lining of the LD converter. HarbisonWalker International provides a full range products for every part of the BOF process, including: Gun mixes are used to extend the life of the vessel working lining. The size, i.e. Safety and working refractory linings are designed to achieve the customer's goals. Mag-Carbon Mixes Pre Castables Slide Gates Nozzles Purge Plugs ISO 2 3 4 1 5 Refractory Lining Life and the Development of Refractory Materials Technology in OXYGEN BLOWING CONVERTERS . Whereas brick working lining in the ladle wears down and becomes hard to repair, when our monolithic lining wears down the hotface can be recast much more efficiently (including Calderys supply of moulds for this concept). the slag to counteract refractory corrosion also differ from the European approach to BOF steelmaking. The BOF converts molten iron and scrap to steel by injecting gases at supersonic velocities. from raw material selection, refractory portofio & optimization, installation & services & recycle of used refractories on site to further reduce client’s Opex & Capex in refractory consumption … The refractory linings in the torpedo ladles have to be replaced periodically. The frequency of refractory relining BOF vessels is down to one per year per furnace or less for conventional top blown vessels; lining life is in the range of 8,000 to 25,000 heats for these vessels with a record of 64,000 heats. The Complete Refractory Solution For BOF Converters Reduced refractory consumption Selecting the correct refractory products for ... bricks that make up the core of any converter refractory lining solution are installed in such a way that normal expansion stresses are taken into account. BOF refractory lining life can be greatly increased due to better adhesion, high melting temperature, and stronger wear‐resistance of the slag layer. Lining thickness (before being BOF 1 for desilicication, 1908th heats). Optimized Lining for BOF RHI Magnesita provides lining concepts which are suited to the customer-specific converter operation and process conditions. |, FIND OUT WHY WE’RE THE RIGHT PARTNER FOR YOU, Contact an HWI expert to get the help you need >, A basic gunning mix with enhanced silicate bond for low rebound and easy build-up, A 97% magnesia, chemically bonded gunning mix. Alibaba.com offers 1,553 bof products. Sec. Resco can produce burned and burned, tar-impregnated compositions as well as a resin-bonded refractory material. Slag splashing provides a refractory coating over the existing lining. and . Optimized Lining for BOF RHI Magnesita provides lining concepts which are suited to the customer-specific converter operation and process conditions. The BOS vessel is tilted towards the slagging side and the steel is poured through a tap hole into a steel ladle with basic refractory lining. Refractory Industry Overview A complex range of tailored refractory products are required for each application Bricks Example of refractory application for steel ladle Monolothics and pre casts Functional products Permanent lining Non-basic, ex. Key words: refractory lining, basic oxygen furnace, mechanism of wearing, gunning material 1. The amount of post combustion taking place in the furnace can be ... • Slag refractory provides a consumable refractory lining which protects the furnace lining. Complete lining concepts including refractory engineering Wide areas of application Project driven demand ... A single basic oxygen furnace (BOF) demands different ... ⬢18 years of experience in Sales for the Refractory Industry, being based in South America, North America and Europe Thomas Jakowiak Resco's BOF solutions provide exceptional integrity for the life of the vessel. BOF refractory life varies significantly. Most shops utilize a single 9" safety bottom using skews in the knuckle or radial transition area of the bottom to the barrel. This required critical transport capacity … It is based on the database of many measurements made using a laser scanner. A wet, resin bonded, heat setting high alumina mortar. Alibaba.com offers 1,553 bof products. BOF vessel capacities can range from 70 to 300 tons. refractory lining, especially in the cone and mouth area, and no negative effects on the metallurgical performance of the process. On a regular basis, the lining is inspected after the vessel has been tapped. Highest campaign lifetime levels … 85% Alumina, Dry Press Brick designed for superior steel ladle performance versus standard 80% alumina brick. In the drawing, the lance 17 would be lowered into the BOF 13 and a nominal amount of oxygen would be blown through lance 17 onto the hot coke. The purpose of a refractory lining in a basic oxygen furnace (BOF) is to provide maximum furnace availability during operation of the converter in order to meet production requirements and to ensure lowest possible specific refractory consumption. 1.4.3.2 BOF Refractory Lining. The design must be balance so wear is uniform and gunning maintenance is kept minimal at high temperatures. Fused magnesite grains and flake graphite are used as raw materials. Most shops utilize a single 9" safety bottom using skews in the knuckle or radial transition area of the bottom to the barrel. European quality, direct deliveries from leading manufacturers, supervised logistics en-route and timely delivery to your door anywhere within the industrial world. Learn about the critical work that our engineers and scientists at the ATRC do... Industry advancements have been greatly influenced by the continued development of global economic diversification. such as paid samples, free samples. Vesuvius BOF maintenances solutions. Supply and assembly of brick pieces (steel shell, brick arrangement inside, castable outside). Working Lining: HWI analyzes individual current and historical shop conditions and offers customized lining solutions. +1 412 375-6756, Customer-Service@thinkHWI.com The apparatus is mounted on a portable cart which can be wheeled into close proximity with the open top of a horizontally disposed furnace vessel. The barrel safety lining is usually 9" in thickness. A 90% magnesia, dry, heat setting vibratable. Basic Oxygen Furnace Typical BOF is a vertical vessel lined with basic refractory. Barrel: BOF 700, 800, and 900 series, which have been carefully customized for optimal metal content, carbon levels, and magnesia purity. Longer lining life not only results in lower refractories cost but it also enables higher productivity through increased furnace availability. Dipl.-Ing. such as paid samples, free samples. Design and development of Steelmaking solutions, including working models, in integrated projects with customers to … Mag-Carbon Mixes Pre Castables Slide Gates Nozzles Purge Plugs ISO 2 3 4 1 5 LMM GROUP supply total solution for linning of EAF/BOF/ladle, tundish etc. Design and development of Steelmaking solutions, including working models, in integrated projects with customers to … The new refractory lining of a BOF is usually "burned in" by placing hot coke in the relined furnace and then blowing a nominal amount of oxygen through a lance that has been lowered into the furnace. Identification of chemical compounds in BOF slag The main objective in the development of refractories for basic oxygen furnace (BOF) is to get a useful lining life of the wear lining so as to obtain maximum availability of the BOF. Basic Oxygen Furnace (BOF) Tuyères and Surrounding Refractories Development Refractory materials are high temperature resistant ceramics used for lining metallurgical vessels. 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