Optimising your EAF and Offgas System. Tools & Equipment

Transcription

1 Optimising your EAF and Offgas System Tools & Equipment

2 BSE Energy Input Solutions Maximise your output with efficient input! NEW DESIGN! Exclusively available at BSE Optimising the electrical energy and adding chemical energy are major steps for maximum efficiency in EAF steel production. The energy input concept by BSE represents a system family of sidewall and slag door input devices for chemical energy, current conducting electrode arms, hard- and software for measurement, control and analysis plus decades of experience in EAF steel production. A winning combination that can help you to get the maximum performance out of your EAF and turn cold spots into hot production figures. Virtual Lance Burner (VLB) Side wall and EBT mounted device for oxygen injection. Fuel is either gas or oil. Virtual Lance Injector (VLI) VLB-type device achieving the shrouding effect without gas (only applicable for special furnace operations, e.g. hot metal). Solid Material Injector Side wall and EBT mounted device for injection of solid materials like carbon, lime and fines. Lance Manipulator In addition to the wall mounted devices, BSE has pioneered ed the slag door lancing technology ogy with highly efficient consumable lances. Tiltable VLB with vertical tilting motion providing different injection ion angles to meet various process requirements. Electrode Arms The current conducting electrode arms increase active power input, furnace availability and overall productivity. Control & Visualisation PLC based automation with integrated TopArc function (closed loop control of carbon and oxygen) and operatororiented visualisation. Media Supply Technology Advanced valve rack technology for oxygen/gas featuring individual control for each line and additional safety features. Training and Services at Customer Process optimisation by BSE experts, utilising the know-how of own steelplant operation and experience of customer installations worldwide. Advantages. Highest possible energy transfer into scrap and steel. Improved and continuous slag generation. Faster decarburisation and less oxygen consumption. Consistency from heat to heat. Compatibility with various input materials, operation types and steel grades. Complete system solutions, tailor-made to the customers individual EAF situation. Design based on own operational experience for highest efficiency and easy maintenance. Extremely rugged construction ensuring operation with an availability of nearly 100 %. Optimal foamy slag one of the results of effective carbon injection. Smart visualisation for quick access to each component of the system and control of total energy input. 2 3

3 BSE Offgas System Solutions Clean and efficient! Backed by the long standing know-how based on our own steel production, BSE provides analysing tools, engineering and key components for complete offgas systems that improve productivity and cost efficiency along with strict compliance with environmental legislations. Fluid Dynamic Model (FDM) Simulation of all heat and dust sources influencing the building ventilation by using a scaled Plexiglas replica of the melt shop. The FDM, provided and performed by our subsidiary Bender Corporation, is an easy, accurate and economical tool to understand and improve the inside shop conditions. Computational Fluid Dynamics (CFD) Investigation with the aid of computer modelling to look into details of critical items and optimisation of mixing and distribution, pressure drop and local exhaust hoods. The Computational Fluid Dynamic guarantees a smooth enginee-neering process and highest per- formance of the designed dedusting systems. Efficient Dedusting Control (EDC) Smart control and visualisation ation of the entire offgas system. The EDC collects realtime mation of all key components, infor- High Temperature Quenching (HTQ) Rapid offgas cooling from direct furnace evacuation by injection of atomised water preventing de-novo synthesis of dioxin/ furan. HTQ system consisting of a water spray chamber, a set of spray lances and a valve rack regulating the water amount according to process requirements. Advantages. Improved dedusting efficiency in Am³/kWh. Reduction of specific dedusting costs in Cost/Am³. Less dust deposit in the ducts. Better bag house utilisation by reduced and stable temperature. Simplification of emission control. HTQ as an economical solution for dioxin/furan reduction. Lower pressure drop in the DEC duct. Most economic analysing tools for improvement of building ventilation with FDM and optimisation of component details with CFD. Atomised water injected into water spray chamber by multiple spray lances analyses it and anticipates accordingly. HTQ valve rack with intelligent regulation of water flow ensuring a constant offgas outlet temperature and protection of the bag house against peak temperatures. 4 5

4 Measurement & Control Trust is good, control is better! BSE Engineering and Delivery Guarantee In Budget. In Schedule. In Expected results. Multifunctionality Rapidness & Reliability Operator Safety Best Technology MultiROB Implementation of a standard industrial robot upgraded with special equipment and features for steel plant operation at EAF, LF or BOF. Basic functions: Temperature and sample taking Automatic cartridge exchange Tool exchange Furnace inspection with camera Intelligent casing design for effective heat protection and reliable operation. TempSamp Manipulator (TSM) Classic BSE tool giving precise information about steel temperature and quality while increasing the safety of operators considerably. Rigid steel construction with base plate, swiveling arm and water-cooled lance carrying system. Various solutions for EAF, LF and converter tailor-made for local circumstances. Cartridge exchange rack for automatic sample taking/temperature measuring cycle. Lance Manipulator LM.2 Space-saving combination of slag-door injection with Temp Samp unit on one column with two independent swiveling arms. Delay Recording System (DRS) Process analysis tool for steel plants that don t have a Level 2 automation system yet. The DRS is operated by the melter at the furnace and helps in the fight against delay times, thus providing a huge potential for productivity increase. BSE provides solutions that even exceed the customer s expectations. Basic principles. Dedicated steelmakingprocess-oriented approach, based on the operational experience of our own BSW steel plant, one of the world's most efficient mini-mills. Close partnership with the customer for incorporating their invaluable know-how and setting of goals for mutual success. Implementation of state-ofthe-art technology under close consideration of all neighbouring equipment. Design and solutions selected under strict consideration of the easy to maintain and operate aspect. Optimum utilisation of already existing equipment. Calculation of expected performance values, benefits and payback estimations. Project concept. Detailed investigation of current situation on site, customer needs and process requirements. Elaboration of individual and tailor-made solutions. Project execution and management in close cooperation with the customer. Applying the KISS (Keep it simple and stupid) principle for maximum operational reliability. Start-up and commissioning with personnel with operational background from our own production facilities. Detailed investigation on-site and engineering excellence at BSE Your key advantages. Increase of efficiency and productivity. High availability at lowest possible operation and maintenance cost. Optimum capital planning and employment by: - Meeting the warranted contract price and estimated customer budget - Meeting the delivery time and required downtime for installation - Meeting the calculated and expected performance figures and economical results combined with local experience of the customer are all key factors for successful projects! Fully automatic tool exchange... also enables the usage of a 6 camera tool for furnace inspection. 7

5 Tools & Equipment Consulting & Qualification Engineering & Projects Services & Spare Parts We are Steelmakers! BSW and BSE a unique partnership that will help you to reach even ambitious goals. Since 1983, the Badische Stahl-Engineering GmbH (BSE) has been acting as a service provider for increasing the efficiency and productivity in the electric steel industry worldwide. BSE is a sister company of the Badische Stahlwerke GmbH (BSW), one of the world s most efficient Electric Arc Furnace steel plants. This unique partnership between BSW and BSE ensures that all products and services provided by BSE are not just based on mere theory, but on more than 4 decades of own proven operational experience. Badische Stahl-Engineering GmbH Robert-Koch-Straße 13 D Kehl/Germany Phone (+49) 78 51/877-0 Fax (+49) 78 51/ info@bse-kehl.de BSE America 1811 Sardis Road North, Suite 210 Charlotte, NC Phone (704)