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Mechanical Vacuum Systems
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Ceybold Mechanical Vacuum Systems for Secondary Metallurgy Steel Degassing

Utmost Efficiency VD / VOD processes Vacuum Degassing (VD) for low alloy steels; Vacuum Oxygen Decarburising (VOD) for stainless steels. VD treatment is used to reduce the volatile gas content (e.g. hydrogen, oxygen, nitrogen) of the steel to enhance the steels capabilities. VOD treatment involves an additional oxygen blowing step for carbon removal. Oxygen blowing is also used for decarburising unalloyed or low alloyed grades (VD-OB) and for chemical heating. VOD Vacuum Oxygen Decarburization Challenges to the Vacuum System VD process • The vacuum system must handle the complete gas-flow...

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through vacuum RH-O (Ruhrstahl Heraeus) process: Typical Cooler / Filter combination Challenges to the Vacuum System RH / RH-OB (Ruhrstahl Heraeus) process • Process challenges are similar to VD and VOD. As tonnages are higher and as the protection of the oxygen lance requires huge amount of additional inert gas flow, the typical suction speed demand at the degas sing pressure (~0.67 mbar) can go up to >1,000,000 m³/h Gas cooling • Duing all forced decarburisation processes with oxygen blowing the vacuum system needs to operate long time in a rough pressure range. • An efficient gas-cooling...

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Leybold provides you innovative vacuum solutions for secondary metallurgy applications. Benefit from our long-term experience being a worldwide leading supplier for tailor-made concepts based on customer demands. [Ceybold Mechanical vacuum systems are practicable, reliable and powerful tools for efficient operation of steel degassers. State-of-the-art mechanical pumps employ a very reliable design, enabling the pumps to survive inside the rough steel plant environment. By installing standard pumps in multiple arrangements, even highest suction speed requirements can be fulfilled at a...

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Standard vacuum components are produced in high numbers, thereby offering low cost, fast availability and highest quality, ensured by stringent production standards according to ISO9001. Our pumps can be repaired on site by trained service people. A back-up pool with pumps is available in many locations worldwide in case field service is not applicable. Mix and Match ... Today, mechanical vacuum systems combining Roots blowers and dry screw vacuum pumps are the accepted industrial standard. These modern mechanical pump solutions help to reduce operating costs and CO2 emissions while...

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Our System Solutions Two standard products are optimally combined into standardized skids. To reach the optimal combination of highest suction speed and lowest power consumption, a three stage system design is applied. According to a “building block concept”, each skid can be individually designed and optimized according to the specific suction speed and pumpdown requirements of the specific degassing process. Flexible system design: 10-2-3 system configuration special customer demand Process-adapted control system - First stage 2-4 parallel DRYVAC DV1200 as backing pumps for fast pump down...

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System Solutions Typical System Design Advantages consisting of RUVAC WH 7000 roots blowers and DRYVAC DV 1200 dry vacuum pumps • Mechanical vacuum systems from Leybold offer a “push-button” availability, without power consuming stand-by operation • Guaranteed suction speed and pump-out time • Fastest availability of optimized systems and standard products on the market • Easy extendable, prepared for later extensions • Most compact solution with lowest noise emission • Minimized total cost of ownership. Our pumps and systems are optimized for lowest power consumption as standard • Optional...

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RUVAC WH Roots Blowers RUVAC WH Roots pumps attain high pumping speed and best ultimate pressure with maximum safety in modern industrial applications. The smart design of the pumps combines highest robustness with the most compact roots pump design on the market. Operation with frequency converter optimizes the power consumption and protects the Roots pump against thermal overloads. Pumping speed: variable from 720 to 9,800 m3/h (with frequency converter) DRYVAC Vacuum Pumps Product and Process Benefits - High tolerance to dry metallurgy dust - Extreme robust, wear-free design -...

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