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Achema 2022 Geppert Rührtechnik

ACHEMA LECTURE: CFD

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THE LOCAL ANALYSIS OF VELOCITY GRADIENTS IN STIRRED TANK REACTORS USING COMPUTATIONAL FLUID DYNAMICS SIMULATIONS

As part of the ACHEMA PRAXISforums, Efraim Riess-Gonzalez will present his lecture on “ The Local Analysis of Velocity Gradients in Stirred Tank Reactors Using Computational Fluid Dynamics Simulations“ on Wednesday, 24.8.2022, at 11:10 am, H12.0 – Expert Forum.

The numerical simulation of fluids, better known as CFD (computational fluid dynamics), is nowadays a proven technology that has reached the level of accuracy and robustness that is required in order to be used as a standard tool for the analysis and design of stirred tank reactors, over the last years. Typical unit operation for which CFD can be used are, among many others: homogenization, suspension of solid particles, dispersion of liquid/liquid and liquid/gas systems, heat transfers, etc. On the top of that, the ability to numerically analyze a reactor at each location over the entire fluid volume opens up entire new possibilities.

In chemical or biological stirred tank reactors containing shear-sensitive organism or compounds, the only method regarding the shear-forces to design the mixing equipment was to calculate the averaged velocity gradient (also known as G value [1/s]). This is a global measure for the total dissipated energy into the reactor volume. With the help of CFD simulation shear forces and velocity gradients can be locally quantified and analyzed. The statistical evaluation of volumetric data can help to better understand the reactor behavior in order to optimize processes and also offers a new tool when designing novel mixer geometries that are able to smoothly introduce mechanical energy into the liquid media with lower high peak velocity gradients.

The ACHEMA PRAXISforums are held in the immediate vicinity of the respective exhibition group and focus on industrial applications, new products and services in chemical engineering, biotechnology and the process industry.

Wednesday, 24.8.2022, at 11:10 am, H12.0 – Expert Forum
Speaker: Efraim Riess-Gonzalez, INVENT Umwelt- und Verfahrenstechnik AG, Erlangen, Germany

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Achema 2022 Geppert Rührtechnik

ACHEMA LECTURE: TRIPOD AGITATORS

By Allgemein, News

ACHEMA LECTURE: TRIPOD AGITATORS FOR MOBILE TANKS IN EX-ZONES – REQUIREMENTS AND PRACTICAL SOLUTIONS

As part of the ACHEMA PRAXISforums, Stefan Heuter will present his lecture on „Tripod agitators for mobile tanks in EX-zones – requirements and practical solutions“ on Thursday, 25.8.2022, at 12:00 pm, H12.0 – Expert Forum.

In the world of industrial production tripod agitators stand for flexibility and operational safety at an affordable price. Due to their stand-alone structure not only is installation onto a container unnecessary, but additionally a whole variety of container sizes can be used. In the chemical and pharmaceutical industries with their large range of products this is often an essential requirement. And there are additional requirements when stirring explosive media.

Liquids that below atmospheric conditions are explosive (zone 0), with a less conductivity, may only be agitated under special conditions. Inerting is required by adding inert gases to displace atmospheric oxygen from the tank. This is hardly a problem for permanently installed tanks. Yet, if mobile tanks are to be used, up until now there has really never been a practical solution.

To solve this problem, Geppert Rührtechnik is relying on the proven tripod agitators, with which even the most hazardous of substances can be agitated in mobile tanks. The design of them takes into account the tank size as well as the hazard potential of the liquids. Barrels with 40 liters up to 1,000 liters stainless steel IBCs are possible. The controller features the required performance levels and allows easy operation. The fluid-mechanical, controlled inert gas flow ensures that only a minimum of inert gas is consumed. As such, the explosion protection around the floor stand mixers, typically zone 1, can be strongly limited.

The tripod agitators from Geppert Rührtechnik feature a wide range of application capabilities due to their flexible modular system – from the simplest application up to complex production plants in which dosing, process data recording and control can be integrated. Since 2003, Geppert Rührtechnik has been a certified manufacturer of explosion protected agitators.

Geppert Rührtechnik shows a series of interesting examples of real-world applications for different kinds of process industries.

The ACHEMA PRAXISforums are held in the immediate vicinity of the respective exhibition group and focus on industrial applications, new products and services in chemical engineering, biotechnology and the process industry.

Thursday, 25.8.2022, at 12:00 pm, H12.0 – Expert Forum

Speaker: Stefan Heuter, Geppert Rührtechnik GmbH, Germany

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OUR TRIPOD AGITATORS

MANUFACTURER GEPPERT RÜHRTECHNIK IS CELEBRATING ITS 50TH ANNIVERSARY

By Allgemein

Erzhausen, Germany, June 2021

This year, Geppert Rührtechnik GmbH in Erzhausen in southern Hessen, Germany, is celebrating its 50th anniversary. On this occasion, we want to take a brief moment to look back at half a century of mixing technology achievements and their developers. Managing Director Markus Fuchs explains the secret of the company’s success, and the three major milestones that mark its history.

In 1971, when engineer Horst Geppert established the company in the small town of Dreieichenhain, not too far from where it is located today, he definitely had no idea that it would grow to become a solid, medium-sized company within five decades.

Consistently new and improved developments of agitators for any kind of application led to a significant product portfolio and, combined with expertise and specialized consulting, appealed to a large group of customers from large-scale industry and medium-sized companies. A full range of customer types from all branches of the processing industries, such as chemicals, pharmaceuticals, biotechnology, pulp and paper or food as well as in water and wastewater treatment.

Thanks to 50 years of experience in mixing technology and expertise in process engineering, the company today occupies a market position that allows it to offer tailored solutions, even for the most challenging task, like no other competitor.

Together with INVENT prepared for growth

The current management team made up of Stefan Heuter and Markus Fuchs has designated three events after the move to Erzhausen in 1993 as milestones in the company’s history. The milestones include the transformation from a manufacturer of agitators to a specialist for potentially explosive atmospheres and certified in 2003 in accordance with ATEX RL 2014/34/EU. Other milestones included the construction of a state-of-the-art company building in 2011, which houses expanded production and testing capabilities and, more recently, investments in high-performance machines for series production.

In response to the question about the secret of success, Markus Fuchs says: „We are a proven partner for our customers both for small to medium batch quantities, but also for individual products ranging from tripods with agitators to large agitators or in the ATEX version (i.e. those that feature explosion protection).“

Geppert Rührtechnik experienced a boost in terms of fluid mechanics expertise when it merged with INVENT Umwelt- und Verfahrenstechnik AG from Erlangen in 2016. It develops, produces and distributes innovative components and reliable plants and systems designed to clean and treat wastewater energy efficiently. Since then, many processes have been updated, digitalized and the course has been set towards more standardized processes and growth.

„The right product at the right time in the right quality!“

Even last year, when we were all affected by COVID-19, the company managed to stabilize lead times – despite material bottlenecks, price increases on the material market and other delays caused by the pandemic.

„I am pleased and relieved that even under pandemic conditions we were able to adjust our processes within the company to allow the customer to benefit,“ Markus Fuchs sums up the current situation. „The right product at the right time in the right quality! That’s what sets Geppert Rührtechnik apart.”

The CEO is looking toward the future with optimism and has plans to continue to expand the leadership role in the market the company has achieved, while continuing to play an increasingly active role in the international market. The envisaged expansion will require qualified staff, and this is probably the greatest challenge, because skilled workers are in short supply. „Our employees are our most valuable asset. Without the dedicated team at the Erzhausen site, we wouldn’t be able to get anything done,“ Markus Fuchs knows and is soon planning an employee celebration to mark the anniversary, which will of course adhere to COVID-19 requirements.

EX-PROTECTION IN MOBILE TANKS

By Allgemein
ATEX Explosionsschutz Zertifikat EX Zone 0 Geppert Rührtechnik GmbH

According to TGRS 727 and EN ISO 80079-36:2016-12, liquids that below atmospheric conditions are explosive (zone 0), with a conductivity of less than 10-8 S/m, may only be agitated under special conditions. Inerting is required by adding inert gases to displace atmospheric oxygen from the tank. This is hardly a problem for permanently installed tanks. Yet, if mobile tanks are to be used, up until now there has really never been a practical solution.

To solve this problem, Geppert Rührtechnik is relying on the proven tripod agitators, with which even the most hazardous of substances can be agitated in mobile tanks. The design of them takes into account the tank size as well as the hazard potential of the liquids. Barrels with 40 liters up to 1,000 liters stainless steel IBCs are possible. The controller features the required performance levels and allows easy operation. The fluid-mechanical, controlled inert gas flow ensures that only a minimum of inert gas is consumed. As such, the explosion protection around the floor stand mixers, typically zone 1, can be strongly limited.

The tripod agitators from Geppert Rührtechnik feature a wide range of application capabilities due to their flexible modular system – from the simplest application up to complex production plants in which dosing, process data recording and control can be integrated. Since 2003, Geppert Rührtechnik has been a certified manufacturer of explosion protected agitators.

MARKUS FUCHS NEW CEO

By Allgemein

Since January 1, 2020, Markus Fuchs took over the position of the new CEO and Managing Director of Geppert Rührtechnik GmbH. Markus Fuchs was previously responsible as Managing Director Operations and Plant Manager at international and national locations. Further positions led him to a leading manufacturer of products for ventilation technology and to the market leader for drive and damping technology.

EUROPEAN COATINGS SHOW 2019

By Allgemein

European Coatings Show 2019

The ECS European Coatings Show took place in Nuremberg from March 19 to 21, 2019 – the meeting place for the international world of paints and coatings. Geppert Rührtechnik was represented in hall 6, booth 6-335.

The range of products at the ECS reflects the innovations in paints and coatings. Trends and technologies covering all aspects of the production of paints, coatings, sealants, construction chemicals and adhesives.

We would like to thank all our visitors for the interest shown towards Geppert Rührtechnik and our products and for inspiring conversations!

ACHEMA 2018

By Allgemein

From 11 to 15 June 2018, the eyes of the chemical and process industries will once again focus on Frankfurt with the ACHEMA 2018. We are looking forward to welcoming you at our booth B 41 in Hall 5.0!

Make a note of our presentation about the applications of tripod agitators!

Topic: Tripod agitators for mobile tanks in production and pilot plants – requirements and practical solutions
Date: 12 June 2018, 10:30 am
Room: H4.C – Consens

We would like to thank all our visitors for the interest shown towards Geppert Rührtechnik and our products and for inspiring conversations!

TRIPOD AGITATORS FOR PRODUCTION AND PILOT PLANTS

By Allgemein

In the world of industrial production tripod agitators stand for flexibility and operational safety. Whereas in former days single components were required, Geppert Rührtechnik GmbH now offers complete tripod agitators, equipped with the most up-to-date process control. These machines offer flexibility of application, meet the maximum needs of reliability and provide ease of cleaning and maintenance.

It occurs more and more often that entire stages of production and packaging are executed in small-to medium-size containers that are either mixed in or that are filled or emptied. Due to the tripod agitators’ stand-alone statics they do not need to be installed onto the container. Applications for various container sizes, shapes or volumes are no problem at all. All requirements with regard to process data collection and processing as well as with regard to plant automation are met. Even online viscosity measurements are possible. For requirements that arise from the products themselves or the environment of the production area, such as hazardous areas in and around the containers, clean room conditions and TA Luft, Geppert Rührtechnik offers taylor-made solutions with their tripod agitators. Special designs, such as tripod agitators for fixed container mixers or fully automated plants, which are used in the areas of clean room technology or nuclear waste processing, complete the range of products.

Geppert Rührtechnik has been producing explosion-proof mixer drives since as early as 2003, which made them one of the first enterprises in Germany to develop and produce ATEX-compliant mixers. The tripod agitators can also be delivered as explosion-proof models according to ATEX RL 2014/34/EU for use in hazardous zones 1 and 2 as well as containers with hazardous zones 0 to 1.

Allow Geppert Rührtechnik’s CEO Dipl.-Ing. Stefan Heuter to demonstrate an array of his interesting applications to showcase the tripod agitators’ possibilities. His talk, as part of the ACHEMA Praxisforum, is scheduled for Tuesday, June 12, 2018 at 10:30am in Room H4.C – Consens. Or visit us at the ACHEMA, booth B 41 in exhibition hall 5.0.

Meet the experts in mixing!

GEPPERT AT ECS 2017

By Allgemein

The ECS European Coatings Show 2017 in Nuremberg continues to expand its position as the leading event for the global coatings industry. More than 30,000 trade visitors and 1,135 exhibitors from 40 countries – the ECS 2017 was bigger and more international than ever.

Geppert Rührtechnik GmbH is very satisfied with the trade show and the visitor numbers at our booth. In addition to the well-known container- and drum-mixers the visitors were very interested in our tripod agitators with 4.0 applications.

Thank you for visiting our booth and for your interest in our company and products! We look forward to assisting you with your most challenging mixing applications.

OUR NEW BUILDING

By Allgemein

The new company bulding is ready and the move starts. In addition to the daily work the Geppert employees managet all the difficulties with full power. Due to the enormus engagement from the Geppert emloyees also the unexpected problems could be handeld in a a very professional way. To avoid delivery delays all the little and big things are packed and unpacked following a masterplan.

The wide doorway in front of the shipping area ensures that the outgoing material can be shipped fast and professional. To avoid demaged of the good and to protect the receiver of the goods a big projecting roof protects the empolyees and the goods.

Because of the modern ramps the load or unload is for little trucks or big motortrucks very easy possible. The forklifts can directly go to the trucks. To avoid demaged of the good and to protect the receiver of the goods a big projecting roof protects the empolyees and the goods.

With more than 1000 qm and 7 meters height the production hall is the centerpiece. Modern cranes helps to put the very heavy premium stell waves and engines together. Therefore the transport from all those heavy pieces can be done without physical strenght.