Tag Archives: plant

Environment Energy

Rotor Impact Mill turns previously unusable automotive shredder residue into a valuable resource

Recovering metals from fine shredder fractions: Non-ferrous metal fractions become usable thanks to enhanced processing.

Rotor Impact Mill turns previously unusable automotive shredder residue into a valuable resource

The BHS Rotor Impact Mill of type RPMV is shown in the center

Kajaanin Romu Oy operates one of Finland“s most advanced plants for recycling scrap in the town of Kajaani, located approximately 500 km northeast of Helsinki. The company recently commissioned a BHS-Sonthofen plant for processing automotive shredder residue (ASR) fine fractions of particle sizes between 0 and 30 mm. It separates the feed material abundant with valuable metals into „light“ and „heavy“ fractions in a single pass. This allows the plant operators to economically produce fractions that can be sold profitably. Moreover, the plant significantly reduces the cost of material disposal at landfills.

Experience with operating shredders in the context of recycling has proven time and again that heavy non-ferrous fractions of material left over after shredding and processing large automotive, electrical or electronic scrap components still hold value. A metric ton can contain up to 20 grams of gold and up to 300 grams of silver, as well as platinum and other precious and non-ferrous metals.

Operators report that they are able to earn about EUR 3,000 per metric ton just from selling the heavy fraction of non-ferrous metals. BHS has taken improved fine fraction processing even further by integrating secondary cleaning of metals into the processing stage. This allows Finnish operator Kajaanin Romu Oy to unlock the value of reusable materials present in the ASR fine fraction. The system delivers a throughput of around 10 metric tons per hour.

At the end of the process, even the non-ferrous metal fractions are cleanly separated in silos. This includes heavy ones such as copper, gold and silver as well as light fractions such as aluminum. Presently, the proportion of salable non-ferrous metals amounts to about five to seven percent of the processed volume.

BHS-Sonthofen ASR systems do not only process fine fractions from automotive shredders. They are also suitable for processing waste incineration plant slag and electronics scrap. This means that recycling companies can adapt their product portfolio to meet increasing requirements: The higher the proportion of electronic components and platinum in vehicles and electronic devices, the greater the volume of valuable substances that can be extracted for reuse.

The technology in detail

The plant installed at Kajaanin Romu is fed fine fractions with a particle size of under 30 mm from the automotive shredder. In other words, it processes fractions that could not be used prior to introducing this system. The Rotor Impact Mill of type RPMV 1513 – a system uniquely offered by BHS-Sonthofen – crushes the material and separates it. In doing so, it works selectively, finely crushing brittle materials such as mineral substances, glass and castings and separating composites. Elastic materials such as rubber, on the other hand, remain intact.

The metals can be reclaimed since the Rotor Impact Mill shapes the pliable metals into balls. This is necessary in order for non-ferrous metals to be cleanly separated from other materials in the downstream process. The material, which is often long and flat when inserted into the mill, has to be compact and as round as possible to enable separation of the non-ferrous metal pieces.

Following this step, the material passes through a hopper into a screening machine that separates it into three fractions of 0 to 3, 3 to 6, and 6 to 12 mm. Each of these is separated into „heavy“ and „light“ through density separation. The heavy material that contains the metallic components is further separated into magnetic and non-magnetic metallic fractions using magnetic separators.

In the final processing stage, non-ferrous metals are separated into heavy (e.g., copper, gold and silver) and light (e.g., aluminum) fractions.

Moreover, the plant also generates a light fraction that primarily consists of plastic parts. This fraction is suitable for thermal utilization and does not need to be disposed of at landfills.

About BHS-Sonthofen GmbH

BHS-Sonthofen GmbH is an owner-operated group of companies in the field of machinery and plant engineering based in Sonthofen, Germany. The company offers technical solutions for mechanical process technology, concentrating primarily on mixing, crushing, recycling and filtration. BHS-Sonthofen has a global presence, with more than 350 employees and several subsidiaries.

The Recycling Technology division offers a broad range of machines and plants for the recycling industry. The product portfolio comprises recycling machines for processing and pre-/post-shredding a diverse range of recyclable and waste materials using crushing and cutting technology. This includes scrap, shredder residual fractions, slag and incinerator bottom ash as well as tires, cables, refuse-derived fuels and domestic, commercial and industrial waste. Moreover, we plan and implement complete turnkey recycling plants for our customers.

For further information, please visit: www.bhs-sonthofen.de

BHS-Sonthofen GmbH
Roland Schmid
An der Eisenschmelze 47
D-87527 Sonthofen, Germany
Phone: +49 8321 6099-231
E-Mail: press@bhs-sonthofen.de
Url: http://www.bhs-sonthofen.de

VIP Kommunikation
Regina Reinhardt
Dennewartstr. 25-27
52068 Aachen, Germany
Phone: +49.241.89468-24
Fax: +49.241.89468-44
E-Mail: reinhardt@vip-kommunikation.de
Url: http://www.vip-kommunikation.de

Science Research Technology

Strategic cooperation between Georg and Güdel Group

Transformer core production on the way to industry 4.0 / IoT

Strategic cooperation between Georg and Güdel Group

The development of an offline e-stacking solution for automatic stacking of transformer cores.

Heinrich Georg Maschinenfabrik and Güdel Group AG concluded a cooperation agreement for the collaborative development of lines for the automatic stacking of transformer cores. GEORG brings in their know-how in the plant engineering field, Güdel the robot technique for the automatic stacking of the laminations. That way, systems are constructed in the future that speed up the production of transformers, reduce manual time and enable a higher production flexibility. Furthermore, the intensive data transfer prepares the ground for industry 4.0 / IoT.

GEORG is leading in the manufacture of production lines for the transformer industry and already has own automation solutions. However, for the manufacture of power and big distribution transformers of up to several hundred tons, many GEORG customer often still stack the individual laminations for the transformer cores manually which is very time consuming. The potential of modern handling systems and the networking of data often remains unused so far. Especially for offline systems, there are only few highly automated systems.

On the basis of their gantry robot, Güdel has already developed an automatic core stacking system for transformers in the 50 kg to 350 tons weight range which was put into operation at a leading European transformer manufacturer. The in-house manufactured gantry robots do not require any external centering units thanks to their high positioning accuracy and repeatability and thus reach significantly lower production times.

With their leading technologies, Güdel Group realises solutions for motion tasks in the individual automation. Martin Sträb, CEO of Güdel Group, emphasises „we will be able to work out even better automation solutions for the transformer industry together with our partner GEORG. The efficiency will be increased further and thereby also the satisfaction of our customers. I look forward to our collaborative work“.

GEORG brings in profound knowledge of the entire line technique in the transformer industry – from the decoiling of the strip from the coil over the cutting-to-length of the strip to the cutting of the laminations and the stacking of the cores. Güdel contributes the robot handling systems and the networking of the individual components among each other.

As there are several GEORG customers who cut ahead and stock laminations which they want to stack to a core with an offline system at a later stage, the focus for the first common projects will be the development of an offline system for the automatic stacking of transformer cores.

The laminations cut by the GEORG line and interim stored are picked up and stacked fully automatically by the Güdel robots. For the positioning, the robots achieve highest accuracies and beyond that accelerate the core stacking process significantly. The direct data transfer from the cutting line to the robot unit makes time-consuming manual processes redundant. By this data coupling, the new systems can be easily integrated into digitally networked environments and thus prepare the ground for industry 4.0 / IoT.

Bernd Peter Schmidt, Managing Director of the transformer business division at GEORG sees considerable benefits for his customers: „By the cooperation of our two companies – who both have an outstanding reputation in their respective field – we will deliver complete systems that make the stacking of the laminations much more effective. We make use of the vast experience and well-proven standard components of Güdel. This means for our customers: innovative and at the same time reliable technology with considerable cost advantages.“

Rocco Montalenti, General Manager Business Unit Technologies at Güdel relies on the market knowledge of GEORG: „For more than 30 years, GEORG manufactures transformer lines and has an impressive market share worldwide. The GEORG employees know the conditions in the transformer industry inside out. By this, we are able to elaborate single-source solutions together that are exactly adapted to the requirements of our common customers.“

The cooperation is in accordance with the philosophy of both companies to offer optimal solutions for smooth transformer production processes.

About Georg

For high-tech solutions in plant engineering Georg is worldwide a renown partner. The advanced finishing lines and special purpose machine tools as well as production lines and units for the transformer industry are internationally in operation at well known companies. With its different product areas the family company, in its third generation with 450 employees, serves various markets and customers worldwide. Georg is organized in divisions with three individually operative business units working on the market as profitcenters.

The business divisions Georg finishing lines, Georg transformer lines and Georg machine tools are supported by an own manufacturing division at the company headquarter in Kreuztal / Germany (NRW). In addition a number of central functions are grouped in the division Georg corporate services. Internationally the company is close to its customers with a worldwide sales- and service network.

Georg transformer lines

As technology and world market leader Georg engineers with creative step ahead in technology efficient and advanced machinery, lines and units for transformer production. More than 900 lines supplied worldwide to well known transformer manufacturers underline the trust in leading Georg technology.

For further information, please visit: www.georg.com

Güdel Group AG

Güdel Group is manufacturer of high-precision machine components and supplier of intelligent automation solutions. The product range comprises linear guideways, racks, pinions and gears as well as linear and rotary axes and gantry robots. Güdel puts the products together to achieve systems with special control intelligence and complete lines which are used in the sectors automotive, tyres, metal, rail, intra logistics, pharmacy, renewable energies, wood and aerospace.

The Güdel technology stands out by innovation, quality and modularity. Güdel Group employs around 1.200 people at more than 30 locations worldwide. Since the foundation over 60 years ago, the group is family owned.
Güdel Group headquarters is in Switzerland.

Heinrich Georg GmbH Maschinenfabrik
Thomas Kleb
Langenauer Straße 12
57223 Kreuztal / Germany

Regina Reinhardt
Dennewartstraße 25-27
52068 Aachen / Germany

Environment Energy

BHS-Sonthofen supplies the largest indexing belt filter in the company“s history

Extraction of reusable substances from plant waste: New plant makes several process stages superfluous.

BHS-Sonthofen supplies the largest indexing belt filter in the company"s history

The BHS indexing belt filter during final assembly at the beginning of 2016 at the Sonthofen plant.

BHS-Sonthofen has received the order from an American customer to supply an indexing belt filter for extracting reusable substances from plant waste. With a filter area of almost 90 m², the type BF 350-255 filter plant is not only the largest plant that BHS has ever built, but it is also one of the most efficient of its kind in the world.

The indexing belt filter of type BF 350-255 will process up to 5,000 kg of fibrous plant waste hourly, extracting recoverable liquid components generated in a previous production process. The filtrate is used for the manufacture of basic chemicals, while the remaining solids, which could not previously be used, are reprocessed.

During project planning, the customer had initially envisaged a multi-stage process with a sequence of consecutive screening and filtration steps and with the solids being resuspended several times. The proposal from BHS-Sonthofen to use an indexing belt filter of type BF with a single process step convinced the customer, however. Not only is the process much simpler, but it also concentrates the reusable substances to a greater extent. This means that less energy is required for extracting the substances at a later stage in the process.

As part of the treatment process, the plant waste is first suspended in water. To ensure that the reusable substances dissolved in this can be extracted as effectively from the solid as possible, BHS implements a multistage counter-current wash process in the filter plant. This allows the filter to achieve a very good washout quality, thereby significantly increasing the concentration of the dissolved reusable product in the liquid. The BHS indexing belt filter of type BF 350-255 extracts approximately 10 percent more recoverable materials than conventional procedures.

Moreover, the operating costs are lower because the indexing belt filter requires about 30 percent less water than the multistage process. This also results in considerably lower investment costs as no multiple cascades of stirring tanks and filters are required. As the entire filter plant is much simpler in design than conventional plants, it ensures a high operational reliability. At the same time, maintenance costs are significantly lower in comparison to conventional plants.

After receiving the order in December 2015, BHS supplied the filter plant in spring 2016. Commissioning is planned for autumn 2016.

Background: The BHS indexing belt filter of type BF

The indexing belt filter is a continuously operating, horizontal vacuum filter that allows for reliable and gentle separation of sedimentation solids from suspensions. The filter medium is a circulating belt, which moves forward in cycles.

Each time the cloth stops, the filtrate is sucked downwards. Then the vacuum is switched off to release the filter cloth, which can now be moved forward. The filter cake forms on top of the belt and can undergo further treatment by washing (co-current or counter-current), reslurrying, steaming, extraction, vacuum drying or pressing. During this process, the filtrates can be recovered individually from each vacuum tray and further processed without any cross-contamination. The filter cake is discharged at the discharge roller. The cloth is cleaned as the belt returns.

The design of the BHS indexing belt filter allows continuous, even feeding of the suspension via distribution devices, which also spread the solids gently. The filter cake formed by gravity and vacuum is not subject to any mechanical forces during transportation or further treatment. This makes the indexing belt filter suitable for pressure-sensitive solids as these can be processed without grain particle breakage.

About BHS-Sonthofen GmbH

BHS-Sonthofen GmbH is an owner-operated group of companies in the field of mechanical and plant engineering, based in Sonthofen (Germany). The company offers technical solutions for mechanical process engineering, concentrating primarily on mixing, crushing, recycling, and filtration. With more than 350 employees and several subsidiaries, BHS-Sonthofen has a global presence.

The Filtration Technology division manufactures machines and plants for mechanical solid/liquid separation using pressure or vacuum filtration. Key applications are processes in the chemical and pharmaceutical industry, the plastics industry, as well as for energy and raw material extraction.

For further information, please visit: www.bhs-sonthofen.de

BHS-Sonthofen GmbH
Roland Schmid
An der Eisenschmelze 47
D-87527 Sonthofen, Germany
+49 8321 6099-231

VIP Kommunikation
Regina Reinhardt
Dennewartstr. 25-27
52068 Aachen, Germany

Kunst Kultur Gastronomie

Legends of Rock in Borna & Plauen – 4 h geballte Rockpower


… und zwar gewaltig, denn am 25. Juli 2014 bringen die Bands „LETZ ZEP – Die Beste Led Zeppelin Show der Welt“ und „THE BOHEMIANS – A Tribute to the Greatest Rockband“ den Volksplatz Borna und am 26. Juli 2014 das Parktheater Plauen zum beben.

Legends of Rock in Borna & Plauen - 4 h geballte Rockpower

Letz Zep, eine von 3 Bands bei Legends of Rock

Los geht es mit der Vorband „HELLA DONNA“. Rock, Pop & Party stehen bei den Plauener Musikern auf der Playlist. Von April bis August begleiten sie die Tour von „Letz Zep“ und etablieren sich so auch außerhalb der sächsischen Bühnen. Das perfekte Warm Up für einen Abend der großen Rocklegenden.

„The Bohemians“ erweisen ihre Ehre an die wohl größte und erfolgreichste Rockband aller Zeiten. Als würde Freddy Mercury persönlich auf der Bühne stehen, versteht es Rob Comber das Publikum mit den bekanntesten Songs in Ekstase zu versetzen. „Who wants to live forever“, „We Will Rock You“ und „Bohemian Rhapsody“ sind Hits, die Freddie Mercury und seine Band „Queen“ unsterblich machten. „The Bohemians“ sind die dynamischste und aufregendste Queen-Tribute-Band, die derzeit weltweit auf Tour ist.

Bands, die alten Helden nacheifern, gibt es viele, doch nur wenige schaffen es, den musikalischen Vorgaben der Legenden überhaupt gerecht werden. Die Briten „Letz Zep“ gehören zu dieser verschwindend kleinen Minderheit , die Originalität mit Authentizität verbindet. Die Gruppe ist längst genauso zum globalen Phänomen geworden wie ihre Vorbilder von Led Zeppelin. Deren Plattenfirma Warner nennt „Letz Zep“ die beste Band im Geiste von Page und Plant.

Weitere Informationen zur Show erhalten Sie auf www.ww-events.com

VVK – Stellen Borna:

LVZ Ticket Markt,
LVZ Media Store,
in allen LVZ -Geschäfts-stellen sowie über die gebührenfreie Ticket-hotline 0800 2181-050

Stadtinfo Borna
Tel: 03433 873195

Kügler Buch & Kunst
Tel: 03433 201799

Volksplatz Borna e.V.
03433 200 607

online unter

und allen bekannten Vorverkaufsstellen.

Tickets Plauen:

Tourist-Info Plauen
Tel: 0 3741 2911027

Tourist-Info Oelsnitz
Tel: 037421 20785

MusikMarkt Plauen
Tel: 03741 131371

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Tel: 03741 2805310

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In allen Geschäftsstellen der Freien Presse

Und allen bekannten Vorverkaufsstellen


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Badstraße 49
D-08648 Bad Brambach
Geschäftsführer: Dieter Tings, Claudia Wittig
Fon +49 (0) 37438 – 21 99 71
Fax +49 (0) 37438 – 21 99 72

Bildrechte: claude piscitelli Bildquelle:claude piscitelli


World Wide Events DL GmbH
Claudia Wittig
Badstr. 49
08648 Bad Brambach

Science Research Technology

BHS-Sonthofen: Twin-shaft batch mixer for the Kressbronn concrete plant

BHS-Sonthofen: Twin-shaft batch mixer for the Kressbronn concrete plant

The twin-shaft batch mixer provides a lot of space on the new mixer platform.

Mixing technology in ready-mixed concrete plants: From disassembly to the first delivery in just three weeks

After more than 30 years, the mixing and weighing equipment at the Kressbronn ready-mix concrete plant had reached the end of its technically and economically useful life. Comprehensive modernization was called for. Previously, all seven plants operated by the group in the Lake Constance region were equipped with pan mixers. The group of companies in which the Kressbronn concrete plant is integrated has now installed a BHS twin-shaft batch mixer for the first time during modernization of the concrete plant.

The principal criteria applied for selection of the mixing system were excellent homogeneity of the mixtures, short mixing cycles and a future-proof design, along with favorable operating costs, low wear and reliable service. Assurance of the completion and commissioning deadline was another crucial factor besides the investment and operating costs. The outcome of an intensive selection process was that the BHS mixer was the best choice for the application at the Kressbronn ready-mix concrete plant. The positive experience with this mixing system reported by comparable plants also played a key part in endorsing the decision in favor of the BHS twin-shaft batch mixer.

The central element of the new plant is a DKXS 2.5 twin-shaft batch mixer with a rated output of up to 2.5 m³ of compacted concrete per batch. It replaces the two pan mixers, which had each produced 1.0 m³ per batch.

Unlike pan or planetary mixers, which mix in two dimensions only, BHS twin-shaft mixers create a three-dimensional motion pattern of the entire mixture. There is also an intense exchange of materials in the turbulent zone where the two mixing cycles overlap. They additionally support high variability in production, allowing highly uniform mixtures to be produced even in small batches. Moreover, they achieve low specific energy consumption thanks to optimal conversion of the energy input into intensive relative motion of the entire mixture.

On account of their higher filling level, BHS twin-shaft mixers are much more compact than other mixing systems, usually allowing larger mixer types to be installed in the available space in case of plant modifications.

Individual solution with modular system

Drawing on the modular system of the DKX series, which offers a host of configuration options based on a broad selection of drives, mixing tools, discharge openings, wear liners, sensors and comprehensive accessories, BHS configured a mixer for the Kressbronn plant that is specifically tailored to the individual requirements.

As part of the modernization project, the entire weighing, metering and control system was adapted to the latest state of the art and safety regulations, and a new mixing and weighing platform was installed.

On completion of the comprehensive overhaul of the control system as the final step in the modernization, the new plant produced its first concrete on Monday, February 20.

Initial experience

In practical operation, the new plant mixes up to 35 batches per hour, achieving an output of almost 90 m³ in this period. Thanks to the better mixing effect of the BHS mixer, the mixing and metering times for the individual formulas are currently being further optimized.

Truck mixers with a capacity of 7.5 m³ are now loaded with just three batches. The modernization has virtually doubled the output of the mixing plant owing to the short mixing cycles, the balanced relationship between the batch size and the truck mixer volume, and the associated reduction in the number of batches per vehicle.

The mixer can also produce homogeneous partial batches of less than ten percent of the mixer capacity. Almost even more important here is that these quantities are also discharged in a short time due to the spiral-blade mixing mechanism – a key aspect particularly for ready-mix concrete plants in rural areas, where small and extra-small volumes are an everyday occurrence.

About BHS-Sonthofen

BHS-Sonthofen GmbH offers innovative and efficient mechanical process solutions for mixing, crushing, recycling and filtration applications.

Since development of the first twin-shaft batch mixer in 1888, the company has demonstrated its innovative strength time and again with numerous new products. DKX twin-shaft batch mixers are regarded as the global benchmark where demanding mixing applications in the concrete industry are concerned.

For more information, visit www.bhs-sonthofen.de.

BHS-Sonthofen GmbH
Roland Schmid
An der Eisenschmelze 47
D-87527 Sonthofen, Germany
+49 8321 6099-231

Regina Reinhardt
Süsterfeldstrasse 83
52072 Aachen, Germany

English Press Releases

LumaSense Releases Mobile Infrared Thermal Imaging Camera System for Clear Inspection of Boiler Tubes and Furnace Walls

LumaSense Releases Mobile Infrared Thermal Imaging Camera System for Clear Inspection of Boiler Tubes and Furnace Walls

LumaSenseInc.com: Mobile IR Camera System for Boiler Tube and Furnace Inspection (BoilerSpection-IM)

BoilerSpection-IM utilizes a special mid-wave infrared detector to provide the most clear and stable through-flame images

Santa Clara, California, November 19, 2012 – LumaSense Technologies, Inc. released the BoilerSpection-IM, an easy-to-use mobile infrared camera system for clear inspection of boiler tubes and furnace walls ( http://lumasenseinc.com/EN/products/thermal-imaging-systems/boilerspection/boilerspection-im/ ). This solution is the most recent addition to the LumaSpection thermal imaging product family. With its high-quality video this new mobile IR camera system helps plant operators safely, quickly, and accurately identify process abnormalities before they grow into problems that can lead to unplanned outages.

„BoilerSpection-IM is designed specifically to be a critical tool to analyze and verify the effects of process and equipment changes,“ says Lenny Shaver, Director of Solutions and Software for LumaSense Technologies. „The system helps plant operators identify tube leaks, guide cleaning processes, and tune the combustion.“

The LumaSense solution utilizes a 3.9-µm (micrometre) infrared wavelength and unique filtering to safely see through combustion flames and clearly image the interior of coal fired boilers. This new addition to the LumaSpection product family includes a BoilerSpection-IM camera with a choice of an 18″ or 24″ lens for optimal matching of the solution to an operator’s specific plant needs. Available accessories include wireless displays with digital recording and a comfortable battery backpack.

This BoilerSpection-IM thermal imaging system provides the following features: detection of pinpoint issues before they grow into problems (shorter life cycles and unplanned outages), inspect buildup of ash and slag, tune combustion and manage fuel switching, safe monitoring at full load, one person operation, industry leading image quality, wireless digital video recording (DVR), robust optics (without cooling for most inspections). Typical applications of the mobile infrared camera system for boiler tube and furnace inspection are inspecting for slag and clinkers on superheat pendants in e. g. power boiler burning PRB coal, characterizing shape and length of burner fuel mixing and imaging coal stream from wall fired burner. Operators can survey the furnace to identify tube leaks, guide cleaning maneuvers, and tune the combustion. BoilerSpection-IM is also a critical tool to analyze and verify the effects of process and equipment changes.

BoilerSpection-IM is thus a comprehensive solution including all the components required for a user to be recording images in only minutes with wireless digital video recording.

About LumaSense Technologies™

For over 50 years, LumaSense Technologies, Inc. ( http://www.lumasenseinc.com ) has provided temperature and gas sensing instruments for the energy, industrial, clean technology and commercial markets. LumaSense is a trusted partner to both end-user and original equipment manufacturers (OEMs), drawing on proven technologies and deep industry expertise to develop state-of-the-art infrared and fiber optic temperature sensors, IR pyrometer / thermometer, radiometric thermal imagers, gas analyzers, photoacoustic gas monitors and calibration sources. With offices in Asia, Europe and the Americas, LumaSense is ideally positioned to serve the needs of the energy, industrial and clean technology markets worldwide.

LumaSense Technologies Inc.
Lenny Shaver
3301 Leonard Court
95054 Santa Clara, CA
+1 800 631 0176

Science Research Technology

BHS-Sonthofen delivers its 1,000th rotary pressure filter

BHS-Sonthofen delivers its 1,000th rotary pressure filter

One of the world?s largest rotary pressure filters, type RPF X 20, featuring a filter area of 9.0 m2

Continuously operating filtration plants for solid-liquid separation: Unique technology enables continuous operation without supplementary equipment

In May, BHS-Sonthofen delivered its one-thousandth rotary pressure filter since the establishment of the Filtration Technology division; the filter plant was supplied to an Asian manufacturer of cellulose derivatives. Thanks to decades of continual development, these filters are today rated for operating pressures of up to 7 bar (g) and temperatures of up to 160°C.

Prior to this, BHS-Sonthofen had already set a new record at the end of 2011 with the delivery of five RPF X 20 rotary pressure filters to a customer in China: in terms of throughput, they are the world“s largest rotary pressure filters, capable of filtering a suspension volume of 225 m³ per hour. With the new filters, which have a filter area of 9 m² each, BHS is the only manufacturer to offer rotary pressure filters with an atmospheric output of this magnitude.

BHS-Sonthofen has been manufacturing this unique filter system since 1954. This patented filter was developed in Munich in the early 1950s by chief engineer Erich Fest sen. and brought to Sonthofen by the inventor“s son, Dr. Erich Fest, where it formed the basis for the new Filtration Division. At that time, the filter was rated for a maximum operating pressure of 3 bar (g) and temperatures of up to 120°C.

Alongside the other company divisions at the time – Construction Machines and Gear Technology – Filtration Technology quickly became established as the third main pillar of BHS in Sonthofen. Thanks to their robust design, some of the rotary pressure filters from the 1960s are still in service at various chemical companies.

The unique feature of the filters is that filtration and further treatment of the filter cake take place under pressure, whereas the cake is discharged into the atmosphere from the non-pressurized discharge zone. This enables continuous operation without the use of supplementary equipment. This development led to a technological leap in the filtration technology of the day.

Over the years, BHS has continued to develop the rotary pressure filter, including a complete revision at the end of the 1990s. Detailed design calculations, modern design procedures for mechanical systems (FEA) and process engineering (CFD), new manufacturing technologies and innovative materials – especially in the area of sealing – have made it possible to extend the use of these filters to operating pressures of up to 7 bar (g) and temperatures of up to 160°C. The series is patented under the name of „Rotary filter plant“.

These are mechanically engineered for demanding applications: the systems supplied to the Asian customer mentioned above have a drum diameter of 1.8 m and an active length of 2 m and must therefore withstand high loads. BHS-Sonthofen uses state-of-the-art calculation and production methods. The result is high-tech mechanical engineering: each of the 35 t filter systems incorporates approximately 20 t of stainless steel.

Furthermore, new technologies for the drive system and drum bearings enable low-maintenance operation of these plants.

The current generation of filters is marketed worldwide by BHS-Sonthofen under the product name „Rotary pressure filter“ with the type designation RPF, and is available in sizes ranging from P01 (filter area: 0.18 m2) to X 20 (filter area: 8.8 m2). The machines today enjoy worldwide recognition as state-of-the-art products. With these filters, BHS has opened up new, future-oriented fields of application, for example in the production of cellulose derivatives and plastic intermediates, as well as for demanding processes in the beverage industry and for the filtering of starch.

In parallel with the ongoing technical development, BHS has also continually expanded its expertise in cake filtration over a period of more than 50 years. The wealth of knowledge and experience amassed in this time is also utilized by BHS for other products, such as belt, candle and pressure plate filters – and increasingly for filter plants.

Annex 1: BHS rotary pressure filters

Rotary pressure filters can be used for nearly all filterable suspensions. As high-performance filters, they are excellent for the precise separation of products that are difficult to filter. They also represent well-proven solutions in complex production processes for which other filter methods are not suitable.

The filter drum rotates at infinitely variable speed in the pressure-sealed housing. The surface of the drum consists of filter cells connected to the control head via drainage pipes. During filtration, the solids are retained on the filter medium, forming a filter cake that has a uniform structure and density.

The working zones of the filter are divided by separating elements that are pressed onto the drum pneumatically. This creates individual pressure-tight chambers that enable further treatment of the filter cake. In this way, the suspension, washing agents and filtrates are precisely separated from each other. Cross-contamination between the treatment stages is prevented by hermetically isolating the various process stages and separating the individual filtrates.

Depending on the design, the filter allows numerous processing steps after the main solid-liquid separation process. These include single- or multi-stage cake washing, counter-current or re-flux-washing, reslurrying, solvent exchange, steaming or extraction. Since all process steps are carried out in isolated chambers within the filter, the filtrates are discharged entirely separately from each other.

Next, the filter cake can be dewatered and, if desired, dried thermally. This typically happens during blow-drying and can be performed using air, nitrogen or other gases.

The cake is discharged into the atmosphere from the non-pressurized discharge zone. Release from the filter medium is made by a pneumatic backblow or assisted by a mechanical scraper if necessary. This unique atmospheric product discharge method is patented. The filter cloth is cleaned in the downstream single- or multi-stage rinsing chamber.

The filter is available with a CENTER DRIVE or TWIN DRIVE, which makes sure that the drum is centered in relation to the housing and thus compensates for lateral forces and radial movements of the drumTogether with a suitable bearing arrangement this ensures the tightness of the system.

Thanks to their enclosed design, BHS rotary pressure filters are suitable for many applications, especially filtration of volatile or hazardous substances, as well as for sterile processes that require special precautionary measures for reasons of toxicity, workplace hygiene or sterility.

Unlike nutsches and many centrifuges, BHS rotary pressure filters operate continuously. This eliminates the need to invest in additional systems for homogenization of the product stream and further treatment. Moreover, there are no costs for supplementary equipment such as discharge gates because the discharge zone is non-pressurized.

Annex 2: Applications in the chemical industry

Dyes and pigments
Dyes and pigments such as phthalocyanine, pearlescent or silicate pigments and aniline or anthraquinone dyes are usually difficult to filter. However, when the cake is thin, rotary pressure filters offer high throughput rates, good elution and excellent residual moisture values for these substances too.

Pharmaceuticals and antibiotics
Pharmaceuticals and antibiotics, such as synthetic or semi-synthetic antibiotics and antibiotic salts as well as herbal active ingredients and extracts, are separated in enclosed rotary pressure filters meeting GMP requirements.

Fine-grained and coarse-grained polymers and crystals, polyolefins, aromatic acids, acrylic or melamin resins are optimally separated, washed and dewatered using high-performance filters with throughput rates of up to 100 t/h.

The rotary pressure filter meets strict workplace hygiene standards for toxic products such as insecticides, fungicides, molluscicides or herbicides.

Rotary pressure filters gently process cooking fat, stearins, amino acids, synthetic proteins, lecithins, starch, plant extracts, coffee or vitamins in compliance with food industry standards and without contaminating the product.

Cellulose products
With rotary pressure filters, even products that are difficult to process can be filtered, washed and dewatered in a precisely specified temperature range without gelling. Such products include methylcellulose or microcellulose, CMC and cellulose derivatives.

Inorganic and organic chemicals
Inorganic and organic chemicals such as vulcanization additives, sodium hydrosulfite, carbonates, phenyls, amines, paraffins, urea adducts or raw materials for detergents can be processed in rotary pressure filters.

About BHS-Sonthofen GmbH

BHS-Sonthofen develops and manufactures machines and plants for mixing, crushing, recycling and filtration applications in the field of mechanical process engineering. The company focuses on customized solutions tailored to the specific requirements of individual industries.

For over 50 years, BHS has manufactured a wide range of filtration plants for solid-liquid separation in batch and continuous processes. These plants are used on a daily basis by over 1000 customers for highly diverse applications and are regarded as innovative, state-of-the-art solutions. A common feature of all BHS filters is that they work with a comparatively thin cake.

Well-known customers in the construction and building materials, mining, chemicals, pharmaceuticals and food processing industries as well as the environmental and waste management sectors and other major industries have been relying on machines and plants from BHS-Sonthofen for many decades.

BHS-Sonthofen GmbH has been an independent group of companies since 1996. Its history stretches back to an iron-smelting works founded 400 years ago on the site of the present-day company premises. Today, BHS-Sonthofen is a mid-sized global player with over 300 employees, 210 of whom work in Sonthofen. The group of companies is headquartered in Sonthofen, Germany, and has subsidiaries in the US, China and India.

For more information, visit www.bhs-sonthofen.de.

BHS-Sonthofen GmbH
Roland Schmid
An der Eisenschmelze 47
D-87527 Sonthofen, Germany
+49 8321 6099-231

Regina Reinhardt
Süsterfeldstrasse 83
52072 Aachen, Germany

Environment Energy

12 MWp Power Plant by Emmvee

12 MWp Power Plant by Emmvee

Power Plant with Emmvee Modules

From 0 to 12 MWp in Seven Weeks

Emmvee, manufacturer of photovoltaic modules, project developer and epc, have planned and developed a solar park with almost 12 MWp within 7 weeks.

The park has been established on an old air port near Bronkow, a beautiful village in the state of Brandenburg. Works started on March 13 with an extensive search for ammunition. With them having been transported away, the 120 workers were able to install 11000 poles for the supporting structure of 46000 modules by Emmvee.
The solar park is one of the twenty biggest parks in Germany.
Some of the modules are equipped with structured glass, one of the specialities of the company that helps increase the efficiency and also minimise the blinding effect for the pilots wanting to touch down there.
„Emmvee pursues a strategy of long-term co-operations. Therefore, we were able to install a system this size in such a short time,“ reflects Steffen Graf, Managing Director of Emmvee Photovoltaics GmbH.

There is a new development when it comes to the mounting system. Emmvee and the German company MKG have developed a new mounting system especially for Emmvee modules. „The sturdiness of the frame, a development by the research team of Emmvee, lends itself for this innovative mounting system. The frame also plays a vital role under hrash climate conditions.“ says D.V. Manjunatha founder of the company.
The website www.emmveephotovoltaics.com allows a deeper insight into the company and its business activities.

Emmvee Group of Companies is an international provider for solutions in the fields of renewable energy. The manufacturer of photovoltaic modules and solar-thermal appliances has two production plants in Bangalore, India. Its European headquarters are in Berlin, Germany.
Emmvee has recently started the business unit Project Development, a global unit in order to install turn- key solar installations.
Emmvee places great emphasis on transparency, service and quality.
The website www.emmveephotovoltaics.com allows a deeper insight into the company and its business activities.

Emmvee Photovoltaics GmbH
Frank Hilgenfeld
Franz-Jacob-Straße 4a
10369 Berlin

Immobilien Bauen Garten

Gemuese-Plant.de – Das neue Gartenportal eröffnet

Mit www.gemuese-plant.de alias Gemüse Plant eröffnet im April 2012 eine neue Gartenplattform für den Bereich Gemüseanbau im eigenen Garten.

Auf der modern gestalteten Seite von Gemüse Plant finden die Besucher zahlreiche Informationen zum Anbau von verschiedenen Gemüse Arten, wie zum Beispiel Tomaten oder Salate.

Neben diesen Informationen verfügt Gemüse-Plant in naher Zukunft auch über eine Bewertungsfunktion, ausgewählte Mitglieder können Ihren Bericht über verschiedenes Gemüse / Online Shop / Saatgut veröffentlichen, nach redaktioneller Überprüfung. – andere Mitglieder können dort Ihre Meinung kundtun, sofern diese keine Schmäh Kritik oder gegen geltendes Recht verstößt.

Firmen wie zum Beispiel Hersteller, oder auch Online Shops können darüber hinaus an Gemüse Plant verschiedene Produkte senden, diese werden dann angebaut und dokumentiert, nach Einwilligung der Firma wird dieser Bericht dann veröffentlicht.

Gemüse Plant wurde von Philipp Werle aus Heidelberg und Dipl. Ing. Ernst Kaltenbrunn aus Bensheim ins Leben gerufen. – Die Seite verfügt sowohl über eine normale HTML Seite als auch über eine Seite für Smartphone.

Der Bekanntheitsgrad der Seite, soll nach Fertigstellung rasant nach oben steigen und so in Kürze täglich mehrere 10.000 Besucher empfangen. Dies geschieht auf verschiedenen Wegen u.a mit gängiger Google Werbung, als auch mit Spezial Werbeformen in Formen.

Einzigartig bei Gemüse Plant dürfte auch sein, dass die Mitglieder / Besucher über die Inhalte mit bestimmen können, die Webseite wird daher nach und nach erneuert, und an die Besucher angepasst.

Ab Juni 2012 soll dann ebenfalls auf Gemüse Plant Werbung geschalten werden, um so die Ausgaben wieder rein holen zu können. Doch das Modell von Gemüse Plant ist nicht neu, bereits im Jahr 2010 eröffnete Philipp Werle eine ähnliche Plattform für Aquarianern, mit damals ca. 20.000 Besuchern täglich. – Diese verkaufte er im September 2011 jedoch.

Nun geht es mit Gemüse Plant und höheren Zielen weiter.

Gemuese-Plant Ltd & Co Kg ist die Betreiberin des Garten portals Gemuese-Plant.de – Ihrem Portal, wenn Sie Gemüse im eigenen Garten anbauen möchten

Gemuese Plant Ltd & Co Kg
Ernst Kaltenbrunn
Friedenstr. 51
68199 Mannheim

English Press Releases

Zink Körner increases efficiency by 10 percent

Zink Körner increases efficiency by 10 percent

A recently installed furnace for a throughput of 12 t/h is equipped with twelve 180 kW flat flame burners.

Efficient furnaces for batch galvanizing: Zink Körner is the only supplier of furnaces that use burners specifically developed for batch galvanizing.

Zink Körner offers a wide gamut of design features to reduce energy consumption in batch galvanizing. For example, burners specifically developed for batch galvanizing give Zink Körner furnaces efficiencies of 75 percent – 5 to 10 percent more than attained in conventional plants. For a typical furnace, this translates into annual cost savings of about 25,000 euros.

Infinitely adjustable flat flame burners, a wall construction that allows only little heat transfer and a novel reflecting refractory coating lead to a distinct increase in energy efficiency. By offering plant concepts that integrate all these features, Zink Körner is constantly strengthening its position as trendsetter in energy-efficient furnace technology.

In spring 2011, Zink Körner commissioned a new facility for batch galvanizing at Salavatmetall in the Russian Republic of Bashkortostan. In that facility, Zink Körner implemented the full line of economically and ecologically useful technical features.

The plant galvanizes above all polygonal poles, transmission towers and crash barriers. It is designed for a production rate of up to 12 t/h. The galvanizing tank is 13 m long, 1.6 m wide and 3 m deep. The furnace is equipped with 12 flat flame burners of type FL 20/50, which Zink Körner specially developed for batch galvanizing. While using the relatively low-cost natural gas as fuel, these burners afford the benefit of uniform and careful heating – which in the past was only achievable by electrically heated furnaces.

The burners achieve an efficiency of 75 percent. Clear evidence of the efficient energy use is the low flue gas temperature. In a recently implemented project incorporating a furnace with a throughput rate of 10 t/h, the flue gas temperature is only 507 °C. As a comparison: in conventional plants the flue gas temperature is often higher than 625 °C.

Compared with plants using impulse-mode burners, Zink Körner furnaces using flat flame burners achieve impressive energy savings, for example, about 500,000 kWh in a facility with a throughput rate between 10 and 15 t/h operated in two shifts for 4,000 hours per year. At a price of 5 cents per kWh, this results in cost savings of 25,000 euros per year.

Unlike the burners commonly used in the past, these innovative burners operate in a modulating mode. They are infinitely adjustable within a range of 1:10. Through this, the power is being constantly adjusted to match the furnace throughput. Consequently, the furnace consumes exactly the amount of energy required in the specific moment. This regulating mode also avoids abrupt temperature changes, which may cause excessive stresses in the galvanizing tank structure.

In addition to these features, Zink Körner implements further efficiency-enhancing measures. Diffusor plates mounted on the burners direct the gas flow along the inner furnace wall. This produces a combination of radiant and convective heat, which has the effect that the thermal output of the furnaces into the galvanizing tank is high at relatively low mean temperatures. The multi-layer, 300-mm-thick insulation reduces heat loss and the innovative ceramic coating applied to the fibrous insulation additionally reflects the radiant heat towards the interior of the furnace.

Zink Körner at Wire 2012 in Düsseldorf:
Hall 9, stand C14

About Zink Körner

Zink Körner GmbH designs and manufactures the complete array of hot-dip galvanizing equipment for bulk material, tubes and pipes, miscellaneous small parts and centrifugal parts.

The supply range encompasses complete galvanizing plants, including pretreatment and handling equipment. The company provides design, engineering, manufacture, erection, commissioning and after sales service. Zink Körner maintains a worldwide network of branches and licensees.

Zink Körner has launched many pioneering developments during its company history. For example, as early as at the beginning of the 1970s the company built the first automated centrifugal galvanizing plants, which have markedly enhanced the quality of the end products and the energy efficiency of the galvanizing process. The company took another innovative move when it developed dedicated burner technology for hot-dip galvanizing applications.

Zink Körner is a company of the Körner Group, which was established in 1928. Thus the Group builds on more than 80 years of experience in industrial furnace technology and auxiliary equipment.

Within the Group, Wire Körner GmbH designs heat treatment equipment for wire and narrow strip. TVT Kordt GmbH develops plants for thermal process technology, with a focus on industrial furnaces for the heat treatment of steels, special steels and non-ferrous metals.

Zink Körner GmbH
Peter Kordt
Profilstrasse 9
58093 Hagen / Germany
+49.2331.800 6-0


Regina Reinhardt
Süsterfeldstrasse 83
52072 Aachen /Germany