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Haver & Boecker Niagara and Metinvest have met: Together for a future with more CO2-efficient ironmaking processing

The iron and steel industries are indispensable components of economy. Our world is built by using steel. We need even more steel for the improvement of infrastructure of our cities. Owing to this increasing steel demands we consider significantly growth of the iron ore production in recent years.

On the other hand, there are many environmental effects from the iron industry. Iron ore and steelmaking are the largest energy consumer of electricity and fossil fuels, being responsible for over 25% of hazardous atmospheric emissions and over 30% of carbon dioxide emissions. That’s why we need to think about sustainable solutions that minimize the CO2 emissions and energy use by iron ore production; solutions that deliver higher performance in terms of energy efficiency, resource efficiency and better process and product performance. We need CO2-efficient ironmaking processes.

One of the possible solutions could be direct reduction process like Midrex- or HYL, Corex process. 1

In this light, the transformation of iron ore into steel requires several process stages. First at all, we need to become H2 and iron ore pellets. Iron ore pellets produced from the iron ore concentrate by pelletizing and sintering. At the same time, the quality requirements of pellets, such as size distribution, physical, chemical and metallurgical specifications are higher and should be guaranteed by very innovative pelletizing technology that is able to ensure the perfect flow for our blue planet.

As a world’s leading supplier for customized screening, washing, pelletizing machines and plants solutions, we are feeling responsible to take actions into the protection of our environment by developing systems, which use fewer resources, fulfill the needed higher quality of the pellets and care for the health of the mother Earth.

Тhe result of our efforts we developed the SCARABAEUS pelletizing disc. The pelletizing disc fulfills the specification deeds for the processes of direct reduction and saves up to 5% energy by reduced recycling rate. The production capacity can be up to 150 t/h.

Those characteristics convinced experts from Eastern Europe in the potential of our innovative pelletizing technology for the production of iron ore pellets with a very narrow particle size distribution (10 to 12,5 mm) and high product rate (up to 70 %). Subsequently we got the great opportunity to work with one of the international steal and mining groups in east Europe: Metinvest. Аfter conducting iron ore tests in Haver Engineering in Freiburg and proving the possibility of achieving the desired parameters, a contract for the supply of the necessary equipment was signed. The pelletizing disc SCARABAEUS 7500 was delivered in combination with completely automatic control system.

In order to satisfy the higher needs of the pellets, an automatic pelletizing disc control system was introduced for the first time, incorporating three machine parameters: rotation speed, tilt angle, and board height.

In the end of July the CEOs of Haver Niagara GmbH (Peter Grotjohann) and Metinvest (Yuriy Ryzhenkov) have met in the manufactory of Metinvest in Ukraine. They inspected our powerful and reliable pelletizing technology and discussed the future course of our business relationship. The managers have dealt with all the advantages that our technology ensures to Metinvest and put heads together into developing the best strategy that is able to become fully aware of their common vision for the future: to live in a stronger, lighter and more sustainable world, where technology guarantees the care for the health of the mother Earth using highest environmental protection standards.

We are very happy that starting working together with Metinvest opened new doors to more CO2-efficient ironmaking processes and we have the unique opportunity to lay the first foundation stone of the future to green iron ore processing.

Metinvest, we would like to express our huge thanks for the trust, which you have placed in us. It is such a pleasure working together!

 

 

1 https://www.tec-science.com/de/werkstofftechnik/stahl-erzeugung-herstellung/direktreduktionsverfahren/

https://de.wikipedia.org/wiki/Stahlerzeugung

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Geheimrezept hoher Druck und wenig Wasser: Der Hydro-Clean reinigt Körnungen von Schad- und Störstoffen bei geringem Ressourceneinsatz.

Die Hydro-Clean Waschanlage HC aus dem Programm von Haver & Boecker Niagara befreit in effektiver Weise Nutzkorn von Schad- und Störstoffen. Dabei soll der Wasserbedarf im Vergleich zu traditionellen Waschsystemen um bis zu 75 % niedriger liegen bei ebenfalls um bis zu 15 % geringeren Energiekosten. Dieser Spareffekt ist der kompakten Baugröße und dem geringeren Gewicht gegenüber traditionellen Waschsystemen, die zudem eine größere Aufstellfläche haben und mehr Ausrüstung benötigen, zu verdanken. Das wartungsfreundliche Design ermöglicht im Bedarfsfall den einfachen Austausch der wenigen Standardkomponenten, wobei der HC laut Hersteller wenig verschleißanfällig sein soll.

Zur Reinigung von Aufgabematerialien bis zu einer Größe von 150 mm in einer vertikalen Trommel sprühen Hydro-Clean-Hochdruckdüsen Wasser mit Drücken bis zu 140 bar bei einer Drehzahl von 90 UpM auf das Material. Das Waschsystem entfernt auf diese Weise Schlamm- und Lehmpartikel bis zu 63 Mikron aus Mineralgemischen.

Die Waschanlage ist in vier Modellgrößen erhältlich, die 18 bis 400 t Material pro Stunde aufbereiten, je nach Typ und Anwendung. Der Wasserverbrauch reicht dabei je nach Anwendung und Modellgröße von 102 bis 798 l/min.

Das System funktioniert folgendermaßen: Verunreinigtes Material wird über einen Trichter in die vertikale Trommel des Hydro-Clean aufgegeben, woraufhin die oben montierten Hochdruckdüsen rotieren und das Material mit Wasser besprühen. Die Turbulenzen in der Trommel erzeugen zusätzliche Scheuer- und Schleifkräfte, die den Reinigungsprozess verstärken, während das Material den Trommelzylinder passiert. Am Ende des Reinigungsprozesses wird die Aufgabe über einen Abzugsförderer ausgeleitet, der zu einem Waschsieb führt. Dieses ist für eine Nachwäsche zuständig, während es gleichzeitig das Material fraktioniert.

Lesen Sie den Beitrag in Ausgabe 4/2019 von Gesteinsperspektiven

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Haver & Boecker Niagara visited the magnificent gravel and split plant in Saxony

The customer Steinbruch Schelmberg GmbH & Co. KG is completely satisfied with the perfect flow of our screening machines

We are always pleased, when our products provide added value for our customers. We developed this amazing gravel and split plant for medium-hard and hard rock for Steinbruch Schelmberg in Oelsnitz/Vogtland. There we implemented three of our free-vibrating screening  machines type T-Class in heavy duty design for regular and high loads, one Fine-Line especially for fine particle natural moisture screening and two Haver Niagara Feeder. They support our customer to classify his material of the secondary crushing stage by specific sizes, to re-crush the coarse excess material to a minimum size and finally to transport the classified material to the heap.

A modern robust built of this installation allows the processing of more than 200 t/h and crushes the feed material up to 90 mm. The processed material is used to satisfy the needs of asphalt and concrete industry whereby we also could contribute to the development of sustainable infrastructure for our cities.

Few months after processing start we visited our customer ‘‘Steinbruch Schelmberg GmbH & Co. KG” ones again. He is completely satisfied with the perfect flow of our screening machines, feeder, fine line and the whole process as well. He is impressed how fluently works the classifying of fillers from fine material and he find out that with our innovative processing technology he spares resources, increases his productivity and reduces his costs.

We highly appreciate hearing such fantastic impressions from our customers.

 

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Haver & Boecker Niagara N-Class Scalper Excels in Heavy-Duty Applications

Haver & Boecker Niagara offers the rugged, efficiency-enhancing N-Class vibrating screen to optimize crushing plants and screening operations through its ability to screen as much as 5,000 tons per hour. The Niagara N-Class is ideal for tough jobs, such as scalping and classifying ores, minerals, stones, sand and gravel in aggregates and mining applications. Haver & Boecker Niagara builds the equipment with an advanced four-bearing design that minimizes structural vibration and maintains constant g-force even through fluctuating material feed rates.

“The Niagara N-Class is a one of a kind machine with the ability to productively accomplish screening tasks other vibrating screens have difficulty with,” said Peter Grotjohann, managing director of the German facility. “The machine offers our customers an ideal solution for improving crushing plant efficiency and classifying coarse materials, therefore improving profits.”

Haver & Boecker Niagara’s N-Class offers one to threescreen decks and features an advanced single-eccentric shaft design that’s supported by four high-performance, double-spherical roller bearings. It is dynamically balanced to minimize dynamic loads transferred into the structure and allows multiple screens to be placed side by side in the same building. The N-Class maximizes screening efficiency and virtually eliminates blinding and pegging by providing a consistent g-force in all operational modes regardless of load consistency. A heavy-duty body design handles heavy loads in applications with extreme material sizes up to 2 x 1 x 1 meter. The screens offer a self-cleaning action to minimize common problems encountered with traditional grizzly feeders.

The N-Class is ideal for reducing loads and energy demands for a crushing plant by providing more consistently-sized material to improve crushing efficiency. The use of the vibrating screen in the process before the crusher increases the crusher capacity and maximizes the quality of the crushed product.

Each N-Class comes equipped with Haver & Boecker’s signature Ty-Rail System, which cuts media replacement time by about 50 percent by simplifying the process.

Haver & Boecker Niagara builds the N-Class for quick and easy re-balancing. It includes long-life bearings and a maintenance-friendly, modular machine design. The vibrating screen is equipped with buffers between the screen box and support frame for improved process reliability.

It is recommended to equip the machine with Haver & Boecker Niagara’s patented crossbeam abrasion protection system, Snap-Guard®. Snap-Guard is made from polyurethane and protects crossbeams from harsh materials, extending maintenance intervals, reducing operating costs and increasing profits.

About Haver & Boecker Niagara

Haver & Boecker Niagara is a leading provider in screening, washing, pelletizing and primary crushing systems. The company’s mission is to deliver the best of these technologies to customers in the aggregates, mining, mineral processing, chemical and food industries. With deep roots and years of experience in these industries, Haver & Boecker Niagara uses its innovative and shared technologies to effectively meet the needs of customers around the world.

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Haver & Boecker Niagara Offers Turnkey Solutions for Primary Crushing Plant Systems

MÜNSTER, Germany (June 5, 2019) — Haver & Boecker Niagara offers rugged primary crushing plants in a wide variety of configurations for pre-crushing, secondary and tertiary crushing in the mining and aggregates industries. From design to installation, the manufacturer uses its extensive industry experience and knowledge to provide turnkey systems engineered and built to individual specifications. Haver & Boecker Niagara will work with any crusher and peripheral component manufacturers to ensure customers receive the best plant matched to their requirements.

Grotjohann2

“We’re entrenched in the mining and aggregates industries and are dedicated to each customer’s profitability and success,” said Peter Grotjohann, managing director of the German facility. “We use our industry experience and work closely with each operation to design comprehensive primary crushing plant systems with the highest level of durability, service and flexible design so each customer can find the best plant for their operation.”

Haver & Boecker Niagara offers turnkey primary crushing plant solutions through customer-oriented project support, from initial concept to the production phase. In addition to coordinating the physical plant, Haver & Boecker Niagara offers structural building engineering at the start, including verifiable statics calculation. The company features transportation management, supervision or the complete package: from assembly and electrical installation to plant start-up and optimization. Haver & Boecker Niagara also offers project management, on-site services, operating supplies, components or plant control. Operations also benefit from service and spare parts planning and service contracts.

Haver & Boecker Niagara provides crushing plant systems with a variety of components, including impact, jaw, cone or roller crushers, Haver screens or rolling screens, push feeders, apron conveyors and Haver vibrating feeders. The plant systems work with all peripheral components such as maintenance cranes, de-dusting systems, compressed air systems, hydraulics and hammers.

Customers choose from two types of systems, basic or master. Basic is the classic pre-crushing plant that uses a Haver & Boecker Niagara N-Class eccentric screening machine to relieve the primary crusher. It includes a feeder, vibrating screen, crusher and several conveyors. If needed, an additional screen deck screens stony earth either to be screened away or to be fed to production.

PM-261-s14-oben

The master system allows customers to get the most production and profitability out of their natural mineral deposit. The system provides increased flexibility for primary crushing stages, especially with non-homogeneous natural deposits. For high quality natural deposits, the operations can use the master system to feed extracted material completely to the production. The system can screen stony soil off to a second vibrating screen for moderate natural material deposits. The system can be configured to completely remove stony soil from difficult natural material deposits.

Both systems work with the Haver & Boecker Niagara N-Class vibrating screen. The screen is perfect for scalping thanks to its smooth operation and heavy-duty design making it capable of screening as much as 5,000 tons per hour. Haver & Boecker Niagara builds the equipment with an advanced four-bearing design that minimizes structural vibration and maintains constant g-force even through fluctuating material feed rates.

Haver & Boecker Niagara primary crushing plant systems feature rugged steel construction and a robust design incorporating a durable, optimum flow, low wear and maintenance friendly chute system and integrated custom conveyor technology. Accessibility is easy thanks to engineered work platforms, walkways and stairway systems. Integrated plant control systems and data management ensure intuitive operation.

Also included is comprehensive plant documentation on CE requirements and beyond and declaration of conforming with EC directives for machines 2006/42/EG (CE). Haver & Boecker Niagara gives extensive consideration of requirements for personal safety and the environment.

About Haver & Boecker Niagara

Haver & Boecker Niagara is a leading provider in screening, washing, pelletizing and primary crushing systems. The company’s mission is to deliver the best of these technologies to customers in the aggregates, mining, mineral processing, chemical and food industries. With deep roots and years of experience in these industries, Haver & Boecker Niagara uses its innovative and shared technologies to effectively meet the needs of customers around the world.

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Underground processing plant for fluorspar

The opening up of a new mine in Germany’s Erzgebirge (Ore Mountains) in late 2013 marked a milestone for German mining, continuing the tradition in this region, following decades of stasis. The reasons for the extraction of fluorspar and baryte are closely tied to steadily rising raw material prices on the world market. The operator, the Erzgebirgische Fluss- und Schwerspatwerke, chose HAVER NIAGARA GmbH when it came to designing and installing an underground processing plant for the mine in the Erzgebirge. HAVER NIAGARA GmbH took on the challenge to set up a flexible and economically viable processing plant (Fig. 1). Despite the limited space and the high requirements to be met by the processing plant, a tailored plant was designed (Fig. 2) that fulfils the high expectations of the operator to full satisfaction.

Fig. 1: Production line installed by HAVER NIAGARA GmbH

Fig.2: The space restrictions made it necessary to speciallytailor the plant to the conditionsin one of the two underground chambers

 

 

 

 

 

 

 

 

 

 

 

 

The processing plant roughly consists of two independent production lines, which were installed in two parallel underground caverns. In the first process stage, the blasted raw material is removed from the feed bin by means of reciprocating feeders and fed to a NIAGARA scalper (Fig. 3). This reduces the load to be processed in the downstream jaw crusher. The material from the primary crusher is conveyed on a troughed belt conveyor to a NIAGARA screen, which as well as screening off the ultrafine material, splits the material into two sub-streams to feed an X-ray sorting plant. This sorter separates the raw spar from the “dead rock” on the basis of the atomic density. The raw spar obtained in this way is crushed in a cone crusher to the necessary finished grain. The crusher discharge is sent via a downstream NIAGARA screen to a loading silo, there the raw spar is loaded onto road trucks.

Fig. 3: NIAGARA scalper in the first stage of the process

From there, the material is conveyed to the processing plant above ground, where it is ground and enriched in a flotation plant and then separated into the main components baryte and fluorite. After drying, two high-grade raw materials are produced, which are then sold.

Over the next years, HAVER NIAGARA GmbH will be on hand providing services for our german customer to keep the complete plant at its best both economically and ecologically.

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Haver & Boecker Features Ty-Rail™, an Industry-Changing Tension Rail System for Vibrating Screens

Haver & Boecker features the Ty-Rail™ quick-tensioning system. The patented Ty-Rail system solves an age-old problem of time intensive screen media change-outs. Replacing tension rails is typically time consuming and requires removing and replacing many pieces of hardware per screen section. Washers or bolts are often dropped or lost in the process, which adds to downtime and parts costs. The Ty-Rail system provides a fast return on investment, and cuts screen change-out time in half.

Haver & Boecker will feature Ty-Rail in Hall B2, Booth 149 at bauma 2019 in Munich.

“As a whole, Haver & Boecker is committed to innovation that’s focused on improving efficiency,” said Florian Festge, Haver & Boecker managing director. “Our engineers’ invention of the Ty-Rail system solves the long-time problem of lost parts and difficult, time-consuming screen panel change-outs. Without a doubt, once implemented, our customers will see increased uptime and, as a result, profits.”

Each Ty-Rail package includes two tension rails, eight angle boxes and eight bolts; all the hardware required to change one screen section. Once installed, each rail becomes a singular, removable piece since the bolts remain attached to the rail, and the angle boxes remain attached to the vibrating screen. To remove the tension rails, an operator simply loosens the bolts on each, shifts the angle boxes up, and lifts the rail and bolts out as one piece. This reduces screen media change-out times by about 50 percent. Additionally, the innovation can take the task of changing tensioned screen media panels from two people down to one.

The system is designed specifically for Haver & Boecker’s vibrating screens.

About Haver & Boecker

Haver & Boecker, is a leading provider in processing, storage, mixing, packing, filling, palletizing and loading systems. The company’s mission is to deliver the best of these technologies to the marketplace. With deep roots and years of experience in these industries, Haver & Boecker uses its innovative and shared technologies to effectively meets the needs of customers around the world.

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Haver & Boecker offers the Pulse Vibration Analysis Service Program

Haver & Boecker  Niagara features its Pulse vibration analysis service program. This innovation in vibration analysis gives mining and aggregate customers a means to optimum vibrating screen performance.

Haver & Boecker will feature Pulse in Hall B2, Booth 149 at bauma 2019 in Munich.

Pulse is designed specifically to monitor the health of vibrating screens to ensure optimum screening performance and equipment durability. Understanding that small imbalances can lead to substantial and expensive problems, the program detects irregularities that could translate into diminished performance, decreased efficiency and increased operating costs for the vibrating screen. The reporting and historical tracking of the machine’s performance gives customers the information needed to minimize downtime and maximize productivity and profits.

The program was developed to be easy to operate. Components were specifically chosen and engineered for the harsh environments where screening takes place.

“Pulse has the potential to significantly impact our mineral processing customers as well as others in the processing chain,” said Florian Festge, Haver & Boecker managing director. “Customers that utilize the Pulse system have the tools they need to optimize screening efficiency on a daily basis. This helps improve their operation’s profitability through minimized downtime and lower maintenance costs.”

Pulse gives customers the hardware and software required to instantly record vibrations on their machine. That data is then transmitted to Haver & Boecker where the engineering team analyzes it. The team then issues a report back to the customer including an analysis of the machine’s performance and recommendations for improvement.

If the results are good, the customer has reassurance that the machine is healthy. If the results require a Haver technician to examine the machine in person, a service call is scheduled.

The Pulse system uses an industrial-grade tablet computer that connects wirelessly with eight tri-axial sensors. The sensors attach to key places on the equipment and send up to 24 channels of data to the tablet, which displays a real-time view of the machine’s orbit, acceleration, deviations and more.

Beyond the real-time view on the screen, all of the information from the sensors is electronically stored in the database for an easily-accessible historical overview of the machine. The information can be downloaded online in two report formats. The Orbit Report provides a visual of orbit and wave form, as well as data about acceleration, stroke, speed and phase angle. Fast Fourier transformation, or FFT, plots are processed by the software for values for three channels of data for each measuring point. The Tuning Report extrapolates deviations between measurement points while providing recommendations on balance, acceleration, stroke and speed. It provides feed and discharge analysis as well as diagonal measurements.

About Haver & Boecker

Haver & Boecker, is a leading provider in processing, storage, mixing, packing, filling, palletizing and loading systems. The company’s mission is to deliver the best of these technologies to the marketplace. With deep roots and years of experience in these industries, Haver & Boecker uses its innovative and shared technologies to effectively meets the needs of customers around the world.

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Hooked Engineered Screen Media as Alternative to Costly Deck Conversions

Haver & Boecker Niagara, a leading equipment manufacturer and solutions provider in aggregates and mining applications, offers its Tyler brand of hooked engineered screen media as a solution to the problem of expensive deck conversions. Tensioned screen media can be used on a cambered deck, eliminating the need for a deck conversion when switching from woven wire to polyurethane screen media. The media includes products such as Ty-Max and Ty-Wire.

Haver & Boecker will feature Tyler engineered screen media in Hall B2, Booth 149 at bauma 2019 in Munich.

Hooked screen media allows operations to easily switch from woven wire to modular polyurethane products without the expense of a deck conversion. Retrofitting a machine from a cambered deck to a flat deck can cost as much as $15,000 per deck. Tyler’s tensioned screen media is used on a cambered deck to eliminate the need for that conversion. This also allows operators to test the media on a vibrating screen with no additional cost or commitment.

Another benefit is that Ty-Max and Ty-Wire can be blended with woven wire or self-cleaning screens on cambered decks. In many applications, operators are looking for more wear life on the feed end of the screen. This can be accomplished by installing a section of Ty-Max at the feed end. Ty-Wire can be used in the middle of the deck, for example, where basic screening takes place to give operators the ideal combination of wear life and open area. Using woven wire or self-cleaning screens at the discharge end will provide maximum open area at the end of the deck.

The screen media is manufactured out of Haver & Boecker’s signature blend of polyurethane. It’s made in one of the only facilities that blends its own material, which is critical for quality control. Chemists developed the media to offer the best combination of open area and wear life for both wet and dry applications. Engineered screen media is poured open cast, resulting in 1.5 to 2 times longer wear life than injection-molded products sold at comparable prices. In addition, open cast polyurethane permanently hardens when cured to maintain its chemical properties, so it resists wear and tear. Injection-molded screens can soften when the temperature rises during screening, resulting in shorter wear life.

Haver & Boecker manufactures a variety of engineered screen media options to suit different operations’ applications, taking into consideration top sizes and opening requirements. Operators looking for high durability and strength choose Ty-Max, which Haver & Boecker reinforces with an internal wire grid as thick as 9.5 millimeters (3/8 inch). Ty-Wire combines woven wire with an engineered composite to achieve open area closer to wire cloth but with four to six times longer wear life. Ty-Wire weighs less than woven wire, making it safer to handle and easier to install.

Haver & Boecker also offers Ty-Deck modular panels, available in multiple configurations for flat deck setups. Ty-Deck’s lightweight design eases installation and sectional deck replacements

To find out more about the benefits of Haver & Boecker hooked engineered screen media, email info@haverniagara.com or call +49 (0) 251 9793-0.

About Haver & Boecker

Haver & Boecker, is a leading provider in processing, storage, mixing, packing, filling, palletizing and loading systems. The company’s mission is to deliver the best of these technologies to the marketplace. With deep roots and years of experience in these industries, Haver & Boecker uses its innovative and shared technologies to effectively meets the needs of customers around the world.

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Stellenangebot: Werkstudent im IT Support & in der Datenpflege (m/w/d)

Wir suchen nach unseren IT-Helden!

Du bist Student und suchst gerade nach einem Nebenjob? Du möchtest in einem internationalen mittelständischen Unternehmen mit flexiblen Arbeitszeiten und in einer netten Atmosphäre neben dem Studium tätig sein? Du bist technikaffin, IT ist deine Leidenschaft und du möchtest den Menschen am Arbeitsplatz helfen ihre technischen Probleme lösen? Dann bist du bei uns genau richtig! Bewirb dich gleich!


Wer wir sind?:

Wir sind ein Maschinenbauunternehmen mit Sitz in Münster. Wir suchen für unseren IT-Bereich + Datenpflege nach einer langfristigen Unterstützung (min. 2 Jahre).

Bei Interesse an dieser Position bewirb dich noch heute mit einem Kurzprofil.


Eckdaten:

  • Stundenlohn von 16,22€/Stunde
  • Arbeitszeit: Schwerpunkt der Kernarbeitszeit ist vormittags 8-14Uhr – 2xpro Woche (flexibel)

Deine Aufgaben:

  • Beseitigung von Störungen (Drucker klemmt, Maus defekt etc.)
  • Hilfe beim Abbau, Aufbau und Umzug eines IT-Arbeitsplatzes
  • Unterstützung der Anwender bei Hardware & Softwarestörungen
  • Druckerkonfiguration bei Anwendern
  • Hilfe bei der Durchführung von Rollouts
  • Unterstützung bei der Datenpflege (in Excel, Word)

 

Nach einer gewissen Einarbeitungszeit:

  • Installation des Standard Betriebsystems sowie weitere Softwarepakete
  • Dokumentation der Tätigkeiten

Dein Profil:

  • Werksstudenten mit entsprechender IT-Erfahrung / Du bist allgemein IT-affin
    –> Erste Erfahrungen im IT-Support/IT-Bereich von Vorteil
  • Gute Kenntnisse im Bereich der gängigen Betriebssysteme (Win7, Win10)
  • Gute Microsoft Office Kenntnisse (Excel, Word, Powerpoint)
    –> Gutes technisches Verständnis im Hard- und Softwarebereich
    –> Gute Deutschkenntnisse in Wort und Schrift
  • Du studierst noch mindestens ca. 2 Jahre

Hast du Interesse daran? Schick uns deine Bewerbung an:

Thomas Michna

Tel :     +49 251 9793-145
Fax:     +49 251 9793-156

t.michna@haverniagara.com

www.haverniagara.com

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More profit with the innovative washing technology Hydro-Clean®

Reduced water and energy use

Haver & Boecker Niagara advanced Hydro-Clean® washing technology is helping a gold producer looking to expand its operation in eastern Russia increase production, reduce water consumption and minimize wear. The producer currently uses a test washing drum and two bearing screen to separate the sand and clay from its mined gold ore. This method provides inadequate washing results, causes excessive equipment wear and consumes high volumes of water and energy. Working closely with the customer, the HSG set up the Hydro-Clean 700 unit (Fig. 1) and rinse screen as a separate test operation to prove it could successfully wash the operation’s three distinct products better than the current test equipment. Each product has varying degrees of impurities, ranging from easy-to-wash to sticky material that is nearly impossible to clean with the current washing system. Since installing this combination, the operation has increased production from 5 t/h to 25 t/h, reduced its water consumption by up to 70 % and saved up to 30 % energy for every ton of material.

In preparation for a large mine upgrade project, these positive results have led the operation to put the Hydro-Clean in its plans for all future mineral washing.
The Russian gold producer, who asked to remain unnamed due to the competitive advantage this equipment provides, first contacted the HSG about the Hydro-Clean in 2009 after seeing impressive results at a different gold operation using HSG equipment. The Hydro-Clean appealed to the producer because its current washing system, a traditional washing drum, was not removing enough sand and clay content to produce the required 2 mm to 120 mm gold product with clay content less than 2 %.

 

 

 

 

 

 

• Clay-heavy material on the conveyor

Ideal for use in clay-heavy material deposits (Figs. 2 and 3), the Hydro-Clean employs high-pressure nozzles, rotating at 90 rpm, to spray up to 90 % recycled water on the material with pressures up to 200 bars (2900 psi) to remove silt and clay particles as small as 63 μm from mineral mixtures. While the high-pressure nozzles mounted at the top rotate and spray the material with water, the turbulence in the drum creates additional scrubbing and abrasive forces that enhance the cleaning process to break up agglomerates and clean the particles of stubborn material. The Hydro-Clean also injects high-pressure streams of water into areas of the material (holes, cracks, etc.) that are difficult to reach with traditional cleaning methods. A UME 1200 x 4500 mm rinse screen follows and rinses away the loose sand and clay contaminants. The end result is a cleaner gold ore product with clay content less than 2 % (Fig. 4).

• Final product is a clean washed material

The Hydro-Clean consumes far less water and energy. The test washing drum and two bearing screen used by the Russian gold producer consumes up to 13 m3 (13 000 liters) of water to wash just one ton of material. With the Hydro- Clean and rinse screen, the producer only uses a maximum of 4 m3 (4000 liters) of water for each ton of material, reducing the operation’s water consumption by up to 70 %.

In addition to water savings, the Hydro-Clean 700 model used by the gold producer was able to save up to 1.8 kW of energy for every ton of cleaned material when compared to the washing drum system. The Hydro-Clean’s compact size and reduced weight keep overall operating and structural costs considerably lower than with traditional washing systems – which also require more equipment and a greater footprint. In addition, it experiences little wear with a low-maintenance design that allows for simple replacement of the few standard components that are subject to wear. This allows operations to save thousands of rubbles in yearly maintenance costs. Thanks to the success of the Hydro-Clean 700 test unit, the producer plans to authorize an investment program that will allow the installation of a larger washing operation with several HSG Hydro-Clean 1000 units.

This operation would be capable of washing up to 4 million t of auriferous ore a year. To make the adaption of this new, advanced washing technology easier, the HSG has provided easy-to-understand flow sheets on how the Hydro-Clean would fit into this new operation. If made part of the producer’s every day operation, the Hydro-Clean could reduce its total water usage by up to 70 % and energy costs by up to 30 %.

 

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Haver & Boecker Optimizes Mining Operations with NIAflow Software

Haver & Boecker offers NIAflow plant simulation software. NIAflow helps producers optimize quarry and mine operations by diagramming plant flow, machine placement, product pre-calculations and more.

Haver & Boecker will feature NIAflow in Hall B2, Booth 149 at bauma 2019 in Munich.

Developed by Haver & Boecker engineers, NIAflow instantly analyzes existing or proposed processes, records plant statuses, and recognizes potential for plant optimization. The software is available for download on Windows-based systems. NIAflow supports the user in every engineering phase, from drafting flow diagrams for product pre-calculation to plant start-up and simulating parameter changes. Its intuitive menu control makes it easy for all levels of experience, and Haver & Boecker provides several levels of training, if needed. These can be group, company or even individual training sessions.

“We are constantly developing innovative machines, programs and software to help optimize plant efficiency,”

said Florian Festge, Haver & Boecker managing director.

“NIAflow will serve as a cornerstone in the development of process engineering projects. When paired with other Haver & Boecker technology, such as Pulse vibration analysis software, our customers will hold all of the tools they need to optimize process flow and increase productivity and profits.”

NIAflow allows users to analyze more than 90 different process equipment pieces, from crushers and vibrating screens to material washers and conveyers. Beyond equipment, the system uses scientific-based methods to monitor the operation’s input, output and waste piles. The program calculates the mass and volumetric flow rates as well as the valuable content with machine-specific operating parameters to prevent plant bottlenecks before equipment is in place.

“NIAflow will significantly impact the efficiency and profitability of our mineral processing customers,”

said Joachim Hoppe, Haver & Boecker Mining general manager. “The thought process behind this software development was to give our partners tools to closely monitor their plant setup as a whole, allowing them to identify problems and plant bottlenecks. NIAflow helps producers discover the most efficient set up for existing equipment as well as determine equipment needed to enhance productivity and increase production.”

NIAflow is available for purchase for aggregates and mining. The NIAflow Aggregates version is the extensive, full version of the NIAflow simulation software that allows unlimited machine input. NIAflow Mining complements the Aggregates full version, but offers additional equipment options, such as classifying and sorting equipment.

A basic, complementary version of NIAflow is available for download at www.niaflow.com.

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Successful project ‘Organic Fertilizer’

Fertilizer production with the HAVER pelletizing disc SCARABAEUS

In view of the increasing food requirements of the world’s population and the continuing eluviation of the soil due to intensive agriculture as well as the loss of arable land following sealing of surfaces in urban environments, the exploitation of raw materials and the contamination with pollutants, fertilizers are becoming more and more important in the production of foodstuff.

Plant growth and harvest quality generally depend on how much of the required nutrients there is in the soil. The nutrient of which there is least defines the success of the cultivation. It follows that fertilizers are needed to make up for any deficits. Today, great demands are made on the fertilizers used to increase the yield of crops, for example regarding the mineral combination which supplies the plants with nutrients, or regarding the structure and shape of the fertilizer pellets to improve the flight behaviour when the pellets are spread.

The company “Australian Mineral Fertilisers“ produces fertilizers under the brand name ‘GrowSafe®‘ in Tenterden, West Australia. The biological mineral fertilizer is a material mix. Every pellet contains all combinations of minerals. The pellets are suitable for spreading with standardized sowing and fertilizer distributors. They are sold in Big Bags, 25 kg bags, or as bulk material.

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In recent years, the company was faced with the question whether a 10-year old pelletizing drum could be safely replaced by a pelletizing disc to increase production capacity and product quality.

Owing to the complexity of the processes, the production of mineral fertilizers by means of the pelletizing drum proved to be increasingly complicated and highly inefficient due to the high volume of undersized and oversized pellets beyond the specified product range. The requirements made on a pelletizing disc were very high: In addition to a significant capacity increase from 7 to 20 t/h, it was to improve product homogeneity as well as product quality.

Australian Mineral Fertilisers directly contacted HAVER NIAGARA in Münster. Both sides quickly agreed that test runs were required to provide a basis for further discussion and for dimensioning the system components. In cooperation with HAVER ENGINEERING, a test concept was generated to investigate the suitability for pelletizing, which drew the interest of the project owners at AMF’s.

An AMF associate together with the Plant Manager came to the site of HAVER NIAGARA to gain a personal impression of the manufacturing capacities. They also visited the R&D Center of HAVER ENGINEERING in Freiberg, to learn more about the results of the research. A presentation of detailed results and the demonstration of agglomeration tests with AMF fertilizers convinced the customers of the capabilities of HAVER SCARABAEUS. With up to 80 M.-%, the share of usable fertilizer pellets, produced in the tests under laboratory conditions, exceeded the expectations.

Based on the results of the test runs, the decision was made to replace the pelletizing drum by a pelletizing disc of the HAVER SCARABAEUS® series.

The features that made AMF decide on the HAVER SCARABAEUS 4200 were the robust design, the energy-efficient and low-maintenance drive unit with two asynchronous motors, which allow for start-up even under full load and ensure continued operation if one of the motors fails, as well as the system’s high flexibility, such as the possibility to adjust inclination and speed during ongoing operation.

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Around the time this decision was made, HAVER AUSTRALIA was established in Perth West Australia. This means that the parameters for designing and dimensioning the system could be coordinated quickly, reliably and at low costs between the customers and HAVER NIAGARA.

In addition to the pelletizing disc HAVER SCARABAEUS SC4200 complete with its control system, a HAVER NIAGARA T-Class 1500×5000 for product grading and a Computer Particle Analyzer CPA 2.1 of our wire weaving company for continuous determination of product quality was sold. Other machines from the extensive product portfolio of HAVER NIAGARA are already operating successfully in the chemical fertilizer industry (MAP, DAP, NPK).

With 61 M.-%, the share of usable pellets in the product was above the level of the previously used drum already during the commissioning phase of the pelletizing disc in autumn of 2013. Today, after completed commissioning and some months’ worth of experience, the rate of yield for AMF is up to 80 M.-%. Even the solidity and roundness of the pellets improved significantly. The Plant Manager confirmed that his customers had registered this distinct improvement in quality and said that they were very satisfied. Such success stories not only guarantee the good image of the HAVER group in the eyes of the customers but also provide for sustainable growth of the customer, who can continue to rely on the services of the HAVER Group as a technological partner.

After the completion of commissioning, HAVER Australia took over customer service. They will carry out the regular maintenance of the machines and support the customer in future process optimization.

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Primary crushing plant and processing of riprap in the Sauerland region

 

HAVER NIAGARA GmbH: after one and a half year new operators came to a positive result

The quarry for greywacke “Kleinhammer” is situated among a wooded mountainous region in Sauerland, sixhundred meters in south-east direction to the town Werdohl-Kleinhammer. Since the change of ownership in January 2015, Holcim, a manufacturer of construction material, has operated the quarry. Ownership changes did not result in a change of personnel.

In close collaboration with the previous operator HAVER NIAGARA GmbH designed a new primary crushing plant with subsequent processing of riprap. Besides the primary crushing plant and processing of riprap the scope of supply also included the complete conveying system, the intermediate silo and the dust silo as well as the planning of concrete works and the overall assembly.

The main challenge in this project were great demands of the customer on quality specifications, emission and environmental standards as well as the tight schedule for finalization. Furthermore, the installation should secure a safe and flexible production for the next decades. By means of the designed concept HAVER NIAGARA provided an innovative solution for the fulfilment of these requirements.

An example of the flexible production is the processing plant for riprap. The weight classes 540 kg and 10-60 kg can be processed separately or simultaneously on request by means of two heavy duty screening machines. Soundproofed building facades, energy saving electrical components and the dedusting unit are the main objective with regard to emission and environmental protection.

The period for the realization from the start of project until commissioning took 12 months. Due to the onset of winter at the beginning of 2013 concrete works had to be stopped for several weeks. Therefore, the planned start of production was endangered. The specialist in  from Münster took up that challenge and modified the assembly process, so that contrary to the initial plan the building for the processing of riprap was installed at first. The concrete works on the building for the primary crushing plant have been continued at the same time. As a result of the measures taken, the scheduled start of production was at the beginning of September 2013. On the occasion of the opening celebration on 27 September the installation was formally inaugurated with a spectacular firework.

The successful realization of the project has been achieved by long-term and close cooperation between the previous operator and the experts from HAVER NIAGARA. This is the pooling result of years of experience and the technical know-how of both companies.

The precise realization on the basis of prescriptions is an impressive example for the problem-solving expertise of HAVER NIAGARA – particularly with regard to an efficient conception of primary crushing plants and its precise implementation.

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