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Ultraodstredivý mlyn ZM 200

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Technické správy (27)

Secondary fuels – Energy for the cement industry
Due to decreasing resources and increasing market prices for primary fuels like oil, gas or coal, it is paramount for the cement industry to search for alternative energy sources. With regard to the CO2 emissions trading, a switch to energy sources which have a neutral CO2 balance can be rather profitable. Usually, these are non-fossil fuels. Industries with high energy consumption have made increasing use of alternative fuels during the last years. Accordingly, the use of so called secondary fuels (also waste derived fuels/wdf or refuse derived fuels/rdf) has gained importance. These are mostly combustible fractions of domestic or industrial waste which cannot be recycled.
Plastic - one material with many variations
Thanks to the almost unlimited variety of plastics, their fields of application are huge. Abbreviations such as PE, PET, PC, PP , PBT or ABS not only describe a simple material but a whole class of products with many different characteristics. Depending on the intended use, plastic needs to be, for example, impact-resistant, breakproof, heat-resistant or solvent-resistant.
Toxic analyses of biological samples
Cryogenic grinding facilitates the preparation of animal samples
Detection of Mycotoxins in Nuts
Preliminary and fine size reduction
Fat Analysis in Food and Feed
Size reduction of samples with a high fat content
Traces of Heavy Metals in Toys
From Size Reduction to Analysis
Milling of Samples in a Fertilizer Laboratory
The fertilizer laboratory of the Division of Regulatory Services at the University of Kentucky uses the Retsch ZM 200 ultra centrifugal mill for milling fertilizer samples.
Sick with Dolls
Traces of Heavy Metals in Toys
Cement - representative sample preparation is important
To produce high-quality cement, the mineralogical and chemical composition of raw materials as well as intermediate and finished products has to be determined. At each stage of the production, samples have to be taken, processed and analysed to ensure quality control without gaps. Retsch offers a range of instruments that are used for sample preparation during the complete production process, from the quarrying of the raw materials to the final product. The typical sample preparation process involves preliminary size reduction, sample division and fine size reduction before the sample can be submitted to further analyses....
Tracking down hazardous substances (RoHS/WEEE)
Preparing electronic waste for obtaining representative analytical samples.
A solution for converting an electrical appliance into a meaningful analytical sample is described using a remote-controlled toy car as an example.
Size reduction within the context of sample preparation
In general “size reduction” is taken to mean the disintegration of solid substances by mechanical forces without altering their state.
Sample Preparation of Electronic Scrap in the Context of RoHS and WEEE
Since August 2004 new EU directives for the disposal of used electrical and electronic appliances as well as the restricted use of certain hazardous substances in these devices have become effective.
The preparation of samples of solid substances for spectroscopic analysis
X-ray fluorescence spectrometry is one of the most versatile multi-element methods of chemical analysis. The technique is based on excitation of fluorescent radiation from a sample by bombarding it with high energy X-ray quanta and subsequent study of the characteristic X-ray radiation emitted by its elements.
Bigger is not Better
There is a trend towards smaller samples that have more controlled particle size and yet remain representative of the material being analyzed.
Sample Preparation of Plastics for X-Ray-Fluorescence Analysis
The elemental analysis of plastics has become more and more important. EC directive 91/338/EWG regulates the ban of cadmium in PVC, EC directive 94/62/EC defines limits for cadmium, lead, chromium and mercury in packing materials and EC directive 2000/53/EC defines limits for the same elements in end-of-life vehicles. This has created a strong need for a rapid and reliable testing method.
Cryogenic Preparation of Sample Materials
Within the context of sample preparation, size reduction plays an important role as it has a substantial influence on the results of the subsequent analysis. If the particles are too coarse or non-homogeneous the results of the analysis may turn out to be incorrect, especially if there is only a very small amount of sample material which represents the total amount.
Sample preparation of electronic scrap with SM 2000 and ZM 200
RETSCH mills in the context of RoHS and WEEE
Reliable sample preparation in food technology
An efficient sample preparation procedure for rapid, reliable and reproducible analytical results is becoming increasingly important today. Ever more stringent requirements are being set both in research and production, e.g. for product monitoring and quality control.
Analysis of cadmium in plastics
In recent years, mass media have focused on the topics of the environment and environmental conservation. With the advancement in scientific technology, resource development has progressed.
The Representative Sample Preparation of Waste
Now that a certain environmental awareness has developed in the population over the past few years, our efforts are geared not only to avoiding waste, but also to reducing the mountains of waste which still arise by means of raw material recovery and the reintroduction of secondary raw materials into the industrial cycle.
Fettbestimmung in Lebens- und Futtermitteln
Methoden und Vorgehen
Probenvorbereitung von Böden
Bestimmung von anorganischen Inhaltsstoffen in Bodenproben

In Industrienationen mit hoher Besiedlungsdichte und einem begrenzten Angebot an Industrie- und Gewerbegebieten unterliegt die Nutzung von Gebäuden und Flächen einem dauerhaften Wandel. Daher sind Bodenuntersuchungen für Investoren, Behörden und Privatpersonen unumgänglich. Umweltanalytische Untersuchungen bilden die Basis, um Gefährdungen aufzuzeigen und damit Menschen und eingesetztes Kapital zu schützen. Bei SGS Institut Fresenius in Herten werden bis zu 400 Bodenproben am Tag aufgearbeitet und analysiert. Hierbei wird sehr genau darauf geachtet, dass geltende Normen und Verordnungen eingehalten werden. In Deutschland gilt die BbodSchV, wobei die Analytik auch auf die Vorschriften anderer Länder angepasst wird.
Schnell und schonend zerkleinern
In zahlreichen Labors werden täglich viele unterschiedliche Probenmaterialien aufbereitet. Für die Zerkleinerung von Feststoffproben auf Analysenfeinheit wird eine Mühle benötigt, die nicht nur vielseitig einsetzbar und leicht zu reinigen ist, sondern die auch eine reproduzierbare Probenvorbereitung – und damit zuverlässige Analysenergebnisse - garantiert.
Mit der Ultra-Zentrifugalmühle ZM 200 bietet RETSCH eine Rotormühle an, die nicht nur sehr schnell, sondern auch äußerst materialschonend zerkleinert und, dank einer umfangreichen Zubehörpalette, universell einsetzbar ist. Mit ihrem kraftvollen Powerdrive-Antrieb vermahlt die ZM 200 weiche bis mittelharte und faserige Materialien extrem schnell auf Endfeinheiten bis unter 100 µm und steigert so den Probendurchsatz im Labor.
Von der Probe zum Pressling – Probenvorbereitung von Feststoffen für die Röntgenfluoreszenz
Aufgrund der Einfachheit der eigentlichen RFA-Messung wird häufig der Aspekt der optimalen Probenvorbereitung übersehen, was sich dann in mangelnder Reproduzierbarkeit bis hin zu falschen Ergebnissen auswirken kann.
Zerkleinern von Proben in einem Düngemittellabor
Für die genaue und reproduzierbare Analyse von Düngernährstoff, Spurennährstoffen und Spurenmineralien ist das vorherige Zerkleinern der Probe unverzichtbar. Das Düngerlabor der Division of Regulatory Services der University of Kentucky verwendet zum Homogenisieren der Proben die Ultra-Zentrifugalmühle ZM 200 von Retsch.
Los especial del pigmento
Debido a la ilimitada variedad de colores y texturas que ofrencen los recubrimientos en polvo; muchos de los nuevos recubrimientosde aplicación especifica se crean en el laboratorio en pequeñas cantidades que luego se le envían al cliente para su aplicación y aprobación.
Molienda ultrarrápida y ultrafina
El nuevo molino ultracentrífugo ZM 200 de RETSCH es un molino de rotor no sólo extremadamente rápido y cuidadoso con el material molido, sino también de uso universal gracias a su amplia gama de accesorios.

Test Reports (142)

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Zákaznícky časopis "the sample" (21)

No. 36
The Art of Milling - Contemporary Milling Technologies
No. 33
SAMPLE PREPARATION IN PRACTICE & NEW RETSCH INSTRUMENTS
No. 32
SAMPLE PREPARATION for Instrumental Analysis
No. 31
Grand Prix Season 2008 & New RETSCH Instruments
No. 30
Mills and Particle Analyzers for Environmental Analysis
No. 28
Think big but grind fine!
No. 27
Sample Preparation in Biology and Medical Science
No. 26
CAMSIZER - Optical Particle Size and Shape Analysis
Special Edition
Product Highlights
No. 25
Retsch presents the new Ultra-Centrifugal Mill ZM 200
No. 24
Anniversary issue of the RETSCH customer magazine 10 years "the sample"
No. 23
New Sieve Shakers AS 300 and AS 400 / Biology and Medicines
No. 21
Sample preparation for instrumental analysis
No. 20
Pharmaceutical Industry And Medicine
No. 17
Environmental Technology
No. 15
Preparation and testing of glass an ceramics
No. 14
Preparation and analysis of foodstuffs
No. 12
Particle analysis by digital image processing
No. 09
From jelly babies to car tyres...
the new Ultra-Centrifugal Mill ZM 100
No. 04
Focus: Sieving
No. 01
RETSCH: Worldwide on the spot

Z tlače (1)

  • Versatile Ultra Centrifugal Mill with New Cyclone

    RETSCH’s powerful and versatile ZM 200 offers the ultimate in performance and operating comfort. It is used for the rapid size reduction of soft to medium-hard and fibrous materials down to 40 microns. Because of the efficient size reduction technique and the comprehensive range of accessories the ZM 200 ensures the gentle preparation of analytical samples in a very short time.
    For applications which require an optimum air throughput (e. g. heat sensitive materials) or if larger sample volumes need to be processed, the use of a cyclone is recommended. RETSCH offers a re-designed cyclone with improved functionalities for collector volumes from 250 ml to 5 liters which adds to the ZM 200’s great flexibility.
    Thanks to the wide range of accessories with different rotors, ring sieves and collectors, the ZM 200 can be easily adapted to suit a wide range of applications such as, for example, heavy-metal-free grinding, size reduction of abrasive materials or processing small volumes up to 20 ml.

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