By Wolfgang Pietsch(auth.)
An updated evaluation facing the incidence and key purposes of agglomeration, together with undesirable adhesion and important dimension growth in pharmaceutical, nutrition and animal feed, chemical, fertilizer and agrochemical, mineral, construction fabric and ceramic, steel, good gas, in addition to different industries. additionally, the publication emphasizes contemporary advancements on the point of unmarried debris and purposes of agglomeration phenomena in nanotechnology.
the writer has an enormous educational and business event as researcher, instructor, developer, fashion designer, seller, and person. he's knowledgeable and advisor within the box of agglomeration, its applied sciences and items. This historical past makes the precise review of the topic attainable. Wolfgang Pietsch has held a few best positions in either US and German businesses and is a widespread speaker at meetings and seminars. He has already written 3 prior books on agglomeration.
meant for everyone operating in businesses that strategy and deal with particulate solids, this booklet is helping in realizing and controlling undesirable agglomeration in addition to selling the applying, improvement, and development of tools for the helpful use of agglomeration.Content:
Chapter 1 creation (pages 1–2):
Chapter 2 Agglomeration as a normal, autonomous, and Interdisciplinary box of technological know-how (pages 3–6):
Chapter three Agglomeration basics (pages 7–21):
Chapter four Undesired Agglomeration:Methods of averting or Lessening its impact (pages 23–36):
Chapter five valuable makes use of of Agglomeration:Agglomeration applied sciences and strategies (pages 37–58):
Chapter 6 commercial functions of measurement expansion by way of Agglomeration (pages 59–478):
Chapter 7 Powder Metallurgy (pages 479–483):
Chapter eight functions in Environmental keep watch over (pages 485–539):
Chapter nine improvement of business functions (pages 541–588):
Chapter 10 Optimization and Troubleshooting of Agglomeration platforms (pages 589–631):
Chapter eleven functions of Agglomeration Phenomena for unmarried debris and in Nanotechnologies (pages 633–653):
Chapter 12 Outlook (pages 655–659):
Chapter thirteen Bibliography (pages 661–691):
Chapter 14 word list of Application?Related phrases linked to Agglomeration (pages 693–719):
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Extra resources for Agglomeration in Industry: Occurrence and Applications
The new cut size xt2’ is still somewhat larger than the desired xmin, at which all particles would have been removed from the fluid, but agglomeration definitely helps to move the actual cut size closer to the ideal one. Agglomeration in Industry. Wolfgang Pietsch Copyright ª 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim ISBN 3-527-30582-3 24 4 Undesired Agglomeration: Methods of Avoiding or Lessening its Effect Tab. 1 The occurrence of undesired and desired agglomeration in mechanical and related process technologies Unit operation Process Separation Mixing Comminution Particle size enlargement Conveying Storage Batching, metering Drying Explanations Agglomeration Screening, Sieving Classifying, Sorting Flotation Dust Precipitation Clarification, Thickening Particle Size Analysis Dry Mixing Wet Mixing Stirring Suspending, Dispersing Fluidized Bed Dry Grinding Wet Grinding Agglomeration } Briquetting } Granulating } Pelletizing } Pelleting } Sintering Tabletting Mechanical Conveying Vibratory Conveying Pneumatic Conveying Silos, Hoppers, Stockpiles (+) sometimes YES (À) sometimes NO + YES À NO Undesirable Desirable + + + (-) (-) ++ + + + + + + + (+) (+) + + -(+) + (+) + - (+) ++ + + + + + + ++ ++ (+) (+) --+ ++ decisively YES - - decisively NO In general, whenever the task is to remove all particulate solids from a fluid, agglomeration will be advantageous.
7. Tumble or growth agglomeration: high-density tumbling bed, high-shear tumbling bed, high-density/high-shear with abrasion or crushing transfer, low-density fluidized bed, low-density particle clouds, agglomeration in stirred suspensions, immiscible liquid agglomeration. B Pressure agglomeration: 1. low-pressure agglomeration, extrusion through screens, 2. medium-pressure agglomeration, pelleting, extrusion through perforates die plates, 3. high-pressure extrusion, ram presses, 4. high-pressure agglomeration, – in confined spaces, punch-and-die pressing, tabletting, – in confined spaces, isostatic pressing, – in semi-confined spaces, roller presses.
Curing can even accelerate hull formation owing to heat and moisture retention. In products that respond well to curing, additional development of crystals on the granule surfaces during subsequent storage is not sufficient to cause significant caking. However, many products do not improve during this type of curing. Another curing method will be described below. The oldest method of conditioning granular materials is coating with a parting agent. Storage properties are improved after the addition of up to 3 % of an extremely fine particulate solid such as pollen, diatomaceous earth, kaolin, vermiculite, pulverized limestone, magnesium oxide, and a variety of other inexpensive, very fine powders.
Agglomeration in Industry: Occurrence and Applications by Wolfgang Pietsch(auth.)