Powders and Bulk Solids: Behavior, Characterization, Storage and Flow
Autor Dietmar Schulzeen Limba Engleză Paperback – 4 sep 2022
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Specificații
ISBN-13: 9783030767228
ISBN-10: 3030767221
Pagini: 625
Ilustrații: XVII, 625 p. 461 illus.
Dimensiuni: 155 x 235 mm
Greutate: 0.89 kg
Ediția:2nd ed. 2021
Editura: Springer International Publishing
Colecția Springer
Locul publicării:Cham, Switzerland
ISBN-10: 3030767221
Pagini: 625
Ilustrații: XVII, 625 p. 461 illus.
Dimensiuni: 155 x 235 mm
Greutate: 0.89 kg
Ediția:2nd ed. 2021
Editura: Springer International Publishing
Colecția Springer
Locul publicării:Cham, Switzerland
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Cuprins
Introduction.- Fundamentals.- Flow properties of bulk solids.- Practical determination of flow properties.- A more detailed view at properties of bulk solids.- Discussion of testers and test procedures.- Properties exhibited by some bulk solids.- Examples of measured flow properties.- Calculation and measurement of stresses in bins and silos.- Silo design for flow.- Silo configurations.- Discharge of bulk solids.- Segregation.- Silo quaking and silo honking.- Sample problems and solutions.
Notă biografică
Dietmar Schulze is Professor of Mechanical Process Engineering at the Ostfalia University of Applied Sciences in Wolfsburg/Germany since 1996. He is Expert in the areas of powder characterization and handling. Dietmar Schulze holds seminars on powder technology and has published more than 140 papers. In 1991, he incorporated the consultancy “Schwedes and Schulze Schüttguttechnik” with his Former Doctoral Supervisor, Prof. Jörg Schwedes, and in 1993, he founded the company “Dr. Dietmar Schulze Schüttgutmesstechnik” being active in developing and manufacturing ring shear testers for the measurement of flow properties of powders
Textul de pe ultima copertă
This book covers powder flow properties, their measurement and applications. A wide range of problems such as flow obstructions, segregation and vibrations are discussed. The content helps to understand the powder flow and provides practical solutions. The fundamentals of bulk solids flow are outlined: particle–particle interactions, stress, friction, strength, density, flow properties and methods of measurement, shear testers and other test procedures, specific properties of powders and how they are influenced by moisture, temperature and flow agents. The application of the flow properties in the design of properly working bulk solid containers like bins, silos and hoppers is also explored. Besides, the book also covers the technical design of silo walls, feeders, discharge aids, inserts, the assessment of stresses in silos, segregation and how to avoid it and vibrations or shocks occurring in silos
Caracteristici
Helps to understand the fundamental behavior of powders and bulk solids Identifies suitable test methods and helps to interpret and understand their results Explains how bulk solids flow influences the design of a plant or an installation
Descriere
Descriere de la o altă ediție sau format:
In the engineering community the handling of powders and bulk solids is called bulk solids technology being, at least in Germany, part of mecha- cal process engineering. Process engineering involves study of the change and transformation of material properties. If mechanical processes are used for this transformation, the engineering discipline is called mechanical process engineering. The best known unit operations of mechanical pr- ess engineering are grinding, agglomeration, mixing, and separation. Due to the mechanical treatment, the particles – either single particles or a c- lection of particles – increase in value. To profit from this value increase industry and academia perform research and development. When handling bulk solids, e. g. storing, dosing and conveying, no value increase can be achieved, because the material properties are not changed. What can be achieved is “at most” the elimination of problems which is less interesting research and development compared to the development of new products or processes with the chance to obtain a patent. A silo for the intermediate storage of bulk solids often seems to be only a single, unimportant element for the realization of a larger process. Bulk solid is filled into the silo continuously or discontinuously and discharged later at predetermined points of time in desired quantities. That is not - ways unproblematic. The known problems of arching and ratholing can lead to irregular discharge or complete blockage.
In the engineering community the handling of powders and bulk solids is called bulk solids technology being, at least in Germany, part of mecha- cal process engineering. Process engineering involves study of the change and transformation of material properties. If mechanical processes are used for this transformation, the engineering discipline is called mechanical process engineering. The best known unit operations of mechanical pr- ess engineering are grinding, agglomeration, mixing, and separation. Due to the mechanical treatment, the particles – either single particles or a c- lection of particles – increase in value. To profit from this value increase industry and academia perform research and development. When handling bulk solids, e. g. storing, dosing and conveying, no value increase can be achieved, because the material properties are not changed. What can be achieved is “at most” the elimination of problems which is less interesting research and development compared to the development of new products or processes with the chance to obtain a patent. A silo for the intermediate storage of bulk solids often seems to be only a single, unimportant element for the realization of a larger process. Bulk solid is filled into the silo continuously or discontinuously and discharged later at predetermined points of time in desired quantities. That is not - ways unproblematic. The known problems of arching and ratholing can lead to irregular discharge or complete blockage.
Recenzii
Aus
den
Rezensionen:“...
Im
ersten
Teil,
der
etwa
250
Seiten
umfasst,
gelingt
es
dem
Autor
durch
anschauliche
Abbildungen
und
eine
verständliche
Darstellung,
dem
Leser
einen
tiefen
Einblick
in
die
Schüttguttechnik
zu
geben.
...
Trotz
dieser
Ausführlichkeit
...
bleibt
das
Buch
durch
seine
klare
und
übersichtliche
Struktur
gut
lesbar.
Im
zweiten
Teil
...
fließen
die
...
praktischen
Erfahrungen
des
Autors
ein
...
Das
...
Ziel,
einem
breiten
Leserkreis
eine
verständliche
Einführung
in
die
Welt
der
Schüttguttechnik
zu
geben
...
wird
voll
und
ganz
erreicht.
…
Es
ist
seit
langem
das
beste
Buch
…“
(R.
Schmitt,
in:
Chemie
Ingenieur
Technik,
April/2010,
Vol.
82,
Issue
4,
S.
553
f.)