Continuous handling equipment and systems. Safety and EMC requirements for fixed belt conveyors for bulk materials

2015 ◽  
Keyword(s):  
Bulk Materials ◽  
Belt Conveyors

Computer Aided Design of Bucket Type Elevators and Belt Conveyors

1992 ◽  
Author(s):  
Birol Kilkis ◽  
S. Selçuk Sager
Keyword(s):  
Computer Program ◽  
Granular Materials ◽  
Computer Aided Design ◽  
Transportation Systems ◽  
Design Tool ◽  
The Other ◽  
Bulk Materials ◽  
Computer Aided ◽  
Belt Conveyors ◽  
Aided Design

Abstract One of the most effective transportation systems especially for bulk materials is continuous conveyors. They enable to transport materials quickly, economically and with rather simple means of handling. On the other hand for transportation needs involving steep grades and elevations, bucket type elevators are suitable especially for granular materials. In this study a computer program has been developed in order to provide a computer aided design tool for both bucket type elevators and belt conveyors. Operation of the program is interactive. Thus, some critical decisions during the design can be made by the designer, himself. The program has been written in BASIC programming language for Macintosh Plus personal computers. It can be also used in Macintosh II computers. The computer program standardizes all design results and the design conforms the relevant TSE, DIN and ISO standards. All standard tables used in the program, are available in the database. The database can be easily edited and updated. A design report can also be obtained at the end of the design as well as the screen output of the design session.

scholarly journals Healthy speed control of belt conveyors on conveying bulk materials

2018 ◽  
Vol 327 ◽  
pp. 408-419 ◽  
Author(s):  
Daijie He ◽  
Yusong Pang ◽  
Gabriel Lodewijks ◽  
Xiangwei Liu
Keyword(s):  
Speed Control ◽  
Bulk Materials ◽  
Belt Conveyors

Application of a Discrete Double-Row Scraper Cleaner as an Efficient Procedure of Cleaning of Belt Conveyors Aimed at Transporting Bulk Materials

Metallurgist ◽  
2021 ◽  
Vol 64 (11-12) ◽  
pp. 1340-1346
Author(s):  
I. I. Valiullin ◽  
O. A. Kobelev ◽  
M. G. Naumova ◽  
I. G. Morozova ◽  
A. N. Pashkov ◽  
...  
Keyword(s):  
Bulk Materials ◽  
Double Row ◽  
Efficient Procedure ◽  
Belt Conveyors

Some early history of replica techniques for electron microscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1076-1077
Author(s):  
Robert M. Fisher
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Optical Microscope ◽  
Early History ◽  
Bulk Materials ◽  
Thin Sections ◽  
Transmission Electron ◽  
Reflected Light ◽  
History Of ◽  
Electron Microscopes

By 1940, a half dozen or so commercial or home-built transmission electron microscopes were in use for studies of the ultrastructure of matter. These operated at 30-60 kV and most pioneering microscopists were preoccupied with their search for electron transparent substrates to support dispersions of particulates or bacteria for TEM examination and did not contemplate studies of bulk materials. Metallurgist H. Mahl and other physical scientists, accustomed to examining etched, deformed or machined specimens by reflected light in the optical microscope, were also highly motivated to capitalize on the superior resolution of the electron microscope. Mahl originated several methods of preparing thin oxide or lacquer impressions of surfaces that were transparent in his 50 kV TEM. The utility of replication was recognized immediately and many variations on the theme, including two-step negative-positive replicas, soon appeared. Intense development of replica techniques slowed after 1955 but important advances still occur. The availability of 100 kV instruments, advent of thin film methods for metals and ceramics and microtoming of thin sections for biological specimens largely eliminated any need to resort to replicas.

STEM Study of Surface Plasmon Excitation in Small Spherical Particles

1990 ◽  
Vol 48 (2) ◽  
pp. 42-43
Author(s):  
Daniel UGARTE
Keyword(s):  
Energy Loss ◽  
Spherical Particles ◽  
Small Particles ◽  
Bulk Materials ◽  
Low Loss ◽  
Plasmon Excitation ◽  
Surface Modes ◽  
Surface Plasmon Excitation ◽  
Analytical Electron ◽  
Analytical Electron Microscope

Small particles exhibit chemical and physical behaviors substantially different from bulk materials. This is due to the fact that boundary conditions can induce specific constraints on the observed properties. As an example, energy loss experiments carried out in an analytical electron microscope, constitute a powerful technique to investigate the excitation of collective surface modes (plasmons), which are modified in a limited size medium. In this work a STEM VG HB501 has been used to study the low energy loss spectrum (1-40 eV) of silicon spherical particles [1], and the spatial localization of the different modes has been analyzed through digitally acquired energy filtered images. This material and its oxides have been extensively studied and are very well characterized, because of their applications in microelectronics. These particles are thus ideal objects to test the validity of theories developed up to now.Typical EELS spectra in the low loss region are shown in fig. 2 and energy filtered images for the main spectral features in fig. 3.

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