scholarly journals Conceptual design of a fully automated continuous mining system operating under remote supervisory control. Final report

1977 ◽  
1976 ◽  
Vol 96 (1) ◽  
pp. 50-58
Author(s):  
T. Matsuzaka ◽  
S. Ishikawa ◽  
K. Funaki

2017 ◽  
Vol 21 ◽  
pp. 474-481
Author(s):  
Nicuşor Baroiu ◽  
Virgil Gabriel Teodor ◽  
Florin Iftode

The paper describes the method that can be used to monitoring of a water feeding system of a civil building and its subsystems, using a graphic interface of a soft-ware pack – SCADA (Supervisory Control and data Acquisition), WinCC Flexible. The effective adjustment of the pressure of the water feeding system implies using specific elements: sensors, execution elements, programmable automatons and monitoring devices. In the paper, also is analysed the situation in which three centrifugal pumps are utilized as execution elements, a pressure sensor – to measure the pressure of the water feeding system of the consumer, three sensors that detect the presence of water in each well and a Siemens programmable automaton, from the SIMATIC S7-300 series, which controls the process and a PC for the acquisition of data and for monitoring. Thus, it presents a schematic system operating water supply, logic operation sequence control, protection, signage and display alarms


Author(s):  
Tetsuo Yamazaki ◽  
Amon Yamada ◽  
Rei Arai ◽  
Naoki Nakatani

Manganese nodules on deep ocean floors have been interested in as future metal resources these forty years. The Total Materials Requirement (TMR) of the conventional proposed mining method, however, is very high because of the much lifted water with the nodules from the seafloor to the sea surface and the longer transportation from the mining site to the smelting plant. An innovative conceptual design of the TMR-less mining system is presented. The economy is examined and compared with the one of the conventional method.


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