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Automatisk utvärdering av mätvärden från en hammarkvarnsprocess

Almquist, Carl (1984) In MSc Theses
Department of Automatic Control
Abstract
The process in a mill is frequently monitored with the assistance of lists of measurement values and alarms from the process. Much time and concentration is sometimes needed to interpret these lists. If the process is described using a model the interpretation can be made automatically by a computer. This would unload the operator and permit the concentration of the operator to be focused on running the process in an economic and energy saving manner. The possibilities of creating such a model, describing a hammer mill process, are studied. Different parameters and methods of measuring these are discussed. The results of the discussions lead to a series of measurements related to the process. An attempt is made to set up a model to... (More)
The process in a mill is frequently monitored with the assistance of lists of measurement values and alarms from the process. Much time and concentration is sometimes needed to interpret these lists. If the process is described using a model the interpretation can be made automatically by a computer. This would unload the operator and permit the concentration of the operator to be focused on running the process in an economic and energy saving manner. The possibilities of creating such a model, describing a hammer mill process, are studied. Different parameters and methods of measuring these are discussed. The results of the discussions lead to a series of measurements related to the process. An attempt is made to set up a model to describe how efficiently the energy is used and the quality of the product. The result is expressed as the coefficient of process efficiency and is given in percent. The measurement results show very complicated interrelations. They are too few to allow an acceptable model to be set up. In spite of this some conclusions have been made. It seems as if the hammer mill used for the investigations is run unefficiently and with great stress. The probable reasons are brought up and suggestions are made to eliminate the causes. (Less)
Please use this url to cite or link to this publication:
author
Almquist, Carl
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5311
ISSN
0280-5316
language
Swedish
id
8849730
date added to LUP
2016-03-28 19:36:11
date last changed
2016-03-28 19:36:11
@misc{8849730,
  abstract     = {The process in a mill is frequently monitored with the assistance of lists of measurement values and alarms from the process. Much time and concentration is sometimes needed to interpret these lists. If the process is described using a model the interpretation can be made automatically by a computer. This would unload the operator and permit the concentration of the operator to be focused on running the process in an economic and energy saving manner. The possibilities of creating such a model, describing a hammer mill process, are studied. Different parameters and methods of measuring these are discussed. The results of the discussions lead to a series of measurements related to the process. An attempt is made to set up a model to describe how efficiently the energy is used and the quality of the product. The result is expressed as the coefficient of process efficiency and is given in percent. The measurement results show very complicated interrelations. They are too few to allow an acceptable model to be set up. In spite of this some conclusions have been made. It seems as if the hammer mill used for the investigations is run unefficiently and with great stress. The probable reasons are brought up and suggestions are made to eliminate the causes.},
  author       = {Almquist, Carl},
  issn         = {0280-5316},
  language     = {swe},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Automatisk utvärdering av mätvärden från en hammarkvarnsprocess},
  year         = {1984},
}