Safety design requirements for routine maintenance of screening equipment
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Insinööritieteiden korkeakoulu |
Master's thesis
Ask about the availability of the thesis by sending email to the Aalto University Learning Centre oppimiskeskus@aalto.fi
Authors
Date
2017-03-20
Department
Major/Subject
Mechanical Engineering
Mcode
IA3027
Degree programme
Master’s Programme in Mechanical Engineering
Language
en
Pages
36+9
Series
Abstract
The purpose of the thesis was to evaluate whether the crushing and screening products of Metso comply to the new safety standard which is being drafted by the European committee for standardization (CEN). Evolution of the technology and inability of the person to adapt to those technology, always demands an update on the prevailing safety features. The need for a new set of standard is the mere demand to create a balance between the advancement in the technology and safety of the users. The target of the thesis was to highlight the requirement for revisions in the product development process of the machinery to comply with the new standard if required. The document has been prepared based on the draft of the new standard prEn 1009 series which is under continuous amendment. Screening machine ST2.8 and Crushing machine LT330D were the subject of study. The scope of the thesis was to study and analyze the maintenance tasks related to screening part of the machine and suggest the required change to make it compatible with the new standard. The screen replacement procedure has been studied and analyzed for the safety requirements. The conclusion and suggestions has been drawn based on the literature review and screen replacement videos provided. The safety of the users and the environment has been always considered while designing the machine. The general standards, ergonomic standards, inspection standards and maintenance standards related to safety are followed during the product development of Metso products. The information for use has been provided in detail to the users and warning signs and use of protective overalls have been suggested in relevant places. The safety requirements set in the new standard are obeyed to a remarkable level but since the standard is under continuous amendment it is advised to revise the requirements for the machine once it is finalized.Description
Supervisor
Partanen, JouniThesis advisor
Heikkilä, JuhamattiKeywords
screening equipment, safety standards, product development, screen mesh