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Utveckling av ett ventilationssystem för produktionsortar vid skivrasbrytning
2011 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This work has been carried out on assignment by Malmfalten AB. Malmfalten AB has had an idea about developing a new type of ventilation system for production areas in sublevel caving. The existing ventilation system requires that the ventilation ducts is taken down from the ceiling of the production area before long hole drilling is carried out. After finalized long hole drilling the ventilation ducts is yet again mounted at the ceiling of the production area. The purpose of this work has been to give a recommendation of a construction for a ventilation system that avoids this issue and thereby obtain both economical and work environment gain The following methods have been applied to fulfill the purpose of this work: interviews, observations, function modeling, requirement specification and PUGH:s decision matrix. To ensure that the final product fulfills as many user demands as possible much of the time related to this work were spent at this topic. The result of was a correct as possible requirement specification. The result of the work is a ventilation system which is built up by sections where every section is five meters. Each section consists of a suspension device and a cone formed ventilation duct. When long hole drilling or blasting is performed the ventilation duct is located inside the suspension device. This makes it possible to perform long hole drilling with the ventilation mounted as well supplying shelter for the ventilation duct while blasting. When turning on the fan the ventilation duct shall by the air flow be located to the position were working ventilation is obtained. The result of the work involves new possibilities concerning the design of the ventilation duct, for example the material and thickness of the ventilation duct. The purpose of this work has been achieved whereas the constructed ventilation system makes both economical and working environment gain possible. Economical gain considering less consumption of ventilation ducts, time savings due to work with the ventilation and above all the possibility to avoid production interruptions due to work with the ventilation. Further tests are though needed to ensure the function of the constructed ventilation system. This should be done in the test environment consisting of a production area in miniature as well as prototype of the suspension device, both produced within this work.

Place, publisher, year, edition, pages
2011. , 48 p.
Keyword [en]
Keyword [sv]
URN: urn:nbn:se:ltu:diva-51048Local ID: 84696755-b0e6-45c8-b05e-cff008dbe8fbOAI: diva2:1024411
Subject / course
Student thesis, at least 15 credits
Educational program
Mechanical Engineering, bachelor's level
Validerat; 20110209 (anonymous)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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Wasara, Jonas

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