Document Detail


Impact of Air Distribution on Efficiency of Dust Capture from Metal Grinding - Bench Test Method.
MedLine Citation:
PMID:  22020017     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
According to the Machinery Directive 2006/42/EC, one of the essential requirements relating to occupational safety and health hazards is to prevent dust pollution emitted by machinery during the implementation processes. Research on evaluation of emissions from machinery, according to the method of test bench using tracer gases, are currently being conducted in CIOP-PIB. This article presents some aspects of dust emission and efficiency of local exhaust ventilation (LEV) during metal grinding. Studies were performed with 10 sources of dust emissions during grinding. To evaluate the pollutants emission in the process of grinding metal products sulfur hexafluoride (SF(6)) was selected as a tracer gas. The results show that wherever dust is emitted, the LEV should be supported by the general ventilation. Ensure good interaction between all elements of modifying the air flow and the spread of pollutants in the surroundings of the LEV is essential to effective protection of human working zone against pollutants. We used five variants of ventilation: ventilation turned off, the LEV, one-way general ventilation, mixed general ventilation and displacement general ventilation. An increase in the efficiency of dust capture depending on the source of emission by 2.5-14 % was observed. This confirms that characteristics of flow resulting from the operation of ventilation is important in the spread of pollutants in the room.
Authors:
Tomasz Jankowski
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-20
Journal Detail:
Title:  Industrial health     Volume:  -     ISSN:  1880-8026     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985065R     Medline TA:  Ind Health     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Laboratory of Aerosols, Filtration and Ventilation, Department of Chemical, Aerosol and Biological Hazards, Central Institute for Labour Protection - National Research Institute.
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