Fire Parameters of Spruce (Picea abies Karst. (L.)) Dust Layer from Different Wood Technologies Slovak Case Study

Applied Sciences

Miloš Hitka¹  Jana Jaďuďová²  Iveta Marková³  Eva Mračková⁴  Jarmila Schmidtová⁵  Ivana Tureková⁶ 

[1] Department of Economics, Management and Business, Technical University in Zvolen, Masaryka 24, 960 01 Zvolen, Slovakia;Department of Environmental Management, Faculty of Natural Sciences, Matej Bel University in Banská Bystrica, Tajovského 40, 974 01 Banská Bystrica, Slovakia;Department of Fire Engineering, Faculty of Security Engineering, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia;Department of Fire Protection, Technical University in Zvolen, Masaryka 24, 960 01 Zvolen, Slovakia;Department of Mathematics and Descriptive Geometry, Technical University in Zvolen, Masaryka 24, 960 01 Zvolen, Slovakia;Department of Technics and Technology, Pedagogical Faculty, Constantine the Philosopher University in Nitra, Tr. A. Hlinku 1, 949 74 Nitra, Slovakia;

关键词: spruce dust;    moisture;    particle size analysis;    minimum ignition temperatures of the deposited dust layer;   

DOI  :  10.3390/app12020548

来源: DOAJ

【 摘 要 】

The issue of the formation of wood dust particles in the work environment is still an actual topic in terms of its impact on employee health and the risk of fire or explosion in a woodworking operation. This article deals with the characteristics of spruce dust (Picea abies Karst. (L.)), which was taken from several types of wood technology. Experimental samples of spruce dust were taken from four types of sawing technologies, including grinding, briquetting and from the suction device container. The physical parameters of the samples taken were monitored and the particle size analysis was determined. The granulometric composition of the samples is significantly different. The sample of spruce wood dust from sawing has the most numerous fraction (250 µm), while the sample from grinding has the most numerous fraction 63–250 µm (87%).The aim of the paper was to monitor the minimum ignition temperature of the settled spruce dust layer and to look for a significant dependence of the minimum ignition temperature and ignition time on the type of spruce dust sample. A significant dependence was not confirmed. Significant moisture dependence of the samples was confirmed; the highest humidity was observed in the container, the lowest in sawing.

【 授权许可】

Unknown