The dimensional characteristics of the particles of wood dust of selected deciduous trees considering to explosion

摘要

The article is dealing with wood dust particle size problem in consideration of their fire and explosion. The aim of the thesis is statistical evaluation of wooden particles of palisander (Jacaranda Mimosifolia) and oak (Quercus robur L.). The samples were taken from the operation of the production furniture, in which dust is formed during the technology. Measurement was carried out by laser analyzer. Measurements were carried out on samples in specific time interval. Values, which were acquired, were evaluated of characteristics of the Weibull Distribution and treated in statistical program. It has been found by means of measurement and evaluation that sample of palisander (Jacaranda Mimosifolia) has finer grain than sample of oak (Quercus robur L.), therefore the has greater assumption to the creation of fire and explosions in process at the wood processing. We note in comparison with other sizes of wood particles, that the percentages are comparable.