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Abstract
The article considers the granulometric analysis of selected samples of tropical wood dust from cumaru (Dipteryx odorata), padauk (Pterocarpus soyauxii), ebony (Diospyros crassiflora), and marblewood (Marmaroxylon racemosum) using a Makita 9556CR 1400 W grinder and K36 sandpaper, for the purpose of selecting the percentages of the various fractions (<63; 63; 71; 200; 315; 500 μm) of wood dust samples. Tropical wood dust samples were made using a hand orbital sander Makita 9556CR 1400 W, and sized using the automatic mesh vibratory sieve machine Retsch AS 200 control. Most dust particles (between 50–79%) from all wood samples were under 100 μm in size. This higher percentage is associated with the risk of inhaling the dust, causing damage to the respiratory system, and the risk of a dust-air explosive mixture. Results of granulometric fractions contribution of tropical woods sanding dust were similar. Ignition temperature was changed by particle sizes, and decreased with a decrease in particle sizes. We found that marblewood has the highest minimum ignition temperature (400–420 °C), and padauk has the lowest (370–390 °C).
Highlights
During wood processing, dust is created as a by-product [1,2,3,4,5,6,7], and plays a negative role in assessing the risk of fire [8] or explosion [9,10,11,12,13,14]
We have focused on microfractions of tropical wood dust, and focused the minimum particle size (
The size, shape, and form of wood dust particles were studied by microscopic analysis, through a wide-field microscopy system (Nikon Eclipse Ni (Nikon Corp., Tokyo, Japan)) with a Nikon DS-Fi2 camera (Nikon Instruments Inc., Melville, NY, USA) [45]
Summary
Dust is created as a by-product [1,2,3,4,5,6,7], and plays a negative role in assessing the risk of fire [8] or explosion [9,10,11,12,13,14]. The damaging effect of wood dust is determined according to the particle size. Dust is formed that contain particles of various sizes [5]. A granulometric analysis determines the degree of crushing of the base material—which is one of the characteristic abilities of form airborne dust mixture [8]
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