The Granularity of Dust Particles when Sanding Wood and Wood-Based Materials

Očkajová, Alena; Stebila, Ján; Rybakowski, Marek; Rogoziński, Tomasz; Krišťák, Ľuboš; Luptáková, Jana

doi:10.4028/www.scientific.net/amr.1001.432

Cited by 19 publications

(17 citation statements)

References 7 publications

(6 reference statements)

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“…Wood sawing and sand abrading operations, besides forming the main products also generate sawdust and wood dust; the shape, dimension, and amount dust produced is dependent on both the physical and chemical characteristics of the sawed and abraded wood as well as on shape, dimension, sharpness of cutting tools, and the technological conditions of sawing and sand abrading operations (Heisel and Weiss 1995; Očkajová and Banski 2013; Očkajová et al 2014;). These by-products (sawdust and wood dust) can have adverse effects on human health when they are not sufficiently trapped by exhausting and filtration equipment.…”

Section: Resultsmentioning

confidence: 99%

“…Since oak-wood and beech-wood dusts were included on the list of health-endangering substances, producers as well as users have made great efforts to minimize it. The result has been the maintenance of wood-dust exhausting regimens conducted by stationary wood-processing devices with the aim of reaching the prescribed permissible maximum total dust concentration of 2 mg/m 3 (Očkajová et al 2014). However, within hand-made production lines, this threshold value is often highly exceeded.…”

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Creation of Wood Dust during Wood Processing: Size Analysis, Dust Separation, and Occupational Health

et al. 2015

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Mechanical separators and fabric filters are being used to remove airborne fine particles generated during the processing and handling of wood. Such particles might have a harmful effect on employee health, not only in smallbut also in large-scale wood processing facilities. The amount of wood dust and its dispersion conditions vary according to geometric boundary conditions. Thus, the dispersion conditions could be changed by changing the linear size of the particles. Moreover, the smaller the particles are, the more harmful they can be. It is necessary to become familiar with properties, from a health point of view, of wood dust generated from processing. Wood dust has to be sucked away from the processing area. The fractional separation efficiency of wood dust can be improved using exhaust and filtering devices. Filtration efficiency depends on moisture content, particle size, and device performance. Because of the carcinogenicity of wood dust, the concentration of wood dust in air has to be monitored regularly. Based on the results hereof, a conclusion can be made that both mechanical separators of types SEA and SEB as well as the fabric filters with FINET PES 1 textile are suitable for the separation of wet saw dust from all types of wooden waste produced within the process.

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Section: Resultsmentioning

confidence: 99%

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Creation of Wood Dust during Wood Processing: Size Analysis, Dust Separation, and Occupational Health

et al. 2015

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“…Aside from these basic features, the sanding performance is also affected by the sanded material type (various wood species and materials), sanding direction (which influences the resulting chip shape with rounded edges or very articulate chips forming clusters (Očkajová et al 2010)), and the sanding pressure and speed. Varying these factors for specific sanding tasks should result in a higher quality of the resulting product, lower electricity consumption, and the maximum possible durability and lifetime of the sanding belt (Očkajová et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Sanding Belts for Beech and Oak Sanding

Očkajová¹,

Kučerka²,

Krišťák³

et al. 2016

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The effects of wear on the performance of sanding belts were determined for European beech (Fagus sylvatica L.) and English oak (Quercus robur). These measurements are presented as a function of the defined sanding time of 480 min on a manual sanding belt machine. Sanding belt pressure on the piece surface (6600, 10400, 14700, and 18600 Pa), sanding direction (cutting speed vector with reference to wood fibers equal to 0°, 60° and 90°), wood hydrothermal treatment, and sanding belts from various manufacturers were the variables. The sanding belt wear was monitored by means of specific wood removal rate (g/cm 2 .min) in 20-min intervals by the means of reference samples with size of 50 x 50 x 50 mm, which were sanded for 1 min. The resulting curves for the sanding belts, as well as the statistical models of the wood removal rate, decreased as a function of the sanding time, described by the function y = a + b.e -ct . This work also describes the impact of wood species, optimum pressure, and grinding time on the characteristics to abrasion.

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“…Therefore, it is not possible to determine the exact position of juvenile wood on the log's cross-section (Očkajová et al 2014). The highest percentage of juvenile wood in trees can be found up to approximately the twentieth annual ring.…”

Section: Introductionmentioning

confidence: 99%

Influence of Processing Factors and Species of Wood on Granulometric Composition of Juvenile Poplar Wood Chips

Jamberová¹,

Vanco²,

Barcík³

et al. 2016

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This article deals with the assessment of the influence of technical, processing, and material factors on selected mechanical properties and the granulometric composition of juvenile poplar wood chips. Individual analyses were made for two poplar species: naturally grown Populus tremula L. and the cultivated poplar clone Populus x euramericana "Serotina" for both juvenile and more mature wood. The main goal of this study was to evaluate the influence of the selected technical and processing parameters and of wood type (juvenile and more mature) on the chips' granulometric composition during plane milling, its granulometric composition, and the sizes of the greatest and the smallest particles. Granulometric analysis (size test) was carried out to determine the share of the grain sizes for the individual wood fractions. While evaluating the granulometry, the influence of the milling process conditions as well as that of the wood's physical and mechanical properties was taken into account.

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The Granularity of Dust Particles when Sanding Wood and Wood-Based Materials

Cited by 19 publications

References 7 publications

Creation of Wood Dust during Wood Processing: Size Analysis, Dust Separation, and Occupational Health

Creation of Wood Dust during Wood Processing: Size Analysis, Dust Separation, and Occupational Health

Efficiency of Sanding Belts for Beech and Oak Sanding

Influence of Processing Factors and Species of Wood on Granulometric Composition of Juvenile Poplar Wood Chips

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