The Dust Separation Efficiency of Filter Bags Used in the Wood-Based Panels Furniture Factory

Abstract

The relationship between the conditions of the use of filter bags made of non-woven fabric and the separation efficiency of wood dust generated in a furniture factory was experimentally determined in the conditions of pulse-jet filtration using a pilot-scale baghouse as waste during the processing of wood composites. The experiments were carried out, and we describe the results of the experiment as consisting in assembling one type of filter bag in two dust extraction installations operating under different operating conditions in the same furniture factory. The filter bags working in the assumed time intervals were then tested for their separation efficiency using a stand for testing filtration processes on a pilot scale. The test results are presented in the form of graphs and tables describing both the characteristics of the dust extraction installations and the filter fabric used, as well as the separation efficiency of bags used at different times in different industrial operating conditions for each of them. The conducted research allowed us to recognize the phenomenon of filtration in relation to a very important value, which is the separating efficiency of dust extraction in various operating conditions of dust extraction installations in a furniture factory during the long-term use of filter fabrics. The obtained results allowed us to determine the separation efficiency for the tested bags at a level of over 99.99% and to state that this separation efficiency increased with the working time of the bag. The structure of the outlet dust from filters in the wood composites processing factory constitutes an element of the working environment if the purified air is returned in a recirculation circuit to the interior of the working area. Thanks to this, it is possible to predict the separation efficiency in the long-term use of filter dust collectors for wood dust in furniture factories.

Application of Wood Composites III

“…In particular, the presence of wood dust is hazardous to the health of workers, necessitating a suitable filtration system [43,44]. Dembiski et al [45] investigated the resistance of filter bags to the flow of air within a dust collector. The edge-banding production line for wood-based furniture panels incorporated the use of a dust collector as one of its components, and, the airflow rate and the pressure drop were measured at various stages.…”

Advanced Eco-Friendly Wood-Based Composites

“…Exposure to wood dust is one of the greatest occupational hazards to the health and safety of workers in wood-processing and furniture enterprises [ 43 , 44 , 45 , 46 ]. The results of the study carried out by Dembiński et al will be of great benefit for the industrial practice of furniture factories in terms of methods for predicting the separation efficiency in the long-term use of filter bags employed in the wood-based panel industry [ 47 ].…”