Evaluation of the Degree of the Leak-Through of Fine Dust in a Wet Cleaning Abatement Decreasing Dust Systems of Aspiration Schemes in the Building Construction Industry

摘要

. The article is devoted to the improvement of environmental safety while reducing emissions of dust exhausting by decreasing dusting schemes of aspiration into atmosphere within the construction industry. The use of high-effective dust capturing devices, reducing leakage degree of dust particles thrown out from aspiration cutting dust schemes is one of the most promising and effective ways to decrease dust emissions at the cement producing enterprises. The article shows some summary results of the field power determination for dust emission, dust of sand and expanded clay, leak out of equipment, workplaces and aspiration schemes of expanded clay and cement manufacturing enterprises. The results of the analysis of dust particles with various dimensions and the experimental determination of the degree of dust separating apparatuses' leaking out was used for design and development of the new wet dust cleaner-separator. The experiments were carried out to get the leakage's degree of dust particles thrown out from this new wet cleaner' modification at the industrial plants. The statistical treatment of the experimental results allowed us to get dependence of the leakage of dust's particles in these wet dust cleaners-separators within the studied aerodynamic range of work regime. The results showed that the proposed wet scrubbing dust cleaners provide a significant reduction of dust emissions (expanded clay and sand) into the atmosphere from expanded clay and cement manufacturing enterprises. It is recommended to use the results of the development of dust wet cleaning devices in decreasing of dust aspiration schemes in the building construction industry.