Simulation of the dust suppression process with foam in the areas of belt conveyors

Bespalov, Vadim; Gurova, Oksana; Samarskaya, Natalia; Lysova, Ekaterina

doi:10.1051/matecconf/201710603010

Cited by 5 publications

(6 citation statements)

References 16 publications

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“…It is known that the thickness of the foam bubbles films varies with time due to evaporation, the outflow of the solution from the film, the entrainment of the solution by the air stream, etc., and depends on the film deflection wavelength, surface tension and other factors, the bubble does not collapse before and during the interference fringes emergence and is destroyed after their disappearance, that is, with the film thickness up to 7,6•10 -7 m, and also up to 4•10 -7 m [17].…”

Section: Discussionmentioning

confidence: 99%

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The hydrodynamic dust retention modeling process with a foam layer for open linear dynamic technological systems at construction industry enterprises

et al. 2017

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The physical essence of the reducing air pollution hydrodynamic method by means of the foamy method as the most effective dust retention technology for open long sources at construction industry enterprises is presented in the article. The mathematical description of this technology has been performed, taking into account the physical and chemical properties of the dust and foam bubble, as well as the parameters of the return of dust particles to technological raw material due to various physical mechanisms for their capture. The obtained parametric dependence of dust retention efficiency provides the possibility of its predicted calculation as a resultant parameter for the considering technology, taking into account the interaction of dust with a foam layer.

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Section: Discussionmentioning

confidence: 99%

“…Capture of dust particles by foam under the action of electric forces [17,18] is characterized by the efficiency E ef(3)-dr .…”

Section: Discussionmentioning

confidence: 99%

The hydrodynamic dust retention modeling process with a foam layer for open linear dynamic technological systems at construction industry enterprises

et al. 2017

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“…In turn, they are divided into transport (motor transport, railway transport, river and sea transport, air transport), production (various technological processes), household (boiler houses, enterprises for the processing of household waste). In this group, transport sources occupy a leading position [7]. Moreover, in the general structure of transport sources, the maximum share of atmospheric emissions is accounted for by motor transport, which significantly exceeds the share of emissions from rail transport, represented mainly by diesel locomotives.…”

Section: Theory or Experimental Methodsmentioning

confidence: 99%

“…Such sources can be either single (separate) or group (multiple, located close to each other) and, as a rule, are unorganized (open storage facilities for various types of fuel, bulk materials, various types of waste, etc.) Based on the analysis of the work of many authors [6,7] and the results of our multiyear studies of the operation of various types of sources of pollutant emissions into the atmosphere [10], we also suggest the systematization of these sources according to the height of the spread of the emission plume, taking into account the height of the mouth of the source of pollutant emission substances above ground level. At the same time, we recommended subdividing all emission sources into:…”

Section: Theory or Experimental Methodsmentioning

confidence: 99%

Classification of air pollution criteria for the improvement of methodical approaches to ensure the environmental safety of major cities

et al. 2019

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The article is devoted to the problem of ensuring environmental safety in the territories of large cities, primarily, to reducing atmospheric air pollution. The aim of the work was to build a comprehensive classification scheme of sources of pollutant emissions into the air basin of the territories of large cities, taking into account the climatic and physicalgeographical conditions of the considered urban areas. In the process of research, we solved the problem of identifying the basic principles of classification of air pollution sources based on the analysis of known methodological approaches with the subsequent improvement of calculation methods to justify the spatial distribution of residential areas, industrial areas, motorways, recreational areas, effective sanitary protective zones taking into account aerodynamics to remove polluted air outside the city territory. A generalized classification of sources of pollutant emissions into the environment is proposed, while the sources of air pollution in urban areas are classified according to the following main criteria: by origin, by aerodynamic parameters and by the nature of the direction of the emission plume, by spatial position and possible mobility, in terms of size in plan, in height of the spread of the emission plume, taking into account the height of the mouth of the source of the emission of pollutants above the level of the earth’s surface, in temperature of air-gas mixture, according to the mode of action.

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“…At present, there are many technical solutions (methods, means and devices) providing a dynamic implementation of the purification process of exhaust and effluent gases from toxic components, the operation principle of which is based on various physical mechanisms. Their design is characterized by a different level of complexity, the operating conditions of which are also different [5,6]. However, in a number of real situations, several different variants of technical solutions can be applied, providing the same value of purifying efficiency.…”

Section: Introduction (Topicality)mentioning

confidence: 99%

Research of a hydrodynamic purifying device of exhaust and effluent gases from toxic components under dynamic conditions of their emissions into the atmosphere

et al. 2018

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The article describes the air purifying device of the “OTPO-9” type, which implements the technology of hydrodynamic purification with a foam method where foam was produced by bubbling. The article considers it as the most environmentally efficient and energy-saving device, based on the results of implementation of the methodology of technology selection for purifying exhaust and effluent gases from toxic components of industrial, public and domestic power units up to 1000 kW developed by the authors. The full-scale laboratory studies of the semi-industrial model of the developed device were carried out by the authors. These studies allowed us to define the nitrogen oxide and sulfur removal efficiency depending on the electric voltage, the shape of the device’s side wall in layout, the submersion of inlet and outlet pipe side holes, the ratio of the anode total area to the cathode one. Moreover, the authors have revealed the device scope of application and its advantages. The article states that the proposed device provides environmental safety of the implementation process in comparison with the use of chemical alkaline solutions, which are dangerous for human health and environment.

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Simulation of the dust suppression process with foam in the areas of belt conveyors

Cited by 5 publications

References 16 publications

The hydrodynamic dust retention modeling process with a foam layer for open linear dynamic technological systems at construction industry enterprises

The hydrodynamic dust retention modeling process with a foam layer for open linear dynamic technological systems at construction industry enterprises

Classification of air pollution criteria for the improvement of methodical approaches to ensure the environmental safety of major cities

Research of a hydrodynamic purifying device of exhaust and effluent gases from toxic components under dynamic conditions of their emissions into the atmosphere

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