Abstract
With the increasing requirements of environmental protection, a large number of new wet dust suppression technologies are used in the port in recent years, such as watering at the bottom of the Dumper Shed, etc. So the moisture content of coal is more than 10% often appear. Relevant studies show that the amount of dust from coal (conventional moisture content) pile is directly proportional to the high power of wind speed. But studies on high moisture content coal are rare. In this study, Wind tunnel test was carried out to study the dust emission behavior of coal with high moisture content (13.7% and 14.3%). The results show that the relationship between coal dust and wind speed tends to be linear under high moisture content. The study can provide a basis research for the estimation of coal dust emission in port.
Highlights
The diffusion and migration of cargo dust in the atmospheric environment constitutes one of the main components of air particulate pollution in coastal cities [1~2]
The common conclusion of the existing researches the amount of dust from coal(conventional moisture content) pile is directly proportional to the high power of wind speed while the parameter value is different [6~8]
With the increasing requirements of environmental protection, especially from the environmental protection tax law of the People's Republic of China came into effect on January 1, 2018, the requirements for dust pollution control in ports are increasing, In order to reduce the environmental protection tax, many bulk ports have developed the technological transformation of environmental protection equipment
Summary
The diffusion and migration of cargo dust in the atmospheric environment constitutes one of the main components of air particulate pollution in coastal cities [1~2]. The static dust volume of bulk cargo yard is mainly related to wind speed and the physical characteristics of the material itself, such as moisture content [3~5]. The common conclusion of the existing researches the amount of dust from coal(conventional moisture content) pile is directly proportional to the high power of wind speed while the parameter value is different [6~8]. In order to reduce the static dust of coal in the bulk yard, some bulk ports adopt the technology of watering at the bottom of the Dumper Shed, watering from the cantilever of the stacker, etc. As for the dust emission characteristics of high moisture coal, there is rare relevant research. Wind tunnel tests were carried out to investigate the dust emission characteristics of high moisture coal piles. The study can provide a basis for the estimation of coal dust emission in port area
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