The monitoring instruments were installed at one of the largest open-pit coal mines in China, i.e., Haerwusu Open-pit Coal Mine (HOCM), located in the cold northwest region (111° 13′ 18″ ~ 111° 15′ 20″ E, 39° 43′ 34″ ~ 39° 45′ 02″ N). Fig. 1 shows the specific location and measuring point layout of the mining area.
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Downloadable! Dust pollution in open-pit coal mines severely restricts the green development of mines. Therefore, dust control has become an important requirement for the sustainable development of the mining industry. With the goal of dust pollution prevention and control in open-pit coal mines, this paper puts forward the concept of a …
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The purpose is to provide scientific and effective dust control measures, control the dust source from the root, and formulate practical control measures. Based on the effect of water and sediment reduction, the dust arising mechanism and dust reduction technology of open-pit coal mine are studied. Based on the dust arising mechanism, the QS spray …
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Dust pollution in open-pit coal mines severely restricts the green development of mines. Therefore, dust control has become an important requirement for the sustainable development of the mining …
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During the open pit coal mining process, coal-bearing debris and the fragmented coal from the un-recovered TCS are poured into the waste-dump inside or outside the mining pits. ... Ting C (2009) Research on coal dust starting and dust control in open-air coal storage yard. Shanxi University, pp 27–28. Wang Q (2009) Study on the …
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Traditional dust monitoring techniques for open-pit mines are labor-intensive and resource-demanding, and the dust concentration in these environments is …
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The sensitivity analysis is done by study each influencing factor. This paper offers an effective way to study the flow field characteristics in an open-pit coal mine, which is essential to the dust …
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Based on the dust concentration data and meteorological environment data monitored at the open-pit mine site, the characteristics of dust concentration and the influence of temperature, humidity ...
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Based on feedback from the results of spot monitoring, to simulate the real situation of open-pit coal mines, the experiment used coal dust and soil from the mines as dust materials. During the experiments, 20 g of coal-soil mixed dust was used, in which different mass ratios of coal dust content (0%, 25%, 50%, 75%, and ) were set to ...
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] analyzed dust distribution in a Chinese open-pit coal mine and found that PM concentration is nearly the same throughout the mine, but its concentration is very high around the equipment working ...
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Present situation and development direction of coal mine dust control in China [J]. Metal mine, 2009 (S1), pp. 747-752. [6] Xian-kun Yu, Hong Yang. Investigation and discussion on the present situation of occupational hazards [J]. Modern mining, 2016 (5), pp. 173-175. [7] Zhen-yu ZHANG. Dust pollution in open pit mining and its control …
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Published: 20 October 2023. Volume 30, pages 114591–114609, ( 2023 ) Cite this article. Download PDF. Zhiming Wang, Wei Zhou, Izhar Mithal Jiskani, Yukun Yang, Junlong …
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In order to control dust pollution in the entire open-pit coal mine, it should start with the transportation road of the open-pit coal mine. The main influencing factors …
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In this study, a solar-powered multipoint network monitoring method was used to record dust-particle concentrations and meteorological indicators in the Anjialing open-pit coal mine in the Pingshuo mining area. The factors influencing the concentrations of particulate matter of different maximum diameters (PM2.5, PM10, and …
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It was found that dust formation at open-pit coal mines mainly depends on the degree of coal metamorphism. It was also found that coals with a higher degree of metamorphism produce more fine dust.
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Sustainability | Free Full-Text | Research on the Physical and Chemical Characteristics of Dust in Open Pit Coal Mine Crushing Stations and Closed Dust …
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2. Materials and Methods. The research framework of this paper is shown in Figure 1.Firstly, the dust characteristics of the open-pit coal mine operation link were analyzed, the open-pit mine was divided into disturbance areas and non-disturbance areas according to the dust characteristics, and the dust particle size distribution in different areas was given …
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Operation of mobile equipment on unpaved roads is a major source of fugitive dust in open-pit iron mines . On the other hand, the particle travels from workplaces at an open-pit iron mine and it was concluded that even in the shallow pits during non-operational hours, workers are exposed to higher concentrations of PM . …
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In order to solve the serious dust pollution problem in mining and loading process of burnt rock open-pit coal mines, a dust suppression technology was proposed to investigate the compound dust suppressant with four functions of wetting, coagulation, moisture absorption, and moisture retention, and improve the hydrophilicity and dust suppression …
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Therefore, dust control has become an important requirement for the sustainable development of the mining industry. With the goal of dust pollution prevention and control in open-pit coal mines ...
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Dust pollution in open-pit coal mines severely restricts the green development of mines. Therefore, dust control has become an important requirement for the sustainable development of the mining industry. With the goal of dust pollution prevention and control in open-pit coal mines, this paper puts forward the concept of a …
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The particulate pollution in the open-pit coal mines of China is particularly severe in winter. The aim of this study is to understand the pollution characteristics of particulate matter (PM) in winter and provide a …
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According to the investigation, the average dust concentration in the open-pit coal mines of township enterprises in 10 counties in 7 provinces of China is 5 ~ 43 times of the standard, of...
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Spraying water is commonly used for dust suppression in open-pit mines (Peng et al. 2019).A more economical approach is to spray a mixture of a suitable dust suppressant and water (Wang et al. 2019).But some open-pit mines in environmentally vulnerable areas of Northwest China are extremely short of water (Zhou et al. 2016; Hu …
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2 - Utilising fog cannons for visible dust. Fog cannons are now a popular dust control measure in open-pit mines due to their versatility and innovative technology. They are ideal for use in scenarios where visible dust, rather than respirable sized dust, is a major problem. These cannons use highly pressurised water which is pumped through a ...
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Qingxiang [40] analyzed dust distribution in a Chinese open-pit coal mine and found that PM concentration is nearly the same throughout the mine, but its concentration is very high around the equipment working area, i.e., 426 g/m3. Quite recently, Li, et al. [36] monitored dust in the Pingshuo mining area, China, to reveal concentration change ...
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To further promote dust control efforts in Chinese open-pit coal mines, this study focuses on the research of coal dust and rock dust produced by different explosions in the Haerwusu open-pit coal mine in China. By investigating the relationship between the physical and chemical characteristics of dust particles from explosions in …
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In an effort to control dust pollution in open-air environments such as pit coal mines and coal transportation systems, a new dust suppressant with a cross-linkednetwork structure was prepared. Graft copolymerization of soy protein isolate (SPI) and methacrylic acid (MAA), using potassium persulfate (KPS) as the initiator and hexametaphosphoric ...
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4 Haerwusu Open Pit Coal Mine, China Shenhua Energy Co., Ltd., Ordos 017100, China * Correspondence: [email protected] (Z.W.); [email protected] (X.L.) Abstract: To further promote dust control efforts in Chinese open-pit coal mines, this study focuses on the research of coal dust and rock dust produced by different …
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Dust pollution is one of the most severe environmental issues in open pit mines, hindering green mining development. Open pit mine dust has characteristics of multiple...
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Dust pollution is one of the most severe environmental issues in open pit mines, hindering green mining development. Open pit mine dust has characteristics of multiple dust-generating points, is ...
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other factors (Lee, 1990). In open-pit coal mining, dust produced during coal extraction is a ubiquitous health concern, but other related pro-cesses can also produce dust. So, in open-pit coal ...
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Mine dust pollution poses a hindrance to achieving green and climate-smart mining. This paper uses weather forecast data and mine production intensity data as model inputs to develop a novel model for forecasting daily dust concentration values in open pit mines by employing and integrating multiple machine learning techniques. The …
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This model can be applied to the prediction of dust concentrations in open-pit mines and provide guidance on when to carry out dust-suppression work. It has …
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Open-pit coal mining, a commonly employed method for extracting coal resources, not only plays a crucial role in the development of the coal industry but also leads to significant dust pollution challenges (Wang et al., 2022a, 2022b). The mine dust pollution poses a threat to human health, contaminates the surrounding environment, …
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