Abstract:
Coal is mostly stored in coal bunkers. As the amount of coal in the bunker increases, the
concentration of coal dust inside the bunker also increases, making it susceptible to accidents such as
fires and explosions. Additionally, the leakage of coal dust particles can cause significant environmental
pollution in the surrounding area, leading to resource wastage. To improve energy efficiency,
reduce material transport dust concentration, and protect the surrounding environment, the efficient,
energy-saving, and environmentally friendly characteristics of pneumatic conveying systems are
utilized. This is achieved through the use of anti-dust telescopic pipeline equipment (DTPE), which
effectively prevents external dust particles from entering the telescopic pipeline, thus reducing mechanical
wear. In environments with high coal dust concentration, a coal particle pneumatic conveying
storage system based on DTPE is used to extend the service life of pneumatic conveying pipelines
and effectively reduce the coal dust concentration within the storage bin. This study reviews the
patents and research achievements of scholars in the field of pneumatic conveying and focuses on the
anti-dust telescopic pipeline equipment (DTPE) and the coal particle pneumatic conveying storage
system based on DTPE. Experiments using pneumatic conveying, screw conveyors, and belt conveyors
are conducted to compare conveying time and efficiency. Dust reduction experiments are
carried out in the coal bunker to verify the dust reduction effect of the coal particle pneumatic conveying
storage system based on DTPE. The anti-dust telescopic pipeline equipment (DTPE) features
a telescopic shell to protect the telescopic pipeline, effectively reducing mechanical wear caused by
coal particles entering the gaps in the pipeline during pneumatic conveying. The coal particle pneumatic
conveying storage system based on DTPE includes a cyclone dust removal system and a dynamic
monitoring system, which monitors the temperature inside the bin and reduces the coal dust
concentration, thereby minimizing the occurrence of safety accidents. Through experimental verification,
the coal particle pneumatic conveying storage system based on DTPE is found to be suitable
for environments with high coal dust concentrations. The anti-dust telescopic pipeline equipment
(DTPE) and the coal particle pneumatic conveying storage system based on DTPE achieve the automated
feeding, dust removal, return, and discharge of coal particles. They offer advantages such as
high system automation, minimal environmental pollution, and high coal transport rates, providing
design references for the pneumatic conveying of coal and other ore particle materials.