港口煤炭专用码头装卸过程中,如无防尘措施,煤尘则会满天飞扬。据测定某码头,在场地空气中粉尘浓度高于50毫克/米3,变电所和控制室内为5-10毫克/W3,船仓口内高达150-200毫克/米3,都大大超过国家规定标准。这些粉尘不只威胁工人的健康,影响附近居民的生活,并且会使控制仪器失灵, Port coal terminal loading and unloading process, if no dust-proof measures, coal dust will be filled with flying. According to the determination of a terminal, the concentration of dust in the air at the site is higher than 50 mg / m3, substation and control room is 5-10 mg / W3, and the silo port is as high as 150-200 mg / m3, which greatly exceeds the national regulations standard. These dust not only threaten the health of workers, affect the lives of nearby residents, but also cause the control equipment to malfunction,