Airborn risk assessment in operation of combustion engine-powered haulage machines: Basic guidelines

Self-propelled loading and delivery vehicles (PDM) and other vehicles with internal combustion engines (ICE) are widely used in coal mines in Russia. PDMS have a number of advantages, which include: large bucket capacity, small width and height of machines, the ability to perform several basic and auxiliary operations, the ability to service several faces, etc. The main disadvantages of PDM include the release of exhaust gases containing toxic and carcinogenic substances into the mine atmosphere. The operation of the internal combustion engine is influenced by the state of the mine atmosphere. Aerological risks during the operation of the PDM are associated with an excess of the content of harmful and toxic components in the exhaust (exhaust) gases compared to the calculated value obtained in the project documentation. The purpose of the study is to develop the basics of the methodology for taking into account the aerological risks during the operation of transport vehicles with internal combustion engines, which appear when exhaust (exhaust) gases from diesel-powered transport vehicles (ICE) are released into the mine atmosphere. The influence of reliability on aerological risks and the method of calculating the concentration of individual toxic components of exhaust gases and their aggregates (mixtures), expressed in CO-equivalent, are shown. The aerological risk is affected by the indicators of technical risk, depending on the technical quality of the machine design: on their quality, laid down in the design, and technological deviations from the design documentation during their manufacture. The aerological risk is also affected by operational risks associated with the deviation of the operating and maintenance modes of machines in mines dangerous for dust and gas.

Chmykhalova S. V. Airborn risk assessment in operation of combustion enginepowered haulage machines: Basic guidelines . MIAB. Mining Inf. Anal. Bull. 2021;(10-1):74—87. [In Russ]. DOI: 10.25018/0236_1493_2021_101_0_74.

Chmykhalova S. V., Cand. Sci (Eng.), Assosiate Professor, tchmy@mail.ru, National university of science and technology «MISIS», Moscow, Russia.

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