Haul truck transportation is a key production system in opencast coal mine. With the increasing requirements for green,low-carbon, clean and environmental protection, energy conversion and haul truck power, as one of the main sources of atmospheric pollutants and greenhouse gas emissions from opencast coal mine, have become research hotspots. In order to research the comprehensiveemission of energy and power scheme of haul truck, a certain open-pit coal mine and its transportation system were taken as the researchobject.Three technical schemes based on coal-hydrogen synergy and another comparison plan of traditional technology routes were designedfor the two subsystems of energy conversion and haul truck power.The research scope and boundary conditions were determined, and theresearch models and data lists were established.Quantitative analysis and comparative study were conducted on the atmospheric pollutantsand greenhouse gas emissions during the fuel cycle of transporting 1 m3·km of earthwork or coal over a period of 10 a. The result showsthat Scheme 2 uses green hydrogen power to achieve the best comprehensive emission performance. Schemes 1 and 3 can transfer emissionsfrom haul truck power to energy conversion, which is conducive to adopting centralized and effective measures for emission reduction. Theemission reduction focus of Scheme 1 is on desulfurization and dust removal, while the emission reduction focus of Scheme 3 and Scheme 4is on CO2 capture, storage, and utilization. Scheme 4 has a large emission of atmospheric pollutants including CO and HC+NOx from thediesel power system of the haul truck, making emission reduction technology difficult. It is necessary to research on a new clean and efficient power system of the haul truck.
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