The economic and environmental assessment on production stage of quayside crane

With the acceleration of globalization, trade between countries has become more and more frequent; as a kind of commonly used heavy lifting equipment, the influence of the quayside crane on environment during the production stage has attracted wide attention. In this paper, the world's largest quayside crane manufacturer was selected as the study object. The environmental load of five workshops (NC pre-treatment workshop, assembling workshop, sand milling workshop, painting workshop and steel structure workshop) involved in the quayside crane (QC) production stage was studied by using the ReCiPe model; the normalized values of the 14 overall pollutants in each workshop were 1248.64, 576.75, 214.27, 85.26 and 76.69, respectively. The results showed that the sand milling workshop was the biggest electricity consumer of all processes. The sensitivity analysis revealed that the environmental pollution load was the most sensitive to the electricity consumption; the scenario analysis indicated that with the proportion of China's renewable resources in the process of electricity generation becoming larger and larger, in comparison with that of in 2015, up to 2050, the quantity of PM 2.5 generated during the production process of QC will drop from 832 to 408 kg (high-speed development)/342 kg (low-speed development), and it is expected that the China's haze problem could be effectively curbed in the future. Finally, the research results of this article also pointed out the direction for the future technical innovation of the QC industry.