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Analysis of minimum specific energy consumption and optimal transport concentration of slurry pipeline transport systems

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Particuology 2022年第7期20卷 38-47页

作者： Mingzhi Li Yanping He Ruhong Jiang Ji Zhang Hongsheng Zhang Weihuang Liu Yadong Liu State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China Institute of Marine Equipment Shanghai Jiao Tong UniversityShanghai 200240China CHEC Dredging Co. Ltd.Shanghai 200136China National Engineering Research Center of Dredging Shanghai 200120China

Slurry pipeline transport is widely used in several industrial *** the specific power consumption(SPC)and determining the best working conditions are important for the design and operation of transportation *** on the Shanghai Jiao Tong University high-concentration multi-sized slurry pressure drop(SJTU-HMSPD)pipeline-resistance-calculation model,the SJTU-SPC model for calculating the power required to transport a unit volume of solid materials over a unit pipeline length is established for a slurry transport *** said system demonstrates a uniformity coefficient in the 1.26–7.98 range,median particle size of 0.075–4 mm,particle volume concentration of 10–60%,and pipeline diameter of 0.203–0.8 *** results obtained were successfully verified against existing experimental *** influence of parameters,such as particle-gradation uniformity coefficient,median particle size,pipe diameter,and particle volume concentration,on the SPC were *** results revealed that the greater is the uniformity coefficient,the smaller is the minimum specific energy consumption and the larger the optimal transport concentration for a constant,median particle size *** observed,the optimal transport concentration for broad-graded sand equalled approximately 48%.These results supplement the conclusions of existing research,indicating that the optimal transport concentration is approximately 30%and provides theoretical support for high concentration transportation of broad graded slurry.

关键词： Slurry pipeline transport system specific power consumption Minimum specific energy consumption Optimal transport concentration

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