| Issue |
E3S Web Conf.
Volume 618, 2025
6th International Symposium on Architecture Research Frontiers and Ecological Environment (ARFEE 2024)
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 5 | |
| Section | Analysis of Construction Engineering and Material Characteristics | |
| DOI | https://doi.org/10.1051/e3sconf/202561802002 | |
| Published online | 27 February 2025 | |
Study on influence factors of mixing uniformity for dredged spoil utilized as a resource by PFM with static mixer
1 CCCC Fourth Harbor Engineering Co., Ltd., 510290 Guangzhou, China
2 CCCC Fourth Harbor Engineering Institute Co., Ltd., 510230 Guangzhou, China
3 Key Laboratory of Environment and Safety Technology of Transportation Infrastructure Engineering, CCCC, 510230 Guangzhou, China
* Corresponding author: hujunlong1@ccccltd.cn
The static mixer is a non-moving structure used for mixing fluid medium in the pipeline, and structural parameters are important factors affecting the mixing effect. Due to the unclear influence of structural parameters on mixing uniformity for dredged mud and curing agent mixed by static mixers, the motion mode of fluid medium and the influence of unit number and deflection angle between adjacent units on the mixing uniformity are studied by multiphase flow simulation. The results show that the fluid in the cross-plate panel static mixer exhibits an alternating spiral forward motion mode, and the coefficient of uniformity of dredged mud and curing agent can be reduced by 26% - 98% after mixing. Under the conditions that the deflection angle is less than or equal to 60°, the mixing uniformity of the cross-plate panel static mixer with 2 pieces is better than that with 4 pieces. The mixing uniformity increases with the increase of the number of units. There is an optimal deflection angle between adjacent units, and too small or too large deflection angle will lead to the decrease of mixing uniformity. The study will help to optimize the structure of the existing pneumatic flow mixing device and improve the mixing effect.
© The Authors, published by EDP Sciences, 2025
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