Study of the Deposition Formation Mechanism in the Heat Exchanger System of RHF
Abstract
:1. Introduction
2. Experimental Procedure
3. Results and Discussion
3.1. Analysis Results of Deposition
3.2. Experimental Results and Discussion
3.3. Discussion on Formation Mechanism and Prevention of Deposition
4. Conclusions
- (1)
- The main cohered phase of the deposition was KCl. The other solid particles were fixed by KCl through the solid-liquid transition of KCl.
- (2)
- The secondary cohered phase of the deposition was ZnFe2O4, forming a porous structure, while the other solid particles were fixed in the porous structure.
- (3)
- The bond strength of ZnFe2O4 was better compared to KCl. Under the combined action of KCl and ZnFe2O4, the deposition could stably occur on the heat exchanger wall.
- (4)
- A new RHF process was proposed to avoid the generation of sediments and to maximize the use of waste from the metallurgical process.
Author Contributions
Funding
Conflicts of Interest
References
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Chemical Compositions % | CaO | SiO2 | Zn | Pb | K | C | TFe |
---|---|---|---|---|---|---|---|
Deposition | 1.62 | 1.08 | 36.5 | 8.4 | 11.57 | 0.66 | 12.84 |
Experiments | ZnO | PbO | Fe2O3 | KCl |
---|---|---|---|---|
1 | 84.38 | 15.62 | - | - |
2 | 62.89 | 11.63 | 25.48 | - |
3 | 63.94 | 11.83 | - | 24.22 |
4 | 50.81 | 9.4 | 20.53 | 19.26 |
5 | 50.31 | - | 49.46 | - |
6 | 80.78 | 14.22 | - | 5 |
7 | 76.43 | 13.57 | - | 10 |
8 | 72.29 | 12.71 | - | 15 |
9 | 67.86 | 12.14 | - | 20 |
10 | 80.78 | 14.22 | 5 | - |
11 | 76.43 | 13.57 | 10 | - |
12 | 72.29 | 12.71 | 15 | - |
13 | 67.86 | 12.14 | 20 | - |
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Pan, Y.; She, X.; Wang, J.; Liu, Y. Study of the Deposition Formation Mechanism in the Heat Exchanger System of RHF. Metals 2019, 9, 443. https://doi.org/10.3390/met9040443
Pan Y, She X, Wang J, Liu Y. Study of the Deposition Formation Mechanism in the Heat Exchanger System of RHF. Metals. 2019; 9(4):443. https://doi.org/10.3390/met9040443
Chicago/Turabian StylePan, Yuzhu, Xuefeng She, Jingsong Wang, and Yingli Liu. 2019. "Study of the Deposition Formation Mechanism in the Heat Exchanger System of RHF" Metals 9, no. 4: 443. https://doi.org/10.3390/met9040443