Abstract
The temperature of liquid blast furnace slag discharged from ironmaking blast furnaces is above 1400°C, which contains extremely abundant waste heat resources. The discharged blast furnace slag is rapidly reduced in temperature due to lack of timely insulation, which limits the development of continuous recovery technology for residual heat of blast furnace slag such as dry granulation. In view of this technical bottleneck problem, the liquid slag storage device designed with reference to liquid metal slag devices (such as ladle and tundish) in the metallurgical industry could be used for the storage and temperature control of liquid blast furnace slag. Compared with ladle, tundish and other liquid metal storage devices, slag packs had the characteristics of large capacity, complex structure and complicated flow process. The VOF model was used to simulate the influence of the inner diameter of the outlet on the slag discharge flow, speed, and temperature in the process of free liquid slag storage device outflow and the effect of different slag flow rates on the outflow temperature in the process of quantitative outflow process. The research results had important guiding significance for structural design and material selection of cache devices.
| Original language | English |
|---|---|
| Pages (from-to) | 4735-4740 |
| Number of pages | 6 |
| Journal | Energy Procedia |
| Volume | 158 |
| DOIs | |
| State | Published - 2019 |
| Event | 10th International Conference on Applied Energy, ICAE 2018 - Hong Kong, China Duration: 22 Aug 2018 → 25 Aug 2018 |
Keywords
- Liquid slag storage
- Slag centrifugal granulation
- Slag discharge temperature
- Slag flow
- VOF model
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