|
| Study on Flow Gas and Dust Adhesion of Waste Heat Boiler in Ultra-large Side Blow Melting Bath |
|
Received:March 24, 2024
Revised:March 30, 2024
Accepted:April 01, 2024
Published Online:July 09, 2024
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2024.08.002 |
| KeyWord:oxygen-rich side-blown; waste heat boiler; flow field; dust setting; baffle corrosion; numerical simulation |
| Author | Institution |
| LI Dongbo |
云铜西南铜 |
| HU Jie |
昆明理工大学 冶金与能源工程学院 |
| ZOU Guiyang |
云铜西南铜 |
| YANG Shiliang |
昆明理工大学 冶金与能源工程学院 |
| YANG Gui |
云铜西南铜 |
| ZHANG Ming |
云铜西南铜 |
| HU jianhang |
昆明理工大学 冶金与能源工程学院 |
|
| Hits: 1500 |
| Download times: 1497 |
| Abstract: |
| Oxygen-rich side-blown bath smelting technology is widely used in the extraction of non-ferrous metals such as copper, lead, and zinc. The waste heat boiler after the smelter plays an important role in waste heat recovery and utilization, as well as settling of dust. However, in the actual production process, the chaotic flow field of flue gas inside the furnace, the easy adhesion and accumulation of dust, and severe wear of furnace walls and components have led the reduction of waste heat recovery efficiency, low load operation, and even forced shutdown. In order to solve these problems, a multiphase particle-in-cell method was used to numerically simulate the flue gas flow characteristics, dust deposition and adhesion in a ultra-large oxygen-rich side-blown melting bath smelter with annual processing cability of 1.5 million tons of concentrate. The results indicate that the vortex of flue gas inside the furnace can cause flue gas and dust to reflux into the inlet region. The baffle moving forward can lead to increased impact and blockage of the baffle. Increasing the spacing between baffles can effectively reduce the blockage of baffles. Increasing the radiation chamber space can significantly reduce the impact of the baffle. |
| Close |
|
|
|