CAJ | 학술논문

采用CFX4.3对闪速炉沉淀池中的熔体流动和温度分布进行数值模拟研究.针对1个出渣口对应1个冰铜出口(1-to-1)与1个出渣口对应2个冰铜出口(1-to-2)这两种操作方案共设立16种计算工况.模拟结果表明,两种方案下熔体流动相似,但采用1 -to-2操作方案时,熔池中可见明显的回流.仿真中还发现,渣口与冰铜出口的不同组合方式对沉淀池中熔体温度分布的影响显著,其中在1 -to-2操作方案下,沉淀池中的熔体温度更均匀.在实际生产中,当采用远离沉淀池入口的放铜口进行操作时将更有利于实现沉淀池内熔体温度的均匀分布.
채용CFX4.3대섬속로침정지중적용체류동화온도분포진행수치모의연구.침대1개출사구대응1개빙동출구(1-to-1)여1개출사구대응2개빙동출구(1-to-2)저량충조작방안공설립16충계산공황.모의결과표명,량충방안하용체류동상사,단채용1 -to-2조작방안시,용지중가견명현적회류.방진중환발현,사구여빙동출구적불동조합방식대침정지중용체온도분포적영향현저,기중재1 -to-2조작방안하,침정지중적용체온도경균균.재실제생산중,당채용원리침정지입구적방동구진행조작시장경유리우실현침정지내용체온도적균균분포.
A computational fluid dynamics (CFD) simulation was carried out with CFX4.3 to investigate the melt flow and temperature distributions in the settler of a flash furnace.Sixteen cases of one slag tap hole adopted with one matte tap hole (1-to-1)and one slag tap hole adopted with two matte tap holes (1-to-2) operation modes were modelled.The simulation results show that the melt flows are similar in both two operation modes,but evident circulations can be found in the case of the 1-to-2 operation mode.The combination modes of the slag and matte tap holes are found to have a significant effect on the temperature distributions of the melt.The melt temperature is more umform in the case of the 1-to-2 mode.Selection of a matte tap hole farther away from the inlet is more conducive to achieve a uniform distribution of the melt temperature in the settler in practical tapping operation.