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利用数值模拟的方法研究了侧井式铝屑炉涡流室内的流场和铝屑的运动轨迹,分析了不同条件下涡流室对铝屑颗粒沉浮状况的影响规律。结果表明:将涡流室的入口调整为上倾15°后,涡流室内流场产生的漩涡明显变大、变深,并且铝屑的上浮率由原来的73%降低到59%,说明涡流室入口角度对铝屑的沉浮状况影响显著;在选取3个不同加料位置后发现,在文中位置2加料时铝屑的上浮率为63%,而在涡流室中央加料时铝屑上浮率为73%,相差达到10个百分点,说明不同的加料位置对铝屑颗粒沉浮状况的影响同样显著。
The flow field and the movement trajectory of aluminum flake in the side vortex chamber were studied by numerical simulation. The influence of vortex chamber on the sinking state of aluminum flake particles was analyzed under different conditions. The results show that the swirling vortex in the vortex chamber becomes larger and deeper when the inlet of vortex chamber is adjusted to be 15 ° upwards, and the float rate of the aluminum swarf decreases from 73% to 59%, indicating that the swirl chamber inlet From the perspective of three different feeding positions, it was found that the floating rate of aluminum dust was 63% at the feeding position 2 in the text, and the floating rate of aluminum scrap was 73% when the central feeding of the vortex chamber was carried out. A difference of up to 10 percentage points, indicating different feeding position on the status of aluminum particles floating the same significant impact.