摘要
为解决分级精度、分级效率与处理量、分级浓度之间的矛盾,开发研究出SLK高效高精度平面涡流分级机,其特点是引入了新型气动密封装置、异形叶片与预分散系统。在研发过程中,利用CFD软件进行几何参数与操作参数优化,模拟发现,在转速为500r/min时,气动密封对50μm颗粒的捕获率可达100%,而迷宫式密封几乎很难起到密封作用。同时,SLK的导流特性也明显优于O-sepa。通过样机SLK35的试验研究与SLK85在工程中的应用实例发现,对于高处理量与高分级浓度的情况,该机型也能达到90%左右的分级效率。
To solve the contradiction between classification accuracy, efficiency and throughput and feed concentration, SLK high efficiency, accuracy plane vortex classifier is developed. It is characterized by the introduction of new pneumatic-sealing device, special-shaped vane and pre-dispersion system. In the research and development process, CFD software was used to optimize the geometric parameters and operational parameters. It is found through the simulation that when the rotation speed is 500r/min, pneumatic sealing can have a 100% trap rate for 50um particles while the labyrinth seal can hardly play a role of sealing. Meanwhile, the flow-diversion capability of SLK model is obviously better than that of O- sepa. It is illustrated through the test research of SLK35 prototype and the engineering application of SLK 85 classifier that this model of classifiers can achieve a classification efficiency of about 90% at high throughput and high classification concentration.
出处
《金属矿山》
CAS
北大核心
2008年第3期121-126,共6页
Metal Mine
基金
四川省科学基金资助项目(编号:04JY029206021)
关键词
平面涡流分级机
分级
预分散
Plane vortex classifier, Classification, Pre-dispersion
