微波场中钛精矿不同粒度吸波特性研究

Study on Microwave-Absorption Property of Titanium Concentrate at Different Particle Sizes in Microwave Field

采用谐振腔法测定了钛精矿不同粒度时吸波特性,研究了钛精矿不同粒度时与微波场内热源强度P的关系。攀枝花钛精矿和云南钛精矿最佳粒度为-80目+100目或者-180目+200目。在此粒度下,物料的介电常数ε达到最大值,其相应微波场内热源强度P为最高,并通过试验进一步确定微波场中钛精矿为-180目+200目,从而为微波在冶金领域中应用节约能耗提供理论依据。

Resonance method is used to measure the microwave adsorption property of titanium concentrate at various particle sizes and to study its relationship with the heat source strength P of the microwave field. The results show that the optimal particle size of Panzhihua＇s and Yunnan＇s concentrates is 80 - 100 mesh or 180 -200mesh, at which, the material dielectric coefficient e can reach the maximum value and the corresponding heat source strength P of the microwave field is also at its highest value. The optical particle size of the titanium concentrate in the microwave field is further determined through the test to be 180 -200 mesh. This has provided a theoretical basis for the application of microwave in the metallurgical field for the purpose of energy saving.