The ore beneficiation process can be divided into three stages: preparation before ore beneficiation, Portable Copper Ore Crusher plantore beneficiation and dehydration after ore beneficiation. Here Fote Heavy Machinery will discuss the preparation work of raw materials before the ore beneficiation process.
The preparation work of raw materials before ore beneficiation includes smashing (including crushing and grinding), screening and classification, and sometimes, it also includes ore washing.
Crushing refers to the process of crushing the ores of 500~1500mm quarried from the mines to the granularity of 5~25mm, and the crushing methods include squashing, breaking and splitting. Generally speaking, the crushing process can be divided into three stages: coarse crushing,Portable Gold Washing Plantmedium crushing and fine crushing.
Grinding is dominated by milling and impacting. This process can grind the crushed products to the size of 10~300μm. The grinding granularity is determined by the dip dyeing granularity of useful minerals in the ores and the adopted ore beneficiation method. The common ore grinding equipment includes rod grinding mill, Portable Crusher For Rentball mill grinder, autogeous mill and semi-autogeous mill. The energy consumption of grinding process is high and it usually accounts for about half of the total energy consumption of the ore beneficiation process.
3. Screening and classification
The process of screening materials to different sizes according to the size of the screen hole is called screening which is usually used for processing materials with coarse granularity. The process of classifying materials to different gradations according to the falling speed of particles in the medium (usually water) is called classification which is often used for materials with small granularity. Screening and classification are used for separating materials with the proper granularity or separate the materials into...