The mechanical superfine pulverization process generally refers to a pulverization and classification process for preparing a particle size distribution d97 ≤ 10 μm, which is divided into a dry process and a wet process. At present, the ultra-fine pulverizing unit operation (ie, one-stage ultra-fine pulverization) adopted in the industry has the following processes: 01 Open process Generally, the flat or disc type, the circulating tube type and the like have a self-grading function, and the open circuit process is often used. In addition, this process is often used for batch ultrafine pulverization. The advantage of this process is that the process is simple. However, for the ultrafine pulverizer which does not have the self-classifying function, since the classifier is not provided in this process, the qualified ultrafine powder product cannot be separated in time, and therefore, the general product has a wide particle size distribution range. 02 Closed circuit The process is a superfine pulverizing-fine grading closed circuit system composed of a classifier and an ultrafine pulverizer. This process is often used in continuous pulverizing operations such as ball mills , agitating mills, high-speed mechanical impact mills, and vibration mills. The advantage is that the qualified ultra-fine powder product can be separated in time, thereby reducing the agglomeration of the fine particles and improving the efficiency of the ultra-fine pulverization operation. 03 Open circuit with pre-grading The process is that the material is classified before entering the ultra-fine pulverizer, and the fine-grained material is directly used as the ultra-fine powder product. The coarse-grained material is then pulverized into an ultrafine pulverizer. When the feed contains more qualified fine-grained ultrafine powder, the process can reduce the load of the crusher, reduce the energy consumption of the unit ultrafine powder product, and improve the work efficiency. 04 Closed circuit with pre-grading This combined operation not only helps to improve the pulverization efficiency and reduce the energy consumption per unit of product, but also controls the particle size distribution of the product. This process can also be simplified to only one classifier, that is, the same classifier is used for pre-grading and checking the grading. 05 Open process with final grading The feature of this smashing process is that one or more classifiers can be installed after the pulverizer to obtain two or more products with different fineness and particle size distribution. 06 Open process with pre-grading and final grading This process can not only pre-separate part of the qualified fine-grain grade products to reduce the load of the pulverizer, but also the final grading equipment can obtain two or more products with different fineness and particle size distribution. In the pulverization method, the ultrafine pulverization process can be divided into three types: dry type (one or more stages) pulverization, wet type (one or more stages) pulverization, and dry-wet combined multi-stage pulverization. The number of pulverized sections depends mainly on the particle size of the raw material and the required product fineness. For raw materials with relatively coarse particle size, a process of finely pulverizing or finely grinding and then superfine pulverization may be employed. Generally, the raw materials may be pulverized to 74 μm or 43 μm and then subjected to a superfine pulverization process. For materials with fine grain size requirements and easy to agglomerate, multi-stage ultra-fine crushing process can be used to improve work efficiency. However, in general, the more the number of crushing stages, the more complicated the process, and the engineering investment. The bigger. We are manufacturer of Foaming Hand Soap Bottle in China, if you want to buy Glass Bottle Roller,Essential Oil Crystal Roller,Glass Roll On Bottle please contact us.Please Contact US if your product is broken★Superior Quality: The Essential oil roller bottles are made of corrosion-resistant glass which makes them thick, smooth, and shockproof. The oil roller bottles for essential oils protect the oil against harmful UV rays to save it from quick volatilization.The screw thread finish bottle mouth is matched with a plated aluminum alloy cap, which fits tightly and can effectively prevent any liquid leakage. You can also design your essential oil formulations with these essential oil roller bottles to would help you to relax during salon or aromatherapy. Foaming Hand Soap Bottle,Glass Bottle Roller,Essential Oil Crystal Roller,Glass Roll On Bottle NINGBO SUNWINJER DAILY PRODUCTS CO.,LTD , https://www.nblux-packing.com