Brief Summary About Screening Machinery In Mining World

Generally speaking, in addition to the mechanical method

, screening also includes the method of fluid particles grading. Mechanical screening is most used for screening incompact materials with a particles size between 100 ~ 0.05mm. The screening efficiency of materials with a particle size below that range is very low due to its condensation bond, so materials with a particle size between 50 ~ 5nm have to use barrel classification and air classifier base on fluid mechanics. The classifier screen materials by the different velocity of the particles in the sob medium (water or air) to classify the materials into different grain section. The screening of gravel is classified into two kinds: dry and wet. It is generally required to screen the materials into two or more grades in industry, which need the sifter with a plurality of screen (mesh of different), arranged for processing and the arrangement has three kinds:screw classifier:http://www.hx-crushers.com/p60.html 1) Fine screen surface are arranged in the same plane with the coarse screen surface, the order is from fine to coarse. The advantages are convenient operation and convenient to replace the screen surface, the screening material of all levels unloading from different ports, it is convenient to transport. Drawback is that coarse particles need go through fine sieve surface, which is easy to wear fine screen surface and often jam album hole. 2) Fine screen surface is vertical with the coarse screen surface, the course at the upper and the fine at the underneath, which has the advantages of small occupation area, fine sieve surface will not be worn by coarse grain and is beneficial to improve the screening quality. However, it is more difficult to repair and maintenance. 3) Mixing vibrating screen, which is the mixing of the above two alignment. Thus, it has the advantages of the both arrangement.Henan Hongxing Mining Machinery Co., Ltd is a joint-stock mining machinery manufacturing enterprise integrated in scientific research, production and marketing. It is located at the High & New Technology Industries Development Zone of Zhengzhou,China with an area of 50 thousand m2 which includes 15,000 m2 of standard heavy duty industrial workshop. Equipments are more than 160 pieces, including large and medium sized metal processing, riveting and installing equipments. There are more than 660 workers including 80 administrators with secondary and senior occupational titles and engineering technicians. In order to promote the competitive strength, the advanced technologies have been introduced from America, Germany, Japan and Australia, which established the international advanced production line, first-class modern testing base as well as research centers of sand maker, mill and mine-selecting equipment. Scientific management, advanced processing technology and innovative manufacturing theory make the company become the mining machinery manufacturing and exporting base in China.

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