Zhengzhou Hongke Machinery CO., Ltd

Raymond Grinder/Raymond mill is applicable to the grinding and processing of more than 280 kinds of non-flammable and non-explosive materials with hardness less than 7 and humidity less than 6% in mining, construction, chemical, industry and metallurgy, such as barite, calcite, feldspar, talcum, pencil stone, marble, coke, powdered-coal, dolomite, fluorite, active carbon, betonies, ceramic、iron ore, granite, iron oxide yellow, gold mine, porcelain clay, plaster, limestone, clay, glass. The fine mess of the finished product can be adjusted from 60 mesh to 425 mesh according to requirement, and the most finest final products will reach 1000 mesh. Working principle The whole machine is collocated with jaw crusher, elevator, hopper, electromagnetic vibrating feeder, main unit, classifier, collector, cloth detester and high-pressure blower. The working principle is as follows: load the stuff for grinding evenly and continuously into the grinding chamber of the main frame. Due to the centrifugal force in rotation, the roller swings go outward and presses closely upon the ring. The shovel carries the stuff to the space between the roller and ring. When the roller rolls, the stuff is thus grinded. After being grinded, the stuff is to be routed to the classifier along wind belt of the blower and the rough powder will be put back to the grinder for regrinding. The fine powder flows into the cyclone collector together with air flow and is expelled from the powder output pipe as product. In the grinding chamber, since the stuff contains moisture to some extent, the heat generated during grinding makes the moisture evaporate; since the pipeline joints are not airtight, the external air is sucked in and the circulation air mass increases. In order to enable the grinder to work in negative pressure, the increased air flow is guided to the duster and sequentially to the atmosphere after purification.