Raymond Roller Mill

Detailed Descriptions of Grinding Mill
Raymond mill is a new fine machine, better than ball mill, efficient and adopts the closed cycle. It used for ultra-fine powder processing of 280 materials, with the Moth's hardness of 9.3 below and humidity of 6% below, in the works of non-flammable mine, chemical industry and building materials, etc. The materials include barite, calcite, potash feldspar, pencil stone, marble, dolomite, fluorite, limestone, active carbon, bentonite, etc. The particle size of finished product can be adjusted from 0.613mm to 0.044mm, which can meet the different demands of customs.
Main features:
1. With vertical structure, as a dependent production system included crushing, conveying and packing, it can be placed in a small area.
2. Compared to the other mills, this one can reach to the 99% rate of through screen.
3, Main motor is adopted closed gearbox and belt pulley and with stable working and reliable performance
4. Most of parts are made of better materials which can ensure the durability and low power consumption.
5. The centralized control can make the warehouse work automatically with no workers aside, so it is much easier to maintain.
The main structure:
It is made up of main parts, analyzer, draught fan, product cyclone separator, micro powder cyclone separator and blast pipes; the main parts are composed of the supports, volute, reamer, grinder roll, grinder ring, cover piece.
Grinding Mill Operating principle: The whole machine is collocated with jaw crusher, elevator, hopper, electromagnetic vibrating feeder, main unit, classifier, collector, cloth deduster 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 deuster and sequentially to the atmosphere after purification.