SBM Raymond MillRaymond Mill

Raymond Mill Introduction

SBM 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, marble, limestone, clay, glass. The fineness of the finished product can be adjusted from 100 mesh to 325 mesh according to requirements.

Technical features of Raymond Mill

1. High-efficiency : the full use of the jet-flow and optimized impeller structure can greatly improve the crushing and grading efficiency ,thus greatly improving the production.
2. High grading degree:with the frequancy conversion and grading adjustment technology,the Raymond mill have stable and complete grading sysytem and the special sealing measure ,which can efficiently prevent the leaking of the fine particles .And the particle size can reach 500—6000monyh and the thinnest can reach 12000monyh.
3. Low wearing:the crushing wearing parts and the impeller of the Raymond mill mainly adopts German technology .And with the optimized design of the inner cavity structure and anti-abrasion and allergy materials ,the Raymond mill have made the lowest wearing parts and the highest purities .

Raymond Mill Working 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.