3 things your need to know about Raymond mill

3 things your need to know about Raymond mill

The Raymond mill is an important mechanical equipment and is widely used in fine powder production, for example, in the production of silicon carbide powder. It grinds to obtain fine powder products with a special size range.

In the Raymond mill grinding system, the raw silicon carbide ores are first fed into the tank of the Raymond mill by the vibration feeder and then are grinded into the silicon carbide powders using the grinding rollers and grinding rings. The air blower supplies the wind into the tank of the Raymond mill and then the silicon carbide powders are blown into the air classifier for classification. The silicon carbide powders with specialized ranges will pass through the air classifier and are collected into the storage tanks, otherwise, the silicon carbide powders with other sizes will drop back into the tank of the Raymond mill for regrinding. In this Raymond mill grinding system, the operating load should be kept at a desired setpoint by regulating the feed rate of silicon carbide ores. Too large an operating load increases the possibility of production accidents and also affects the uniformity of the powder size. On the contrary, too small an operating load will reduce the yields and production efficiency. Note that, strong external disturbances, such as variations in feed ore size and ore hardness, always exist. In this case, keeping a constant operating load is an important and difficult task in the Raymond mill.

Working Principle of Raymond Mill

First material should be crushed into the desired size by Jaw Crusher and delivered to the Silo by Bucket Elevator. Our Designed Vibrating Feeder will feed the material into the grinding room. With the air current from the Air Blower, the powder that conforms to the fineness degree will be blown into the cyclone collector and the powder that is not consistent with the desired size will return to the grinding room to be re-ground. The whole system is airtight circulation and circulatory flow under negative pressure.

Raymond Mill Structural Characteristics

The whole Raymond grinder is of a standing structure. Raymond mill features small occupying space and strong integration capacity. Raymond Roller mill can form an independent production system from the lump materials, crushing to finished powder and packaging. All the finished particles have a good uniformity of fineness, with a passing screen rate as high as 98%. This is what other machines cannot reach. The machine adopts an electromagnetic vibrating feeder, which ensures even and regular feeding. Raymond mill is easy to adjust, small in dimension, light in weight, with lower oil and power consumption, and easy to maintain. The transmission device of the main unit is equipped with a closed gearbox which ensures its smooth transmission and reliable operation. Attendance of operations is not necessary for the mill operating room because of the adoption of an advanced central control console switch.

How does the Classifier work

The fine powder flows into the cyclone collector together with airflow and is expelled from the powder Raymond Mill output pipe as a 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 under negative pressure, the increased airflow is guided to the duster and sequentially to the atmosphere after purification.

Jingying Machinery provides both R-type Raymond mill and YGM high-pressure Raymond mills.

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