Raymond mill vibration analysis and processing method

Superfine Raymond mill set crushing, drying, grinding, powder, transportation as a whole, and set can be turned to use, with covers an area of small, simple process, high grinding efficiency, low energy consumption, low noise, high drying capacity, product fineness easy adjustment, no dust pollution and the overhaul, reliable operation characteristics. Raymond grinding mill widely used in cement, metallurgy, electric power, chemical industry, ceramic, non metal mine industry solid material grinding and superfine grinding. And superfine Raymond mill equipment belonging to the vertical structure, covers an area of small, simple system is new type of energy saving and environmental protection equipment, and has the advantages of simple operation, by the enterprise preference.

But superfine Raymond grinding equipment in operation may also appear a variety of problems, such as a often plagued by customers is vibration. Our some of the technical staff for the superfine Raymond mill to the latter part of the problem, made a series of communication research, summarizes the superfine Raymond mill vibration causes and treatment methods.

First we need to clear a little, is superfine Raymond mill equipment vibration problem is more common. Especially the new grinding equipment just put into production, the reasons for the vibration between the grinding roller and the plate thickness is not appropriate or foreign matter into the cause, in general, the grinding material particles is not uniform, bulk material and powder material entering the mill, if the block shaped material itself, or a large piece of material, such as iron or other foreign matter into the high hardness, due to segregation and inertial centrifugal force, the separation of the bulk material, the disc is more concentrated in in the periphery, causes between the grinding roller and disc thickness uneven, roller pressure instability and even overrun if, due to vibration mill; powdery material too much, most of the material is grinding airflow with, and separator will lead to increased, break down, this mill circulating load will appear, between the grinding roller and grinding material layer is too thin, or dry grinding phenomenon, resulting in vibration mill.

Solution: this due to the materials caused by the vibration conditions, through strict control of ground material granularity, ensure the grinding particle size qualified and materials into the mill speed is even, prevent iron in high hardness materials into the mill, to keep the stable and uniform feeding, measures to solve the problem of uneven thickness of material.

Secondly, into the grinding pressure of the gas flow instability will cause the vertical roller mill vibration, especially the kiln tail wind suction superfine Raymond mill equipment, due to the instability of rotary kiln feeding, resulting in waste gas of kiln tail pressure instability, containing a lot of dust in the kiln tail unsteady airflow into the cavity of the mill, causing circulation mill load increases, resulting in vibration mill. If it is caused by the vibration of Raymond mill can be by increasing the ring fan air valve opening, improve grinding air volume and pressure, stabilized material layer thickness of the way to solve.