Industry News

Focus on the field of micro powder grinding !

How to Reduce Vertical Roller Mill Vibration Problems

Source:clirikb Posted:2020-06-08

As a stone powder grinding machines, vertical roller mill will be used in gard stone powder processing everyday. Becasue of the vertical roller mill use, sometimes the vertical roller mill will appear vibration problems when it's running. So what's the reason of vertical roller mill vibration and how to deal with the problems? Clirik will talk this topic in today's industry news.


vertical roller mill

The Cause of Vertical Roller Mill Vibration


Mechanical Factors for Vertical Roller Mill Vibration

Common mechanical factors are mainly caused by equipment quality and installation quality problems. The main causes of vertical mill vibration are:

The roller lining and the grinding disc are not installed firmly;

The horizontal error between the reducer base and the foundation exceeds the specified range;

The stopper ring is not installed properly;

The stretching rod has deviations after long-term operation, resulting in uneven stress.


Electrical Factors for Vertical Roller Mill Vibration


During the operation of the vertical mill, the control system can be used for data monitoring and information feedback. According to the feedback information, the central control operator and the field equipment personnel can make adjustments to the system related data and equipment control. However, if the feedback data of the rotation measuring instrument or the vibration measuring instrument is distorted or even damaged, it will cause the system to fail to monitor or the feedback value is wrong, thereby affecting the system operation."


How to Reduce Vertical Roller Mill Vibration


Adjustment of Grinding Pressure

The central control operator should pay attention to the feedback value of the grinding pressure in time. When the grinding pressure is lower than the set pressure, it should be filled with nitrogen immediately to increase the grinding pressure. The balance between the three stretching rods should be ensured during the operation of the equipment. The imbalance between the stretching rods will increase the vibration of the equipment. In severe cases, the stretching rods may break. Maintain balance between stretch rods.


Feeding Operation

When the moisture of the feed material in the mill is high, the cooling air door of the mill should be closed, and the outlet temperature of the humidifying tower should be increased until the pressure difference in the mill reaches the standard value. When the material layer is too thin, the feeding amount should be increased to increase the equipment pressure difference, stabilize the material layer, and reduce equipment vibration. If the material layer is too thick, you should immediately reduce the amount of feed and increase the amount of ventilation to ensure a smooth discharge system. Keep the vertical abrasive layer stable at all times to avoid equipment vibration.


Avoid Foreign Objects

During the production process, on-site operators should always pay attention to avoid foreign objects entering the equipment. Fragments of broken wind guide blades or tools left by repair personnel can cause abnormal noise or even vibration of the vertical mill. The on-site staff should always pay attention to the operation status of the equipment and clean up any abnormal noise in time. If the volume of metal foreign objects in the mill is small, you can lift the grinding roller and clean it from the discharge opening; but if the volume of foreign objects is too large, you must stop the mill and open the mill door to clean it.


Using vertical roller mill in a good way will enhance the vertical roller mill service life, it will also reduce our production cost. Clirik had devoted into the filed of vertical roller mill R&D and manufacturing for more than 10 years. In recent, our new technology CLUM vertical roller mill start to sale all over the world, it can be used in more than 300 kinds of minerals 300-3000 mesh grinding. If you are interested in our CLUM vertical roller mill or you have any problems in your grinding mill using, you are welcome to leave your message on our website, we will arrange our customer manager contact you back with more details.


Get Quote