Common fault and treatment in cement manufacturing plant chapter three

Common fault and treatment in cement manufacturing plant chapter three

1.2.2 Metal or other things enter into the mill

Vertical mill is worked under a high-pressure. Bolt loosening, bolt off the welding and pill off etc., will cause the mill vibration. When the iron and other metal material enter into the mill, it will not only cause grinding roller and plate hardening layer crack, but also cause the impact of the pressure layer then cause vibration.

Treatment measures: to install metal detectors and iron remover at the appropriate location of external circulation system, to prevent metal and other material enter into the mill, always removed iron material to ensure the normal use of iron removal.

1.2.3 Roll loose and lining loose

If the control shows the vibration is too large, the scene has been found regular vibration and dull sound; an emergency stop should carry out. Run inspection to check whether the bolt is obvious loose, any foreign material inside cavity. If the grinding plate liner is loose, generally showing a continuous vibration, can feel the plate shows several vibration every circle. (How many grinding roller, how many times of vibration)

Treatment measures: To stop the grinding equipment immediately when the roll and liner are found loose, run detailed inspection, and to guide the treatment of professionals, or it will cause serious equipment accidents.

As long as the reasonable adjustment of the relevant operating parameters during production and operation, stable feeding volume, control into the grinding material size, moisture and water spray, to improve the uniformity of the material into the material layer as far as possible to ensure that the thickness of the layer, adjustment roller pressure, stable mill conditions, vertical mill will be worked under high quality, high capacity, safe and smooth.