Proper maintenance can avoid eccentric cone broken copper set of burn

Proper maintenance can avoid eccentric cone broken copper set burn set 2021 - 02 - 28 in the crushing plant, fault occur, this is about to stop the crusher, the implementation of an unplanned maintenance. Once a failure, you need to take some preventive measures, in order to avoid repeated failure occurred. One unexpected outage might be eccentric copper set of burn. In general, there are three conditions that liner burn set: low crusher completely binding low lubricating oil overheating have copper scrap lead to low return oil filter eccentric copper set of burning set of factors are: the low use of incorrect low lubricating oil lubrication system ( Oil pump) Improper fault low plate cavity shape when the poor quality of liner low tension side discharging mouth ( CSS） Too low feeding segregation low powder content in the feed material is high low burning set direction of rotation is not correct copper set of measures have? First, you need to find out the main reason for the failure, in order to make clear what action could be taken to prevent the fault repeatedly. Then, must immediately remove the damage of copper set, for replacement. Some preventive measures should be taken: when the copper set of adhesion on the crusher spindle ( See image below) , must be removed cutting. Pay attention not to scratch when cutting copper set of spindle next steps? Next, must be the main shaft and eccentric inner surface cleaning and polishing. Later, in at least four highly take 90 & deg; Diagonal position of two points, and eccentric inner diameter measuring spindle diameter, as shown in the figure below. These measurements must be submitted to metso technology department, to assess whether it within the tolerance limit. If more than the limit range, should install the new set of brass. Conversely, metso will repair Suggestions, or one of the components must be replaced. Installation shall comply with the crusher operating instructions. Back to normal before operation, should be set to run the running-in, follow these steps to copper: low no-load running 1 hour crusher; Low load operation crusher 50% 2 hours, but should be run at maximum discharging mouth, to drive the motor rated power of 50% ( Or 60% of the nominal current) ； Reduce the discharging mouth run crusher, until you reach 75% of the rated power, continue to run 4 hours; Reduce the discharging mouth run crusher, until you reach 100% of the rated current, and run for an hour. In between the above four steps, check the equipment, to ensure the normal working conditions, and in the process of crushing operation adjusting ring without beating. Tip: every time change lining board, should check all the crusher sheath, which helps to avoid equipment unplanned downtime. （ Source: metso company)