The calibration, maintenance, and operation details control of laboratory paper makers are key to ensuring accurate and reliable paper performance testing. The following will explain from three aspects: calibration, maintenance, and operation:
calibration
Calibration cycle: Flexible adjustment based on frequency of use, maintenance status, and environmental conditions. If there is a deviation in the measurement results of the instrument, if the operator is replaced, if the experimental environment changes, or if the detection error exceeds 5% using a standard solution, it is necessary to calibrate it in a timely manner. For example, frequently used paper makers can shorten the calibration cycle and ensure measurement accuracy.
Calibration method: Use standard samples for calibration. Select a sample with a specified reference value and stable performance, test it according to standard procedures, compare the test results with the reference value, and adjust the instrument parameters to ensure that the error is within the allowable range. For example, regularly testing the quantitative and thickness parameters of the paper maker with standard paper samples to ensure measurement accuracy.
maintenance
Daily cleaning: Keep the surface and interior of the paper maker clean to avoid dust and dirt affecting performance. Wipe with specialized cleaning agents or dust-free cloths, and follow the manufacturer's recommended cleaning method for precision components. For example, regularly clean the pulp dirt on the paper feeder mesh groove, blanket, and running rollers to prevent blockage or wear.
Regular inspection: Check whether each component is normal, such as whether there are impurities in the mesh groove and blanket, and whether there are people working in the danger zone; Check whether the pressure gauge and safety valve are accurate and reliable, and regularly replace damaged or malfunctioning components. For example, check the manhole and sealing at both ends of the dryer once a month to ensure smooth discharge of condensate water.
operation
Pre startup inspection: Conduct a comprehensive inspection of all components and send a startup signal after confirming that there are no abnormalities. For example, check for debris in the mesh groove and blanket, and ensure proper lubrication of the bearings at both ends of the dryer to ensure the normal operation of the equipment.
Operating standards: Strictly follow the operating procedures to avoid misoperation. For example, when cleaning woolen cloth with a rubber hose, maintain a distance of at least 0.4 meters and do not wrap the hose around your hands; When an object falls onto a mesh groove or woolen cloth, it must not be picked up by hand. If necessary, the machine should be stopped for handling.