Whether paper holding device is installed according to the designed installation size, as well as the local deformation of the web stabilizer, the wear of the seal strip, the blockage of the nozzle, etc., which affect the operation of the paper in the web stabilizer, resulting in paper edge leading difficulties and broken paper in drying. Therefore, it is necessary to do regular maintenance of paper holding device, and the main contents of maintenance include:

This includes the vertical position, the distance of the surface and seal from the dry mesh on the operating side, the drive side and the middle, the distance between the web stabilizer and the center line of the paper machine, and the distance between the seal plate and the dry mesh and the dryer cylinder. Note that when adjusting the position of the stabilizer, the dry net must be tensioned, otherwise an error will occur.

Usually try to use compressed air or a vacuum cleaner to clean the paper scraps and paper wool on the web stabilizer. If you need to use high pressure water to clean, as far as possible in the direction outside the web stabilizer and support, and to open the blower, so that the cleaning water is easier to flow out; The vacuum roller fan must be stopped to avoid cleaning dirt being sucked into the hole of the vacuum roller. If the hole of the vacuum roller is blocked, it will cause the paper to be difficult to draw paper at the vacuum roller. When cleaning, if there is water into the pressure sensor to measure the vacuum, it can be dried with compressed air, pay attention to close the pressure sensor before drying to avoid damage to the pressure sensor. In order to reduce the corrosion of the dryer, try to clean the web stabilizer when the paper machine has just stopped, so that the water splashed on the surface of the dryer can quickly evaporate.

Because the distance between the dry mesh and the paper holding device  seal is very small, the loading valve of the seal must be closed when replacing the dry mesh, otherwise the seal will be worn out when replacing the dry mesh, which will affect the vacuum generation of the stabilizer in the area where the seal is worn out.

Measure the vacuum in the high vacuum area and the bag area before and after each shutdown; The sheet measures and adjusts the required vacuum in case of stabilizer operation problems.

Including the air duct and its connecting parts, especially whether the part outside the web stabilizer is leaking; Whether the air duct is clean; Whether the air valve and actuator operate normally; Whether the pressure sensor in the high vacuum area and the bag area is normal; Whether the measured value of the sensor is consistent with that of the field manual measurement. If the deviation is too large, it must be corrected.