Reasons for the paper break in the press section caused by the failure of the electric drive of the paper machine and the solutions

　　The paper machine is a large-scale multi-component combined production system. Only when each component works normally, the paper machine can successfully complete the papermaking work. Among the accessories of the paper machine, the electrical system is the most important component. His performance The good or bad directly affects the high efficiency work of the paper machine. However, in the work, there are many types of faults related to the electric drive system. Today we have a look at the causes of the paper breakage in the press section and the solutions.

　　Breaking the press section is a difficult problem to judge. In general, the analysis should be based on the type of crushing and the location of the web break. If it is a composite press, there may be errors associated with the electrical control of the load distribution, and the loss of force between the rollers causes the paper sheet to suffer from a decrease in strength due to abnormal tension or pressure, and an increase in breakage. A single point can be checked individually.

　　Specific inspections include:

　　1. Whether each connection line has poor contact, especially related signal lines, such as feedback lines, communication lines, and input/output lines between load distribution points;

　　2, PLC program check, set the parameters of the upper and lower limits are appropriate, there is no error in the calculation program, the program is executed correctly;

　　3. Check the inverter parameters, whether the torque compensation is set properly, and whether the default parameters are consistent with the motor parameters;

　　4. Whether the motor is normal, abnormal sound or abnormal heat, etc. If all of the above are normal, then it is preliminarily determined that the electricity is normal, and observe the reasons of the process and raw materials.

　　In the operation of the paper machine, because of the loss and aging of the components, some failures will occur frequently. Therefore, we need to have some simple troubleshooting and troubleshooting methods to quickly find the paper machine when it fails. Solve the problem and put the machine into operation as soon as possible so as not to affect the work and cause losses. For more paper machine troubleshooting, please contact the technical staff of Puyang Shengtai Paper Machinery Co., Ltd.

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