1. Check the broken bag and make a record to find out the cause of the broken bag and solve the problem fundamentally. If the bad bag has a certain regularity, it always appears somewhere. You need to figure out the reason from the system design and installation.
2. After all the inspection doors are opened, if no bad bags are found and the outlet discharge concentration is still exceeded, there may be leakage or de-soldering of the flower board or the flue separator. If you pay attention, you will find obvious leakage of dust at the air leakage. Sweep the traces.
3. Inspection and treatment should avoid the cleaning time, or stop the machine, or turn off the PLC, and require the warning of listing and monitoring, and can be carried out under the condition of ensuring safety.