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1, running records

Each ventilation and dust removal system should be installed and equipped with necessary test instruments, must be measured in daily operation, and accurately recorded, which can be based on the system pressure, inlet and outlet gas temperature, the main motor voltage, current and other numerical and changes to judge, and timely discharge of failure, to ensure normal operation.

Through the recording found problems: deashing mechanism, bag condition (breakage, paste bag, clogging and other problems), and air volume system changes.

2, fluid resistance

U type pressure difference meter can be used to judge the operation, such as pressure increased, which means bag appears to be blocked, bag with moisture condensation, a dust removing mechanism failure, ash fouling too much that blocking the filter bag, gas flow rate increasing situation. The pressure difference means that there is broken or loose into the bag, the air side pipe is blocked or shut off the valve. The case of the box or the sub - room has the leakage phenomenon, the fan speed to slow down and so on.