In the daily operation of Soldering Hood, due to some changes in the operating conditions, or certain failures, it will affect the normal operation status and working performance of the device. The questions that should be noted are:
1. Operation record
Each ventilation and dust removal system must be installed and prepared for the necessary testes. It must be determined regularly during daily operation and records accurately. This can be The value and changes of current, etc. are judged, and faults are discharged in time to ensure its normal operation.
2. fluid resistance
The U -type pressure meter can be used to determine the operation: if the pressure difference increases, it means that the filter bag is blocked, the water vapor condensation on the filter bag, the ash clearing mechanism is invalid, too much ash accumulates to block the filter bag, the gas flow increases, etc. Happening. There are leakage phenomena and slowing speeds between boxes or divisions.
3. Safety
Soldering Hood should pay special attention to preventing measures to prevent combustion, explosion and fire accidents. When dealing with combustion gases or high -temperature gases, there are often unprofitted dust, Mars, burning and explosive gases, etc., and some dust are spontaneous or charged. It should be well considered to take fire prevention and explosion -proof measures, such as:
⑴ In front of the dust collector, a combustion chamber or Mars catcher can be set to make the unsure of dust and gases burning or catching off Mars.
⑵ Take measures to prevent static accumulation, all parts are grounded with conductive materials, or the conductive fiber is added during filter material manufacturing.
(3) Prevent the accumulation or accumulation of dust to avoid the spontaneous combustion and explosion of dust.
管 Before entering the bag room or pipeline inspection or maintenance, it is necessary to ventilate the air to prevent CO poisoning.
4. Stop operational precautions
Before the bag dust collector stops runs, in addition to clear the ash, the following problems should be paid attention to:
发生 Wet coagulation occurred in the bag room. This is caused by wet gases, especially after the burning gas produced. Therefore, it is necessary to discharge wet gases before the system cooling. It is only after the process equipment stops running, Soldering Hood's exhaust device should be operated for a while before stopping operation.
转 During the long -term stop operation, we must fully pay attention to the cleaning and rust prevention of the fan to prevent dust and rain from entering the bearings. Before stopping operation, the ash in the gray bucket should be eliminated. The ash clearing mechanism and the driver must be fully injected.
(3) During the stop operation of the bag dust collector, regularly running for a short time is the maintenance method to ensure the normal operation of the dust removal system.
5 maintenance
It is necessary to frequently check the action of the control valve, pulse valve, and timer.
The failure of the pulse valve rubber film is a common failure, which directly affects the ash clearing effect. The device is an external filter, and the bag is equipped with skeleton. Check whether the parts of the fixed filter bag are loose and the tension of the filter bag is appropriate. Therefore, it is required to divide the fog and water droplets, and the oil and water separator must be cleaned frequently to prevent the fault of the movement mechanism and the blockage of the filter bag.
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