Common faults, cause analysis and troubleshooting methods of vacuum filter
The common faults, causes and troubleshooting methods of rubber belt vacuum filters are shown in the following table
| content | reason | Method of exclusion |
Filtrate becomes turbid | The width of the filter cloth is not enough | Use suitable filter cloth |
| The filter cloth has holes | Repair or replace | |
| Insufficient filter cloth density | Use suitable filter cloth | |
| Feeding too fast, overflowing the filter cloth | Pay attention to operation and reduce feeding | |
| Unclean unloading and wash the filter cloth | See the related content of this troubleshooting for details | |
| Slurry changes, causing diafiltration | Control process conditions | |
| The washing area is not long enough | Increase sink | |
| The filter cake is washed and not clean | Uneven water flow in the washing tank | Adjust the level of the sink |
| Too little washing water or not enough washing times | Re-determine the process conditions | |
Filter cloth deviation | The width of the filter cloth changes | Adjust the position of the travel switch |
| Insufficient thrust of deflection adjusting cylinder | Increase air pressure | |
| Wrong gas connection | reconnect | |
| Electromagnetic directional valve malfunction | Overhaul or replace | |
| Blockage or leakage of gas pipeline | Overhaul the gas pipeline | |
| Uneven cloth causes uneven filter cake | Improve cloth method | |
Wrinkles in the filter cloth | Filter cloth deviation | For details, please refer to the relevant regulations on troubleshooting of the fault |
| Rubber belt deviation | Adjustment | |
| The deviation adjustment device is not working properly | Deal with the deviation of the filter cloth and rubber filter belt | |
Filter cloth is not clean | The moisture content of the filter cake is too high | Lengthen the dry area or dry time |
| Inappropriate filter cloth selection | replace | |
| Clogged sprinkler pipe or nozzle | Clean up | |
| Insufficient cleaning water pressure | Increase water pressure | |
| Clogged water tank | Clean up | |
Insufficient vacuum | Leakage at the vacuum device connection | Improve the leak tightness |
| Insufficient suction of vacuum pump | Repair the vacuum pump | |
| The filter cake is severely cracked | Speed up the filter speed or check whether the sliding table is flat | |
| The filter belt is tilted on both sides | Adjust the gap between the filter belt and the vacuum device |