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