Common Fault Analysis and Solutions for Belt Filter Presses

Hunan Zhuohui Environmental Protection Equipment Co., Ltd.'s belt filter presses may encounter the following issues. When these problems occur, there is no need to panic. Simply follow the solutions I provide to address them step by step. Below, I have listed ten common faults that belt filter presses may experience, the reasons for these faults, and how to resolve them. Users are encouraged to read through them, as they may be of help.

The belt filter press's electrical control panel fails to power on or start the motor due to overloading or an emergency stop switch being locked, or a protective device being activated. Solution: Check if the protective device has tripped and if the drive load is overloaded. Inspect the electrical system for any damage.

The air pressure gauge cannot be adjusted due to a leak in the pipeline or pneumatic components, the air compressor failing to start automatically, or a blocked air filter or a faulty pressure regulator. Solution: Check for any damage or kinks in the air hose, inspect the air compressor and pneumatic components, and repair or replace them as needed.

The main unit automatically stops due to the filter belt deviating beyond the limit, triggering the protective mechanism. Solution: Relax the belt, manually move it back to the center, reset the protection, and once the machine is running normally, reposition the travel switch.

The belt filter press's filter belt deviates beyond the limit or causes wrinkling due to a malfunctioning deviation adjustment device. Solution: Check the air pressure, inspect the deviation valve for damage, ensure the belt sensor roller is not detached from the side of the belt, check the linkage for responsiveness, inspect the cylinder for damage, check for air leaks, and ensure the deviation roller is moving smoothly.

The roller shaft fails to rotate due to bearing damage. Solution: Replace the bearing.

The filter cake has a high moisture content due to insufficient flocculation, insufficient belt tension, fast dewatering speed, or the filter belt not being cleaned properly. Solution: Adjust the sludge and chemical mixture ratio, adjust the belt tension and main drive speed, and check the cleaning device.

Mud leakage on both sides of the squeezing section is caused by excessive feed, poor flocculation, or the filter belt's insufficient water permeability. Solution: Adjust the sludge valve switch, regulate the flocculation effect and the concentration of the flocculant, and check if the cleaning device is functioning properly.

The dewatered liquid or cleaning water contains too many suspended solids due to oversized apertures in the filter belt or insufficient flocculation. Solution: Replace the filter belt and check if the flocculant chosen is appropriate, and if the dissolution concentration is too high or too low.

The filter belt is not cleaned properly due to a blocked nozzle, insufficient water pressure or volume, or poor flocculation. Solution: Clear the nozzle, replace the cleaning pump, and check the flocculation effect.

Poor flocculation of the sludge is due to an incorrect mixture ratio of sludge to flocculant, low concentration of the flocculant, or high sludge concentration. Solution: Check the concentration of the flocculant, adjust the amount of chemical added, and replace the type and quality of the flocculant if necessary.