Are you experiencing tracking problems with your belt filter press?
You know what? Uneven sludge distribution and misaligned belt joints result in poor performance and can lead to tracking problems. Over time, this will damage the belt (e.g., wear, joint fatigue/failure, wrinkling) and wear out the roller. Unplanned downtime and replacement parts can take a toll on your belt press operation.
While it can be difficult to keep belts perfectly aligned all the time, here are some tips that may help.
Professional tips.
In general, a straight seam within 4-6 inches is "good".
Misaligned seams of 12 inches or more require action. After the adjustment is made, it usually takes 1-2 hours, or more, to see the full effect on the belt seam.
Observations on the distribution of silt
A good direct indicator of the sludge distribution of your belt press is.
Watch the sludge flow down the ramp of the feed tank to the gravity stage, and then
Sludge accumulation at the gate level at the end of the platform
The ideal distribution is to be slightly heavier at the edges - this can be observed at the levelling gate - to compensate for the edge diffusion of the pressure zone.
Changes in the conveyor feed rate and/or sludge feed concentration may result in uneven sludge distribution and need to be addressed. This can be achieved by manipulating the blade speed of the feed box and/or the adjustment of the trenching plough.
The blades of the feed tank need to be cleaned regularly. This practice should be incorporated into normal belt press cleaning procedures.
Guide: Common causes of belt misalignment and how to solve these problems
Case #1: The sludge distribution is heavy on both sides of the belt and light in the middle.
What is the reason? The feed box blades are too slow
The solution. Increase feed box blade speed
Case #2: Sludge is distributed heavily in the center of the belt.
What is the reason? The feed tank is pulling too fast
The solution. Reduce feed tank blade speed
Case #3: Sludge distribution on the right side of the belt is serious.
The reason why. Imbalance from feed tank due to flow variation
The solution. Use a row of trench plows to direct the sludge to the left side of the machine
Case #4: Sludge distribution on the left side of the belt is serious.
The reason why. Imbalance from feed tank due to flow variation
The solution. Use a row of trench plows to direct the sludge to the right side of the machine
