Belt Press MITSU - specializes in manufacturing high-quality sludge dewatering equipment, saving costs, and modern design ensures it meets strict requirements.
OPERATIONAL PRINCIPLE
At the mixing tank, the liquid sludge is mixed with the appropriate ratio of polymer to form floc and then flows into the rotating drum. Here, under gravity and centrifugal force, most of the water is separated. Through the drum rotating, from a height with the acceleration of gravity, the sludge hits the filter belt and then passes through the water separation zone by gravity. The sludge continues to be compressed through the filter belt from the low-pressure area to the high-pressure area creating dry sludge.
- Step 1: Mix the sludge
After the liquid sludge is loaded into the agitator tank by the pump, it is mixed with the polymer. The physical and chemical composition of the sludge is changed to reduce the affinity between the sludge and water (flocculation) and gradually increase the accumulation of floc to improve the dewatering efficiency.
- Step 2: Preliminary separation of water (Rotating drum).
After the mixing time, the floc meets the condition and will be loaded into the rotating drum. Here the sludge is disturbed by the rotation of the drum, causing a large amount of water to be separated from the floc.
- Step 3: Separate water by gravity.
The sludge overflows through the rotating drum and falls into the filter belt, creating a low-frequency impact pulse to easily filter the water through the filter belt, and the sludge layer moves forward into the dewatering compaction zone.
- Step 4: Compress the water separator at low pressure.
After gravity separation, the sludge enters the low-pressure dewatering compression zone and forms a thick layer of sludge moving forward into the high-pressure area.
- Step 5: Compress the water separator at high pressure.
In the high-pressure compression zone, the filter belt moves through a number of rollers arranged zigzag so that the mud band between the two filter belts is cut to pieces by the pressure between the two filter belts.
