Spiral sludge dewatering machine

Working principle:

The main structure of this device is composed of multiple sets of fixed circular plates and movable circular plates that are interlaced and overlapping with each other, and a spiral shaft runs through the center.

The front part is the concentration section, and the rear part is the dehydration section. The concentration and dehydration processes of the sludge can be completed in the same chamber. After the sludge becomes slightly thicker in the concentration section, it is conveyed to the dehydration section by the spiral shaft.

During the process, as the filtration gap and the helical spacing gradually decreased and under the obstructive effect of the rear plate, a strong pressure was generated, causing the volume of the sludge to continuously decrease, thereby achieving complete dehydration.

Performance features:

High efficiency and energy saving: The operating energy consumption is significantly lower than that of traditional equipment. It is claimed to be less than 5% of that of centrifuges, and the operating cost is only about 40% of that of belt filter presses.

Low-maintenance operation: Compact design enables automatic continuous operation, without the need for filter cloth, and is less prone to clogging, significantly reducing maintenance requirements and operational costs.

Adaptable: No need for an initial sludge concentration step. It can directly handle sludge with feed concentrations ranging from 92% to 99.8%, and is even suitable for sludge containing high levels of oil/grease.

Environmentally friendly: Low power consumption, extremely low water consumption (claimed to be less than 0.1% of that of belt filter presses), and the consumption of polymers (agents) can be saved by approximately 60%, with low noise and vibration.

Savings in investment: The compact design can save over 60% of the infrastructure investment in the dehydration workshop, and can replace traditional belt filter presses or plate and frame filter presses, reducing the need for construction of sedimentation tanks and sludge concentration tanks.

Application:

This type of overlapping spiral sludge dewatering machine is widely used in various scenarios where the reduction and stabilization of sludge need to be carried out, including:

Municipal water supply plants and sewage treatment plants.

Industrial wastewater treatment plants (such as in the food and beverage, chemical, machinery manufacturing, and metal processing industries).

Wastewater treatment for agricultural, fishing communities, and livestock farming (such as dairy farms, meat processing plants).

Other occasions requiring dehydration treatment, such as papermaking, building material manufacturing, oilfield water treatment associated with oil extraction, and laundry wastewater, etc.

Technical parameters:

Remark: Special requirements can be customized.