Multi-disc Screw Press Dehydrator

The Esmil Multi-disc Screw Press dewatering system is an environmentally friendly, high-performance technology helping businesses save costs by optimizing waste management. Our multi-disc screw press dewatering equipment is capable of processing the most difficult sludge and ensuring effective wastewater treatment.

The Multi-disc Screw Press Dehydrator is used to mechanically dewater sludge generated in industrial and municipal wastewater treatment facilities. As the most efficient method of dewatering, it requires minimum staffing and reduces operational expenses.

Compared with any traditional dewatering system, this equipment is more advanced. It is designed to automatically dewater, thicken, and filter fluid both in highly concentrated sludge as well as sludge containing a large amount of water.

Maximize efficiency and decrease costs with the finest features

• Enclosed design to prevent odors and excessive noise (lower than 65 Db);
• Low energy consumption (1/20 compared to centrifuge);
• Low water consumption (1/8 of belt press);
• Automatic start-up, operation, and shutdown;
• Intuitive control system.

Benefits of using Esmil Multi-disc Screw Press system

• Low investment and operation cost
• Automatic and continuous operation
• Energy conservation and environmental friendliness
• No secondary pollution
• Compact and efficient design
• Suitable for wide range sludge dewatering.

Low energy usage, low consumption of water, and a smaller footprint are all incorporated in a single unit that consumes less space and ensures continuous operation. The dehydrator is equipped with innovative self-cleaning discs, which ensure smooth continuous functioning without pauses due to clogging.

This sludge press machine is fully automated, and the control cabinet is built directly into the machine. Upon programming, the equipment will run independently following the set algorithms.

Exceptional design for maximum productivity

The thickness of the sludge dewatering drum discs is 0.12″, which is more than the similar models from other manufacturers. Such design guarantees the reliability and durability of the system.

The inner diameter and width of the disks allow for a large internal volume, which in turn maximizes the performance. They are only made of stainless steel and are assembled into a structural frame to achieve a more rigid structure.

The rotating shaft of the sludge screw press continuously runs the moving ring to clean the filtration gaps ‒ this sophisticated design prevents clogging. In addition, flights edges of the screw are protected by a hard metal strip, ensuring a lifespan of more than 10 years.

The working principle behind the sludge dewatering technology

The screw press sludge dewatering machine is essentially a massive press, which consists of a few integral elements ‒ dewatering drums, rinsing system, process tank, dosing tank, and flocculant tank equipped with a stirrer. The machine looks like a screw within a multi-disc dewatering cylinder, where one disc is fixed and the other one is moving. The front section separates the solid and the liquid, while the back section dewaters the solid.

As the pitch of the screw shaft moves from the thickening section to the dewatering section, the distance between the fixed ring and the pivot ring of the sludge screw press gradually decreases. The screw flights inside the cylinder transport concentrated sludge to the endplate of the press. The outcome is wastewater and solid cake ready for disposal.

Dimensions guide

The Esmil Multi-disc Screw Press Dehydrator is available in a range of sizes and models, depending on the size of your facility and the treatment that you would like to complete. The system is available with a dewatering unit that includes the necessary dewatering equipment, and it can also be mounted and fully assembled. See the available equipment dimensions below.

Dewatering drum construction

Capacity of MDQ and MDQ-C

*- information is based on experience of dewatering DAF-sludge with relatively high O&G concentration (40-60%) from meat processing plants (slaughter, poultry) and milk processing plants, etc.

Dimensions and features of MDQ models

*- information is based on a typical cyclical rinsing once per 10 minutes for 10 seconds

Dimensions and features of MDQ-C models

*- information is based on a typical cyclical rinsing once per 10 minutes for 10 seconds for each rinsing valve (from 1 to 6 valves).