Frequently Asked Questions About Multi Disc Screw Press Dewatering Machine

Frequently Asked Questions About Multi Disc Screw Press Dewatering Machine

Below are the most common questions that customers often ask about multi disc screw press in sludge dewatering and wastewater treatment projects, answered by YOUNTOR's professional team with years of industry experience.

1. What is a multi disc screw press, and what is its core function in wastewater treatment?

A multi disc screw press is a high-efficiency sludge dewatering equipment widely used in wastewater treatment. Its core function is to separate water from sludge through the combined action of screw extrusion and multi-disc filtration, reducing sludge volume and moisture content, making the sludge easier to transport, dispose of or reuse. It is a key equipment in the sludge dewatering process of various wastewater treatment scenarios.

2. What are the main advantages of YOUNTOR's multi disc screw press compared with other sludge dewatering equipment?

YOUNTOR's multi disc screw press has three core advantages: First, it has strong anti-clogging performance, thanks to the reasonable design of moving & fixed rings and spacer washers, which can handle sludge with high viscosity without frequent blockage. Second, it is energy-saving and efficient, equipped with a high-quality frequency converter, which can adjust the speed according to the sludge volume, reducing energy consumption. Third, it is durable and easy to maintain—key components such as screw shaft are treated with wear-resistant tungsten spray, and the whole machine adopts 304 stainless steel and sandblasting process, which is corrosion-resistant and has a long service life.

3. What types of sludge can YOUNTOR's multi disc screw press handle?

Our multi disc screw press is highly adaptable and can handle most types of sludge in wastewater treatment, including municipal sewage sludge, industrial wastewater sludge (such as printing and dyeing, food, chemical, pharmaceutical sludge), and sludge from water treatment plants. It can efficiently dewater both activated sludge and anaerobic sludge, with stable treatment effect.

4. How to determine the appropriate model of multi disc screw press for my wastewater treatment project?

The selection of multi disc screw press model mainly depends on three key factors: ① Daily sludge treatment capacity (tonnage per day); ② Sludge moisture content before dewatering; ③ Required sludge cake moisture content after dewatering. YOUNTOR's professional team will provide one-to-one consultation, combined with your project scale and actual needs, to recommend the most suitable model to ensure cost-effectiveness and treatment efficiency.

5. What is the moisture content of the sludge cake after dewatering by YOUNTOR's multi disc screw press?

Under normal operation, the sludge cake moisture content of YOUNTOR's multi disc screw press can be stably controlled between 60% and 80%, which meets the national sludge disposal standards. According to different sludge types and project requirements, we can also adjust the equipment parameters to achieve the desired moisture content.

6. Does the multi disc screw press require a lot of manual operation and maintenance?

No. YOUNTOR's multi disc screw press is designed with automatic operation in mind. It is equipped with a complete electrical control system, including frequency converter, forward & reverse control and delayed shutdown program, which can realize automatic start-up, operation and shutdown, reducing manual intervention. In terms of maintenance, it only needs regular inspection of key components (such as screw shaft, moving & fixed rings) and regular cleaning, with low maintenance workload and cost.

7. Why do some multi disc screw presses have serious sludge leakage during operation, and how does YOUNTOR solve this problem?

Sludge leakage is mainly caused by two reasons: ① The spacer washers are made of inferior materials (such as plastic) which are easy to age and deform, leading to improper filtration gaps; ② The flatness of moving & fixed rings does not meet the standard. YOUNTOR solves this problem from the source: we use 304 stainless steel for spacer washers and moving & fixed rings, with flatness controlled within ±10 microns, ensuring optimal filtration gaps and effectively preventing sludge leakage.

8. What is the service life of YOUNTOR's multi disc screw press, and do you provide after-sales service?

With strict quality control and high-quality components, the service life of YOUNTOR's multi disc screw press can reach 8-10 years under normal operation and regular maintenance. We provide comprehensive after-sales service, including on-site installation guidance, operation training, regular maintenance reminders and quick fault repair, to ensure the stable operation of your equipment in the whole process of sludge dewatering and wastewater treatment.

9. What is the material of YOUNTOR's multi disc screw press?

Our screw press dewatering machine can be crafted from 304 stainless steel, 316L stainless steel, or 2205 stainless steel, depending on the specific requirements of our customers.

10. Can the multi disc screw press be customized according to the specific needs of my project?

Yes. YOUNTOR supports customized services for multi disc screw press. According to your project's special requirements (such as sludge type, treatment capacity, installation space, required sludge cake moisture content, etc.), we can adjust the equipment structure, component materials and control system to create a personalized sludge dewatering solution that fully meets your needs.

11. How to reduce the energy consumption of the multi disc screw press during operation?

There are three effective ways: ① Use the frequency converter configured by YOUNTOR to adjust the operation speed according to the actual sludge volume, avoiding idle operation; ② Regularly maintain the equipment to ensure that all components are in good operation, reducing energy loss caused by component wear; ③ Choose the appropriate model according to the project scale, avoiding the waste of energy caused by over-matching the model.