Advanced Screw Press Sludge Dewatering System for Petroleum & Chemical Industries

High-Efficiency Screw Press Sludge Dewatering Machine for Petroleum and Chemical Industries

Product Overview
The Longdai screw press sludge dewatering machine is a non-clogging spiral filter press designed for high-performance sludge treatment in demanding industrial environments. By efficiently reducing sludge volume, it eliminates the need for additional sedimentation and concentration tanks, significantly cutting construction and operational costs for wastewater treatment plants. Equipped with a unique self-cleaning mechanism using screws and moving rings, and fully automated PLC control, this machine offers a modern, reliable alternative to conventional dewatering equipment such as belt filter presses and chamber filter presses. Its low rotational speed ensures minimal power and water consumption, outperforming centrifuges in efficiency and establishing it as a leading solution in sludge dewatering technology.

Working Principle
Flocculated sludge enters the filtration zone from the mixing tank and is conveyed toward the discharge end by the rotating screw. As the pitch between the screw flights gradually decreases, mechanical pressure on the sludge increases, effectively squeezing out moisture. The released water escapes through gaps between the moving and fixed rings, while the continuous movement of the rings prevents clogging by self-cleaning the filter gaps, ensuring uninterrupted operation.

Applications
This dewatering screw press is suitable for a wide range of applications, including:

• Municipal wastewater treatment plants

• Industrial effluent treatment systems within petroleum, chemical, fiber, papermaking, pharmaceutical, and leather industries

• Agricultural and organic waste treatment such as dairy manure, palm oil sludge, and septic tank sludge

Practical operations demonstrate that this system delivers significant economic and environmental benefits.

Key Advantages

1. Closed Design: Minimizes odor and noise emissions; reduces wash water consumption to 1/8 of that required by belt presses

2. Energy Efficiency: Very low power consumption—only 1/20 of that of centrifugal dewaterers

3. High Solids Capture: Produces cake with high solid content, reducing disposal costs

4. Minimal Operator Intervention: Automated operation lowers labor requirements

5. Ease of Operation and Maintenance: User-friendly design simplifies daily handling and upkeep

6. Full Automation: Supports automatic start-up, operation, and shutdown

7. Touch Screen Interface: Optional intuitive control for enhanced usability

8. Monitoring System: Integrated sensors for sludge flow and cake consistency monitoring

9. Versatile Configuration: Customizable options available for specific applications including dairy, palm oil, and other industrial sectors

Parameters

Real picture

Company Profile

Jiangsu Longdai Environmental Technology Co., Ltd. is an environmental protection equipment manufacturer with 11 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three branches in China, and cooperated with many universities to build Longdai R&D center. There are 4 middle doctors, 10 masters, and 25 senior engineers.

       Jiangsu Longdai Environmental Technology Co., Ltd. is an environmental protection equipment manufacturer with more than 15 years of experience. It has provided a large number of sophisticated environmental protection equipment at home and abroad, established three branches in China, and cooperated with many universities to build Longdai R&D center. There are 4 middle doctors, 10 masters, and 25 senior engineers.

       Main business: "Petrochemical Wastewater Treatment, Urban and Rural Wastewater Treatment, Waste Gas Collection and Treatment, Industrial Wastewater Treatment, etc."

       Main equipment: "Integrated treatment equipment, grille decontamination machine, sand water separator, mud scraper, air flotation device, dosing device, sludge thickener, rotary drum micro filter, conveyor,Manual and Mechnical Bar Screen ,Bridge Scrapers ,Ordor Control System,Belt/Screw Conveyor,Disc Filter etc."

       Work follows 5 principles:

1.Sales

       The sales team keeps abreast of market prices and provides customers with the most accurate and most favorable quotations.

2.design

       The technical team participates in technical exchange meetings every year, exchanges experience with professionals, continuously improves technical competitiveness, and provides customers with the clearest and most practical design solutions.

3.manufacture

       The processing team controls the manufacturing details of each equipment, and manufactures the most sophisticated and reliable equipment for customers.

4.transportation

       The transportation team has been to every corner at home and abroad, and has never made any mistakes, planning the best route, and transporting equipment for customers is the fastest and safest.

5.quality

       The company has passed ISO9001-2008 international standard quality system certification.

       We look forward to contacting you, please give us a chance. I hope we can trust each other for mutual benefit and win-win results.

       Best wishes.

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       The following is our company's information:

       Jiangsu Longdai Environmental Protection Technology Co., Ltd.

       Phone: 0510-87837699

       Fax: 0510-87837599

       Chinese website: www.zgldhb.com

       Foreign language website: http://www.longdaiwwt.com/

       Email: longdaicompany@126.com

       Address: No. 20, Chengwen Road, Gaocheng Town, Yixing City

       Zip code: 214214