Rotary Mechanical Bar Screen Cleaner

I. Product Applications

The LXZS rotary screen cleaner (also known as a rotary solid–liquid separator) is an advanced solid–liquid separation device for water treatment. It is primarily used at the inlet of municipal wastewater treatment plants, residential community sewage pretreatment facilities, municipal stormwater and sewage pumping stations, waterworks, and cooling-water systems in power plants. This equipment is also widely employed in raw-water screening applications across various industries, making it an ideal solution for solid–liquid separation.
II. Structure and Operating Principle

This equipment employs a rotary design, in which specially shaped plow-like rake teeth are arranged in a specific assembly sequence along a horizontal shaft to form a rake-tooth chain. Depending on the water flow rate, the chain is configured with varying gap sizes and installed at the raw-water inlet. As the drive mechanism rotates the rake-tooth chain from bottom to top, debris in the water is lifted by the chain while the liquid passes through the gaps. Upon reaching the upper apex of the rotation, the chain reverses direction and moves downward, allowing the collected material to fall off under its own weight. When the rake teeth return to the bottom of the unit from the reverse side, the cycle resumes, continuing in a continuous reciprocating motion that continuously removes debris from the water and achieves solid–liquid separation.
III. Main Features
1. The drive unit employs a cycloidal pinwheel or helical gear reducer for direct electric drive, featuring low noise, a compact structure, and smooth operation.

2. The frame adopts an integral structural design, offering high rigidity and easy installation; two types of rake teeth are available: for the coarse screen, the tooth pitch is t = 150 mm, and for the fine screen...

3. Rake tooth pitch t = 100 mm;
4. The equipment is easy to operate and can be controlled directly on-site or remotely.
5. To prevent accidental overloading, the equipment is equipped with both a mechanical shear pin and overcurrent protection, ensuring safe and reliable operation.
6. When the equipment width exceeds 1,500 mm, a parallel-unit configuration will be adopted to ensure overall structural integrity, enabling continuous removal of debris from the water and achieving solid–liquid separation.
IV. Model Description

V. Water Flow Rate Table

VI. Table of Main Technical Parameters and Installation Dimensions

Note: Assume P is calculated for H = 5.0 m; for every 1 m increase in H, the total P equals P1(P2) + P; t represents the pitch of the rake-tooth chain link.
VII. External Installation Diagram

Meticulous Design

- Customized Drainage Treatment Blueprint

Leveraging a highly professional team and extensive experience, we meticulously design water supply and wastewater treatment solutions tailored to the specific needs of each region and project. Our comprehensive offerings include multi-system designs for debris interception, chemical dosing and reaction, and other critical processes, providing scientifically sound, customized engineering design services for wastewater treatment projects.

Diverse Products

- Forging a powerful tool for wastewater treatment

As a specialized manufacturer of water supply and drainage treatment equipment and materials, we offer a comprehensive range of complementary products, including systems for water supply and drainage treatment as well as bio-media and aerators tailored for wastewater treatment projects. Our extensive product portfolio meets a wide variety of application needs.

Professional Installation

- Ensure the drainage system operates smoothly

We boast a professional installation team that provides efficient installation services to customers across more than 20 provinces (including municipalities directly under the central government), as well as Hong Kong, Macao, and Southeast Asia. Adhering rigorously to standardized procedures, we ensure precise and flawless installation of water supply and wastewater treatment equipment, thereby guaranteeing stable system operation.

Keywords: trash-rack equipment, sedimentation equipment, flap-valve filter bed