LHG Bar Screen Grit Remover

LHG Rake Screen Machine

Overview

       The LHG type rotary rake screen machine is a continuous automatic cleaning device developed based on summarizing and analyzing the usage of domestic bar screen cleaning machinery at water intake points, while incorporating advanced foreign technologies. It is better suited to China's national conditions.

       The LHG type rotary rake screen machine is an ideal pretreatment equipment for water intake points in large and medium-sized water supply and drainage projects. It is widely used in the pretreatment of rainwater and sewage in urban areas and planned communities, as well as for removing debris from water intakes in water treatment plants, sewage treatment plants, power plants, and steel plants, thereby reducing the load on subsequent processes.

  Working Principle and Structure

      The rotary rake screen machine mainly consists of a drive mechanism, frame assembly, transmission chain, rake group, screen bars, and bottom bar screen.

      The reducer drives the sprocket to rotate the rake traction system, which in turn moves the rakes between the traction chains. Since each rake is inserted into the screen bars, it effectively transports intercepted debris to the upper limit position of the frame. During the chain's rotary direction change, the debris falls by gravity into the next process equipment. A small amount of debris adhering to the rakes is cleaned by a specially designed cleaning mechanism.

Features

1. The rakes move downward behind the screen bars and upward in front of them to scoop debris, preventing debris from being carried underwater and ensuring thorough cleaning.

2. Fully enclosed transmission chain, no entanglement.

3. Movable bar screen installed underwater, no dead corners for sediment accumulation at the bottom.

4. Mechanical and electrical dual overload protection, safe and reliable.

5. Fully automatic electrical protection control, with automatic control mode combining time and water level control. PLC interface is reserved, facilitating unmanned management.

6. Compact structure, buffered debris discharge, overload protection. High-quality materials, wear-resistant, reliable operation, and fully automatic operation.

7. Supplied as a complete unit, easy installation and commissioning. It is one of the most widely used equipment among various bar screens essential for water intake points.