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The mobile grab cleaning machine can be usefully applied to all types and various water intakes

Edit:Xinertai Hydraulic MachineryUpDate:2020-03-12

The grab-type trash cleaning machine is mainly composed of rail beams, mobile trolleys, trash cleaning buckets, underwater trash racks, and electronic control systems. The working principle of the automatic cleaning machine is to drive the trolley to move along the track plane through the drive equipment set up and above the moving trolley, and through the photoelectric digital module induction control technology to ensure the azimuth accuracy of the trolley moving within the grid surface. When arriving at the pre-determined slag removal position of the grille, use the hoist operating principle, the deceleration organization in the load trolley starts according to the instruction, and drives two sets of wire rope drums, so that the slag removal tooth rake completes up and down movement under the traction of the wire rope; together, synchronous sprockets are selected. The transmission organization completes the synchronous movement of the hydraulic hose and the wire rope drum. When the slag removal tooth rake closes the arc-tooth harrow to remove the slag according to the predetermined closing angle, the motor is commanded to raise the slag removal tooth harrow together; after the tooth harrow reaches the preset height, the control system instructs the trolley to move and send the dirt to the garbage The storage bin thus completes a grill cleaning process.

The mobile grab cleaning machine can be effectively applied to the intake of fresh water and waste water of all types and various field conditions, and can remove various impurities and wastes. This equipment has been successfully installed in many large and medium-sized hydropower stations and other water conservancy projects.

Application scale:

Large and medium hydropower station

Rainwater and sewage pumping station

Sewage treatment plant

Thermal power plants and nuclear power plants

Various industrial water intakes.

Structure description:

1. The mobile grab cleaning machine consists of three main parts: suspension rail and support structure, mobile trolley and hydraulic grab unit.

2. The primary function of the suspension guide rail is to provide support for the motor and moving wheels installed on the mobile vehicle.

3. The suspension is supported by hollow steel, and the suspension generally extends to the debris discharge area.

4. The main components of the mobile trolley include wire rope ring tube organization, tubing ring tube organization, buffer equipment and hydraulic system. It is driven by a reducer installed at one end of the mobile trolley. The moving wheels are directly mounted on the output shaft of the gearbox. In addition, there is a group of free support wheels to ensure the parallel between the moving trolley and the track.

5. All power and control signals are supplied by cables installed inside the guide rail.

6. The hydraulic grab contains a grab that is controlled by a hydraulic cylinder to open or close. The hydraulic transport hose transports the power from the mobile trolley to the hydraulic cylinder. The oil pipe and the grab lifting wire are raised and lowered simultaneously, and the oil pipe layering and stretching equipment is provided.

7. During operation, the trolley moves along the track to the first dirt-grabbing position, which is manually stopped or accurately measured by the limit sensor switch. The trolley stays here while the grab moves downwards.

8. During the descending process of the grab bucket, push the waste down to the bottom of the grid. After reaching the bottom, the grab bucket is cleaned and closed, and then runs upward. In the arbitrary descending process, when there is a large dirt grab that cannot be lowered, the descending motor actively stops and closes the tooth rake, and rises to grab the dirt.

9. When the grab reaches the top, the trolley moves along the guide rail to the slag unloading place, the grab opens to pour the dirt to the slag unloading point. Then the trolley and grab move to the second dirt catching position. The dirt catching position of the grab depends on the total width of all grilles. (In active control) is determined by the limit points on the trajectory.

10. After all the scratches have been cleaned up, the trolley will come back and park in the debris discharge area. If there is too much waste or some other problem prevents the grab from reaching the bottom of the grille, check whether the wire rope on the trolley is loose The equipment can stop the grabbing bucket from moving downwards, close the grab bucket and raise the dirt upwards, send the dirt to the slag discharge point and then come back to this grabbing position to continue the cleaning process.

11. Can provide remote control or full active operation control.

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