In order to maintain the normal continuous running state, the drum grille needs to drive the chain for back-transport through the double-stage transmission reducer, so that the decontamination on the chain will engage on the grille strip and run from bottom to top. And remove the dirt left on the decontamination extension by the slag board.

It has been proved by practice that the drum grille has advanced performance, reliable quality and good decontamination effect. However, when using the drum grille, the amount of grid slag in the local sewage should be fully estimated, and the composition of the grid slag should be studied. According to the working principle of each type of grid decontamination machine, it can be reasonably selected and used in combination.

For the sewage treatment plant with a lot of floc slag, consider adding a drum grille with a pitch of 3mm. It is recommended to use the method of turning the molars to remove the garbage. The combination of the two types of grille can be completely avoided. Go to the blocking problem of the subsequent processing unit.

The drum grille adopts time control, and the auxiliary mode for setting the liquid level difference is preferred. The time value and liquid level difference of the operation stop should be set according to the field experience, and the running time of the grid should be reasonably shortened under the premise of ensuring the water volume and reasonable head loss. It not only ensures the accumulation of grid slag, avoids inefficient operation, but also reduces equipment wear and saves energy.www.khnwatertreatment.com