Structure and operational principle

ZG-II rotary grille can remove rubbish by rotating external drum. This equipment is installed in the water canal with 35° tilting from horizontal plane. Sewage is flowed into the drum from the terminal of rotating drum and the water is outflowed from the grid gap of the side of rotary drum. Grills leaves the floating materials in the rotary drum which rotates at a certain speed. The upper drum has nylon brush and rinsing nozzle which remove grid slag and transmit, squeeze, and dewater by spiral conveyor to the upper end hopper. Finally, it is sent away by conveyor. 

Main characteristics

1.    Grille forms a 35° with the water flow. Due to mixture of parallel and countercurrent flow, the impunities with the thickness smaller than the grille’s gap can be separated.

2.    Grille is equipped with flushing devices with self-cleaning function.

3.    Cylinder structure enables the increase of passing water flow of traditional grille and decrease of the head loss and also decrease of stacking area in front of grille.

4.    All components contacting water are made of stainless steel and treated by pickling and passivating processes. They also have strong corrosion resistance and long lifespan in  civil sewage and industrial water.

5.    It saves much area and reduces the following disposal costs by integrated function of salvaging, transmitting and squeezing treatment of grille.

6.    It almost needs maintenance. Oil does not need to be added in rotary points. Refueling times are extremely small for driving device.