1、 Working principle:
Working principle of drum type fine grille: Simply put, sewage passes through a filter screen,
Retain large solid particles and suspended solids on the surface of the sieve, filter the wastewater and discharge it through the effluent tank. Usually, the particle size of impurities in water is relatively small, and if it contains small particles such as hair, a drum type mechanical grid can be used, with a grid gap of 0.3-1mm. The difference between internal and external water intake: The internal water intake pipe directly enters the interior of the drum, and the sewage is intercepted by the solid and suspended solids on the inner surface of the screen and then falls into the slag hopper through the rotation of the drum. Working principle of external inflow: Wastewater enters the collection tank and overflows to the surface of the drum screen through overflow. Solids and suspended solids are intercepted by the screen and scraped to the slag hopper by the scraper plate. The filtered water is discharged from the outlet tank through the pores of the screen.
2、 Equipment composition:
The drum type fine grille is mainly used in sewage treatment and industrial wastewater treatment projects to remove small floating objects in water,
After being commonly used for coarse grids, it mainly consists of a reducer, screen mesh, spiral shaft, cleaning device, bracket, slag hopper and other systems: usually, the fine grid of the external inlet drum is limited by its structural form, and the filter grid drum can only adopt a wedge-shaped spiral mesh form. The fine grid filter drum of the internal inlet drum can use different filter materials according to different filtration needs, such as wedge-shaped spiral mesh, punched plate mesh, stainless steel wire mesh, etc.

3、 Product Display: