The fine grid decontamination machine is a special equipment for water treatment that can continuously and automatically intercept and remove various shapes of debris in the fluid. It can be widely used in urban sewage treatment. It can also be used as a front-stage screening equipment in the wastewater treatment process of textile, food processing, papermaking, leather and other industries. It is one of the solid-liquid screening equipment in my country at present.
Internal inflow fine (membrane) grid decontamination machine, sewage enters from the middle of the perforated fine grid, and is discharged from the inside to the outside through the opening grids on both sides, and the garbage is retained by the screen. When the water level rises to the set level When the screen plate drives the motor to work, the screen slag intercepted inside is lifted to the upper slag discharge area with the opening of the screen plate, and the screen slag falls into the screen slag tank under the combined action of its own weight and the cleaning brush and pressure washing water. And it is sent to the high drainage press through the chute or conveyor to complete the process of conveying, dehydration and pressing. At the same time, the grid plate is also cleaned and entered into the next working cycle.
Mechanical Fine Screen Composition
Parts of the fine grille of the inner inflow mesh plate frame; Drive System; Stencil System; backwash system; Division system and Electronic control system;
The geared motor drives the sprocket to rotate. The sprocket drives the mesh plate to rotate continuously; the sewage enters the grille from the water inlet, and passes through the mesh plate to overspeed. The water flows to the outside of the screen plate, and the dirt is left on the inner surface of the same plate. With the continuous rotation of the screen plate, it helps to the original part: the backwash system flushes the outside of the screen plate, and the dirt is washed to the receiving channel under the action of the flushing water. Feel free to check the flushing water from the well to the sewage outlet.
Mechanical Fine Screen Parameter
Grid width A（mm）
Grid well widthmm）
Effective filter width (mm)
Grid well depth H（mm）
Installation angle °
2 3 5 6 8 10
Running speed （m/min）
Less than 3
Main drive power (KW)
Cleaning power (KW)
Cleaning pressure (Mpa)
More than 0.3
Design maximum water level difference (m)
CapacityMesh diameter with 3mm (m3/hr)
CapacityMesh diameter with 4-6mm (m3/hr)
CapacityMesh diameter with 7-10mm (m3/hr)
Mechanical Fine Screen Advantage
Sewage flows in from the middle of the grille and flows out from both sides through the filter plate.
Compact structure, small footprint and large processing capacity, can adapt to the fluctuation of influent liquid level, small water head loss, high efficiency, high retention of filter residues, fibers and other substances, fully enclosed, light and light cover plate, easy to open and close, no filter residue material flow to the back of the grid phenomenon filtration The sealed connection between the plates is a proprietary technology that is not sensitive to gravel or grit filtration. The unique use of flushing rods and rotating brushes to automatically clean the filter plates.
Mechanical Fine Screen Options
Alternative screen types and sizes
Material 304 L / 316 L SS
Alternative voltage and frequency
Alternative degree of motor protection
Mechanical Fine Screen Application
It is a high-efficiency fine grille decontamination equipment that combines pollution blocking and decontamination. It is suitable for large, medium and small pump stations as fine grilles to intercept and remove floating objects in the water, such as: weeds, paper, cigarette butts, melon seeds, fibers, hair, etc. This model has a high dirt capture rate , the effective implementation of the subsequent treatment process.