The inflow non-metal perforated grid can be converted into mechanical or electrical energy by internal combustion engines or fuel cells. The underwater moving parts of the grille are all stainless steel and do not require regular maintenance, but the mechanical transmission parts and reducer must be regularly inspected and filled with lubricating oil or grease. Longer waiting time for some biomacromolecules to dissolve organic compounds.
The installation angle of the inner inflow grille is 60°~80°, and the spacing between the grilles before sewage treatment is set as follows: manual removal is 25~40mm, mechanical removal is 16~25mm, and the large gap is 40mm. The inner inflow grille workbench must be equipped with flushing and safety facilities, and be at least 0.5m higher than the design high water level in front of the grille to ensure there is room for operation.
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.
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 width (mm）
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
Adopting stepped punching mesh plate design, large filtration area, easy retention of dirt, high filtration efficiency; especially strong adaptability to fibrous waste;
The box-plate structure is adopted, the whole machine is firm in structure, high in symmetry, stable in operation and simple in installation;
The sewage environment is fully considered in the structural design, and the heavy-duty traction chain is used as the transmission main body of the filter plate; there is no underwater bearing structure, which greatly reduces the probability of underwater failure and makes the operation more reliable;
Adopt high-efficiency rotating brush and backwash device to help remove dirt and ensure effective regeneration of filter surface;
The upper part adopts a front and rear closed structure, which is directly connected with the screen slag conveyor to improve the use environment;
Fully automatic operation control can be carried out according to the water level difference or timing to achieve the best energy saving effect.
Mechanical Fine Screen Options
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 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.