Screen type ladder grille decontamination machine/WJG plate-type Step Grille

Application

■ As it has good adaptability to and removal effect of fine particles and fiber waste contained in sewage, it is widely applied in the upgrading reconstruction, reinforced pre-treatment technological processes of sewage treatment plants.

Advantages

■ Adopt step-type punching plate design, have large filtering area, easily retain contaminants, and have high filter efficiency;

■ Be especially strongly adaptable to fiber wastes;

■ Adopt the box-plate-type structure, have firm structure and high symmetry, operate stably and be easy to install;

■ In the structure design, fully consider about the sewage environment and heavy-duty drag chain as the driving body of the filter plate;

■ Have no underground bearing structure, greatly reduce the underground failure probability, and operate more reliably;

■ Adopt high-efficiency brush and back-wash devices to unload contaminants and ensure the effective regeneration of filtering surface;

■ Adopt the front and back closed construction on the top, directly connect with the grille slag conveyor, and improve the working environment;

■ The equipment can be under full-automatic operation control according to the water level difference or at regular time to reach the best energy-saving effect;

The technological calculation process is as follows:

■ Discharge capacity (m³/h) = Unit discharge capacity (m³/m². h) × Effective discharge area (m²)

■ Effective discharge area (m²) = Effective water depth (m) × Effective filtering surface breadth (m)

■ Effective water depth (m) (the design well water velocity is 0.8m/s) = Grille water depth (m) – Water head loss (m)

■ The reference values of water head losses are shown in the table below: