River channel pumping station stormwater and sewage gratingDecontaminateMachineTechnical Description:

1.General requirements

The Rotating Rake Screen Cleaner (hereinafter referred to as the Rake Screen Cleaner) is a complete set, each unit of which should be equipped with accessories necessary for safe, effective, and reliable operation. The Rotating Rake Screen Cleaner requires accessories such as a protective cover, lubrication system, level gauge, local control cabinet, and all electrical and control cables from the control cabinet to the equipment, as well as accessories required for the effective and safe operation of the Rotating Rake Screen Cleaner.

2. Process Design and On-Site Conditions

The grille cleaning machine should match the dimensions specified in the design drawing.

2.1 The格栅cleaning machine should be capable of sweeping debris across the entire width of the channel. The design of the machine's frame, steel platform, and all components should ensure a service life of at least 15 years in harsh environments.

2.2 Each格栅除污 machine should be capable of handling peak flow of wastewater, with an average sludge quantity of approximately 0.1m³/10³m³ (wastewater).

2.3 Under normal circumstances, the grille cleaner operates intermittently, but can also run continuously for 24 hours if necessary, with a line speed not exceeding 3 m/min.

2.4 The machinery and equipment should have a fault-free operating time of not less than 10,000 hours, and the overall service life of the unit should not be less than 10 years.

3. Structure & Materials

The rotary grille cleaner is mainly composed of the driving unit, frame, transmission sprocket, traction chain, plow-type tooth rake, and electrical control cabinet, among other key components.

The drive motor is mounted on the side shaft of the frame, and the tines are driven by the chains on both sides. The scraper tines lift the waste from the bottom to the top across the entire channel width. Upon reaching the top, the waste is automatically discharged through the kinetic energy of the guide rail and the sprocket's转向.

The entire grille assembly is directly mounted on the channel. Solid particles in the water are captured by a filter belt connected in series with the犁-shaped tines, which are then conveyed to a higher position at the rear of the cleaning machine's drive unit for discharge. The filter belt is self-cleaning during its movement, as it passes through the gaps between the tines of the next row. Additionally, a rotating brush is used for further cleaning of the filter belt. The tines, after assembly, form vertical and horizontal spaces that allow water to flow through. The tines should be made of reinforced nylon with high impact resistance, non-deformation in wastewater, and excellent wear resistance, with a lifespan of 10 years.

The rotary grille decontamination machine should have a reliable cleaning effect, possess a dependable self-cleaning capability in its structural design, and not have any debris entanglement or jamming issues. Additionally, there should be no accumulation of dirt at the bottom of the grille to form dead corners. The water level difference before and after the grille should reach At 1.0m length, the comb formed by the assembly should possess sufficient strength and rigidity to prevent deformation or tooth breakage, which could affect the normal operation of the equipment.

Duwan格栅污物清除机Primary Materials：

Drive shaft     420 Stainless Steel

Rack     304 Stainless Steel (Thickness ≥ 8mm)

Engine Hood     304 Stainless Steel

Tine     Enhanced Nylon(Thickness ≥ 4mm)

Chain     304 Stainless Steel

Guidance Device 304 Stainless Steel

Fasteners     304 Stainless Steel

Note: The material grade of the aforementioned components must be higher (larger) or equal to the requirements stated above.

Rotary Grating Cleaning Machine Technical Parameters：