Chain and Flight Sludge Collector|Reciprocating Sludge Scraper|Rectangular Tank Bottom Scraper

Working Principle

The closed traction chain runs along guide rails on both sides of the tank floor, driven by a unit at one end. When the chain moves forward along the bottom, the flights stand upright to push the sludge toward the collection pit. On the return path, the flights flip up or stay empty due to water resistance or guide rail design, preventing sludge from being dragged back. The system typically runs continuously at a very slow speed, or in an intermittent mode, ensuring the bottom sludge layer is cleared on a regular basis.

Application Fields

1.Water treatment pre-sedimentation tanks: scraping large amounts of sediment from high-turbidity raw water.
2.Meat processing wastewater: clearing heavy bone scraps and grease from the bottom of separation tanks.
3.Mine water treatment stations: pushing coal slurry and rock dust into the collection pit.
4.Textile and dyeing plants: scraping chemical sludge and residue from decolorization tanks.

FAQ

Q1: Does the chain on this Chain and Flight Sludge Collector break easily?
A: Not easily. It typically uses high-strength alloy steel chains and features mechanical overload protection (like a shear pin or torque limiter). If a large hard object falls in and jams the flight, the protection device cuts power to prevent the chain from snapping.

Q2: How do you ensure the sludge isn't dragged back on the return trip?
A: The flights generally use a hinged or angled design. When pushing forward, the flight stands upright against the sludge. On the return trip, water resistance or the guide rail slope causes the flight to flip up or lift, sliding gently over the sludge surface without dragging it back.

Q3: Is the equipment noisy during operation?
A: It's very quiet. Because the chain runs slowly underwater and the drive unit is equipped with a gear reducer, the operation is smooth and will not cause noise interference to the surrounding environment.