Grit Removal Equipment for Wastewater |GSJ Grit Scraper | Grit Chamber Scraper

Working Principle

After wastewater enters the grit chamber, heavier sand particles settle to the bottom due to gravity. The traveling bridge or chain structure of the GSJ scraper drives the blades to move slowly along the tank floor, pushing the settled grit toward the collection pit at one end. This Grit Removal Equipment for Wastewater is usually equipped with a grit lifting device to elevate and dewater the sand-water mixture before disposal, keeping the grit chamber's volume at full capacity.

Application Fields

1.Textile and dyeing wastewater: removing heavy fibers and sediment from desizing and wool washing processes.
2.Food and slaughterhouse wastewater: clearing visceral residue, bone fragments, and sediment from slaughterhouse discharge.
3.Pulp and paper mills: separating heavy impurities like nails and gravel mixed in recycled paper pulp.
4.Chemical and pharmaceutical plants: pre-treating reaction residue and crystallized particles before the wastewater station.

FAQ

Q1: Do the scraper blades on this Grit Removal Equipment for Wastewater wear out easily?
A: Not easily. The blades are typically made of wear-resistant rubber or high-polymer engineering plastics. They withstand grit abrasion while avoiding damage to the concrete tank floor.

Q2: What is the operating speed of the grit scraper?
A: It is usually controlled at 0.5–1.5 m/min. The speed must be slow enough to only scrape the heavy inorganic grit at the bottom without stirring up the organic sludge.

Q3: Can the sand-water mixture be hauled away directly?
A: No, not directly. It usually needs to be paired with a grit-water separator to dewater and dry the sand before it is landfilled or hauled away.