Hydro International’s HeadCell® or Grit King® grit separation systems are the first stage of the grit removal process. These separation systems send concentrated grit and organics underflow to a SlurryCup™, TeaCup®, or OpTeaCup™ for grit washing. Washed grit is then sent to a Grit Snail® which is a quiescent grit dewatering belt escalator that captures, dewaters, and retains even the finest grit. Grit Snail® effectively removes the water to provide solids output with low water content which reduces solids handling and landfill costs.
The belt operates within an abrasion-resistant belt housing and incorporates components with no metal-to-metal contact reducing wear. The variable frequency drive adjusts belt speed to match changing grit loads and the torque-limiting clutch protects the drive system and belt from mechanical overload.
Municipal wastewater plants with combined sewers or industrial loads require greater dewatering capacity; different sizes of Grit Snail® units or multiple Grit Snail® units can be configured to match any grit load.
Only Grit Snail®
- Separates the grit washing and dewatering process to reduce turbulence
- Uses quiescent dewatering in order to retain even the finest grit particles
- Has the capacity to handle very high grit loading conditions
Applications
- Non-turbulent dewatering for clean, fine grit output from Hydro International’s Advanced Grit Separation and Washing systems
Retain more, finer grit
Many conventional grit removal systems will combine washing and dewatering into a single process. Washing is a turbulent process, however, and dewatering should be performed under still conditions; combing these processes is why many types of systems fail to retain fine grit. Agitation from a combined washing / dewatering process can churn up finer grit allowing it to escape with water exiting the system. The Grit Snail® is a quiescent system with a slow-moving belt that eliminates this kind of turbulence, meaning that it retains more, finer particles.
Reduce operating costs
When matched with Hydro International separation and / or washing systems such as the HeadCell®, Grit King®, SlurryCup™, OpTeaCup® or TeaCup®, the Grit Snail® retains fine grit and outputs cleaned material with very low volatile solids or residual moisture, cutting odor and making the output easier to handle and dispose of. Your treatment plant is the best way to treat water and organics – avoid paying the expense of landfilling water and organic content with Grit Snail® dewatering.
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