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D.R. Sperry Sludge Dryers |
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Eliminate the high cost of sludge waste disposal. |
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D.R. Sperry Sludge Dryers provide additional resources to the already large line of Solquist™ solid / liquid separation products. Years of extensive research by Sperry testing laboratories have resulted in innovative engineering, design and manufacturing of wastewater treatment / sludge disposal equipment for countless industrial applications. Our equipment is proven and acclaimed worldwide for high performance, dependability and cost-efficient operation. |
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Filter Press Sludge Drying SystemThe Sperry Filter Press Sludge Drying System eliminates secondary operations and product variations with repeatable moisture levels from cycle to cycle. Pathogens, air pollutants and disposal costs are greatly reduced, and rapid heat transfer rates reduce the drying cycle.How it Works The heart of the Filter Press Sludge Drying Systems is a series of heated chamber plates in which the dewatering and drying occurs During the first step, the slurry is pumped and packed at standard densities into the chambers for normal dewatering. During the next step, the chambers are heated either electrically or with surplus low pressure steam while suction is applied to the discharge ports. This suction lowers the boiling point and causes the remaining liquid to evaporate. The actual drying time is set to achieve the desired level of cake dryness. After drying is complete, the press is opened, the plates are separated, and the dried cakes are discharged. |
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Continuous Feed Sludge Dryer |
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With Sperry's Continuous Feed Sludge Dryers, waste solids are reduced to a powder dry residue. Complete dehydration results in bulk weight and volume reduction of 75 percent and more. Immediate and substantial savings are realized through lower sludge disposal / handling costs. Additional long-term benefits can be realized through reduced RCRA liability / responsibility.
How it Works Minimum controls are required. The unit holding the hopper feeds a continual supply of sludge to the drying tube. Additional material can be added at any time during operation. The hopper can be filled to maximum capacity and left to run with only periodic inspection. It is available as a free standing unit, or it can be located under a new or existing filter press. The unit is heated with natural gas or propane. A stainless steel, variable-speed auger moves sludge through the dryer tube exposing all surfaces to heat and air. High temperatures within the burner tube cause complete dehydration, reducing sludge material to a dried granular residue. |
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