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US 10,093,570 B2Granted
Dynamic dewatering system
OwnerPaul Vetteinventor
Life of this patent
Estimating the term…
Abstract
A system is provided for the dynamic dewatering of any of a variety of sludges, slurries, or waters. A stream of material is treated in a series of distinct operations to release free water, draw off additional water through vacuum, and compress the resultant dewatered solids to result in a substantially dewatered material. One or more open cells are used in vacuum dewatering in continuous dynamic operation. The system may be integrated into a packaged unit that may be installed at a operation site, and maybe operated with multiple like units to increase treatment flowrates.
Claims15
A dewatering system comprising:
- an inclined screen configured to receive influent and allow water to separate from the influent to form a first material;
- a vacuum dewatering cell for processing the first material, the vacuum dewatering cell having a top, a bottom, and multiple walls forming a cavity,
- wherein at least two of the walls each comprise at least one cell partition having at least one sidewall, each cell partition sidewall has a porous surface, each cell partition is configured to receive water through the porous surface, and each cell partition is connected to a vacuum source,
- wherein the vacuum dewatering cell receives the first material at the top of the vacuum dewatering cell,
- wherein the vacuum dewatering cell has a vacuum conduit located within the cavity and between the walls;
- wherein the vacuum dewatering cell is configured to accept the first material from the screen such that the first material may continuously flow from the top of the vacuum dewatering cell to the bottom as water is drawn away through the cell partitions and such that the first material is expelled as a second material from the bottom of the vacuum dewatering cell,
- wherein the vacuum dewatering cell has a conveyor located in the bottom of the vacuum dewatering cell and the conveyor is configured to remove the second material from the bottom of the vacuum dewatering cell;
- and
- a compression device located and configured to accept the second material conveyed from the conveyor, the compression device capable of compressing the second material to release additional water.
6 more elements
A dewatering system comprising:
- an influent filtration unit, wherein the influent filtration unit receives influent, provides first dewatering to the influent by filtering the influent through an inclined screen, and produces a first dewatered material;
- and
- a solids processing unit, wherein the solids processing unit receives the first dewatered material from the influent filtration unit, provides second dewatering to the first dewatered material received from the influent filtration unit, and produces a second dewatered material,
- wherein the solids processing unit comprises a first end, a second end, a sidewall enclosure between the first end and the second end, and a cavity surrounded by the first end, the second end, and the sidewall enclosure,
- wherein the sidewall enclosure comprises at least one porous inner surface adapted to be connected to a source of vacuum to partially provide the second dewatering to the first dewatered material by drawing water through the porous inner surface, and
- wherein the cavity includes a vacuum conduit displaced within the cavity, the vacuum conduit configured to contact the first dewatered material to partially provide the second dewatering to the first material.
3 more elements
Dependencies are inferred from the claim text.