Elgin - Model ESS-3000DT - Dredge Dewatering System
From Dredge Dewatering
Elgin Separation Solutions manufactures effective solid recycling systems capable of handling high flow capacity for dredge dewatering operations. On-board linear motion shakers have the largest screening surface area on the market. In addition, systems have complete desilter and desander hydrocyclone manifolds incorporated into packaged trailer mounted systems making for an ideal mobile dredge dewatering solution.
Features
- Six (6) dual-deck providing for an impressive 340 square feet of screening surface area, effectively doubling competing systems.
- The industry’s most fully most integrated, user-friendly 3,000 gallon per minute (“gpm”) mobile dredge dewatering system available.
- Built on a 56’ long, dual-axel, rock-over trailer.
Products Details:
Elgin ESS-3000DT Dredge Dewatering System
Elgin’s 3000DT is the industry’s most fully most integrated, user-friendly 3,000 gallon per minute (“gpm”) mobile dredge dewatering system available in the market today. Built on a 56’ long, dual-axel, rock-over trailer used by Elgin for its KEMTRON 1000T and KEMTRON 1500T product lines, the Elgin ESS-3000DT is designed to maximize dredging efficiency while minimizing total operating costs.
Maximizing Discharged Solids Dryness
When it comes to dewatering dredge solids, the most valuable asset is screening surface area. No matter how sophisticated a shaker used, unless there is sufficient surface area, the dewatering process will never be maximized.
Maximizing Discharged Solids DrynessWhen it comes to dewatering dredge solids, the most valuable asset is screening surface area. No matter how sophisticated a shaker used, unless there is sufficient surface area, the dewatering process will never be maximized.Similar systems will use four (4) or five (5) linear motion shakers. Though this number of shakers may be sufficient, the fact is that competing systems utilized single-deck screens. As such, even with five (5) shakers, these systems rarely achieve more than 160 square feet of screening surface area. Elgin’s ESS-3000DT used six (6) dual-deck providing for an impressive 340 square feet of screening surface area, effectively doubling competing systems.
Combined with High-G Vibrator Motors, the Elgin ESS-3000DT’s 340 square feet of screening surface area ensures that solids are provided the most dewatering possible. No competing system available in the market comes close to providing the same surface area or dewatering potential of Elgin’s ESS-3000DT.
The Art of Continuous Recirculation
Elgin’ ESS-3000DT Integrated Mobile Dredge Solids Dewatering System has been designed to be cost effective and easy to use. Depending on the particle size distribution, Elgin’s ESS-3000DT will provide the lowest cost method of dewatering.
Relative to the processes involved, Elgin has designed the ESS-3000DT to receive incoming flow directly from the dredge to the bottom scalping deck of all six Hyper-G Dual-Deck Shakers. Elgin has added additional flexibility by incorporating gate valves, allowing for the individual isolation of specific shakers. Elgin’s shakers are designed so that they can be fitted Elgin’s own Norris™ profile-wire screens or Elgin’s own double layer, coarse mesh, polyester powder-coated screens. Elgin is the only dredging system manufacture that manufactures its own line of profile-wire and mesh screens.
When using profile-wire screens, the scalping decks remove all coarse debris greater than 1/16” (1,600 microns). When using coarse mesh screens, the scalping decks remove all coarse debris greater than 1,100 microns. While the shaker cut (coarse solids larger than the screen opening) is discharged from the shakers, the underflow filtrate slurry falls into a sloped underflow collection pan that is routed to the “dirty” tank. Elgin eliminates the cross-contamination of solids that would be introduced into the dewatering system by incorporating a sloped collection pan. The shaker underflow slurry from the “dirty” tank is used to exclusively feed the desander hydro-cyclones. Again, the underflow that would fall though the shakers is continuously returned to the “dirty tank” for recirculation through the hydro-cyclone treatment train. Only the desander overflow (<74 micron cut) will flow into the “intermediate” tank. The shaker underflow slurry from the “intermediate” tank is used to exclusively feed the desilter hydrocyclones. Again, the underflow that would fall though the shakers is returned to the “dirty” tank. Only the desilter overflow (<25 micron cut) will flow into the “clean tank”.
By providing constant recirculation of the hydrocyclone and shaker underflow, the separation efficiency of the treatment system is dramatically improved. More importantly, there is no chance for cross contamination of the cleanest material within the “clean tank”. This results in the least volume of fines leaving the dewatering system. Combine this with the industry’s highest screen surface area, you also achieve the driest solids.
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