| TECHNICAL DATA AND SPECIFICATIONS |
Portable Dredge for any standard 18" or 20" (457-508 mm) pipeline
Nominal pump capacity range = 200-1200 yds3/hr (920 m3/hr)
ELLICOTT DREDGES, POWER-PACKED PORTABILITY
The New "Value-Engineered" Series 1870: Design criteria focused on dependability and low cost with rapid dismantling, mobility, reassembling and start-up; minimizing downtime and ensuring high productivity.
Principal Dimensions and Particulars
Specifications
Calculated Production Curve
Representative digging depths and dimensions for average dredging service. Configurations for deeper digging readily available - consult Ellicott.
| 1870 Principal Dimensions and Particulars |
| |
|
Metric |
English |
GENERAL |
Hull Length |
25 m |
82 ft. |
Hull Width |
8.23 m |
27 ft. |
Hull Depth |
1.83 m |
6 ft. |
Mean Operating Draft |
1.22 m |
4 ft. |
Ladder Length |
19.5 m |
64 ft. |
Center Tank Weight (complete with machinery |
59,000 kg |
130,000 lbs |
Spud Length |
20.4 m |
67 ft. |
Fuel Storage Capacity |
29,900 L |
7,900 gal |
DIGGING
DEPTH
50 ft
(15.2 m) |
Maximum channel width
@ 40° Swing each side CL |
@ Min DD |
46.3 m |
152 ft. |
@ Max DD |
37.2 m |
122 ft. |
Minimum channel width (with hull grounded) @ Min DD |
24.1 m |
79 ft. |
| 24.1 m |
79 ft. |
PRIME
MOVERS |
Dredge Pump Diesel Engine, CAT 3512 DITA |
955 kw |
1,280 HP |
Auxiliary Diesel Engine CAT 3408 |
354 kw |
475 SHP |
TOTAL |
1,309 kw |
1,755 SHP |
CUTTER
MODULE |
Cutting Force |
6,759 kg |
14,900 lbs |
Cutting Force per linear unit of blade |
71 kg/cm |
400 lbs/in |
Cutter Diameter |
1,372 mm |
54 in |
Cutter Shaft Diameter |
149 mm |
5.87 in |
Cutter Speed Range |
18-27-36 RPM |
Cutter Power |
186 kw |
250 SHP |
LADDER
HOIST
WINCH |
Line Pull - Second Layer |
11,566 kg |
25,500 lbs |
Line Speed - Second Layer |
30.5 m/min |
100 ft./min |
Wire Size |
22 mm |
7/8 in |
Ladder Hoisting Speed |
14 m/min |
46 ft./min |
Shaft Power |
41 kw |
55 SHP |
DIRECT
LINE
SWING
WINCHES |
Line Pull - Second Layer |
8,165 kg |
18,000 lbs |
Line Speed - Second Layer |
29 m/min |
95ft/min |
Wire Size |
19 mm |
3/4in |
Drum Capacity |
137 m |
450 ft. |
SPUD
WINCHES
AND
SPUDS |
Line Pull - Second Layer |
13,608 kg |
30,000 lbs |
Line Speed - Second Layer |
7.9 m/min |
26 ft/min |
Wire Size |
22 mm |
7/8 in |
Spud Outside Diameter |
610 mm |
24 in |
Spud Weight (50' DD) |
6,913 kg |
15,240 lbs |
OPTIONAL EQUIPMENT
Accessories and options can be offered with the Series 1870 "Dragon". Included are deckhouse to meet ABS offshore rules, choices of cutters, pump handling equipment, air conditioning or heating, anchor booms, production measuring equipment, and pipeline components.
ELLICOTT reserves the right to modify equipment in order to provide engineering improvements.
| Specifications - "DRAGON" Model Series 1870 |
HULL - Five tank design; quick connect/disconnect assembly; machinery in unitized center tank. Outboard pontoon tanks for flotation, ballast, and fuel storage. Hull bottom and side plate is 0.31 in. (7.9 mm); reinforcing up to 3/4 in. (19 mm); all of A36 or equal steel. Approximate operating draft of 4 feet (1.2 m). Deckhouse integral with center tank storage.
DIRECT-DRIVE CLOSE-COUPLED PUMP UNIT - Heavy duty dredge pump is designed and manufactured by Ellicott for maximum efficiency over a wide range of dredging conditions. Pump case, impeller, liners and throat piece are cast of special 500 BHN chrome carbide abrasion resistant iron. The pump is designed to facilitate maintenance and parts replacement. The close-coupled direct drive features totally enclosed oil lubricated reduction gear and heavy duty roller bearings on the impeller shaft. The pump is directly driven by a Caterpillar diesel engine equipped with heavy duty heat exchanger and oil filters.
HYDRAULIC POWER PACKAGE - Three hydraulic pumps are direct driven by heat exchanger cooled Caterpillar diesel engine. Hydraulic system includes four independent operating loop circuits; one for cutter, one for swing winch, one for ladder hoist, and one for spud winches and control pressure. The engine, hydraulic pumps, gears, cooler and reservoir are all mounted on a common base.
EXCAVATING MODULE AND LADDER - Cutter driven by slow speed, radial piston hydraulic motor. Maximum cutter force available at all speeds. Underwater excavating module features short drive shaft with weight concentrated at the cutter for efficiency. Cutter can be angled down for shallow digging. Excavating module drive recessed inside ladder tube for protection.
LADDER HOIST - Winch directly driven by heavy duty hydraulic motor through totally enclosed planetary reduction gear. It includes hydraulically operated, totally enclosed disc type brake for holding the load.
POWER SWING WINCHES - Individual, single direct line winches, direct-driven by radial piston hydraulic motors, mounted on the aft end of the ladder. Speed and reverse controls at operator's console.
ELECTRICAL SYSTEM - A 120/240VAC/60 HZ AC internal/external lighting and electrical system is powered by belt driven generator driven from the auxiliary engine.
SPUD AND SPUD WINCHES - Two heavy wall, cylindrical steel spuds are mounted in spud keepers at stern. Spuds designed for single-part wire rope bottom lift, and are raised or lowered by individual single drum winches with free-fall clutches.
WARRANTY - Ellicott warrants its equipment only in accordance with the printed warranty conditions which are normally included in our sales proposals, the latest copy of which will be forwarded promptly on written request. No other warranties are provided.
| Calculated Production Curve |
" DRAGON" Model Series 1870 - 20" (508mm) I.D. Pipeline
(enlargement)
Note: Calculated output curves indicate pumping capability only. In actual practice the material varies from free flowing, easily excavated material to compacted and/or difficult excavations. When used for estimating actual outputs, the nature of the material must be considered. Consult Ellicott for other dredging conditions outside these curves.
BASED UPON |
| MATERIAL IN-SITU S.G. |
2.10 |
| SUCTION PIPE I.D. |
20 in. (508 mm) |
| DISCHARGE PIPELINE I.D. |
18 in. (457 mm) |
| PUMP IMPELLER |
48 in (1219 mm) |
| MAX. PUMP SPEED |
519 RPM |
| MAX. PUMP HP |
1280 HP (956 kw) |
| TERMINAL ELEV. |
10 ft. (3.05 M) |
For material in-situ values other than 2.1, see conversion below.
CONVERSION FOR VARIOUS
IN-SITU S.G. |
| S.G. |
MULTIPLIER |
| 2.10 |
1.00 |
| 2.00 |
1.10 |
| 1.95 |
1.158 |
| 1.90 |
1.222 |
| 1.85 |
1.294 |
| 1.80 |
1.375 |
