Dredger ADST 400-MC (designation for river-sea conditions) NEW DEVELOPMENT 2024 YEAR
Dredger ADST 400-MC (designation for river-sea conditions) NEW DEVELOPMENT 2024 YEAR
Manufacturer: EPOS PJSC
Available
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Description :
In 2024, our company developed and manufactured a new line of dredges, the design of which allows working in sea-river conditions.
This dredge has certificate of conformity issued by Bureau Veritas Ukraine.
|
Technical details |
Value |
|
Capacity by pulp, m3/h |
360 |
|
Water column head, m |
30 |
|
Maximum dredging depth, m |
up to 20 |
|
Minimum dredging depth, m |
1,5 |
|
Group of dredged soil is the highest |
3 |
|
Dredging pump, type |
Submersible sand pump CRM |
|
Drive power of the dredging pump, kW |
75 |
|
Horizontal pulp discharge distance, m |
up to 250 (depending on technological conditions) |
|
Average capacity by solid material, m3/h |
140 (depends of the type of material being pumped) |
|
Ground ripping |
hydraulic |
|
Hydraulic ripper pump, type |
Centrifugal MEC A 3/65A “Caprari” Italy |
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Hydraulic ripper pump characteristics: - capacity, m - head, m - power, kW |
100 80 37 |
|
Dredger working travel |
Anchor-rope |
|
Swingwinch: - type - hoisting capacity, ton-force - drive power, kW - rope capacity, m - quantity, piece |
LEK 1,5-200 1,5 2,2 200 4 |
|
Dredging pump boom hoisting-sinking mechanism: - type - hoisting capacity, ton-force - rope capacity, m - drive power, kW |
Winch LEP 5-60 5 60 7,5 |
|
Installed dredger power, kW |
145 |
|
Mains voltage characteristic, V Hz |
400 50 3-phase |
|
Power supply: - type -placement - active power, kW |
Diesel generator power plant On the central pontoon 160 |
|
Nominal diameter of the floating slurry pipeline, mm |
200 |
|
Service personnel, persons |
2 |
|
Overall dimensions of the dredger |
|
|
Maximum length, m |
14,73 |
|
Width, m |
5,67 |
|
Height, m |
8,5 |
|
Total height of the board, m |
1,5 |
|
Mean draught, m |
0,5 |
|
Water displacement, t |
36,0 |
It is possible to install a different brand of the pump with the manufacturer’s approval:
|
Technical details |
Value |
|
Pump weight max. Kg |
2200 kg |
|
Pump height not more than, mm |
1900 |
|
Pump power not more than kW |
75 |
DREDGER SET
1. Floating base (trimaran) – hull:
- side pontoons – 2 pieces;
- central pontoon – 1 piece;
- traverse with cross beam with block system for vertical pump movement;
- breastrail, safety railings, lightning protection mast.
The pontoons are made of profiled and sheet steel min 7 mm. The structure is reinforced with stiffening ribs. Mobility and at the same time rigidity and reliability of the construction are achieved due to the complex architecture of the dredger inner parts, which allows for easy assembly, disassembly and transportation of the dredger by standard road transport to new mining sites. Our dredgers are built using shipbuilding steel, which is strictly regulated by shipbuilding standards.
The hull is painted using a special airless coating method with shipbuilding enamels, paint system: “Wilckens Eposist 2000”, thick anti-corrosion coating based on special epoxy resin. The coating is applied to the structure in two or three layers, depending on the operating conditions. Excellent resistance to moisture, weather and mechanical stress. Application area: shipbuilding, ship repair, industrial facilities, for application on pipelines, steel structures including oil refineries. Standard certificate Germanischer Lloyd (GL-KORR 1039 HH 1).
These construction and new technologies make it possible to extend the service life of the equipment to 20 years or more.
2. Submersible dredging pump unit:
- submersible dredge pump CRM, Aurum Pumpen GmbH, with power cable;
- slurry capacity – 360 m3/hour;
- water column head – 30 m;
- pumped slurry density – 1,35 kg/dm3;
- maximum solid size – 60 mm;
- installed motor power – 75 kW;
- rotation speed – 740 rpm;
- medium solid capacity – 140 m3/h;
- materials: casing, flow part – wear-resistant chromium-nickel alloy HRB 630;
- electric motor – submersible monoblock;
- power – 75 kW;
- voltage – 400V;
- speed – 740 rpm;
- service factor – 1.35.
(Pump cable characteristics: grade H07RN-F, minimum cable bend radius: 12,5 x D, temperature range: -25 to +60 0C, voltage: U0/U – 450/750 V, flexibility class: 5).
3. Electric power plant:
- AC diesel generator station, 220kVA;
- standby power – 176 kW;
- prime power – 160 kW;
- voltage – 230 – 400 V;
- current frequency – 50 Hz;
- diesel engine, with water cooling system;
- number of cylinders – 6;
- Displacement – 6,7 l;
- nominal speed – 1500 rpm;
- fuel consumption at 80% load – 34 l/hour;
- frame – on vibrating supports;
- control panel – lateral location with the diesel generator panel located in the operator’s cabin.
The diesel generator is located in a special ventilated, noise-absorbing cover.
4. Hydraulic jet system:
- The cantilever centrifugal pump МEC-A3/65A “Caprari” (Italy) is complete with check valve and filter system, pressure line consisting of piping and pressure rubber fabric hose with shut-off and control valves;
- capacity – 100 m3/hour;
- head – 8 bar;
- motor power – 37 kW;
- rotation speed – 2950 rpm;
- delivery pipe – DN65;
- weight of the pump unit – 420 kg;
- jetting device with fastening on the dredging pump;
- ring pipe with hydro nozzles.
5. Vertical movement device for the dredging pump:
- electric planetary winch – LEP 5-60;
- hoisting capacity G=5,0 ts;
- rope capacity – 60 m;
- power 7.5 kW;
- rope speed 0.1 m/s – frequency controlled;
- block system on traverse beam with hook link.
6. Shunting and schwingwinde winches:
- quantity – 4 pcs;
- electric bevel spur winch – LEK 1,5-200;
- hoisting capacity – 1.5 tf;
- drive power – 2,2 kW;
- rope capacity – 200m.
7. Operator’s cabin with control panel:
- The bagermeister’s cabin is located on the central pontoon;
- Control panel: light and sound indication of status; swingwinch control; lifting winch control to move the submersible dredging pump – joystick (stepless control);
- Pump control: Consumption current – arrow ammeter;
Pressure in the pressure line – electrical sensor.
8. Electrical and automation system:
- dredge pump motor start system – frequency control with soft starter;
- lifting winch control – frequency control;
- pump of jet system – direct start 400V;
- swingwinches – direct start 400V;
- main switchboard – metal cabinet, IP21;
- a disconnector of a power supply 3ph, 400V;
- power lines of AC 400/230V are powered from the main distribution board through contact and relay groups and protected by circuit breakers and/or fuses;
- control of dredger consumption current;
- control of input voltage (phase, linear);
- network parameter analyzer;
- automated dredger control system based on industrial logic controller (PLC);
- control circuits of AC 230V consumers (galvanic isolation);
- control and signaling circuits – AC24V,;
- sockets for connection of a portable electric equipment – 220 V;
- lighting – searchlight LEED 230V;
- the control of resistance of isolation of the submersible pump at start – the control device;
- the device of protection against pulse repressure (lightning protection);
- pulse overvoltage protector;
- emergency lighting – DC12V, battery;
- electronic control sensor of bank presence (inclinometer);
- sensors of the alarm system of presence of water in holds.
Electrical part of the dredge is built according to the latest developments of the world leaders with the use of industrial controllers, frequency converters as well as power equipment of leading world manufacturers (Siemens, ABB, Mitsubishi …) Operation with the logical controller allows maximum efficient usage of the equipment potential, minimize the human factor and also reduce the number of maintenance personnel.
The safety of the dredger’s operation has also been given serious consideration. The mechanical design incorporates all standards and requirements of the Shipbuilding section, such as the monitoring of roll (inclinometer) and the presence of water in the sealed bilges with the transmission of alarm information directly to the control panel. It is also equipped with electric shock protection and lightning protection system (surge protector).
9. Pressure piping system:
- Abrasion-resistant rubber fabric hose DN200, Italian production, pressure-suction hose for the dredge pump – according to the maximum immersion depth with a protective device for a safe bending radius of the first section of the pressure hose of the dredge pump and floats (floats of the slurry pipeline are made of polyethylene by rotational molding). Operating temperature from -40°C to +60°C, resistant to UV radiation. The slurry float model will be filled with special foam, which provides additional strength and unsinkability and prevents the float from deforming under the influence of ice. The floats can be strapped with cable ties, clamps, straps, or polypropylene tape (included). They do not require additional service (painting, drying, etc.).
- Transition abrasion resistant rubber fabric hose DN200 from ship’s stern to main pressure pipeline – 4m.
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