Provided that the pipe length is 200 m, and the usual geodetic rise is not more than 5 m, this model produces a nominally 40 cubic meters per hour and 400 cubic meters per 10 hours. Sand’s density is 1.3 tonnes per cubic meter, the weight of the extracted sand is 520 tons. extracting Cost 520 tons of sand will be 600 kWh for 10 hours. Nominal diesel fuel consumption for 10 hours is 600 kW x 0.226 l / kW = 135.6 liters. From this calculation, we conclude that to extract 520 tons of sand necessary to 136.6 liters of diesel fuel. production cost of one ton of sand is 136.6 liters / 520 tons = 0.26 liters per tonne.

General characteristics:

General characteristics:

Performance

400 m³ / h

The height of the water column

20 m

Performance dry residue (nominal)

60 m³ / h

Performance dry residue (max)

100 m³ / h

Power pump for pumping slurry (nominally)

60 kWh

Power plant, diesel engine Ricardo

110 kWh

Length of pipeline (maximum)

400 m

The depth of development (at least)

0,4 m

The depth of the development (maximum)

8 m

Diameter of the solid particles (max)

70 mm

The diameter of pipeline

200 mm

Specifications:

The length of the pontoon dredger

10 m

Total length

13,5 m

The width of the dredge

2.4 m

Overall width with pontoons

4. m

The height of the dredger

3,2 m

Weight dredger

9 tonnes

On-board power supply

12/24 Volts

Installed equipment:

The engine Ricardo Marine Engine 110 kW (specific FLOW 210-230 g / kW hr)