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:

Performance

500

m³/h

The height of the water column

30

m

Performance dry residue (nominal)

80

m³/h

Performance dry residue (max)

120

m³/h

Power pump for pumping pulp

90

kW

Powerpoint

154

kW

Length of pipeline (maximum)

800

m

The depth of the development (maximum)

0.4

m

The depth of the development (maximum)

10

m

Diameter of the solid particles (max)

70

mm

The diameter of pipeline

225

mm

Specifications:

The length of the dredger

10

m

The width of the dredge

2.4

m

Overall width with pontoons

3.9

m

The height of the dredger

3

m

Weight dredger

10

ton

On-board power supply

12/24

V

Installed equipment:

Engine 154 kW (Marine Engine)

1

pcs

GRT-500/30 Pump *

1

pcs

Active cutter (higher efficiency for light soil)

1

pcs

The auxiliary pump (ejector) 50 m³ / hour feed at the head of 70 m

1

pcs

Fixing the dredger in the workplace anchor hydraulic winch