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Economic indicators:
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) | 1 pc |
| Pump GrT 400/20 | 1 pc |
| The auxiliary pump (ejector) 90 m / h cubic | 1 pc |
| Hydraulic cylinder main suction lift | 2 pcs |
| Hydraulic winch | 3 pcs |
| Fuel tank 500 l | 1 pc |
| Hydraulic fluid tank 50 l | 1 pc |
| Batteries (100 A / h) | 2 pcs |
The model is more profitable and economical, see here.
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