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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:
| 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 | 75 | kW |
| Main engine | 132 | kW |
| Length of pipeline (maximum) | 700 | m |
| The depth of the development (maximum) | 0.4 | m |
| The depth of the development (maximum) | 8 | 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 132 kW (Marine Engine) | 1 | pcs |
| GRK-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 | 3 | pcs |
| Anchor | 3 | pcs |
| Cutter actuator (hydraulic motor) | 1 | pcs |
| Fuel tank 500 l | 1 | pcs |
| Batteries (200 A / h) | 2 | pcs |
The model is more profitable and economical, see here.
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