The DRW-1600/50 dredger and the GRAT 1600/25 pump is designed for use in mining and processing plants, mining and metallurgical plants, thermal power plants, cement plants, diamond mining and gold mining enterprises, technological lines for crushing, mineral processing and similar industries.
Economic indicators
Provided that the length of the pipeline is 200 meters, and the usual geodetic elevator does not exceed 5 meters, this model nominally produces 240 cubic meters per hour or 2,400 cubic meters per 10 hours of operation.The density of sand is 1.3 tons per cubic meter, weight The extracted sand is 3120 tons. The cost of extracting 3120 tons of sand will be 2000 kWh in 10 hours. The nominal consumption of diesel fuel for 10 hours of operation is 2000 kW x 0.226 l/kW = 452 liters. From this calculation we conclude: To extract 3120 tons of sand, 452 liters of diesel fuel is needed. The cost of producing one ton of sand is 452 liters/3120 tons = 0.145 liters per ton.
General characteristics
| Productivity | 1600 | m³/h |
| The height of the water column | 25 | m |
| Productivity dry residue (nominal) | 240 | m³/h |
| Productivity dry residue (max) | 480 | m³/h |
| Power pump for pumping pulp | 200 | kW |
| Powerpoint | 290 | kW |
| Pulp transport length (nominal) | 400 | mm |
| The depth of the development (minimum) | 0,4 | m |
| The depth of the development (maximum) | 12 | m |
| Diameter solids (max) | 200 | mm |
| Diameter pressurized slurry pipeline | 350 | mm |
| Area of use | River |
Specifications
| The length of the dredger | 20 | m |
| The width of the dredge | 2.4 | m |
| Overall width with pontoons | 8 | m |
| The height of the dredger | 4 | m |
| Weight dredger | 18 | ton |
| Internal supply | 12 | V |
| Outdoor supply | 12 | V |
| Onboard power supply | 12/24 | V |
Installed Hardware
| Engine 300 kW (specific consumption of diesel fuel 200 g/kWh) | 1 | pcs |
| Pump GRT-900/67* | 1 | pcs |
| Active milling cutter (increased productivity for light soil) | 1 | pcs |
| Auxiliary pump (ejector) 33 m/cube per hour feed at a head of 70 m | 1 | pcs |
| Reversible propeller 35 kW (dredger drive drive) | 2 | pcs |
| Hydraulic motion control | 1 | pcs |
| Hydraulic cylinder lifting main suction pipe | 2 | pcs |
| Anchor piles (length 8 meters) | 2 | pcs |
| Fixing of the dredger at the work site of the anchor, hydraulic winches | 3 | pcs |
| Anchors | 3 | pcs |
| The drive of the main pump GRT 1600/25 (hydraulic motor) | 1 | pcs |
| Drive of a milling cutter (hydraulic motor) | 1 | pcs |
| Floating slurry pipeline D-500 mm | 100 | m |
| Auxiliary crane-beam | 1 | pcs |
| Fuel tank 2000 liters | 1 | pcs |
| Technical water tank 1000 liters | 1 | pcs |
| The battery (200 А/h) | 2 | pcs |
* – Pump GRT – centrifugal, horizontal, cantilever, single-stage, impeller with axial supply of hydraulic mixtures, are used for pumping highly abrasive slurries with pH 6-12, density up to 2200 kg/m3, temperature from +5 to +70 ° C, with solids content not more than 40% by volume, average size 6-12 mm and microhardness up to 11000 MPa. “GR”-pump type (ground with an axial inlet), “T”-accurate part with internal casing, water productivity 900 m3/hour, 67 water head meters.
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