Device for developing nodules

 

The device relates to the field of development of deposits of ferromanganese nodules and phosphorite nodules, and similar sediments of the shelf seas and deep-sea sediments of the ocean floor, which are mostly horizontal and slightly inclined deposits of low power, located on the bottom surface with a relatively small depth (0.5-1.0 m) from its surface. The device contains gruntboy body, priming the pump with suction and discharge nozzles and pressure slurry line connected with the pressure pipe of an underground pump. Pressure slurry line device is equipped with a hydrocyclone with two output sockets, one of which is connected to the hold of the mining ship, and the other is in the gap between the protective cover, ending unloading console, and pressure slurry line, made in the form associated with the cyclone at the top of the vertical pipe. The pipe in the lower part is made in the form of a spiral from an elastic material, made on the outer side and bottom sides of the individual longitudinal trapezoidal plates, facing a large base inside the slurry line, and fastened the outer brackets. The distance between the individual plates NR the rat on the whole technological cycle of extraction and concentration of nodules, the improvement of the ecological situation in the area. 5 Il.

The device relates to the field of development of deposits of iron-manganese nodules (nodule field) and phosphorite nodules (FC), and is similar to the sediments of the shelf seas and deep-sea sediments of the ocean floor, which are mostly horizontal and slightly inclined deposits of low power, located on the bottom surface with a relatively small depth (0.5-1.5 m) above its surface. The predominant use of the device are field ferromanganese nodules and phosphorite nodules.

A device for the production of nodules from the seabed in the form of a self-propelled truck to collect nodules, comprising a frame, track progress, the Executive authority in the form of a drum Ripper with blades on its surface, the protective cover and built into the actuator in the form of water based multi-flow turbine, the power which is provided by flexible tubing from the pump located outside of the truck, the tip-nozzle discharge pipe that is installed to capture the loosened mass of water coming out from under the drum is positive hydraulic losses in the flexible pipe when changing its length, the ambiguous use of crawler due to the low bearing capacity of rocks containing concretions, the necessity to give up in mining or transport vessel total volume of the rock mass and nodules, and enclosing rocks, disturbance ecology due to resuspension of bottom sediments during the development with the formation of clouds of mist considerable size.

A device for the development of nodules containing a frame mounted on it by the Executive body, the actuator and the pressure slurry line and provided with supporting skis, carrying a float attached to the top platform of the frame with the Executive body, made in the form of end cutters-Ripper involute blades located between the two disks, and the lower disk is made with slots that mimics the shape of the blades, with the blades attached to its outer surface and cocostantini in the direction of rotation of the cutter and adjacent to the outer curve of the slots, and the Executive body by means of telescopic hydraulic cylinders connected to the driven gear table, located in engagement with the pinion and drive (patent RF № 2170823, MKI 7 E 21 50/00) adopted for the prototype.

The disadvantage of this device is the overboard water discharge from the pulp on the surface), raised from the bottom of its layer having a lower temperature compared to the temperature of the surface waters, which leads to increased energy consumption during transportation and subsequent enrichment for environmental violations in the discharge of tailings overboard, or placing them on the coastal areas, as well as the dilution of surface water depth to the deterioration of the habitats of marine organisms these horizons water masses.

The objective of the invention is the provision of reducing energy consumption on the whole technological cycle of production and enrichment of Fe-mn deposits when the device is in difficult mining and hydrogeological conditions, improvement of ecological situation in the area and the grant of a mining ship or transport vessels predominantly Fe-mn deposits or FC, leaving the bottom most part of the host rocks and Fe-mn deposits substandard granulometric composition at the greatest possible fulfillment of the requirements of environmental protection and rational use of mineral resources.

The problem is solved in that the device for the development of nodules containing gruntboy body, priming the pump with suction and discharge nozzles and pressure slurry line connected with the pressure pipe of an underground pump Torah connected to the hold of the mining vessel, and the other is in the gap between the protective cover, ending unloading console and pressure slurry line, made in the form associated with the cyclone at the top of the vertical pipe, in which the lower part is made in the form of a spiral from an elastic material, made on the outer side and bottom sides of the individual longitudinal trapezoidal plates, facing a large base inside the slurry line and sealed outer brackets, and the distance between the individual plates on the inside of the helix is smaller than the nodules of commodity composition.

The device illustrated by the drawings, where Fig. 1 shows a section of the front surface of General type device for the development of nodules in Fig. 2 - cross section (a-a) single spiral coil side pressure of the slurry line, Fig. 3 is the side view of a segment of a spiral coil side pressure of the slurry line from the bracket longitudinal plates separating his part, in Fig.4 shows the design of the individual longitudinal plates spiral pressure slurry line with one of the brackets, and Fig. 5 is a General view of the extracted system in conjunction with the inventive device.

Device for developing nodules includes (Fig.1) gruntboy body 1 ASAS 2, segregirovannie with the actuator (the actuator of Fig.1 not shown) to suction line 3 and outlet 4 nozzles, the protective cover 5, enclosing a pressurized slurry line, which includes a spiral portion 6 connected to the discharge pipe 4 ground pump 2, and a vertical pipe 7, connected with dehydrating hydrocyclone 8. The cyclone 8 is made with two output sockets: unloading 9 and pipe 10 to remove water and small particles, which is included in the gap between the vertical pipe 7 pressure slurry line and the protective cover 5. The discharge pipe 9 is connected to the hold of the mining vessel 11. The entire device is mounted on a mining vessel 11. On gruntsgabalam body 1 (Fig. 5) there is a bracket 12 of the traction winch 13 mobile bottom anchor platform 14 through the traction rope 15. The protective cover 5 is transferred to the unloading console 16 to remove water and small particles in the inner blade 17. Mining vessel 11 is anchored in the course of its movement by the cable 18.

The spiral part 6 of the pipeline is made of elastic material and composed on the outer side and bottom sides of the individual longitudinal plates 19 (Fig.2-4) trapezoidal in cross section shape, facing a large base inside the slurry line (Fig.4) its spiral portion 6 (Fig.1) che the external brackets 20 (Fig. 2, 3, 4) with the connecting protruding inside the fixing pins 21. The distance between the individual plates inside the spiral “ l ” is chosen smaller than the nodules of commodity composition.

The device operates as follows. With mining vessel 11 it is lowered to the level of the roof nodule deposits (in transport position, it is located obliquely or horizontally, like an arrow with grantsalert.com conventional dredger) and when the soil pump 2 is the introduction of scattering to a predetermined depth. For example, for Fe-mn deposits deposits of the Baltic sea productive layer deposits on the recessed areas subject to excavation, 8-10 cm (with a total capacity of a Deposit - 50 cm). Then moves mining vessel 11 on the cable 18 (Fig.5) with simultaneous tightening of the entire device traction winch 13 bottom anchor platform 14 in the course of the strip deposits nodule field of given width and power.

Initially, the slurry centrifugal sand pump 2 (Fig.1) is served in the spiral part 6 of the pressure of the slurry line. In it due to centrifugal forces and gravity is the removal of nonconforming Fe-mn deposits and sandy-clay particles of the host rocks (shaded nodule field) through the longitudinal drink part of the pressure of the slurry line in the form of longitudinal plates without cross vs mesh design minimizes pereselenie fragile (100 kPa) Fe-mn deposits in the process of transporting a pressurized stream of the mining ship through dewatering hydrocyclone. External, on the retaining pins 21 (Fig.4) the location of the mounting brackets 20 does not violate the hydrodynamics of the process of pulp in spiral slurry line, and not obstructing the removal of the fine fraction of spiral slurry line. Trapezoidal longitudinal cross-section of the plate 19 prevents sticking between individual nodules or particles of the host rocks that have passed between the plates.

The length of the spiral part 6 of the pressure of the slurry line is calculated so that when the actual granulometric composition of Fe-mn deposits and host rocks, as well as their percentage in the process of moving him to a pulp was the maximum possible enrichment of Fe-mn deposits. When this spiral part 6 of the pressure of the slurry line is made of stretch elastic material, for example PVC skin or vinyl plastic, which allows the spiral at work a few to move apart (Fig. 5 in comparison with Fig. 1) and offset (along with standard joints pitching of the vessel, through which is attached to the vessel claimed device) vertical shifts of the entire mining system with adequate quality testing deposits of Fe-mn deposits and reduce losses of the rock mass.

Next, the slurry containing mainly trade nodule field served (Fig.1) Vert them through the discharge pipe 9 into the hold of the mining vessel 11. Water and abraded particles centrifugal pump and hydrocyclone 8 (Fig. 1, 5, not shown) is pumped into the vertical cylindrical portion of the protective casing 5 through the pipe 10.

Thus, the fine fraction isolated from the flow of pulp in the spiral part 6 of the pressure of the slurry line (Fig.1), and fine silt fraction allocated in the hydrocyclone 8, are fed through the discharge console 16 in the inner blade 17 - stope underwater career.

During operation of the device due to the design pressure of the spiral slurry line of circular cross section with side slit (external) and bottom walls above the level of the reservoir rises and then reloaded into the hold of the mining ship mainly minerals - Fe-mn deposits a specified composition, and most of the host rocks and the fine fraction of Fe-mn deposits are allocated at the stage of transportation of the pulp in the spiral part of the pressure of the slurry line and finally removed in the dewatering hydrocyclone, and all waste received in the inner blade, moving inside a protective casing, that ensures minimal contamination of water masses around the proposed device and preventing in the upper layers of the water volume of the lower layers from the Pont is eemov.

Claims

Device for developing nodules containing gruntboy body, priming the pump with suction and discharge nozzles and pressure slurry line connected with the pressure pipe of an underground pump, wherein the pressure slurry line device is equipped with a hydrocyclone with two output sockets, one of which is connected to the hold of the mining ship, and the other is in the gap between the protective cover, ending unloading console, and pressure slurry line, made in the form associated with the cyclone at the top of the vertical pipe, in which the lower part is made in the form of a spiral from an elastic material, compiled by the external lateral and bottom sides of the individual longitudinal trapezoidal plates, facing a large base inside the slurry line, and sealed outer brackets, and the distance between the individual plates on the inside of the helix is smaller than the nodules of commodity composition.

 

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EFFECT: higher effectiveness and productiveness.

3 dwg

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