Device for extraction of nodules from the seabed

 

The invention relates to a device for the production of nodules from the seabed during their transportation through the pressure pipe to the base ship. In the device for extraction of nodules from the seabed, which includes a floating production unit with a suction device and pulponasosnoj, discharge pipe, perforated pipe with holes smaller than the minimum size of the extracted nodules, perforated pipe placed in the adjacent mining unit area discharge pipe and provided with flanges. The diameter of the perforated pipe is reduced in the direction from the mining unit speed. The flange of each section of smaller diameter are made on the inner perimeter with a conical bevel in the direction of smaller diameter perforated pipe. The invention allows to significantly reduce the energy intensity of transportation nodules to reduce the installed capacity of the power plant, to reduce the diameter, the intensity and cost of the penstock, to improve the environmental situation in the area of nodule mining, to simplify the manufacture of the perforated pipe of variable cross-section. 1 C.p. f-crystals, 3 ill.

From what aprovado to the base ship.

A device for dehydration, which can be used in the extraction of nodules from the seabed, made in the form of a pipe with slotted perforations to ensure output of the cavity of the excess water, and the tube is in the form of a truncated cone and has a variable cross-sectional area to decrease this square aside from pulmonalis, which feeds the pulp.with. The USSR No. 70384, 1948).

However, the drawbacks are the inability to specify and predict the degree of dehydration of the pulp, the impossibility of making a tapered pipe of sufficient length and change settings dewatering and desliming of the pulp during operation of the device.

A device for the production of nodules from the seabed (prototype), including basic vessel, a movable bottom unit with intake device, discharge pipe, while the suction device Assembly has a housing in the form of a perforated pipe that provides transportation nodules in the desliming of the pulp, and the size of the holes of the perforated part of the pipe passed less than the minimum size of the extracted nodules.with. The USSR № 1761957, CL. E 21 50/00, 1992).

Not lpy before it is transported through the pressure pipe to the base ship, as well as the inability to achieve the specified degree of dewatering of the pulp.

Objectives of the invention are to provide simultaneous dewatering and desliming of the pulp at a given degree of dehydration.

The tasks are solved due to the fact that the device for the extraction of nodules from the seabed, which includes a floating production unit with a suction device and pulponasosnoj, discharge pipe, perforated pipe with holes smaller than the minimum size of the extracted nodules, perforated pipe placed in the adjacent mining unit area discharge pipe and provided with flanges, the diameter of the perforated pipe is reduced in the direction from the mining unit speed, and the flange of each section of smaller diameter are made on the inner perimeter with a conical bevel in the direction of smaller diameter perforated pipe. The size of the holes on the surface of the perforated pipe may be adopted for various sections of different diameter with a gradual decrease in the size of the holes in the transition to the area of the perforated pipe of smaller diameter.

Device for the production concret tapentadol form; in Fig.3 - flange connection of adjacent sections of the stepped pipe.

Device for extraction of nodules from the seabed consists (Fig.1) of the watercraft 1, the mining unit 2 with intake device and pulponasosnoj, the discharge pipe 3 and the perforated pipe 4 with hole sizes smaller than the minimum size of the extracted nodules. Perforated pipe 4 is placed in the adjacent mining unit 2 plot the discharge pipe 3. The diameter D of the perforated pipe 4 is reduced in the direction from the mining unit 2 stage (see Fig.2), taking the values of D1D2D3and so on, the Minimum diameter of the last section, for example, D3and the total length of all sections determine the degree of thickening and desliming of the pulp coming from the mining unit 2.

Sections 5, 6, 7 (and so on) pipe of different diameter are connected by flanges (see Fig.3) 8 and 9. Moreover, the flange 9 of each smaller diameter is made on the inner perimeter with a conical bevel 10 in the direction of smaller diameter.

All the sections 5, 6, 7, etc. of pipe perforated by holes 11. The dimensions of the holes 11 PA surface of the pipe can be taken the same or different (d1

Device for extraction of nodules from the seabed operates as follows. When moving the unit on the seabed 12 watered pulp containing nodules under pressure is fed into the perforated pipe 4. Due to excess pressure, excess water with the sludge discharged through the openings 11 in sections 5, 6, 7 of the socket. Depending on the values of the maximum and minimum diameters of the sections of pipe (D1/D2) and total length of sites provide almost any desired concentration of the slurry in the pressure pipe 3, and the excess water and sludge particles remain in the bottom area 12.

If you want to change the consistency of the pulp in the pressure pipe 3 sections 5, 6, 7 of the socket can be replaced by others with different parameters on the diameter and the length.

Execution of each flange of smaller diameter 9 on its inner perimeter with a conical bevel 10 provides a reduction of hydraulic losses and reduce energy consumption for transportation of pulp.

Features of the invention can significantly reduce the energy intensity of transportation nodules to reduce the installed capacity of the power plant area of nodule mining, to simplify the manufacture of the perforated pipe of variable cross-section.

Claims

1. Device for extraction of nodules from the seabed, including floating production unit with a suction device and pulponasosnoj, discharge pipe, perforated pipe with holes smaller than the minimum size of the extracted nodules, characterized in that the perforated pipe placed in the adjacent mining unit area discharge pipe and provided with flanges, the diameter of the perforated pipe is reduced in the direction from the mining unit speed, and the flange of each section of smaller diameter are made on the inner perimeter with a conical bevel in the direction of smaller diameter perforated pipe.

2. The device under item 1, characterized in that the hole sizes on the surface of the perforated pipe taken for various sections of different diameter with a gradual decrease in the size of the holes in the transition to the area of the perforated pipe of smaller diameter.

 

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The invention relates to a device for the production of nodules from the seabed and their transportation through the pressure pipe to the base ship

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FIELD: mining industry.

SUBSTANCE: device has bottom power assembly, connected to base watercraft by force pipeline with conical perforated portion, adjacent to bottom power assembly, conical perforated portion of force pipeline is made of sheet of elastic material and provided with rigid branch pipes with flanges on both ends. Flanges of branch pipes are interconnected by round-link chains placed along flanges perimeter, which are connected to flanges of power assembly and force pipeline branch pipe.

EFFECT: simplified construction, lower costs, higher efficiency.

4 cl, 4 dwg

FIELD: mining industry.

SUBSTANCE: mining combine has extraction means, on which a body is mounted, having at least one first liquid outlet, for supplying liquid to material. Pipeline, through which liquid is fed to first liquid outlet, contains means for measuring flow and/or pressure of liquid in pipeline, for determining, in which of to layers outlet is positioned. Combine can have at least one second liquid outlet, placed in such a way, that first liquid outlet is in lower layer, and second liquid outlet is placed in upper layer. First liquid outlet can have one of multiple first liquid outlets spaced from each other, and second liquid outlet - one of multiple spaced from each other second liquid outlets. Efficiency of liquid flow through multiple spaced first outlets can surpass those of multiple spaced from each other second liquid outlets. Placement of second liquid outlet in separate body cover is possible. First and second liquid outlets can be directed downwardly relatively to direction of mining combine displacement. Method for controlling depth of position of mining combine extraction means includes placing two liquid outlets, interacting with material extraction means, in a material, while second liquid outlet is placed above first liquid outlet, liquid is fed to first and second liquid outlets and flow and/or pressure of liquid is measured. Layer, wherein liquid outlet lies, is detected, and first liquid outlet is placed in lower layer and second liquid outlet is placed in upper layer, to determine depth of position of extraction means relatively to two layers.

EFFECT: higher precision.

2 cl, 9 dwg

FIELD: means for organic and chemical fertilizers obtaining, particularly to extract sapropel silt from lake and lagoon bottom and for water ponds cleaning.

SUBSTANCE: device comprises water-craft with executive tool and with extraction tool of suction type, transportation mechanism and optional equipment. Executive tool comprises turbofan, bell-shaped case with serrated lower edge and at least two pipelines mounted in the case and used for feeding compressed air and driving extraction tool. Optional equipment includes hoisting means and seriously connected accumulator vessel, bin, sump, evaporator, disperser, pelletizer, drying chamber, metering device and transportation mechanism.

EFFECT: reduced sapropel mass losses, reduced time of sapropel preparation to use.

13 dwg

FIELD: technologies for extracting concretions from sea bottom.

SUBSTANCE: complex has watercraft, extracting machine with take-in device and pulp-pump, supporting pipeline, perforated branch pipe with sizes of apertures less than minimal size of extracted concretions. Perforated branch pipe is positioned at portion of force pipeline adjacent to extracting machine, and is provided with flanges. Apertures of perforated branch pipe are made in form of multi-drive slit channels along whole length of perforated branch pipe, provided with bandages. Slit channels can be made in form of constant width and directed along generatrix lines of perforated branch pipe, and bandages are positioned in direction perpendicular relatively to perorated branch pipe. Slit channels can be made in form of portions serially positioned behind one another and expanding towards movement of hydraulic mixture. Slit channels can be made of spiral shape, an bandages - in form of longitudinal rods.

EFFECT: higher efficiency.

4 cl, 4 dwg

FIELD: technologies for extracting concretions from sea bottom.

SUBSTANCE: device has watercraft, extracting device with collecting means and pulp-pump, force pipeline, perforated branch pipe with sizes of opening less than minimal size of extracted concretions. Perforated branch pipe is positioned in portion of force pipeline adjacent to extracting device and is provided with flanges, and diameter of perforated branch pipe decreases away from extracting machine. Extracting machine is provided with additional pump with latch, mounted in parallel with pulp-pump of extracting machine, and between perforated branch pipe and force pipeline check valve is positioned.

EFFECT: higher efficiency.

2 dwg

FIELD: mining industry, particularly for obtaining minerals from underwater.

SUBSTANCE: plant comprises frame carried by catamaran, drum reels secured to frame at different levels and provided with driving means. Arranged in lower frame base is vessel having chute in which auger is installed. The auger is provided with drive. Frame drums are connected to truck through endless chains to which buckets are hinged. Load cavities of the buckets have orifice arranged from end side thereof and adapted to remove water when buckets move over water surface. Lower bases of the buckets are connected with chains through flexible rods and maintain vertical positions of loads arranged on chains when chain inclination varies. Plant also has compressor connected to float chambers of the buckets by flexible armored tube secured to electric winch rope and by spring. Electric winch is linked with microswitches by electric circuit. Microswitches are adapted to automatically bring electric winch into electric circuit during bucket movement. Catamaran is connected to truck platform through ropes of the winch connected to ship and adapted to lower or lift the truck from ocean bottom. Electric drives of the winches are linked with switch buttons of control panel, which provides remote winch control. Installed in catamaran body are devices to separate concretion mass into fraction and to dehydrate thereof. The devices are made as rotary netted drums with different orifice diameters. The drums are coaxial and spaced apart one from another. Each drum is provided with receiving chamber, drive and fraction outlet. Each fraction outlet is connected to centrifugal means having drive. In accordance to the second embodiment plant has case including three or more frames arranged in staggered order in two rows and centrifugal means. The plant is made as trailed unit and may be unitized with ship. The case is provided with floating pontoon supports. Each pontoon support is connected to compressor and has electromagnetic valve so that the support may immerse the case at proper depth in stormy conditions and emerge thereof after storm termination. Two longitudinal vessels provided with chutes are connected to each frame. Installed in chutes are augers with drives. Shafts with drum reels and drives are secured from both vessel sides at different levels thereof. The drums are provided with endless chains to which buckets are hinged. In accordance with the third embodiment the plant comprises case having three or more frames. The frames are arranged in one or two rows and connected one to another. One longitudinal vessel in secured to each frame. The vessel is provided with chute in which auger with drive is installed. The plant also has case installed on truck, which is mounted on ocean bottom. Conveying wedge-like mechanism is fixedly secured in front of conveyers under truck platform. The wedge-like mechanism is movably installed between drum reels to shift concretion layer from two sides towards bunker bucket loading means.

EFFECT: increased capacity, reliability and durability, improved technical means, workmanship and extended technological capabilities.

3 cl, 16 dwg

FIELD: obtaining minerals from underwater, particularly hydro-mechanized devices for concretion production from seabed.

SUBSTANCE: device comprises movable seabed unit with pulp pump and outlet pipe, pressure pipeline with perforated part, basic ship and connection flanges. The perforated part is formed of parallel pipes connected with outlet pipe of the pulp pump and with pressure pipeline by distribution pipes. Number of pipes and pipe diameter are determined from where D1 is diameter of outlet pulp pump pipe, D2 and n - diameter and number of pipes composing perforated part of pressure pipeline.

EFFECT: increased productivity.

5 dwg

FIELD: rock mining, particularly to develop gravel-sand deposits.

SUBSTANCE: rid comprises body made as U-shaped pontoon and having docking mechanism, which provides connection of similar pontoon sections to maintain floatability thereof in the case of suction head weight increasing. The rig also has suction head made as downhole hydraulic mining tool and having ground receiving means and portal crane for ground receiver lifting and lowering arranged in front pontoon part. The ground receiver is lifted and lowered by suction head rotation about axle arranged in central pontoon part. The rig also has sludge line connected to suction head.

EFFECT: possibility of mining work performing at variable development depth.

4 dwg

FIELD: mining, particularly to produce ore and rock materials, for instance building materials.

SUBSTANCE: mining rig comprises pontoon with suction head having sludge receiving means, as well as crane for sludge receiving means lifting and lowering installed in front pontoon part. Sludge receiving means is lifted and lowered by suction head rotation about axle connected to pontoon. Rig comprises sludge line connected to sludge channel of suction head. The pontoon has U-shaped cross-section and is provided with additional crane arranged in rear part thereof. The suction head is made as downhole hydraulic tool having string composed of two parts in length direction. The parts are pivotally connected one to another. The string is arranged on pontoon so that the parts may be lowered in series. The cranes are portal. The axle is located in rear or front pontoon part.

EFFECT: possibility of mining work performing at variable development depth.

2 dwg

FIELD: methods to develop underwater and flooded ferromanganesian concretion and phosphate shelf concretion deposits, as well as similar flooded and marine deposits mainly including horizontal and flat thin seams located on bed surface.

SUBSTANCE: draghead comprises frame body with upper, lower, side and rear walls, suction pipe of suction dredge, blades secured to intermediate bottom, which may rotate in vertical plane. The draghead is also provided with hydraulic abrasing unit having pressure pipe transversal to upper frame body wall. The pressure pipe is provided with hydraulic heads. The draghead comprises ball-and-socket hinge arranged in upper frame body orifice. Upper horizontal edge of rounded side wall is connected to inner surface of upper wall. Side wall flat part height and rounded part height thereof are related as 1:0.5. Ball-and-socket hinge and rounded part of side frame body have curvature radii in plane view equal to active suction dredge suction radius. Intermediate bottom is installed inside rounded side wall of frame body and may rotate with the use of two hydraulic cylinders about horizontal pin secured to rounded part of side frame body wall.

EFFECT: simplified structure and reduced losses in sludge lines.

7 dwg

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