Self-contained device for lifting mineral resources from bottom of water area

FIELD: mining engineering.

SUBSTANCE: self-contained device for lifting mineral resources from the bottom of the water area includes a grab bucket made of elastic material, flexible links interconnected with the bucket, a bucket closing mechanism, and an actuating sensor for the flexible cavity located in the lifting section. The bucket surface is made with steel spokes evenly spaced throughout the area. The lifting section is equipped with a protective casing with branch pipes for supplying gas to the flexible cavity, fixed in the casing. Inside the protective casing, along its perimeter, there are evenly located cartridges with an explosive substance and a pyrotechnic relay between them, which are, in turn, interconnected through an electric detonator with an actuating sensor of the flexible cavity. In this case, the lifting section is made in the form of a hemisphere, the upper part of which is provided with a porous material, and the branch pipes are provided with check valves.

EFFECT: increasing the efficiency of mineral extraction from the bottom of the water area.

3 cl, 3 dwg

 



 

Same patents:

FIELD: blasting operations.

SUBSTANCE: device for generating a detonation wave comprises a source of initiating, a main charge of high explosive (HE), a matrix with a network of detonation channels with end sections with the parts located in the extensions in the form of a closed shell of spherical shape or in the form of a hollow cylinder, an inert layer of the material with acoustic stiffness and thickness depending on damping and transmission of the shock wave, a hollow and a composite core. The closed shell with the thickness depending on the critical diameter of detonation of the HE shell comprises a cavity of spherical shape or in the form of a disc with rounded edges.

EFFECT: invention enables to improve the explosive safety of the device in emergency impacts.

9 cl, 4 dwg

FIELD: demolition works.

SUBSTANCE: invention relates to the field of measurement of parameters of operation of initiators of detonation of explosives during the demolition works, namely electric detonators (ED) comprising a nonprime blasting cap (CD) based on brisant explosives (BE) and standard electric igniter (EV) with rigid or elastic fastening of a resistance bridge. The device for measurement of parameters of operation of the nonprime blasting cap in the blasting electric detonator comprises a muffle for blasting of the electric detonator on a lead plate, a unit of resistance bridge actuation by direct or pulse currents, a response time measuring instrument with starting of time reference point from the moment of actuation, the ionisation sensor for registration of detonation, the ionisation sensor for registration of the moment of operation of electric igniter, unit of registration of signals from sensors and supply of signal to the response time measuring instrument.

EFFECT: design of the device allows to provide completely complex measurement of all parameters of operation of the blasting cap of both non-prime, and prime types as a part of the blasting electric detonator, for the first time within one test.

3 cl, 1 dwg, 1 tbl

Initiation device // 2554160

FIELD: demolition works.

SUBSTANCE: initiation device contains a metal housing with two coaxial blind channels divided by indestructible barrier. In one channel the pyrotechnical high-calorific preheating charge, and in another one - a pyrotechnical priming charge is located. The preheating and primer charges are made from pyrotechnical compositions forming solid slags after burning.

EFFECT: improvement of device reliability at inertial actions.

3 cl, 1 dwg

Explosive device // 2553615

FIELD: blasting operations.

SUBSTANCE: invention relates to the field of explosion engineering, containing discrete detonation wave generator (DDWG), and can be used in development of military ammunition, explosive devices for use in economic activities (engineering charges, mining operations, machine engineering, etc.) and scientific -research activities. In the explosive device containing the main explosive charge, DDWG in the form of a matrix of inert material with a network of channels and openings with a general receiving area filled with explosive and coated with a shell, the initiation source, initiating a general receiving area, DDWG comprises a layer of explosive at the side of the main charge. The shell made of heat resistant material comprises through openings covering the groups of openings in the matrix, and drainage channels connecting the openings located in a zone of pressing of DDWG by the elements of housing with a cavity of the structure having connection with the external environment. At that the following conditions are fulfilled: Q<6 g, Q/Sc<2.7 g/mm2, wherein Q is explosive weight in the matrix, attributable to one opening in the shell, Q/Sc is cross-sectional area of the drainage channel. The shell of the explosive device is made of foam-polycarbonate having density of 0.7-0.8 g/cm3.

EFFECT: increase in fire and explosion safety of explosive devices with DDWG due to removal of gaseous decomposition products of explosives beyond DDWG.

2 cl, 1 dwg

Detonating tube // 2544653

FIELD: blasting operations.

SUBSTANCE: invention relates to detonating cords and can be used for accurate in time transfer of detonation to the explosive charges in devices of spherical implosion of explosion. The detonating tube comprises a shell and a charge of high explosive, at that the shell consists of two layers, namely the inner thin-walled layer of a polymer with a melting temperature higher than the melting temperature of the outer thick-walled layer. On the inner surface of the outer layer there are longitudinal, along the axis of the tube of the rib, inclined at an angle to the radius of the tube and the thickness of the ribs less than the wall thickness of the inner layer of the shell. There is vacuum between the layers.

EFFECT: solution provides transmission of detonation from the primary detonator to the secondary detonator, without causing predetonation of the explosive.

1 dwg

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to detonation systems intended for shaping of an explosion wave of the specified shape in an explosive charge or an explosive compound (EC) of decreased sensitivity. A detonation logic device for shaping of an explosion shape includes a housing, in which the primary explosive charge and a matrix from inert material with a network of channels and holes filled with an explosive are arranged. The network of channels has an initiation point; between the matrix and the primary explosive charge there introduced is the second matrix from inert material with a network of channels and holes filled with an explosive, which has its initiation point on one side and initiation channels on the opposite side. Configuration of the network of channels of the second matrix is similar to that of the network of channels of the first matrix and offset relative to it so that a projection of each end point of the network of channels of the first matrix does not coincide with projections of channels of the second matrix. In the first matrix there is a through hole filled with an explosive for use of the initiation point of the second matrix; the second matrix contains through holes filled with an explosive, which coincide with holes from the end points of the network of channels of the first matrix so that the corresponding end points of networks of channels of both matrixes are connected in pairs with initiation channels.

EFFECT: improving actuation reliability.

1 dwg

Explosive device // 2542803

FIELD: weapons and ammunition.

SUBSTANCE: explosive device includes a housing with a cover plate, in which the primary charge of an explosive is arranged, an initiating system including an inlet connector and a cartridge, which are connected via an energy transfer circuit, and a detonator installed in the cartridge. The detonator is arranged so that its detonation outlet is directed to the side that is opposite to the primary charge of the explosive and connected to it with a detonation channel arranged in a removable protective housing. The cover plate has a through hole in which an inlet connector locked with a plug is installed. The protective housing can be fixed in the primary charge of the explosive or on the cover plate. The primary charge of the explosive can be of a multilayered type, and its outer layer is made in the form of a matrix from inert material with a network of channels and holes filled with an explosive. The detonation channel can be branched. The cartridge with the detonator is arranged on the primary charge of the explosive or in the matrix from inert material with a network of channels and holes filled with the explosive.

EFFECT: increasing assembly safety of an explosive device after installation of a detonator onto a charge prior to installation of a special protective element or a cover plate of the housing.

7 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: electric detonating system comprises circuits of electric detonators, each of them consisting of two in series electric detonators and distinguished by the fact that each electric detonator includes external electrode and internal electrode, at that in each circuit of electric detonators their inner electrodes are interconnected and insulated while external electrodes of the first electric detonators in each circuit are jointed and form the first input for connection to power supply source, external electrodes of the second electric detonators in each circuit are jointed and form the second input for connection to power supply source, at that the first and second outputs for connection to power supply source are shunted.

EFFECT: improving safety of use.

3 cl, 2 dwg

Explosive device // 2537358

FIELD: blasting operations.

SUBSTANCE: explosive device comprises a main charge of the explosive agent, a matrix of inert material with a network of channels and holes filled with the explosive agent, the housing elements, the source of initiation, the initiating common receiving section. Above the matrix from the side of the channel the collector is mounted, repeating the shape of the matrix surface, made in the form of a mesh heat-resistant material that provides an outflow of thermal decomposition products of the explosive agent through the structural gaps of the device housing to the external environment. The matrix of inert material has through holes not filled with explosive agent.

EFFECT: increase in fire- and explosion safety.

1 dwg

FIELD: blasting operations.

SUBSTANCE: formation device of blast wave in an explosive charge relates to blasting operations. The device includes the primary explosive charge and a matrix with detonation interconnections. The matrix represents channels filled with an explosive and having a common inlet section; sections located along the matrix surface and end sections located at an angle to the matrix surface. Sections located along the matrix surface have a cross section in the form of an isosceles trapezoid, the smaller base of which is directed to the side of the main explosive charge. Trapezoid inner angle α between the larger base and the lateral side is chosen based on the following: arctg l/t ≤ α ≤ arctg l/tcr, where l - distance between the channels located along the matrix surface and end sections; t - matrix thickness; tcr - critical thickness of explosive channels.

EFFECT: achieving improvement of stable activation of detonation interconnection elements.

2 dwg

FIELD: oil and gas industry.

SUBSTANCE: according to the method upper layer of gas hydrate mass is melted gradually by heating gas hydrate mass in bottom sediments of a water body up to temperature of 50-60°C. Heating is made by a heating element made as blade edge located along diameter of a cargo container lowered from a flotation device. The flotation device is made as a mobile underwater vehicle with retractable tract in the form of a container equipped with blade edge in the bottom part connected to heating elements inside container. Stability of the mobile underwater vehicle is endured in regard to the bottom of the water body. Container is rotated and electric current is supplied to heating elements. Gas hydrate stratum is heated up to 50-60°C. The container is lowered with rotation to the gas hydrate stratum with provision of single-point recovery of hydrates from the above stratum in solid state.

EFFECT: reduced material and operational expenditures and ecological consequences at gas hydrate extraction territory.

2 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: method includes production of gas hydrates, their transportation to a consumer and decomposition of gas hydrates with gas recovery. Gas hydrate recovery process is implemented at thermodynamic parameters corresponding to formation of gas hydrates. Transportation of gas hydrates is performed in sealed and heat insulated cargo spaces of a vehicle at thermodynamic parameters excluding decomposition of gas hydrates. Decomposition of gas hydrates with gas recovery upon completed transportation is made by reduction of pressure in cargo space of a vehicle up to atmospheric pressure. Process of gas hydrate recovery and their storage during transportation is carried out at temperature of -0.2°C and pressure of 1 MPa. At that gas hydrates are withdrawn in hydrate state as briquettes by n-containers run down in sequence to submarine reservoir of gas hydrates from a submarine vehicle. The submarine reservoir of gas hydrates is heated up by heating elements located at edges of n-containers. Each n-container is buried in sequence to submarine reservoir of gas hydrates to the depth twice exceeding the container height. Upon loading of each n-container by free falling of gas hydrates they are loaded to cargo space of a vehicle. The vehicle is made as a submarine vessel. While heating submarine reservoir of gas hydrates only reservoir section under the container is heated. Containers are filled with gas hydrates represented by briquettes of natural metastable mineral in hydrate solid state.

EFFECT: improving efficiency in recovery and transportation of gas hydrates due to reduced consumption of energy and reduced capital and current costs.

2 cl, 1 dwg

FIELD: mining.

SUBSTANCE: method comprises mechanical destruction of seafloor layer by an stripping knife moving along the seafloor, and transportation of destruction products to the surface. The products of destruction are placed in elastic, gas-tight shells, which are collected along the surface and transported them to the place of use in the transportation vessel refrigerators. The combine is a moving platform with a knife for seafloor cleaning with the mounted video camera and the stripping knife under the hole in the platform designed as a horizontally rotating cylinder with the scrapers mounted on it. The platform has two mounted cylinders, the first is a container with shells located horizontally one above another one, and the second one, mounted above the hole, is a loading container in the top side of which the segments with drive mechanisms shifting them from the cylinder axis are located.

EFFECT: improvement of efficiency of ocean production of gas hydrates.

4 cl, 2 dwg

FIELD: mining.

SUBSTANCE: device comprises a clamshell ladle fitted with levers with bosses and flexible links, a sensor, a flexible cavity, a float. The device is also fitted with the vessel designed as a bent cylinder with the tapered extended cylindrical part which is inclined to the opposite side from the self-contained unit and through the frame is interconnected with it. The vessel is fixed on a cable with a possibility of vertical movement. The extended cylindrical part of the vessel is fitted with a sensor interacting with a sensor located in the container under a flexible cavity which is filled with liquid with a specific gravity, less than that of environment. The unloading hole of the extended cylindrical part of the vessel is fitted with the throwing-back tray. The distance from the clamshell ladle centreline to the tray in the thrown-back situation and distance from the lower edge of the clamshell ladle to the tray in the thrown-back situation are determined by the mathematical relations given in the description.

EFFECT: improvement of efficiency of underwater development of minerals.

5 cl, 3 dwg

FIELD: mining.

SUBSTANCE: device comprises a delivery pipe for supply of minerals designed from top to bottom with a bell and a pipeline for coolant supply. The delivery pipe is designed as variable section pipe with formation of alternating cylindrical compartments with inlets and outlets, and the top parts of some compartments are arranged with inclination as cross-lying with reference to other compartments, and the lower parts of compartments are designed conical, interconnected with coolant supply pipelines. Outlets of compartments are located from inlet holes at the distance necessary for passing and maintaining of soil and ice bodies in a suspension provided that: L≥3·dmax, where L - is the distance between inlets and outlets of compartments, dmax - maximum diameter of soil and ice bodies.

EFFECT: improvement of efficiency of production of minerals from continental shelf.

1 dwg

FIELD: mining.

SUBSTANCE: device includes a conveying capacity in the form of a grab bucket provided with levers with thrusts and flexible links, a start sensor located in a container and a flexible cavity. The latter is filled with liquid with a capsule located in it and containing reagents. A capsule throw valve is located at the top of the flexible cavity. Radio beacons are fixed inside the container, on its side walls, and coupling rings are located on the outside. Sodium chloride (3%) and sodium hypochloride (0.3%) are used as reagents.

EFFECT: improving efficiency of operations.

2 cl, 2 dwg

FIELD: mining.

SUBSTANCE: device includes a grab bucket with armoured jaws and flexible links by means of which the bucket is connected to a gas generator and to a flexible cavity start-up sensor, which are located in a container, and a float. The grab bucket is made from elastic material, and a flexible cavity is equipped with a cable located inside the cavity in the centre, the lower end of which is attached to a partition wall additionally installed between a gas generator and the flexible cavity, and the upper end of the cable is attached to the float. As the elastic material of the grab bucket there used is for example thermopolyutherane. The upper edge of the grab bucket is perforated. Armoured jaws of the grab bucket are provided with holes uniformly distributed throughout the surface area. A full air discharge valve is located at the top of the flexible cavity. The float is made in the form of a radio beacon.

EFFECT: improving efficiency of operations.

6 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: system contains at least one modular shaft with the central unit placed under water and an uprise buried to the ocean bottom and at least one air-lock chamber to transport duty shifts of workers, materials and equipment. Besides the system comprises at least one drilling area with a horizontal tunnel branched from the uprise in the central unit, and an inclined area for delivery of drill pipes and a vertical area in which bottom part there is a wellhead of at least one well. A power cable and control systems as well as pipeline in the protective shell for oil and gas transportation are connected to the modular shaft.

EFFECT: increasing development efficiency of subsea oil and gas deposits.

9 cl, 56 dwg

FIELD: mining.

SUBSTANCE: proposed device comprises mineral feed pipe aligned inside hollow pipe with funnel at its bottom, and coolant feed pipeline. Additionally, this device comprises coolant feed pipelines distributed uniformly over hollow pipe perimeter, in funnel walls and in extra struts of said funnel. Hollow pipe is located at the level of funnel strut. Funnel strut inner walls are perforated. At the level of funnel, hollow pipe has vertical cut-outs furnished with plugs from top and bottom. Funnel strut top parts are also equipped with plugs.

EFFECT: continuous mining, lower power consumption and extraction costs, minimised negative effects on contamination of environments.

2 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: method for development of methane hydrates is based on their breaking by water jets at a temperature of more than 285K with the rate more than 1 m/s in a pulse mode with a frequency in the range from 1 up to 200 Hz, gasification and lifting from the seabed. A device for development of methane hydrates contains a floating device, handling equipment, a power generating unit, pipelines, a control unit and an underwater methane hydrate development unit in which body there is an installed infrared heater, a water-jet monitor with pressurised water feed equipment and a gas bleeder.

EFFECT: improvement of energy efficiency for underwater development of methane hydrates and their lifting to the floating device.

2 cl, 1 dwg

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

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