Method for starting and stopping of offshore airlift and system for its implementation

FIELD: mining.

SUBSTANCE: group of inventions relates to mechanical engineering and can be used directly in development of subsea mineral deposits, where mineral components are pumped out by airlift. Method for starting and stopping of offshore airlift, where starting process includes compressed air supply via pressure pipeline from compressor to mixer of lifting pipe, while stopping process includes stopping of compressed air supply via pressure pipeline from compressor to mixer of lifting pipe, compressed air supply from compressor to upper part of said offshore airlift's lifting pipe and its discharging to atmosphere, as well as compressor stopping. In the course of offshore airlift starting process amount of sea water supply to lifting pipe of offshore airlift is pre-defined, connection between upper part of lifting pipe and atmosphere is closed, compressed air is supplied into upper part of lifting pipe of offshore airlift, sea water is displaced from lifting pipe to ocean through connecting pipe, compressed air supply into upper part of lifting pipe is stopped after the required air pressure in said pipe is achieved, connection of lifting pipe with ocean through connecting pipe is closed, connection between upper part of lifting pipe with atmosphere is restored with simultaneous supply of compressed air into mixer of lifting pipe. After that, connection between lifting pipe and ocean is provided through connecting pipe, amount of sea water supplied into lifting pipe is monitored, measured pressure value is compared with pre-defined target value and balanced with it through adjustment of sea water flowrate in said connecting pipe. And when water-air mix is spread over the entire length of lifting pipe, unrestricted supply of sea water through connecting pipe to lifting pipe is restored. And in the course of offshore airlift stopping process, pressure value in upper part of lifting pipe is pre-defined, then this value is monitored during compressed air supply from compressor to upper part of offshore airlift's lifting pipe, measured pressure value is compared with pre-defined value and as soon as they become equal said compressor is stopped. After that, connection between lifting pipe and ocean through connecting pipe is closed and connection of upper part of lifting pipe with atmosphere is opened again.

EFFECT: improvement of offshore airlift starting and stopping method.

2 cl, 3 dwg

 

The invention relates to mechanical engineering and can be used directly in the development of underwater mineral deposits, lifting elements which are using the airlift.

A known method of running the airlift, which includes the compressed high pressure air in the air-gate the upper part of the riser pipe, displacement of water through the receiving device, followed by compressed air working pressure in the mixer, and the displacement of water do to achieve the lifting pipe working pressure, then open the gate and simultaneously start the supply of compressed air working pressure in the mixer (ed. St. USSR №1629625 A1, CL F04F 1/18, 1991).

The disadvantages of this method is low efficiency of the start of the airlift due to the rapid filling of the offshore ocean water riser pipe when opening installed on it the gate that will lead to a rapid increase in pressure in the mixer, which may lead to the termination of receipt of his compressed air from a compressor that is not possible to achieve significant immersion mixer riser pipe marine airlift in the conduct of development of underwater mineral deposits on significant ocean depths.

Known airlifting installation with method run Alif is a, which contains a source of compressed air, lifting the pipe with a gate valve, a receiver, a mixer, and is equipped with a controlled valve and pressure gauge becoming the pipeline, which is a source of compressed air is communicated with the upper part of the riser pipe (ed. St. USSR №1629625 A1, CL F04F 1/18, 1991).

The disadvantages of the known airlifting installation is the low start up performance of airlift due to the rapid filling of the offshore ocean water riser pipe when opening installed on it the gate that will lead to a rapid increase in pressure in the mixer, which may lead to the termination of receipt of his compressed air from a compressor that is not possible to achieve significant immersion mixer riser pipe marine airlift in the conduct of development of underwater mineral deposits on significant ocean depths.

The closest technological solution is the way to stop and start the airlift, in which the process of starting airlift includes the termination of the communication of the riser pipe with the atmosphere, the compressed air in the air duct from compressor to the mixer and resume messages of the riser pipe with the atmosphere, and the process stops airlift includes pre-set value of the speed of a multicomponent mixture in the upper part of the riser pipe and the sea is th airlift the supply of compressed air via the air duct from compressor to the mixer, the control velocities multicomponent mixture in the upper part of the riser pipe and marine airlift, comparing the monitored value with the set and achieve their compliance by compressed air from the compressor to the upper part of the riser pipe and marine airlift, the cut multicomponent mixture to this part of the riser pipe with simultaneous message her with the atmosphere and the subsequent stopping of the compressor (patent of Ukraine №A, CL F04F 1/00, 2000).

The disadvantages are the closest technological solutions is the low efficiency of the start of the airlift in a known manner due to the rapid filling of the offshore ocean water riser pipe when opening installed on it the gate that will lead to a rapid increase in pressure in the mixer, which may lead to the termination of receipt of his compressed air from a compressor that is not possible to achieve significant immersion mixer riser pipe marine airlift in the conduct of development of underwater mineral deposits on significant ocean depths.

The closest technical solution is airlifting installation to stop and start the airlift, which contains the lifting and inlet pipe, the compressor, the mixture is tel, the air-purge drum, main, and is equipped with a controlled valve additional lines, while the upper part of the riser pipe is equipped with a gate valve and a safety valve, which is installed directly before the point of connection with an air duct and mounted on the gate and communicated with the atmosphere suction nozzle equipped on the lower part of the controlled valve (patent of Ukraine No. 30188 As, CL F04F 1/00, 2000).

The disadvantages are the closest technical solution is the low efficiency of the start of the airlift due to the rapid filling of the offshore ocean water riser pipe when opening installed on it the gate that will lead to a rapid increase in pressure in the mixer, which may lead to the termination of receipt of his compressed air from a compressor that is not possible to achieve significant immersion mixer riser pipe marine airlift in the conduct of development of underwater mineral deposits on significant ocean depths.

The basis of the invention the task is improving the way you start and stop marine airlift, in which by controlling the feed rate of the sea water of the ocean to the lifting pipe marine airlift during its run and the pressure in the upper part of padjen the second pipe in the process of stopping marine airlift provides the possibility of reducing the level of the mixer of the riser pipe, which is compressed by the air compressor during operation of the airlift on its operating characteristics at the expense of guaranteed admission of compressed air into the mixer riser pipe due to its gradual filling of the offshore ocean water during start-up of airlift and significant decrease marine water lifting pipe marine airlift before running it as a result of accumulation isolated from dispersed along the entire length of the riser pipe and marine airlift water-air mixture compressed air compressed by the air compressor in the upper part of the riser pipe and marine airlift in the process of stopping.

The problem is solved in such a way that there is a method of starting and stopping marine airlift, in which the process of starting marine airlift includes a supply of compressed air in the discharge pipe from the compressor to the mixer of the riser pipe, and the process stops marine airlift includes the supply of compressed air in the discharge pipe from the compressor to the mixer of the riser pipe, the compressed air from the compressor to the upper part of the riser pipe and marine airlift and message her with the atmosphere, and the compressor stops, which according to the invention is characterized by the fact that in the process of starting a marine uh the Elevator pre-set feed rate of the sea water ocean lifting the pipe marine airlift stop message to the upper part of the riser pipe with the atmosphere, serves compressed by the compressor air in the upper part of the riser pipe and marine airlift displace focused in lifting the pipe sea water into the ocean through the supply pipe, stop the supply of compressed air compressor in the upper part of the riser pipe after reaching in concentration and it compressed air pressure, which corresponds to the difference of pressures in the pool of sea water ocean on the level of immersion mixer riser pipe and the working pressure of the compressor, stop the message of the riser pipe through the inlet pipe to the ocean, resume message to the upper part of the riser pipe with the atmosphere and at the same time serves compressed by the compressor in the air the mixer of the riser pipe, and then provide the message of the riser pipe through the inlet pipe to the ocean, to control the feed rate of the sea water lifting pipe marine airlift, comparing the monitored value with the set and achieve their compliance by controlling the flow rate of sea water ocean in the inlet pipe, and after the spread of water-air mixture along the entire length of the riser pipe and resume unimpeded inflow of marine waters through the inlet to the lifting pipe, and in the process stop marine airlift pre is satisfactory set pressure value in the upper part of the riser pipe, monitor this value during the compressed air from the compressor to the upper part of the riser pipe and marine airlift, comparing the monitored value with a given, and upon reaching their conformity to perform the compressor stops, then stop the message of the riser pipe through the inlet pipe to the ocean and resume message to the upper part of the riser pipe with the atmosphere.

The basis of the invention the task is improving the system to start and stop marine airlift, in which by introducing additional elements in the known design concept provides the possibility of reducing the level of the mixer of the riser pipe, which is compressed by the air compressor during operation of the airlift on its operating characteristics at the expense of guaranteed admission of compressed air into the mixer riser pipe due to its gradual filling of the offshore ocean water during start-up of airlift and significant decrease marine water lifting pipe marine airlift before running it as a result of accumulation isolated from dispersed along the entire length of the riser pipe and marine airlift water-air mixture compressed air when compressed by the air compressor in the upper part of the riser pipe and the marine air-lift is in the process of stopping, and rational configuration of technical means.

The problem is solved in such a way that known system for starting and stopping marine airlift, which contains the lifting and inlet pipe, compressor to the discharge pipe, the mixer of the riser pipe, the air-purge drum, communicated with the upper part of the riser pipe and the discharge pipe additional pipeline with the controlled valve and is communicated with the air-purge drum suction pipe, and the upper part of the riser pipe and marine airlift equipped with a gate valve and a safety valve, which according to the invention differs in that the inlet pipe marine airlift contains a rotary valve, suction pipe contains a filter and in communication with the intake system of the compressor, the discharge line of the compressor and additional pipeline equipped with check valves and operating valves, gate through the hinge and rod is connected with a mechanical drive, on the upper part of the riser pipe is the seal, and the sensors determine the values of flow rate and pressure connected to the inlet pipe of the sea air and the upper part of the riser pipe, respectively.

In figures 1, 2 and 3 shows a diagram of a system for implementing the method of starting and stopping the Orsk airlift.

System for starting and stopping marine airlift contains lifting 1 and inlet 2 pipe, the compressor 3 to the discharge pipe 4, the adder 5 of the riser pipe 1, the air-purge drum 6, is in communication with the upper part of the riser pipe 1 and the discharge pipe 4 additional pipe 7 provided with air-purge drum 6 suction pipe 8, while the upper part of the riser pipe 1 is equipped with a gate valve 9 and the safety valve 10, the inlet pipe 2 includes a rotary valve 11, the gate 9 via a hinge 12, a rod 13 and clutch 14 is connected with a mechanical actuator 15, the suction pipe 8 includes a filter 16 and communicated with the intake system of the compressor 3, the discharge pipe 4 and an additional pipeline 7 is equipped with the corresponding non-return valves 17, 18 and controlled by valves 19, 20, the mechanical actuator 15 includes a gear 21 and the source of mechanical energy 22, on the upper part of the riser pipe 1 is located a seal 23, and the sensors determine the flow rate of the fluid 24 and pressure 25 is connected with a supply pipe 2 and the upper part of the riser pipe 1, respectively. The system further comprises a control unit 26.

The method of using the system to start and stop marine airlift is implemented as follows.

In the process of starting a marine airlift pre-set the feed rate of the sea water of the ocean to the lifting tube 1 as the main technological parameter. Before starting the system to start and stop the sea of air operated valves 19 and 20 are completely closed, the lifting tube 1 through the inlet pipe 2 and fully open the rotary valve 11 (see figure 3) communicated with a pool of sea water ocean, located between the compressor 3 and controlled by the valve 19, the site of the injection pipe 4 and located between the connection zone to the discharge pipe 4 and controlled by valve 20 plot additional pipeline 7 is filled with compressed air compressor 3, and the upper part of the riser pipe 1 through the open gate 9 (see figure 2) and the air-purge drum 6 is communicated with the atmosphere.

The control unit 26 opens managed the valve 20, through a mechanical drive 15 completely covers the gate 9, and runs the compressor 3. Compressed by the compressor 3, the air enters the discharge 4 and an additional 7 pipelines managed through the open valve 20 and the check valve 18 in the upper part of the riser pipe 1, and centered in her sea water is displaced through the mixer 5, the inlet pipe 2 and fully open the rotary valve 11 in the basin of the ocean. When this seal 23 and the hinge 12 ensures high efficiency of the closing of the riser pipe 1 by gate 9. After reaching the upper part of the riser pipe 1 pressure that compliance is no difference pressure values in the pool of sea water ocean on the level of immersion mixer 5 of the riser pipe 1 and the operating pressure of the compressor 3, determined by the pressure gauge 25, the control unit 26 completely covers the rotary valve 11 and driven valve 20 and opens with a mechanical drive 15 gate 9 and managed the valve 19. As a consequence, compressed by the compressor 3, the air discharge pipe 4 managed through the open valve 19 and the check valve 17 is supplied to the mixer 5 of the riser pipe 1. The lowered level of the column of sea water ocean in the lifting tube 1 provides guaranteed compressed by the compressor 3 of the air in the mixer 5. By the force of Archimedes, which operates on compressed air in the mixer 5, he begins to rise in concentrated in the lifting tube 1 sea water of the ocean. After a certain time after compressed by the compressor 3 of the air in the mixer 5, which corresponds to the distribution of compressed air across filled with salt water of the ocean part of the riser pipe 1, the control unit 26 is partially opens the rotary valve 11 and sea water ocean inlet pipe 2 through the mixer 5 starts to do the lifting tube 1. In parallel, the control unit 26 by using the detection sensor, the flow rate of the fluid 24 begins to control the flow rate of the marine waters of the inlet pipe 2 to the lifting tube 1, compares the monitored value with a preset and shortcuts which make them match by adjusting the size of the opening of the rotary valve 11 and accordingly the flow rate of sea water ocean in the inlet pipe 2. Gradual filling of the lifting tube 1 sea water of the ocean will provide a guaranteed flow of compressed air to the mixer 5 through a gradual increase of pressure therein during the start of the airlift. After distribution of the water-air mixture along the entire length of the riser pipe 1, the control unit 26 is fully opens the rotary valve 11 and airlifting the system goes to its performance. When the marine air pump check valves 17 and 18 prevent the formation in the vertical portion of the discharge pipe 4 of a column of sea water of the ocean.

In the process of stopping marine airlift pre-set pressure value in the upper part of the riser pipe 1 as the main technological parameter.

The control unit 26 opens managed the valve 20 with the simultaneous closing by mechanical actuator 15 of the gate 9, and a controlled valve 19, resulting compressed by the compressor 3, the air discharge 4 and an additional 7 pipelines managed through the open valve 20 and the check valve 18 is fed into the upper part of the riser pipe 1. In parallel, the control unit 26 by using the sensor value of the pressure gauge 25 begins to control the pressure in the upper part of the riser pipe 1, compares the monitored value with a preset, and when the response to the situation of their compliance executes the stop of the compressor 3, after which it completely closes the rotary valve 11 and driven valve 20 with the opening using mechanical actuator 15 of the gate 9. The safety valve 10 prevents dangerous high dynamic pressure fluctuations in an additional 7 and discharge 4 pipelines in the process of stopping marine airlift.

Re-starting the system to start and stop marine airlift going on above technologies with the exception of technological operations reduce the level of sea waters in the lifting tube 1 by compressed by the compressor 3 air discharge 4 and an additional 7 pipelines managed through the open valve 20 and the check valve 18 in the upper part of the riser pipe 1.

Thus, the use of the claimed invention will improve the efficiency of the development of underwater mineral deposits at great depths of the oceans by increasing the magnitude of the dip in the swimming pool of sea water ocean mixer riser pipe and productivity airlifting rise.

1. Method of starting and stopping marine airlift, in which the process of starting marine airlift includes a supply of compressed air in the discharge pipe from the compressor to the mixer of the riser pipe, and the process of stop mo the sky airlift includes the supply of compressed air in the discharge pipe from the compressor to the mixer of the riser pipe, the compressed air from the compressor to the upper part of the riser pipe and marine airlift and message her with the atmosphere, as well as the stop of the compressor, characterized in that in the process of starting a marine airlift pre-set feed rate of the sea water of the ocean to the lifting pipe marine airlift stop message to the upper part of the riser pipe with the atmosphere, serves compressed by the compressor air in the upper part of the riser pipe and marine airlift displace focused in lifting the pipe sea water into the ocean through the supply pipe, stop the supply of compressed air compressor in the upper part of the riser pipe after reaching in concentration and it compressed air pressure, which corresponds to the difference of pressures in the pool of sea water ocean on the level of immersion mixer riser pipe and the working pressure of the compressor, stop the message of the riser pipe through the inlet pipe to the ocean, resume message to the upper part of the riser pipe with the atmosphere and at the same time serves compressed by the compressor air in the mixer of the riser pipe, and then provide the message of the riser pipe through the inlet pipe to the ocean, to control the feed rate of the sea water lifting pipe marine airlift, comparing the monitored value with the set and reach their sootvetstvuuschem regulating the flow rate of sea water ocean in the inlet pipe, and after the spread of water-air mixture along the entire length of the riser pipe and resume unimpeded inflow of marine waters through the inlet to the lifting pipe, and in the process stop marine airlift pre-set pressure value in the upper part of the riser pipe, control this value during the compressed air from the compressor to the upper part of the riser pipe and marine airlift, comparing the monitored value with a given, and upon reaching their conformity to perform the compressor stops, then stop the message of the riser pipe through the inlet pipe to the ocean and resume message to the upper part of the riser pipe with the atmosphere.

2. System for starting and stopping marine airlift, which contains the lifting and inlet pipe, compressor to the discharge pipe, the mixer of the riser pipe, the air-purge drum, communicated with the upper part of the riser pipe and the discharge pipe additional pipeline with the controlled valve and is communicated with the air-purge drum suction pipe, and the upper part of the riser pipe and marine airlift equipped with a gate valve and a safety valve, wherein the inlet pipe marine airlift contains a rotary valve, suction pipe contains a filter and communicated with affected by the system of the compressor, the discharge line of the compressor and additional pipeline equipped with appropriate check valves and operating valves, gate through the hinge and rod is connected with a mechanical drive, on the upper part of the riser pipe is the seal, and the sensors determine the values of flow rate and pressure connected to the inlet pipe of the sea air and the upper part of the riser pipe, respectively.



 

Same patents:

FIELD: mining.

SUBSTANCE: group of inventions relates to mechanical engineering and can be used directly in development of subsea mineral deposits, where mineral components are pumped out by airlift. Method for starting and operating of offshore airlift includes pumping out of components from subsea mineral deposits as a part of hydromixture, supply of compressed air into mixer of lifting pipe, creation of multicomponent mixture after the compressed air is injected into hydromixture flow, and transporting of multicomponent mixture flow in lifting pipe of offshore airlift. In this method pressure value of air-water mixture is pre-defined in operating mixer of lifting pipe, where compressed air is supplied from compressor during airlift operation at its operating performance rate. Then compressed air is supplied from compressor into lifting pipe mixer, which is located above operating mixer, the air localised in accumulator is additionally compressed up to the pressure in operating mixer by supplying sea water into said accumulator under its static pressure. Then this additionally compressed air is supplied into operating mixer, pressure of sea water in operating mixer is monitored during the process of compressed air supply into it, measured pressure value is compared with pre-defined target value and as soon as they become equal supply of compressed air into said mixer is stopped, as well as supply of sea water into accumulator, while compressed air from compressor is supplied simultaneously into operating mixer through accumulator. After that, during offshore airlift operation, accumulator is charged with compressed air from compressor by means of parallel supply of sea water from said accumulator into operating mixer, when a difference is established between supply of compressed air from compressor to accumulator and supply of compressed air from accumulator to operating mixer.

EFFECT: improvement of method for starting and operating of offshore airlift, as well as system for its implementation.

3 cl, 4 dwg

FIELD: water purification.

SUBSTANCE: airlift contains fixed to each other and coaxially-mounted inlet 1 and outlet 2 sections, made from pipes of different diameter. In place of pipe connection seal 3 is located. End of section 1 pipe, fixed in end part of section 2 pipe, is equipped with disperser 4. According to first version of invention free end of inlet section 1 pipe is fixed in passage canal 9 ┤ -shaped tee 8, supplied with side boss 11 in form of connecting pipe for connection to pipeline 12 of compressed air supply, fixed along airlift length by means of clamps 13. According to second version of invention free end of inlet section 1 pipe is fixed in passage canal of ⊥ -shaped tee, supplied with side bosses with connected passage canals, one of which is made in form of connecting pipe for connection to pipeline of compressed air supply, the second being made in form of shut-off valve seat. Shut-off valve is supplied with tie and float and is movably fixed on inlet and outlet sections. According to third version of invention free end of inlet section 1 pipe is fixed in passage canal of running-water vortical chamber, supplied with tangent connecting pipe for introduction of compressed air.

EFFECT: increase of efficiency and reliability of airlift with ensuring possibility of its use as means for saturation of transferred liquid with air.

36 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: water lifting device incorporates a lifting, intake in and air feed pipes, a mixing chamber with inclined nozzle holes (NH) and an umbrella-like head in the form of truncated cone (TC), its larger base directed downward and smaller base attached to the intake branch pipe end face. The TC inner surface has vertical trapezoidal plates arranged tangentially to the intake branch pipe cylinder part towards the annular inclination of the mixing chamber NH axes. The NH axes are generators of one-space hyperboloid of revolution. The mixing chamber inner bucket perimeter is furnished with an annular truncated cone bore with larger TC base upward. The TC generators are perpendicular to tangential planes at the points the latter cross the surface of the one-space hyperboloid of revolution. Conoidal nozzles with inlet diameters not over the width of the TC bore and outlet diameters equal to the TC diameters are arranged equally spaced along the circumference in recesses furnished along the medium axial. The conoidal nozzle axes are aligned with the respective TC axes.

EFFECT: higher efficiency and expanded performances of the unit.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: pump consists of pressure tight working reservoir with a flat roof and expansion tank, equipped with a siphon discharge and container assembled above the roof, and of suction and forcing pipes with valves; heating-cooling panel is cut into the case of the reservoir, the tank and pipes are insulated, the forcing pipe is installed inside the working reservoir, the expansion tank is located above the roof of the reservoir the south wall of which by means of a screen is protected from direct sun rays, the suction pipe is installed to supply water from basins and reservoirs via an underground channel or underground pipe lines and can be cleaned by means of a straining filter wall.

EFFECT: efficiency and ecological safety are achieved.

1 dwg

FIELD: machine building.

SUBSTANCE: environmental separation method in airlifting of submersible deposits of minerals and its implementation system which comprises lifted pipe, replenishment camera with a branch, feeding pipe, pump with force piping, air separator assembled on the lifted pipe, lifted pipe mixer connected to the force piping of the pump, compressor with a corresponding force piping, water separator assembled in an intermediate cross section of the pump force piping - separate accumulator, connected to a separate accumulator, and branch outgoing to environment, additional mixer connected to the pump force piping and to the compressor force piping, and fluid consumption sensor. Additional accumulator is installed in the intermediate cross section of the feeding pipe, and suction and force pipelines of an additional pump are tied to an additional accumulator. The separate accumulator comprises indicators of fluid level, suction pipeline of the additional pump is equipped with a tip, located in the additional accumulator. The force pipeline of the additional pump comprises pivotal position distributing valve, and blade wheel is installed in the additional accumulator. At that the force piping of the pump and the branch, connected to the separate accumulator, are equipped with corresponding controlled valves. The suction pipeline of the compressor is equipped with a filter and connected to an air separator, while a rotation speed sensor - a tachometer -is connected to the blade wheel.

EFFECT: improvement of environmental separation method in airlifting of submersible deposits of minerals; improvement of the ocean ecosystem.

2 cl, 5 dwg

FIELD: mechanical engineering, particularly underwater mineral deposit mining.

SUBSTANCE: method involves using system including lift tubing, supply chamber with connection pipe, supply pipe, pump with injection pipeline, air separator installed in lift tubing, lift tubing mixer communicated with injection pipeline and pump with corresponding heating pipeline. The system also has water separator installed in intermediate cross-section of injection pipeline. The water separator is made as independent accumulator. The system includes connection pipe attached to independent accumulator, additional mixer communicated with injection pipeline and liquid flow meters. Additional accumulator is arranged in intermediate transversal cross-section of lift tubing. Sucking pump pipeline and sucking compressor pipeline are connected with additional accumulator and air separator correspondingly. Independent accumulator comprises liquid level indicators. Sucking pump pipeline is communicated with additional connection pipe provided with controllable gate. Sucking compressor pipeline comprises filter. Consistometer is connected with supply pipe.

EFFECT: increased efficiency of continuous underwater mineral deposit element lifting due to increased marine hydraulic rams.

2 cl, 5 dwg

FIELD: mechanical engineering, particularly underwater mineral deposit mining.

SUBSTANCE: method involves lifting underwater mineral deposit members included in hydraulic mixture; creating multi-component mixture; injecting compressed air into hydraulic mixture flow; transporting multi-component mixture flow inside lifting pipe of marine airlift; supplying compressed air into separate water flow along with following conveyance of compressed air included in water-air mixture and supplying compressed air extracted from water-air mixture flow to lifting pipe of marine airlift. First of all hydraulic mixture flow rate in airlift supply pipe is set. Ocean stream energy is converted into electric power to be supplied to electric drives of airlift compressor and pump. Hydraulic mixture rate in marine airlift supply pipe is controlled and said controlled value is compared with predetermine value to provide equality between both values by regulation of depth of electric power station submersion in ocean. Said electric power station converts ocean stream energy into electric power.

EFFECT: increased lifting efficiency and ecological safety of underground mineral mining due to possibility of supplementary natural energy source usage.

2 cl, 6 dwg

FIELD: mechanical engineering, possible use for extracting mineral resources.

SUBSTANCE: method includes transporting water in composition of water-air mixture, creating multi-component mixture after influx of hard particles into stream of air-water mixture of forcing pipeline of pump and transportation of stream of multi-component mixture into forcing pipeline. Further the method includes removing multi-component air mixture from composition of stream with later creation hydro-mixture stream in forcing pipeline. In advance, the value of concentration is set for separate stream of hydro-mixture for removal of hard particles from its composition in the ocean at depth, corresponding to lifting parameters and composition of hydro-mixture. Hard particles, injected into stream of water-air mixture of forcing pipeline, are continuously removed from composition of separate stream. The air removed from composition of multi-component stream is repeatedly injected into water stream of forcing pipeline, concentration value of hydro-mixture stream of forcing pipeline is monitored. The value being monitored is compared to given value and match is achieved between the two by adjusting pressure value of air-water mixture, in the stream of which influx of hard particles occurs.

EFFECT: possible continuous lifting of mineral resources in composition of multi-component mixture, including sintering thereof and transportation of hard particles through the pump.

2 cl, 3 dwg

FIELD: mini-thermoelectric plants, agriculture, fire-fighting equipment.

SUBSTANCE: invention is designed for use in self-contained gas generating cogeneration plants, system of impulse water spraying in agriculture or fire fighting, hydraulic hammer dispersers of solid and liquid materials. Proposed impulse water-jet pump contains pipeline, lower and upper pressure tanks with combustion chamber installed in between which is provided with intake and outlet valves and spark plug. Pump contains nozzle to discharge water and impact valve installed between combustion chamber and upper pressure tank to close passage to upper pressure tank, and valve consisting of movable needle-rod arranged in nozzle and secured on piston connected with spring.

EFFECT: increased velocity of water discharge.

1 dwg

Pump // 2295065

FIELD: pump engineering.

SUBSTANCE: pump has cylinder with bottom provided with sucking valve and filter, head with the outlet branch pipe connected with the air pipeline, and outlet branch pipe connected with the liquid pipeline by means of weld or thread and provided with a check valve. The pipelines are mounted in the casing tube. The free end of the liquid pipe line is in communication with the vessel of the regulator of the cycle frequency. The pump is provided with compressor and vacuum pump. The cylinder is made of a section of the casing tube that receives the pipelines. The free end of the air pipeline is connected with the outlet branch pipe of the compressor and with the branch pipe of the vacuum pump.

EFFECT: enhanced efficiency and improved operation conditions.

1 cl, 2 dwg

FIELD: mining.

SUBSTANCE: group of inventions relates to mechanical engineering and can be used directly in development of subsea mineral deposits, where mineral components are pumped out by airlift. Method for starting and operating of offshore airlift includes pumping out of components from subsea mineral deposits as a part of hydromixture, supply of compressed air into mixer of lifting pipe, creation of multicomponent mixture after the compressed air is injected into hydromixture flow, and transporting of multicomponent mixture flow in lifting pipe of offshore airlift. In this method pressure value of air-water mixture is pre-defined in operating mixer of lifting pipe, where compressed air is supplied from compressor during airlift operation at its operating performance rate. Then compressed air is supplied from compressor into lifting pipe mixer, which is located above operating mixer, the air localised in accumulator is additionally compressed up to the pressure in operating mixer by supplying sea water into said accumulator under its static pressure. Then this additionally compressed air is supplied into operating mixer, pressure of sea water in operating mixer is monitored during the process of compressed air supply into it, measured pressure value is compared with pre-defined target value and as soon as they become equal supply of compressed air into said mixer is stopped, as well as supply of sea water into accumulator, while compressed air from compressor is supplied simultaneously into operating mixer through accumulator. After that, during offshore airlift operation, accumulator is charged with compressed air from compressor by means of parallel supply of sea water from said accumulator into operating mixer, when a difference is established between supply of compressed air from compressor to accumulator and supply of compressed air from accumulator to operating mixer.

EFFECT: improvement of method for starting and operating of offshore airlift, as well as system for its implementation.

3 cl, 4 dwg

FIELD: mining.

SUBSTANCE: invention refers to loose ground mining devices, and can be used for deep alluvial deposits of hard mineral resources, and mainly coastal shelf deposits. Alluvial mining device includes a body with a suction connection pipe and with scouring atomisers connected with a discharge cavity. Body is made in the form of a tubular shell the height of which exceeds the distance from surface to rim rock, and lateral dimensions of the body do not exceed a double action radius of scouring atomisers. Body cross section is square-shaped, at that scouring atomisers are arranged on the sides of the square, and suction connection pipes are located at its angles. Body is equipped at least with one vibrator. Internal wall of the body is equipped with a device forming a force impact which is perpendicular to internal surface of the body; device is made in the form of a hollow torus-shaped shell attached to internal surface of the body and equipped with the device changing pressure in the shell cavity, mostly with a reversible hydraulic pump.

EFFECT: providing the possibility of removing loose materials, and maintaining a vertical position of the resulting cavity walls.

3 cl, 3 dwg

FIELD: mining.

SUBSTANCE: invention refers to exploitation of under-water deposits of fluid and gaseous minerals, particularly, hydrocarbons; notably, invention refers to underwater process assemblies facilitating operation on shelf in the high seas at presence of floating ice massifs including icebergs and ice hummocks. The system consists of a protective conveyer assembled above a wellhead and made in form of a solid casing withstanding a load comparable to the critical load of ice massif impact. Also the casing is equipped with a row of sensors triggered at the load exceeding the critical one; the said sensors are electrically connected with shut-off automatic system operating upon receiving a signal from sensors of a well head sealing facility.

EFFECT: facilitation of mobility, upgraded technological effectiveness, economic efficiency and reliability of the structure.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: environmental separation method in airlifting of submersible deposits of minerals and its implementation system which comprises lifted pipe, replenishment camera with a branch, feeding pipe, pump with force piping, air separator assembled on the lifted pipe, lifted pipe mixer connected to the force piping of the pump, compressor with a corresponding force piping, water separator assembled in an intermediate cross section of the pump force piping - separate accumulator, connected to a separate accumulator, and branch outgoing to environment, additional mixer connected to the pump force piping and to the compressor force piping, and fluid consumption sensor. Additional accumulator is installed in the intermediate cross section of the feeding pipe, and suction and force pipelines of an additional pump are tied to an additional accumulator. The separate accumulator comprises indicators of fluid level, suction pipeline of the additional pump is equipped with a tip, located in the additional accumulator. The force pipeline of the additional pump comprises pivotal position distributing valve, and blade wheel is installed in the additional accumulator. At that the force piping of the pump and the branch, connected to the separate accumulator, are equipped with corresponding controlled valves. The suction pipeline of the compressor is equipped with a filter and connected to an air separator, while a rotation speed sensor - a tachometer -is connected to the blade wheel.

EFFECT: improvement of environmental separation method in airlifting of submersible deposits of minerals; improvement of the ocean ecosystem.

2 cl, 5 dwg

FIELD: mining, particularly development of sand-and-gravel and placer deposit with hydraulic dredges.

SUBSTANCE: method involves creating hydraulic mix with flow-rate exceeding suction means of hydraulic dredge; condensing hydraulic mix in condensing-and-separation device and separating the hydraulic mix into condensed and settled portions; delivering condensed portion into suction means of hydraulic dredge; returning settled portion to mine face. Device for described method realization comprises suction means of hydraulic dredge, socking head, pipeline and pump for hydraulic mix forming and supply from mine face. Device also has attachment system including independent socking head, condensation-and-separation device and outlet to discharge settled portion into sump.

EFFECT: increased output, possibility of initial material refinement and extended mining depth.

16 cl, 6 dwg

FIELD: mining, particularly to develop deposits in shelf adjoining shore line.

SUBSTANCE: method involves forming enveloping structure made as two adjacent closed structures, which surround placer deposit area, extending from bedrock to water surface with the use of plates having vertical edges to be releasably connected with that of at least two adjacent ones so that one plate is used as structure partitioning wall, wherein enclosing structure creation is carried out by serial plate insertion up to bedrock with simultaneous plate edge connection with each other; introducing excavation equipment for placer material mining inside structures after enveloping structure forming; mining placer material in the first structure; excavating placer material in the next structures with tails stacking in previous structure up to level of not less than water area bottom; creating next enclosing structures by serial plate removal so that one plate side touches massif surrounding excavation area and another side thereof is in contact with filling massif including tails or both plate sides touch filling massif; serially inserting removed plates in deposit up to bedrock along with plate edge connection with that of plates adjoining enclosing structures to be developed. New enclosing structures are created from mining propagation side.

EFFECT: increased efficiency of placer material mining, provision of inner enveloping structure cavity dimension independence of placer deposit thickness in capping rock presence and increased mining completeness.

6 cl, 4 dwg

FIELD: mining, particularly to develop deposits in shelf adjoining shore line.

SUBSTANCE: method involves forming enveloping structure made as closed barrier, which surrounds placer deposit area, extending from bedrock to water surface; separating space inside enveloping structure in at least two chambers; introducing excavation equipment for placer material mining inside chambers after enveloping structure forming; mining placer material in the first chamber; excavating placer material in the next chambers with tails stacking in previous chamber up to level of not less than water area bottom; removing enveloping structure chambers from the goaf side of mining area adjoining chambers from which placer material is excavated and forming thereof in immediate proximity to chambers from mining propagation side.

EFFECT: increased mining completeness, provision of inner enveloping structure cavity dimension independence of placer deposit thickness in capping rock presence.

5 cl, 4 dwg

FIELD: mechanical engineering, particularly underwater mineral deposit mining.

SUBSTANCE: method involves using system including lift tubing, supply chamber with connection pipe, supply pipe, pump with injection pipeline, air separator installed in lift tubing, lift tubing mixer communicated with injection pipeline and pump with corresponding heating pipeline. The system also has water separator installed in intermediate cross-section of injection pipeline. The water separator is made as independent accumulator. The system includes connection pipe attached to independent accumulator, additional mixer communicated with injection pipeline and liquid flow meters. Additional accumulator is arranged in intermediate transversal cross-section of lift tubing. Sucking pump pipeline and sucking compressor pipeline are connected with additional accumulator and air separator correspondingly. Independent accumulator comprises liquid level indicators. Sucking pump pipeline is communicated with additional connection pipe provided with controllable gate. Sucking compressor pipeline comprises filter. Consistometer is connected with supply pipe.

EFFECT: increased efficiency of continuous underwater mineral deposit element lifting due to increased marine hydraulic rams.

2 cl, 5 dwg

FIELD: mechanical engineering, particularly underwater mineral deposit mining.

SUBSTANCE: method involves lifting underwater mineral deposit members included in hydraulic mixture; creating multi-component mixture; injecting compressed air into hydraulic mixture flow; transporting multi-component mixture flow inside lifting pipe of marine airlift; supplying compressed air into separate water flow along with following conveyance of compressed air included in water-air mixture and supplying compressed air extracted from water-air mixture flow to lifting pipe of marine airlift. First of all hydraulic mixture flow rate in airlift supply pipe is set. Ocean stream energy is converted into electric power to be supplied to electric drives of airlift compressor and pump. Hydraulic mixture rate in marine airlift supply pipe is controlled and said controlled value is compared with predetermine value to provide equality between both values by regulation of depth of electric power station submersion in ocean. Said electric power station converts ocean stream energy into electric power.

EFFECT: increased lifting efficiency and ecological safety of underground mineral mining due to possibility of supplementary natural energy source usage.

2 cl, 6 dwg

FIELD: obtaining minerals from underwater, particularly to produce ferromanganesian concretions from Baltic sea shelf in the case of low concretion depth.

SUBSTANCE: concretion production device comprises main watercraft, receiving means and winch mounted on the watercraft, as well as angle pulleys, head and rear haulage ropes, perforated vessel having rectangular cross-section and provided with cutting edges and locking means. Device also has movable means for rear haulage rope angle pulley fixation in space. The movable means is made as supplementary watercraft fastened to main one by means of two steel wire rope branches. The steel rope passes over additional angle pulley arranged on supplementary watercraft. Free steel rope ends are fastened to drum of additional winch installed on main watercraft. Running wheels are arranged in upper vessel part by means of holders so that they may cooperate with both steel wire rope branches in top and bottom parts thereof and displace above branches in longitudinal direction. Vessel locking means is made as rotary sector connected with crank installed on vessel side wall through connecting-rod. Crank may cooperate with curvilinear strap supported by main watercraft. Rear haulage rope is fastened to upper sector edge. Both winches are secured to rotary platform, which may rotate in horizontal plane with respect to main watercraft body. Distance between steel wire rope branches exceeds vessel width. Additional angle pulley diameter exceeds that of angle pulley of rear haulage rope. Both pulleys are in axial alignment with each other and provided with means, which prevents rope dislodgement.

EFFECT: increased efficiency of concretion production equipment due to decreased labor inputs and increased concretion output.

6 dwg

FIELD: mining.

SUBSTANCE: group of inventions relates to mechanical engineering and can be used directly in development of subsea mineral deposits, where mineral components are pumped out by airlift. Method for starting and operating of offshore airlift includes pumping out of components from subsea mineral deposits as a part of hydromixture, supply of compressed air into mixer of lifting pipe, creation of multicomponent mixture after the compressed air is injected into hydromixture flow, and transporting of multicomponent mixture flow in lifting pipe of offshore airlift. In this method pressure value of air-water mixture is pre-defined in operating mixer of lifting pipe, where compressed air is supplied from compressor during airlift operation at its operating performance rate. Then compressed air is supplied from compressor into lifting pipe mixer, which is located above operating mixer, the air localised in accumulator is additionally compressed up to the pressure in operating mixer by supplying sea water into said accumulator under its static pressure. Then this additionally compressed air is supplied into operating mixer, pressure of sea water in operating mixer is monitored during the process of compressed air supply into it, measured pressure value is compared with pre-defined target value and as soon as they become equal supply of compressed air into said mixer is stopped, as well as supply of sea water into accumulator, while compressed air from compressor is supplied simultaneously into operating mixer through accumulator. After that, during offshore airlift operation, accumulator is charged with compressed air from compressor by means of parallel supply of sea water from said accumulator into operating mixer, when a difference is established between supply of compressed air from compressor to accumulator and supply of compressed air from accumulator to operating mixer.

EFFECT: improvement of method for starting and operating of offshore airlift, as well as system for its implementation.

3 cl, 4 dwg

Up!