Method for hydromechanical benefication of brown coal products of hydraulic borehole mining, and process line for its implementation
SUBSTANCE: method for hydromechanical benefication involves drilling of production wells, water-jet destruction of a mineral deposit in extraction chambers of the deposit with its changer over to a movable state as a part of a hydraulic mixture, hydraulic lifting via the well to day surface from extraction chambers of the hydraulic mixture in the form of pulp, hydraulic transportation of pulp to a benefication place, and gravitational benefication of the mineral deposit in water medium. Destruction of the deposit is performed during formation of an extraction chamber with a vertical symmetry axis in the form of a rotation figure: cylinder, cone or ball, thus creating a circular flow of coal hydraulic mixture, which is swirled about the vertical symmetry axis, and depositing foreign heavy inclusions and sand at the bottom of the extraction chamber in the created hydraulic cyclone. Suction of coal hydraulic mixture is performed from the level above deposit level; turbulent hydraulic transportation of pulp from the extraction chamber to the place of its preparation for benefication is performed via pipelines. Hydromechanical treatment of pulp is performed so that a brown coal suspension is performed. Target products are obtained in the form of a concentrate of humic acids and a concentrate of bitumens by tangential supply of the flow of the brown coal suspension to a conical sedimentation basin, filling of the sedimentation basin with further settlement of the brown coal suspension and staged pumping-out of highly disperse fractions that are settled subsequently with their supply to different accumulation tanks for collection of target products and benefication tailings. The processing line implementing this method consists of three sections - borehole hydraulic mining, hydraulic transportation and benefication - subsequently dispersing brown coal till fineness.
EFFECT: implementation of staged production of target products.
4 cl, 2 dwg
The invention relates to the mining and processing industries, to the enrichment of extracted mineral raw materials, particularly brown coal, by dividing the useful components of the raw materials using liquids. The invention can find application for initial receipt and enrichment of intermediate products of chemical raw materials in the conditions of a mine site in borehole hydropobic.
Known methods of extraction conventionally dry mineral raw materials - carbon-containing mineral with a low degree of coalification, such as brown coal and peat, dry digging through a career or a surface-layer-by-layer method (Mountain encyclopedia www.mining-enc.ru).
Known methods of enrichment conventionally dry brown coal or peat-oriented humic acids, humates, bitumen, resins and Montan-wax. These methods dry processing of brown coal or peat to obtain intermediate products of chemical processing can be summarized by the following chain of conversion of raw materials:
- excavation (backhoe/combine harvester);
- crushing/crushing (crusher/mill);
- mechanical dewatering (centrifuge);
- extraction of alkaline solutions of humates (parcalar);
- mechanical dewatering (centrifuge);
- the extraction of gasoline amounts of substances is of Itum, tar, Montan-wax (to conventional Soxhlet extractions) (see, e.g., Natural organic matter: structure, properties, application: monograph / S. A. Babenko, A. K. Semakina, N. In. Chudinova, K. P. Bokuchava // Under the General editorship of S. A. Babenko. - Tomsk: Izd. polytechn. University, 2007. - S. 99-105); Thabrany D. T., Pobedonostsev O. I., Pobedonostsev N. And. and other Plehanova acid and their use. - Tashkent: Izd-vo "FAN", 1980. - 153 C.; EN 2286970 and others).
By analogy with the cement industry, where there are "wet" and "dry" methods of making cement, there are ways of extraction and enrichment of lignite or of peat on the "wet" technology.
Known hydroturf - way development of peat deposits using dredging and obtained by this method products (Mountain encyclopedia www.mining-enc.ru). The technological process of extraction of peat hydraulic method includes erosion of peat deposits with humidity 89-92% jet of water high (1-2 MPa) the pressure at which the peat turns into GidroMash humidity 95-97%, and transportation of hydromancy through the pipe to the place of processing.
A method of obtaining liquid humic fertilizer, comprising preparing a water suspension of peat, introducing into the suspension ash, processing the mixture alkaline with stirring, keeping the suspension and separating the liquid phase (RU 2263092).
There is a method of hydro-enrichment with the earth with the total amount by dividing the number of component parts by the method of stepwise assertion (Rakovsky C. E. General chemical technology of peat. - M. - L.: State. Power. Publishing house, 1949. - S. 358-360). In the powdered raw material superfine part consists of carbohydrates, the most oxygen-rich, with the largest share of humic acids containing less oxygen and having a smaller specific gravity and of the bitumen with the lowest specific gravity. Experimental study of the sedimentation processes in the coal/peat suspensions showed that there is a five-stage accretion of sediments. First drop the fractions containing little of humic acids and bitumen; then start to separate fractions increasingly rich in humic acids, and in the end the content of humic acids (in fractions, the most slowly drop down) also falls. The content of the bitumen invariably increases with the length of time of sedimentation. By selecting individual consistently drop-down fractions you can get the products, enriched target substances, for example, the third fraction will contain 60% humic acid, and the fifth fraction is 20% of the bitumen.
General shortcomings of "dry" methods are operations dehydration and extraction, complicating, more expensive technology, as well as reducing the productivity of obtaining the desired products.
The main disadvantage of wet methods is the lack of direct with the ides of hydropobic raw materials with hydromechanical enrichment pulp, and duration of the process of sedimentation enrichment.
The closest analogue (prototype) of the invention is a method of obtaining and use of products hydraulic borehole mining and device for its implementation (EN 2496980). Prototype method includes the drilling of production wells monitor the destruction of minerals in the mining chambers reservoir, hydraulic lift well above the surface of the excavation cameras slurry in the form of pulp, hydrotestosterone pipeline mined mineral in the composition of the pulp on the map of reclamation, gravity separation of heavy rudosoderzhaschuyu fraction from the slurry of sand and clay, the direction of flow of the slurry of sand and clay outside of the card and Deposit it with tangential feed to the hydrocyclone, where the sand is deposited in the sump drive, from where it is pumped out, Vodopyanova mixture is sent to a settling tank, where the clay is deposited in the sump drive, where it is pumped out and the clarified water is directed into the working scheme of water supply production wells, with selected fractions of sand and clay used in the process.
The disadvantage of the prototype method can be considered that it is focused on the use of gravity concentration methods in aquatic environment of ore, which is characterized through which their differences in the values of the weights heavy (ore), medium (sand) and light (clay) fractions.
For slurries of lignite or of peat, where the target products have a specific gravity close to 1 t/m3, need for improvement of the prototype method.
The task - to provide a common technological sequence of hydraulic techniques of production, delivery and enrichment of target products of the chemical processing of brown coal (peat).
The problem is solved as follows. In the way hydromechanical enrichment lignite products hydraulic borehole mining (HBM), unlike the prototype, jetting destruction deposits of brown coal produced in the process of formation of the extraction chamber with a vertical axis of symmetry in the form of a cylinder, cone or ball, creating swirling around the vertical axis of the circular flow of coal slurry and depositing the generated hydrocyclone heavy foreign inclusions and sand on the bottom of the excavation chamber, through the inlet of the coal slurry from a level above the level of the sludge, producing pipeline turbulent hydrotestosterone pulp from the extraction chamber to the place of preparation for enrichment, through hydro-mechanical treatment of the pulp with getting lignite suspension and osaditelno-sedimentation obtain the desired products of chemical raw materials in the form of a concentrate of humic acid and conc is strata bitumen by tangential flow burigoalini suspension in a conical basin sedimentation basin with subsequent sludge suspension and speed pumping sequentially precipitated fractions, enriched with humic acid and bitumen.
Description of the METHOD
The proposed technical solution to the problem solve the problem of the cost-efficient development of a number of coal deposits, having in its composition in addition to the layers that are available to develop a career way, still deep-seated layers with a large ratio, the development of which economically are neither open nor by underground way with the use of mines. The invention makes cost-effective development of such fields, allowing you to get from deep coal products for the chemical industry, while production in the career of energy raw materials.
Let us consider the improvement of the prototype method according to patent RU 2496980.
The results of geological exploration, as a rule, indicate the presence of coal seams interlayers and lenses made of sand. Sharp diamond-shaped crystal structure of quartz and its fortress grains give sand fraction extracted with brown coal, significant abrasive properties in the flow of slurry/slurry, leading to rapid deterioration of the metal of the critical structural elements of the downhole projectile, pumps, pipes and other equipment. Decided not to allow admission sand fraction at the inlet of skvazhin the th hydroporinae of the projectile. For this proposed process SRS to implement the effect gidrotsiklonirovaniya with usadkoy sand fractions at the bottom of the extraction chamber by forming the axially symmetric forms of the camera in the form of a cylinder or a cone or a ball and spin coal slurry around the vertical symmetry axis of the camera to create a circular flow and selection slurry for delivery to the fluorescent surface with a level lying above the level of precipitated on the bottom of the sand. Usually the resulting slurry is transported from the production well to map reclamation at a distance in the first tens of meters in the form of a turbulent stream.
During transportation of the pulp long-distance pipeline may be running sedimentation device, if the flow of the pulp laminarized. Then the fraction of the pulp with a large proportion may precipitate, reducing the flow area of the pipeline and wibawa from the target product. To avoid this proposed settlement, or established empirically places of Truboprovod to organize the turbulization of the flow of pulp through, for example, installation in the pipeline vortex crests.
Experience the SRS shows that the composition of the solid part of the slurry containing particles of size from fractions of a millimeter to the value of the parameter bore suction well hydroporinae shell - (5-50 mm).
Therefore, b is more effective enrichment pulp must be converted into a coal slurry with uniform granulometric composition of the dispersion phase. It is proposed to carry out by means of hydro-mechanical treatment of the pulp, for example by hydropool solid part of the slurry on a collision jets pulp in the inkjet hydroselenic. Fineness of grind of brown coal is governed by the recirculation of the pulp in the composition of the grinding jets and is set empirically based on the quality of raw materials and the effectiveness of its enrichment.
The procedure of enrichment obtained lignite suspension based on the principle of speed sedimentation (Rakovsky C. E., 1949), which is illustrated in Fig.1, where indicated: for the y - axis the content of the target products in %; x-axis-"O"-feedstock; I-V - rooms fractions sequentially precipitated from the composition of the lignite slurry; curve 1 - the yield of humic acids curve; 2 - output bitumen. It is seen that if the raw material has the property fractionated and selective sedimentation of aqueous suspensions of finely dispersed parts of brown coal by selective selection, consistently precipitated fractions it is possible to obtain the target products, more than twice enriched humic acids (fraction III) or bitumen (fractions IV and V).
In order to speed jigging carbohydrate-containing fractions I and II, having in its composition a little target products, when the conical basin sump organize the effect of Hydra is cyclosiloxane by tangential flow lignite suspension.
After filling the pool sucks lignite suspension with sequential precipitation of fractions I-V, which is stepped, as their deposition, is pumped from the pool in a separate storage tank, where they served as a chemical feedstock in the primary chemical processing. Fraction III, enriched to 60% humic acids, served in percolator on the extraction of alkaline solutions of humates with subsequent mechanical dehydration on the centrifuge and the pellet (washing and drying using a disc pelletizer and dryer installation. And fractions IV and V, enriched up to 20% bitumen, served to conventional Soxhlet extractions the extraction of gasoline amounts of substances (resins and Montan-wax) together with bitumen, which is separated from the extract in a cascade of reactors. While the tailings are mixed with depleted by the target product fractions I and II and can be used for gasification of the organic part and the ashing of the mineral in gas installation and subsequent hydrometallurgical processing of ash in the cascade of Pachuca and mineral balance for the production of building materials.
Description of the PROCESS LINE
The device is a prototype for the patent RU 2496980 is linked into a single technologically advanced, and the positive line side: plot of the SRS, plot
hydrotestosterone (GT) and the plot hydromechanical enrichment (GMOs). The division of the SRS consists of: excavation camera, well hydroponicly projectile wells with downhole equipment, drilling rig, land technical equipment (pumps, compressor, power plant and others). The division GT includes: wydany the pipeline map and reclamation. The division of GMOs are: cyclone, precipitation pool, pond clarified water, sand storage, warehouse clay.
The task is to improve the technical equipment of all three sections of the technological line for the implementation of continuous process primary hydromechanical enrichment lignite products hydraulic borehole mining in terms of the mining site.
The specified problem is solved as follows. Excavation Luggage in the reservoir is made in the form of a shape with axial symmetry (cylinder, cone, sphere), with any cross-sectional shape of a circle. Well hydroporinae the projectile, in addition to the face and radial hydro, provided with a tangential hydro. From the equipment site GT excluded map of reclamation. The pulp from wydanego the slurry line using the pump in the pipeline, equipped with shut-off and control valves, turbulization the flow. Plot GMOs includes the site of the hydro-mechanical preparation of pulp for enrichment through preparation of coal slurry, osaditelno-sedimentation pool with pump and storage tanks and, if necessary, block the primary chemical processing target products containing percolator, machine, granulator, dryer, extractor, gas generator. Hereinafter the invention is explained in Fig. 2, showing: 1 - deep brown-coal formation; 2 - axially symmetric excavation chamber; 3 - borehole hydroporinae projectile with tangential hydro; 4 - wells with downhole equipment; 5 - day surface; 6 - energy supply unit; 7 - drilling rig; 8 - pump-compressor equipment; 9 - shut-off and control valves; 10 - pumping station; 11 - slurry pipeline; 12 - turbulizing stream; 13 - site hydro-mechanical preparation of pulp for enrichment; 14 - osaditelno-sedimentary basin; 15 - pump issue of the target product; 16 - capacity for accumulation: the target product, enriched with humic acids; the target product, enriched bitumen; tailings; 17 - unit primary chemical processing of target products. The invention operates as follows.
Compressed rock pressure lignite mass of the deep p the Acta 1 is translated in the excavation chamber 2 in a movable state under the influence of jet streams downhole hydroporinae of the projectile 3. Improvement taking camera 2 is bottom-up, from the sole to the roof globalimage reservoir 1, through education produced space in the form of a figure of revolution with a vertical axis of symmetry, such as a cylinder, cone or ball.
Thus the face of the giant is developing a rock bottom excavation chamber 2, and the radial hydro downhole hydroporinae shell 3 - excavation walls of the chamber 2. When the amount of the mobile slurry of coal up to several cubic meters, are included in the work of the tangential hydro producing in a radial plane jet of water at a tangent to the cylindrical surface of the downhole hydroporinae shell 3, with a pressure sufficient to twist the total weight of the slurry into a circular flow around the axial axis of symmetry of the excavation chamber 2.
If the composition of the slurry hit the sand fraction of the seams or lenses, thanks to an organized hydrocyclone effect it will settle on the bottom of the excavation chamber 2. The selection of enriched hydromancy coal for its issuance on the surface 5 through the hole 4 is hidroelektrik or airlifting methods or their combination when placing suction hydroporinae downhole projectile at a level lying above the level dropped in the sediment of sand.
Ground complex technical equipment the equipment section of the SRS in the composition of energy supply installation 6, rig 7, pump and compressor 7 and other equipment provides the SRS process and can be moved along the section of the SRS when practicing the following excavation camera 2 within the mining lease.
When issuing on the surface 5 of the slurry is converted into pulp with more dispersed solid part, as on the suction side of the shell 2 and in the pipe bore well hydrotransport underground equipment 5 brown coal was subjected to crushing. Practice shows that the ratio of solids to liquid in the SRS process is in the range of values of T:W=1:5 to T:W=1:100.
Valves 9 installed on all operating pipelines, regulates the flow of floating product and, if necessary, overlap.
Pump station 10 is pumping the slurry to the slurry pipeline 11 with turbulization flow 12 installed on certain empirically or by calculation, the distance from the pumping station 10. Turbulator 12 may be performed, for example, in the form of vortex ridges (blades), welded to the inner wall of the pipe of the pipeline, passing the stream of pulp is to be designed, the vortex structures that prevent deposition of solid material on the bottom of the pipe.
When entering site hydro-mechanical preparation of the pulp to the enrichment of 13 solid part of the slurry ISM is lechesa to the state of the finely dispersed phase vocabularies suspension by hydropool on a collision jets pulp jet of hydroselenic or hydroshock or cavitation of hydroselenic.
In the process of getting the suspension of its composition can be adjusted to various additives that increase the efficiency and productivity of enrichment, by, for example, regulation of the specific weight of the target product.
Grilled suspension containing an amount of target products in high dispersion phase is fed tangentially at osaditelno-sedimentary basin 14 having the shape of a truncated cone, while filling which is implemented precipitation phase by rapid precipitation of fraction I and II due to the hydrocyclone effect, and after filling to implement the sedimentation phase by successive deposition after sludge suspension fractions III and IV, V, containing the target products.
As deposition fractions I-V precipitation consistently pumped by the pump 15 in the accumulation tank 16, where, if necessary, the products are fed into the primary unit of chemical processing target products 17.
An example of obtaining a feasibility result from use of the invention with the beneficiation of coal products hydraulic borehole mining, with the ability fractionated and selective sedimentation, can be represented by the following considerations, based on the previous experience of the SRS and the fortification of the state revenue service.
When processing the e in one month two extraction chambers is possible to produce up to 3.2 tons/month lignite raw material (solid material).
Depending on the quality of raw materials mined in the primary enrichment in osaditelno-sedimentation basin can be obtained with yields up to 65% of the target product, enriched to 60% humic acids, and up to 80% of the target product, enriched up to 20% of the amount of matter (bitumen, tar, wax). By primary chemical processing target products: extraction of alkaline solutions of humates and extraction of gasoline bitumen, resins, waxes can be obtained highly liquid marketable products:
- granular humates cost up to 100 thousand rubles/t;
bitumen cost up to 25 thousand rubles/t;
- Montan-wax (raw) value up to 80 thousand roubles/ton;
- resinous substances cost up to 10 thousand rubles/so
Monthly income from the sale of these products can be up to 50 million rubles/month, respectively, the annual income of 600 million rubles/year.
1. The way hydromechanical enrichment lignite products hydraulic borehole mining, including drilling of production wells monitor the destruction of minerals in the mining chambers deposits translated it into a movable state in the composition of the slurry, hydraulic lift well above the surface of the excavation cameras slurry in the form of pulp, hydrotestosterone pulp to the place of enrichment, gravity concentration of minerals in vodeistages, wherein the jetting destruction deposits of brown coal produced in the process of formation of the extraction chamber with a vertical axis of symmetry in the form of a figure of revolution: cylinder, cone or ball, creating swirling around the vertical axis of symmetry of the circular flow of coal slurry and depositing the generated hydrocyclone heavy foreign inclusions and sand on the bottom of the excavation chamber, through the inlet of the coal slurry from a level above the level of the sludge, produce pipeline turbulent hydrotestosterone pulp from the extraction chamber to the place of its preparation for enrichment, carry out hydro-mechanical treatment of the pulp with getting lignite suspension and osaditelno-sedimentation obtain the desired products of chemical raw materials in the form of a concentrate of humic acids and bitumen concentrate by tangential flow lignite suspension in a conical pool-sump, basin fill tank with subsequent sludge lignite suspension and speed pumping sequentially precipitating fine fractions by applying them in different storage capacity for collection of target products and tailings.
2. The method according to p. 1, characterized in that the target products and tailings serves as a chemical feedstock in the primary chemical PE is arabuko.
3. Technological line for the implementation of the method according to p. 1, including a section of a hydraulic borehole mining, land hydrotestosterone and plot hydromechanical enrichment, and part section of a hydraulic borehole mining includes the extraction chamber, well hydroporinae projectile wells with downhole equipment, ground equipment: drilling rig, pump and compressor equipment, power plant, warehouse lubricants, residential carriage house, the site of hydrotestosterone includes a pump station and pipeline, part of parcel hydro-mechanical enrichment includes equipment for gravity separation of minerals in the water environment drives the target products of primary enrichment of the mining ground, characterized in that the excavation Luggage in deep coal seam is made in the form of a figure of revolution: cylinder, cone, ball, well hydroporinae the projectile is provided with a tangential hydro, pipeline equipped with turbulization flow, the division hydromechanical enrichment included the site of the hydro-mechanical preparation of pulp for enrichment through preparation of coal slurry, conical osaditelno-sedimentation basin sedimentation basin with a pump for sequential lifting deposited the fine fractions of the composition of the dispersed phase lignite suspension, storage capacity for target products and tailings and, if necessary, block the primary chemical processing of target products.
4. Technological line for p. 3, characterized in that the plot hydromechanical enrichment included block primary chemical processing of target products.
SUBSTANCE: development method comprises opening-up of developed field reserves, ditch driving along the whole length of the production block, water flooding of the production block for disintegration of clay sand and their subsequent improvement by the production complex with installation of pressure of head hydraulic transportation and concentration plant. Before grooving of slits by cross-cut and longitudinal passes of slit-cutting unit, and also water flooding of the production block for disintegration of clay sand and their subsequent improvement, using experimental and analytical methods the bending compression and tension characteristics of high clayey sands in various locations of placer deposits are determined. The dynamics of change of elastic characteristics in these sections is determined, the correlation of response curve of resiliency of sand at water saturation of separate sections of the field with the relative wave resistance of sand in these sections is studied, and grooving of cracks at the distance from each other depending on the change of response curve of sand resiliency of at water saturation is performed.
EFFECT: achievement of high level of disintegration of clay sands difficult for wash-out, minimising of process losses of valuable component and decrease of mining expenses.
SUBSTANCE: invention relates to mining and can be used at mining operations. Proposed method comprises drilling the row of test wells to fit downhole hydromining units therein and to washout minerals therefrom by fluid jets forced by said units for pulp to be delivered to surface. Drilled pipes are inclined in the plane perpendicular to spread of said row. Wells are drilled in a row to distance equal to double efficient length of washout jet while rows are spaced apart through distance equal to efficient length of washout jet. Washout is performed from wells towards hanging layer to form the face with hemispherical cross-section perpendicular to well axis.
EFFECT: reliable egress of minerals, washout at dried face.
3 cl, 9 dwg
SUBSTANCE: invention relates to mining and can be used for hydraulic process of coal production. Main and auxiliary openings are driven via tandem and/or single faces that delineate blocks, barrier and safety pillars. Water is forced into faces by pump stations after cleaning at drainage complexes, mechanised settlers and/or water headers. The latter are located in intercommunicated chambers located at lower points of hydraulic site blocks and exiting into accumulation openings via which hydraulic transport is performed and rock is discharged. Abandoned pillars are liquidated after working of extraction pillar at backstroke in tow-side or single-side cuts. Water is cleaned at mechanised settlers and/or water headers with application of combination of water cleaning technical means and processes. For this, used are, for example, water impermeable partitions with water bypass nearby bottom, thin-layer clarifiers, flotation, coagulation, water processing by constant pulsating current, etc.
EFFECT: working of coal at complex mining and geological conditions, lower costs.
4 cl, 2 dwg
SUBSTANCE: invention relates to mining and can be used for hydraulic borehole mining of minerals. Proposed method comprises opening of the deposit via central and peripheral wells, placing the equipment therein and opening of adjacent chambers in layers, from bottom to top, starting from peripheral chambers. Prior to opening of the next layer through the entire bed thickness, undercut chamber is formed nearby soil of formed chamber and, parallel with said layer, of artificial ceiling of hardening material with inclination to centre. Shrinkage of fallen rock and filling of opened space with hardening material, opening and backfilling of central chamber at development of every chamber. After making of said artificial ceiling, several hydraulic cuts are made over the height of temporary wells. After formation of undercut space, rocks are hydraulically fractured from lower hydraulic cuts to force fluid into fracture unless rock failure into undercut space. Caved rock is partially flooded by hydraulic fracture fluid and giants to wash out the rock. As rock disintegrates, pulp is fed to the surface. As magazine level drops below design mark, hydraulic fracturing is repeated from hydraulic cut closest to stripped area, shrinkage, wash-out and discharge of pulp. Then, said jobs are repeated unless stripped area reaches aforesaid artificial ceiling. Now, shrunk rock is completely washed put, pulp is discharged and stripped area is filled.
EFFECT: selective extraction, decreased losses of minerals and costs, lower environmental effects.
8 cl, 5 dwg
SUBSTANCE: proposed method comprises exposure of producing formation by production well equipped with jetting equipment and jetting of minerals. Nearby soil of developed strata horizontal drain hole is drilled for preliminary drying of working zone and creating conditions for operation of jetting in air. Note here that minerals are broken by jetting, gravity and increasing rock pressure resulted from underground water level decrease. This allows mining the minerals at strength of 3-5 MPa. Light grade well is drilled in vertical plane with drain well inclined to mouth to allow outflow of hydraulic mix by gravity and accumulated in settler. Operation of wells of hydromining complex is performed in turns. First, drain well is activated. After water level drop below giant jet nozzle, giant jet is activated. Minerals are mined by intervals in direction from bottom to mouth of operation well and with withdrawal of casing tubes.
EFFECT: higher efficiency of hydromining.
SUBSTANCE: device comprises a machine with a hydraulic drive of reciprocal and return-rotary displacement, a two-channel tubular frame, a jet working element, a system to supply and distribute discharge liquid. The working element is equipped with the main and auxiliary jet-forming shafts with attachments and separated channels of discharge liquid supply to them. The main shaft is installed at the angle of 90°, and auxiliary shafts - at the angles of accordingly 45° and 3-10° to the longitudinal axis of the working element. Supply of the discharge liquid to channels is adjusted to a two-position distributor installed on the shaft of the hydraulic drive of return-rotary displacement.
EFFECT: simplified design, increased reliability of design, increased safety and efficiency of labour.
4 cl, 3 dwg
SUBSTANCE: first preparatory field mines are driven - level haulage and ventilation drifts with identical geodetic elevations, block crossdrifts and accumulating drifts with an inclination for a self-flow transport, stripping wells are drilled at the right angle to the bed plane, then, line cuts are washed by the hydraulic method. Level haulage and ventilation drifts stretch at identical geodetic elevations to form a ventilation scheme with horizontal depression. The area of line cuts is increased to initiate the process of caving of a hanging massif in a stope. The stope bottom is formed by washing of line cuts with an inclination providing for accumulation of caved coal through self-flow. The caved coal is magazined to control shift of side rocks in the stope. Chambers that are adjacent to the mined space are separated by barrier sight pillars. Oversize material is crushed, and coal mass is periodically discharged in dosing manner into the accumulating drift to provide for stope bottom movement up the pitch.
EFFECT: elimination of air leaks through a mined space, reduced contamination of coal by caved rocks, higher reliability of breaking face functioning and labour safety.
SUBSTANCE: system capable of using naturally reheated fluids produced from hydrothermal channels with the purpose to develop and use practically unlimited quantity of thermal energy contained in specified fluids. The system comprises the main system made of three parts: a funnel, pipe sections and any combination of several mechanical fixtures. The extracted thermal energy is used to drive steam turbines or other equipment for generation of power, which is transported to earth surface, water desalination or for any other production, requiring thermal energy. Besides, the specified thermal energy may simultaneously or separately be introduced into the extracting plant for extraction of resources in order to extract precious metals, mineral and chemical substances without system modification.
EFFECT: provision of a reliable mechanism for extraction of thermal energy from an ocean bottom and such precious resources as minerals, metals and chemical substances.
37 cl, 5 dwg
SUBSTANCE: method includes exposure and development of reserves by open-cut method, exposure, preparation and working-out the reserves in cut edges by underground method, transportation of rock mass and maintaining protective pillars. When eliminating the front of open mining at safety distance there performed is an exposure of underground mining unit in cut edge that includes several beds. There passed are ventilation and pulp-haulage drift ways that are cut by pulp-haulage roadway, and from the surface there drilled are wells along coal beds till pulp-haulage roadway. Broken working is done from well upwards and downwards by hydraulic or drill-hydraulic methods, and pulp transportation is done by wells and pulp-transportation mines till draining complex.
EFFECT: invention allows increasing the coefficient of mineral resources extraction and reducing environmental losses.
6 cl, 2 dwg
SUBSTANCE: method consists in mining of the deposit with wells, creation of a cavity, and destruction and change-over of mineral product to hydraulic mixture. Mixture is mixed and hollow rock is deposited at the bottom of the formed cavity; coal-water suspension is pumped out to the surface and transported via pipes to the consumer. In order to destruct mineral product, high methane content of coal beds is used; at that, methane content in the formed cavity is controlled; and when the most explosion hazardous concentration of methane, which is equal to 10%, is achieved in that cavity, explosion is initiated. After mineral product is delivered to the consumer, the whole cycle of works is repeated. In order to prevent methane ignition, its concentration is reduced to explosion hazardous one by releasing methane via wells to the surface to consumers.
EFFECT: invention allows increasing the safety and efficiency of mine works owing to using internal energy of mine rock massif.
FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to the oil-and-gas industry and aims at the application of associated petroleum gas at oil separation sites and for extinguishing of flares. The proposed method comprises low-pressure second separation stage gas recovery by its feed to a fluid-gas ejector inlet and its compression by a portion of rejected high-pressure bottom water bled from discharge of a pump unit cluster and directed to the ejector working nozzle. Note here that the water-gas mix from the ejector discharge is directed to a settler top part for preliminary discharge of formation water while a gas chamber of the said settler is communicated with a gas chamber of the first stage separator.
EFFECT: higher efficiency of gas separation from oil at the first separation stage.
FIELD: oil and gas industry.
SUBSTANCE: invention is related to survey methods of gas and gas-condensate wells, identification of their optimal process modes, and namely to identification of maximum fluid recovery at minimum energy costs, that is minimum pressure losses at different modes of gas-liquid flow. The method includes separation of the well product, measurement of gas discharge and volume, acceptable solid and liquid phases during measurement of liquid phase under separation pressure and upon degasifying in a separate vessel. Measurement of wellhead pressure and temperature is made in several steady modes before stabilisation of the measured parameters at disposal of the separated phases. Measurement of liquid volume and mechanical impurities is made in sequence: in separation mode without pressure release of gas-liquid flow before separation, in separation mode with pressure release in contracting devices (chokes) before separation, in separation mode with pressure release in an ultrasound separator. Maximum volume of the separated liquid is indentified against measured values at minimum hydraulic loss of the gas-liquid mixture. The separated phases are mixed up with the separated gas flow in all separation modes Separation of the liquid-gas mixture is made by even distribution of the separated phases at vertical porous structure and subsequent discharge of the accumulated liquid from it. Gas and liquid flows are directed to product separation upon the mode of ultrasound separation.
EFFECT: expanding the area of well survey at extensive separation modes for gas-liquid mixtures.
6 cl, 1 dwg
FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to analysis of gas and gas condensate deposits under various operating conditions. Proposed unit comprises gas-fluid mix separator and the device that follow: restrictor, separation product meter, pressure, temperature, gas flow and impurities meters and shutoff valves. This unit is arranged in carcass sized to carriers. Note here that separators and above mentioned devices are connected by pipes and include additional supersonic separator. Gas-fluid mix separator outlet is connected with supersonic separator outlet(s) while its purified gas outlet is connected with gas-fluid mix separator or purified gas discharge pipe.
EFFECT: decreased weight and sizes, accelerated preparation for measurements.
6 cl, 2 dwg
FIELD: oil and gas industry.
SUBSTANCE: oil emulsion is used with temperature less than temperature of associated petroleum gas per 15-30°C, associated petroleum gas is introduced into oil emulsion pipeline under pressure bigger per 0.1-0.2 MPa than the pressure in the pipeline, mixture of oil emulsion and associated petroleum gas is transported through the pipeline with a rise of oil transportation path with length not less than 8 m under pressure of 0.25-0.40 MPa at temperature of 4-10°C, thereafter the mixture of oil emulsion and associated petroleum gas is delivered to separation.
EFFECT: increase in quantity of recovered heavy hydrocarbons from associated petroleum gas.
2 dwg, 1 ex
FIELD: oil and gas industry.
SUBSTANCE: method for treatment of interlayer emulsified oil in tanks and vessels for water and oil preparation includes placement of emulsified oil to a subsurface holding tank, dosing of oil solvent to the subsurface holding tank in the ratio from 1:100 up to 1:1 of the emulsified oil volume, pumping by a pump through a metering unit to the surface tank, delivery of demulsifying agent in dose of 50-5000 g/t at section from the pump up to the surface tank into the flow of pumped liquid by a dosing unit, heating the mix of emulsified oil, solvent and demulsifying agent in the heat exchanger, passage of the heated mix of complicated emulsified oil, solvent and demulsifying agent in the surface tank through the coiled heat exchanger, deflector of the liquid flow with layering into oil with solvent and water, separation of mechanical impurities, separate recovery of oil with solvent, water and mechanical impurities, delivery of oil with solvent depending on the permitted level of water content in crude oil flow for further preparation as per the conventional scheme at the oil preparation plant or for repeat treatment to the subsurface tank.
EFFECT: providing controlled process and increasing degree of emulsified oil layering.
FIELD: oil and gas industry.
SUBSTANCE: plant comprises raw stock feed pipeline, a separation unit that consists of at least two separation stages, and each stage has an inlet for raw stock and discharges for associated petroleum gas and hydrocarbon mixture with water as well as discharge for oil-water emulsion, at least two stages of gas compression with discharges for gas and liquid hydrocarbons released during gas compression, at that discharges for associated petroleum of separation stages gas are connected to the compression stages by the respective pressure while gas discharge at each compression stage is connected to discharge of associated petroleum gas at the previous separation stage, a gas membrane separation unit with discharges for pretreated gas and permeate connected to gas discharge at the first gas compression stage and a hydrocarbon stabilisation unit with gas discharges for stabilisation and liquid hydrocarbons, which is connected to the discharge of liquid hydrocarbons released at gas compression stages.
EFFECT: invention provides complete utilisation of associated petroleum gas, optimisation of the plant process flow and reduction of capital and operational costs.
27 cl, 3 dwg
FIELD: process engineering.
SUBSTANCE: set of inventions relates to separator designed to separate the mix of different-density substances such as gas and fluid and to method of its assembly. Proposed gas cleaner comprises the case, rotor assembly, fluid flow passage, ledge extending upward from said case and around said passage, and branch pipe. Note here that said branch pipe can get in contact with said ledge so that its inner surface abuts on ledge curves surface to produce curved flow path surface.
EFFECT: more efficient separation.
2 cl, 41 dwg
FIELD: oil and gas industry.
SUBSTANCE: invention is related to method and device for inflow liquid separation from gas at well inflow compression. The method for inflow liquid separation from gas at well inflow compression using a gas separator equipped with inlet tube for well inflow and liquid outlet tube lies in entry of the well inflow to the liquid separator by means of one inlet tube ended inside the liquid separator; delivery of separated liquid from the gas separator through liquid outlet tube to gas from gas outlet tube at the mixing point located downstream the gas separator and upstream the compressor; and retention of separated liquid in the separator within the whole detention period in case of large quantity of liquid such as tides and plugs, in the well inflow to the liquid separator in order to exclude large content of liquid in the gas supplied to the compressor; spraying of the separated liquid upstream the compressor inlet or at the compressor inlet. The device for liquid separation from gas in the well inflow at its compression comprises the liquid separator equipped with well inflow inlet pipe, gas outlet tube and liquid outlet tube, the mixing point, which is located downstream the gas separator and upstream the compressor and supplies separated liquid from outlet tube for the liquid separator to gas from the gas outlet tube, and at least one nozzle for liquid spraying that is located upstream the compressor. At that location of the nozzle is selected in the following way: The liquid spraying nozzle is placed at the liquid outlet tube upstream the mixing point; the first nozzle is placed in the liquid outlet tube upstream the mixing point and the second nozzle is placed in the gas outlet tube upstream the mixing point; the nozzle is placed in the compressor inlet tube downstream the mixing point; the first nozzle is placed at the gas outlet tube upstream the mixing point and the second nozzle is placed in the compressor inlet tube downstream the mixing point; the first nozzle is placed in the liquid outlet tube upstream the mixing point, the second nozzle is placed in the gas outlet tube upstream the mixing point and the third nozzle is placed in the compressor inlet tube downstream the mixing point.
EFFECT: preventing entry of liquid to the compressor in too large concentrations and having too big size of drops.
37 cl, 11 dwg, 4 tbl
FIELD: oil and gas industry.
SUBSTANCE: method includes delivery of emulsified oil to an initial water separator, separation of water from emulsified oil in the separator and discharge of a part of water to waste water treatment facilities, further delivery of emulsified oil to buffer separating tanks, separation of gas and water from emulsified oil in the buffer separating tanks, heating of emulsified oil, hot water separation and desalination of emulsified oil and pumping oil to consumers. The liquid level in the buffer separating tank is kept within 40-60% of its height. Emulsified oil is fed to the buffer separating tank at the level of 50% of liquid fill, evenly distributed on the liquid surface along the entire length of the tank, and treated oil in full is delivered to a consumer.
EFFECT: increased separation efficiency of oil-water emulsion into oil and water at the stage of initial water separation and larger amount of separated associated petroleum gas.
FIELD: oil and gas industry.
SUBSTANCE: method includes delivery of emulsified oil to an initial water separator, separation of water from emulsified oil and discharge of a part of water to waste water treatment facilities, further delivery of emulsified oil to buffer separating tanks, separation of gas and water in the buffer separating tanks, heating of emulsified oil, hot water separation and desalination of emulsified oil and pumping oil to consumers. After the initial water separator, before delivery to the buffer separating tanks, emulsified oil is delivered to a collector where partial gas separation takes place. At that hydraulic lock is made by means of the collector in the way of emulsified oil from the initial water separator to the buffer separating tanks. Pipelines for water and gas discharge from the buffer separating tanks ensure equal hydraulic friction. The buffer separating tanks are filled per 40-60% by volume and installed at the biggest height of the whole process chart. After the buffer separating tanks before heating emulsified oil is delivered to a vertical tank and its hold and separation takes place here. When pressure increases in the collector a part of emulsified oil is diverted from the collector to an additional tank. When pressure decreases in the collector emulsified oil in the additional tank is sent to the input of the initial water separator.
EFFECT: provision of uniform delivery of the product from wells to the oil treatment plant and preventing failures in its operation.
SUBSTANCE: method involves performance of hierarchically real structural deep differentiation of a massif, a deposit (or its section), thus, pointing out the following: different-scale and heterogeneous operational sections based on the most characteristic mining-and-geological peculiar features, including peculiar features of components of mine rocks, and within their limits - ore (mining), ore-porous and rock (overburden) horizons, in them - ore bodies or their parts, operating and rock units, in them - real heterogeneous excavation elements divided into thin and extremely thin layers presented with amenable, temporary non-amenable, non-amenable and low-grade diamond-containing ore, or with rocks; automated production of advance, current and operational express information using a complex method representing a combination of forecasting of probabilistic spatial distribution of diamonds in ore units and in their elements and further direct automated identification of availability, position, quality and quantity of diamonds in thin ore layers by means of an X-ray fluorescence method. With that, crystals of diamonds are automatically extracted from thin ore layers by means of annular hole drilling of each of the crystals separately, without any disturbance of their integrity, and separated from mini-massif of each developed thin layer.
EFFECT: improving ecological and energy efficiency of development of diamond-ore deposits.