Method of construction and elimination of the earth storages-collectors

FIELD: oil-producing industry; gas-production industry; methods of construction and elimination of the earth storages-collectors of the boring wastes.

SUBSTANCE: the invention is pertaining to the field of the environmental protection, in particular, to the methods of construction and elimination of the earth storages-collectors of the boring wastes at completion of the oil-and-gas boreholes construction. The technical result of the invention is erection of the effective water-insulating screen, reduction of the time of evaporation of the water from the liquid phase of the boring wastes, decrease of the material inputs for realization of the method. The method of construction and elimination of the earth storages-collectors of the boring wastes provides for the digging of the ditch in the mineral soil, screening the ditch bottom and walls for the water insulation, filling-up of the earth storages-collector with the boring wastes, lamination of the boring wastes by settling into the thickened and liquid phases, the liquid phase pumping out, evaporation of the water from it, covering over the thickened stage with the mineral soil, conduct formation of the water-insulating screen by hydrophobization of the soil of the ditch bottom and walls by the soil impregnation in depth of 5-15 cm with the 0.1-1.0 % density microemulsion spontaneously formed at addition in the water of the reactant РДН-1 -concentrate of the asphaltic-resinaceous and paraffinic components of petroleum in the volatile hydrocarbon solvent with the subsequent compaction and aging. After the pumping out the liquid phase is sputtered over the flattened section of the land allocated for construction of the borehole, on which they preliminary put the mineral soil of 25-30 cm thick taken from the walled ditch. After the water evaporation it is used for hydrophobization of the soil together with the dried up boring wastes by sputtering of the above indicated microemulsion at its consumption of 5-10 l per m2 of the ground surface. Then the indicated soil is removed and fully is used for covering of the thickened phase of the boring wastes in the earth storages-collectors of the boring wastes.

EFFECT: the invention ensures erection of the effective water-insulating screen, reduction of the time of evaporation of the water from the liquid phase of the boring wastes, decrease of the material inputs for realization of the method.

2 ex, 3 dwg

 

The invention relates to the field of environmental protection, in particular to methods for earthen structures barns-storage of drilling wastes and eliminate them in the completion of oil and gas wells.

Known methods of earthen structures barns-storage of drilling wastes and eliminate them after the construction of the wells, including the passage of the pit in the mineral soil, the use of dredged material for embankment excavation, waterproofing cavity of the pit with a layer of clay, fill of pit drilling waste, segregation of waste drilling thickened and the liquid phase, removing water from the liquid phase by evaporation, the filling thickened drilling wastes mineral soil (Stetuha E., lutenco Century - Protection and land reclamation drilling enterprises of Ukraine. Zhur. Oilman, 1997, No. 9, p.15-16). The disadvantage waterproofing properties of clay screen does not provide the necessary protection of groundwater from toxic chemicals used for the preparation of drilling muds and discharge of buried waste drilling snowmelt and storm water. In addition, the evaporation of water out of sump is very slow (2-3 years)that does not meet the requirements of environmental legislation, according to which technical reclamation of land, ated is spent for the construction of the well, must be completed not later than one year after construction of the well.

The known method the elimination of drilling waste, including treatment of the liquid phase flocculant is a polyacrylamide (PAA) and the coagulant is aluminum sulfate with subsequent deposition in the barns suspended solids, removal and injection of the clarified liquid phase in a special depositing the well or intake formations and filling mineral soil barn with gelled drilling waste (Temporary regulations on environmental protection during the construction of the wells. - JSC "PermNIPIneft", Perm, 1992). The disadvantage is the high costs of treatment and disposal clarified drilling fluids. In addition, the regulations in the construction of barns-storage of drilling wastes in the water quality of the screen provided by the application on the bottom and the perimeter of the pit layer of clay paste that does not provide adequate protection of groundwater against pollution toxic substances contained in drilling waste.

There is a method of construction and operation of complex earth barns-storage of waste drilling and formation fluids, including the passage of the pits in the mineral soil, waterproofing them on an alternative basis metal plate or a synthetic film or reinforced concrete slabs or wood what it with bituminous coating, or compositions based clay, lime, cement, and their subsequent filling (instructions for environmental protection during the construction of wells for oil and gas on land. RD 39-133-94, M., NPO Burovaya Tekhnika, 1994). The disadvantage is the use for waterproofing pits expensive building materials and hardware, which will be subsequently buried in the pits with thickened or neutralized drilling waste.

A known way of eliminating the excavation of sump with the preliminary neutralization contained drilling wastes by mixing with Portland cement (Shishov, VA, Shemetov V.Y. About the curing of drilling muds and cuttings Portland cement. Proceedings of Unicrete, 1982, p 28-35), or a consolidating material, representing a departure from the cement industry (EN 2162918, 2001.02.10). The disadvantage is its high specific consumption of these consolidating powdered materials. In addition, mixing in the barns-storage of drilling wastes with consolidating powdered material using a traction device and a blade mixer inefficient that does not provide the necessary degree obezvrezhivaniya drilling waste.

Closest to the claimed is the method of construction and operation of sumps-drive drilling wastes, including text Kotlova the s in the mineral soil, waterproofing their cavity by a layer of clay, characterized in that out of sump waste drilling mud pumped into the empty barn drive, with its simultaneous treatment coagulant, flocculant and adding a consolidating material. After filling in the empty barn in the liquid phase at a depth of 0.1-0.3 m of pumping the waste drilling mud cease and barn stand until complete evaporation of water and formation at the bottom of the empty barn, in addition to waterproofing the screen from clay, impervious layer of coagulated particles drilling wastes and cement dust. Pumping and evaporation of liquid waste drilling fluids in an empty barn-drive repeat several times, stopping her for 15-20 days prior to the drilling of the interval in which the predicted neftegazopromyslovye. The thus prepared the barn-drive is used for storage of fluids (EN 2138612 C1, 1999.09.27). The drawback of this method is the need for structures on the land drainage sumps drives for used drilling fluids and formation fluids, which increases the cost of construction, operation and liquidation of the pit after the completion of well construction. In addition, the efficiency of this method depends on the length of p is the period, when the amount of evaporation of water from the empty barn exceeds the amount of precipitation. Most often this way form an impervious layer only at the bottom of sump fluids that does not solve the problem of dehydration of liquid drilling waste prior to its filling mineral soil and does not provide adequate protection of groundwater from pollution, because the probability of leaching of toxic substances from waste drilling snowmelt or storm water through the side wall of sump is maintained.

The task of the invention is a method of construction of earthen pits drives with the construction of their perimeter efficient water screen and evaporation in a short period of time the water from a liquid drilling waste, the elimination of pit after completion of the wells, while reducing material costs for the implementation of the proposed method.

The problem is solved in that in the proposed method of construction excavation of sump drilling wastes, including the passage of excavation, embankment excavation extracted mineral soil, the construction of the floor and walls of the pit water screen, filling the barn drilling waste separation on standing liquid and thickened the basics, the evaporation of the liquid phase, and the filling thickened phase mineral soil, as water screen use the layer gidrofobizirovannogo soil thickness sufficient to exclude capillary rise of the water phase. The hydrophobicity of soil carried by impregnation microemulsion spontaneously formed when dissolved in water reagent RDN-1 (TU 2458-001-21166006-97), which is a concentrate of asphalt-tar and paraffin oil components in a volatile hydrocarbon solvent. For the preparation of microemulsions reagent RDN-1 added to the water in the range of 0.1 to 1.0 wt.%. For education in the pit gidrofobizirovannogo soil layer, excluding the capillary rise of the water phase, produce handling, bottom and side surface of the trench microemulsion so that the depth of penetration of the microemulsion in the soil layer ranged from 5-15 see After soaking microemulsions treated soil surface is compacted, and after incubation for 24 h to evaporate the water and hydrocarbon solvent barn drive is ready to fill his drilling waste. With this method of forming a hydrophobic soil layer with a thickness of 5-15 cm in the construction of sump volume 2000 m3you will need about 60 m3water and about 600 kg (3 barrels) reagent RDN-1. Orientirovok is th price of 1 ton of reagent RDN-1 is about 10,000 rubles

After construction of well settled in the barn of drilling waste in the most suitable for the evaporation of water, the period of time, produce a pumping and spraying of liquid drilling waste aligned over a portion of soil, construction of the well, on which the pre-applied layer of mineral soil with a thickness of 25-30 cm, using for this purpose the soil of the embankment of sump. When this liquid drilling waste is sprayed over the layer of mineral soil at the leveled site should be absorbed in the layer of soil no more than 5-15 see the Evaporation of water from liquid drilling waste with this method applied on the layer of mineral soil occurs within 2-3 days. After evaporation of the water layer of soil with dried drilling waste for disposal (prevent transfer of harmful substances in the water) make them hydrophobic, for which the ground surface is treated with 0.1 to 1.0 wt.% microemulsion reagent RDN-1 in amounts of 5-10 l microemulsions per square meter of ground surface. Then, after evaporation of the water and hydrocarbon solvent dried gidrofobizirovannym the soil with a bulldozer removed from the aligned portion of soil and in full use for a charge of sump with the rest of it gelled drilling waste, at the same time, although the NGO is and their mixing with sleeps in the barn gidrofobizirovannym mineral soil. Backfilling of the barn so the soil and its subsequent compaction eliminates the removal of rain and melt water from abandoned barn toxic substances, which allows the coating on the compacted soil surface 25-30 cm layer of fertile soil, to complete reclamation of the site.

Example 1. The determination of the height of capillary rise of liquid in the soil before and after the hydrophobization.

Samples of the tested soil was brought to air-dry state were loaded into a glass column with a height of 40 cm, diameter 13 mm, were subjected to the seal by lightly tapping on the wall of the column until he reached a constant value of the height of the layer of soil, then for each soil layer determines the height of the capillary rise of liquid (water) after keeping in a vertical glass column with soil within 24 h, while the lower end of the glass column with the ground all the time was in contact with the aqueous phase. As a soil sample was collected fine-grained siliceous sand, the density of 2550 kg/m3, a porosity of 2.5% and a water absorption of 5.0%. Different degree of waterproofing sand was obtained by saturation of the microemulsion containing 0,05%, 0,1%, 0,5%, 1,0% and 5.0% (wt.) reagent RDN-1, then each of the systems were placed in a Petri dish, where, with periodic stirring, the system was brought on the air-dry state. In the control experiment the sand in the glass column was loaded without the waterproofing of the screen.

In other experiments, after loading into the column layer (10 cm) of sand without a hydrophobization loaded layer gidrofobizirovannogo sand (5 cm), then again a layer of sand without the waterproofing to the top of a glass column (40 cm). For comparison with the method of the prototype in a glass column after loading (10 cm) layer of sand without a hydrophobization loaded layer (5 cm) clay and then to the top of the glass column layer of sand without a hydrophobization. Figure 1 presents a plot of the height of capillary rise of fresh water in the soil (sand) without waterproofing screen (experiment 1), with waterproofing screen presents a 5 cm layer of soil of different degree of hydrophobization (experiments 2-6), and hydrolyzing the screen presents a 5 cm layer of clay (experiment 7).

As follows from figure 1, the layer gidrofobizirovannogo soil thickness of 5 cm, obtained by treatment of the soil 0.05% microemulsion reagent RDN-1, reduces the height of capillary rise of water from 35 cm (height of capillary rise of water in the control experiment 1) to 18 cm (experiment 2), i.e. reduces the filtration properties of the soil almost in 2 times. Similar to the thickness of the layer gidrofobizirovannogo soil obtained by treatment with 0.5% microemulsion reagent RDN-1 reduces the height of capillary rise of water up to 10 cm (experiment 3). Increase to which ncentratio reagent RDN-1 in the microemulsion to 1.0% allows get gidrofobizirovannym the ground, reducing the height of capillary rise of water up to 1-2 cm (experiment 4), and when processing of the soil 5,0% microemulsion of the RDI-1 obtained gidrofobizirovannym soil layer of 5 cm thick, almost completely eliminates the capillary rise of the water phase. Use as a waterproofing screen 5 cm clay layer (6) has lowered the height of capillary rise of water from 35 cm to 5-6 cm, which corresponds to the findings about the lack of efficiency in practice such waterproofing screens.

Thus, from figure 1 it follows that to create a 5 cm layer gidrofobizirovannogo soil, excluding the capillary rise of the water phase, the contents of the reagent of the RDI-1 in the microemulsion should be not less than 1.0 wt.%. Use for this purpose, micro-emulsions with a higher concentration of reagent RDN-1 is not rational, because in case of soil treatment microemulsion depth of its penetration into the soil may reach 10-15 cm or more, which leads to the formation of hydrophobized layers thicker than 5 cm, which will significantly increase their waterproofing properties. This fact is proved by the results shown in figure 2, showing the dependence of the height of capillary rise of water depending on the thickness of the soil layer under different degree of hydrophobization, from which it follows that the formation gidrofobizirovannogo soil layer thickness is Oh 10-15 cm, excluding the capillary rise of the water phase, the contents of the reagent of the RDI-1 in the microemulsion should be in the range of 0.1 to 1.0 wt.%.

Example 2. The kinetics of evaporation of liquid drilling waste in the initial state and when the application of a uniform layer on the surface of the soil.

For testing the proposed method were used liquid drilling wastes with a content of 15.6 wt.% the dry residue. Determination of the kinetics of evaporation of water from liquid drilling waste was carried out in air at a temperature of 20°With a change (decrease) mass (100 g) drilling waste, placed in a Petri dish with an area of evaporation 0.03 m2(experiment 1) and the same mass of liquid mud dropwise applied onto a 2 cm layer of the soil (sand), evenly distributed on the glass surface with an area of 0.25 m2(experiment 2).

From the relative position of the curves shown in figure 3 implies that the evaporation of water from liquid drilling muds, deposited dropwise on a 2 cm layer of the soil, almost fully completed in 2-3 days, while from a liquid drilling fluids in the Petri dish, during this time vanished no more than 3-5 wt.% water. The latter can be explained not only by the fact that in experiment 2 size of the evaporation of liquid drilling mud almost an order of magnitude exceeded the size of the evaporation of liquid drilling waste than in experiment 1, but also the fact that in experiment 2 liquid drilling waste is s, soaking into the ground, were distributed in a thin layer on the surface of particles of the solid phase, which is several orders of magnitude increased the total area of the evaporation of the aqueous phase.

Thus, the use in the construction of earthen barns-storage of drilling waste the proposed method can improve not only the effectiveness of the protection of groundwater from harmful substances contained in the waste drilling, but with less effort and in a shorter time, after completion of the wells, to eliminate these sources of environmental pollution.

The method of construction and the elimination of pit storage of drilling wastes, including the passage of the pit in the mineral soil, the construction of the floor and walls of the pit water screen, filling of sump drilling waste, segregation of waste drilling insisting on thickened and the liquid phase, the pumping of the liquid phase, the evaporation of water from it, filling thickened phase mineral soil, characterized in that the produce obalovanie pit crushed mineral soil, carry out the construction of the water screen, the hydrophobicity of the soil of the bottom and walls of the pit by impregnation at a depth of 5-15 cm 0,1-1,0%microemulsion spontaneously formed when added to water reagent RDN-1 - Ko is centrata of asphalt-tar and paraffin oil components in a volatile hydrocarbon solvent, with the subsequent consolidation and tenacity, after pumping of the liquid phase is sprayed over cleared land allocated for construction of the well, which is pre-applied 25-30 cm of mineral soil from the embankment of the pit, after evaporation of the water because it produces hydrophobic soil with dried drilling waste by spraying the above microemulsion when the flow rate of 5-10 l / m2the ground surface, then the specified soil removed and in full use for filling in the barn-drive thickened phase of drilling wastes.



 

Same patents:

FIELD: oil extractive industry, in particular, methods for extracting a watery oil pool, possible use for increased oil recovery of fractured formations with heterogeneous penetrability.

SUBSTANCE: method for controlling water-flooding front of oil formations includes stopping at least one force well and performing technological exposure for restoration of current bed pressure in bottom hole zone of well with following forcing of fringes of filtration-limiting compound, while increasing forcing pressure and changing concentration of compound in each fringe. Aforementioned compound is received by mixing a composition, containing, in percents of mass: polymer 0,005-2,0, sodium silicate 0,1-10,0, latex 0,01-15,0, fresh water - the rest, and mineralized water with ratio of volumes changing within limits 1:1-1:30, while feeding pressure is increased no more than by 1%, not exceeding the maximal allowed pressure for each individual well.

EFFECT: increased oil recovery of formations due to increased efficiency of isolation of waters in fractured and heterogeneous beds due to creation of a durable hydro-screen, making it possible to exclude watery zones from extraction and to extract oil-saturated, previously unused zones by means of following water-flooding.

2 ex, 1 tbl

FIELD: mining industry.

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EFFECT: possible backfill of extensive fractured systems with active influx of water, increased hardness of backfill material, decreased material costs of reinforcement of fractured rocks, removal of water influxes in mines.

2 ex

FIELD: technology for increasing recovery of hydrocarbons from foliate geological formations, which contain absorbed condensed gaseous hydrocarbons, by processing such geological formations with dehydrating compositions, containing surfactants, which cause dampening of geological formation with oil or leave aforementioned formations dampened with oil.

SUBSTANCE: methods may be used for excitation of influx of fluid substance from geological formation into well, or hydro-acid fracture, or hydraulic fracture, during maintenance or major repairs and when increasing influx from natural cracks or from geological formations never subjected to influx stimulation.

EFFECT: increased water removal efficiency, minimization of migration of low dispersion particles, increased extraction of hydrocarbons from underground formations, containing absorbed and compressed gaseous hydrocarbons.

3 cl, 4 ex, 6 tbl

FIELD: oil and gas production.

SUBSTANCE: invention relates to polymer drilling fluids used in boring of gas and oil wells, in particular to clay-free biopolymer drilling fluid, which are used when performing boring under complicated mining and geological conditions, including those in chemogenous deposits and at high borehole temperatures and also in cases of directional wells and horizontal well sites. Biopolymer drilling fluid of invention contains, wt %: polymeric filtration reducer: polyanionic cellulose or carboxymethylcellulose, or oxyethylcellulose, or hydrolyzed polyacrylonitrile, 0.1-1.0; xanthane-type biopolymer, 0.2-0.5; fatty acid ethylenediamides: condensation product of ethylenediamine and phosphatide concentrate, 0.05-3.0; alkali metal humates: coal-alkali reagent or humate-potassium reagent, 3,0-6.0; alkali and/or alkali metal salts: KC, NaCl, CaCl2, MgCl2; bischofite, 3.0-40.0; and water in balancing amounts.

EFFECT: reduced amount and concentration of components required to prepare drilling fluid at the same inhibitory, lubricating, filtration, and antiadhering properties, improved structural-rheological properties, heat and salt resistance, and reduced harmful environmental effects.

2 tbl

FIELD: petroleum industry.

SUBSTANCE: invention relates to a gel-forming composition comprising zeolite component for production of synthetic detergent agents, hydrochloric acid and water and, additionally, calcium oxide in the following ratio of components, wt.-%: zeolite component for production of synthetic detergent agents, 6-10; hydrochloric acid (as measure for dry matter), 6-14; calcium oxide, 0.7-1.3, and water, the balance. Invention can be used in regulation of filtering holes of petroleum beds and in major repairs of holes. Invention provides increasing rate of gel-formation.

EFFECT: improved and valuable properties of composition.

1 tbl, 1 ex

FIELD: petroleum industry.

SUBSTANCE: invention relates to a gel-forming composition comprising zeolite component for production of synthetic detergent agents, hydrochloric acid and water and, additionally, calcium oxide in the following ratio of components, wt.-%: zeolite component for production of synthetic detergent agents, 6-10; hydrochloric acid (as measure for dry matter), 6-14; calcium oxide, 0.7-1.3, and water, the balance. Invention can be used in regulation of filtering holes of petroleum beds and in major repairs of holes. Invention provides increasing rate of gel-formation.

EFFECT: improved and valuable properties of composition.

1 tbl, 1 ex

FIELD: oil and gas extractive industry, in particular, technology for creating bottomhole filters in deep wells cased by columns, opening unstable weakly cemented rocks of collector; possible use in gas and oil deposits, underground gas reservoirs and grounds for industrial drainage disposal; especially useful during major repairs at gas, oil, water-collecting and force wells, operation of which is complicated due to sand flow.

SUBSTANCE: in accordance to method, well is expanded. Limits of filter-adjacent zone are determined in interval of productive bed of collector. Preliminarily, sand plug is washed from well borehole to artificial bottomhole. Technological window is cut in interval of productive bed of collector in filter-adjacent zone with capture of 1-3 meters of thickness of fluid-resistant impenetrable beds with full destruction of body of operation column and cement ring. Then in interval of technological window well borehole is expanded. The latter is expanded to diameter, exceeding internal diameter of operation column not less than 4-5 times. Expanded well borehole is gradually filled with cementing solutions. Into lower section, water-impenetrable cement solution is fed, to middle-main section reinforced penetrable compound is added, and upper section is filled with light cement solution. After hardening of cement solutions, these are drilled up to the artificial bottomhole in sump. Drilling is performed with expansion of well borehole in interval of productive bed of collector up to diameter, exceeding diameter of operation column 2-3 times, but less than well diameter expanded in interval of technological window for 2-3 times the internal diameter of operation column.

EFFECT: prevented collapse of skeleton of weakly cemented rock during well operation.

2 cl, 3 dwg, 1 tbl

FIELD: backfill solutions used during cementing of casing strings of gas, gas-condensate and oil wells, abnormal due to presence of weakly connected permafrost rocks prone to hydro-disruption.

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3 tbl, 1 dwg

FIELD: oil-producing industry; chemical industry; methods of production and application of the stable liquid suspension compositions.

SUBSTANCE: the invention is pertaining to the liquid suspension compositions, which may be used as the additives in the water-containing liquids, and to the methods of production and application of such liquid suspension compositions. The technical result of the invention is provision of stability of the liquid suspension composition, which is ecologically favorable for usage in development of the oil fields. The non-aqueous suspension containing the non-soluble particles dispersed in the non-aqueous liquid medium containing the dissolved suspension additive, in which the indicated non-aqueous liquid medium is sampled from the group consisting of glycols, polyglycols, glycol ethers, the glycol esters and the mixed glycol ethers and esters - the esters of the glycol ether, and in which the pointed suspension additive is sampled from the group consisting of hydroxypropylcellulose, ethylcelluloses, polyvinylpyrolidone, polyacrylic acid and polyvinylpyrolidone copolymers and an acrylic acid. The method of production of the non-aqueous suspension providing for mixing of the non-soluble particles, the indicated suspension additive and the indicated non-aqueous liquid medium the suspension additive is added to the part of the non-aqueous liquid medium, intermix till production the solution, water dilute the solution by the non-aqueous liquid medium till production of the desirable concentration of the suspension additive, then add the non-soluble particles. The method of treatment of any oil well or gasser or any adjacent to it subterranean formations provides for the stages of mixing of the indicated suspension with the water-containing solution and injection of the so formed mixture into the well bore.

EFFECT: the invention ensures provision of stability of the liquid suspension composition, which is ecologically favorable for usage in development of the oil and gas fields.

25 cl, 2 ex, 2 tbl

FIELD: oil-producing industry; chemical industry; methods of production and application of the stable liquid suspension compositions.

SUBSTANCE: the invention is pertaining to the liquid suspension compositions, which may be used as the additives in the water-containing liquids, and to the methods of production and application of such liquid suspension compositions. The technical result of the invention is provision of stability of the liquid suspension composition, which is ecologically favorable for usage in development of the oil fields. The non-aqueous suspension containing the non-soluble particles dispersed in the non-aqueous liquid medium containing the dissolved suspension additive, in which the indicated non-aqueous liquid medium is sampled from the group consisting of glycols, polyglycols, glycol ethers, the glycol esters and the mixed glycol ethers and esters - the esters of the glycol ether, and in which the pointed suspension additive is sampled from the group consisting of hydroxypropylcellulose, ethylcelluloses, polyvinylpyrolidone, polyacrylic acid and polyvinylpyrolidone copolymers and an acrylic acid. The method of production of the non-aqueous suspension providing for mixing of the non-soluble particles, the indicated suspension additive and the indicated non-aqueous liquid medium the suspension additive is added to the part of the non-aqueous liquid medium, intermix till production the solution, water dilute the solution by the non-aqueous liquid medium till production of the desirable concentration of the suspension additive, then add the non-soluble particles. The method of treatment of any oil well or gasser or any adjacent to it subterranean formations provides for the stages of mixing of the indicated suspension with the water-containing solution and injection of the so formed mixture into the well bore.

EFFECT: the invention ensures provision of stability of the liquid suspension composition, which is ecologically favorable for usage in development of the oil and gas fields.

25 cl, 2 ex, 2 tbl

FIELD: mechanical engineering.

SUBSTANCE: invention relates to pneumatic transportation of loose materials, namely, to plants with different length of material lines laid to place of destination. Proposed pressure pneumatic transport plant contains settling chambers with suction pipelines, each being equipped with pneumatic lift with input branch pipe and output pipeline, and hopper-accumulator to receive material from each settling chamber. Input branch pipe of pneumatic lift of each settling chamber is coupled with conical lower part of settling chamber, and output pipeline of pneumatic lift is coupled with cyclone-unloader. Exhaust branch pipe of cyclone is connected with upper part of settling chamber, and chute of each cyclone-unloader communicates, in its lower part, with jet feeder which is connected by corresponding main transport line with hopper-accumulator. Diameter of chute is equal to or is greater than diameter of input branch pipe of pneumatic lift, and height L of chute of cyclone-unloader and its diameter Deq are at ratio L/ Deq≤40.

EFFECT: enlarged technological capabilities of plant owing to increased distance of transportation of material between settling chambers and hopper-accumulator.

1 dwg

Feeder // 2289540

FIELD: construction materials production, chemical, food, pharmaceutical and other industries.

SUBSTANCE: invention relates to devices for metering out loose material susceptible to arch forming. Proposed feeder consists of hopper, housing with charging and discharge branch pipes, rotor with perforated blades and hollow shaft, sealing members and filter. Pipe with rectangular form hole in its wall is installed inside shaft. Said hole communicates with holes in rotor blades being directed to side of charging branch pipe. Sealing members are installed between inner wall of shaft and side surface of pipe precluding air passing to blades outside charging branch pipe.

EFFECT: reduced pressure and flow rate of air delivered for arch breaking, reduced dusting of loose material coming out of feeder.

2 cl, 3 dwg

FIELD: chemical, food, construction material production and other industries, technological processes at transportation of loose materials.

SUBSTANCE: invention relates to method of pneumatic transportation of loose materials in medium flow. Proposed method includes charging of material in pipeline and impulse delivery of transporting medium to zones of pipeline successively along length of pipeline in direction of transportation at angle to axis of pipeline through zone of impulse delivery along screw line. Hot air is delivered into pipe connecting feeder and pipeline along screw line at angle to axis of pipe, and material flow divider is installed in pipe by means of which material is directed along walls of pipe.

EFFECT: increased capacity and reliability of pipeline, prevention of material losses caused by deposition of material on walls of pipeline.

3 dwg

FIELD: mechanical engineering; packing.

SUBSTANCE: proposed device for packing pipes in hex packs contains stationary installed rack with retainer, and roller conveyor in line of which hex pockets are installed. Each pocket contains post with stationary side surface and upper side face attached for movement to side surface, movable base and movable lower and upper side faces arranged at other side of post, and rack-stacker with meter secured in upper part of post. All faces of each pocket are provided with built-in rollers. One of upper faces is installed for movement in guides of post, and opposite upper and lower faces are installed in guides of movable base. Upper side face is hinge-connected with lower side face by turning drive. Rack-stacker is installed for movement in post guides. Length of rollers forming upper side face installed in post is equal to height of pocket proper.

EFFECT: increased capacity of forming bay.

7 dwg

FIELD: pneumatic equipment used in enterprises of construction, chemical and metallurgical industry, as well as in enterprises for storage and processing of grain and other powdered or fine granulated material.

SUBSTANCE: pneumatic transportation system for transportation of bulk material has feeding hopper and air conveyor connected to satellite type compressed air pipeline, accumulation hopper, and consumption hopper. Air conveyor connects said hoppers and consists of sections designed so as to create pressure difference therein and provide for individual regulation of material velocity in each of said sections. Each of air conveyor sections has tube with air chamber and unit of sleeve-type filters with air release valve adapted for individual regulation thereof. Air chamber for creating fluidized bed of material to be transported is connected with compressed air satellite type pipeline through adjustment valve and consists of plated spring for stretching of separating fabric, and end stoppers. Plated spring and separating fabric are adapted to be connected by means of profiled edges thereof which are joined to form lock connection.

EFFECT: increased efficiency in transportation of material at regulated velocity in upward direction along inclined surface to different height marks.

4 cl, 4 dwg

FIELD: dosing of bulk materials tending to arching, used in metallurgical, construction, chemical, food-processing, pharmaceutical and other branches of industry.

SUBSTANCE: method involves dosing powders tending to arching with the use of sluice feeder by periodic supplying of air for powder arch destruction through feeder blades at a frequency of f ≥ fp·n, but not in the excess of 10 Hz, and porosity of S ≤ n·fp/2f, where fp is rotational frequency of feeder rotor, n is number of feeder blades; initiating air supplying procedure at the moment blade end goes past leading end of charging opening in direction of rotation of rotor.

EFFECT: reduced consumption of air supplied to blades, decreased dusting and grinding of powder particles for enabling more precise dosing of powder.

1 tbl

FIELD: mining industry; underground face and gate conveyors.

SUBSTANCE: proposed section of trough for underground face and gate conveyors contains upper and lower runs for driving scrapers of scraper chain, transport bottom separating them, connecting devices and two sides, each including rolled U-shaped steel section with one intermediate web and two flanged webs which are interconnected by at least one shaft arranged at approximately half of height and welded to vertically projecting intermediate web of U-shaped steel section. Said U-shaped steel sections pointed outside by their horizontal flanged webs are interconnected. Upper run has two separated rolled preferably L-shaped or T-shaped side sections being welded to transport bottom by upper webs. Sheet connecting U-shaped steel sections rests, through straps forming side guides for lower run, on sheet of bottom welded with lower flanged webs.

EFFECT: increased service life of section of trough, cut down cost of manufacture, simple design of trough, possibility of use on high capacity modern conveyors.

20 cl, 5 dwg

FIELD: mining industry; underground face and gate conveyors.

SUBSTANCE: proposed section of trough for underground face and gate conveyors contains asymmetrical sides consisting of cast parts interconnecting on intermediate web by welded-to sheet, which, projecting outside from intermediate web, include upper molded-to flanged projection and lower to-to flanged web and to-to foot flange projecting inwards which partially limits from side a lower run to drive scrapers of scraper chain and to which sheet of bottom closing downwards lower run is welded. Cast part is provided at least one step on inner side of intermediate web mainly at half of height between flanged web and flanged projection. Said step is used to support and to weld-to intermediate sheet of bottom. Intermediate web and foot flange form profiled reinforcement under step. Intermediate web over step limits from side the intake space for upper run containing rolled side sections welded with transport bottom.

EFFECT: increased service life of trough section, cut down cost of manufacture.

28 cl, 6 dwg

FIELD: metallurgy.

SUBSTANCE: invention relates to devices for packing nonferrous metal pigs. Proposed device contains pig feeding mechanism, pig row shaper with turnover device, receiving table and truck installed on support frame, pack forming mechanism consisting of grip with clamp installed for turning around vertical axis and vertical travel under action of drive, driven truck installed on carrying frame and conveyor-accumulator. Pig feeding mechanism is made in form of chain conveyor with fixed inclined roller table. Turnover device is made in form of two rodless pneumatic cylinders arranged symmetrically relative to sides of support frame. Clutch is installed on top of first pneumatic cylinder with pull-pack spring and stop is rigidly secured on shaft of clutch. Turnable pneumatic cylinder is arranged on top of second pneumatic cylinder with auxiliary pneumatic cylinder fitted on its shaft. Stop is rigidly secured on rod of auxiliary pneumatic cylinder. Truck at ends of which said rodless pneumatic cylinders are fastened by carriages is arranged under receiving table and is installed by means of rollers of guide rails rigidly secured on support frame. Rodless pneumatic cylinder is installed on support frame in center under track. Said pneumatic cylinder is connected by carriage with base of truck. Grip contains, in its lower part, two horizontally arranged pneumatic cylinders and pressure plate hinge-secured by means of four hydraulic shock absorbers on clamp. Carrying frame is provided with hydraulic shock absorbers installed symmetrically on its opposite sides.

EFFECT: improved reliability of device and quality of formed pack.

4 dwg

FIELD: metallurgy.

SUBSTANCE: invention relates to devices for packing nonferrous metal pigs. Proposed device contains pig feeding mechanism, pig row shaper with turnover device, receiving table and truck installed on support frame, pack forming mechanism consisting of grip with clamp installed for turning around vertical axis and vertical travel under action of drive, driven truck installed on carrying frame and conveyor-accumulator. Pig feeding mechanism is made in form of chain conveyor with fixed inclined roller table. Turnover device is made in form of two rodless pneumatic cylinders arranged symmetrically relative to sides of support frame. Clutch is installed on top of first pneumatic cylinder with pull-pack spring and stop is rigidly secured on shaft of clutch. Turnable pneumatic cylinder is arranged on top of second pneumatic cylinder with auxiliary pneumatic cylinder fitted on its shaft. Stop is rigidly secured on rod of auxiliary pneumatic cylinder. Truck at ends of which said rodless pneumatic cylinders are fastened by carriages is arranged under receiving table and is installed by means of rollers of guide rails rigidly secured on support frame. Rodless pneumatic cylinder is installed on support frame in center under track. Said pneumatic cylinder is connected by carriage with base of truck. Grip contains, in its lower part, two horizontally arranged pneumatic cylinders and pressure plate hinge-secured by means of four hydraulic shock absorbers on clamp. Carrying frame is provided with hydraulic shock absorbers installed symmetrically on its opposite sides.

EFFECT: improved reliability of device and quality of formed pack.

4 dwg

FIELD: municipal engineering, in particular, processing of solid domestic wastes, preferably containerized and industrial garbage of municipal and other piles, may be used in low populated areas.

SUBSTANCE: mobile complex for processing of solid domestic wastes has at least one vehicle for transportation of containers, at least one lift truck, and at least two semi-trailers, each as part of trailer rig. Sorting conveyor and climatic cabin for sorters are mounted on one semi-trailer. Cabin for sorters is furnished with eight working seats, four at each side. Each of said working seats is equipped with receiving tray adapted for receiving of secondary material and positioned so as to be tilted outside of climatic cabin for loading and returning to initial position followed by hermetic sealing of mounting opening. Packing press, diesel-generator, general service premise and slipper for packs are positioned on other semi-trailer.

EFFECT: improved mobility of complex, simplified and cheaper solid domestic waste processing operation, improved ecological safety for environment during processing operation, and increased efficiency.

7 cl, 4 dwg

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