Method and device for additional filling of developed chambers
FIELD: oil and gas production.
SUBSTANCE: method includes installation of a manifold pipeline and supply of a filling mixture along it. Besides, the filling mixture is supplied along the manifold pipeline to the height of at least 1.7 m to the roof level. Afterwards the direction of the filling mixture flow movement from the vertical to the horizontal one by means of a device for additional filling of developed chambers, which makes it possible to save the energy of a mud torrent movement. The device for additional filling of developed chambers comprises a nozzle and is equipped with extension pipes. Supports with step-bearings are installed under extension pipes. Length of extension pipes does not exceed 1/5 of a developed chamber length. Height of supports is identified depending on the angle of the filling mixture spread α.
EFFECT: improved completeness and evenness of the developed space filling with the filling mixture along the whole perimetre of the chamber.
2 cl, 4 dwg
The invention relates to the mining industry and can be used in underground mining with the mined-out space.
There is a method of DataBlade exhaust chambers hardening mixtures with underground mining of mineral deposits, consisting in drilling wells and supply wells hardening filling mixture under the roof of the chamber . The disadvantage of this method is the significant cost of the drilling of many wells, and the installation and dismantling of pipelines.
There is a method of DataBlade exhaust chambers hardening mixtures with underground mining of mineral deposits, consisting in drilling wells, supply wells hardening filling mixture under the roof of the chamber, lowering after filling of the chamber to the wellhead on her camera of explosives and detonations and additional filing after this hardening backfill mixture formed from the explosion crater . The disadvantage of this method is the limitation on safety during blasting operations.
The closest way is "the Way to fill out space hardening tab", which are as follows: in the roof cleaning formulation is formed filling the gap to the ora attached backbone of filling the pipeline, feeding filling material, which is from the main line enters the slit, which results in clean production, filling her in the direction of the pipeline to the dead end of the treatment formulation . The disadvantage is incomplete and uneven filling of the chamber opposite from the pipeline end.
The famous "Filling the pipeline", which is the closest technical solution of the invention. Filling the pipeline consists of a horizontal rod with pipes. They fixed crosswise on the circumference of the rod and have a variable diameter, increasing to the free end of the rod, i.e. in the direction of the expiration of the mixture along the length of the pipeline. The upper tubes are oriented, respectively, the configuration of the roof. This provides a uniform expiration of the mixture throughout the volume of the chamber. The upper tubes are made with a different length. Stowing mixture comes into becoming, then at the bottom, lateral and top nozzles, ensuring the completion of all cameras . Disadvantages are that the pipeline cannot be used for backfilling cameras great length, because with increasing the length of the pipeline will occur to any significant deflection or damage to the rod. As well as the limitation for use in vertical filing filling mixture,
Task n the present invention is to improve the completeness and uniformity of filling of goaf stowing mixture around the perimeter of the chamber.
The technical effect that allows you to solve the problem, is to reduce costs through the use of an already established Central vertical pipe, and use an inexpensive device, which after DataBlade not disassemble.
The problem is solved by the proposed method DataBlade waste cameras, including the installation of a pipeline and feed it filling mixture. And filling the mixture is fed by pipeline to a minimum height of 1.7 m at the roof level, and then change the direction of flow of the filling mixture from the vertical to the horizontal by means of the device for DataBlade waste cameras, allowing you to save energy of motion of a debris flow.
To achieve the technical result of the proposed device for DataBlade exhaust chambers, consisting of a nozzle, and further provided with a tubular nozzle, which is installed bearings with thrust bearings, and the length of pipe nozzles does not exceed 1/5 of the length of the waste chamber, and the height of the supports is determined depending on the angle of spread filling mixture of α.
1 shows a General view of the device from the front, figure 2 - side view, figure 3 is a top view, figure 4 - location of the device in the chamber.
Device for DataBlade rabotnik cameras consists of a pipe 2 cruciform shape, pipe nozzles 3, which are secured on the pipe for the implementation of horizontal movement of the filling mixture along the chamber; tubular nozzles 4, welded to the pipe and intended for horizontal movement of the filling mixture across the camera; supports 5 and 6 with pads that serve to maintain the entire structure and is made of standard pipe. The supports 5 and 6 with thrust bearings perform various heights depending on the angle spread filling mixture α. The length of horizontal pipe does not exceed 1/5 of the length of the chamber.
The proposed device stowing mixture is fed at a certain distance from the vertical pipe in the longitudinal and transverse directions for uniform DataBlade it to the roof.
The method is as follows. After filling the filling chamber 7 (figure 4) backfill with a mixture of 8 with pipeline transport of filling solution up to a minimum height of 1.7 m at the roof level moving with a large debris flow rate on the vertical main pipe 1, located at the center of the camera, filling the flow changes its direction of movement from the vertical to the horizontal. To do this, the camera is at a height of 1.7 m from the roof (it's already filled to this level) construct design, allowing you to save energy of motion of a debris flow during movement along the horizontal pipeline for spreading in the camera.
Sources of information
1. Wepcrack, V.V. Kulikov. Application hardening bookmarks in the development of ore deposits. - M.: Nedra, 1974, s-125.
2. Copyright certificate №735805 published 27.05.1980,
3. Copyright certificate №376584 published 29.05.1973,
4. Patent No. 1399482 published 30.05.1988,
1. How DataBlade waste cameras, including the installation of a pipeline and feed it filling mixture, characterized in that the filling mixture served by pipeline to a minimum height of 1.7 m at the roof level, and then change the direction of flow of the filling mixture from the vertical to the horizontal by means of the device according to claim 2, allowing you to save energy of motion of a debris flow.
2. Device for DataBlade exhaust chambers, consisting of a nozzle, wherein the device is further provided with a tubular nozzle, which is installed bearings with thrust bearings, and the length of pipe nozzles does not exceed 1/5 of the length of the waste chamber, and the height of the supports is determined depending on the angle of spread filling mixture α.
SUBSTANCE: filling mixture compound containing Portland cement, filler and water includes wet magnetic separation waste with specific surface area of 80 m2/kg as filler; Portland cement M 400 crushed in disintegrator together with wet magnetic separation waste of ferruginous quartzites (WMS) till composite binding agent with specific surface area of 500 m2/kg is obtained, at the following component ratio, wt %: portland cement M 400 5-10, wet magnetic separation waste 17-22, the above filler 68-71, and water is the rest.
EFFECT: environmental protection, filler material is obtained, which binds in its structure the contaminants and excludes their migration to environment.
SUBSTANCE: in process of filling mass erection a tight reservoir is placed in the filled mine, and the reservoir has variable volume and is made of elastic material, and on completion of filling works, but prior to the filling mass hardening, the reservoir is filled with a foreign fluid-like matter. The matter is supplied in this reservoir under pressure. Increase of dimensions of the tight reservoir with the variable volume from the elastic material inside the filling mass results in the fact that the filling material fills all cavities at the contact with the mine walls, and exposure to pressure forms forces that compensate for the filling material shrinkage during hardening. As a result, a permanent and an efficient contact of the filling mass and enclosing rocks is provided along the whole perimetre of the filled mine, and all unwanted geomechanical consequences, which are usually related to availability of unfilled volumes when traditional technologies of filling mass erection are used, are eliminated.
EFFECT: invention makes it possible to increase the bearing capacity of the filling mass.
SUBSTANCE: method includes filling gaps with the help of flexible curb, which is a tight container sewn from hose of strong watertight cloth, shaped as a sack or bag closed at both ends. Valves with holes are installed in upper corners of flexible curb. One valve is intended to feed cement-containing mixture into the container, and the second one - for air outlet from filled space. The flexible curb is evenly laid behind course strengthening space, and cement-containing material is injected through one of valves, at the same time air is exhausted from filled space via the other valve.
EFFECT: high-quality and efficient filling of gaps in mining courses.
SUBSTANCE: method to develop potassium beds includes a continuous development system, plow or combine mining, conveyor transportation, filling of developed space. Developed space is fenced off the bottom hole with a powered support, and backfilling material is used to completely fill the developed space, while initially developed space is filled with backfilling material with filling extent of 0.8-0.9, at the same time distance from powered support to face does not exceed 10-12 m, and then space behind partition, which remained unfilled, is backfilled to roof of withdrawn bed. Filling of bed roof is carried out with mechanical method with the help of pneumatic filling complex. Production complex operation in face is controlled automatically.
EFFECT: improved completeness of potassium ores extraction with preservation of continuity of water protection thickness, efficiency and safety of production works performance.
3 cl, 2 dwg
SUBSTANCE: invention relates to mining and can be used in underground mining of potash mines with goaf stowing. Proposed method comprises forming laying cavity in the chamber, separate transfer and storage of salt wastes and clay-salt slimes, discharged of settled brine. Note here that chamber laying cavity is filled, first, with clay-slat slimes and, after settling of said slimes and brine clarification, salt wastes pulp is fed into said chamber to fill it completely. Note also that solid fraction of clay-salt slimes fed into the chamber is determined by the following formula : where Msl is weight of solid clay-salt slime fraction in the chamber, t; Msc is weight of salt waste in the chamber without clay-salt slime, t; S+Sl is sum of salt wastes and clay-salt slimes withdrawn from enrichment process. Invention is detailed in dependent claims.
EFFECT: increased volume of laid clay-salt slime in goaf stowing.
4 cl, 1 ex, 3 dwg
SUBSTANCE: rock lining method involves erection of n-coal liner in filling mass from equal n-elements along helical spiral, installation of hollow guide template on bearing set prior to erection of filling mass, which repeats contours and clear sizes of development and the height of which is more than filling increment. At that, lining elements are laid on outer surface of template; after that filling mass is erected around liner; then template is lifted through one filling increment; sequence of operations is repeated till the liner erection is completed.
EFFECT: maintaining straightness of development liner during erection.
SUBSTANCE: invention refers to mining and can be implemented at development of mineral deposits with stowing mined space. Composition of stowage mixture containing milled granulated blast furnace slag, inert filler and water consists of the said acidic slag of fractions smaller, than 0.071 mm not less 90 wt %, as inert filler - wastes of concentration of wet magnet separation of ferrous quartzite containing fractions smaller, than 0.071 mm not less 90 wt %, additionally - super fluidising agent SP-1 at the following ratio of components, wt % said slag 22, said wastes 54.5, super fluidising agent SP-1 0.4 of slag contents, water - the rest.
EFFECT: raised strength, increased volumes of utilised anthropogenic wastes for considerable improvement of ecological medium.
1 ex, 2 tbl
SUBSTANCE: invention refers to mining and can be implemented at underground development of mineral deposits with stowing mined space. Stowage mixture contains, wt %: Portland cement or its milled clinker 1.4 - 13.68, milled zeolite rock 0.21-10.4, brine of 20÷105 g/l mineralisation, mainly of sodium chloride at temperature facilitating temperature of stowage mixture not below +15°C 14.9 - 26.96, fluidizing agent 0.01 - 0.3, filler - the rest. The invention is developed in dependant claims of the invention formula.
EFFECT: raised mobility and flowability of stowage mixtures, reduced shrinking at maintaining specified hardness, and reduced costs for nature conserving measures from negative effect of harmful salt saturated wastes of diamond extraction.
4 cl, 3 ex, 2 tbl
SUBSTANCE: shaft pneumatic bridging comprises pneumatic shell, suspension unit, protective jacket, manometric and air-supply hoses, device for filling, control of excessive air pressure and its ejection, mount cord. At the same time pneumatic shell is arranged in the form of soft axisymmetric toroidal shell of rectangular section, inside of which there is sleeve arranged, and along its axis there is pipe mounted in with diametre that is less compared to sleeve. Besides pneumatic shell is separated into two equal parts by means of perforated web, upper end and its side surfaces are coated by loose-fitting meshy web with lap towards working zone of rise heading, upper end is made of synthetic high-module fibre of high strength.
EFFECT: improved operational reliability of shaft pneumatic bridging.
SUBSTANCE: half-open course is arranged along chamber perimetre at the level of drilling crossdrift in interchamber pillars, and wooden lining is arranged in it as protruding with its dead part into stripped area of chamber. In discharge courses there are drain partitions installed, and hydraulic stowage finely dispersed material without binder is supplied through course into stripped chamber to the level of ventilation crossdrift. After drainage of water and setting of stowage massif from preserved half-open course along processed pillars there is a row of vertical and inclined wells drilled for the whole capacity of stowage massif, casing pipes are lowered from the surface of which into wells together with reinforcement rods, which protrude over the level of stowage massif. Afterwards the hardening solution is used to fill the following: at first, through wells - preserved half-open courses, then - the wells themselves, and lastly, upper part of chamber till its ceiling, which forms capping.
EFFECT: reduced consumption of binder.
FIELD: mining industry.
SUBSTANCE: method includes partial filling of extracted space of side and central mains by filling stripes from lava extracting shafts. At center of semi-lava on the side of massive, wherein next extractive column will be cut, filling shaft is additionally driven, wherefrom full filling of space between central fill stripe and fill stripe on the side of massive is performed. Preparation of next extraction column is performed under protection of erected fill stripes.
EFFECT: higher safety, higher efficiency.
FIELD: mining industry.
SUBSTANCE: method includes erection of rows of main platforms along bed length in staggered order with length equal or divisible by step value for support displacement, and placing filling material thereon. Along length of main platforms between ceiling and bed soil post support is mounted, upon which filling material is fed. After that between main platforms additional platforms are erected with wedge supporting, and main platforms are rotated counter-clockwise towards pneumatic support and it is displaced for one drive step. During that filling material, while lowering, unwedges wedge support between ceiling and bed soil and forms artificial supports. After that additional platforms are rotated counter-clockwise towards pneumatic support. After movement of cleaning face for two drive steps operations for constructing artificial supports are repeated. Distance between main platforms along bed fall line are selected from mathematical expression.
EFFECT: higher efficiency.
FIELD: mining industry.
SUBSTANCE: method includes preparation and well extraction of resources of chambers with partial backfill of extraction space. Blocks of upper level relatively to blocks of lower level are placed in staggered order, while blocks are made in form of a stretched upwards hexahedron. Resources of block within one hexahedron are separated on two chambers, one of which, placed along periphery of hexahedron, after extraction and removal of ore from it is filled by hardening backfill. Second order chamber is made of hexahedron-like shape, extracted and removed under protection from artificial block on all six sides of this chamber. Removal of ore from first order chambers is performed through one removal mine - end of level ort and cross-cut in lower portion of block and intermediate sub-level cross-cuts.
EFFECT: higher efficiency.
FIELD: mining industry.
SUBSTANCE: method includes extraction of deposit resources by chambers through one of them, construction of ice-rock backfill in extracted space of primary chambers and following extraction of inter-chamber blocks. In inter-chamber blocks wedge-shaped slits are formed immediately in ceiling of deposit, space of slits is filled with ice-rock backfill, while slits are formed of inter-chamber blocks for 1/3 of width.
EFFECT: higher durability, higher effectiveness.
FIELD: mining industry.
SUBSTANCE: device has surface composed of upper section with wedges and lower section and backfill material placed on said surface. Upper section is made in form of a rectangle, composed of rectangular triangle and rectangular trapezoid with possible displacement of trapezoid along triangle hypotenuse. Lower section is made of two plates, mounted on holder, fixed to pipe for feeding compressed air. Plate, positioned above the trapezoid, is mounted with possible counter-clockwise rotation around holder. Value of greater base of trapezoid hδ is selected from relation hδ = m - 0.9k, where m - bed massiveness, m, k - size of backfill material, m.
EFFECT: simplified construction, lower laboriousness.
FIELD: mining industry, particularly to develop mineral deposit along with backfilling of worked-out areas.
SUBSTANCE: backfill mix comprises cement, grinded granulated blastfurnace slag, filler and water. The backfill mix additionally has shredded straw. Grinded diabase is used as the filler. All above components are taken in the following amounts (% by weight): cement - 2.9-5.07, grinded granulated blastfurnace slag - 15.21-16.91, grinded diabase - 52.24-53.22, shredded straw - 0.02-0.076, water - remainder.
EFFECT: increased strength and crack-resistance.
FIELD: mining industry.
SUBSTANCE: invention is designed for use in development of minerals with systems involving filling mined-out space with solidifying stowing mix. The latter is composed of broken lime-containing binder in the form of active aluminosilicate material (5.6-33.2%) and fired carbonate rocks (1.0-16.7%), tempering water with phlegmatizer (10.6-27.5%), and filler. Carbonate rocks are fired at 900-1200°C, contain active calcium-magnesium oxides CaO+MgO at least 40% and not more than 9.1% based on the total weight of mix, which are broken to screen residue 0.08 mm not more than 15%. Active aluminosilicate material is fired marl or fired clay, or fired kimberlite ore concentration tails, or granulated blast furnace slag. Tempering water contains phlegmatizer in amounts found from formula [Ph] = (0.005-0.021)*Cr/Cw, where [Ph] amount of water in 1 L tempering water, kg; (0.005-0.021) coefficient taking into account proportion between phlegmatizer and fired carbonate rocks in mix; Cr amount of carbonate rocks in mix, kg; and Cw experimentally found consumption of tempering water with mix, L. When indicated amount of CaO+MgO in mixture is exceeded, CaO and MgO are converted into hydroxides by spraying with water in amount not higher than 20% of the weight of fired carbonate rocks (on conversion to active CaO+MgO). As carbonate rocks, host rocks of kimberlite deposits are used; as filler, sand and/or concentration tails, and/or broken aluminosilicate rock; and, as phlegmatizer, industrial-grade lignosulfonate or superplasticizer.
EFFECT: improved workability of mix and reduced cost.
5 cl, 4 dwg, 3 tbl
FIELD: mining and underground building, particularly underground mining.
SUBSTANCE: method involves double-stage mineral deposit development; erecting artificial rock-and-concrete supports of previously cut primary chamber roof rock in at least two adjacent primary chambers; extracting secondary chamber resources; filling space defined by cut rock with hardening material mix. Mines for drilling and/or filling operations performing are arranged in deposit roof over or inside ore pillars of secondary chambers. Primary chamber roof rock is cut by well undercharge method. Hardening material mix is supplied via cross headings located between mine and cavities and/or via undercharged well sections remained after rock cutting operation.
EFFECT: increased safety and economical efficiency due to reduced number of drilling and filling mines or accompanying mineral excavation, possibility to use drilling and filling mines at secondary chamber development stage for ore cutting, venting and roof condition control.
5 cl, 3 dwg
FIELD: mining industry, particularly underground mineral mining with excavated space filling with hardening filling mix.
SUBSTANCE: method involves mixing grinded lime-containing binding agent, mixing water and filler; delivering the filling mix to area to be filled; filling mine space with the filling mix in several layers. The lime-containing binding agent is active silica-alumina material and burnt carbonate rock including at least 40% of active Cao+MgO. Above rock is grinded so that not more than 15% of grinded material remains on sieve having 0.08 orifice dimensions. Amount of the grinded burnt carbonate rock is selected so that active Cao+MgO is not more than 9.1% of filling mix mass. Water consumption for oxide Ca and Mg conversion in hydroxide is not more than 20% of burnt carbonate rock recalculated to active CaO+MgO. Retarder is added in mixing water in amount determined from R=(0.005-0.021)-Cr/Cw, where R is retarder content in 1 l of mixing water, kg; (0.005-0.021) is factor, which considers retarder-burnt carbonate rock ratio in the filling mix; Cr is burnt carbonate rock content in filling mix, kg; Cw is experimentally determined mixing water content in filling mix, l. Mine space filling rate is chosen from hardening time and self-heating degree of filing mass. The filling mix contains active silica-alumina material in amount of 5.6-33.2% by weight, carbonate rock burnt at 900-1200°C and containing active CaO+MgO of not less than 40% in amount of 1.0-16.7%, mixing water with retarder in amount of 10.6-27.5%, remainder is filler.
EFFECT: increased operational safety due to improved quality mine space filling, reduced costs and increased mine intensity.
6 cl, 4 tbl, 5 dwg
FIELD: mining, particularly to develop valuable mineral deposits along with goaf filling.
SUBSTANCE: fill mix comprises quick lime, grinded blast furnace slag, filler, industrial lignosulphonate and water. The fill mix additionally comprises trisodiumphosphate. All above components are taken in the following amounts (% by weight): quick lime - 1.61-4.8, grinded blast furnace slag - 10.79-14.4, filler - 60.85-62.14, industrial lignosulphonate - 0.016-0.11, trisodiumphosphate - 0.124-0.35, remainder is water.
EFFECT: increased strength and crack-resistance of fill mix over the full fill body.