The way bookmarks exhaust chambers
The invention relates to the mining industry and can be used in underground mining with the mined-out space. The objective of the invention is the creation of productive way of hydrobalance exhaust chambers providing high quality water, high density filling mass and low energy costs on the rise of water from the mine. The way bookmarks exhaust chambers includes the installation of an isolation jumper with culvert elements and the flow of slurry into the chamber through the channel. Create a filter layer in the bottom of the camera. Diversion of water from the chamber is carried out from the upper part remote from the feed slurry, and the drainage of the backfill array is filtered with the release of water through the culvert elements. Diversion of water from the chamber may be made under the pressure of the column of pulp in the feed channel. The pulp in the chamber can be served on its Board. 2 C.p. f-crystals, 2 Il. The invention relates to the mining industry and can be used in underground mining with the mined-out space.There is a method of laying-out simple is a great space, drain water from parts laying space, remote from the feed slurry, dewatering, backfill array by filtering water through a flume elements, and the jumper is airtight and filter with drain Windows (see USSR author's certificate No. 1724894, IPC E 21 F 15/00, 1992).The disadvantages of this method are the lack of clarification pour out the water due to the removal of the pulp particles through the drain open, slow draining of the array due to the lack of a filtering layer, and a low density backfill array.Closest to the proposed solution is the way bookmarks exhaust chambers containing the installation of an isolation jumper with culvert elements, the flow of pulp in the chamber, creating a filtering layer in the lower part of the chamber, draining the water from the chamber and the drainage of the backfill array by filtering water through a flume elements, and the feed slurry and draining of water are alternately with technological pause, and discharge of water produced from surface laid bookmarks periodically, through the holes drilled in the height of the camera (USSR author's certificate No. 1218153, IPC E 21 F 15/00, 15/08, 1986).The disadvantages of this method are low proizoditelnostyu - creating a productive way hydrobalance exhaust chambers, providing high quality water, high density filling mass and low energy costs on the rise of water from the mine.This object is achieved in that in the method of the laying waste of cameras, including the installation of an isolation jumper with culvert elements, the flow of slurry into the chamber through the channel, the creation of the filtering layer at the bottom of the camera, the diversion of water from the chamber and the drainage of the backfill array filtering with the release of water through the culvert elements, the diversion of water from the chamber is carried out from the upper part remote from the feed slurry.Another difference is that the diversion of water from the chamber is performed under pressure of the column of pulp in the feed channel.The difference is that the pulp in the chamber serves on its Board.In Fig.1 schematically depicts a proven camera with the adjacent portions of the array of rocks; Fig.2 - chamber with inlet and outlet channels.The method is as follows.All workings 1, having access to the treatment chamber 2, construct insulated jumper with 3 culvert elements (lower horizon). Down the channels 4 for feeding the pulp, which can be laid pipelines 5. Pulp, ky 2 and adjacent mines to jumper 3 create a filter layer 6 of larger fractions of the material. Then submit the pulp prior to complete filling of the chamber 2. Possible supply of pulp on Board camera. Diversion of water from the chamber 2 is carried out from the upper part remote from the feed slurry. In the process of moving the slurry from the inlet to the drain water is the deposition of particles from the chamber flows out already clarified water. The bookmark is carried out continuously until the complete filling of the chamber with the tailings. In the process of bookmarks, when completely filled with the pulp chamber, there is a seal formed part of the array tails, as under the weight of the slurry and filtering the water through the filter layer, it goes through a culvert elements jumpers. When pumping water from the level of its outlet from the chamber (upper chamber) the energy consumption is less than when the bypass water to lower horizons to mine dewatering.For the reduction of energy consumption diversion of water from the chamber 2 is performed under pressure of the column of pulp in the feed channel 4 (Fig.2). The slurry is fed into the chamber 2 by filling the channel 4. To reduce speed in the channel 4 (Fig.2) the mixture, before entering into the chamber 2, thicken or set the damper speed. At steady state in filling channel 4 support column slurry, providing pressure, neon and light on the surface. This is possible due to the higher specific weight of the slurry relative to water. When filled channels 4 and 7 for filling the array generated in the chamber 2, effect of high pressure, sealing it.Feed slurry on Board camera provides enhanced flow, reduced flow velocity of the pulp in the cell, which contributes to a better clarification of water.That the diversion of water from the chamber is carried out from the upper part remote from the feed slurry, allows for high-quality water clarification, to ensure continuity of the process of bookmarks, and hence high performance. This reduces the energy consumption for lifting water from the mine, as the height is reduced by at least the height of the camera. Array formation occurs under the pressure of a water column with a maximum height equal to the height of the camera that provides a high density bookmarks.Diversion of water from the chamber under the pressure of the column of pulp in the feed channel allows you to increase all of the above effects.
Claims1. The way bookmarks waste cameras, including the installation of an isolation jumper with culvert elements, the flow of slurry into the chamber through the channel, creating filter the water through a flume elements, characterized in that the diversion of water from the chamber is carried out from the upper part remote from the feed slurry.2. The method according to p. 1, characterized in that the diversion of water from the chamber is performed under pressure of the column of pulp in the feed channel.3. The method according to p. 1, characterized in that the pulp in the chamber serves on its Board.
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: 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 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
SUBSTANCE: invention refers to mining industry and can be implemented at underground development of steep pitched deposits represented with unstable ore, under thickness of water-flooded sediments, excavation of which is connected with hazard of underground water inrush into mine workings. The procedure of development of thick steep pitched ore bodies consists in division of ore body into layers mined in descending order, in mining layers with cuts and in filling mined space with a solidifying material. Sections of location of cavities above filled massif and sizes of these cavities are determined by visual or instrument survey from cuts mined adjoined to the filled massif. Solidifying materials are supplied to places of after-filling in adjoined cuts using, for example a concrete pump equipped with the system of control over filling mixture supply. Cavities are after-filled in a divergent order in the direction off their boundaries, from uttermost adjoined cuts to adjoined cuts.
EFFECT: increased completeness of filling mined space, decreased space of mining auxiliary entries and increased safety of mining at development of deposits.
SUBSTANCE: invention refers to mining industry, and namely to the method used for hydraulic filling of long single mine workings. It involves influence of retaining and filtering connection straps, installation of pulp pipeline, and supply of filling pulp. Water is drained via drain holes made in connection straps installed on the side opposite to the pulp supply. Filling pulp is supplied to the filled area via pulp pipeline with the holes made in lower part, which is attached to the roof of mine working throughout its length. The holes made at the beginning of the pipeline are equipped with petal valves.
EFFECT: increases the filling degree of the worked-out area in hard-to-reach sections.
2 cl, 2 dwg
SUBSTANCE: method of goaf stowing during underground development of steeply dipping thick ore bodies involves bottom-upward excavation of inclined ore streaks 5 in horizontal layers up to 8 m wide with the inclination angle equal to angle of dip of ore body starting from the hanging side towards the lying side, ore breaking to the mine goaf of the bed, loading of the broken ore from the mine goaf, installation of insulating bulkheads on the bed flanks and filling of the mine goaf with hydraulic stowing mixture 2. Before the mine goaf is filled with hydraulic stowing mixture 2, there built near exposed surface of the adjacent inclined ore streak 6 is concrete retaining wall 1 with the thickness taken depending on the bed width and the specified strength of wall 1. After the rest part of the mine goaf is filled with hydraulic stowing mixture 2 and water is filtered, injection of hardening - cement-and-sand solution is performed to its upper part to the depth of 100…300 mm for movement of self-propelled machines along the filling surface 4.
EFFECT: invention will allow decreasing the flow rate of hardening stowing mixture owing to the construction of concrete retaining wall and reducing the prime cost of the mine production.
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: method includes supplying pulp under excessive pressure via a safety device. The safety device is arranged as a tee, one end of which is connected to a bottomhole pulp line, the second one - to a sealer, and a safety membrane is installed on the third one. At the same time the output of wells in the backfilled chamber is arranged near its roof.
EFFECT: higher extent of chambers filling with a backfilling material with reduction of labour costs.
2 cl, 7 dwg
SUBSTANCE: flushing pulp is delivered in stages forming several layers between which drain pipes are installed using leakproof hose parallel to longitudinal axis of flushed space. Drain pipes are attached by one end to leakproof hose. Each drain pipe is extended till it reaches opposite dam, then the housing is detached from drain pipe through the opening in filter dam and is removed for further use. When installation of project quantity of drain pipes is completed, process of flushing pulp delivery is resumed.
EFFECT: improving efficiency of flushing works due to reduction of flushing pulp runoff period.