Method of hydraulic flushing

FIELD: mining.

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.

1 dwg

 

The invention relates to the mining industry and can be used in mining with hydraulic mined-out space.

A known method of construction gidrogelatorov array (patent RF №2024768, publ. 15.12.1994). The part of the developed space for ventilation roadway leave the non-pledged, and after the movement of the fence mechanized lining is formed of additional capacity, which serves backfill slurry in full on one cycle, water is detained to lighten, then open the water separator in the mechanized roof supports and direct waste water for reuse.

The disadvantage of this method is the low productivity of filling operations associated with a long period of dewatering backfill slurry.

The known method hydraulic bookmarks cameras on polegada layers (patent RF №2166639, publ. 10.05.2001). Way hydraulic bookmarks cameras on polegada layers includes the construction of inclined filter elements, the flow of pulp in the chamber for the filtered water. Bookmark cameras is carried out in two stages. Originally lay at the same time part of the chamber and pre-traversed Mezcalero the linkage, leaving the gap between the backfill array and roof failure and, then in the chamber at a breakthrough set of inclined filter element with a height greater than the design height of the backfill array, and produce DataBlade camera.

The disadvantage of this method is the low productivity of filling operations associated with a long period of dewatering backfill slurry.

The known method hydraulic bookmarks cameras (A.S. USSR №1788299, publ. 15.01.1993). The flow of filling material is produced through wells drilled in the roof framing, serves stowing mixture through wells alternately at several points by successive opening of the wells at the point of submission after the construction of the array to the maximum height in the previous feed point.

The disadvantage of this method is the low productivity of filling operations associated with a long period of dewatering backfill slurry.

The known method hydraulic bookmarks longest single workings adopted for the prototype (patent RF №2384711, publ. 20.03.2010). The method includes the erection of retaining and filtering jumpers, installation of the pipeline, the flow of filling of the pulp. Drain water passes through the drain holes in the filtration jumpers installed on the side opposite the supply of pulp. Filing backfill slurry in laying the space carry out is through the pipeline with the holes in the bottom, attached to the roof framing on its entire length. Holes in the initial part of the pipeline provided with flap valves.

The disadvantage of this method is the low productivity of filling operations associated with a long period of dewatering backfill slurry.

An object of the invention is to increase the productivity of filling operations by reducing the period of dewatering backfill slurry.

The technical result is achieved in that in the method of hydraulic bookmarks, including the construction of retaining and filtering jumpers, installation of the pipeline, the flow of filling of the pulp and drain water through the drain holes in the filter jumper installed on the side opposite the supply of pulp according to the invention the supply of filling of the pulp produced in stages with the formation of several layers, between which is parallel to the longitudinal axis of the laying of space to be installed using a pressurized hose drain pipe, fastened one end to a sealed tube, and each drainage pipe increasing to reach opposite her jumper, then through the window in the filtration jumper hose is disconnected from the drain pipes and removed for further use, after installation project number Dreux the most important pipes the process of filling the pulp resume.

Way hydraulic bookmarks illustrated by the drawing, which shows a schematic diagram of a bookmark generation using a pressurized hose, where:

1 - put space;

2 - slurry pipeline;

3 - tight hose connected to a device for supplying a working agent, for example a compressor 8;

4 - holding the jumper;

5 - filter jumper with Windows;

6 - drainage pipes;

7 - filling the array obtained from the backfill slurry by draining of water;

8 - feeder working agent, for example a compressor;

9 - mount drain pipes 6 and pressurized pipeline 3.

Hydraulic mined-out space is one of the cheapest in comparison with other types of bookmarks. The main problem in the construction hydrosilation arrays is fast discharge of process water. Speed drain actually regulates the performance of the conduct filling operations. As a rule, backfill material (backfill slurry contains fine (clay) particles (with size less than 0.05 mm), which are carried with the water and accumulate in the filter jumpers 5, forming an array of low permeability. Because of the low permeability of this backfill array timely vodoo the cottage becomes impossible and the formation process of filling the array is broken why performance decreases conduct filling operations. This drawback it is possible to resolve by installing in laying space 1 drain pipe 6. This drain will occur uniformly throughout the length of lay of the space 1 through the inner space of the drain pipe 6. Most of the small particles remain in the raised filling the array and is not involved in the turnover process water. Filling the array 7 will be created with higher productivity due to the rapid discharge of process water, its strength properties are more uniform in length and height.

Drainage pipes 6 are corrugated pipes made of PVC with a smooth inner surface and with holes to pass water. Installation of drainage pipes 6 is quite simple and does not require any special knowledge and skills. The durability of drainage pipe 6 PVC is about 50 years. Project number drainage pipes 6 and actually depends on the mechanical structure backfill slurry. The internal diameter of the drain pipe 6 is taken with regard to the cross-sectional area laying space 1. Design the distance between the drain pipe 6 is determined experimental, ex is erimentale-analytic or empirically based on the characteristics of filling of the pulp and sizes lay space 1. The diameter of the drain pipe 6 is in the range from 50 to 200 mm, Most commonly it is supposed to use the drain pipe 6 with a diameter of 100 mm Number of holes required in the drainage pipes 6 accept the project with regard to the content of clay particles. The use of drainage pipes 6 ceteris paribus has the following advantages:

the ribs help to evenly distribute the load of the backfill slurry along the length of the drainage tube 6, which together with improved physico-mechanical properties of the material makes it virtually unlimited service life;

the depth of the drainage tube 6 from the free surface is equal to 6 m;

- weight of the drain pipe 5 when the wiring length of 50 m is about 25 kg, which greatly facilitates their transportation both underground and on the surface, and installation in the pledged space 1;

- when installing drainage pipes 6 are easily cut hand saw;

- it should be noted that the drain pipe 6 PVC is several times greater than polyethylene pipes by their mechanical characteristics;

- increasing the number of holes per 1 meter drains faster pass, collect and dispose of process water with the lay of the land.

When designing a schema is aspolozhena drainage pipes 6 in the pledged space 1 must take into account their depth, and the distance between them, which depends primarily on mechanical structure backfill slurry. The maximum distance between the drain pipe 6 with a large number of clay particles is 10 m, with a smaller number can be increased up to 50 meters closer to the location of the drain pipe 6 can speed up dehydration filling mass, but increases the cost of operations.

Way hydraulic bookmarks is as follows. To the roof laying space 1 attach the pipeline 2. Erect holding 4 and filter 5 jumpers. Serves gradually filling the pulp with the water drained through the Windows filtering ridges 5, covered with a filter fabric installed on the side opposite the supply of pulp. After the formation of the first layer stack on top of it using a pressurized hose 3 parallel to the longitudinal axis of the laying space 1 drainage pipe 6 in the following sequence. At one end of the pressurized hose 3 set period of drainage pipes 6 with the bracket 9, such as a clamp. Send pressurized hose 3 in the pledged space 1 and served in portions of the working agent, such as compressed air from the feeder working agent 8, such as a compressor. Pressurized hose 3 asprawl what is and carries mounted thereon a plot of the drain pipe 6. As you move United parcel drainage pipes 6 in the pledged space 1 raised to their achievements at the end opposite the filter jumper with 5 drain Windows. Then through the window in the jumper 5 sealed hose 3 is disconnected from the drain pipe 6 and are removed for further use. If necessary, adjust the location of each drainage pipe 6 in the layer. After installation project number drainage pipes 6 the process of filling the pulp resume for the construction of filling the array 7 of backfill slurry. After the filing of the backfill slurry and discharge of process water from it receive backfill array 7.

The application of this method hydraulic bookmarks when underground mining provides the following benefits:

- increased productivity of filling operations;

- reduction of the period of dewatering backfill slurry;

- reducing the removal of clay particles from the filling of the pulp;

- increased security for filling operations.

Way hydraulic bookmarks, including the construction of retaining and filtering jumpers, installation of the pipeline, the flow of filling of the pulp and drain water through the drain holes in the filter jumper installed on the side opposite the supply of pulp is trichosis fact, that the supply of filling of the pulp produced in stages with the formation of several layers, between which is parallel to the longitudinal axis of the laying of space to be installed using a pressurized hose drain pipe, fastened one end to a sealed tube, and each drainage pipe increasing until it reaches the opposite jumper, then through the window in the filtration jumper hose is disconnected from the drain pipe and removed for further use, after installation, the design of drainage pipes the process of filling the pulp resume.



 

Same patents:

FIELD: mining.

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.

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FIELD: mining.

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FIELD: mining.

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FIELD: mining.

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FIELD: mining.

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The invention relates to the mining industry and can be used in underground mining with a mined-out space

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.

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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.

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FIELD: mining industry.

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FIELD: mining and underground building, particularly underground mining.

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FIELD: mining.

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FIELD: mining.

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.

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Goaf stowing method // 2393355

FIELD: mining.

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.

2 dwg

FIELD: mining.

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.

4 dwg

FIELD: mining.

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

FIELD: mining.

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.

1 dwg

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