Movable connection strap for creation of filling mass in underground mine workings

FIELD: mining.

SUBSTANCE: device includes metal pressure shield in the form of rectangular parallelepiped consisting of four triangular prisms attached to each other, the bases of which have the shape of oblique right triangle, drain pipes with filters and sampling pipes with plug, door opening with door made in the shield, soft covers arranged on upper and lateral sides of shield, the height of which exceeds distance between shield and mine working section outline at their complete filling with compressed air. At bottom, on the side of filling mass the shield is equipped with rubber-coated canvas. Soft covers installed to lateral sides of shield are arranged on brackets attached throughout the height of connection strap to its side walls. Width of brackets is accepted equal to 2/3 of width of soft covers, and distance between brackets is determined from the following ratio: hmax>a>hmin, where a - distance between brackets, m; hmax - maximum height of soft covers at supply of compressed air to it, m; hmin - minimum height of soft covers after air discharge from it, m.

EFFECT: reducing labour intensity at installation of connection strap, increasing efficiency and improving reliability of control of filling mass.

5 dwg

 

The invention relates to the field of mining and can be used for overlapping extensive mining of large cross section areas during backfilling operations.

Famous jumper to isolate the mine workings from the backfill material comprising a body with a beveled around the perimeter of the faces that ohvatyvayutsya soft shell, with a large base situated on the side of backfill material (A.S. 625053, CL. E21F 15/02, BI No. 35, 1978).

The disadvantage of the design is the need to arrange a special niche for bridging, which causes additional complexity on its installation. In addition, the production of durable soft shell large sizes and complex shapes difficult due to the lack of technology and technology tools.

Famous jumper to overlap mine workings, including interconnected inflatable cylinders of elastic material with intake valves and inflatable cylinders are made as mounted wedge in the wedge of a rectangular prism with a trapezoidal base, with one side of the cylinders through one equipped with rubberized aprons area, equal to the area of the lateral surface of the prism, and limited side of the larger base of the trapezoid and the height of the prism (A.S. 1382981, CL E21F 15/02, BI No. 11, 1988).

One is about the Assembly of this jumper, especially when large sections are laying elaborate, time - consuming process and requires a considerably long time, moreover, the resistance of such jumpers pressure backfill material is negligible, which necessitates the use of additional measures to improve its stability (e.g., use of restraint ropes attached to the sides of the output).

Famous jumper to create a filling mass in the underground mine workings, including metal pressure shield, consisting of separate elements fastened together by bolts, interacting with soft shell, provided with a pipe for compressed air, pipes for drainage with filters and pipes for sampling with a stub (A/S. 617607, CL. E21F 15/02, BI No. 28, 1978).

However, the reliability of such jumpers low as impulse in one place ring soft shell leads to failure of the whole structure. In addition, the production of durable soft shell large sizes and complex shapes difficult due to the lack of technology and technology tools.

Known mobile jumper to create a filling mass in underground mines, taken as a prototype, including metal pressure shield, consisting of separate elements fastened together by bolts, magkakaroon, equipped with nozzles for compressed air pipes for drainage with filters and pipes for sampling with a plug, metal pressure shield is made in the form of a rectangular parallelepiped consisting of four triangular fastened together, prisms, which have the shape of an isosceles right triangle, the altitude of the triangular prisms take more distance between the roof laying generation and metal pressure shield that hosts the doorway, with the door opening in the direction of arrangement of filling the array, and with the upper and lateral sides of the shield are placed soft shell, the height of which with the full admission of compressed air exceeds the distance between the metal of the pressure shield and section contour generation, and at the bottom, from the side of the filling mass, metal pressure shield is equipped with rubberized apron (patent RU 2375579 C1 IPC E21F 15/02).

However, when shifting the jumpers the necessity of removing soft shells, which are located on the sides of the metal shield, and then install them, and set you on the same shell, and then turn to fill them with air, resulting in additional labor for its construction and great expenditure of time, especially when large sections of zakladyvaet the th generation.

The technical result is to reduce the complexity of the work when installing mobile jumper to create a filling mass in the underground mine workings.

The technical result is achieved by that in a mobile jumper to create a filling mass in the underground mine workings, including metal pressure shield in the shape of a rectangular parallelepiped consisting of four triangular bonded prisms, which have the form of an isosceles rectangular triangle, pipes for drainage with filters and pipes for sampling with a stub, a doorway with a door in a metal pressure shield soft shell placed with the top and sides of the metal shield, the height of which with the full admission of compressed air exceeds the distance between the metal of the pressure shield and circuit generation section, and in the lower part by filling array of metallic pressure shield is equipped with rubberized apron, according to the invention soft shell mounted to the sides of the metal shield movable lintel is placed on the brackets that are attached along the entire height of the jumper to its lateral walls, and the width of the brackets is equal to 2/3 of the width of the soft shells, and the distance between the brackets determine the amount of correlation

hmax>a>hmin,

where a is the distance between the brackets, m;

hmax- the maximum height of the soft shells when applying them in compressed air, m;

hmin- minimum height soft shells after the release of their air, m;

Figure 1 shows the design of bridges in the section laying generation with the release of compressed air from soft shells; figure 2 - jumper on the line I-I; figure 3 shows the design of bridges in the section laying develop during the filling of the soft shells of compressed air; figure 4 shows the node a, which shows the location of the soft shells on brackets attached to the side walls of the metal of the pressure shield and release of compressed air from soft shells; figure 5 shows the node a, which shows the location of the soft shells on brackets attached to the side walls of the metal of the pressure shield and filled with compressed air soft shells.

Mobile jumper to create a filling mass in the underground mine workings is made of a metal shield 1 in the form of a rectangular parallelepiped consisting of four triangular prisms 2, fastened together at the base with the clamp plates 3 and 4 bolts. Metal prisms have a form at the base of an isosceles right triangle, and so the connection between a rotated by 90 degrees relative to the height. The height of the triangular prisms hP(2) take more distance d between the roof laying generation 5 and the metal pressure shield 1 (hP>d), so as to prevent overturning of the bridge (as when turning the jumper it will rasklinivanie between the walls of output). With the top and sides of the shield are placed soft shell 6 of rectangular shape with a nozzle 7 for the supply and discharge of compressed air. The nozzles are in the direction opposite to the backfill array 8. Soft shell is placed with a gap Δ between the walls laying generation 5. In the upper metal triangular prism placed pipe 9 for feeding filling material in the lower triangular prism - pipe 10 for drainage to the filter 11 and two pipes 12, 13 for sampling. The latter, of different length and diameter, running one into another. The pipe 13 is closed by a plug 14. On the lower side of the metal pressure shield 1 from backfill array 8 is equipped with rubberized apron 15, and in the middle part of the lower metal triangular prism placed a doorway with a door 16 which opens in the direction of arrangement of filling array 8. To the sides of the metal shield over the entire height of the movable jumpers attached brackets 17 (Fig.4-5), the width bmwhich are equal to 2/3 of the width of the bm soft shells, and the distance between the brackets is determined from the ratio

hmax>a>hmin,

where a is the distance between the brackets, m;

hmax- the maximum height of the soft shells when applying them in compressed air, m;

hmin- minimum height soft shells after the release of their air, m;

The use of brackets of these parameters allows to overlap the gaps between the metal shield and side rocks laying develop during the filling of the soft shells of compressed air and hold soft shell when shifting mobile backfill jumpers without additional dismantling and installation, as well as to increase the resistance of the backfill array by reducing the gap from the side of the rocks laying production.

The jumper is as follows. On the ground lay the generation stack is rotated 90 degrees relative to the height of the metal triangular prism 2, with a doorway and a door 16. Next, flanked by two subsequent prism 2, one of which is supplied by pipes 12, 13 for sampling, and the side of the prism is placed so that the distance between the prisms and walls formulation 5 was a gap d (Fig 1). The brackets 17 are placed one soft shell 6. Then three stacked prisms stacked on top Thur is rtuu the prism with a gap d between the roof laying generation, which also placed a soft shell 6 height h1(figure 1). The pipe 7 serves compressed air initially in soft shell 6, located in the sides of the framing, and then in a soft shell located between three stacked metal prisms 2 and roof laying generation 5. Using soft shells 6 (the so-called Assembly) move metal prisms relative to each other so that they can be connected together with the clamp plates 3 and 4 bolts. After connecting the four triangular prisms 2 formed metal shield 1 in the form of a rectangular parallelepiped height h (Fig 1, 2, 3). Then the so-called (mounting) soft shell unload, and from the sides of the shield height laying generate H (from base to roof framing) in the gaps between the shield and put elaboration place soft shell with 6 nozzles 7 for supply and discharge of compressed air. Soft shell is placed on the shield between the roof framing and the shield so that the nozzles were in the direction opposite to the backfill array 8, with a gap Δ between soft shell and walls laying generation (figure 1). Soft shell serves compressed air and pumps the jumper between the walls of the tunnel (figure 3). The pipe 9 serves backfill material for mobile lane is Micco, and through the pipe 10 with the filter 11 is drainage backfill array 8. After hardening backfill array (monitoring the state of filling of the array is done with pipes 12, 13, closed by a plug 14) soft shell 6 is unloaded (by compressed air), mobile jumper is moved to a new location (for example, by means of the winch). Jumper is installed at the new location. Monitor the status of the jumpers on the part of filling the array using a doorway with a door 16 which opens in the direction of arrangement of filling array 8. Serves the compressed air in the soft shell 6 to contact them with the excavation contour. Hold apart the jumper between the walls 7 generation, and then the process of filling material, drainage, and monitoring the state of filling of the repeat array. The shifting of the filling jumper is lots of 20-30 m, and so the entire length of lay of manufacture. After laying 1-layer mobile jumper is parsed and translated to another generation (underlying layer). Then operations on the Assembly and the shifting of the movable jumpers again.

The application of the proposed mobile jumper to create a filling mass in the underground mine workings of large cross-section plots during backfilling work is Oh, will improve the efficiency and reliability management of filling the array with extended tab workings and layer extraction of minerals.

Mobile jumper to create a filling mass in the underground mine workings, including metal pressure shield in the shape of a rectangular parallelepiped consisting of four triangular bonded prisms, which have the form of an isosceles rectangular triangle, pipes for drainage with filters and pipes for sampling with a stub, a doorway with a door in a metal pressure shield soft shell placed with the top and sides of the metal shield, the height of which with the full admission of compressed air exceeds the distance between the metal of the pressure shield and section contour generation, and at the bottom by filling the array metal discharge shield is equipped with rubberized apron, characterized in that the soft shell mounted to the sides of the metal shield movable lintel is placed on the brackets that are attached along the entire height of the jumper to its lateral walls, and the width of the brackets is equal to 2/3 of the width of the soft shells, and the distance between the brackets is determined from the ratio:
hmax>a>hmin,
hmax- the maximum height of the soft shells when applying them in compressed air, m;
hmin- minimum height soft shells after the release of these air m



 

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