RU2713834C1 - Mine brattice wall - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention relates to mining industry and can be used for temporary and permanent isolation of mine workings during cleaning works and in case of fire in mine workings. Mine brattice wall is provided with brattice base to support device to shut off main section of mine working made up of prefabricated overlapping structure secured to guides arranged at brattice base and consisting of fixed part and movable thrusts, roofing and soil. Prefabricated ceiling structure consists of panels connected to each other by means of rotary devices, for example, loops. In one or several panels there are opening and closing devices for passage of people, which are made with possibility of opening / closing on both sides of the brattice and having a sealed state when closed to prevent air leaks through them. Movable soil stop of the guides serves to secure the brattice on one side, and for the fastening of the brattice on the other side the assembly overlapping structure is equipped with stops. Along the perimeter of the prefabricated overlapping structure there are slots, in which there is a pneumatic hose fixed to the brattice base.

EFFECT: invention makes it possible to reliably isolate a mine as a portable, and as a stationary device and to provide the possibility of people passage through the brattice in both sides and simplification of erection.

5 cl, 8 dwg

Description

The invention relates to the mining industry and can be used for temporary and permanent isolation of mine workings during cleaning operations and in the event of a fire in the mine workings.

Known mine inflatable bridge, consisting of separate elastic toroidal pneumatic chambers having discharge and exhaust valves. Pneumatic chambers are installed in rows, forming a jumper web. Each air chamber has through axial channels, in each of which there is a rigid telescopic guide. On the inner surface of the axial channels with an offset of one relative to the other, rings are fixed, interconnected by elastic ties. When mounting the jumper, the pneumatic chamber is mounted on the telescopic guide, which is threaded through the rings. The guide is fastened between the walls of the mine. Pneumatic chambers communicate with a source of compressed air and, straightening, move along the guides until reaching the working wall (SU 1760130 A1, MKI E21F 1/14, publ. 07.09.1992).

The disadvantages of the known jumper include:

- lack of access through the jumper;

- the complexity of its construction due to the need for additional devices during installation and fastening of horizontal telescopic rails at a working height of several meters, and also because of the need for a source of a large volume of compressed air;

- the inability to use as a mobile device.

Known door for regulating the flow of air flow, including sashes interconnected by rods, and an actuator made in the form of a lever connected with a gear rack and a gear located with a command device on a common gear shaft (SU 298753 A1, IPC E21F 2/01 published on March 16, 1971).

The disadvantages of the known device;

1. Stationary location. The known device cannot be moved to different areas of the mine (mine).

2. Dependence on rock pressure. Any stationary installation during continuous operation will be affected by rock pressure. As a result of this, the structure will be deformed and will not be able to perform its functions.

3. Dependence on the power supply. If the cable supplying electric power to the door control device is damaged, the device will not perform its functions. In the event of a fire, this type of damage is most likely.

Known mine ventilation lintel containing the canvas with fasteners and a reinforcing frame. Rotating masts with telescopic stops are fixed on the reinforcing frame. The ends of the telescopic stops are connected to the web with fasteners. Rotating masts are positioned so that telescoping telescopic stops stretch the web along the perimeter of the mine. Rotating masts located in the upper part of the frame are installed with the possibility of folding in a vertical plane. In addition, the reinforcing frame is mounted on a ski slide or ski roller with the possibility of rotation around its axis and a pneumatic hose is located around the perimeter of the canvas. (RU 116575 U1, IPC E21F 17/107, publ. 05.27.2012).

The disadvantages of the known device are as follows:

1. Reliable isolation of the mine working in the soil area is not ensured, especially in the area of the ski slide.

2. Vertical centering and jumper mounting are not provided, i.e. alignment of ski slides (skis) in the center and fixation of guides with telescopic stops are not provided.

The closest device of the same purpose to the claimed invention in terms of features is a shaft ventilation lintel containing a canvas, the base of the bridge, consisting of ski slides or ski rollers, on which a frame with sliding parts stretching the canvas is installed, overlapping the main section of the mine, a pneumatic hose located along the perimeter of the jumper (RU 2683442 C1, IPC E21F 1/14, publ. 03/28/2019). This device is taken as a prototype.

Signs of the prototype, which coincides with the essential features of the claimed invention, is the base of the jumper, on which is mounted a device for blocking the main section of the mine; air hose

The disadvantages of the known device adopted for the prototype are as follows:

1. Lack of passage through the jumper. In a fire, such a device can block the way people move, as well as interfere with the passage of rescuers to the place of fire.

2. The above fact allows you to perform a jumper only in the form of a portable (mobile). This is due to the fact that with stationary use of devices that block production, it is necessary to ensure passage through them.

3. The complexity of the assembly / disassembly of the structure. Requires trained personnel capable of assembling the structure.

The objective of the invention is the creation of a mine ventilation lintel, which allows you to reliably isolate the mine working both as a portable and as a stationary device, allowing people to pass through the jumper in both directions and ease of erection.

The problem was solved due to the fact that in the well-known mine ventilation jumper, including the base of the jumper, on which a device for blocking the main section of the mine working is fixed, a pneumatic hose, according to the invention, the device for blocking the main section of the mine working is made in the form of a prefabricated overlapping structure attached to guides installed at the base of the lintel and consisting of a fixed part and movable stops: roofing and soil, prefabricated ceiling structure It consists of panels interconnected by means of rotary devices, for example, hinges, and in one or several panels there are opening and closing devices for the passage of people made with the possibility of opening / closing on both sides of the jumper and having a tightness in the closed state for to prevent air leaks through them, the movable soil stop of the guides serves to fasten the jumper on one side, to mount the jumper on the other hand a prefabricated overlapping structure with It is pushed with stops, along the perimeter of the prefabricated overlapping structure there are grooves in which a pneumatic hose is mounted, fixed to the base of the jumper.

It is preferable to make opening and closing devices in the form of windows or doors, or sashes.

It is advisable to install the panel prefabricated overlapping structure with the ability to disconnect from each other.

The panels can be made of durable lightweight material, if a jumper is used to localize the fire, the material must be fireproof.

In addition, when using the jumper as a stationary device, it is additionally equipped with a system for storing and supplying air, for example, a can of compressed air, and a device for supplying and maintaining the required air pressure in the pneumatic hose.

Signs of the proposed technical solution, distinctive from the prototype, - a device for blocking the main section of the mine is made in the form of a precast overlapping structure attached to rails installed at the base of the lintel and consisting of a fixed part and movable stops: roofing and soil; prefabricated overlapping structure consists of panels interconnected by means of rotary devices, for example, loops; in one or more panels there are opening and closing devices for the passage of people made with the possibility of opening / closing on both sides of the jumper and having a tightness in the closed state to prevent air leaks through them; the movable soil stop of the guides is used to fasten the jumper on one side; for fastening the jumper on the other side, the prefabricated overlapping structure is equipped with stops; along the perimeter of the prefabricated overlapping structure, grooves are located in which a pneumatic hose is mounted, fixed to the base of the jumper; opening and closing devices are made in the form of windows or doors, or sashes; panels of the prefabricated overlapping structure are installed with the possibility of disconnecting from each other; the panels are made of durable lightweight material, if a jumper is used to localize the fire, the material must be fireproof; the presence of a system for storing and supplying air, for example, a can of compressed air, and a device for supplying and maintaining the required air pressure in a pneumatic hose when using a jumper as a stationary device.

The implementation of the device for overlapping the main section of the mine in the form of a precast overlapping structure, attached to the rails installed in the base of the bridge, and consisting of panels interconnected by means of rotary devices, will provide quick assembly / disassembly of the shaft ventilation bridge and will simplify the construction of the bridge, and use it as a portable and stationary device in both the workings of small and large sections.

Placement in one or several panels of the prefabricated overlapping structure of opening and closing devices, made with the possibility of opening / closing on both sides and having a tightness in the closed state to prevent air leaks through them, will allow people to pass, both on the one hand and on the other hand jumpers and when closed will provide reliable isolation of the mine.

The fastening of the prefabricated overlapping structure to the guides used to fasten the bridge on one side and the presence of stops on the structure on its other side will ensure the stability of the bridge.

The location of the pneumatic hose around the perimeter of the prefabricated overlapping structure, and fixed to the base of the jumper, will provide reliable isolation of the mine working both as a portable and as a stationary device, improve the insulation properties of the jumper due to the flexibility of the pneumatic hose to the mountain pressure. The pneumatic hose does not deform under the influence of rock pressure due to the discharge and pumping of air and provides a snug fit of the pneumatic hose when the rock pressure changes.

The installation of panels made of durable lightweight material, with the ability to disconnect from each other, will provide quick assembly / disassembly of the mine ventilation lintel and will allow it to be used as a portable and stationary device for large sections of mine workings. Due to the fact that the design has the ability to fold and unfold only one way, facilitates the method of its construction.

The presence of a system for storing and supplying air and a device for supplying and maintaining the required air pressure in the pneumatic hose will ensure effective isolation of the mine when using the jumper as a stationary device and ensure the invariance of its insulating properties with varying rock pressure.

Distinctive features, in combination with the known ones, make it possible to reliably isolate the mine working both as a portable and as a stationary device and provide the possibility for people to pass through the jumper in both directions and ease of erection.

The applicant is not aware of the use in science and technology of the hallmarks of the mine ventilation lintel with the receipt of the specified technical result.

The proposed shaft ventilation bridge is illustrated by the drawings shown in FIG. 1-6.

In FIG. 1 shows the base of the jumper.

In FIG. 2 shows the prefabricated overlapping structure of the jumper in the unfolded form.

In FIG. 3 shows a jumper guide.

In FIG. 4 shows a panel of a prefabricated ceiling structure.

In FIG. 5 shows a prefabricated overlapping bridge structure in an erected position and mounted stops.

In FIG. 6 shows a vertical position (front view).

In FIG. 7 shows a diagram for connecting a cylinder of compressed air to a pneumatic hose.

In FIG. Figure 8 shows the steps of assembling / disassembling the overlapping structure of the jumper.

Mine ventilation jumper (Fig. 1) includes a base 1 of the jumper, on which a device is installed to block the main section of the mine. At the base 1 of the jumper, mounting holes are made 2. Guides are inserted into the mounting holes 2 of the base (Fig. 3), consisting of a fixed part 3 and movable stops: roofing 4 and soil 5. A device is attached to the guides to overlap the main section of the mine with, for example, fasteners (not shown in the drawings).

A device for overlapping the main section of the mine is made in the form of a precast overlapping structure, the lower part 6 of which can be brought under the base 1 of the jumper. Prefabricated overlapping structure consists of panels 7, interconnected by means of rotary devices, for example, hinges 8. Panels 7 can be installed with the possibility of disconnection from each other. The panels 7 can be made of durable lightweight material, if a jumper is used to localize the fire, the material must be fireproof. In one or more panels 7 there are placed opening and closing devices for the passage of people, made with the possibility of opening / closing on both sides of the jumper and having a closed tightness to prevent air leaks through them. Opening and closing devices for the passage of people can be made in the form of windows 9 (Fig. 4) or doors or sashes. Between the window 9 (Fig. 4) and the frame 10 of the panel 7 (Fig. 4) there is a sealant (not shown in the drawing). The window 9 is opened using the handle 11. In this case, the panels 7 are arranged so that the windows 9 in the panels 7 are torn off on both sides of the jumper.

Along the perimeter of the prefabricated overlapping structure, grooves 12 are located in which a pneumatic sleeve 13 is placed, fixed to the base 1 of the jumper using fasteners 14.

To fix the jumper on one side, the soil stop 5 of the guide was used (Fig. 3). On the other hand, there are stops 15 (Fig. 5), which are inserted into the holders 16.

The mine ventilation jumper when used as a stationary device is additionally equipped with a system for storing and supplying air, for example, a can of compressed air 17, and a device for supplying and maintaining the required air pressure in the pneumatic hose.

In FIG. 7 shows: 18 - a dumping valve; 19 - a hose; 20 - control device; 21 is a device for measuring pressure.

Mine ventilation jumper works as follows.

In the place of erection of the jumper set the base 1 (Fig. 1), on which the entire structure will be mounted.

Under the base 1 is passed the lower part 6 of the prefabricated overlapping structure (Fig. 2). In the mounting holes 2 of the base 1, guides (Fig. 3) are inserted, consisting of a fixed part 3 and movable stops: roofing 4 and soil 5. Mount the prefabricated structure to the guides using, for example, fasteners (not shown in the drawing), to exclude the possibility "Folding" of the structure in the vertical plane, and due to the movable stop 5 - eliminating the fall in the horizontal plane.

Prefabricated overlapping structure consists of panels 7 (Fig. 2, 4), which are interconnected by hinges 8. Inside panels 7 there are windows 9.

If necessary, for example, at large production cross sections, when the prefabricated overlapping structure becomes large, it is necessary to provide for the possibility of disconnecting the panels 7 from each other in a transport state.

After that, in the grooves 12, located around the perimeter of the precast overlapping structure, insert the pneumatic hose 13. The pneumatic sleeve 13 is fixed to the base 1 of the jumper using fasteners 14.

To fix the jumper on one side, use the soil stop 5 of the guide (Fig. 3). On the other hand, set the stops 15 (Fig. 5), which are inserted into the holders 16 located on the precast overlapping structure.

Air can be pumped into a pneumatic hose using a can of compressed air 17. This eliminates the need for a power source. To prevent excess pressure in the pneumatic hose 13, a relief valve 18 may be provided.

Air injection into the pneumatic hose can be carried out either manually, i.e. using a gear pistol (not shown in the drawing) connected to the cylinder 17, or in an automated mode. For the latter case, which is typical when the mine ventilation jumper is stationary, a control device 20 is inserted into the hose 19 between the cylinder 17 and the pneumatic hose 13. When the level drops below a predetermined one determined by the device for measuring air pressure 21, through the control device 20, from cylinder 17 is supplied with air.

Due to the relief valve 18 and the air supply system consisting of devices 19, 20, 21, a constant pressure will be maintained in the pneumatic hose 13. In this case, the changing rock pressure will not affect the effectiveness of isolating the mine.

The advantage of the invention is that it allows you to reliably isolate the mine working both as a portable and as a stationary device and to allow people to pass through the jumper in both directions. In addition, the proposed jumper design is easy to erect and operate.

Claims (5)

1. Mine ventilation jumper, including the base of the jumper, on which is fixed a device for blocking the main section of the mine, a pneumatic hose, characterized in that the device for blocking the main section of the mine is made in the form of a prefabricated blocking structure attached to guides installed in the base of the jumper and consisting of a fixed part and movable stops: roofing and soil, prefabricated overlapping structure consists of panels interconnected by rotary devices, for example loops, with opening and closing devices for people passing in one or several panels, made with the possibility of opening / closing on both sides of the bridge and having a tightness in the closed state to prevent air leaks through them, the movable soil stop of the guides serves for fastening the jumper on the one hand, for fastening the jumper on the other hand, the prefabricated overlapping structure is equipped with stops, around the perimeter of the prefabricated overlapping structure tion are arranged grooves which are placed in pnevmorukav secured to the base web. 2. Mine ventilation jumper according to claim 1, characterized in that the opening and closing devices are made in the form of windows, or doors, or sashes. 3. Mine ventilation jumper according to claim 1, characterized in that the panels of the prefabricated overlapping structure are installed with the possibility of disconnecting from each other. 4. Mine ventilation jumper according to claim 1, characterized in that the panels are made of durable lightweight material, in the case of using a jumper to localize the fire, the material must be fireproof. 5. Mine ventilation jumper according to claim 1, characterized in that it is additionally equipped with a system for storing and supplying air, for example a can of compressed air, and a device for supplying and maintaining the required air pressure in the pneumatic hose when using the jumper as a stationary device.

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