Protective gate of underground structure

FIELD: mining.

SUBSTANCE: gate includes frame and bed filled with ferrofluid. Bed is designed bilayered and installed with possibility of location in stationary guide posts and in upper part of gate behind the frame. Gate is provided with source of magnetic field for interaction with ferrofluid in bed cavity. Bed covering in expanded state is located in vertical guide posts with possibility of thickening and thrust-locking interaction with inner edges of frame openings and guide posts. Source of magnetic field may be designed as a solenoid located in transverse plane around bed.

EFFECT: enhancing strength of bed, reliability of tightening of gaps between box and bed of protective gate, providing automatic locking of bed in box without use of any special mechanisms.

2 cl, 3 dwg

 

The invention relates to mining and construction and can be used in the manufacture of devices for isolation of underground structures in whole or in part in order to protect people and equipment against the damaging effects of air shock waves and prevent penetration into the protected space of pollutants and aggressive environment.

Devices of this kind is subject to strict requirements in terms of size and placement in extremely limited storage space underground structures, as well as the reliability of the protective elements.

Known shutter underground structures in the form of vent doors are closed, comprising a frame, on which hung a painting of a light flexible airtight material with the ribs, and means for feeding filler in the form of compressed gas to the individual shutter elements (see, for example, patent SU 1155771 A, publ. 1985).

Significant disadvantages of such a shutter include the complexity of its service, the incomplete opening, low strength and, most importantly, the inability to protection from exposure to intense shock waves, as well as against penetration of aggressive environment in the insulated area of underground space. Therefore, it cannot be applied in an underground structure with the above-mentioned protective with what properties, for example, in the subway, because of its design features, due to his appointment.

Object of the present invention is to provide a protective shutter underground structures, devoid of the above disadvantages of the known technical solutions and providing new technical result, namely the extension of functionality and guaranteed isolation of the protected zone of the underground facilities from the effects of shock waves and detrimental to the life and health of the people of aggressive environment. This result is achieved by increasing the strength of the blade while increasing the reliability of the sealing of the gaps between the frame and the canvas protective shutter and the software automatically locks the blade in the box without the use of special mechanisms.

The problem is solved in that the protective shutter comprising a frame, a filler and painting of water - and airtight elastic material with inlet and outlet pipes, as filler serves as a ferrofluid, a canvas made of double-layer with formation of a cavity between the layers of the elastic membrane, which is connected through an inlet pipe with filler, and the canvas is installed with the possibility of placing in the top part of the shutter and for working the Oia with the walls and bottom of the chute, formed between the vertical guide rails, pairs and rigidly fixed in the longitudinal plane at the sides of the contour of the frame of the canvas, the valve is provided with a source of a magnetic field established with the possibility of magnetic interaction with the ferromagnetic fluid in the cavity of the blade and sheath of the blade in the extended state is placed in a vertical guide posts with the possibility of sealing and spacer-locking engagement with the inner edges of the openings of the frame and the guiding pillars. Thus

the source of the magnetic field can be made in the form of a solenoid placed in the transverse plane around the canvas.

The essence of the invention and its advantages will become more clear and apparent from the following detailed description of example with reference to the accompanying drawings, which schematically:

Figure 1 - total vertical view in longitudinal section of the protective shutter of the present invention. The arrow shows the direction of the external influences on the shutter. The dashed line shows the approximate contour of the blade at the blank is omitted, but the off position.

Figure 2 is a view in cross-section B-B of figure 1 bolt in the locked position.

Figure 3 is a view in section a-a of figure 1.

In this example, the shutter is of the present invention installed in the entrance portal of the station of the subway tunnel.

As shown in figures 1 to 3 of the drawings, in the opening of the tunnel mounted frame 1 protective shutter flush with the inner surface of the tunnel. Behind and overlapping the contour of the frame 1 has a vertical output 2 with a horizontal recess 3 in the upper part. In the vertical development of the 2 on the sides of the contour of the frame 1 is stationary and installed in pairs of vertical rack rails 4 with fixed bearing (e.g., by welding) to the frame 1. The vertical rack rails 4 are made of steel angle profile and placed in such a way that their regiments formed in each side a pair of chute 5. On top of the frame 1, namely in the horizontal recess 3 fixedly mounted on the supporting platform 6. On the frame 6 is set to manual or Electromechanical winch with a horizontally positioned drum 7. The drum 7 worn in roll form, the fabric 8. One end (inner) of the blade 8 is fixed on the drum 7 and the other end (outer) hangs freely from the top to the placement and interaction with the walls and bottom of the lateral grooves 5.

Canvas 8 is made of double-layer with the formation of the cavity 9 between the layers of flexible membrane 10. The material for the elastic membrane 10 is air and water tight reinforced rubber. The inner and outer ends of the blade 8 is securely fastened to each other is to ensure the tightness of the cavity 9 in the shell 10 and create a hard edge in the interaction of the blade 8 with the walls and bottom of the trenches 5. Canvas 8 is placed in the conduit 5 with the possibility spacer-seal interaction of the shell 10 with the inner surface of the frame 1, somadasa with the inner surface of the tunnel, supported on the rear side rack rails 4.

The protective shutter of the present invention is equipped with a filler cavity 9 of the blade 8 which is connected with the latter through the inlet 11 and outlet 12 of the nozzle. As filler cavity 9 applied ferromagnetic liquid(for example, 50%colloidal solution in water of particles of magnetite Fe2O3nanometer size associated with surface-active substance).

Protective shutter is also provided with a source of a magnetic field of 13 for the magnetic effects on the filler in the cavity 9 of the shell 10. In this example, as the source of the magnetic field applied to the solenoid, still placed in the vertical development of 2 overlapping contour elastic membrane 10 in the transverse plane of the tunnel (in the drawings shows only one coil of the solenoid).

The work produced by the present invention and mounted in an underground structure with a protective shutter is as follows.

In the absence of the threat of external influences on the subject of protection of the underground construction of the shutter is always open for normal transport mode to work the s underground structures.

In the situation, causing the need to use protection (for example, before carrying out blasting operations in the vicinity of underground facilities or with the threat of natural disasters in the form of a landslide, floods and other phenomena), 8 tightly down (manually or using hoist 7) and is injected into the cavity 9 of the shell 10 ferromagnetic liquid before placing the shell 10 between the frame 1 and the vertical guide posts 4. At the time of the Commission of any of the specified events occurs a powerful shock wave that towards the shutter is registered by the pressure sensor (not shown). The converted signal from the pressure sensor sends the command to switch on the solenoid 13. The magnetic field of the solenoid 13 acts on the ferromagnetic fluid with instant changes its aggregate state to the solid, increasing the strength of the blade 8. In this hardened state canvas 8 takes the shock wave and prevents the penetration into the protected space of the tunnel aggressive environment. By spreading out the elasticity of the shell 10, the conditions for the retention hardened solid filler blade 8 in a secure locked position between the frame 1 and the stationary guide posts 4 without additional locking means.

If you cancel the need to protect the earth structures shutter open by performing the above procedure in reverse order.

Thus, the present invention allows to obtain a simple, high-tech and reliable protective shutter underground structures with unexpected technical property, which consists in increasing the working strength of the fabric simultaneously with the locking mechanism in the protective shutter underground structures by interaction of the canvas variable stiffness with a motionless pillar.

1. Protective shutter underground structures, comprising a frame, a filler and painting of the water-impermeable elastic material with inlet and outlet nozzles, characterized in that the filler is a ferrofluid, a canvas made of double-layer with formation of a cavity between the layers and an elastic membrane, which is connected through an inlet pipe with filler, and the canvas is installed with the possibility of placing in the top part of the bolt and the interaction with the walls and bottom of the troughs formed between the vertical guide rails, pairs and rigidly fixed in the longitudinal plane at the sides of the contour of the frame, the valve is provided with a source of a magnetic field established with the possibility of magnetic interaction with the ferromagnetic fluid in the cavity of the blade and sheath of the blade in the extended state are placed in vertical on rawsumer racks with the possibility of sealing and spacer-locking engagement with the inner edges of the openings of the frame and the guiding pillars.

2. Protective shutter according to claim 1, characterized in that the source of the magnetic field is made in the form of a solenoid placed in the transverse plane around the web.



 

Same patents:

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in underground mining of deposits. Proposed method comprises producing rock barrier from rock lumps, passing drain tube through rock barrier and fitting air cylinders on said rock barrier. Rock barrier is made layer-by-layer. One layer laid, rock is underpoured by solidifying concrete mix and, with concrete mix set, upper layer is laid. Note here that aforesaid jobs are repeated to preset height of rock barrier.

EFFECT: higher efficiency.

2 cl, 2 dwg

FIELD: mining engineering.

SUBSTANCE: invention relates to facilities field, providing security level increasing in mining engineering, and can be used for temporary isolation of mine opening and protection of staff. Device includes inflatable crosspiece made of flexible, airtight material, outfitted by gate valves and autonomous source of compressed gas feeding. Crosspiece is implemented in the form of isolated, oriented lengthwise mine opening axisymmetric units, consisting of set of flexible inflatable tanks-bays. Additionally units are in layers installed in cross section of mine opening, and symmetry axis in each following layer is shifted relative to axis of previous layer by value, equal to half of placement pitch in unit of inflatable tanks-bays.

EFFECT: increasing of security level of rescue operations implementation at liquidation of incidents, providing of shaping mobility of inflatable crosspiece and reliable sealing of mine opening of any section with complex relief of walls.

5 cl, 2 dwg

Inflatable jumper // 2153074

FIELD: mining engineering.

SUBSTANCE: invention relates to facilities field, providing security level increasing in mining engineering, and can be used for temporary isolation of mine opening and protection of staff. Device includes inflatable crosspiece made of flexible, airtight material, outfitted by gate valves and autonomous source of compressed gas feeding. Crosspiece is implemented in the form of isolated, oriented lengthwise mine opening axisymmetric units, consisting of set of flexible inflatable tanks-bays. Additionally units are in layers installed in cross section of mine opening, and symmetry axis in each following layer is shifted relative to axis of previous layer by value, equal to half of placement pitch in unit of inflatable tanks-bays.

EFFECT: increasing of security level of rescue operations implementation at liquidation of incidents, providing of shaping mobility of inflatable crosspiece and reliable sealing of mine opening of any section with complex relief of walls.

5 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in underground mining of deposits. Proposed method comprises producing rock barrier from rock lumps, passing drain tube through rock barrier and fitting air cylinders on said rock barrier. Rock barrier is made layer-by-layer. One layer laid, rock is underpoured by solidifying concrete mix and, with concrete mix set, upper layer is laid. Note here that aforesaid jobs are repeated to preset height of rock barrier.

EFFECT: higher efficiency.

2 cl, 2 dwg

FIELD: mining.

SUBSTANCE: gate includes frame and bed filled with ferrofluid. Bed is designed bilayered and installed with possibility of location in stationary guide posts and in upper part of gate behind the frame. Gate is provided with source of magnetic field for interaction with ferrofluid in bed cavity. Bed covering in expanded state is located in vertical guide posts with possibility of thickening and thrust-locking interaction with inner edges of frame openings and guide posts. Source of magnetic field may be designed as a solenoid located in transverse plane around bed.

EFFECT: enhancing strength of bed, reliability of tightening of gaps between box and bed of protective gate, providing automatic locking of bed in box without use of any special mechanisms.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: construction method of stowing barricade in mine working involves creation of rock bank from rock lumps in layers with passage of a drain pipe and installation of pneumatic bottles on the rock bank. In each layer, lumps of rock are loaded to covers made from metal mesh. Sizes of mesh cells are less than minimum size of rock lump and divisible ratio of mesh length to its width, which is equal to 2:1. Filled covers are laid in odd-numbered layers with a long side perpendicular to longitudinal axis of stowing working, and in even-numbered layers parallel to longitudinal axis of stowing working. Height of filled covers and their number as to the height of stowing working are determined depending on height of a pneumatic bottle in an empty state, height of stowing working, number of filled covers as to the height of stowing working, height of cover filled with rock lumps, and height of the pneumatic bottle in a filled state.

EFFECT: improving efficiency of stowing works.

2 dwg

Up!