CN113586135A - Mining disaster area sealing and unsealing device and using method thereof - Google Patents
Mining disaster area sealing and unsealing device and using method thereof Download PDFInfo
- Publication number
- CN113586135A CN113586135A CN202111041975.5A CN202111041975A CN113586135A CN 113586135 A CN113586135 A CN 113586135A CN 202111041975 A CN202111041975 A CN 202111041975A CN 113586135 A CN113586135 A CN 113586135A
- Authority
- CN
- China
- Prior art keywords
- window
- air
- window frame
- concrete wall
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 12
- 239000003245 coal Substances 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/79—Power-operated mechanisms for wings with automatic actuation using time control
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/12—Dam doors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention relates to a mining disaster area sealing and unsealing device and a use method thereof, belonging to the technical field of coal mine safety, wherein the device comprises a concrete wall intersecting a mine opening, a window frame positioned in the concrete wall, an air window with one side connected with the window frame through a hinge, a connecting rod driving mechanism in sliding connection with the air window and controlling the air window to be opened and closed, a pneumatic control system capable of controlling the movement of the connecting rod driving mechanism in a timing manner, and a locking device for tightly locking the air window on the window frame; the air window comprises an arc window plate facing to a closed area in the mine hole and a plane window plate facing to the safety channel outside the mine hole. The device adopts a mode of combining the concrete wall and the steel structure air window, is of a rigid structure, has good compression resistance effect and improves the sealing quality; the timing pneumatic control operation is adopted to open and close the air window, so that the injury to operators caused by secondary explosion during construction is effectively avoided.
Description
Technical Field
The invention belongs to the technical field of coal mine safety, and particularly relates to a mining disaster area sealing and unsealing device and a using method thereof.
Background
Coal mine fires are one of the main disasters that directly threaten coal mine safety and worker life. When the fire disaster can not be extinguished by a direct fire extinguishing method, or due to the occurrence of combustible gas or other conditions, a closed partition wall is quickly and effectively established to separate an inflammable area, a harmful gas source or a gas gathering area, and the method is a main way and an effective means for shortening the duration time of the fire disaster, reducing accident loss and avoiding secondary disasters. When the fire zone is constructed or unsealed, particularly at the moment of completing plugging and initial opening, gas components in the fire zone can change greatly, and the gas is easy to accumulate in an explosion concentration range to explode and hurt operators.
Disclosure of Invention
In view of the above, the invention aims to provide a mining disaster area sealing and unsealing device and a use method thereof, wherein a mode of combining a concrete wall and a steel structure air window is adopted, all the devices are rigid structures, the compression resistance effect is good, and the sealing quality is improved; the wind window is opened and closed by adopting time-delay pneumatic control operation, so that the injury to operators caused by secondary explosion during construction is effectively avoided.
In order to achieve the purpose, the invention provides the following technical scheme:
a mining disaster area sealing and unsealing device comprises a concrete wall intersecting a mine tunnel, a window frame positioned in the concrete wall, an air window, a connecting rod driving mechanism, a pneumatic control system and a locking device, wherein one side of the air window is connected with the window frame through a hinge; the air window comprises an arc window plate facing to a closed area in the mine hole and a plane window plate facing to the safety channel outside the mine hole.
Further, the arc luffer boards include the arc shell board and weld the fixed plate on the arc shell board, be equipped with the reinforcing plate between arc shell board and the fixed plate, the arc shell board material is high strength alloy steel.
Further, the window frame department that corresponds all around at the fixed plate and the plane luffer board back all is provided with seal structure, seal structure include the rectangular pipe and with rectangular pipe assorted baffle, fixed plate and plane luffer board and corresponding rectangular pipe and baffle form sealed slot, sealed ditch inslot is equipped with the sealing strip, be equipped with the metal layering on the window frame that the sealing strip corresponds, the metal layering compresses tightly the sealing strip when arc luffer board and plane luffer board are closed.
Furthermore, the connecting rod driving mechanism is positioned in a three-dimensional cavity formed by a window frame in the concrete wall, and comprises a connecting block, a multi-connecting-rod mechanism symmetrically hinged at two ends of the connecting block and moving along with the connecting block, and a sliding rail mechanism arranged on the arc window plate and the plane window plate and matched with the multi-connecting-rod mechanism.
Furthermore, a threaded hole for connecting a pneumatic control system is formed in the middle of the connecting block, and grooves and pin holes connected with a multi-link mechanism are formed in the two ends of the connecting block;
the multi-connecting-rod mechanism comprises two short connecting rods symmetrically hinged to grooves on two sides of the connecting block and two long connecting rods hinged to the two short connecting rods respectively, and the positions, close to the hinge of the short connecting rods, of the two long connecting rods are hinged to a stud fixed to the window frame to serve as rotating fulcrums;
the slide rail mechanism comprises rails arranged on the arc-shaped window plate and the plane window plate, a sliding piece which slides on the rails and is connected with two long connecting rods of the multi-connecting-rod mechanism, and a limiting block arranged at one end, close to the hinge, of the rail.
Further, the method comprises the following steps: the pneumatic control system comprises an air source, a pneumatic timing control box communicated with the air source, and a driving air cylinder communicated with the pneumatic timing control box and driving the connecting rod driving mechanism to move.
Furthermore, the gas source is positioned outside the concrete wall body and faces one side of the safety channel, and comprises a compressed gas cylinder, a gas cylinder valve arranged on the compressed gas cylinder and a pressure reducer communicated with the compressed gas cylinder;
the pneumatic timing control box is positioned outside the concrete wall body and faces one side of the safety channel, and comprises a box body and a valve combination which is fixed on the inner surface of the box body and used for performing timing output control on input compressed air;
the driving cylinder is arranged in a three-dimensional cavity channel formed by the concrete wall and the window frame and is a double-acting cylinder with bidirectional air intake.
Furthermore, the locking device is arranged on the front face of the plane window plate and comprises a rotating link mechanism arranged on the window frame on the opposite side of the hinge, and a wedge-shaped block and a limiting block which are welded on the front face of the plane window plate and are locked with the rotating link mechanism in a matched mode.
Further, the rotating link mechanism comprises a rotating shaft seat fixedly welded on the window frame, a rotating shaft rotatably arranged in the rotating shaft seat, and a rotating block sleeved on the rotating shaft and rotating synchronously with the rotating shaft;
the wedge block is fixedly arranged on the front face of the plane window plate and corresponds to the rotating block, and the distance from the free end of the rotating block to the axis of the rotating shaft is greater than the distance from the edge of the wedge block on the side close to the rotating shaft to the axis of the rotating shaft and is less than or equal to the distance from the edge of the wedge block on the side far away from the rotating shaft to the axis of the rotating shaft;
the free end of the rotating block is sleeved with a self-lubricating bearing which is matched with the wedge block to slide.
A mining disaster area sealing and unsealing method adopts the mining disaster area sealing and unsealing device, and comprises the following steps:
s1, sealing a mine hole in a disaster area;
s101, grooving or arranging anchor rods on four walls of a mine hole at a position where a sealed wall is to be constructed, and pouring a concrete wall from the bottom to a proper height;
s102, mounting a window frame of the mining disaster area sealing and unsealing device on a concrete wall, hinging one side of an air window on the window frame, connecting the air window with a connecting rod driving mechanism in a cavity formed by the window frame, controlling the movement of the connecting rod driving mechanism through a pneumatic control system positioned on one side of the concrete wall facing a safety channel, expanding arc-shaped window plates and plane window plates to the maximum position, continuously pouring the concrete wall around the device until the whole mine hole section is filled, and only reserving a three-dimensional cavity channel formed by the concrete wall and the window frame;
s103, setting timed closing time of the pneumatic control system according to requirements, and after people evacuate to a safety area, controlling the connecting rod driving mechanism to close the air window by the pneumatic control system when the time reaches the timed closing time set by the pneumatic control system;
s104, manually operating a locking device to tightly lock the plane window plate on the window frame to complete sealing of a fire area;
s2, unsealing the mine holes in the disaster area;
s201, opening a locking device;
s202, rotating a switch of the pneumatic control system to a starting position, setting the timing starting time of the pneumatic control system according to requirements, and enabling an operator to leave; when the set timing opening time of the pneumatic control system is reached, the pneumatic control system controls the driving mechanism to open the air window;
s203, when the air in the mine hole is ventilated for a period of time, personnel enter the mine hole and remove the concrete wall to finish unsealing.
The invention has the beneficial effects that:
1. the air window adopts a rigid structure, the compression resistance effect is good, and the sealing structure is arranged on the air window, so that the sealing quality is improved. Through setting up the air window into towards the interior airtight regional arc luffer boards of mine hole to set up between the arc coverboard of arc luffer boards and the fixed plate of welding on the arc coverboard and strengthen the version, and the arc coverboard of arc luffer boards adopts the alloy steel of high strength, makes its atress performance obtain strengthening, can weaken the explosion impact force that is used in on the arc coverboard moreover, makes this structure bulk strength good, has the better ability of resisting the explosion impact, makes the airtight safe and reliable more of fire district.
2. This application closes and opens through time delay pneumatic control system control wind window, and its delay time can set up wantonly in certain extent, and the personnel can withdraw to safe region before accomplishing the wind window and close and open, effectively avoids airtight shutoff and opens the injury that takes place secondary explosion in the twinkling of an eye and lead to the fact operating personnel.
3. This application not only can effectively lock the wind window through setting up blocking device, and the operation is swift convenient moreover, can prevent through setting up stop gear that blocking device excessive operation and lead to the shutting inefficacy.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of an installation structure of a mining disaster area sealing and unsealing device;
FIG. 2 is a sectional view of a mining disaster area sealing and unsealing apparatus when the section A-A of FIG. 1 is closed;
FIG. 3 is a sectional view of a mining disaster area sealing and unsealing apparatus when the section A-A of FIG. 1 is opened;
FIG. 4 is an enlarged schematic view of the seal at B in FIG. 2;
FIG. 5 is an enlarged view of the latch of FIG. 2 at C;
reference numerals: the air window comprises a window frame 1, a metal pressing strip 11, an air window 2, an arc window plate 21, an arc shell plate 211, a fixing plate 212, a reinforcing plate 213, a plane window plate 22, a rectangular pipe 23, a partition plate 24, a sealing groove 25, a sealing strip 26, a sealing structure 3, a pneumatic control system 4, an air source 41, a compressed air cylinder 411, an air cylinder valve 412, a pressure reducer 413, a pneumatic timing control box 42, a driving air cylinder 43, a piston rod 431, a connecting rod driving mechanism 5, a connecting block 51, a threaded hole 511, a groove 512, a pin hole 513, a multi-link mechanism 52, a short connecting rod 521, a long connecting rod 522, a rotating fulcrum 523, a sliding rail mechanism 53, a smooth rod sliding rail 531, a limiting block 532, a locking device 6, a rotating link mechanism 61, a rotating shaft seat 611, a rotating shaft 612, a rotating block 613, a self-lubricating bearing 614, a handle 615, a wedge-shaped block 62, a limiting block 63, a hinge 7, a hinge rotating shaft 71 and a concrete wall 8.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-5, a mining disaster area sealing and unsealing device comprises a window frame 1 positioned in a concrete wall 8 of a cross-cut mine tunnel, an air window 2 with one side connected with the window frame 1 through a hinge 7, a connecting rod driving mechanism 5 connected with the air window 2 in a sliding manner and controlling the opening and closing of the air window 2, a pneumatic control system 4 capable of controlling the movement of the connecting rod driving mechanism 5 in a timing manner, and a locking device 6 for locking the air window 2 on the window frame 1; the air window 2 comprises an arc-shaped window plate 21 facing the inner closed area of the mine hole and a plane window plate 22 facing the outer safety channel of the mine hole, the arc-shaped window plate 21 comprises an arc-shaped shell plate 211 and a fixed plate 212 welded on the arc-shaped shell plate 211, a reinforcing plate 213 is arranged between the arc-shaped shell plate 211 and the fixed plate 212, and the arc-shaped shell plate 211 is made of high-strength alloy steel.
The periphery of the back faces of the fixed plate 212 and the flat window plate 22 corresponding to the window frame is provided with a sealing structure 3, the sealing structure 3 comprises a rectangular pipe 23 and a partition plate 24 matched with the rectangular pipe 23, the fixed plate 212 and the flat window plate 22, the corresponding rectangular pipe 23 and the corresponding partition plate 24 form a sealing groove 25, a sealing strip 26 is arranged in the sealing groove 25, a metal pressing strip 11 is arranged on the window frame 1 corresponding to the sealing strip 26, and the metal pressing strip 11 presses the sealing strip 26 when the arc-shaped window plate 21 and the flat window plate 22 are closed. The connecting rod driving mechanism 5 is located in a three-dimensional cavity formed by the window frame 1 in the concrete wall 8, and comprises a connecting block 51, a multi-connecting rod mechanism 52 symmetrically hinged at two ends of the connecting block 51 and moving along with the connecting block 51, and a sliding rail mechanism 53 arranged on the arc window plate 21 and the plane window plate 22 and matched with the multi-connecting rod mechanism 52. A threaded hole 511 matched with a piston rod 431 of the driving cylinder 43 is arranged in the middle of the connecting block 51, and a groove 512 and a pin hole 513 connected with the multi-link mechanism 52 are arranged at two ends of the connecting block 51; the multi-link mechanism 52 comprises two short links 521 symmetrically hinged on grooves 512 on two sides of the connecting block 51 and two long links 522 respectively hinged with the two short links 521, and a stud fixed with the window frame 1 is arranged at the position, close to the hinge of the short links 521, of the two long links 522 and serves as a rotary fulcrum 523; the slide rail mechanism 53 includes rails provided on the curved window panel 21 and the planar window panel 22, a slider that slides on the rails and is connected to the two long links 522 of the multi-link mechanism 52, and a stopper 532 provided at one end of the rails near the hinge;
in this embodiment, the tracks disposed on the arc window plate 21 and the plane window plate 22 are smooth rod slide rails 531, the sliding part on the smooth rod slide rails 531 is composed of a supporting rod perpendicular to the smooth rod slide rails 531 and two sets of lubricating bearings on the supporting rod, the supporting rod and the lubricating bearings sleeved on the supporting rod are matched with the smooth rod slide rails 531, and when the supporting rod moves in parallel on the smooth rod slide rails 531, the wind window 2 is driven to rotate along the hinge rotating shaft 71. The slider and rail can also be other mechanical structures that can accomplish this function, such as a slider and a rail.
When the arc window plate 21 and the plane window plate 22 are in a closed state, the slider is positioned at one end far away from the hinged part of the arc window plate 21 and the plane window plate 22 and the window frame 1 on the track, and the whole multi-link mechanism 52 is in an M shape; when the curved window panel 21 is subjected to an external force such as an explosion impact, the self-tightening structure formed by the drive link mechanism causes the curved window panel 21 to be locked to the window frame 1.
The pneumatic control system 4 comprises an air source 41, a pneumatic timing control box 42 communicated with the air source 41, and a driving air cylinder 43 communicated with the pneumatic timing control box 42 and driving the connecting rod driving mechanism 5 to move; the gas source 41 is positioned on one side of the concrete wall body facing the safety channel and comprises a compressed gas cylinder 411, a gas cylinder valve 412 arranged on the compressed gas cylinder and a pressure reducer 413 communicated with the compressed gas cylinder; the pneumatic timing control box 42 is also positioned on one side of the concrete wall body facing the safety channel and comprises a box body and a valve combination which is fixed on the inner surface of the box body and used for performing timing output control on input compressed air; the driving cylinder 43 is a double-acting cylinder which can be charged in two directions and is arranged on the lower surface of a cubic cavity formed by the window frame 1.
The locking device 6 is arranged on the front face of the plane window plate and comprises a rotating link mechanism 61 arranged on the window frame 1 opposite to the hinge, a wedge-shaped block 62 welded on the front face of the plane window plate 22 and locked with the rotating link mechanism 61 in a matching way, and a limiting block 63; the rotating link mechanism 61 comprises a rotating shaft seat 611 fixedly welded on the window frame 1, a rotating shaft 612 rotatably installed in the rotating shaft seat 611, and a rotating block 613 sleeved on the rotating shaft 612 and rotating synchronously with the rotating shaft 612; the wedge block 62 is fixedly installed on the front surface of the plane window panel 22 and is arranged corresponding to the rotating block 613, and the distance from the free end of the rotating block 613 to the axis of the rotating shaft 612 is greater than the distance from the edge of the wedge block 62 close to the rotating shaft 612 to the axis of the rotating shaft 612 and less than or equal to the distance from the edge of the wedge block 62 far from the rotating shaft 612 to the axis of the rotating shaft 612; the free end of the rotating block 613 is sleeved with a self-lubricating bearing 614 which is matched with the wedge block 62 to slide. The friction resistance of the rotating block 613 sliding on the surface of the wedge block 62 is reduced by arranging the self-lubricating bearing 614, so that the locking force distribution during locking is more uniform, and the locking device 6 is more flexible and labor-saving to operate; the middle part of the rotating block 613 is welded with a handle 615 for pushing the transferring block to rotate, and the driving force of the rotating block 613 can be reduced by arranging the handle 615, so that the locking device 6 is more flexible and labor-saving to operate.
A mining disaster area sealing and unsealing method is disclosed, and the mining disaster area sealing and unsealing device comprises the following steps:
s1, sealing a mine hole in a disaster area;
s101, grooving or arranging anchor rods on four walls of a mine hole at a position where a closed wall is to be constructed, and pouring a concrete wall 8 to a proper height from the bottom;
s102, installing the devices such as the window frame 1, the air window 2, the connecting rod driving mechanism 5 and the driving cylinder 43 of the pneumatic control system 4 of the mining disaster area sealing and unsealing device to the upper part of a concrete wall 8 which is not poured, retracting the piston rod 431 of the driving cylinder 43, enabling the long connecting rod 522 of the connecting rod driving mechanism 5 to move around the rotating fulcrum 523, expanding the arc window plate 21 and the plane window plate 22 to the maximum position, enabling the air flow to smoothly pass through the air window 2, ensuring that the air flow passing through the section of the mine tunnel does not generate large change in the sealing construction process, continuously pouring the concrete wall 8 around the device until the whole section of the mine tunnel is filled, and only reserving a three-dimensional cavity channel formed by the window frame 1;
s103, connecting the pneumatic control system 4, setting the timing opening time of the pneumatic control system 4 according to requirements, after people leave a safety area and the time reaches the timing opening time set by the pneumatic control system 4, starting air supply to the driving cylinder 43 by the pneumatic control box, extending a piston rod 431 of the driving cylinder 43, and rapidly closing the arc window plate 21 and the plane window plate 22 under the driving of the driving cylinder 43 to block the wind flow of the roadway;
s104, manually operating the locking device 6, rotating a handle 615 on the locking device 6, rotating the rotating block 613 to a locking position on the wedge-shaped block 62, and tightly locking the plane window plate 22 on the window frame 1 to finish sealing of a fire area;
s2, unsealing the mine holes in the disaster area;
s201, opening the locking device 6; turning a handle 615 on the lock 6 to rotate the turning block 613 away from the wedge block 62;
s202, connecting the pneumatic control system 4, rotating a switch of the pneumatic control system 4 to an opening position, setting the timing opening time of the pneumatic control system 4 as required, opening a gas cylinder valve 412, and enabling an operator to leave; when the timing opening time set by the pneumatic control system 4 is reached, the pneumatic control box starts to supply air to the driving cylinder 43, the piston rod 431 of the driving cylinder 43 retracts, and the arc window plate 21 and the plane window plate 22 are driven by the driving cylinder 43 to be rapidly opened so as to be communicated with the spaces on the two sides of the sealing wall.
S203, when the air in the mine hole is circulated for a period of time, personnel enter the mine hole and remove the concrete wall 8 to finish unsealing.
This application is through setting up the windshield 2 to the arc luffer boards 21 of airtight region in towards the mine cave and the plane luffer boards 22 that are located the airtight region outside, and arc luffer boards 21 include arc shell plate 211 and the fixed plate 212 of welding on arc shell plate 211 to set up between the arc shell plate 211 of arc luffer boards 21 and the fixed plate 212 of welding on arc shell plate 211 and strengthen the version, and the arc shell plate 211 of arc luffer boards 21 adopts the alloy steel of high strength, makes its atress performance strengthened. The explosion impact force acting on the arc-shaped shell plate 211 in any direction can be decomposed into two component forces, one component force is perpendicular to the arc-shaped shell plate 211, the other component force is parallel to the tangent line of the arc-shaped shell plate 211, the component forces parallel to the tangent line of the arc are symmetrical and mutually offset, the force perpendicularly acting on the door body is smaller than the original acting force, the explosion impact force is weakened, the integral strength of the structure is good, and the structure has better capacity of resisting explosion impact. The arc window plate 21 facing the inner closed area of the mine hole can bear the impact pressure not lower than 0.5MPa, and the plane window plate 22 facing the outer safety channel of the mine hole can bear the impact pressure not lower than 0.1MPa, so that the performance of the air window 2 bearing explosion shock waves is greatly enhanced, and the fire area is closed more safely and reliably.
The air window 2 is controlled to be closed and opened through the timing pneumatic control system 4, the timing time can be set randomly between (1-999) s, people can evacuate to a safe area before the air window 2 is closed and opened, and damage to operators caused by secondary explosion generated in the moment of closing, plugging and opening is effectively avoided.
This application not only can effectively lock wind window 2 through setting up blocking device 6, and the operation is swift convenient moreover, can prevent blocking device 6 excessive operation and lead to the shutting inefficacy through setting up stop gear.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. A mining disaster area is airtight and is opened sealing device which characterized in that: the device comprises a concrete wall which crosses a mine opening, a window frame which is positioned in the concrete wall, an air window with one side connected with the window frame through a hinge, a connecting rod driving mechanism which is connected with the air window in a sliding way and controls the opening and closing of the air window, a pneumatic control system which can control the movement of the connecting rod driving mechanism in a timing way, and a locking device which locks the air window on the window frame; the air window comprises an arc window plate facing to a closed area in the mine hole and a plane window plate facing to the safety channel outside the mine hole.
2. The mining disaster area sealing and unsealing device according to claim 1, characterized in that: the arc luffer boards include the arc shell board and weld the fixed plate on the arc shell board, be equipped with the reinforcing plate between arc shell board and the fixed plate, the arc shell board material is high strength alloy steel.
3. The mining disaster area sealing and unsealing device according to claim 2, characterized in that: the window frame that corresponds all is provided with seal structure around the fixed plate and the plane luffer board back, seal structure include the rectangular pipe and with rectangular pipe assorted baffle, fixed plate and plane luffer board and corresponding rectangular pipe and baffle form sealed slot, sealed ditch inslot is equipped with the sealing strip, be equipped with the metal layering on the window frame that the sealing strip corresponds, the metal layering compresses tightly the sealing strip when arc luffer board and plane luffer board are closed.
4. The mining disaster area sealing and unsealing device according to claim 1, characterized in that: the connecting rod driving mechanism is positioned in a three-dimensional cavity formed by a window frame in the concrete wall and comprises a connecting block, a multi-connecting-rod mechanism symmetrically hinged to two ends of the connecting block and moving along with the connecting block, and a sliding rail mechanism arranged on the arc window plate and the plane window plate and matched with the multi-connecting-rod mechanism.
5. The mining disaster area sealing and unsealing device according to claim 4, characterized in that: the middle of the connecting block is provided with a threaded hole for connecting a pneumatic control system, and two ends of the connecting block are provided with a groove and a pin hole which are connected with a multi-connecting-rod connecting mechanism;
the multi-connecting-rod mechanism comprises two short connecting rods symmetrically hinged to grooves on two sides of the connecting block and two long connecting rods hinged to the two short connecting rods respectively, and the positions, close to the hinge of the short connecting rods, of the two long connecting rods are hinged to a stud fixed to the window frame to serve as rotating fulcrums;
the slide rail mechanism comprises rails arranged on the arc-shaped window plate and the plane window plate, a sliding piece which slides on the rails and is connected with two long connecting rods of the multi-connecting-rod mechanism, and a limiting block arranged at one end, close to the hinge, of the rail.
6. The mining disaster area sealing and unsealing device according to claim 1, characterized in that: the pneumatic control system comprises an air source, a pneumatic timing control box communicated with the air source, and a driving air cylinder communicated with the pneumatic timing control box and driving the connecting rod driving mechanism to move.
7. The mining disaster area sealing and unsealing device according to claim 6, characterized in that: the gas source is positioned outside the concrete wall body and faces one side of the safety channel, and comprises a compressed gas cylinder, a gas cylinder valve arranged on the compressed gas cylinder and a pressure reducer communicated with the compressed gas cylinder;
the pneumatic timing control box is positioned outside the concrete wall body and faces one side of the safety channel, and comprises a box body and a valve combination which is fixed on the inner surface of the box body and used for performing timing output control on input compressed air;
the driving cylinder is arranged in a three-dimensional cavity channel formed by the concrete wall and the window frame and is a double-acting cylinder with bidirectional air intake.
8. The mining disaster area sealing and unsealing device according to claim 1, characterized in that: the locking device is arranged on the front face of the plane window plate and comprises a rotating connecting rod mechanism arranged on the window frame on the opposite side of the hinge, and a wedge block and a limiting block which are welded on the front face of the plane window plate and locked with the rotating connecting rod mechanism in a matched mode.
9. The mining disaster area sealing and unsealing device according to claim 8, characterized in that: the rotating connecting rod mechanism comprises a rotating shaft seat fixedly welded on the window frame, a rotating shaft rotatably arranged in the rotating shaft seat, and a rotating block sleeved on the rotating shaft and rotating synchronously with the rotating shaft;
the wedge block is fixedly arranged on the front face of the plane window plate and corresponds to the rotating block, and the distance from the free end of the rotating block to the axis of the rotating shaft is greater than the distance from the edge of the wedge block on the side close to the rotating shaft to the axis of the rotating shaft and is less than or equal to the distance from the edge of the wedge block on the side far away from the rotating shaft to the axis of the rotating shaft;
the free end of the rotating block is sleeved with a self-lubricating bearing which is matched with the wedge block to slide.
10. A mining disaster area sealing and unsealing method is characterized by comprising the following steps: the mining disaster area sealing and unsealing device as claimed in any one of claims 1 to 9 comprises the following steps:
s1, sealing a mine hole in a disaster area;
s101, grooving or arranging anchor rods on four walls of a mine hole at a position where a sealed wall is to be constructed, and pouring a concrete wall from the bottom to a proper height;
s102, mounting a window frame of the mining disaster area sealing and unsealing device on a concrete wall, hinging one side of an air window on the window frame, connecting the air window with a connecting rod driving mechanism in a cavity formed by the window frame, controlling the movement of the connecting rod driving mechanism through a pneumatic control system positioned on one side of the concrete wall facing a safety channel, expanding arc-shaped window plates and plane window plates to the maximum position, continuously pouring the concrete wall around the device until the whole mine hole section is filled, and only reserving a three-dimensional cavity channel formed by the concrete wall and the window frame;
s103, setting timed closing time of the pneumatic control system according to requirements, and after people evacuate to a safety area, controlling the connecting rod driving mechanism to close the air window by the pneumatic control system when the time reaches the timed closing time set by the pneumatic control system;
s104, manually operating a locking device to tightly lock the plane window plate on the window frame to complete sealing of a fire area;
s2, unsealing the mine holes in the disaster area;
s201, opening a locking device;
s202, rotating a switch of the pneumatic control system to a starting position, setting the timing starting time of the pneumatic control system according to requirements, and enabling an operator to leave; when the set timing opening time of the pneumatic control system is reached, the pneumatic control system controls the driving mechanism to open the air window;
s203, when the air in the mine hole is ventilated for a period of time, personnel enter the mine hole and remove the concrete wall to finish unsealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041975.5A CN113586135A (en) | 2021-09-07 | 2021-09-07 | Mining disaster area sealing and unsealing device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041975.5A CN113586135A (en) | 2021-09-07 | 2021-09-07 | Mining disaster area sealing and unsealing device and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113586135A true CN113586135A (en) | 2021-11-02 |
Family
ID=78241369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111041975.5A Pending CN113586135A (en) | 2021-09-07 | 2021-09-07 | Mining disaster area sealing and unsealing device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113586135A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1272380A (en) * | 1960-10-28 | 1961-09-22 | Mineur Becourt | Automatic pivot door control installation |
| CN102418469A (en) * | 2011-10-27 | 2012-04-18 | 中煤科工集团重庆研究院 | Airtight blast door for underground refuge chamber |
| CN203515658U (en) * | 2013-10-16 | 2014-04-02 | 陈传新 | Automatic closed remote-control fire protection device for coal mining area |
| CN107387162A (en) * | 2017-06-29 | 2017-11-24 | 山东科技大学 | A kind of tunnel hermatic door, tunnel brattice and preparation method thereof |
| CN109538278A (en) * | 2018-10-08 | 2019-03-29 | 阳泉煤业（集团）有限责任公司 | A kind of open enclosure method of underground coal mine flame range |
| CN211715159U (en) * | 2020-03-04 | 2020-10-20 | 安徽理工大学 | Novel intelligent control system for underground air door |
| CN112360540A (en) * | 2020-11-27 | 2021-02-12 | 中煤科工集团重庆研究院有限公司 | Pneumatic control system for controlling wind window of mining disaster area |
| CN215672314U (en) * | 2021-09-07 | 2022-01-28 | 中煤科工集团重庆研究院有限公司 | Mining disaster area is airtight and is opened sealing device |
-
2021
- 2021-09-07 CN CN202111041975.5A patent/CN113586135A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1272380A (en) * | 1960-10-28 | 1961-09-22 | Mineur Becourt | Automatic pivot door control installation |
| CN102418469A (en) * | 2011-10-27 | 2012-04-18 | 中煤科工集团重庆研究院 | Airtight blast door for underground refuge chamber |
| CN203515658U (en) * | 2013-10-16 | 2014-04-02 | 陈传新 | Automatic closed remote-control fire protection device for coal mining area |
| CN107387162A (en) * | 2017-06-29 | 2017-11-24 | 山东科技大学 | A kind of tunnel hermatic door, tunnel brattice and preparation method thereof |
| CN109538278A (en) * | 2018-10-08 | 2019-03-29 | 阳泉煤业（集团）有限责任公司 | A kind of open enclosure method of underground coal mine flame range |
| CN211715159U (en) * | 2020-03-04 | 2020-10-20 | 安徽理工大学 | Novel intelligent control system for underground air door |
| CN112360540A (en) * | 2020-11-27 | 2021-02-12 | 中煤科工集团重庆研究院有限公司 | Pneumatic control system for controlling wind window of mining disaster area |
| CN215672314U (en) * | 2021-09-07 | 2022-01-28 | 中煤科工集团重庆研究院有限公司 | Mining disaster area is airtight and is opened sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215672314U (en) | Mining disaster area is airtight and is opened sealing device | |
| CN102418469B (en) | Airtight blast door for underground refuge chamber | |
| CN103266838A (en) | Threshold-free civil defense door of doorway | |
| CN201003411Y (en) | Wind gate device | |
| CN102155250B (en) | Self-reset explosion-proof door | |
| CN202249531U (en) | Protective airtight door for underground refuge chamber | |
| KR101606703B1 (en) | Blast proof door with automatic opening feature | |
| CN113586135A (en) | Mining disaster area sealing and unsealing device and using method thereof | |
| CN202358555U (en) | Mechanism for unlatching and locking case door on a garbage compressing device | |
| CN110778350A (en) | Protective closed gate valve of wall-through air duct and closing method thereof | |
| EP0357214A2 (en) | An opening and closing assembly for a sectional up and over panel | |
| CN109821931A (en) | Railway freight-car doorframe and side door integral type trimmer based on excavator technology platform | |
| CN210599087U (en) | Rescue capsule body for coal mine | |
| CN102865021B (en) | Movable hard rescue capsule emergency door | |
| CN203248025U (en) | Threshold-free civil air defense door for entrance and exit | |
| CN110481293B (en) | Escape window of automatic sliding bus | |
| CN105600246B (en) | Connecting rod scrapes the transporting compressed equipment of the formula of putting forward | |
| CN202031635U (en) | Full automatic disaster blocking device for well rail haulage road | |
| CN110206587B (en) | Emergency plugging door | |
| CN106593258A (en) | Electric control quick-opening cabin door | |
| CN110905599A (en) | Explosion venting door for safety protection of coal mine fire area | |
| WO2019212370A1 (en) | Methods of emergency opening of manholes in emergency situations, devices and systems for their embodiment and methods of assembling devices for emergency opening of movable elements installed in manholes | |
| CN202325683U (en) | Closed explosion door | |
| CN2736511Y (en) | Steel anti-knocking door | |
| CN213090478U (en) | Furnace door spring pressing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |