CN114017098A - Sand blocking device - Google Patents
Sand blocking device Download PDFInfo
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- CN114017098A CN114017098A CN202111312949.1A CN202111312949A CN114017098A CN 114017098 A CN114017098 A CN 114017098A CN 202111312949 A CN202111312949 A CN 202111312949A CN 114017098 A CN114017098 A CN 114017098A
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- anchor rod
- anchor
- wire rope
- fixed pulley
- cylinder
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- 239000004576 sand Substances 0.000 title claims abstract description 30
- 230000000903 blocking effect Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 14
- 239000003245 coal Substances 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
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- 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
-
- 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
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)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The sand blocking device provided by the embodiment of the application comprises a first cross beam fixed with a first baffle, a second cross beam fixed with a second baffle, a first penetrating pin connected with a first fixed seat at one end of the first cross beam, a second penetrating pin connected with a second fixed seat at one end of the second cross beam, a first anchor rod and a second anchor rod, wherein the first fixed seat is connected with a tunnel top plate, the second fixed seat is connected with the tunnel top plate through a third anchor rod and a fourth anchor rod, a first steel wire rope is connected with a first fixed pulley and a third fixed pulley which are fixedly arranged on the tunnel top plate in a sliding way, one end of the first steel wire rope is connected with the first cross beam, the other end of the first steel wire rope is connected with a first air cylinder, the first air cylinder is communicated with an air supply pipeline through a first air control valve, the second steel wire rope is connected with a second fixed pulley and a fourth fixed pulley which are fixedly arranged on the wall of the tunnel side wall, one end of the second steel wire rope is connected with the second cross beam, the other end of the second steel wire rope is connected with a second cylinder, and the second cylinder is communicated with an air supply pipeline through a second air control valve.
Description
Technical Field
The application relates to the field of mine safety, in particular to a sand blocking device.
Background
In order to reasonably develop and utilize coal resources, prolong the service life of a mine and improve economic benefits, coal mine workers perform supplementary exploration on the fourth system bottom boundary clay layer, and the fourth system bottom boundary clay layer and bedrock are jointly acted as a waterproof coal pillar, so that the size of the waterproof coal pillar is reasonably reduced on the basis of theory and practice. However, when the thickness of the waterproof coal pillar is insufficient, the coal mine workers improve the recovery of the mining upper limit, so that a fracture zone of a fracture development of a mined rock stratum in the advancing direction is easily communicated with the fourth system of aeolian sand, the original balance of the aeolian sand is broken, and further, the aeolian sand can flow into the underground at an accelerated speed under the action of gravity to form the collapsed sand.
Because the occurrence of sand burst can cause personnel and property damage in a short time, the time and the chance for rescuing and disaster relief are not much, and therefore, the sand blocking mode is adopted to avoid burying the laneway with sand, so that the life-saving time of miners is prolonged. However, there is currently no means of retaining sand.
Disclosure of Invention
The application provides a keep off husky device to solve the technical problem that can not keep off husky device.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
in a first aspect, the embodiment of the application discloses a sand blocking device, which comprises a first cross beam, a first baffle, a first fixed seat, a first penetrating pin, a first anchor rod, a second cross beam, a second baffle, a second fixed seat, a second penetrating pin, a third anchor rod, a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a first steel wire rope, a second steel wire rope, a first cylinder, a second cylinder, a first pneumatic control valve, a second pneumatic control valve, an air supply pipeline, a second anchor rod, a fourth anchor rod, a tunnel top plate, a tunnel wall, a fifth anchor rod, a sixth anchor rod, a seventh anchor rod and an eighth anchor rod,
a first baffle is fixedly arranged on the first cross beam, one end of the first cross beam is fixedly connected with a first fixed seat through a first penetrating pin, and the first fixed seat is fixedly connected with the roadway top plate through a first anchor rod and a second anchor rod;
a second baffle is fixedly arranged on the second cross beam, one end of the second cross beam is fixedly connected with a second fixed seat through a second penetrating pin, and the second fixed seat is fixedly connected with the roadway top plate through a third anchor rod and a fourth anchor rod;
the first fixed pulley and the second fixed pulley are fixedly arranged on a top plate of a roadway, the third fixed pulley and the fourth fixed pulley are fixedly arranged on a wall of the roadway, the first steel wire rope is connected with the first fixed pulley and the third fixed pulley in a sliding manner, one end of the first steel wire rope is connected with the first cross beam, the other end of the first steel wire rope is connected with the first air cylinder, the first air cylinder is communicated with an air supply pipeline through the first air control valve, the second steel wire rope is connected with the second fixed pulley and the fourth fixed pulley in a sliding manner, one end of the second steel wire rope is connected with the second cross beam, the other end of the second steel wire rope is connected with the second air cylinder, and the second air cylinder is communicated with the air supply pipeline through the second air control valve;
through the fifth anchor rod and the sixth anchor rod, the first air cylinder is fixedly connected with the roadway wall, and through the seventh anchor rod and the eighth anchor rod, the second air cylinder is fixedly connected with the roadway wall.
Optionally, the anti-dropping device further comprises a first anti-dropping split pin and a second anti-dropping split pin, a first through hole is formed in the lower end of the first penetrating pin, a second through hole is formed in the lower end of the second penetrating pin, the first anti-dropping split pin is connected with the first penetrating pin through the first through hole, and the second anti-dropping split pin is connected with the second penetrating pin through the second through hole.
Optionally, the central line of the first fixing seat parallel to the first cross beam is used as a symmetry line, the first anchor rod is symmetrical to the second anchor rod in position, the central line of the second fixing seat parallel to the second cross beam is used as a symmetry line, the third anchor rod is symmetrical to the fourth anchor rod in position, the central line perpendicular to the first cylinder facing the first pneumatic control valve is used as a symmetry line, the fifth anchor rod is symmetrical to the sixth anchor rod in position, the central line perpendicular to the second cylinder facing the second pneumatic control valve is used as a symmetry line, and the seventh anchor rod is symmetrical to the eighth anchor rod in position.
Optionally, the first cross beam and the second cross beam are formed by welding I-shaped steel and an iron pipe, the length of the I-shaped steel is 4.3 meters, and the diameter of the iron pipe is 30 millimeters.
Optionally, the first baffle and the second baffle are both formed by welding channel steel and iron plates, the length of the channel steel is 80 mm, the width of the channel steel is 50 mm, and the thickness of the iron plates is 2 mm.
Optionally, the lengths of the first anchor rod, the second anchor rod, the third anchor rod and the fourth anchor rod are all 1.8 meters.
The beneficial effect of this application does:
the sand blocking device provided by the embodiment of the application comprises a first cross beam fixed with a first baffle, a second cross beam fixed with a second baffle, a first cross beam one end fixedly connected with a first fixing seat through a first penetrating pin, a second cross beam one end fixedly connected with a second fixing seat through a second penetrating pin, a first fixing seat fixedly connected with a roadway top plate through a first anchor rod and a second anchor rod, a second fixing seat fixedly connected with the roadway top plate through a third anchor rod and a fourth anchor rod. First crossbeam one end and second crossbeam one end and tunnel roof fixed connection, the first crossbeam other end and the equal decline of second crossbeam other end can descend to the tunnel bottom. First wire rope with fixed first fixed pulley that sets up on the tunnel roof, the third fixed pulley slides and meets, first wire rope one end is connected with first crossbeam, the first wire rope other end is connected with first cylinder, first cylinder is linked together through first gas accuse valve and air feed pipeline, second wire rope with fixed second fixed pulley that sets up on the wall is helped to the tunnel, the fourth fixed pulley slides and meets, second wire rope one end is connected with the second crossbeam, the second wire rope other end is connected with the second cylinder, the second cylinder is linked together through second gas accuse valve and air feed pipeline. When the first pneumatic control valve is opened, the first cylinder extends out and drives the first steel wire rope to loosen, the other end of the first cross beam drives the first baffle plate to descend to the bottom of the roadway, when the second pneumatic control valve is opened, the second cylinder extends out and drives the second steel wire rope to loosen, the other end of the second cross beam drives the second baffle plate to descend to the bottom of the roadway, the first baffle plate and the second baffle plate are in tight contact, the purpose of preventing sand from burying the roadway in a sand blocking mode can be achieved, and therefore the escape time of miners is prolonged.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a sand blocking device according to an embodiment of the present disclosure;
wherein:
1-a first beam, 2-a first baffle, 3-a first fixed seat, 4-a first through pin, 5-a first anti-drop cotter pin, 6-a first anchor rod, 7-a second beam, 8-a second baffle, 9-a second fixed seat, 10-a second through pin, 11-a second anti-drop cotter pin, 12-a third anchor rod, 13-a first fixed pulley, 14-a second fixed pulley, 15-a third fixed pulley, 16-a fourth fixed pulley, 17-a first steel wire rope, 18-a second steel wire rope, 19-a first cylinder, 20-a second cylinder, 21-a first pneumatic control valve, 22-a second pneumatic control valve, 23-an air supply pipeline, 24-a second anchor rod, 25-a fourth anchor rod, 26-a roadway top plate, 27-a roadway wall, 28-fifth anchor rod, 29-sixth anchor rod, 30-seventh anchor rod and 31-eighth anchor rod.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a sand blocking device provided in the embodiment of the present application includes a first cross beam 1, a first baffle 2, a first fixing seat 3, a first through pin 4, a first anchor rod 6, a second cross beam 7, a second baffle 8, a second fixing seat 9, a second through pin 10, a third anchor rod 12, a first fixed pulley 13, a second fixed pulley 14, a third fixed pulley 15, a fourth fixed pulley 16, a first steel wire 17, a second steel wire 18, a first cylinder 19, a second cylinder 20, a first pneumatic valve 21, a second pneumatic valve 22, an air supply pipeline 23, a second anchor rod 24, a fourth anchor rod 25, a top plate 26, a roadway wall 27, a fifth anchor rod 28, a sixth anchor rod 29, a seventh anchor rod 30, and an eighth anchor rod 31, wherein the first baffle 2 is fixedly disposed on the first cross beam 1, one end of the first cross beam 1 is fixedly connected to the first fixing seat 3 through the first anchor rod 6 and the second anchor rod 24, first fixing base 3 and tunnel roof 26 fixed connection, the fixed second baffle 8 that is provided with on second crossbeam 7, through the second wear round pin 10, second crossbeam 7 one end and second fixing base 9 fixed connection, through third stock 12 and fourth stock 25, second fixing base 9 and tunnel roof 26 fixed connection. One end of the first cross beam 1 and one end of the second cross beam 7 are fixedly connected with the roadway roof 26, and the other end of the first cross beam 1 and the other end of the second cross beam 7 can be lowered to the bottom of the roadway.
As shown in fig. 1, a first fixed pulley 13 and a second fixed pulley 14 are fixedly arranged on a roadway roof 26, a third fixed pulley 15 and a fourth fixed pulley 16 are fixedly arranged on a roadway wall 27, a first steel wire rope 17 is connected with the first fixed pulley 13 and the third fixed pulley 15 in a sliding manner, one end of the first steel wire rope 17 is connected with a first cross beam 1, the other end of the first steel wire rope 17 is connected with a first air cylinder 19, the first air cylinder 19 is communicated with an air supply pipeline 23 through a first air control valve 21, a second steel wire rope 18 is connected with the second fixed pulley 14 and the fourth fixed pulley 16 in a sliding manner, one end of the second steel wire rope 18 is connected with a second cross beam 7, the other end of the second steel wire rope 18 is connected with a second air cylinder 20, the second air cylinder 20 is communicated with the air supply pipeline 23 through a second air control valve 22, the first air cylinder 19 is fixedly connected with the roadway wall 27 through a fifth anchor 28 and a sixth anchor 29, the second cylinder 20 is fixedly connected to the wall 27 by a seventh anchor 30 and an eighth anchor 31. When first air control valve 21 opened, first cylinder 19 stretched out to drive first wire rope 17 and relax, make the first crossbeam 1 other end drive first baffle 2 and descend to the tunnel bottom, when second air control valve 22 opened, second cylinder 20 stretched out, and drive second wire rope 18 and relax, make the second crossbeam 7 other end drive second baffle 8 and descend to the tunnel bottom, first baffle 2 and second baffle 8 in close contact with, can realize with the mode of keeping off the sand, avoid sand to bury the tunnel, thereby extension miner's time of fleing.
In some embodiments, the anti-dropping device further comprises a first anti-dropping split pin 5 and a second anti-dropping split pin 11, a first through hole is formed at the lower end of the first through pin 4, a second through hole is formed at the lower end of the second through pin 10, the first anti-dropping split pin 5 is connected with the first through pin 4 through the first through hole, and the second anti-dropping split pin 11 is connected with the second through pin 10 through the second through hole, so that the stability of connecting one end of the first cross beam 1 with the first fixing seat 3 can be enhanced, and the stability of connecting one end of the second cross beam 7 with the second fixing seat 9 can be enhanced.
In some embodiments, the first anchor bar 6 and the second anchor bar 24 are symmetrically positioned with respect to a center line of the first fixing base 3 parallel to the first cross member 1 as a symmetry line, so that the first fixing base 3 is uniformly stressed. And the central line of the second fixed seat 9 parallel to the second cross beam 7 is taken as a symmetrical line, and the third anchor rod 12 and the fourth anchor rod 25 are symmetrical in position, so that the second fixed seat 9 is stressed uniformly. The fifth anchor rod 28 and the sixth anchor rod 29 are symmetrically positioned by taking a median line perpendicular to the first cylinder 19 facing the first pneumatic control valve 21 as a symmetry line, so that the first cylinder 19 is uniformly stressed. The seventh anchor rod 30 and the eighth anchor rod 31 are symmetrical in position by taking a median line perpendicular to the second cylinder 20 facing the second pneumatic control valve 22 as a symmetrical line, so that the second cylinder 20 is uniformly stressed.
In some embodiments, the first beam 1 and the second beam 7 are both formed by welding i-steel and an iron pipe, the i-steel has a length of 4.3 m, the diameter of the iron pipe is 30 mm, the first baffle 2 and the second baffle 8 are both formed by welding channel steel and an iron plate, the length of the channel steel is 80 mm, the width of the channel steel is 50 mm, and the thickness of the iron plate is 2 mm. The steadiness of the first beam 1, the second beam 7, the first baffle 2 and the second baffle 8 is improved.
In some embodiments, the first anchor 6, the second anchor 24, the third anchor 12, and the fourth anchor 25 are each 1.8 meters in length. The stability of the connection of the first anchor rod 6, the second anchor rod 24, the third anchor rod 12 and the fourth anchor rod 25 with the tunnel roof 26 is improved.
The working process of the sand blocking device provided by the embodiment of the application comprises the following steps: when the first pneumatic control valve 21 is opened, the first cylinder 19 extends out and drives the first steel wire rope 17 to loosen, so that the other end of the first cross beam 1 drives the first baffle plate 2 to descend to the bottom of the roadway, when the second pneumatic control valve 22 is opened, the second cylinder 20 extends out and drives the second steel wire rope 18 to loosen, so that the other end of the second cross beam 7 drives the second baffle plate 8 to descend to the bottom of the roadway, and the first baffle plate 2 is in close contact with the second baffle plate 8. When the first pneumatic control valve 21 is closed, the first cylinder 19 retracts and drives the first steel wire rope 17 to be tensioned, the other end of the first cross beam 1 is fixed with the roadway top plate 26, and the first cross beam 1 and the first baffle 2 are reset. When the second pneumatic control valve is closed 22, the second cylinder 20 retracts and drives the second steel wire rope 18 to be tensioned, and the other end of the second cross beam 7 is fixed with the roadway top plate 26, so that the second cross beam 7 and the second baffle plate 8 are reset.
According to the embodiment, the sand blocking device provided by the embodiment of the application comprises a first cross beam fixed with a first baffle, a second cross beam fixed with a second baffle, a first penetrating pin and a first fixing seat fixed connection are arranged at one end of the first cross beam, a second penetrating pin and a second fixing seat fixed connection are arranged at one end of the second cross beam, through a first anchor rod and a second anchor rod, the first fixing seat is fixedly connected with a roadway top plate, and through a third anchor rod and a fourth anchor rod, the second fixing seat is fixedly connected with the roadway top plate. First crossbeam one end and second crossbeam one end and tunnel roof fixed connection, the first crossbeam other end and the equal decline of second crossbeam other end can descend to the tunnel bottom. First wire rope with fixed first fixed pulley that sets up on the tunnel roof, the third fixed pulley slides and meets, first wire rope one end is connected with first crossbeam, the first wire rope other end is connected with first cylinder, first cylinder is linked together through first gas accuse valve and air feed pipeline, second wire rope with fixed second fixed pulley that sets up on the wall is helped to the tunnel, the fourth fixed pulley slides and meets, second wire rope one end is connected with the second crossbeam, the second wire rope other end is connected with the second cylinder, the second cylinder is linked together through second gas accuse valve and air feed pipeline. When the first pneumatic control valve is opened, the first cylinder extends out and drives the first steel wire rope to loosen, the other end of the first cross beam drives the first baffle plate to descend to the bottom of the roadway, when the second pneumatic control valve is opened, the second cylinder extends out and drives the second steel wire rope to loosen, the other end of the second cross beam drives the second baffle plate to descend to the bottom of the roadway, the first baffle plate and the second baffle plate are in tight contact, the purpose of preventing sand from burying the roadway in a sand blocking mode can be achieved, and therefore the escape time of miners is prolonged.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article or device comprising the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (6)
1. A sand stop device, comprising: a first beam (1), a first baffle (2), a first fixed seat (3), a first through pin (4), a first anchor rod (6), a second beam (7), a second baffle (8), a second fixed seat (9), a second through pin (10), a third anchor rod (12), a first fixed pulley (13), a second fixed pulley (14), a third fixed pulley (15), a fourth fixed pulley (16), a first steel wire rope (17), a second steel wire rope (18), a first cylinder (19), a second cylinder (20), a first air control valve (21), a second air control valve (22), an air supply pipeline (23), a second anchor rod (24), a fourth anchor rod (25), a roadway roof (26), a roadway wall (27), a fifth anchor rod (28), a sixth anchor rod (29), a seventh anchor rod (30) and an eighth anchor rod (31), wherein,
the first baffle (2) is fixedly arranged on the first cross beam (1), one end of the first cross beam (1) is fixedly connected with the first fixed seat (3) through the first through pin (4), and the first fixed seat (3) is fixedly connected with the roadway roof (26) through the first anchor rod (6) and the second anchor rod (24);
the second baffle (8) is fixedly arranged on the second cross beam (7), one end of the second cross beam (7) is fixedly connected with the second fixed seat (9) through the second through pin (10), and the second fixed seat (9) is fixedly connected with the roadway roof (26) through the third anchor rod (12) and the fourth anchor rod (25);
the first fixed pulley (13) and the second fixed pulley (14) are fixedly arranged on the roadway roof (26), the third fixed pulley (15) and the fourth fixed pulley (16) are fixedly arranged on the roadway wall (27), the first steel wire rope (17) is connected with the first fixed pulley (13) and the third fixed pulley (15) in a sliding manner, one end of the first steel wire rope (17) is connected with the first cross beam (1), the other end of the first steel wire rope (17) is connected with the first air cylinder (19), the first air cylinder (19) is communicated with the air supply pipeline (23) through the first air control valve (21), the second steel wire rope (18) is connected with the second fixed pulley (14) and the fourth fixed pulley (16) in a sliding manner, and one end of the second steel wire rope (18) is connected with the second cross beam (7), the other end of the second steel wire rope (18) is connected with the second air cylinder (20), and the second air cylinder (20) is communicated with the air supply pipeline (23) through the second air control valve (22);
the first cylinder (19) is fixedly connected with the roadway wall (27) through the fifth anchor rod (28) and the sixth anchor rod (29), and the second cylinder (20) is fixedly connected with the roadway wall (27) through the seventh anchor rod (30) and the eighth anchor rod (31).
2. The sand screen according to claim 1, further comprising a first anti-drop cotter pin (5) and a second anti-drop cotter pin (11), wherein a first through hole is provided at a lower end of the first through pin (4), a second through hole is provided at a lower end of the second through pin (10), the first anti-drop cotter pin (5) is connected with the first through pin (4) through the first through hole, and the second anti-drop cotter pin (11) is connected with the second through pin (10) through the second through hole.
3. A sand screen according to claim 1, c h a r a c t e r i z e d in that the centre line of the first holder (3) parallel to the first beam (1) is taken as a line of symmetry, that the first anchor (6) is positioned symmetrically to the second anchor (24), that the centre line of the second holder (9) parallel to the second beam (7) is taken as a line of symmetry, that the third anchor (12) is positioned symmetrically to the fourth anchor (25), that the centre line perpendicular to the first cylinder (19) facing the first pneumatically controlled valve (21) is taken as a line of symmetry, that the fifth anchor (28) is positioned symmetrically to the sixth anchor (29), that the centre line perpendicular to the second cylinder (20) facing the second pneumatically controlled valve (22) is taken as a line of symmetry, and that the seventh anchor (30) is positioned symmetrically to the eighth anchor (31).
4. The sand blocking device according to claim 1, wherein the first beam (1) and the second beam (7) are both formed by welding I-steel and an iron pipe, the I-steel is 4.3 m long, and the diameter of the iron pipe is 30 mm.
5. The sand guard according to claim 1, wherein the first baffle (2) and the second baffle (8) are both formed by welding a channel steel and an iron plate, the channel steel has a length of 80 mm, the channel steel has a width of 50 mm, and the iron plate has a thickness of 2 mm.
6. A sand stop according to claim 1, characterised in that the first anchor bar (6), the second anchor bar (24), the third anchor bar (12) and the fourth anchor bar (25) are each 1.8 metres in length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312949.1A CN114017098A (en) | 2021-11-08 | 2021-11-08 | Sand blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111312949.1A CN114017098A (en) | 2021-11-08 | 2021-11-08 | Sand blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114017098A true CN114017098A (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111312949.1A Pending CN114017098A (en) | 2021-11-08 | 2021-11-08 | Sand blocking device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114017098A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485822A (en) * | 2013-09-18 | 2014-01-01 | 东北大学 | Combined quick blocking and wall retaining device |
| CN212296494U (en) * | 2020-06-18 | 2021-01-05 | 山西天地王坡煤业有限公司 | Tunnel pipeline cable suspension device |
| CN112324500A (en) * | 2020-11-20 | 2021-02-05 | 鄂托克前旗长城五号矿业有限公司 | Method for quickly constructing mine airtight wall |
| CN214170618U (en) * | 2020-11-20 | 2021-09-10 | 鄂托克前旗长城五号矿业有限公司 | Mine sealed wall constructed quickly |
| CN214577168U (en) * | 2020-12-03 | 2021-11-02 | 兖州煤业股份有限公司 | Sand blocking device |
-
2021
- 2021-11-08 CN CN202111312949.1A patent/CN114017098A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485822A (en) * | 2013-09-18 | 2014-01-01 | 东北大学 | Combined quick blocking and wall retaining device |
| CN212296494U (en) * | 2020-06-18 | 2021-01-05 | 山西天地王坡煤业有限公司 | Tunnel pipeline cable suspension device |
| CN112324500A (en) * | 2020-11-20 | 2021-02-05 | 鄂托克前旗长城五号矿业有限公司 | Method for quickly constructing mine airtight wall |
| CN214170618U (en) * | 2020-11-20 | 2021-09-10 | 鄂托克前旗长城五号矿业有限公司 | Mine sealed wall constructed quickly |
| CN214577168U (en) * | 2020-12-03 | 2021-11-02 | 兖州煤业股份有限公司 | Sand blocking device |
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