CN107976129B - Fixing device is filled to colliery open blasting big gun hole - Google Patents
Fixing device is filled to colliery open blasting big gun hole Download PDFInfo
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- CN107976129B CN107976129B CN201711313117.5A CN201711313117A CN107976129B CN 107976129 B CN107976129 B CN 107976129B CN 201711313117 A CN201711313117 A CN 201711313117A CN 107976129 B CN107976129 B CN 107976129B
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- ring
- support
- support ring
- coal mine
- stones
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- 238000005422 blasting Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 239000003245 coal Substances 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims description 11
- 239000002360 explosive Substances 0.000 claims description 9
- 238000009941 weaving Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 abstract description 67
- 238000000034 method Methods 0.000 abstract description 8
- 238000005065 mining Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract 1
- 239000003721 gunpowder Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a coal mine open blasting blasthole filling and fixing device, and relates to a device for plugging blastholes by adopting stones on site in an open mining process. On support ring side end face was arranged in to its characterized in that a pair of arc cardboard symmetry, support ring middle part position was arranged in to the slip dish, and is connected through two support arms and support ring, two support arms extend along slip dish tangential direction, and are 180 distributions, and elastic wire net is arranged in between slip dish and the support ring, elastic wire net is woven after twining into the spring by the steel wire and is formed, and on the slip dish on the support ring was arranged perpendicularly to the one end of cavity guiding axle, and for in the support ring opposite side, cavity guiding axle surface has milled a plane along the axis, it has the screw thread to open on the cavity guiding axle, and three uide bushing is arranged in on the cavity guiding axle.
Description
Technical Field
The invention discloses a coal mine open blasting blasthole filling and fixing device, relates to a device for plugging blastholes by adopting stones on site in an open mining process, and belongs to the field of coal mine facilities. In particular to a fixing device for multilayer plugging and directional diffusion of blast holes in open-pit mining by using stones on site.
Background
At present, in the process of open-pit mining coal mines, because the working face is wider, the requirement of underground operation is not high when blasting is carried out, but the blasting operation method still mainly adopts blasthole blasting, when plugging is carried out, the plugging compactness can influence the time of gas generated by gunpowder blasting in the blasthole, the longer the time is, the larger the range of surrounding rock cracks can be generated, the blasting effect can be generated, therefore, in order to save gunpowder and improve the blasting efficiency, the plugging compactness is very important, when the open-pit mining is carried out, in order to save time and reduce cost, the sand and stones in a mining area can be screened on the spot and used as plugging materials, but because the filling particles are larger, the compactness is difficult to control, and the enlarged stones are filled into the blasthole as the filling materials, the larger stones can cut off reserved leads in the blasthole and can be stuck in the middle part of the blasthole, the filling area has a large section of empty area, the directionality of impact airflow and the acting time in a blast hole during blasting are influenced, the blasting effect is reduced, and large stones fly out along the blast hole after being impacted, so that operators and equipment are damaged, and safety accidents are caused;
publication No. CN107345783A discloses an auxiliary mesh screen structure for blast hole filling in open blasting construction, which comprises an outer ring, wherein a first bracket, a second bracket and a third bracket are horizontally and fixedly connected to the outer ring; an inner net is fixed on the inner ring of the outer ring; according to the invention, large stones are isolated by the mesh screen, smaller stones fall into the mesh screen for filling, and independent stones are used for filling, so that clamping stagnation is easy to occur among the stones, gaps are formed during plugging, the blasting effect is influenced, and the stones can splash everywhere at the blasting moment, but safety hidden troubles are avoided.
Disclosure of Invention
In order to improve the situation, the invention provides a fixing device for filling and fixing a coal mine open blasting blasthole, which is used for carrying out multilayer plugging and directional diffusion on blastholes in open mining by taking stones on site.
The invention discloses a coal mine open blasting blasthole filling and fixing device, which is realized by the following steps: the invention relates to a coal mine open blasting blasthole filling and fixing device which comprises support rings, arc-shaped clamp plates, an elastic steel wire mesh, a connecting plate, a connecting ring, guide sleeves, support arms, elastic baffles, a fastening screw sleeve, a fixing ring, a hollow guide shaft and a sliding disc, wherein a pair of arc-shaped clamp plates are symmetrically arranged on the end surface of one side of each support ring, the sliding disc is arranged in the middle of each support ring and is connected with the support rings through the two support arms, the two support arms extend along the tangential direction of the sliding discs and are distributed at 180 degrees, the elastic steel wire mesh is arranged between the sliding discs and the support rings, the elastic steel wire mesh is woven by winding steel wires into springs, one end of the hollow guide shaft is vertically arranged on the sliding disc on the support rings and is arranged on the other side of the support rings, the outer surface of the hollow guide shaft is milled with a plane along the axial line, the section inner ring of the guide sleeve is the same as the section outer ring of the hollow guide shaft, the three sliding discs are correspondingly arranged on the guide sleeve, the connecting ring is arranged on the sliding disc through the two supporting arms and is adjacent to the supporting ring, the diameter of the connecting ring is larger than that of the supporting ring, the two supporting arms on the connecting ring are mutually vertical to the two supporting arms on the supporting ring, the elastic steel wire mesh is arranged on the inner ring of the connecting ring, one ends of a pair of connecting plates are symmetrically arranged on the connecting ring, the other ends of the pair of connecting plates are arranged on the supporting ring, the connecting plates and the arc-shaped clamping plate deflect 90 degrees, the two fixing rings are correspondingly arranged on the other two sliding discs through the supporting arms, one ends of the other pair of connecting plates are correspondingly arranged on the connecting ring, the other ends of the other pair, two are fixed and are connected through a pair of elastic baffle correspondently between the ring, the support arm mutually perpendicular on two adjacent solid fixed rings, solid fixed ring inner wall is arranged in to the elastic steel wire net, and the fastening swivel nut is arranged in on the cavity guiding axle other end.
When the device is used, the lead wires penetrate out of the hollow guide shaft, the support ring extends into the blasthole, the support ring moves gradually into the blasthole, sand and stones are placed between the support ring and the connecting ring simultaneously, stones are filled in the blasthole, the filled stones also enter along with the pushing of the connecting ring, the connecting ring is turned for 180 degrees, the stones are turned over, gaps among the stones are extruded and stacked, the stones are continuously added, so that the stones are filled between the support ring and the connecting ring, after the connecting ring enters the blasthole, the stones are wrapped by the elastic steel wire meshes on the connecting ring, the stones move inwards along the blasthole, the stones are added while moving, then the stones are added between the connecting ring and the fixing ring, then the stones are turned for 180 degrees, the stones are continuously moved and added, the inner stones are ejected and compacted after the fixing ring enters the blasthole, the hollow guide shaft is pushed inwards, make arc cardboard and gunpowder contact on the support ring, then it is rotatory through fastening swivel nut, promote the uide bushing and slide along the cavity guiding axle, make the clearance between adjacent elastic wire net diminish, extrude the stone, make and be crowded to become compact between the stone, then in extrusion process, connect to the support ring and advance, fixed ring is close to the go-between, make two sets of go-between outwards expand, form closely compaction with the borehole inner wall, make support ring, go-between and solid fixed ring card at the borehole wall, form fixedly, then pack thinner sand and soil into the borehole through the elastic wire net on the outermost solid fixed ring, fill the clearance between the stone, make the borehole closely shutoff, when lighting a fire and detonating, the blast stream that gunpowder explosion produced forms the impact to the support ring, make the support ring promote the cavity guiding axle to move, lead to the support ring, The distance between the connecting ring and the fixing ring is further reduced, the connecting plate is further expanded to form support and fix, meanwhile, due to the restriction of the elastic steel wire mesh on the stone, the stone under blasting impact is diffused along the radial direction along the gap between the connecting plates, the stone between the fixing rings is diffused along the radial direction from the gap between the elastic baffles, the blasting range is increased, and the blast hole wall direction is impacted and damaged,
the arc-shaped clamping plate can connect and fix the explosive, connect the support ring with the filled explosive and ensure the orientation of the explosive during explosion;
the two supporting arms extend along the tangential direction of the sliding disc and are distributed in an angle of 180 degrees, the sliding disc can be fixed in a balanced manner, the two supporting arms are mutually vertical to other groups of supporting arms, and an integral pocket cage is formed for the stone block, so that the stone block is prevented from flying out along a blast hole and causing safety accidents;
the outer surface of the hollow guide shaft is milled with a plane along the axis and can be matched with the guide sleeve to form a matching relation of relative sliding, so that when the fastening screw sleeve works, the sliding discs are pushed to be close to each other, the stone is extruded and compacted, and the phenomenon that the filling position has overlarge gap to influence the blasting effect is avoided;
the diameter of the connecting ring is larger than that of the supporting ring, so that a circular truncated cone structure can be integrally formed, the circular truncated cone structure can smoothly move when entering a blasthole, and the supporting ring, the connecting ring and the inner wall of the blasthole are prevented from being clamped in the moving process;
the elastic steel wire mesh is formed by weaving a spring formed by winding steel wires, can be used for bagging stones, relieves impact force in the direction during blasting, limits the moving direction of the stones, enables the stones to be radially diffused along the blast hole, impacts the inner wall of the blast hole and expands the blasting range;
the aim of filling and fixing the sand is achieved by open blasting.
Has the beneficial effects.
The structure is simple, and the device is convenient and practical.
Secondly, can carry out the monolithic stationary to shutoff stone when blasting in the open.
Thirdly, the stone can be prevented from flying along the blasthole, so that the stone can be diffused along the radial direction of the blasthole, and the blasting range is enlarged.
And fourthly, the compactness of the stone block during filling can be improved.
Drawings
Fig. 1 is a three-dimensional structure diagram of a coal mine open blasting blasthole filling and fixing device.
In the attached drawings
Wherein the parts are: support ring (1), arc cardboard (2), elastic steel silk net (3), connecting plate (4), go-between (5), uide bushing (6), support arm (7), elastic baffle (8), fastening swivel nut (9), solid fixed ring (10), cavity guiding axle (11), slip dish (12).
The specific implementation mode is as follows:
the invention discloses a coal mine open blasting blasthole filling and fixing device which is realized by the following steps that when the device is used, a lead penetrates out of a hollow guide shaft (11), a support ring (1) extends into a blasthole, then the support ring gradually moves towards the blasthole, sand and stones are placed between the support ring (1) and a connecting ring (5) at the same time to be filled in the blasthole, the filled stones also enter along with the pushing of the connecting ring (5), the connecting ring (5) is overturned for 180 degrees, the stones are overturned, gaps among the stones are extruded and stacked, the stones are continuously added to enable the stones to be filled between the support ring (1) and the connecting ring (5), after the connecting ring (5) enters the blasthole, an elastic steel wire mesh (3) on the connecting ring (5) is used for gathering the stones, the stones move inwards along the blasthole, the stones are added while moving, and then the stones are added between the connecting ring (5) and a fixing ring (10), then the shot hole is turned over by 180 degrees, the stone is continuously moved and added until the fixing ring (10) enters the shot hole, the inner stone is popped out and compacted, the hollow guide shaft (11) is pushed inwards, the arc-shaped clamping plate (2) on the support ring (1) is contacted with gunpowder, then the fixing screw sleeve (9) rotates to push the guide sleeve (6) to slide along the hollow guide shaft (11), so that the gap between the adjacent elastic steel wire meshes (3) is formed, the stone is extruded, the stones are extruded to be compacted, then in the extrusion process, the connecting ring (5) leans in towards the support ring, the fixing ring (10) approaches towards the connecting ring (5), the two groups of connecting rings (5) are expanded outwards to form compact compaction with the inner wall of the shot hole, so that the support ring (1), the connecting ring (5) and the fixing ring (10) are clamped on the wall of the shot hole to form fixation, and then the shot hole is filled with thinner sandy soil through the elastic steel wire meshes (3) on the outermost fixing ring (, filling gaps among the stone blocks, so that a blasthole is tightly plugged, when ignition is ignited, impact airflow generated by gunpowder explosion impacts the support ring (1), the support ring (1) pushes the hollow guide shaft (11) to move, so that the distance among the support ring (1), the connecting ring (5) and the fixing ring (10) is further reduced, the connecting plate (4) is further expanded to form support fixation, and meanwhile, due to the limitation of the elastic steel wire mesh (3) on the stone blocks, the stone blocks under blasting impact diffuse along the radial direction along the gaps among the connecting plates (4), the stone blocks among the fixing ring (10) diffuse along the radial direction from the gaps among the elastic baffles (8), the blasting range is increased, and the blasthole is damaged by impact;
the arc-shaped clamping plate (2) can connect and fix the explosive, and connects the support ring (1) with the filled explosive to ensure the orientation of the explosive during explosion;
the two supporting arms (7) extend along the tangential direction of the sliding disc (12) and are distributed in an angle of 180 degrees, the sliding disc (12) can be fixed in a balanced manner, the supporting arms are mutually vertical to other groups of supporting arms (7), and an integral pocket cage is formed for the stone block, so that the stone block is prevented from flying out along a blast hole and causing safety accidents;
the outer surface of the hollow guide shaft (11) is milled with a plane along the axis and can be matched with the guide sleeve (6) to form a relative sliding matching relation, so that when the fastening screw sleeve (9) works, the sliding discs (12) are pushed to be close to each other to extrude and compact stones, and the phenomenon that the blasting effect is influenced due to the fact that gaps at the filling position are too large is avoided;
the diameter of the connecting ring (5) is larger than that of the support ring (1), so that a circular truncated cone structure can be integrally formed, the circular truncated cone structure can smoothly move in a blasthole, and the support ring (1), the connecting ring (5) and the inner wall of the blasthole are prevented from being clamped in the moving process;
the elastic steel wire mesh (3) is formed by weaving a steel wire wound into a spring, can pocket stones, relieves impact force in the direction during blasting, limits the moving direction of the stones, enables the stones to be diffused along the radial direction of the blasthole, impacts the inner wall of the blasthole and expands the blasting range;
the aim of filling and fixing the sand is achieved by open blasting.
Claims (7)
1. The utility model provides a fixing device is filled to colliery open blasting big gun hole, characterized by: a pair of arc-shaped clamping plates are symmetrically arranged on one side end face of the support ring, the sliding disc is arranged in the middle of the support ring and is connected with the support ring through two support arms, an elastic steel wire mesh is arranged between the sliding disc and the support ring, one end of a hollow guide shaft is vertically arranged on the sliding disc on the support ring and is positioned on the other side of the support ring, threads are arranged on the hollow guide shaft, three guide sleeve sleeves are arranged on the hollow guide shaft, the inner circle of the section of each guide sleeve is the same as the outer circle of the section of the hollow guide shaft, the three sliding discs are correspondingly arranged on the guide sleeves, the connecting ring is arranged on the sliding disc through the two support arms and is adjacent to the support ring, the two support arms on the connecting ring are mutually vertical to the two support arms on the support ring, the elastic steel wire mesh, two solid fixed rings correspond and arrange in other two sliding tray through the support arm on, another one end to the connecting plate corresponds and arranges in on the go-between, the other end corresponds and arranges in on the adjacent solid fixed ring, and with deflect 90 between a pair of connecting plate, two support arms on the adjacent solid fixed ring are mutually perpendicular with the support arm on the go-between, correspond through a pair of elastic baffle between two solid fixed rings and connect, support arm mutually perpendicular on two adjacent solid fixed rings, solid fixed ring inner wall is arranged in to the elastic wire net, the fastening swivel nut is arranged in on the cavity guiding axle other end.
2. The coal mine open blasting blasthole filling fixture as recited in claim 1, wherein said two support arms extend along a tangent of said sliding plate and are disposed at 180 °.
3. The coal mine open blasting blasthole filling and fixing device as recited in claim 1, wherein the elastic steel wire mesh is formed by winding steel wires into springs and then weaving the steel wires.
4. The coal mine open blasting blasthole filling fixture as recited in claim 1, wherein the outer surface of said hollow guide shaft is axially milled with a flat surface.
5. The coal mine open blasting blasthole filling and fixing device as recited in claim 1, wherein the arc-shaped clamping plates can be used for fixedly connecting the explosives, connecting the support rings with the filled explosives, and ensuring the orientation of the explosives during blasting.
6. The coal mine open blasting blasthole filling fixture as recited in claim 1, wherein the diameter of said attachment ring is greater than the diameter of said support ring.
7. The coal mine open blasting blasthole filling fixture as recited in claim 1, wherein the diameter of said retainer ring is greater than the diameter of said attachment ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313117.5A CN107976129B (en) | 2017-12-09 | 2017-12-09 | Fixing device is filled to colliery open blasting big gun hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313117.5A CN107976129B (en) | 2017-12-09 | 2017-12-09 | Fixing device is filled to colliery open blasting big gun hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107976129A CN107976129A (en) | 2018-05-01 |
| CN107976129B true CN107976129B (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711313117.5A Active CN107976129B (en) | 2017-12-09 | 2017-12-09 | Fixing device is filled to colliery open blasting big gun hole |
Country Status (1)
| Country | Link |
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| CN (1) | CN107976129B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537679B (en) * | 2024-01-04 | 2024-05-10 | 福建省新华都工程有限责任公司 | Annular pushing device for discharging rock debris outside drilling operation orifice of strip mine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004088239A1 (en) * | 2003-04-03 | 2004-10-14 | Stoeckl Robert John | Explosion container |
| CN205482644U (en) * | 2016-04-12 | 2016-08-17 | 贵州新联爆破工程集团有限公司 | Porthole shutoff pole of multistage shutoff |
| CN107246830A (en) * | 2017-07-28 | 2017-10-13 | 安徽理工大学 | A kind of convenient multiple-row blasting device |
| CN206573022U (en) * | 2017-03-13 | 2017-10-20 | 重庆三峡学院 | A kind of blasting engineering hole sealing device |
-
2017
- 2017-12-09 CN CN201711313117.5A patent/CN107976129B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004088239A1 (en) * | 2003-04-03 | 2004-10-14 | Stoeckl Robert John | Explosion container |
| CN205482644U (en) * | 2016-04-12 | 2016-08-17 | 贵州新联爆破工程集团有限公司 | Porthole shutoff pole of multistage shutoff |
| CN206573022U (en) * | 2017-03-13 | 2017-10-20 | 重庆三峡学院 | A kind of blasting engineering hole sealing device |
| CN107246830A (en) * | 2017-07-28 | 2017-10-13 | 安徽理工大学 | A kind of convenient multiple-row blasting device |
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| Publication number | Publication date |
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| CN107976129A (en) | 2018-05-01 |
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Effective date of registration: 20191225 Address after: No.44, Haihe North Road, Haibowan District, Wuhai City, Inner Mongolia Autonomous Region Applicant after: Inner Mongolia Wuhai Wanyuan Open Coal Industry Co., Ltd Address before: 221000 Jiangsu city of Xuzhou province mining software technology park Quanshanqu with innovation F Applicant before: He Hongbin |
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