CN115574676A - Coal mine roof cutting and roadway retaining energy gathering device - Google Patents
Coal mine roof cutting and roadway retaining energy gathering device Download PDFInfo
- Publication number
- CN115574676A CN115574676A CN202211408530.0A CN202211408530A CN115574676A CN 115574676 A CN115574676 A CN 115574676A CN 202211408530 A CN202211408530 A CN 202211408530A CN 115574676 A CN115574676 A CN 115574676A
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- energy gathering
- pipe
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- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000005520 cutting process Methods 0.000 title claims abstract description 25
- 238000005422 blasting Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 239000002360 explosive Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 19
- 230000000903 blocking effect Effects 0.000 description 17
- 238000009825 accumulation Methods 0.000 description 10
- 238000004880 explosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a coal mine roof cutting and roadway retaining energy gathering device, which comprises an energy gathering pipe and an energy gathering cover, wherein the energy gathering cover is arranged at the end part of the energy gathering pipe; the connecting piece is used for connecting the two adjacent energy-collecting pipes, and after the two adjacent energy-collecting pipes are connected through the connecting piece, the two adjacent energy-collecting pipes can rotate relatively; location fixed knot constructs, be located the outside of gathering can the pipe, gather can the pipe when filling in the big gun hole, under location fixed knot constructs the effect, location fixed knot constructs and big gun hole contact, prevent to gather can the outside roll-off of pipe, under the effect of connecting piece and location fixed knot constructs, can be with the explosive in the big gun hole outside, gather can the cover, connecting piece and location fixed knot construct the equipment, then fill in the big gun hole in proper order, only need alone at this moment just can with gather can the light big gun hole of filling in of pipe in, not only can improve work efficiency, simultaneously, can reduce the detonating cord, the use of detonator, and the production cost is reduced.
Description
Technical Field
The invention relates to the field of energy-gathering blasting, in particular to a coal mine roof-cutting roadway-retaining energy-gathering device.
Background
The in-process of colliery cut-top entry retaining, need make a plurality of big gun holes up in the colliery passageway, then plug in the explosive in the big gun hole, at this moment, because the big gun hole is up, consequently, the in-process of filling in the energy-gathering pipe (having the explosive), need someone to lift the energy-gathering pipe in the big gun hole exit position, avoid energy-gathering pipe to drop out, it is the same like this, just need two at least people to operate, lift the energy-gathering pipe in the big gun hole alone, load the energy-gathering pipe with the explosive in the passageway alone, lead to work efficiency low.
Meanwhile, in the prior art of coal mine roof cutting and roadway retaining energy gathering pre-splitting, the explosive filling of the energy gathering pipes is performed by using a glue gun, at the moment, when the energy gathering pipes are subjected to interval explosive filling, the energy gathering pipes are generally subjected to booster explosion by using a conventional detonating cord, when no detonating cord exists, single-hole multiple detonators are complex in wiring, when blast holes are plugged, electric wires are easily damaged to cause blind shots, and the adoption of the detonating cord and the detonators has high cost and low working efficiency.
Disclosure of Invention
In view of the above, it is necessary to provide a coal mine roof cutting and roadway retaining energy gathering device.
A coal mine roof cutting and roadway retaining energy gathering device is characterized by comprising an energy gathering pipe,
the energy-gathering cover is arranged at the end part of the energy-gathering pipe;
the connecting piece is used for connecting the two adjacent energy-collecting pipes, and after the two adjacent energy-collecting pipes are connected through the connecting piece, the two adjacent energy-collecting pipes can rotate relatively;
the positioning and fixing structure is located on the outer side of the energy-gathering pipe, and when the energy-gathering pipe is plugged into the blast hole, the positioning and fixing structure is in contact with the blast hole under the action of the positioning and fixing structure, so that the energy-gathering pipe is prevented from sliding outwards.
In one embodiment, the connecting piece comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are respectively fixed at the end positions of two adjacent energy collecting pipes, the first connecting piece and the second connecting piece are connected through a connecting shaft, and the first connecting piece and the second connecting piece can rotate relatively.
In one embodiment, the connecting shaft is arranged at the end of the first connecting piece, the second connecting piece is provided with a long groove, and the connecting shaft is clamped into the long groove, so that the first connecting piece and the second connecting piece are connected.
In one embodiment, the first connecting piece and the second connecting piece are provided with rotating gaps at the side edge positions, and the first connecting piece and the second connecting piece are provided with energy-gathering groove structures.
In one embodiment, the energy gathering cover is a metal hollow cone, a conical groove is formed in one end of the energy gathering cover, the opening direction of the conical groove of the energy gathering cover faces the blasting direction, an energy gathering sleeve is arranged on the outer side of the energy gathering cover, and the energy gathering cover is connected with the energy gathering pipe through the energy gathering sleeve.
In one embodiment, the energy gathering sleeve comprises an energy gathering outer sleeve, the energy gathering outer sleeve is annular, one end of the energy gathering outer sleeve is provided with a limiting part, the energy gathering cover is abutted against the energy gathering outer sleeve at the position of the limiting part, and the side wall of the energy gathering outer sleeve is provided with a notch.
In one embodiment, the positioning and fixing structure is a one-way fixing structure, after the energy-gathering tube is provided with the positioning and fixing structure, the energy-gathering tube can move towards the deep part of the blast hole, and under the action of the positioning and fixing structure, the energy-gathering tube is limited to move towards the outer side of the blast hole.
In one embodiment, the positioning and fixing structure comprises a fixing part and a positioning part, the positioning part is U-shaped, the bottom of the positioning part is provided with an arc shape, the fixing part is located at two ends of the upper side of the positioning part, and the positioning and fixing structure is connected with the energy collecting pipe through the fixing part.
In one embodiment, the blast hole plugging device further comprises a blast hole plugging structure, the blast hole plugging structure comprises a plurality of plugging cylinders, stemming is arranged in the plugging cylinders, the periphery of each plugging cylinder is provided with a reversible plugging part,
in one embodiment, the length of the blocking barrel is 10cm-30cm, and a plurality of the blocking barrels are sequentially sleeved together and are plugged into the blast hole once or for multiple times.
According to the coal mine roof-cutting roadway-retaining energy gathering device, the energy gathering cover is adopted, spaced charging can be achieved, relay explosion transfer can be achieved for subsequent explosives under the action of the energy gathering cover in the blasting process, and each explosive is not required to be connected with a detonating cord or a detonator, so that the blasting cost is saved, and the working efficiency is improved.
Connect through the connecting piece between the adjacent energy-gathering pipe, at this moment, under the effect of connecting piece, link together two energy-gathering pipes, owing to under the effect of connecting piece, can take place relative rotation between two adjacent energy-gathering pipes this moment, consequently filling in the in-process of big gun hole with energy-gathering pipe, can link together energy-gathering pipe in the big gun hole outside, then send into the big gun hole again, only need alone just can accomplish the operation process.
Set up location fixed knot in the outside of gathering can the pipe and construct, when gathering can the pipe towards the big gun hole outside, location fixed knot constructs and big gun hole inner wall butt to the restriction is gathered can the pipe and is removed towards the big gun hole outside, simplifies and gathers the process that can the pipe pack into the big gun hole, only needs just can accomplish alone and gathers the process that can the pipe pack into the big gun hole.
Drawings
FIG. 1 is a schematic diagram of a blasting installation structure of a coal mine roof cutting roadway retaining energy gathering device;
FIG. 2 is an enlarged view of the point A in FIG. 1;
FIG. 3 is a schematic view of a connecting piece structure of the coal mine roof cutting roadway retaining energy gathering device;
FIG. 4 is a schematic structural view of a positioning and fixing device of the coal mine roof cutting and roadway retaining energy gathering device;
FIG. 5 is a schematic diagram of a structure of a blocking cylinder of the coal mine roof cutting and roadway retaining energy gathering device;
FIG. 6 is a schematic view of the energy-gathering jacket structure of the coal mine roof-cutting roadway-retaining energy-gathering device of the present invention;
wherein, 1, energy-gathering pipe; 2. an energy-gathering cover; 22. energy gathering sleeve; 221. an energy-gathering jacket; 223. slotting; 3. a connecting member; 31. a first connecting member; 32. a second connecting member; 33. a connecting shaft; 34. a long groove; 35. a rotation gap; 4. positioning and fixing structures; 41. a fixed part; 42. a positioning part; 5. a blast hole plugging structure; 51. blocking the barrel; 52. stemming; 53. a sealing part.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A coal mine roof cutting and roadway retaining energy gathering device is characterized by comprising an energy gathering pipe 1,
the energy-gathering cover 2 is arranged at the end position of the energy-gathering pipe 1;
the connecting piece 3 is used for connecting the two adjacent energy-collecting pipes 1, and after the two adjacent energy-collecting pipes 1 are connected through the connecting piece 3, the two adjacent energy-collecting pipes 1 can rotate relatively;
the location fixed knot constructs 4, is located the outside of gathering can 1, when gathering can 1 fills in the big gun hole, under the effect of location fixed knot constructs 4, location fixed knot constructs 4 and big gun hole contact, prevents that gather can 1 outwards roll-off.
The energy-gathering cover 2 is adopted, so that spaced charging can be realized, in the blasting process, relay explosion transfer can be realized through the action of the energy-gathering cover 2 for subsequent explosives under the action of the energy-gathering cover 2, and each explosive is not required to be connected with a detonating cord or a detonator, so that the blasting cost is saved.
Connect through connecting piece 3 between adjacent energy-accumulating pipe 1, at this moment, under the effect of connecting piece 3, link together two energy-accumulating pipe 1, owing to under the effect of connecting piece 3, can take place relative rotation between two adjacent energy-accumulating pipe 1 this moment, consequently filling in the in-process of big gun hole with energy-accumulating pipe 1, can link together energy-accumulating pipe 1 in the big gun hole outside, then send into the big gun hole again, only need one person just can accomplish operation process.
Set up location fixed knot in the outside of gathering can 1 and construct 4, when gathering can 1 towards the big gun hole outside, location fixed knot constructs 4 and big gun hole inner wall butt to the restriction is gathered can 1 and is removed towards the big gun hole outside, simplifies and gathers can 1 process of packing into the big gun hole of pipe, only needs just can accomplish alone and gathers can 1 process of packing into the big gun hole of pipe.
The connecting piece 3 is used for connecting two energy-gathering pipes 1 together, and after the two connecting pieces 3 are connected together, in order to facilitate plugging in a blast hole, the two energy-gathering pipes 1 need to rotate by a certain angle at a connecting position so as to ensure that when a previous energy-gathering pipe 1 is plugged in the blast hole, an angle is formed between the next energy-gathering pipe 1 outside the blast hole and the energy-gathering pipe 1 inside the blast hole, so that subsequent energy-gathering pipes 1 are convenient to install. At this moment, can link together in proper order through connecting piece 3 with all energy-accumulating pipes 1 that need fill in earlier (filling the explosive and gathering can 2), also can fill in the big gun hole edge with energy-accumulating pipe 1 and connect subsequent energy-accumulating pipe 1, because connect through connecting piece 3 that can rotate between the energy-accumulating pipe 1, consequently, at the in-process of filling in the big gun hole, do not need extra arrangement people to block energy-accumulating pipe 1 in the position below the big gun hole, at the in-process of operation, only need one person just can send into the big gun hole with the energy-accumulating pipe 1 who connects.
Specifically, in order to rotatably connect the energy collecting pipes 1 at the positions of the first connecting piece 31 and the second connecting piece 32, in the present embodiment, the connecting shaft 33 is disposed at the end of the first connecting piece 31, the second connecting piece 32 is provided with the elongated groove 34, and the connecting shaft 33 is snapped into the elongated groove 34, so that the first connecting piece 31 and the second connecting piece 32 are connected. Under the effect of first connecting piece 31 and second connecting piece 32, relative rotation can take place for two energy gathering pipes 1, simultaneously, when promoting downside energy gathering pipe 1, under the effect of first connecting piece 31 and second connecting piece 32, can promote the energy gathering pipe 1 (the energy gathering pipe 1 of the inboard position in big gun hole) of upside position, can be more convenient fill in the big gun hole with energy gathering pipe 1.
In order to enable a certain angle of rotation between the first connecting piece 31 and the second connecting piece 32, in this embodiment, the first connecting piece 31 and the second connecting piece 32 are provided with a rotation gap 35 at a side position, and the first connecting piece 31 and the second connecting piece 32 are provided with energy collecting groove structures. Because the first connecting piece 31 and the second connecting piece 32 are rotatably connected through the connecting shaft 33, and the sizes of the connecting parts of the first connecting piece 31 and the second connecting piece 32 are different and belong to sleeving (the first connecting piece 31 is sleeved in the second connecting piece 32 or the second connecting piece 32 is sleeved in the first connecting piece 31), in order to enable two energy-collecting pipes 1 to smoothly rotate at the positions of the first connecting piece 31 and the second connecting piece 32, the first connecting piece 31 and the second connecting piece 32 are provided with a rotating gap at the side position, specifically, in the embodiment, the connecting shaft 33 is arranged at the middle position of the end part of the first connecting piece 31, the rotating gap is arranged at two sides of the connecting shaft 33, the rotating gap is a gap at two sides of the connecting shaft 33 at the end part of the first connecting piece 31, the middle position of the end part of the second connecting piece 32 is provided with a long strip groove 34, gaps are arranged at two sides of the long strip groove 34, so that the rotating gap is formed, so that when the first connecting piece 31 and the second connecting piece 32 are sleeved together, a part of the rotating gap is partially repeated, therefore, the rotating gap is formed at the side edge of the end part of the first connecting piece 31 and the second connecting piece 32, so that the rotating gap between two adjacent energy-collecting pipes 1 is increased, and the rotating angle between the two adjacent energy-collecting pipes is increased.
Certainly, because first connecting piece 31 and second connecting piece 32 belong to and cup joint at the junction, for the cup joint of first connecting piece 31 and second connecting piece 32 of more convenience, reduce gradually at first connecting piece 31 tip size, second connecting piece 32 tip size increases gradually, and first connecting piece 31 tip is the platykurtic, second connecting piece 32 tip is the horn mouth shape, first connecting piece 31 and second connecting piece 32 have partial repetition in hookup location like this, make first connecting piece 31 and second connecting piece 32 can be better cup joint together, simultaneously, also can not influence the rotation that takes place between second connecting piece 32 and the second connecting piece 32.
After the connecting piece 3 is sleeved at the end of the energy-gathered tube 1, in order not to affect the blasting effect of the energy-gathered tube 1, in this embodiment, the inner wall of the connecting piece 3 is provided with an energy-gathered structure, that is, a triangular protrusion, so as to increase the energy-gathered cutting effect of blasting.
Connect after connecting through connecting piece 3 between two adjacent energy accumulation pipes 1, and can rotate certain angle between two energy accumulation pipes 1, at the in-process of filling in the big gun hole with energy accumulation pipe 1, because the big gun hole is up, consequently, energy accumulation pipe 1 in the big gun hole is vertical direction, under the effect of connecting piece 3, energy accumulation pipe 1 in the big gun hole outside then must not be in vertical direction, energy accumulation pipe 1 in the big gun hole outside can be in the tilt state, thereby convenient operation, do not need extra adoption manual mode to come outside energy accumulation pipe 1 fixed, after looping through connecting piece 3 with a plurality of energy accumulation pipes 1 and connecting, can fill in the big gun hole with energy accumulation pipe 1 one by one, just can accomplish the work of filling in the big gun hole with energy accumulation pipe 1 (filled with the explosive), the cost of labor has not only been practiced thrift, and simultaneously, also can reduce required time, and improve work efficiency.
After the energy-gathering cover 2 is adopted, in order to realize relay explosion propagation through the energy-gathering cover 2, in this embodiment, the energy-gathering cover 2 is a metal hollow cone, a conical groove is formed in one end of the energy-gathering cover 2, the opening direction of the conical groove of the energy-gathering cover 2 faces the blasting direction, an energy-gathering sleeve 22 is arranged on the outer side of the energy-gathering cover 2, and the energy-gathering cover 2 is connected with the energy-gathering pipe 1 through the energy-gathering sleeve 22.
Because the connecting piece 3 is arranged at the end part of the energy collecting pipe 1, the installation of the connecting piece 3 cannot be influenced after the energy collecting cover 2 is arranged, in the embodiment, the energy collecting sleeve 22 comprises an energy collecting outer sleeve 221, the energy collecting outer sleeve 221 is annular, one end of the energy collecting outer sleeve is provided with a limiting part, the energy collecting cover 2 is abutted against the energy collecting outer sleeve 221 at the position of the limiting part, and the side wall of the energy collecting outer sleeve 221 is provided with a notch 223. The energy gathering cover 2 is arranged on the inner side or the outer side of the energy gathering pipe 1 through the energy gathering sleeve 22, the connecting piece 3 can be arranged on the outer side of the energy gathering pipe or the outer side of the energy gathering sleeve, the side wall of the energy gathering outer sleeve is provided with the groove 223, the groove can be in a V shape, and after the groove is formed, the energy gathering sleeve 22 and the energy gathering pipe 1 can be conveniently sleeved and fixed.
Location fixed knot constructs 4 is used for filling in the big gun hole gather can 1 fixedly in the pipe, avoids gathering can 1 roll-off big gun hole of pipe, also can not influence simultaneously and gathers can 1 process of filling in the big gun hole of pipe, consequently, in this embodiment, location fixed knot constructs 4 and is one-way fixed knot structure, gather can 1 and set up location fixed knot structure 4 backs, gather can 1 and can move towards big gun hole depths of pipe, under location fixed knot constructs 4's effect, the restriction gathers can 1 moves towards the big gun hole outside of pipe.
Specifically, location fixed knot constructs 4 and includes fixed part 41 and location portion 42, location portion 42 is the U-shaped, and the bottom of location portion 42 is equipped with the arc, fixed part 41 is located location portion 42 upside both ends position, location fixed knot constructs 4 and is connected with energy collecting pipe 1 through fixed part 41. The positioning and fixing structure 4 can be integrally formed by bending a metal wire (in order to avoid spark contact with a coal mine, an insulating layer is arranged on the surface of the metal wire) or by plastic injection molding, the positioning and fixing structure 4 has certain elasticity, a positioning hole is arranged on the side wall of the energy-gathering pipe 1 at the moment, the fixing part 41 of the positioning and fixing structure 4 is clamped into the positioning hole, so that the positioning and fixing structure 4 is fixed with the energy-gathering pipe 1, the positioning part 42 is attached to the outer side wall of the energy-gathering pipe 1 at the moment, the positioning and fixing structure 4 is symmetrically or asymmetrically arranged on the outer side of the energy-gathering pipe 1, the positioning part 42 is positioned at the lower side position of the fixing part 41 at the moment, in the process of plugging the energy-gathering pipe 1 into a blast hole, the positioning and fixing structure 4 is tightly attached to the outer wall of the energy-gathering pipe 1, therefore, the process of plugging the energy-gathering pipe 1 into the blast hole cannot be influenced by the positioning and fixing structure 4 has an outward movement action when the energy-gathering pipe 1 has an outward movement action, the positioning part 42 contacts with the inner wall of the blast hole, so that the positioning part 42 rotates outwards for a certain angle around the position of the fixing part 41, thereby clamping the energy-gathering tube 1 at the inner side of the blast hole, and avoiding the energy-gathering tube 1 from sliding towards the outer side, at the moment, when the energy-gathering tube 1 slides towards the outer side, in order to better unfold the positioning part 42, a certain angle can be formed between the initial state positioning part 42 and the outer side of the energy-gathering tube 1, when the energy-gathering tube 1 moves towards the outer side, the positioning part 42 of the positioning fixing part 41 can be quickly abutted against the inner wall of the blast hole, thereby preventing the energy-gathering tube 1 from moving towards the outer side of the blast hole, for the angle formed between the initial state positioning part 42 and the outer side wall of the energy-gathering tube 1, other articles can be padded between the positioning part 42 and the energy-gathering tube 1, and the arc at the bottom of the positioning part 42 can also be abutted against the outer wall of the energy-gathering tube 1, so that a certain distance is formed between two side edges of the positioning part 42 and the outer wall of the energy-gathering pipe 1.
And finally, a blocking structure is arranged on the outermost side of the blast hole, specifically, the blast hole blocking structure 5 is further included, the blast hole blocking structure 5 comprises a plurality of blocking cylinders 51, stemming 52 is arranged in the blocking cylinders 51, a turnable blocking part 53 is arranged on the periphery of each blocking cylinder 51, further, the length of each blocking cylinder 51 is 10cm-30cm, and the blocking cylinders 51 are sequentially sleeved together and are plugged into the blast hole for one time or multiple times. At the moment, the combined type blocking barrels 51 are adopted, the number of the blocking barrels 51 is selected according to actual requirements, meanwhile, the required blocking barrels 51 can be connected together outside the blast hole and then plugged into the blast hole, and the blast hole blocking efficiency is improved.
At the in-process of colliery cut-top entry retaining blasting, need make a plurality of big gun holes up, therefore, the explosive loads also and loads up, consequently, gather in the big gun hole can 1 fall out very easily, and at this moment, under connecting piece 3 and location fixed knot construct 4's effect, can be with the explosive in the big gun hole outside, gather can cover 2, connecting piece 3 and location fixed knot construct 4 equipment, then fill in the big gun hole in proper order, only need just alone can with gather in the big gun hole that can 1 relax of pipe this moment, not only can improve work efficiency, simultaneously, can reduce the detonating cord, the use of detonator, and production cost is reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A coal mine roof cutting and roadway retaining energy gathering device is characterized by comprising an energy gathering pipe,
the energy-gathering cover is arranged at the end part of the energy-gathering pipe;
the connecting piece is used for connecting the two adjacent energy-collecting pipes, and after the two adjacent energy-collecting pipes are connected through the connecting piece, the two adjacent energy-collecting pipes can rotate relatively;
the positioning and fixing structure is located on the outer side of the energy-gathering pipe, and when the energy-gathering pipe is plugged into the blast hole, the positioning and fixing structure is in contact with the blast hole under the action of the positioning and fixing structure, so that the energy-gathering pipe is prevented from sliding outwards.
2. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 1, wherein the connecting piece comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are respectively fixed at the end positions of two adjacent energy gathering pipes, the first connecting piece and the second connecting piece are connected through a connecting shaft, and relative rotation can be generated between the first connecting piece and the second connecting piece.
3. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 2, wherein the connecting shaft is arranged at the end of the first connecting piece, the second connecting piece is provided with a long groove, and the connecting shaft is clamped into the long groove, so that the first connecting piece and the second connecting piece are connected.
4. A coal mine roof cutting roadway energy concentrating device according to claim 3, wherein the first connecting piece and the second connecting piece are provided with rotating gaps at side positions, and the first connecting piece and the second connecting piece are provided with energy concentrating groove structures.
5. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 1, wherein the energy gathering cover is a metal hollow cone, a conical groove is formed in one end of the energy gathering cover, the opening direction of the conical groove of the energy gathering cover faces the blasting direction, an energy gathering sleeve is arranged on the outer side of the energy gathering cover, and the energy gathering cover is connected with the energy gathering pipe through the energy gathering sleeve.
6. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 5, wherein the energy gathering sleeve comprises an energy gathering jacket, the energy gathering jacket is annular, a limiting part is arranged at one end of the energy gathering jacket, the energy gathering cover abuts against the energy gathering jacket at the position of the limiting part, and a notch is formed in the side wall of the energy gathering jacket.
7. The coal mine roof cutting and roadway retaining energy gathering device according to claim 1, wherein the positioning and fixing structure is a one-way fixing structure, after the energy gathering pipe is arranged on the positioning and fixing structure, the energy gathering pipe can move towards the deep part of the blast hole, and under the action of the positioning and fixing structure, the energy gathering pipe is limited to move towards the outer side of the blast hole.
8. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 8, wherein the positioning and fixing structure comprises a fixing part and a positioning part, the positioning part is U-shaped, the bottom of the positioning part is provided with an arc shape, the fixing part is located at two ends of the upper side of the positioning part, and the positioning and fixing structure is connected with the energy gathering pipe through the fixing part.
9. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 1, further comprising a blast hole plugging structure, wherein the blast hole plugging structure comprises a plurality of plugging cylinders, stemming is arranged in the plugging cylinders, and the peripheries of the plugging cylinders are provided with turnover plugging parts.
10. The coal mine roof cutting and roadway retaining energy gathering device as claimed in claim 9, wherein the length of the plugging barrel is 10cm-30cm, and a plurality of the plugging barrels are sleeved together in sequence and are plugged into the blast hole once or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211408530.0A CN115574676B (en) | 2022-11-10 | 2022-11-10 | Colliery is cut top entry retaining and is gathered can device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211408530.0A CN115574676B (en) | 2022-11-10 | 2022-11-10 | Colliery is cut top entry retaining and is gathered can device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115574676A true CN115574676A (en) | 2023-01-06 |
| CN115574676B CN115574676B (en) | 2024-03-29 |
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|---|---|---|---|
| CN202211408530.0A Active CN115574676B (en) | 2022-11-10 | 2022-11-10 | Colliery is cut top entry retaining and is gathered can device |
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