CN109373842B - Blast hole non-coupling energy-gathering spacing device suitable for non-coal mine and use method thereof - Google Patents
Blast hole non-coupling energy-gathering spacing device suitable for non-coal mine and use method thereof Download PDFInfo
- Publication number
- CN109373842B CN109373842B CN201811550083.6A CN201811550083A CN109373842B CN 109373842 B CN109373842 B CN 109373842B CN 201811550083 A CN201811550083 A CN 201811550083A CN 109373842 B CN109373842 B CN 109373842B
- Authority
- CN
- China
- Prior art keywords
- rubber band
- tray body
- blast hole
- hole
- barb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Geophysics And Detection Of Objects (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention relates to a blast hole uncoupled energy-gathering spacing device applicable to non-coal mines and a using method thereof, wherein the blast hole uncoupled energy-gathering spacing device applicable to the non-coal mines comprises a tray body, an upper barb and a lower barb which are arranged on the periphery of the tray body and used for clamping a hole wall, the tray body comprises an inverted cone-shaped tray body and an internal thread column which is arranged on the upper surface of the inverted cone-shaped tray body and provided with internal threads, a hanging rubber band buckle is arranged on the inner wall of the internal thread column, a rubber band hole used for penetrating a rubber band is arranged below the internal thread column on the inverted cone-shaped tray body, a buckle used for internally bundling the rubber band is arranged on the upper surface of the lower barb, an internally bundled rubber band is penetrated on the buckle on the surface of each lower barb, the internally bundled end of the internally bundled rubber band penetrates through the rubber band hole and is connected to the hanging rubber band buckle, and an explosive fuse hole used for. According to the invention, the tray installation between the blocking and the charging is adopted, so that the generation of the rocket launcher is prevented, the flying stones are reduced, and the blasting safety coefficient is improved.
Description
The technical field is as follows:
the invention provides a blast hole non-coupling energy-gathering spacing device suitable for non-coal mines and a using method thereof, and belongs to the field of construction of open-air and underground blasting of non-coal mines.
Background art:
the spaced explosive charging is characterized in that under the premise of ensuring that ore rocks are fully broken, hole bottom air is adopted for spaced explosive charging, explosive is divided into several independent sections of explosive columns, each section of explosive column is provided with an independent detonation and detonation propagation system, and finally all detonation wires are connected into a detonation network through the ground. When in detonation, the explosive stress waves generated by several sections of explosive columns in the moment of detonation of the same blasthole explosive are mutually superposed, and the detonation gas products interact and influence with each other, so that the detonation effect and the stacking shape of rock slag can be effectively improved, and the method has extremely important significance for reducing the peak mass point vibration speed of detonation vibration, reducing the bulk rate and reducing the root.
At present, the main adopted spacer material is air, and the air spacer which is applied more in a blasting field is used for inflating a polyethylene plastic bag by utilizing compressed gas so as to achieve the purpose of air spacing. The air spacer not only has higher production cost, but also has higher requirement on the safety of the steel cylinder of the stored compressed gas. Meanwhile, the air spacer has lower control capability on the uncoupled degree in the blast hole, and cannot achieve the optimal blasting effect of uncoupled charging.
The invention content is as follows:
aiming at the defects, the invention provides a non-coupling blast hole energy-gathering spacing device suitable for non-coal mines and a using method thereof.
The invention is suitable for the non-coal mine blast hole non-coupling energy-gathering spacing device, and is characterized in that: including the tray body with establish and be used for blocking the last barb and lower barb of pore wall in tray body periphery, the tray body includes the back taper disk body and establishes and have the internal screw thread post on back taper disk body upper surface, the inner wall of internal screw thread post is equipped with one and hangs the rubber band buckle, lies in internal screw thread post below on the back taper disk body and is equipped with the rubber band hole that is used for wearing to establish the rubber band, be equipped with the buckle for the internal beam rubber band on the barb upper surface down, wear to be equipped with the internal beam rubber band on the buckle on barb surface under each, the internal beam end of internal beam rubber band passes the rubber band jogged joint and hangs the rubber band buckle, still be equipped with the explosive fuse hole that is used for wearing to establish the explosive fuse on the tray body.
Furthermore, the hanging rubber band buckle is in a crank shape formed by connecting two vertical thin copper sheets, and the opening of the hanging rubber band buckle faces upwards.
Furthermore, the external thread rod is screwed on the internal thread column, scales are arranged on the surface of the external thread rod from bottom to top, the lowest end of the external thread rod is a zero scale mark, and 5cm is used as a unit scale to be marked upwards in sequence along the axial direction of the rod body.
Further, on the aforesaid, barb and barb down are connected by two rectangle copper sheets and are formed sharp toper, and a minor face fixed connection of two rectangle copper sheets is in the same place, and relative minor face divides to fix on tray body periphery, the buckle is connected the turning shape that forms by two perpendicular copper sheets, and the oral area is outwards.
Furthermore, the upper barbs and the lower barbs are staggered by 15 degrees in the circumferential direction.
Furthermore, the inner-bundle rubber band is arranged on the buckles on the surfaces of the lower barbs in a penetrating mode to form a circle, so that the lower barbs are contracted to generate pretension, and the inner-bundle end of the inner-bundle rubber band is hung on the hanging rubber band buckle by traction.
The invention relates to a using method of a non-coupling blast hole energy-gathering spacing device applicable to non-coal mines, which is characterized by comprising the following steps:
the method comprises the following steps:
step S1: according to the blasting design scheme, drilling a blast hole with a certain inclination angle and depth at a specified position by using drilling equipment;
step S2: before charging, rechecking the depth and inclination angle of each blast hole and whether water exists in the blast holes;
step S3: determining the uncoupling degree in the blast hole, and determining the charge length and the air interval length of each section;
step S4: when the powder explosive or the bagged explosive is charged, when the charge reaches one fourth of the charge length, putting an explosive fuse or an explosive package, completing three fourths of charge, and requiring the charge length to be properly detected in the charge process;
step S5: the external thread rod in the energy-gathering spacing device is screwed into the internal thread column in the tray body to connect the two;
step S6: determining the circumferential position of the hole opening of the detonating cord in the tray body through the relative position of the scale marks on the external thread rod and the hole opening of the blast hole, and enabling the detonating tube detonator or the detonating cord of the detonating cartridge to penetrate through the hole of the detonating cord;
step S7: according to the designed air interval length, the scale marks on the external thread rod are utilized to slowly push down the tray body connected with the external thread rod to an accurate position;
step S8: rotating the external thread rod to further penetrate into the internal thread part of the tray body by means of the friction force between the upper barb in the device and the inner wall of the blast hole, damaging a hanging rubber band buckle in the internal thread, fixing the tray body at the corresponding position of the blast hole, rotating the external thread rod out of an internal thread column of the tray body, and drawing out the blast hole;
step S9: repeating the process of steps S4 to S8 until the charge portion is completed;
step S10: filling the blast holes with the stemming around the hole opening, and removing the stones with larger grain sizes until the ground.
Further, in step S6, the uncoupling degree in the blast hole and the air space length are precisely controlled by controlling the fixing position of the tray body in the blast hole.
Further, in step S8, the external screw thread rod is rotated to further go deep into the internal thread part of the tray body until the buckle of the hanging rubber band is destroyed, so that the internal-bundle rubber band in the tray body turns to loose from a tight state, the lower barb in the tray body is subjected to space limitation of the inner wall of the blast hole and cannot be completely restored to the original state due to the loose of the internal-bundle rubber band and the elastic deformation of the lower barb, and the periphery of the lower barb is in close contact with the inner wall of the blast hole to generate increased pressure, so that the bearing of the tray body is supported by the friction force between the lower barb and the inner wall of the blast hole.
The tray body of the non-coupling energy-gathering spacing device for the blast hole of the non-coal mine is in an inverted cone shape, so that the energy-gathering holes are formed, on one hand, after the explosive below the tray body is detonated, in the process that the detonation wave is propagated upwards, the tray body, the barbs and the energy-gathering holes form concave reflection, so that the detonation wave is more intensively propagated to the wall of the blast hole, the massive rate of ore rocks is reduced, and the blasting strength is increased; on the other hand, after the explosive above the tray body is detonated, according to the energy-gathering hole principle, the energy near the energy-gathering holes is concentrated, the surrounding explosive keeps original power, and the concentrated energy is just used for crushing the ore rocks of the air space part below, so that the large block rate of the ore rocks of the part is reduced, the production efficiency is improved, and the economic benefit is increased.
Compared with the prior art, the invention has the following beneficial effects: in the multiple blasting designs that adopt non-coupling powder charge to non-colliery mountain open-air step, underground medium-length hole etc. the construction technology of big gun hole non-coupling powder charge is complicated, the controllability to big gun hole non-coupling degree subalternation problem, rely on the cooperation of the external screw thread pole and the bottom tray body of this application, the scale mark accurate control tray body of utilization external screw thread pole is at the inside concrete fixed position of big gun hole, the air interval length of fixed control big gun hole powder charge through the tray body, reach the non-coupling degree in the accurate control big gun hole, make the diffusion of blasting stress in the downthehole more even, reduce the bold rate of ore deposit, gain better blasting effect. Through the tray installation between stopping up and the powder charge, strengthen the jam intensity in big gun hole, prevent the production of cupola big gun, reduce the flyrock, improve blasting factor of safety.
Description of the drawings:
the invention is further described with reference to the following figures.
FIG. 1 is a schematic illustration of a configuration of a blast hole containing explosive and fitted with a shaped charge spacer of the present invention to be detonated;
FIG. 2 is a front view of a shaped spacer tray body;
fig. 3 is a side view of a shaped spacer tray body;
FIG. 4 is a top view of a shaped spacer tray body;
FIG. 5 is a schematic view of a threaded rod externally of a shaped spacer;
FIG. 6 is a schematic view of the threaded rod external to the energy concentrating spacer attached to the tray body;
in the figure: i, stemming with the particle size not more than 0.3 cm; II, powdery or bagged explosives; III-air space;
1-copper sheet; 2-barb forming; 3-lower barb; 4-an internal threaded post; 5-a tray body; 61-hanging; 62-internally binding a rubber band; 7, a rubber rib hole; 8-detonating cord holes; 9 hanging a rubber band buckle; 10-buckling of the inner binding rubber band; 11-external screw-threaded rod; an inverted conical disk body K; m-the borehole wall.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and detailed description.
The invention is suitable for the non-coupling energy-gathering spacer device of blast holes of non-coal mines, comprising a tray body 5, an upper barb 2 and a lower barb 3 which are arranged on the periphery of the tray body 5 and are used for clamping the hole wall, wherein the tray body 5 comprises a reverse cone-shaped tray body K and an internal thread column 4 which is arranged on the upper surface of the reverse cone-shaped tray body K and is provided with an internal thread, the reverse cone-shaped tray body can be made of solid materials or hollow materials, the periphery of the reverse cone-shaped tray body K is connected with a copper sheet 1, the upper barb 2 and the lower barb 3 are connected on the outer peripheral surface of the copper sheet 1, the inner wall of the internal thread column 4 is provided with a hanging rubber band buckle 9, a rubber band hole 7 for penetrating a rubber band is arranged below the internal thread column 4 on the reverse cone-shaped tray body, the upper surface of the lower barb is provided with a buckle 10 for internally binding the rubber band, the buckles on the surfaces of the lower barbs are penetrated by an, and the tray body is also provided with an explosion wire hole 8 for penetrating an explosion wire.
In this embodiment, for reasonable in design, above-mentioned rubber band buckle that hangs is connected the turning shape that forms by two perpendicular thin copper sheets, and the oral area is up.
In this embodiment, for reasonable design, the external screw rod 11 is screwed on the internal screw post, the surface of the external screw rod is provided with scales from bottom to top, the lowest end of the external screw rod is a zero scale mark, and the scales are sequentially marked upwards along the axial direction of the rod body by taking 5cm as a unit scale.
In this embodiment, for reasonable in design, above-mentioned barb and lower barb are connected by two rectangle copper sheets and are formed sharp toper, and a minor face fixed connection of two rectangle copper sheets is in the same place, and relative minor face divides to fix on the tray body periphery, the buckle is connected the turning shape that forms by two perpendicular copper sheets, and the oral area is outwards.
In this embodiment, for reasonable in design, above-mentioned overhead barb staggers 15 settings with lower barb circumferencial direction.
In this embodiment, for reasonable in design, above-mentioned inner band rubber band 62 wears to establish and forms the circle on the buckle on each barb surface down to make each barb adduction produce pretension down, the inner band end of inner band rubber band is hung on hanging the rubber band buckle by the tractive, and the inner band section of inner band rubber band can be called as and hangs rubber band 61.
In this embodiment, be equipped with rubber band hole 7 apart from central axis 1.5cm department on the tray body, the rubber band hole is used for running through and hangs the rubber band, it is rubber to hang the rubber band material, and the flexibility is big, is difficult for breaking.
In this embodiment, the internal thread post inner wall sets up to hang rubber band buckle 9 apart from the down 2cm department of capital, it constitutes for two perpendicular thin copper sheets to hang the rubber band buckle, and ductility is strong.
In this embodiment, go up the barb material and be the copper sheet, ductility is strong, and rigidity is big, is convenient for firmly imbed the pore wall.
In this embodiment, the internal bundle rubber band buckle is located down barb center 1cm on the upper side, the internal bundle rubber band buckle comprises two perpendicular thin copper sheets, the internal bundle rubber band material is rubber, and the flexibility is big, is difficult for breaking.
In this embodiment, the detonating cord holes 8 are used for penetrating through explosive detonating cords of each section, and the detonating cord holes at intervals are in the same direction, so that blasting charging and interval working of workers are facilitated.
The invention relates to a structure for using a non-coupling energy-gathering spacer device in a blast hole of a non-coal mine, which comprises the blast hole drilled in the non-coal mine (the blast hole forms a blast hole wall M), a plurality of non-coupling energy-gathering spacer devices are arranged in the blast hole at intervals from the hole bottom to an orifice, each non-coupling energy-gathering spacer device comprises a tray body 5, an upper barb 2 and a lower barb 3 which are arranged on the periphery of the tray body 5 and used for clamping the hole wall, the tray body 5 comprises an inverted cone-shaped tray body K and an internal thread column 4 which is arranged on the upper surface of the inverted cone-shaped tray body K and provided with internal threads, the inverted cone-shaped tray body can be made of solid materials or hollow materials, the periphery of the inverted cone-shaped tray body K is connected with a copper sheet 1, the upper barb 2 and the lower barb 3 are connected on the outer peripheral surface of the copper sheet 1, the inner wall of the internal thread column 4 is provided with a hanging, the upper surface of the lower barb is provided with a buckle 10 for internally binding a rubber band, the buckle on the surface of each lower barb is penetrated with an internally bound rubber band 61, the internally bound end of the internally bound rubber band is connected to a suspension rubber band buckle 9 through a rubber band hole, and the tray body is also provided with an explosive fuse hole 8 for penetrating an explosive fuse; and filling part of powdery explosives or bagged explosives II between adjacent non-coupled energy-gathering spacing devices in the blast hole and reserving an air space III, namely, the space between the adjacent non-coupled energy-gathering spacing devices is not completely filled with the explosives.
The blast hole non-coupling energy-gathering spacing device applicable to non-coal mines has the following advantages:
1. the cone mouth of the middle inverted cone-shaped disc body faces downwards to form an energy gathering hole, the energy gathering hole can well gather the explosion energy of each section of explosive cartridge and then guide the explosive energy downwards, and the problems of high rock block rate, uneven block degree and the like at the bottom of a blast hole and at intervals can be well solved. 2. Scales are marked on the external thread rod matched with the internal thread column, so that the blocking length of the blast hole can be accurately determined, and the blasting effect can be optimal. 3. The existing air spacer mostly adopts the mode of inflating to expand a polyvinyl chloride plastic bag to realize the air spacing effect, the conditions of bag body damage and the like are often easy to occur, the utilization rate is low, the air spacer disclosed by the invention starts from the spacer structure, the problem does not occur, and the utilization rate is high. 4. When the invention is applied to spacing blocking materials and cartridges, the blocking effect can be achieved to a certain extent by virtue of the barb structure.
The invention discloses a using method of a non-coupling blast hole energy-gathering spacing device applicable to non-coal mines, which comprises the following steps:
step S1: according to the blasting design scheme, drilling a blast hole with a certain inclination angle and depth at a specified position by using drilling equipment;
step S2: before charging, rechecking the depth and inclination angle of each blast hole and whether water exists in the blast holes;
step S3: determining the uncoupling degree in the blast hole, and determining the charge length and the air interval length of each section;
step S4: when the powder explosive or the bagged explosive is charged, when the charge reaches one fourth of the charge length, putting an explosive fuse or an explosive package, completing three fourths of charge, and requiring the charge length to be properly detected in the charge process;
step S5: the external thread rod in the energy-gathering spacing device is screwed into the internal thread column in the tray body to connect the two;
step S6: determining the circumferential position of the hole opening of the detonating cord in the tray body through the relative position of the scale marks on the external thread rod and the hole opening of the blast hole, and enabling the detonating tube detonator or the detonating cord of the detonating cartridge to penetrate through the hole of the detonating cord;
step S7: according to the designed air interval length, the scale marks on the external thread rod are utilized to slowly push down the tray body connected with the external thread rod to an accurate position;
step S8: rotating the external thread rod to further penetrate into the internal thread part of the tray body by means of the friction force between the upper barb in the device and the inner wall of the blast hole, damaging a hanging rubber band buckle in the internal thread, fixing the tray body at the corresponding position of the blast hole, rotating the external thread rod out of an internal thread column of the tray body, and drawing out the blast hole;
step S9: repeating the process of steps S4 to S8 until the charge portion is completed;
step S10: filling the blast holes with the stemming around the hole opening, and removing the stones with larger grain sizes until the ground.
Further, in step S6, the uncoupling degree in the blast hole and the air space length are precisely controlled by controlling the fixing position of the tray body in the blast hole.
In this embodiment, in step S4, the length of the externally threaded rod in the energy-gathering spacer screwed into the internally threaded column in the tray body is 5-7 mm;
further, in step S8, the external screw thread rod is rotated to further go deep into the internal thread part of the tray body until the buckle of the hanging rubber band is destroyed, so that the internal-bundle rubber band in the tray body turns to loose from a tight state, the lower barb in the tray body is subjected to space limitation of the inner wall of the blast hole and cannot be completely restored to the original state due to the loose of the internal-bundle rubber band and the elastic deformation of the lower barb, and the periphery of the lower barb is in close contact with the inner wall of the blast hole to generate increased pressure, so that the bearing of the tray body is supported by the friction force between the lower barb and the inner wall of the blast hole.
The tray body of the non-coupling energy-gathering spacing device for the blast hole of the non-coal mine is in an inverted cone shape, so that the energy-gathering holes are formed, on one hand, after the explosive below the tray body is detonated, in the process that the detonation wave is propagated upwards, the tray body, the barbs and the energy-gathering holes form concave reflection, so that the detonation wave is more intensively propagated to the wall of the blast hole, the massive rate of ore rocks is reduced, and the blasting strength is increased; on the other hand, after the explosive above the tray body is detonated, according to the energy-gathering hole principle, the energy near the energy-gathering holes is concentrated, the surrounding explosive keeps original power, and the concentrated energy is just used for crushing the ore rocks of the air space part below, so that the large block rate of the ore rocks of the part is reduced, the production efficiency is improved, and the economic benefit is increased.
Compared with the prior art, the invention has the following beneficial effects: in the multiple blasting designs that adopt non-coupling powder charge to non-colliery mountain open-air step, underground medium-length hole etc. the construction technology of big gun hole non-coupling powder charge is complicated, the controllability to big gun hole non-coupling degree subalternation problem, rely on the cooperation of the external screw thread pole and the bottom tray body of this application, the scale mark accurate control tray body of utilization external screw thread pole is at the inside concrete fixed position of big gun hole, the air interval length of fixed control big gun hole powder charge through the tray body, reach the non-coupling degree in the accurate control big gun hole, make the diffusion of blasting stress in the downthehole more even, reduce the bold rate of ore deposit, gain better blasting effect. Through the tray installation between stopping up and the powder charge, strengthen the jam intensity in big gun hole, prevent the production of cupola big gun, reduce the flyrock, improve blasting factor of safety.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a big gun hole uncoupled can spacer assembly suitable for non-coal mine which characterized in that: including the tray body with establish and be used for blocking last barb and lower barb of pore wall in tray body periphery, the tray body includes the back taper disk body and establishes and have internal screw thread post on back taper disk body upper surface, and the periphery of back taper disk body is connected with the copper sheet, goes up barb and barb connection down on the copper sheet outer peripheral face, the inner wall of internal screw thread post is equipped with one and hangs the rubber band buckle, lies in internal screw thread post below on the back taper disk body and is equipped with the rubber band hole that is used for wearing to establish the rubber band, be equipped with the buckle for internal beam rubber band on the barb upper surface down, wear to be equipped with the internal beam rubber band on the buckle on each barb surface down, the internal beam end of internal beam rubber band passes the rubber band jogged joint and hangs the rubber band buckle, still be equipped with the explosive fuse hole that is used for wearing to establish the explosive fuse.
2. The non-coupling blast hole energy-gathering spacing device applicable to the non-coal mine as claimed in claim 1, wherein: the hanging rubber band buckle is in a crank shape formed by connecting two vertical thin copper sheets, and the mouth part of the hanging rubber band buckle faces upwards.
3. The non-coupling blast hole energy-gathering spacing device applicable to the non-coal mine as claimed in claim 1, wherein: the internal thread post is screwed with the external screw thread pole, external screw thread pole surface is provided with the scale from bottom to top, the threaded rod is zero scale mark for the lower extreme outside the scale to 5cm is the unit scale, upwards marks along pole body axial in proper order.
4. The non-coupling blast hole energy-gathering spacing device applicable to the non-coal mine as claimed in claim 1, wherein: go up the barb and connect by two rectangle copper sheets with barb down and form sharp toper, a minor face fixed connection of two rectangle copper sheets is in the same place, and relative minor face divides to fix on the tray body periphery, the buckle is connected the turning shape that forms by two perpendicular copper sheets, and the oral area is outwards.
5. The non-coupling blast hole energy-gathering spacing device applicable to the non-coal mine as claimed in claim 1, wherein: the upper barbs and the lower barbs are staggered by 15 degrees in the circumferential direction.
6. The non-coupling blast hole energy-gathering spacing device applicable to the non-coal mine as claimed in claim 1, wherein: the inner-bundle rubber band is arranged on the buckles on the surfaces of the lower barbs in a penetrating mode to form a circle, so that the lower barbs are contracted to generate pretension, and the inner-bundle end of the inner-bundle rubber band is hung on the hanging rubber band buckle by traction.
7. The use method of the non-coal mine blast hole decoupling energy gathering spacing device in claim 1, wherein the method comprises the following steps:
the method comprises the following steps:
step S1: according to the blasting design scheme, drilling a blast hole with a certain inclination angle and depth at a specified position by using drilling equipment;
step S2: before charging, rechecking the depth and inclination angle of each blast hole and whether water exists in the blast holes;
step S3: determining the uncoupling degree in the blast hole, and determining the charge length and the air interval length of each section;
step S4: when the powder explosive or the bagged explosive is charged, when the charge reaches one fourth of the charge length, putting an explosive fuse or an explosive package, completing three fourths of charge, and requiring the charge length to be properly detected in the charge process;
step S5: the external thread rod in the energy-gathering spacing device is screwed into the internal thread column in the tray body to connect the two;
step S6: determining the circumferential position of the hole opening of the detonating cord in the tray body through the relative position of the scale marks on the external thread rod and the hole opening of the blast hole, and enabling the detonating tube detonator or the detonating cord of the detonating cartridge to penetrate through the hole of the detonating cord;
step S7: according to the designed air interval length, the scale marks on the external thread rod are utilized to slowly push down the tray body connected with the external thread rod to an accurate position;
step S8: rotating the external thread rod to further penetrate into the internal thread part of the tray body by means of the friction force between the upper barb in the device and the inner wall of the blast hole, damaging a hanging rubber band buckle in the internal thread, fixing the tray body at the corresponding position of the blast hole, rotating the external thread rod out of an internal thread column of the tray body, and drawing out the blast hole;
step S9: repeating the process of steps S4 to S8 until the charge portion is completed;
step S10: filling the blast holes with the stemming around the hole opening, and removing the stones with larger grain sizes until the ground.
8. The use method of the non-coupling blast hole energy-gathering spacing device suitable for the non-coal mines as set forth in claim 7 is characterized in that: in step S6, the degree of uncoupling in the blast hole is controlled and the air space length is accurately controlled by controlling the fixing position of the tray body in the blast hole.
9. The use method of the non-coupling blast hole energy-gathering spacing device suitable for the non-coal mines as set forth in claim 7 is characterized in that: in step S8, the external screw thread pole is rotated to further go deep into the internal thread part of the tray body until the buckle of the hanging rubber band is destroyed, so that the internal-bundle rubber band in the tray body turns to loose from a tight state, the lower barb in the tray body is limited by the space of the inner wall of the blast hole and can not be completely restored in the process of restoring, the periphery of the lower barb is in close contact with the inner wall of the blast hole and generates increased pressure, and the bearing of the tray body is supported by the friction force between the lower barb and the inner wall of the blast hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550083.6A CN109373842B (en) | 2018-12-18 | 2018-12-18 | Blast hole non-coupling energy-gathering spacing device suitable for non-coal mine and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550083.6A CN109373842B (en) | 2018-12-18 | 2018-12-18 | Blast hole non-coupling energy-gathering spacing device suitable for non-coal mine and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109373842A CN109373842A (en) | 2019-02-22 |
| CN109373842B true CN109373842B (en) | 2020-08-07 |
Family
ID=65374188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811550083.6A Active CN109373842B (en) | 2018-12-18 | 2018-12-18 | Blast hole non-coupling energy-gathering spacing device suitable for non-coal mine and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109373842B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387126B (en) * | 2018-12-18 | 2020-08-11 | 福州大学 | Non-coupling energy-gathering spacing device and structure thereof used in non-coal mine blast hole |
| CN110411300B (en) * | 2019-07-31 | 2023-06-27 | 中铁第一勘察设计院集团有限公司 | Disposable multistage air spaced charging device for subway blasting construction |
| CN110779409A (en) * | 2019-09-17 | 2020-02-11 | 中国水利水电第四工程局有限公司 | Single-hole double-plug section type blasting method |
| CN110671983A (en) * | 2019-10-08 | 2020-01-10 | 中国葛洲坝集团易普力股份有限公司 | Presplitting blasting combined charging structure and method |
| CN111366052B (en) * | 2020-04-28 | 2023-06-27 | 山西中煤平朔爆破器材有限责任公司 | Device for rotationally and telescopically blasting and isolating explosive in water-rich deep hole of strip mine and application method of device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2235971C1 (en) * | 2003-07-25 | 2004-09-10 | Федотенко Сергей Михайлович | Method of dispersion of a charge in a borehole |
| CN103017623A (en) * | 2012-12-19 | 2013-04-03 | 武汉大学 | Air spacing device and use method of air spacing device |
| CN104390536A (en) * | 2014-10-15 | 2015-03-04 | 四川雅化实业集团工程爆破有限公司 | Mechanical blast hole spacing device |
| CN104792238A (en) * | 2015-05-08 | 2015-07-22 | 威海埃姆提爱矿山设备有限公司 | Fan-shaped blast hole positioning device |
| CN205642181U (en) * | 2015-05-08 | 2016-10-12 | 威海埃姆提爱矿山设备有限公司 | Dish -type location spacer |
| CN207703092U (en) * | 2017-12-28 | 2018-08-07 | 中国电建集团成都勘测设计研究院有限公司 | Deep hole explosive airspace device |
| CN109387126B (en) * | 2018-12-18 | 2020-08-11 | 福州大学 | Non-coupling energy-gathering spacing device and structure thereof used in non-coal mine blast hole |
-
2018
- 2018-12-18 CN CN201811550083.6A patent/CN109373842B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109373842A (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109373842B (en) | Blast hole non-coupling energy-gathering spacing device suitable for non-coal mine and use method thereof | |
| CN204988049U (en) | Box -like gathering of tunnel universal set can charging means | |
| CN112393654B (en) | Two-way energy-gathering blasting charge structure of joint-cutting pipe | |
| CN210128664U (en) | Blast hole spaced charging device for blasting engineering | |
| CN109387126B (en) | Non-coupling energy-gathering spacing device and structure thereof used in non-coal mine blast hole | |
| CN104482816B (en) | A kind of vertical periphery segment algorithm gradient presplit blasting method and device | |
| CN108895934A (en) | A kind of deep hole standing shot blasting charge method and device | |
| CN107289829A (en) | A kind of ring plane jet jet cutter and its application method | |
| CN105387777B (en) | A kind of photoface exploision spaced loading joint-cutting pipe | |
| CN202002580U (en) | Directional control blasting cartridge roll | |
| CN110725685A (en) | Hydraulic fracturing combined hydraulic blasting roadway large-footage tunneling method and fracturing device | |
| CN109506533B (en) | Air spacing device for deep hole blasting charge | |
| CN203869598U (en) | Charge and detonator matching mode for achieving unit blast hole sectional blasting | |
| CN109827484A (en) | A kind of huge thick tight roof orientation presplitting of highly gassy mine loosens method | |
| CN107367207B (en) | Joint-cutting explosive package and axial uncoupled explosive-loading step deep hole smooth blasting device | |
| CN105423831A (en) | Conical building superposition type in-situ control and detonating dismounting method | |
| CN109916243A (en) | A kind of presplitting device and method | |
| CN115950321A (en) | Blasting method for reducing support damage of pipe shed, explosive loading device and explosive cartridge structure | |
| CN205897978U (en) | A but, reducing spacer that be used for rock mass deep hole gather can joint -cutting blasting | |
| CN110207555B (en) | Soft interlayer geological slope controlled blasting method | |
| CN205537376U (en) | Deep hole blasting charging means | |
| CN111854552B (en) | Top plate deep hole energy-gathering blasting device | |
| CN208313149U (en) | A kind of presplit blasting blast hole projectile filling device for excavation of foundation pit | |
| CN217738061U (en) | Air space charging means that underwater blasting engineering used | |
| CN110360908B (en) | Device and method for increasing gap distance and enhancing smooth blasting effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |