CN109373842A - A kind of blasthole being applicable in non-coal mine does not couple cumulative escapement and its application method - Google Patents
A kind of blasthole being applicable in non-coal mine does not couple cumulative escapement and its application method Download PDFInfo
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- CN109373842A CN109373842A CN201811550083.6A CN201811550083A CN109373842A CN 109373842 A CN109373842 A CN 109373842A CN 201811550083 A CN201811550083 A CN 201811550083A CN 109373842 A CN109373842 A CN 109373842A
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- blasthole
- rubber band
- tray body
- hangnail
- cumulative
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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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- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to a kind of blastholes for being applicable in non-coal mine not to couple cumulative escapement and its application method, the blasthole for being wherein applicable in non-coal mine does not couple cumulative escapement and includes tray body and be located at tray body periphery for blocking the upper hangnail and lower hangnail of hole wall, the tray body includes back taper disk body and is located on back taper disk body upper surface tool internal thread internal threaded column, the inner wall of the internal threaded column is equipped with a suspension rubber band buckle, it is located at the rubber band hole being equipped with below internal threaded column for wearing rubber band on back taper disk body, the lower hangnail upper surface is equipped with the buckle to internal beam rubber band, internal beam rubber band is equipped on the buckle on each lower hangnail surface, the internal beam end of the internal beam rubber band passes through rubber band hole and is connected on suspension rubber band buckle, the primacord hole for wearing primacord is additionally provided on the tray body.The present invention is installed by the pallet between blocking and powder charge, prevents the generation of chongtian mortar, reduces slungshot, improves burst safety factor.
Description
Technical field:
The present invention provides a kind of blastholes for being applicable in non-coal mine not to couple cumulative escapement and its application method, belongs to non-coal
The construction fields such as the outdoor, underground explosion in mine.
Background technique:
Spaced loading is under the premise of guaranteeing that ore-rock is sufficiently broken, and using bottom hole underground borehole blasting, explosive is divided into independence
Several sections of powder columns, every section of powder column is designed with independent detonation and detonation train, has finally been connected into all detonating cords by ground
Quick-fried network.When detonation, the Explosive stress wave that same several sections of powder columns of blasthole explosive charge moment generate is overlapped mutually, and detonation gas produces
Object interaction influences each other, and finally can effectively improve the accumulation shape of demolition effect and rock slag, for reducing explosion shake
Dynamic peak particle vibration velocity, reduction boulder yield and reduction foundation has extremely important meaning.
The interval substance mainly used at present is mainly air, and demolition site applies more air-spacer, is to utilize
Polyethylene plastic bag is inflated by compressed gas, achievees the purpose that airspace.Such air-spacer not only production cost
It is higher, and have higher requirement to the safety of the steel cylinder of the compressed gas of storage.This air-spacer is to blasthole simultaneously
Inside the control ability of the degree of coupling is not lower, cannot reach the best demolition effect of Uncoincided charge.
Summary of the invention:
The purpose of the present invention is places against the above deficiency, provide a kind of blasthole for being applicable in non-coal mine and do not couple cumulative interval
Device and its application method.
The blasthole that the present invention is applicable in non-coal mine does not couple cumulative escapement, it is characterised in that: including tray body and sets
It is used to block the upper hangnail and lower hangnail of hole wall in tray body periphery, the tray body includes back taper disk body and is located at back taper
Has internal thread internal threaded column on disk body upper surface, the inner wall of the internal threaded column is equipped with a suspension rubber band buckle, in back taper
It is located at the rubber band hole being equipped with below internal threaded column for wearing rubber band on shape disk body, the lower hangnail upper surface is equipped within use
The buckle of beam rubber band, is equipped with internal beam rubber band on the buckle on each lower hangnail surface, and the internal beam end of the internal beam rubber band passes through skin
Muscle hole is connected on suspension rubber band buckle, and the primacord hole for wearing primacord is additionally provided on the tray body.
Further, above-mentioned suspension rubber band buckle connects the shape that turns formed by two vertical scale coppers, and oral area is upward.
Further, external thread rod is bolted on above-mentioned internal threaded column, the external thread rod surface is provided with from bottom to top
Scale, the scale, using 5cm as unit scale, are successively marked along shaft axially upwards using external thread rod bottom as zero graduation line
It carves.
Further, above-mentioned upper hangnail is connected to form sharp cone distal with lower hangnail by two rectangular copper thin slices, two long
One short side of rectangular copper foil is fixed together, and opposite short side is separately fixed on tray body periphery, it is described buckle by
Two vertical copper sheets connect the shape that turns to be formed, and oral area is outwardly.
Further, above-mentioned upper hangnail is staggered 15 ° with lower hangnail circumferencial direction and is arranged.
Further, above-mentioned internal beam rubber band is threaded through on the buckle on each lower hangnail surface and forms circle, so that each lower hangnail
Interior receipts generate pretension, and the internal beam end of internal beam rubber band is placed on suspension rubber band buckle by drawing.
The blasthole that the present invention is applicable in non-coal mine does not couple the application method of cumulative escapement, it is characterised in that:
The following steps are included:
Step S1: according to blasting design scheme, drilling device is utilized in designated position, digs out the blasthole of certain inclination angle and depth；
Step S2: whether before powder charge, rechecking in the depth and inclination angle and hole of each blasthole has water；
Step S3: determining the not degree of coupling in blasthole, determines each section of loaded length and Air space length；
Step S4: when powder type explosive or bag powder powder charge, when powder charge reaches a quarter of loaded length, it is put into primacord
Or after igniting primer, 3/4ths powder charge after the completion, it is desirable that suitably loaded length is detected in powder charge process；
Step S5: by the internal threaded column in the external thread rod precession tray body in cumulative escapement, the two is made to be connected to one
It rises；
Step S6: by the relative position of external thread rod high scale mark and blasthole aperture, primacord aperture in tray body is determined
Circumferential position, and the Nonel detonator of igniting primer or primacord are passed through into primacord hole；
Step S7: it according to the Air space length of design, is identified using external thread rod high scale, by what is connect with external thread rod
It pushes away and is put to accurate location under tray body is slow；
Step S8: by the frictional force of upper hangnail and blasthole inner wall in device, rotation external thread rod further gos deep into tray body
Female thread portion, destroy internal screw thread in suspension rubber band buckle, so that tray body is fixed on the corresponding position of blasthole, by external screw thread
Bar screws out the internal threaded column of tray body, extracts blasthole out；
Step S9: repeating the process of step S4 to step S8, until charge segment is completed；
Step S10: will be filled into blasthole in stemming around aperture, and reject the biggish stone of partial size, until ground.
Further, in step s 6, the fixation position by control tray body in blasthole, controls and does not couple in blasthole
Spend and accurately control Air space length.
Further, in step s 8, rotation external thread rod further gos deep into the female thread portion of tray body until suspension
Rubber band buckle is corrupted such that in tray body that internal beam rubber band is switched to relax by tight state, and lower hangnail is due to internal beam in tray body
The relaxation of rubber band and itself existing flexible deformation, during reinstatement, the space by blasthole inner wall is limited, cannot
It restores to the original state completely, so that lower hangnail periphery and blasthole inner wall are in close contact and generate the pressure of increasing, by lower hangnail and big gun
Frictional force between the inner wall of hole supports the load-bearing of tray body.
The tray body that the blasthole that the present invention is applicable in non-coal mine does not couple cumulative escapement is in inverted cone shape, so as to form
Sockets for collecting energy, after being on the one hand the explosive initiation below tray body, during detonation wave upwardly propagates, tray body, hangnail and poly-
The concavity reflection that energy cave is formed, is more concentrated at detonation wave to blasthole hole wall and propagates, reduce the boulder yield of ore-rock, it is strong to increase explosion
Degree；On the other hand, after the explosive initiation above tray body, according to sockets for collecting energy principle, the energy near sockets for collecting energy is concentrated, and all
The explosive enclosed keeps original power, and the energy concentrated then just is being used on the ore-rock of broken lower air compartment, reduces
The boulder yield of the ore-rock of the part improves production efficiency, increases economic benefit.
Compared with prior art, the invention has the following advantages: being directed to non-coal mine perron, underground medium-length hole
Etc. in a variety of explosions designs using Uncoincided charge, the complicated construction technique of blasthole Uncoincided charge, to the blasthole not degree of coupling
Controlling it is poor the problems such as, by the application external thread rod and bottom tray body cooperation, utilize the graduated scale of external thread rod
Know accurate control tray body and specifically fix position inside blasthole, passes through the airspace of the fixed control blast hole projectile filling of tray body
Length reaches the not degree of coupling accurately controlled in blasthole, keeps diffusion of the burst stress in hole more uniform, reduces ore-rock
Boulder yield obtains better demolition effect.By the pallet installation between blocking and powder charge, enhances the blocking intensity of blasthole, prevent
The only generation of chongtian mortar reduces slungshot, improves burst safety factor.
Detailed description of the invention:
The invention patent is further illustrated with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of blasting charge and installation cumulative escapement of the present invention when igniting in blasthole；
Fig. 2 is the main view of cumulative escapement tray body；
Fig. 3 is the side view of cumulative escapement tray body；
Fig. 4 is the top view of cumulative escapement tray body；
Fig. 5 is cumulative escapement external thread rod schematic diagram；
Fig. 6 is schematic diagram after cumulative escapement external thread rod is connect with tray body；
In figure: I-partial size is not more than the stemming of 0.3cm；II-powdery or bag powder；III-airspace；
1- copper sheet；The upper hangnail of 2-；Hangnail under 3-；4- internal threaded column；5- tray body；61- suspension；62- internal beam rubber band；7 rubber band holes；
8- primacord hole；9 suspension rubber band buckles；The buckle of 10- internal beam rubber band；11- external thread rod；Back taper disk body K；M- blasthole wall.
Specific embodiment:
The present invention is further described with reference to the accompanying drawings and detailed description.
The blasthole that the present invention is applicable in non-coal mine does not couple cumulative escapement and includes tray body 5 and be located at outside tray body 5
Week includes back taper disk body K and is located at back taper disk body K for blocking the upper hangnail 2 and lower hangnail 3 of hole wall, the tray body 5
Has internal thread internal threaded column 4 on upper surface, which can be entity material quality, be also possible to hollow, back taper
The periphery of shape disk body K is connected with copper sheet 1, and upper hangnail 2 and lower hangnail 3 are connected on 1 outer peripheral surface of copper sheet, the internal threaded column 4
Inner wall is equipped with a suspension rubber band buckle 9, and the rubber band being equipped with below internal threaded column 4 for wearing rubber band is located on back taper disk body
Hole 7, the lower hangnail upper surface are equipped with the buckle 10 to internal beam rubber band, are equipped on the buckle on each lower hangnail surface interior
Beam rubber band 61, the internal beam end of the internal beam rubber band pass through rubber band hole and are connected on suspension rubber band buckle 9, also set on the tray body
There is the primacord hole 8 for wearing primacord.
In the present embodiment, in order to design rationally, above-mentioned suspension rubber band buckle connected by two vertical scale coppers formed turn shape,
Oral area is upward.
In the present embodiment, in order to design rationally, external thread rod 11, the external thread rod table are bolted on above-mentioned internal threaded column
Face is provided with scale from bottom to top, and the scale is using external thread rod bottom as zero graduation line, using 5cm as unit scale, successively
Along shaft marking axially upwards.
In the present embodiment, in order to design rationally, above-mentioned upper hangnail connects shape by two rectangular copper thin slices with lower hangnail
At sharp cone distal, a short side of two rectangular copper thin slices is fixed together, and opposite short side is separately fixed on outside tray body
Zhou Shang, the buckle connect the shape that turns formed by two vertical copper sheets, and oral area is outwardly.
In the present embodiment, in order to design rationally, above-mentioned upper hangnail is staggered 15 ° with lower hangnail circumferencial direction to be arranged.
In the present embodiment, in order to design rationally, above-mentioned internal beam rubber band 62 is threaded through on the buckle on each lower hangnail surface and is formed
Circle generates pretension so as to receive in each lower hangnail, and the internal beam end of internal beam rubber band is placed on suspension rubber band buckle by drawing, interior
The internal beam section of beam rubber band is properly termed as suspension rubber band 61.
In the present embodiment, away from rubber band hole 7 is equipped at central axis 1.5cm on tray body, the rubber band hole is for running through
Rubber band is hung, the suspension rubber band material is rubber, and suppleness is big, is not easy to break.
In the present embodiment, the internal threaded column inner wall is away from setting suspension rubber band buckle 9, the suspension at capital down 2cm
Rubber band buckle is two vertical scale copper compositions, and ductility is strong.
In the present embodiment, the upper hangnail material is copper foil, and ductility is strong, and rigidity is big, convenient for being firmly embedded in hole wall.
In the present embodiment, the internal beam rubber band buckle is located at lower hangnail center 1cm on the upper side, and the internal beam rubber band buckle is two
Vertical scale copper composition, the internal beam rubber band material is rubber, and suppleness is big, is not easy to break.
In the present embodiment, primacord hole 8 is used to run through each section of explosive primacord, each interval primacord hole court
To consistent, convenient for worker's blast charging and interval work.
The present invention is included in non-coal mine and bores using structure of the cumulative escapement in non-coal mine blasthole is not coupled
If blasthole (blasthole formed blasthole wall M), be equipped at intervals with several from bottom hole to aperture in the blasthole and do not couple cumulative interval
Device, the cumulative escapement that do not couple include tray body 5 and are located at 5 periphery of tray body for blocking the upper hangnail 2 of hole wall
With lower hangnail 3, the tray body 5 is including back taper disk body K and is located on the upper surface back taper disk body K spiral shell in tool internal thread
Line column 4, the back taper disk body can be entity material quality, be also possible to hollow, and the periphery of back taper disk body K is connected with copper sheet 1,
Upper hangnail 2 and lower hangnail 3 are connected on 1 outer peripheral surface of copper sheet, and the inner wall of the internal threaded column 4 is equipped with a suspension rubber band buckle 9,
It is located at the rubber band hole 7 being equipped with below internal threaded column 4 for wearing rubber band on back taper disk body, the lower hangnail upper surface is equipped with
To the buckle 10 of internal beam rubber band, be equipped with internal beam rubber band 61 on the buckle on each lower hangnail surface, the internal beam rubber band it is interior
Shu Duan passes through rubber band hole and is connected on suspension rubber band buckle 9, and the primacord for wearing primacord is additionally provided on the tray body
Hole 8；Adjacent in blasthole fill part powder type explosive or bag powder II between cumulative escapement are not coupled and reserve sky
Gas interval III does not couple space between cumulative escapement and is not filled up completely full explosive adjacent.
The blasthole that the present invention is applicable in non-coal mine does not couple cumulative escapement and has several advantages that
1, middle part back taper disk body cone mouth forms sockets for collecting energy downward, and sockets for collecting energy can well gather the explosion energy of each section of powder stick
Collection, then leads down, and the rock boulder yield that can solve blasthole bottom and compartment is high and the problems such as lumpiness is uneven.
2, it is marked with scale on external thread rod matched with internal threaded column, can more accurately determines stem length, makes demolition effect
Reach best.3, existing air-spacer mostly makes polyvinyl chloride plastic material bag expansion fashion realize that airspace is made using inflation
With, usually easily there is situations such as bag body is damaged, utilization rate is relatively low, and the present invention occurs from spacer structure, no this problem,
Utilization rate is high.4, it when the present invention is applied to interval blocking material and powder stick, can be reached a certain level by upper barb structure stifled
Fill in effect.
The blasthole that the present invention is applicable in non-coal mine does not couple the application method of cumulative escapement, comprising the following steps:
Step S1: according to blasting design scheme, drilling device is utilized in designated position, digs out the blasthole of certain inclination angle and depth；
Step S2: whether before powder charge, rechecking in the depth and inclination angle and hole of each blasthole has water；
Step S3: determining the not degree of coupling in blasthole, determines each section of loaded length and Air space length；
Step S4: when powder type explosive or bag powder powder charge, when powder charge reaches a quarter of loaded length, it is put into primacord
Or after igniting primer, 3/4ths powder charge after the completion, it is desirable that suitably loaded length is detected in powder charge process；
Step S5: by the internal threaded column in the external thread rod precession tray body in cumulative escapement, the two is made to be connected to one
It rises；
Step S6: by the relative position of external thread rod high scale mark and blasthole aperture, primacord aperture in tray body is determined
Circumferential position, and the Nonel detonator of igniting primer or primacord are passed through into primacord hole；
Step S7: it according to the Air space length of design, is identified using external thread rod high scale, by what is connect with external thread rod
It pushes away and is put to accurate location under tray body is slow；
Step S8: by the frictional force of upper hangnail and blasthole inner wall in device, rotation external thread rod further gos deep into tray body
Female thread portion, destroy internal screw thread in suspension rubber band buckle, so that tray body is fixed on the corresponding position of blasthole, by external screw thread
Bar screws out the internal threaded column of tray body, extracts blasthole out；
Step S9: repeating the process of step S4 to step S8, until charge segment is completed；
Step S10: will be filled into blasthole in stemming around aperture, and reject the biggish stone of partial size, until ground.
Further, in step s 6, the fixation position by control tray body in blasthole, controls and does not couple in blasthole
Spend and accurately control Air space length.
In the present embodiment, in step s 4, the internal screw thread in the external thread rod precession tray body in cumulative escapement
The length of column is 5-7mm；
Further, in step s 8, rotation external thread rod further gos deep into the female thread portion of tray body until suspension rubber band
Buckle is corrupted such that in tray body that internal beam rubber band is switched to relax by tight state, and lower hangnail is due to internal beam rubber band in tray body
Relaxation and itself existing flexible deformation, during reinstatement, the space by blasthole inner wall is limited, cannot be complete
It restores to the original state, so that lower hangnail periphery and blasthole inner wall are in close contact and generate the pressure of increasing, by lower hangnail and blasthole
Frictional force between wall supports the load-bearing of tray body.
The tray body that the blasthole that the present invention is applicable in non-coal mine does not couple cumulative escapement is in inverted cone shape, so as to form
Sockets for collecting energy, after being on the one hand the explosive initiation below tray body, during detonation wave upwardly propagates, tray body, hangnail and poly-
The concavity reflection that energy cave is formed, is more concentrated at detonation wave to blasthole hole wall and propagates, reduce the boulder yield of ore-rock, it is strong to increase explosion
Degree；On the other hand, after the explosive initiation above tray body, according to sockets for collecting energy principle, the energy near sockets for collecting energy is concentrated, and all
The explosive enclosed keeps original power, and the energy concentrated then just is being used on the ore-rock of broken lower air compartment, reduces
The boulder yield of the ore-rock of the part improves production efficiency, increases economic benefit.
Compared with prior art, the invention has the following advantages: being directed to non-coal mine perron, underground medium-length hole
Etc. in a variety of explosions designs using Uncoincided charge, the complicated construction technique of blasthole Uncoincided charge, to the blasthole not degree of coupling
Controlling it is poor the problems such as, by the application external thread rod and bottom tray body cooperation, utilize the graduated scale of external thread rod
Know accurate control tray body and specifically fix position inside blasthole, passes through the airspace of the fixed control blast hole projectile filling of tray body
Length reaches the not degree of coupling accurately controlled in blasthole, keeps diffusion of the burst stress in hole more uniform, reduces ore-rock
Boulder yield obtains better demolition effect.By the pallet installation between blocking and powder charge, enhances the blocking intensity of blasthole, prevent
The only generation of chongtian mortar reduces slungshot, improves burst safety factor.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of blasthole for being applicable in non-coal mine does not couple cumulative escapement, it is characterised in that: including tray body and be located at support
Disk body periphery is used to block the upper hangnail and lower hangnail of hole wall, and the tray body includes back taper disk body and is located at back taper disk body
Has internal thread internal threaded column on upper surface, the inner wall of the internal threaded column is equipped with a suspension rubber band buckle, in back taper disk
It is located at the rubber band hole being equipped with below internal threaded column for wearing rubber band on body, the lower hangnail upper surface is equipped with to internal beam skin
The buckle of muscle, is equipped with internal beam rubber band on the buckle on each lower hangnail surface, and the internal beam end of the internal beam rubber band passes through rubber band hole
It is connected on suspension rubber band buckle, the primacord hole for wearing primacord is additionally provided on the tray body.
2. a kind of blasthole for being applicable in non-coal mine according to claim 1 does not couple cumulative escapement, it is characterised in that:
The suspension rubber band buckle connects the shape that turns formed by two vertical scale coppers, and oral area is upward.
3. a kind of blasthole for being applicable in non-coal mine according to claim 1 does not couple cumulative escapement, it is characterised in that:
It is bolted with external thread rod on the internal threaded column, the external thread rod surface is provided with scale from bottom to top, other than the scale
Threaded rod bottom is zero graduation line, using 5cm as unit scale, successively along shaft marking axially upwards.
4. a kind of blasthole for being applicable in non-coal mine according to claim 1 does not couple cumulative escapement, it is characterised in that:
The upper hangnail is connected to form sharp cone distal with lower hangnail by two rectangular copper thin slices, a short side of two rectangular copper thin slices
It is fixed together, opposite short side is separately fixed on tray body periphery, and the buckle is connected by two vertical copper sheets to be formed
Turn shape, oral area is outwardly.
5. a kind of blasthole for being applicable in non-coal mine according to claim 1 does not couple cumulative escapement, it is characterised in that:
The upper hangnail is staggered 15 ° with lower hangnail circumferencial direction to be arranged.
6. a kind of blasthole for being applicable in non-coal mine according to claim 1 does not couple cumulative escapement, it is characterised in that:
The internal beam rubber band is threaded through on the buckle on each lower hangnail surface and forms circle, generates pretension so as to receive in each lower hangnail, interior
The internal beam end of beam rubber band is placed on suspension rubber band buckle by drawing.
7. the application method that a kind of blasthole for being applicable in non-coal mine does not couple cumulative escapement, it is characterised in that:
The following steps are included:
Step S1: according to blasting design scheme, drilling device is utilized in designated position, digs out the blasthole of certain inclination angle and depth；
Step S2: whether before powder charge, rechecking in the depth and inclination angle and hole of each blasthole has water；
Step S3: determining the not degree of coupling in blasthole, determines each section of loaded length and Air space length；
Step S4: when powder type explosive or bag powder powder charge, when powder charge reaches a quarter of loaded length, it is put into primacord
Or after igniting primer, 3/4ths powder charge after the completion, it is desirable that suitably loaded length is detected in powder charge process；
Step S5: by the internal threaded column in the external thread rod precession tray body in cumulative escapement, the two is made to be connected to one
It rises；
Step S6: by the relative position of external thread rod high scale mark and blasthole aperture, primacord aperture in tray body is determined
Circumferential position, and the Nonel detonator of igniting primer or primacord are passed through into primacord hole；
Step S7: it according to the Air space length of design, is identified using external thread rod high scale, by what is connect with external thread rod
It pushes away and is put to accurate location under tray body is slow；
Step S8: by the frictional force of upper hangnail and blasthole inner wall in device, rotation external thread rod further gos deep into tray body
Female thread portion, destroy internal screw thread in suspension rubber band buckle, so that tray body is fixed on the corresponding position of blasthole, by external screw thread
Bar screws out the internal threaded column of tray body, extracts blasthole out；
Step S9: repeating the process of step S4 to step S8, until charge segment is completed；
Step S10: will be filled into blasthole in stemming around aperture, and reject the biggish stone of partial size, until ground.
8. a kind of blasthole for being applicable in non-coal mine does not couple the application method of cumulative escapement according to claim 7,
It is characterized in that: in step s 6, by fixation position of the control tray body in blasthole, controlling in blasthole the not degree of coupling and essence
Really control Air space length.
9. a kind of blasthole for being applicable in non-coal mine does not couple the application method of cumulative escapement according to claim 7,
Be characterized in that: in step s 8, rotation external thread rod further gos deep into the female thread portion of tray body until suspension rubber band buckle
It is corrupted such that in tray body that internal beam rubber band is switched to relax by tight state, pine of the lower hangnail due to internal beam rubber band in tray body
It relaxes and itself existing flexible deformation, during reinstatement, the space by blasthole inner wall is limited, and cannot be restored completely
Original state so that lower hangnail periphery and blasthole inner wall are in close contact and generate the pressure of increasing, by lower hangnail and blasthole inner wall it
Between frictional force support the load-bearing of tray body.
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 |
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| 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 |
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| CN109373842A true CN109373842A (en) | 2019-02-22 |
| CN109373842B CN109373842B (en) | 2020-08-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387126A (en) * | 2018-12-18 | 2019-02-26 | 福州大学 | It is a kind of not couple cumulative escapement and its using the structure in non-coal mine blasthole |
| CN110411300A (en) * | 2019-07-31 | 2019-11-05 | 中铁第一勘察设计院集团有限公司 | The disposable multistage underground borehole blasting device of subway blast working |
| 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 |
| 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 |
| CN111366052A (en) * | 2020-04-28 | 2020-07-03 | 山西中煤平朔爆破器材有限责任公司 | Device for isolating and loading explosives by rotating and stretching water-rich deep hole blasting of strip mine and using method thereof |
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| CN109387126A (en) * | 2018-12-18 | 2019-02-26 | 福州大学 | It is a kind of not couple cumulative escapement and its using the structure in non-coal mine blasthole |
| CN110411300A (en) * | 2019-07-31 | 2019-11-05 | 中铁第一勘察设计院集团有限公司 | The disposable multistage underground borehole blasting device of subway blast working |
| 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 |
| CN111366052A (en) * | 2020-04-28 | 2020-07-03 | 山西中煤平朔爆破器材有限责任公司 | Device for isolating and loading explosives by rotating and stretching water-rich deep hole blasting of strip mine and using method thereof |
| 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 |
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