CN206670477U - The axially demolition set of laddering secondary efficiently demolition set - Google Patents
The axially demolition set of laddering secondary efficiently demolition set Download PDFInfo
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- CN206670477U CN206670477U CN201720041214.2U CN201720041214U CN206670477U CN 206670477 U CN206670477 U CN 206670477U CN 201720041214 U CN201720041214 U CN 201720041214U CN 206670477 U CN206670477 U CN 206670477U
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Abstract
The utility model discloses a kind of demolition set of the laddering secondary efficiently demolition set in axial direction,Including explosive cartridge,One-level explosion main body and two level explosion main body are sequentially arranged in explosive cartridge and the afterbody of one-level explosion main body and two level explosion body front end corresponding matching,Wherein the explosive cartridge is made of plastic material,Both sides are double layer hollow structure,Hollow sandwich is vacuum during original state,Top is one layer of sealing plate,Bottom blow-by and internal thread is set on the inside of explosive cartridge,In hollow sandwich bottom side, water intaking valve is set,In hollow sandwich top side ventilating cover,Uniaxial pressure air outlet valve one end connects with ventilating cover,The other end stretches out outside and connected with extraneous air by airway tube,The utility model mainly utilizes short-delay blasting,Play bottom blasting technique,Water spacer blasting technique is designed,Reduce blasting vibration,Reduce bulk amount,Reduce explosive specific charge amount and the concentration of dust,Increase the utilization rate of borehole,Increase demolition effect,With shotfiring safety.
Description
Technical field
It the utility model is related to blasting technique field, the explosion of especially a kind of laddering secondary efficiently demolition set in axial direction
Device.
Background technology
At present, during the tunnel construction in China, mechanical drivage does not have large-scale use also, does not reach flourishing horizontal,
Blasting technique especially drilling and blasting method is the major way of China's tunnel construction, but the utilization rate of borehole is low in the driving in tunnel,
Demolition effect unobvious, low wait a moment of tunnelling footage efficiency is main difficulty, and difficulty of construction is very big.
The mine of complex geologic conditions is particularly in the process of coal mining in China, digging laneway and seam mining constantly pass through
Rock mass and the coal seam of special thickness can be often run into, because existing demolition set explosive energy utilization rate is low, blast hole utilization factor is low to wait single
Explosion makes the tunnelling footage in tunnel slow with progress, and demolition effect is poor, and the explosive of blasthole bottom is made to the rock mass in axial deep
Into action effect unobvious, it is impossible to further improve tunneling process in depth.The synthesis of the other hard thick gas top coal layer of spy
In exploitation, the stress how allowed in coal seam redistributes, and makes to form crack in coal seam, improves the methane drainage and utilization project rate of gas, subtract
Few production cost.
Utility model content
Technical problem to be solved in the utility model is：A kind of the quick-fried of the laddering secondary efficiently demolition set in axial direction is provided
Breaking device, low to solve the blast hole utilization factor of existing demolition set, demolition effect is poor.
What the utility model was realized in：
A kind of demolition set of the laddering secondary efficiently demolition set in axial direction, including explosive cartridge, one-level explosion main body and two
Level explosion main body is sequentially arranged in explosive cartridge and the afterbody of one-level explosion main body and two level explosion body front end corresponding matching, its
In the explosive cartridge be made of plastic material, both sides are double layer hollow structure, and hollow sandwich is vacuum during original state, and top is
One layer of sealing plate, bottom blow-by and sets internal thread on the inside of explosive cartridge, and water intaking valve is set in hollow sandwich bottom side,
In hollow sandwich top side ventilating cover, uniaxial pressure air outlet valve one end is connected with ventilating cover, and the other end is stretched out by airway tube
Outside simultaneously connects with extraneous air.
In a kind of foregoing laddering secondary efficiently demolition set of demolition set in axial direction, the one-level explosion main body includes one
Level threaded base, one-level exploding wire, one-level lead thunderclaps pipe, one-level medicine cover, steel pipe, rigidity isolation block, the first powder chamber and first
Cumulative powder column, two level explosion main body include two level threaded base, spring, striker, and two level is ignited detonator, two level det-cord, delay
Explosive, two level explosion main body cover and two level cumulative powder column, first powder chamber is located in the middle part of explosive cartridge, in the first explosive
The full first cumulative powder column of indoor filling, step of threads base and the step of threads base explosive cartridge are set in the first powder chamber bottom
Mutual cooperation is tightened, and one-level medicine cover, one-level exploding wire one end connection one-level medicine cover are set in the first cumulative powder column, and the other end is worn
Cross step of threads base and stretch out explosive cartridge, funnel shaped one-level medicine cover, outside dimension and are set at the top of the first powder chamber
The consistent steel pipe of one powder chamber along while withstand on one-level medicine cover along while on, in steel pipe set rigidity isolation block and this rigidly completely cut off
Block forms space one with one-level medicine cover, and the two level explosion main body cover of bullet shaped is arranged in the middle part of explosive cartridge, in two level explosion master
The full two level cumulative powder column of filling in body case, two level threaded base, the two level screw thread are set in two level explosion main body cover bottom
Base end face is held out against each other with steel pipe along side, and the two level threaded base, steel pipe and rigidity isolation block form space two, in two level
Delay explosive is set in cumulative powder column, and interior setting two level is ignited detonator in the middle part of two level threaded base, and two level det-cord one end connects
Connecing delay explosive, other end connection two level is ignited detonator, and shallow slot is set in the two level threaded base that two level is ignited below detonator,
Spring on spring sets striker and the striker and two level is ignited detonator vertical alignment, the striker across in shallow slot and fixed
Plate is hit less than two level threaded base bottom surface and in space two on bottom.
In a kind of foregoing laddering secondary efficiently demolition set of demolition set in axial direction, chuck is set in steel pipe inside middle portion
And rigidity isolation block upper end avoids rigidly completely cutting off block movement during inoperative with chuck clamping, improves security.
By adopting the above-described technical solution, compared with prior art, the utility model mainly utilizes short-delay blasting,
Play bottom blasting technique, water spacer blasting technique is designed, and reduces blasting vibration, reduces bulk amount, reduce explosive specific charge amount and
The concentration of dust, the utilization rate of borehole is increased, increase demolition effect, and shotfiring safety.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is operation chart when the utility model borehole blasting device is arranged on attached blasthole；
Accompanying drawing 3 is application schematic diagram of the present utility model.
Embodiment
Embodiment of the present utility model：A kind of blasting method of the laddering secondary efficiently demolition set in axial direction, this method are
Explosive cartridge is arranged in attached blasthole and attached blasthole is completely cut off with outside air, and by being set gradually in explosive cartridge
One-level explosion main body and two level explosion main body, one-level explosion main body carry out initial explosion, rock mass crack, rock loosening is occurred
Produce huge Explosive impact ripple Deng, one-level explosion main body and act on and promote that two level explosion main body is progressive to be pierced in deep rock mass,
It is delayed in two level explosion main body under the effect of explosive, produces the secondary progressive explosion of Millisecond delay.
Realize after installation explosive cartridge in attached blasthole the specific method of isolation be made of the explosive cartridge using plastic cement material, and
Its both sides is double layer hollow structure, and top is one layer of sealing plate, bottom blow-by, sets and intakes in hollow sandwich bottom side
Valve, in hollow sandwich top side ventilating cover, and uniaxial pressure air outlet valve is set between ventilating cover and hollow sandwich, in inoperative
When hollow sandwich in be vacuum, after being housed to attached blasthole, connected in doubling hollow structure and noted with water intaking valve using compression pump 22
Enter water, in the case where hydraulic pressure acts on, the meeting expanse of explosive cartridge inside and outside wall, until all closing attached blasthole, break off drilling and outer
The air contact on boundary, for avoid compression pump 22 be pressed into water after have gas enter explosive cartridge in influence demolition effect, right side top has
It is uniaxial pressure air outlet valve inside ventilating cover, uniaxial pressure air outlet valve connection airway tube, extends in air, explosion cylinder pressure
Excess pressure amount can be discharged when reaching level pressure and keeps definite value, stop press-in water when trickle in airway tube.
The method for realizing one-level explosion main body and two level explosion main body Millisecond delay explosion is set in one-level explosion main body
One is in funnel shaped one-level medicine cover, and the steel pipe that rigidity isolation block is set in one is installed in one-level medicine cover upper end, and the two level is quick-fried
On broken main body installation steel pipe, wherein rigidity isolation block is corresponding with the striker of two level explosion main body, when one-level in body in one-level explosion
When leading quick-fried lead and being connected and ignite with the one-level medicine cover of the first powder chamber bottom, it is set to have produced the effect of bottom explosion, one
Level medicine cover mainly produces cavity blasting shock wave in infundibulate, and shock wave is in one-level medicine cover and Jie in the space one of rigidity isolation block
Propagated in matter, isolation block can be made to produce kinetic energy and prevent induced detonation from producing, second level explosion main body is impacted, in the effect of plastic base
Lower two level explosion main body will not be i.e. quick-fried, touches the striker for having spring to connect, and hot localised points is produced, by two level det-cord) ignite and prolong
When explosive, delay can produce short-delay time, so as to which two level explosion main body is exploded, produce short-delay blasting effect.
It is that the two level explosion main body cover uses bullet shaped structure to realize the secondary progressive blasting method of two level explosion main body,
Loosening, seminess can be produced after one-level explosion main body explosion to rock mass, and the generation of one-level medicine cover is poly- in the one-level explosion main body
The immense pressure of energy explosion wave simultaneously acts on rigidity isolation block, and the rigidity isolation block fans dead huge kinetic energy and hits two level explosion
Body base can make two level explosion main body pierce the rock mass with crack or loosening, and the delay explosive in two level explosion main body
In the presence of realize secondary blasting, the depth into rock mass may be different because of the hardness of rock mass, can be according to specific work
It is that effect becomes apparent from that Cheng Jinhang, which calculates research one-level explosion main body and the explosive charge of two level explosion main body, but as long as two level explosion master
Body, which can enter rock mass, to produce great function to deep rock mass, because producing elementary errors in the presence of delay explosive (18), so as to
Carry out subsequent explosion.
Two level explosion main body has fine and close threaded connection with base, prevents rigidity isolation block hits from making two level explosion bulk deformation
It is i.e. quick-fried, play cushioning effect.Rigidity isolation block act as prevent induced detonation from producing, steel pipe and rigidity isolation block it is recyclable repeat profit
With, carry out subsequent explosion, one-level blast it is similar with common demolition effect, mainly subsequent explosion under equal explosive charge,
The explosive effect of the present apparatus is more preferable, and the style of work becomes apparent from multiple blastholes together
The demolition set of the laddering secondary efficiently demolition set in a kind of axial direction formed according to the above method, such as accompanying drawing institute
Show, including explosive cartridge 21, one-level explosion main body and two level explosion main body is sequentially arranged in explosive cartridge 21 and one-level explosion main body
Afterbody and two level explosion body front end corresponding matching, the wherein explosive cartridge 21 is made of plastic material, and both sides is in double-deck
Hollow structure, hollow sandwich is vacuum during original state, and top is one layer of sealing plate, bottom blow-by and is set in the inner side of explosive cartridge 21
Internal thread is put, water intaking valve 7 is set in hollow sandwich bottom side, the ventilating cover 9 in hollow sandwich top side, uniaxial pressure goes out
The one end of air valve 8 connects with ventilating cover 9, and the other end stretches out outside by airway tube 11 and connected with extraneous air.
Wherein the one-level explosion main body includes step of threads base 1, one-level exploding wire 2, and one-level leads thunderclaps pipe 3, one-level medicine
Cover 4, steel pipe 5, rigidity completely cut off block 6, and the first powder chamber 10 and the first cumulative powder column 12, two level explosion main body include two level screw thread bottom
Seat 13, spring 14, striker 15, two level are ignited detonator 16, two level det-cord 17, and be delayed explosive 18, two level explosion main body cover 19
With two level cumulative powder column 20, first powder chamber is located at positioned at the middle part of explosive cartridge 21, the filling full first in the first powder chamber 10
Cumulative powder column 12, step of threads base 1 and the phase interworking of 1 explosive cartridge of step of threads base 21 are set in the bottom of the first powder chamber 10
Conjunction is tightened, and one-level medicine cover 4 is set in the first cumulative powder column 12, the one end of one-level exploding wire 2 connection one-level medicine cover 4, the other end is worn
Cross step of threads base 1 and stretch out explosive cartridge 21, funnel shaped one-level medicine cover 4, outer diameter ruler are set at the top of the first powder chamber 10
The very little steel pipe 5 consistent with the first powder chamber 10 along while withstand on one-level medicine cover 4 along while on, rigidity isolation block 6 is set in the steel pipe 5
And this rigidly completely cuts off block 6 and forms space one with one-level medicine cover 4, the two level explosion main body cover 19 of bullet shaped is arranged on explosive cartridge 21
Middle part, the full two level cumulative powder column 20 of filling, is set in the bottom of two level explosion main body cover 19 in two level explosion main body cover 19
Two level threaded base 13, the bottom surface of two level threaded base 13 are held out against each other with steel pipe 5 along side, and two level threaded base 13, the steel
Pipe 5 and rigidity isolation block 6 form space two, delay explosive 18 are set in two level cumulative powder column 20, in two level threaded base 13
Two level is set to ignite detonator 16 in middle part, the one end of two level det-cord 17 connection delay explosive 18, other end connection two level is ignited thunder
Pipe 16, sets shallow slot in the two level threaded base 13 that two level is ignited below detonator 16, spring 14 across in shallow slot and fixed,
Set striker 15 and the striker and two level to ignite the vertical alignment of detonator 16 on spring, plate is hit less than two on the bottom of striker 15
The level bottom surface of threaded base 13 simultaneously in the space two, the inside middle portion of steel pipe 5 set chuck 30 and this rigidly isolation upper end of block 6 with
The clamping of chuck 30, which avoids rigidly completely cutting off block 6 during inoperative, moves.
The above method and device are applied to a kind of blasting method of the efficiently explosion of demolition set, and this method passes through drilling point
Not Xing Cheng explosion main armament hole and attached blasthole, the attached blasthole is arranged on around explosion main armament hole, and abundance is put into main armament hole
Explosive, place demolition set in attached blasthole, using short-delay blasting, make main armament hole elder generation's detonation in rock around
Body, demolition effect can be produced to deep rock mass, that is, produce rock-mass relaxing, crackle and change of stress field, it is then attached around main armament hole
Category blasthole is detonated successively, can be completed by the two level explosion main body of demolition set in attached blasthole axially in progressive deep rock mass
Blasting work.
Wherein the main armament hole depth is more than attached blast hole depth, and general main borehole depth can be more than 2/3 two level explosion master
The length of phosphor bodies, it can also be calculated according to specific project situation to determine the depth of the dosage of explosion main body explosive and borehole
Size is spent, the method for ignition by placing demolition set in attached blasthole is the one-level explosion master by being arranged in demolition set
Body carries out initial explosion, makes crack occurs in rock mass, rock loosens etc., and one-level explosion main body produces huge Explosive impact ripple effect simultaneously
Promote the two level explosion main body for being close to one-level explosion body tail section and being arranged in demolition set is progressive to pierce in deep rock mass,
Under the effect of delay explosive (18), the subsequent explosion of Millisecond delay is produced.
A kind of blasting arrangement of the efficiently explosion of demolition set formed according to the above method, as shown in drawings, including
The geology part 25 of required explosion, main armament hole 26 is set on the geology part 25 of required explosion, around main armament hole 26 successively
Attached blasthole 23 is set, the explosive 27 in main armament hole 26, demolition set 28 is set in attached blasthole 23, and pass through ignition
Main armament hole 26 and attached blasthole 23 are together in series by line 29 successively.
Wherein the demolition set 29 includes explosive cartridge 21, and one-level explosion main body and two level explosion main body are sequentially arranged at explosion
In cylinder 21 and one-level explosion main body afterbodys and two level explosion body front end corresponding matching.
When specifically used
The explosive of abundance is first put in main blast hole, attached blast hole is put into the present apparatus, and leading quick-fried lead with one connects
Come, make main armament hole first quick-fried using short-delay blasting, acting on surrounding rock body makes deep rock mass produce loosening, crack, change of stress field
Deng, then around attached blasthole detonate successively, time sequencing one<Two<Three<Four, the demolition effect of secondary blasthole and main armament hole
Effect is basically identical.It is small with dosage, the characteristics of demolition effect is good, and cost is low.
This demolition set is put into borehole, is pressed into water by one-way water inlet valve 7, is expanded explosive cartridge, until borehole is sealed
Close, break off air contact in drilling and extraneous, form water spacer explosion, light one-level exploding wire, cause in the first powder chamber
The blast of the one-level medicine cover of bottom, makes cumulative powder column be exploded since bottom, has produced the effect of bottom explosion；One-level explosion main body
Demolition effect and driving speed can be improved by quoting the principle of bottom hole explosion, and shotfiring safety increase, rock mass ambient side is by water
Detonation is coupled, hard force is uniformly distributed, and sillar is small and more uniform more rule, and demolition effect is good, while to surrounding rock body
Stress Field Distribution, rock mass structure produces great function, loosens and crack etc. is its performance.It is right after one-level explosion main body explosion
The certain action effect of rock mass, there is phenomena such as crack, loosening, the immense pressure of cavity blasting shock wave is in one-level medicine cover
Completely cut off with rigidity in the space one between block and propagated in medium (air), shock rushes it in rigidly completely cutting off block
The energy for hitting ripple is converted into the huge kinetic energy of isolation block.Isolation block can break through in steel pipe the kick for fixing initial position, and hit
Two level explosion main body is hit, is made in its progressive drilling crack or relaxed rockmass.Two level explosion main body has the screw thread of densification with base
Connection, base material are that plastic material plays a part of buffering, prevents two level explosion main body from being exploded immediately by collision deformation, because
Elementary errors is produced in the presence of delay explosive, subsequent explosion is carried out in the rock mass in deep, short-delay blasting effect is produced, can reduce and shake
Dynamic effect slungshot is reduced, and explosive energy utilization rate is high, and blast hole utilization factor is high and has effectiveness in vibration suppression.
The description of such scheme is the utility model for being understood that and using for ease of those skilled in the art,
Person skilled in the art obviously can easily make various modifications to embodiment, and therefore, the utility model is unlimited
In above-mentioned real scheme, those skilled in the art do not depart from what the utility model category was made according to method of the present utility model
Improve and modification all should be within the scope of protection of the utility model.
Claims (3)
1. a kind of demolition set of the laddering secondary efficiently demolition set in axial direction, including explosive cartridge (21), it is characterised in that：One-level
Explosion main body and two level explosion main body are sequentially arranged in explosive cartridge (21) and the afterbody of one-level explosion main body and two level explosion master
Body front end corresponding matching, the wherein explosive cartridge (21) are made of plastic material, and both sides are double layer hollow structure, during original state
Hollow sandwich is vacuum, and top is one layer of sealing plate, bottom blow-by and the setting internal thread on the inside of explosive cartridge (21), hollow
Interlayer bottom side sets water intaking valve (7), in hollow sandwich top side ventilating cover (9), uniaxial pressure air outlet valve (8) one end with
Ventilating cover (9) connects, and the other end stretches out outside and connected with extraneous air by airway tube (11).
A kind of 2. demolition set of the laddering secondary efficiently demolition set in axial direction according to claim 1, it is characterised in that：Institute
Stating one-level explosion main body includes step of threads base (1), one-level exploding wire (2), and one-level leads thunderclaps pipe (3), one-level medicine cover (4),
Steel pipe (5), rigidity completely cut off block (6), and the first powder chamber (10) and the first cumulative powder column (12), two level explosion main body include two level spiral shell
Line base (13), spring (14), striker (15), two level are ignited detonator (16), two level det-cord (17), delay explosive (18), and two
Level explosion main body cover (19) and two level cumulative powder column (20), first powder chamber are located at positioned at explosive cartridge (21) middle part, the
The full first cumulative powder column (12) of filling in one powder chamber (10), step of threads base (1) is set in the first powder chamber (10) bottom
And step of threads base (1) explosive cartridge (21) is cooperated and tightened, and one-level medicine cover is set in the first cumulative powder column (12)
(4), one-level exploding wire (2) one end connection one-level medicine cover (4), the other end is through step of threads base (1) and stretches out explosive cartridge
(21) funnel shaped one-level medicine cover (4), is set at the top of the first powder chamber (10), and outside dimension and the first powder chamber (10) are consistent
Steel pipe (5) along while withstand on one-level medicine cover (4) along while on, set in the steel pipe (5) rigidity isolation block (6) and this rigidly completely cut off
Block (6) forms space one with one-level medicine cover (4), and the two level explosion main body cover (19) of bullet shaped is arranged in explosive cartridge (21)
Portion, the full two level cumulative powder column (20) of filling in two level explosion main body cover (19), in two level explosion main body cover (19) bottom
Two level threaded base (13) is set, and two level threaded base (13) bottom surface is held out against each other with steel pipe (5) along side, and the two level screw thread
Base (13), steel pipe (5) and rigidity isolation block (6) form space two, and delay explosive is set in two level cumulative powder column (20)
(18), in the middle part of the two level threaded base (13) in set two level to ignite detonator (16), the connection delay of two level det-cord (17) one end
Explosive (18), other end connection two level are ignited detonator (16), are ignited the two level threaded base (13) below detonator (16) in two level
Upper setting shallow slot, spring (14) set striker (15) on spring and the striker ignite with two level across in shallow slot and fixed
Detonator (16) vertical alignment, hitting plate less than two level threaded base (13) bottom surface and being located at space two on striker (15) bottom
It is interior.
A kind of 3. demolition set of the laddering secondary efficiently demolition set in axial direction according to claim 2, it is characterised in that：
When steel pipe (5) inside middle portion sets chuck (30) and rigidity isolation block (6) upper end avoids inoperative with chuck (30) clamping
Rigidity isolation block (6) is mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720041214.2U CN206670477U (en) | 2017-01-13 | 2017-01-13 | The axially demolition set of laddering secondary efficiently demolition set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720041214.2U CN206670477U (en) | 2017-01-13 | 2017-01-13 | The axially demolition set of laddering secondary efficiently demolition set |
Publications (1)
| Publication Number | Publication Date |
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| CN206670477U true CN206670477U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720041214.2U Withdrawn - After Issue CN206670477U (en) | 2017-01-13 | 2017-01-13 | The axially demolition set of laddering secondary efficiently demolition set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839911A (en) * | 2017-01-13 | 2017-06-13 | 贵州大学 | The blasting method of the laddering secondary efficient demolition set in axial direction and device |
| CN109579626A (en) * | 2019-01-28 | 2019-04-05 | 贵州大学 | It is a kind of to be convenient for sealed explosive cartridge |
| CN109708547A (en) * | 2019-01-18 | 2019-05-03 | 中国矿业大学(北京) | A kind of surface mine presplit blasting means for loading |
| CN115127414A (en) * | 2022-07-19 | 2022-09-30 | 中国人民解放军陆军工程大学 | Blasting perforation device based on rod jet flow and explosive forming shot |
-
2017
- 2017-01-13 CN CN201720041214.2U patent/CN206670477U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839911A (en) * | 2017-01-13 | 2017-06-13 | 贵州大学 | The blasting method of the laddering secondary efficient demolition set in axial direction and device |
| CN106839911B (en) * | 2017-01-13 | 2018-10-19 | 贵州大学 | The blasting method of axial progressive secondary efficient demolition set and device |
| CN109708547A (en) * | 2019-01-18 | 2019-05-03 | 中国矿业大学(北京) | A kind of surface mine presplit blasting means for loading |
| CN109579626A (en) * | 2019-01-28 | 2019-04-05 | 贵州大学 | It is a kind of to be convenient for sealed explosive cartridge |
| CN115127414A (en) * | 2022-07-19 | 2022-09-30 | 中国人民解放军陆军工程大学 | Blasting perforation device based on rod jet flow and explosive forming shot |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171124 Effective date of abandoning: 20181019 |
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