CN107843162A - High inclination-angle blasthole for deep hole blasting blocks non-return device - Google Patents
High inclination-angle blasthole for deep hole blasting blocks non-return device Download PDFInfo
- Publication number
- CN107843162A CN107843162A CN201610831187.9A CN201610831187A CN107843162A CN 107843162 A CN107843162 A CN 107843162A CN 201610831187 A CN201610831187 A CN 201610831187A CN 107843162 A CN107843162 A CN 107843162A
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- China
- Prior art keywords
- blasthole
- return device
- angle
- deep hole
- high inclination
- 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.)
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- 238000005422 blasting Methods 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 239000011499 joint compound Substances 0.000 claims description 17
- 238000005065 mining Methods 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 229910001751 gemstone Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
A kind of high inclination-angle blasthole for deep hole blasting blocks non-return device, including：Upper pipe joint, is arranged between powder column and body, to connect powder column and body, so that the two forms an entirety；Body, require to set more bodys generally according to sealing of hole, and be sequentially connected in a manner of end to end, and body front end termination is connected to the upper pipe joint；Lower pipe connection, it is arranged between any two bodys, for connecting adjacent tubes；Stemming, it is packaged in above-mentioned tubular body, for aiding in blocking blasthole；Check bar, on body, there is certain elastoplasticity, can varicose freely so that the closure non-return device unidirectionally can be stuck in blasthole, when efficiently solving deep hole blasting in high inclination-angle blasthole powder column automatic downslide problem.The closure non-return device production process is simple, easy to operation, safe and reliable, and convenient material drawing, can reuse waste and old resource, has obvious economical and environmentally friendly advantage.
Description
Technical field
It is applied to that low air permeability coal seam explosion is anti-reflection and the deep hole blasting of goaf overhead caving the present invention relates to a kind of
Field, especially a kind of high inclination-angle blasthole applied to deep hole blasting block non-return device.
Background technology
During mining, high gassy and low permeability coal seam gas exceeding limit and actual mining face goaf large area are hanged
Top problem be restrict Safety of Coal Mine Production two big key factors, Advance presplitting explosion be increase gas permeability of coal seam, reduction it is hard
The major measure of top plate.
It is actual according to condition of coal seam occurrence and pit mining, Advance presplitting blasting measures generally have blasthole is deep, inclination angle is big,
The characteristics of powder charge is more, and the sealing material that yellow mud, water stemming and Blast hole plug etc. are commonly used check when blocking high inclination-angle, deep blasting hole is imitated
Fruit is poor, if unnecessarily blasthole closure check measure glides unmanageable powder column problem automatically, can not more ensure sealing of hole matter
Amount.Sealing of hole is ineffective easily to induce punching phenomenon, influences demolition effect, threatens mine safety.
The high inclination-angle blasthole closure check measure for being presently used for deep hole blasting is primarily present problems with：(1) operation blindness
Property it is big, for example glided automatically using powder column in wooden wedge control high inclination-angle blasthole and then easily squeeze off primacord or blow out line, brought
Major safety risks；(2) operation difficulty is big, construction requirement is high, such as using powder column in quick-hardening cement control high inclination-angle blasthole certainly
It is dynamic to glide, then need to carry out cement roll before use damp-proof treatment, be immediately fed into after the processing that need to soak during use in blasthole
Specified location simultaneously consolidates, and operation difficulty is larger, while is limited by each cement roll amount of being sent into, it is difficult to it is larger to adapt to explosive payload
Blasthole.
The content of the invention
Powder column glides problem automatically in high inclination-angle blasthole during in order to efficiently solve deep hole blasting, it is ensured that blasthole sealing matter
Amount, the present invention propose a kind of high inclination-angle blasthole for deep hole blasting and block non-return device, and the closure non-return device is to blasthole
Varying aperture and sealed borehole length change strong adaptability, construction technology is simple, easy to operation, sealing of hole effect is good.
The present invention solves above-mentioned technical problem and uses following technical scheme：
A kind of high inclination-angle blasthole for deep hole blasting blocks non-return device, including：
Body, the body are connected with each other in a manner of end to end, outer tube diameter d2；
Check bar, the check bar have certain elastoplasticity, can varicose freely；
Upper pipe joint, is arranged between the body of front end and powder column, for connecting powder column and body, upper pipe joint front end
Internal diameter is d1；
Lower pipe connection, it is arranged between two neighboring body, it is ensured that adjacent body stable connection；
Stemming, it is packaged in the body, for aiding in sealing of hole.
Further, drilled at a certain distance from away from the body two ends, and boring aperture is slightly larger than check bar diameter,
In order to install check bar.
Further, one end of every body can install one or more check bar.
Further, the total length after each check bar opens completely is equal, and is more than blasthole diameter.
Further, using the body as axis, each check bar is each perpendicular to axis after opening, and two ends arrive
The vertical range of axis is equal.
Further, the inner surface of the lower pipe connection is bonded together by binding agent and the body.
Further, the material of the body includes PVC, and the material of the check bar includes steel.
Further, the body is the pvc pipe of mining mash gas extraction, and the check bar is steel wire.
Further, the material of the stemming can be yellow mud, sand or water stemming.
Further, the front inner diameter d of upper pipe joint1Back end inside diameter can be not equal to.
Compared with prior art, the high inclination-angle blasthole for deep hole blasting of the invention blocks the beneficial effect of non-return device
It is：
(1) this is used for the high inclination-angle blasthole closure non-return device of deep hole blasting mainly by the body equipped with stemming and with one
Fixed plastoelastic check bar composition, it is simple in construction, easily operated, highly reliable；
(2) criticizing in advance for this closure non-return device can be realized by encapsulating stemming in body in advance and installing check bar
Amount makes, and can effectively shorten the sealing of hole time, reduce labor intensity；
(3) any number of body can be connected by lower pipe connection, is needed that the sealing of hole of random length is made according to sealing of hole
Pipe；
(4) it is straight to blasthole by changing pipe diameter and check bar length can realize closure to different pore size blasthole
Footpath has adaptability very strongly；
(5) the closure non-return device can be made of waste and old gas pumping pipe, steel wire or steel strand wires, and materials are few, make
Cost is low, energy-conserving and environment-protective.
Brief description of the drawings
It is more fully described preferred embodiment in conjunction with the accompanying drawings, above-mentioned and other purposes of the invention, feature and excellent
It will definitely become readily apparent from, wherein, in exemplary embodiments of the present invention, the part that identical reference number represents is identical.
Fig. 1 is the closure non-return device schematic diagram for high inclination-angle deep hole blasting powder charge according to exemplary embodiment；
Fig. 2 is along A-A profiles in Fig. 1.
Main Reference label declaration：
1- bodys；2- check bars；The upper pipe joints of 3-；4- lower pipe connections；5- stemmings.
Embodiment
Embodiments of the present invention are explained in more detail below in conjunction with accompanying drawing and preferred embodiment.Although accompanying drawing
In show the preferred embodiments of the present invention, but the present invention may be realized in various forms, it is impossible to the implementation illustrated here
Example is limited.On the contrary, provide these embodiments be in order that the present invention becomes apparent from and completely, and can be by the model of the present invention
Enclose and be intactly communicated to those skilled in the art.
In the description of the invention, as unless otherwise noted, " multiple " are each meant more than or equal to 2.
Fig. 1, Fig. 2 are shown blocks non-return device according to the high inclination-angle blasthole for deep hole blasting of exemplary embodiment,
It includes：Body 1, check bar 2, upper pipe joint 3, lower pipe connection 4 and stemming 5.
The external diameter of body 1 is d2, more bodys 1 are connected with each other by lower pipe connection 4 in a manner of end to end, apart from medicine
The nearest body 1 of post realizes the firm connection with powder column by upper pipe joint 3, drives powder column to head into together when pushing body 1
In borehole.
In order to prevent powder column from being glided automatically in borehole, preferably bored at each both ends equal length of body 1
Multigroup hole is taken, often for more of end arrangement with certain plastoelastic check bar 2, the length after preferable check bar 2 opens completely is big
In blasthole diameter so that powder column is when inserting in blasthole, due to being equipped with the check bar 2 opened on body 1, what check bar 2 opened
Both ends are compressed inwardly, meanwhile, check bar 2 is flared out automatically after being compressed, so that be unidirectionally stuck in can not in blasthole for body 1
Glide, so as to efficiently solve the downslide problem of powder column, ensure that the sealing quality of end, improve blast working operation
Security.
In order to ensure the smooth installation of check bar 2, when being drilled on body 1, aperture should be depending on the diameter of check bar 2；
Meanwhile adjacent two check bars 2 stagger certain distance along body 1, are interfered with avoiding installing during different check bars 2.
In order that the non-return device can effectively play a role, the check bar 2 of equal length is preferably set up, and is ensured
Every check bar 2 opens completely, and the vertical range of two ends to body is equal.
In order to ensure the intensity of the non-return device and toughness, check bar 2 can select steel wire or steel strand wires.
In order to reduce the cost of manufacture of the non-return device, body 1 can use the pvc pipe of waste and old mash gas extraction, so as to
The recycling of waste resource is realized, there is obvious environment protection significance.
In order to shorten the sealed borehole length of blasthole end yellow mud, the encapsulation stemming 5 preferably in body 1, and have concurrently firm inverse
The only effect of bar 2.
Embodiment 1
Blasthole inclination angle is 38 °, blast hole depth 17m, blasthole diameter 75mm, a diameter of 63mm of explosive column, powder charge length
Spend for 10m, sealed borehole length 7m.The high inclination-angle blasthole that the present embodiment is used for deep hole blasting blocks non-return device by mining extraction
5 kinds of pvc pipe, steel wire, upper pipe joint, lower pipe connection and loose yellow mud part compositions of gas, wherein the PVC of mining mash gas extraction
Pipe is arranged to 1m as body 1, the every length of body 1, and one group of steel wire is being drilled through respectively at the every two ends 20cm of body 1
Threading hole, every group of hole be made up of 4 jewel holes, the steel wires that root long degree is 120mm, nominal diameter is 6mm of square crossing installation 2,
The steel wire is arranged on body 1 as check bar 2, and the distance of two ends to the body 1 of every steel wire is equal, in order to the envelope
Stifled non-return device can efficiently control the downslide of powder column.
In the present embodiment, sealed borehole length 7m is to aid in sealing of hole area and blasthole aperture 3m tampings yellow by closure non-return device
Mudding porose area collectively constitutes.In order to reach the purpose of auxiliary sealing of hole, preferably encapsulated in the every body 1 of closure non-return device
Loose yellow mud, and 4 bodys 1 are connected by lower pipe connection 4, so as to form the auxiliary sealing of hole area that a length is 4m, this is loose
Yellow mud is as stemming 5.Powder column and closure non-return device are together headed into blasthole with tamper, non-return device to be blocked is apart from aperture
During 3m stop head into, exit tamper, using automatic hole sealing device or manually load loose yellow mud and consolidate by the way of orifice part
Enfeoffment is real, that is, completes powder charge process.
Embodiment 2
Blasthole inclination angle is 29 °, blast hole depth 37m, blasthole diameter 75mm, a diameter of 63mm of explosive column, powder charge length
Spend for 27m, sealed borehole length 10m.The high inclination-angle blasthole that the present embodiment is used for deep hole blasting blocks non-return device by mining extraction
5 kinds of pvc pipe, steel wire, upper pipe joint, lower pipe connection and loose yellow mud part compositions of gas, wherein the PVC of mining mash gas extraction
Pipe is arranged to 1m as body 1, the every length of body 1, and one group of steel wire is being drilled through respectively at the every two ends 20cm of body 1
Threading hole, every group of hole be made up of 4 jewel holes, the steel wires that root long degree is 120mm, nominal diameter is 6mm of square crossing installation 2,
The steel wire is arranged on body 1 as check bar 2, and the distance of two ends to the body 1 of every steel strand wires is equal, in order to this
Closure non-return device can efficiently control the downslide of powder column.
In the present embodiment, sealed borehole length 10m is to aid in sealing of hole area and blasthole aperture 3m tampings by closure non-return device
Yellow mud sealing of hole area collectively constitutes.In order to reach the purpose of auxiliary sealing of hole, preferably sealed in the every body 1 of closure non-return device
Loose yellow mud is filled, and 7 bodys 1 are connected by lower pipe connection 4, so as to form the auxiliary sealing of hole area that a length is 7m, the pine
Yellow mud is dissipated as stemming 5.Powder column and closure non-return device are together headed into blasthole with tamper, non-return device to be blocked is apart from hole
Stop heading into during mouthful 3m, exit tamper, load using automatic hole sealing device or manually loose yellow mud and by the way of consolidating aperture
Part is sealed in fact, that is, completes powder charge process.
In summary, the high inclination-angle blasthole closure non-return device for deep hole blasting of the preferred embodiment of the present invention mainly has
Body 1 and check bar 2 equipped with stemming 5 form, simple in construction, easily operated, highly reliable；By being sealed in advance in body 1
Breeching mud 5 and install check bar 2 can realize this closure non-return device in advance batch making, when being effectively shortened sealing of hole
Between, reduce labor intensity；Any number of body 1 can be connected by lower pipe connection 4, need to be made according to sealing of hole arbitrarily long
The hole sealing tube of degree；By changing the diameter of body 1 and the length of check bar 2 can complete sealing of hole to different-diameter borehole, blasthole is straight
Footpath changes strong adaptability；The closure non-return device can be made of waste and old gas pumping pipe, steel wire or steel strand wires, materials are few,
Low manufacture cost, energy-conserving and environment-protective.
Providing for above-mentioned technical proposal is intended merely to become apparent from, comprehensively describes embodiments of the present invention, for ability
For the technical staff in domain, application according to the present invention method and principle can easily make various types of improvement or change
Shape, the method described by the above-mentioned specific embodiment of the present invention is not limited solely to, therefore previously described mode is simply preferable, and
Not restrictive meaning.
Claims (9)
1. a kind of high inclination-angle blasthole for deep hole blasting blocks non-return device, it is characterised in that including：
Upper pipe joint, the upper pipe joint front inner diameter d1It is equal to powder column diameter, back end inside diameter is equal to outer tube diameter, sets
Between powder column and body, to connect powder column and body and the two is turned into an entirety；
Body, the body requires to need more generally according to sealing of hole, and is sequentially connected in a manner of end to end, and body is most
Front end is connected to the upper pipe joint；
Check bar, the check bar be arranged on body on, there is certain elastoplasticity, can varicose freely, make the closure check
Device unidirectionally can be stuck in blasthole, and the automatic downslide of powder column is asked in high inclination-angle blasthole during so as to efficiently solve deep hole blasting
Topic；
Lower pipe connection, it is arranged between any two bodys, for connecting adjacent tubes；
Stemming, it is packaged in above-mentioned tubular body, for aiding in blocking blasthole.
2. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 1, it is characterised in that every institute
State the full stemming of body planted agent encapsulation.
3. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 1, it is characterised in that the pipe
Body can connect more bodys to meet any sealed borehole length needs by lower pipe connection.
4. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 1, it is characterised in that every institute
Multigroup check bar can be arranged by stating body, and every group can arrange one or more check bars of arranged crosswise, each check bar are opened completely
Identical length after opening etc..
5. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 1, it is characterised in that be arranged in
The vertical range of two ends to body is equal after each check bar on the body opens completely.
6. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 1, it is characterised in that the big gun
The material of mud includes yellow mud, sand or water stemming.
7. the high inclination-angle blasthole closure non-return device according to claim any one of 1-5 for deep hole blasting, its feature exist
In the material of the body includes PVC；The material of the check bar includes steel.
8. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 6, it is characterised in that the big gun
Mud is yellow mud.
9. the high inclination-angle blasthole closure non-return device for deep hole blasting according to claim 7, it is characterised in that the pipe
Body is the pvc pipe of mining mash gas extraction, and the check bar is steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831187.9A CN107843162A (en) | 2016-09-19 | 2016-09-19 | High inclination-angle blasthole for deep hole blasting blocks non-return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610831187.9A CN107843162A (en) | 2016-09-19 | 2016-09-19 | High inclination-angle blasthole for deep hole blasting blocks non-return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107843162A true CN107843162A (en) | 2018-03-27 |
Family
ID=61657256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610831187.9A Pending CN107843162A (en) | 2016-09-19 | 2016-09-19 | High inclination-angle blasthole for deep hole blasting blocks non-return device |
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| Country | Link |
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| CN (1) | CN107843162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023932A (en) * | 2019-12-02 | 2020-04-17 | 中国铁建重工集团股份有限公司 | Compound blast hole blocking device with pipe body provided with sealing ring and filled with filler |
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| CN202853507U (en) * | 2012-10-23 | 2013-04-03 | 安徽理工大学 | Blasting explosive grain with anti-sliding mechanism |
| CN203116624U (en) * | 2013-01-31 | 2013-08-07 | 西安科技大学 | Explosive fixing device for roof deep hole blasting |
| CN203702070U (en) * | 2013-12-30 | 2014-07-09 | 平顶山天安煤业股份有限公司 | Coal mine low pumping lane borehole slag-returning sealing apparatus |
| CN204188086U (en) * | 2014-10-14 | 2015-03-04 | 河南大有能源股份有限公司常村煤矿 | A kind of deep hole automatic hole-cleaning charge sleeve |
| CN205403626U (en) * | 2016-02-29 | 2016-07-27 | 内蒙古伊泰煤炭股份有限公司 | Working face deep hole blasting presplitting porthole holdback |
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2016
- 2016-09-19 CN CN201610831187.9A patent/CN107843162A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202041134U (en) * | 2011-04-22 | 2011-11-16 | 陶元 | High inclination angle water-bearing blasthole sealing structure by adopting forced caving of hard top plate of coalmine |
| CN202853507U (en) * | 2012-10-23 | 2013-04-03 | 安徽理工大学 | Blasting explosive grain with anti-sliding mechanism |
| CN203116624U (en) * | 2013-01-31 | 2013-08-07 | 西安科技大学 | Explosive fixing device for roof deep hole blasting |
| CN203702070U (en) * | 2013-12-30 | 2014-07-09 | 平顶山天安煤业股份有限公司 | Coal mine low pumping lane borehole slag-returning sealing apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023932A (en) * | 2019-12-02 | 2020-04-17 | 中国铁建重工集团股份有限公司 | Compound blast hole blocking device with pipe body provided with sealing ring and filled with filler |
| CN111023932B (en) * | 2019-12-02 | 2022-03-25 | 中铁十八局集团有限公司 | Compound blast hole blocking device with pipe body provided with sealing ring and filled with filler |
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