CN109506526A - A kind of coal mine roof plate deep hole presplitting directional blasting cumulative pipe device - Google Patents
A kind of coal mine roof plate deep hole presplitting directional blasting cumulative pipe device Download PDFInfo
- Publication number
- CN109506526A CN109506526A CN201811594967.1A CN201811594967A CN109506526A CN 109506526 A CN109506526 A CN 109506526A CN 201811594967 A CN201811594967 A CN 201811594967A CN 109506526 A CN109506526 A CN 109506526A
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- China
- Prior art keywords
- binding energy
- tube
- energy tube
- coal mine
- deep hole
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- 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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Links
- 230000001186 cumulative effect Effects 0.000 title claims abstract description 42
- 238000005422 blasting Methods 0.000 title claims abstract description 23
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 6
- 239000002360 explosive Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
- F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of coal mine roof plate deep hole presplitting directional blasting cumulative pipe device, including binding energy tube, cumulative pipe connection, binding energy tube positioning device, primacord, the binding energy tube includes second binding energy tube of several first binding energy tubes and one end；First binding energy tube and second binding energy tube include tube body, symmetrical grooving there are two being set on the outside of the tube body, the upper/lower terminal of the tube body of first binding energy tube and second binding energy tube is respectively equipped with several to location hole is worn, and one end of the tube body of second binding energy tube is additionally provided with one of card slot.Tube wall is not cut through leakage medicine problem when can solve binding energy tube powder charge, and can solve the anti-twisting property of binding energy tube by binding energy tube two sides grooving；Cumulative pipe connection can guarantee that explosive loading is continuous in multiple binding energy tubes, and can guarantee that the both sides grooving of every binding energy tube is distinguished point-blank, to guarantee the presplitting effect of top plate.
Description
Technical field
The present invention relates to coal mining fields, and in particular to fills to a kind of coal mine roof plate deep hole presplitting directional blasting binding energy tube
It sets.
Background technique
Coal mine is caving in formula recovery process, falls insufficient close to next work face goaf edge top plate Mao, non-Mao is fallen
Top plate form the outstanding top of top plate in mined out area edge, the outstanding top of top plate forms top plate to the tunnel of next working face and two sides coal column
Rotational pressure causes tunnel and two sides ckainuall pressure and deformation to increase, increases roadway support difficulty, influence tunnel
Using safe.
In order to mitigate the top plate rotational pressure that the outstanding top of top plate forms tunnel and ckainuall, need along goaf side
The outstanding top of certain altitude range is cut and is fallen by edge.The altitude range for cutting top is related to working seam thickness and Roof rock feature, cuts
The altitude range on top generally requires more than ten meters to tens meters.
Top plate deep hole presplitting directional blasting is the effective means for cutting top, and top plate deep hole presplitting directional blasting aperture is downward, is needed
The features such as multiple binding energy tube connections, the splitting direction of each binding energy tube is consistent, existing binding energy tube has the following problems:
1. now generally using cumulative special construction using energy-gathering device or in binding energy tube two sides joint-cutting or drilling, use being special
The binding energy tube of cumulative structure is processed complicated；Using two sides joint-cutting or the binding energy tube of drilling in the blasting charge in binding energy tube, exist
Explosive problem is leaked out of joint-cutting or drilling；
2. not can effectively solve installation binding energy tube, due to gravity binding energy tube downslide problem；
3. not can effectively solve placed in the middle problem of the binding energy tube in drilling, cause the grooving of each binding energy tube not straight at one
On line, top plate presplitting effect is bad；
4. not can effectively solve the problem of grooving is point-blank after multiple binding energy tube connections, top plate presplitting is caused to imitate
Fruit is bad；；
5. it is discontinuous to be possible to generation powder charge when explosion between multiple binding energy tubes, cause explosive in drilling top binding energy tube residual
Quick-fried problem.
Summary of the invention
For the deficiency of binding energy tube used in top plate deep hole presplitting directional blasting and demolition set, the object of the present invention is to provide
One kind being suitable for top plate deep hole presplitting directional blasting cumulative pipe device, specific as follows:
A kind of coal mine roof plate deep hole presplitting directional blasting cumulative pipe device, including binding energy tube, cumulative pipe connection, cumulative
Pipe positioning device, primacord, the binding energy tube include several first binding energy tubes and second binding energy tube；First binding energy tube
Include tube body with second binding energy tube, set on the outside of the tube body there are two symmetrical grooving, first binding energy tube and
The upper/lower terminal of the tube body of second binding energy tube be respectively equipped with it is several to wearing location hole, second binding energy tube
One end of the tube body is additionally provided with one of card slot.
Optionally, the cumulative pipe connection includes circular sleeve, be equipped in the circular sleeve circumferential protrusion and with
The grooving cooperates longitudinally convex.
Optionally, the binding energy tube positioning device includes described in the positioning wire for wearing location hole cooperation with described pair and fixation
The card of positioning wire.
It optionally, further include binding energy tube orienting device, the binding energy tube orienting device includes connecting rod and clamp sleeve；Institute
Stating clamp sleeve includes cylinder, and described cylinder one end is equipped with the clamp cooperated with the card slot, and the other end is equipped with to be connected with connecting rod
The connector connect, the connecting rod are additionally provided with markings.
Optionally, the tube body of first binding energy tube and the second binding energy tube is that fire-retardant, antistatic PVC round tube is made.
Optionally, the tube body is long 1000mm-2000mm, fire-retardant, the antistatic PVC of Φ 30-60mm, wall thickness 2-5mm
Round tube；The wide 4-6mm of grooving, depth h=s- δ, s are tube body wall thickness, and δ is that grooving does not cut through part, δ thickness 0.3mm~
5mm；The number of the location hole is four；The groove width 5mm of the card slot, groove depth 20mm, at an angle of 90 with the grooving.
Optionally, the long 5mm-10mm of the circular sleeve, wall thickness 2-5mm, internal diameter are 0.5- bigger than the internal diameter of the tube body 11
1mm；Circumferential raised the thickness 1-2mm, height of projection 3-5mm.
Optionally, the positioning wire is No. 8 steel wires.
Optionally, the internal diameter of the cylinder is 0.5mm bigger than the internal diameter of the tube body, wall thickness 2-5mm, length 100mm.
Optionally, the connecting rod is formed by connecting by the round bar of several long 1500-2000mm, is all provided on each round bar
There are markings.
The utility model has the advantages that
1. tube wall is not cut through leakage medicine problem when can solve binding energy tube powder charge, and can solve poly- by binding energy tube two sides grooving
The anti-twisting property of energy pipe；
2. cumulative pipe connection can guarantee that explosive loading is continuous in multiple binding energy tubes, and can guarantee every binding energy tube
Both sides grooving is distinguished point-blank, to guarantee the presplitting effect of top plate；
3. cumulative pipe fixing device can guarantee that binding energy tube does not glide when installing binding energy tube and binding energy tube occupies in drilling
In；
4. binding energy tube orienting device can guarantee that binding energy tube does not rotate when toward drilling bottom push binding energy tube, guarantees binding energy tube
The two sides grooving for being installed in place rear every binding energy tube is respectively point-blank and consistent with drilling line.
5. solve the connectivity problem of explosive in binding energy tube and binding energy tube, using primacord, prevent explosive from residual quick-fried ask occur
Topic.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the first binding energy tube；
Fig. 2 is the side view of the first binding energy tube；
Fig. 3 be Fig. 1 A-A to cross-sectional view；
Fig. 4 is the external structure schematic diagram of the second binding energy tube；
Fig. 5 is the cross-sectional view of the B-B direction of Fig. 4；
Fig. 6 is the structural schematic diagram of cumulative pipe connection；
Fig. 7 be Fig. 6 C-C to cross-sectional view；
Fig. 8 be Fig. 6 D-D to cross-sectional view；
Fig. 9 is the structural schematic diagram of binding energy tube positioning device；
Figure 10 be Fig. 9 E-E to cross-sectional view；
Figure 11 is the cross-sectional view of clamp sleeve；
Figure 12 is the structural schematic diagram of binding energy tube orienting device；
In figure, the body of rod 11, grooving 12, location hole 13, card slot 15, circular sleeve 21, circumferential protrusion 22, it is longitudinally convex 23,
Positioning wire 31, connecting rod 44, cylinder 41, clamp 42, connector 43, markings 45, round bar 46, roof strata 6, bores card 32
Hole 7, explosive 8.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will manage
Solution, the following example should not be taken as limiting the scope of the invention only in illustrating the present invention.Actual conditions are not specified in embodiment
Person carries out according to conventional conditions or manufacturer's recommended conditions.
Embodiment 1
A kind of coal mine roof plate deep hole presplitting directional blasting cumulative pipe device, including binding energy tube, cumulative pipe connection, cumulative
Pipe positioning device, primacord, the binding energy tube include several first binding energy tubes and second binding energy tube；First binding energy tube
It include tube body 11 with second binding energy tube, the outside of the tube body 11 is set there are two symmetrical grooving 12, and described first is poly-
Can pipe and second binding energy tube the tube body 11 upper/lower terminal be respectively equipped with it is several to wearing location hole 13, described the
One end of the tube body 11 of two binding energy tubes is additionally provided with one of card slot 15.The cumulative pipe connection includes circular sleeve 21,
Inside circumferential raised 22 and inside longitudinally convex 23 with the grooving 12 cooperation are equipped in the circular sleeve 21.
The binding energy tube positioning device includes that the positioning wire 31 for wearing the cooperation of location hole 13 with described pair and fixation are described fixed
The card 32 of position steel wire 31.
It further include binding energy tube orienting device, the binding energy tube orienting device includes connecting rod 44 and clamp sleeve；The card
Headgear cylinder includes cylinder 41, and described 41 one end of cylinder is equipped with the clamp 42 cooperated with the card slot 15, and the other end is equipped with and connection
The connector 43 that bar 44 connects, the connecting rod 44 are additionally provided with markings 45.
The tube body 11 of first binding energy tube and the second binding energy tube is that fire-retardant, antistatic PVC round tube is made.
The tube body 11 is long 1000mm-2000mm, fire-retardant, the antistatic PVC round tube of Φ 50mm, wall thickness 2mm；It is described to cut
Slot 12 width 5mm, depth 1.5mm；The number of the location hole 13 is four；The groove width 5mm of the card slot 15, groove depth 20mm,
At an angle of 90 with the grooving 12.
The circular sleeve 21 is 10mm long, wall thickness 3mm, and internal diameter is 0.5mm bigger than the outer diameter of the tube body 11；The circumferential direction is convex
Play 22 thickness 1.5mm, height of projection 3mm.
The positioning wire 31 is No. 8 steel wires.
The internal diameter of the cylinder 41 is 0.5mm bigger than the internal diameter of the tube body 11, wall thickness 2mm, length 100mm.
The connecting rod 44 is formed by connecting by the round bar 46 of several long 1500-2000mm, is all provided on each round bar 46
There are markings 45.
Before use, according to bore diameter, depth, inclination angle before top plate Deephole pre-splitting blasting, the diameter of binding energy tube and total is determined
Length selects the length of single binding energy tube, determines radical n, n-1 the first binding energy tube of root of binding energy tube, 1 second binding energy tube, n-1
A cumulative pipe connection, a binding energy tube positioning device of 4 (n-1).
Before use, above-mentioned each independent binding energy tube, cumulative pipe connection, binding energy tube positioning device and binding energy tube
Orienting device, primacord are by the following method and step assembles, and group rim construction in side ultimately forms the first cumulative of n-1 root
For pipe upper, it is finally that orientation fills that under, the 1st binding energy tube connect with n-th binding energy tube using primacord second binding energy tube
It sets, is connected between adjacent binding energy tube by attachment device, the integrality of the effective positioning device positioning of cumulative:
It is first fixed by 4 of first first binding energy tube after the first required binding energy tube, the second binding energy tube are installed explosive by I
Position hole 13 penetrates positioning wire 31, and steel wire both ends stretch out the equal length of binding energy tube, are pierced by exit card upper clamp slice in steel wire 31
32, the major part of binding energy tube 1 is protruded into drilling 7, the alignment drilling of grooving 12 of binding energy tube 1 connects during installing binding energy tube 1
Line.
The inner wall more than circumferential protrusion of the circular sleeve 21 of first cumulative pipe connection is smeared bonding agent by II, will be justified
21 sets of shape sleeve on first first binding energy tube, when installation, longitudinally convex the 23 of circular sleeve 21 are right with binding energy tube grooving 12
It answers, binding energy tube 1 is blocked when protruding into the circumferential direction protrusion 22 of cumulative pipe connection 2, and binding energy tube 1 and cumulative pipe connection 2 are viscous
It is connected together.
4 location holes 13 of second first binding energy tube are penetrated positioning wire 31 by III, and binding energy tube is stretched out at steel wire both ends
Equal length is pierced by exit card upper clamp slice 32 in steel wire 31；
The circumferential protrusion inner wall below of the circular sleeve 21 of first cumulative pipe connection 2 is smeared bonding agent 7 by IV, will
Second first binding energy tube is extend into circular sleeve 21, until circumferential protrusion 22；
Whether V first first binding energy tube of inspection and the grooving of second first binding energy tube two sides are respectively in straight line
On, and it is corresponding with drilling line.It is to continue lower step work, it is no, it reinstalls.
The step of VI is sent into the binding energy tube to link together in drilling 7, repetition III~VI, until installing n-1 root cumulative
Pipe.
VII n-th binding energy tubes are the second binding energy tube, it is desirable that one end with card slot 14 is in lower end, and other processes are the same as installation the
One binding energy tube.
VIII will be covered on the second binding energy tube using the cylinder 41 of orienting device, and the corresponding card slot 14 of clamp 42 is connect with connector 43
Upper connecting rod 44, markings and 1 grooving 12 of binding energy tube are on one wire, and corresponding with drilling line in connecting rod 44.By cumulative
Pipe is sent to 7 bottom holes of drilling.
There are two types of influence factors for binding energy tube cutting groove depth, do experiment to different cutting groove depths and obtain following relationship:
Using common joint-cutting, i.e., cumulative tube wall is cut through, in binding energy tube when blasting charge, leaks explosive；
When grooving is not cut through, when δ < 0.3mm, when powder charge, is easily burst part is not cut through；Promising result is not achieved；
As δ > 0.5mm, top plate joint-cutting effect is influenced.
Therefore, 0.3mm < δ < 0.5mm, effect are best
Although a specific embodiment of the invention has obtained detailed description, it will be understood to those of skill in the art that.Root
According to all introductions having disclosed, those details can be carry out various modifications and be replaced, these change in guarantor of the invention
Within the scope of shield.Full scope of the invention is given by the appended claims and any equivalents thereof.
Claims (10)
1. a kind of coal mine roof plate deep hole presplitting directional blasting cumulative pipe device, which is characterized in that connected including binding energy tube, binding energy tube
Device, binding energy tube positioning device, primacord, the binding energy tube include several first binding energy tubes and second binding energy tube；
First binding energy tube and second binding energy tube include tube body (11), are set on the outside of the tube body (11) there are two right
The upper/lower terminal of the tube body (11) of the grooving (12) of title, first binding energy tube and second binding energy tube is set respectively
Have several to wearing location hole (13), one end of the tube body (11) of second binding energy tube is additionally provided with one of card slot (15).
2. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as described in claim 1, which is characterized in that the cumulative
Pipe connection includes circular sleeve (21), be equipped in the circular sleeve (21) circumferential raised (22) and with the grooving (12)
Longitudinally convex (23) of cooperation.
3. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as described in claim 1, which is characterized in that the cumulative
Pipe positioning device includes the positioning wire (31) for wearing location hole (13) cooperation with described pair and the fixed positioning wire (31)
Card (32).
4. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as described in claim 1, which is characterized in that further include gathering
Energy pipe orienting device, the binding energy tube orienting device includes connecting rod (44) and clamp sleeve；
The clamp sleeve includes cylinder (41), and described cylinder (41) one end is equipped with the clamp cooperated with the card slot (15)
(42), the other end is equipped with the connector (43) connecting with connecting rod (44), and the connecting rod (44) is additionally provided with markings (45).
5. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as described in claim 1, which is characterized in that described first
The tube body (11) of binding energy tube and the second binding energy tube is that fire-retardant, antistatic PVC round tube is made.
6. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as described in claim 1, which is characterized in that the tube body
It (11) is long 1000mm-2000mm, Φ 30-60mm, wall thickness is fire-retardant, the antistatic PVC round tube of 2-5mm；The grooving (12)
Wide 4-6mm, depth h=s- δ, s are that 3/4ths, δ of the tube body wall thickness is that grooving does not cut through part, δ thickness 0.3mm~
5mm；The number of the location hole (13) is four；Groove width 5mm, the groove depth 20mm of the card slot (15), with the grooving
(12) at an angle of 90.
7. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as claimed in claim 2, which is characterized in that the circle
Sleeve (21) long 5mm-10mm, wall thickness 2-5mm, internal diameter are 0.5-1mm bigger than the outer diameter of the tube body (11)；The circumferential protrusion
(22) thickness 1-2mm, height of projection 3-5mm.
8. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as claimed in claim 3, which is characterized in that the positioning
Steel wire (31) is No. 8 steel wires.
9. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as claimed in claim 4, which is characterized in that the cylinder
(41) internal diameter is 0.5mm bigger than the internal diameter of the tube body (11), wall thickness 2-5mm, length 100mm.
10. coal mine roof plate deep hole presplitting directional blasting cumulative pipe device as claimed in claim 4, which is characterized in that the company
Extension bar (44) is formed by connecting by the round bar (46) of several long 1500-2000mm, is equipped with markings on each round bar (46)
(45)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594967.1A CN109506526B (en) | 2018-12-25 | 2018-12-25 | Coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594967.1A CN109506526B (en) | 2018-12-25 | 2018-12-25 | Coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506526A true CN109506526A (en) | 2019-03-22 |
| CN109506526B CN109506526B (en) | 2023-12-01 |
Family
ID=65755223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811594967.1A Active CN109506526B (en) | 2018-12-25 | 2018-12-25 | Coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109506526B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900176A (en) * | 2019-04-09 | 2019-06-18 | 山东科技大学 | A kind of novel deep hole blasting binding energy tube and its application method |
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2018
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| Publication number | Publication date |
|---|---|
| CN109506526B (en) | 2023-12-01 |
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