CN209605685U - A kind of surface mine presplit blasting means for loading - Google Patents
A kind of surface mine presplit blasting means for loading Download PDFInfo
- Publication number
- CN209605685U CN209605685U CN201920084862.5U CN201920084862U CN209605685U CN 209605685 U CN209605685 U CN 209605685U CN 201920084862 U CN201920084862 U CN 201920084862U CN 209605685 U CN209605685 U CN 209605685U
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- China
- Prior art keywords
- powder charge
- utility
- model
- loading
- ceasma
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- 238000005422 blasting Methods 0.000 title claims abstract description 42
- 238000011068 loading method Methods 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 68
- 239000002360 explosive Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004880 explosion Methods 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model discloses a kind of surface mine presplit blasting means for loadings, suitable for current domestic air bench blasting operation.The utility model uses novel means for loading, explosive is fitted into truncated cone-shaped powder charge pipe and is ignited with primacord, to reach stringent not isometrical radial Uncoincided charge on charge constitution, the utility model uses the truncated cone-shaped powder charge pipe for having scalability, circular baffle plate is provided on truncated cone-shaped powder charge pipe simultaneously, to play the role of air-spacer, while it is askew to prevent powder charge funnel from putting；In the arrangement of pre- ceasma, the utility model reduces the pitch-row of pre- ceasma, and takes spaced loading, i.e., a medicine is filled every a hole, to reduce explosive payload；On the line of network, the utility model takes hole-by-hole blasting circuit.The utility model has the advantages that materials are convenient, low in cost, simple convenient for storing and transporting, arrange, while can greatly improve quick-fried rear Half cast factor and effectively drop vibration, has wide applicability in the presplit blasting operation of current domestic surface mine.
Description
Technical field
The utility model belongs to surface mine exploitation field, and being applied to reduces blasting vibration in surface mine recovery process makees
A kind of industry, and in particular to surface mine presplit blasting means for loading.
Background technique
During surface mine exploitation, such as blasting vibration, blasting flyrock, explosion can be generated in demolition site and is made an uproar
The ill-effects such as sound, blasting dust and pernicious gas.Damage of these ill-effects to local-style dwelling houses around environment and mining area is not
Hold and ignores, and in these ill-effects, blasting vibration is especially prominent to the damage of the house of local-style dwelling houses around and other buildings,
Therefore, blasting vibration is reduced in surface blasting, is of great significance for the improvement of explosion surrounding enviroment.
Presplit blasting is a kind of widely used method, when presplit blasting refers to progress rock excavation, in the explosion of the area Zhu Bao
Forward position design profile line first produce the through crack with one fixed width, to buffer, reflect the vibration wave of Excavation blasting,
It is controlled to the destroying infection for retaining rock mass, is allowed to obtain more smooth outline excavation.But currently used presplit blasting
Method have powder charge difficult, the disadvantages of explosive payload causes greatly the caused vibration in presplit blasting hole larger.
Based on the problem present on, the utility model devises a kind of surface mine presplit blasting means for loading, to drop
It is significant to reduce explosive payload save the cost for low powder charge difficulty
Utility model content
Powder charge is difficult when the utility model aims to solve the problem that current surface mine presplit blasting, explosive payload is big, working efficiency is low,
The disadvantages of big is vibrated when explosion, proposes a kind of surface mine presplit blasting means for loading.
Technical solution used by the utility model is as follows:
A kind of surface mine presplit blasting means for loading, it is using spacer holes powder charge, i.e., primary every a hole dress
Medicine；
ANFO explosives prill is packed into PVC by powder charge funnel by a kind of surface mine presplit blasting means for loading
In powder charge pipe made of material, eliminates cumbersome powder stick of tying up and work；
A kind of surface mine presplit blasting means for loading carries out powder charge using truncated cone-shaped powder charge pipe, guarantees powder charge
Amount equably reduces to aperture from bottom hole, forms stringent not isometrical radial Uncoincided charge；
A kind of surface mine presplit blasting means for loading in order to avoid the too long influence storage of powder charge pipe and transports,
Using telescopic powder charge pipe, when use, can stretch out powder charge pipe；
A kind of surface mine presplit blasting means for loading designs a diameter and tube bottom around powder charge pipe nozzle
Identical circular baffle plate, there are three effects for baffle:
1) facilitate top powder charge funnel to be put into powder charge pipe nozzle, avoid powder charge funnel from putting askew；
2) air-spacer is replaced, directly backfills drilling cuttings after taking out powder charge funnel after powder charge, is made in explosive and filling
Between just have certain airspace section, airspace, which has, extends detonation stresses action time, improves the effect of demolition effect；
3) handle effect is served as when stretching out powder charge pipe.This charging means can simplify powder charge, reduces powder charge difficulty, mentions
High loading rate.
A kind of surface mine presplit blasting means for loading should reduce the pitch-row of pre- ceasma, presplitting in use process
The spacing in hole takes a=(7-12) D, and wherein D is pre- ceasma aperture, generally takes smaller value.The explosive payload of each pre- ceasma is according to rock
Stone property and field experience obtain.
The utility model using producible the utility model has the advantages that
1) a kind of surface mine presplit blasting means for loading described in, is obtained by field experiment, uses technology with current
It compares, drop vibration effect can be improved about 40%；
2) the surface mine presplit blasting means for loading that the utility model is proposed can the perfect effect for realizing presplit blasting
Fruit, and powder charge is simple, and explosive payload can be made to reduce about 10%；
3) the surface mine presplit blasting means for loading that the utility model is proposed is subtracted using spacer holes powder charge and explosive payload
It is few, the blasting vibration due to caused by pre- ceasma explosion can be substantially reduced；
4) the surface mine presplit blasting means for loading that the utility model is proposed may be implemented more pre- ceasmas while rise
It is quick-fried, pre- ceasma detonation number of segment is reduced to avoid pre- ceasma from being superimposed with main armament area detonation stresses.
Detailed description of the invention
Attached drawing 1 is the means for loading schematic diagram of the utility model；
Attached drawing 2 is the charging means schematic diagram of the utility model；
Attached drawing 3 is the charge constitution schematic diagram of the utility model；
Attached drawing 4 is the cloth hole schematic diagram of the utility model；
Attached drawing 5 is the network line graph of the utility model.
Each number designation indicates in figure: 1, top powder charge funnel, 2, baffle, 3, scalable truncated cone-shaped powder charge pipe 4, lead it is quick-fried
Rope, 5, ammonium nitrate-fuel oil mixture, 6, filling, 7, air, 8, the pre- ceasma of powder charge, 9, the pre- ceasma of not powder charge, 10, cushion hole, 11, main armament hole,
12, fire point, 13, pre- ceasma, 14, detonator and section are other in hole, 15, detonator and section are other outside hole.
Specific embodiment
It, below will be detailed where further describing the technical solution and advantage of presplit blasting described in the utility model
The embodiment of this patent is described, the content and accompanying drawings of the presplit blasting method represent in the accompanying drawings, need to illustrate
, described embodiment is a part of the embodiment of the application, instead of all the embodiments.Based on the reality in the application
Example is applied, other embodiments obtained all belong to one of ordinary skilled in the art without making creative work
In the range of the application protection.
A kind of surface mine presplit blasting means for loading shown in -5, chief component include: top powder charge referring to Fig.1
Funnel 1, baffle 2, scalable truncated cone-shaped powder charge pipe 3, primacord 4, ammonium nitrate-fuel oil mixture 5, filling 6, air 7, the pre- ceasma 8 of powder charge, no
The pre- ceasma 9 of powder charge, cushion hole 10, blasthole 11, fire point 12, pre- ceasma 13, in hole detonator and section is other 14, outside hole detonator and
Section other 15.
Explosive is passed through powder charge funnel 1 by the means for loading schematic diagram of the utility model shown in referring to Fig.1, the utility model
It is put into truncated cone-shaped powder charge pipe 3, eliminates and cumbersome tie up the work such as powder stick；
Further, truncated cone-shaped powder charge pipe 3 is made using PVC material, can change device according to the size of blasthole size
Size.
Referring to the charging means schematic diagram of the utility model shown in Fig. 2, steps are as follows for powder charge:
S1, it is drilled according to explosion design instruction, and pre- ceasma pitch-row is reduced according to design instruction；
S2, it will stretch out, be then placed in the pre- ceasma 8 of powder charge in the truncated cone-shaped powder charge pipe 3 for shrinking contracting state；
S3, powder charge funnel 1 is loaded on 3 top of truncated cone-shaped powder charge pipe；
S4, primacord 4 is put into 3 bottom of truncated cone-shaped powder charge pipe along powder charge funnel 1, by ammonium nitrate-fuel oil mixture 5 from powder charge funnel 1
In pour into truncated cone-shaped powder charge pipe 3.
Referring to the charge constitution schematic diagram of the utility model shown in Fig. 3, to the ammonium nitrate-fuel oil mixture 5 in truncated cone-shaped powder charge pipe 3
After filling, top powder charge funnel 1 is taken out；
Further, drilling cuttings 6 is directly backfilled on baffle 2, makes to generate air between ammonium nitrate-fuel oil mixture 5 and the pre- ceasma 8 of powder charge
Interval 7.
Referring to the cloth hole schematic diagram of the utility model shown in Fig. 4, the pre- ceasma takes spaced loading, that is, is respectively arranged
There are the pre- ceasma 8 of powder charge and the pre- ceasma 9 of not powder charge, the pre- ceasma 8 of powder charge carries out powder charge according to method shown in Fig. 2, Fig. 3, and not powder charge is pre-
Ceasma 9 is without any processing；
Further, the cloth hole boundary of pre- split plot should exceed main armament area.One row buffering is set between main armament area and pre- ceasma
Hole 10,10 spacing very little of cushion hole, about 0.5-0.7 times of 11 spacing of main armament hole, charge constitution and main armament hole 11 are consistent.
The network line graph of the utility model referring to Figure 5, pre- ceasma 13 are connected using primacord 4, and main armament area is adopted
It is connected with Nonel detonator 15 outside Nonel detonator 14 in hole and hole, and is risen using hole-by-hole initiation mode in regulation fire point 12
It is quick-fried, to the vibration being effectively reduced when explosion.
Although having shown and having described presplit blasting means for loading described in the utility model above, it is possible to understand that
Be is that illustratively, should not be understood as limiting the present invention, can do on this basis according to actual demand above
Targeted adjustment is provided, to obtain different embodiments.
Claims (4)
1. a kind of surface mine presplit blasting means for loading, which is characterized in that composition includes:
Powder charge funnel, when powder charge, are put into truncated cone-shaped powder charge pipe, and explosive is fitted into powder charge pipe；
Scalable truncated cone-shaped powder charge pipe is stretched out in use process, is placed in the pre- ceasma of powder charge；
Powder charge pipe upper guard-plate is located at powder charge tube top portion, for being spaced air.
2. a kind of surface mine presplit blasting means for loading according to claim 1, it is characterised in that charge constitution uses
Not isometrical radial decoupling charge structure.
3. a kind of surface mine presplit blasting means for loading according to claim 1, it is characterised in that using on powder charge pipe
The baffle in portion replaces air-spacer.
4. a kind of surface mine presplit blasting means for loading according to claim 1, feature uses spaced loading, performance
To be provided with the pre- ceasma of powder charge and the pre- ceasma of not powder charge simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084862.5U CN209605685U (en) | 2019-01-18 | 2019-01-18 | A kind of surface mine presplit blasting means for loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084862.5U CN209605685U (en) | 2019-01-18 | 2019-01-18 | A kind of surface mine presplit blasting means for loading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209605685U true CN209605685U (en) | 2019-11-08 |
Family
ID=68401178
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920084862.5U Expired - Fee Related CN209605685U (en) | 2019-01-18 | 2019-01-18 | A kind of surface mine presplit blasting means for loading |
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| Country | Link |
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| CN (1) | CN209605685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2019
- 2019-01-18 CN CN201920084862.5U patent/CN209605685U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 |