CN211824104U - Bidirectional detonating charge structure for upward fan-shaped medium-length hole of underground mine - Google Patents
Bidirectional detonating charge structure for upward fan-shaped medium-length hole of underground mine Download PDFInfo
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- CN211824104U CN211824104U CN201922414616.4U CN201922414616U CN211824104U CN 211824104 U CN211824104 U CN 211824104U CN 201922414616 U CN201922414616 U CN 201922414616U CN 211824104 U CN211824104 U CN 211824104U
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Abstract
The utility model discloses a two-way initiation loaded constitution of fan-shaped medium-length hole on underground mine, it includes that the scene of hole bottom thoughtlessly loads explosive, hole bottom relay priming tool, downthehole main explosion scene thoughtlessly loads emulsion explosive and drill way relay priming tool, the scene of hole bottom thoughtlessly loads the explosive and fills in the bottom to fan-shaped medium-length hole last, the scene of hole bottom relay priming tool buries the lower extreme that loads the explosive thoughtlessly at the scene of hole bottom, the scene of hole main explosion thoughtlessly loads the emulsion explosive setting in the scene of hole bottom thoughtlessly loads the lower part of explosive, the scene of drill way relay priming tool buries the lower extreme that the scene of hole main explosion thoughtlessly loads emulsion explosive. The utility model discloses having add the scene of mixing in the hole bottom and having adorned the explosive in the top of the relay initiating explosive in the hole bottom, having loaded emulsion explosive and the scene of mixing in the hole bottom when the scene of main explosion in the hole appears the tenesmus of certain degree because of reasons such as dead weight, the relay initiating explosive in the hole bottom also can not separate with the explosive, just so can guarantee two-way initiating effect to improve the fritter productivity, guaranteed the security of shovel dress ore removal process.
Description
Technical Field
The utility model relates to a two-way detonating loaded constitution of fan-shaped medium-length hole on underground mine can guarantee mine blasting effect, belongs to mining technical field.
Background
The bidirectional detonation of the upward sector-shaped medium-length hole of the underground mine is a common blasting method for mine enterprises, and the conventional explosive charging method is that a relay detonator is respectively installed at the hole bottom and the hole opening of the upward sector-shaped medium-length hole, and emulsion explosives are filled between the two relay detonators. The explosive charging method has the defect that when the emulsion explosive falls down due to dead weight and the like, the emulsion explosive is separated from a relay detonating tool at the bottom of a hole, so that the forward and reverse bidirectional detonating in the hole cannot be realized. Under the condition that the hole depth of the fan-shaped medium-length hole exceeds 10 meters, the expected blasting effect cannot be achieved by only relying on the forward blasting of the relay blasting tool, the small block output rate can be reduced, and the safety of the shovel loading ore removal process cannot be guaranteed due to the fact that explosives are attached to the collapsed rock.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's drawback, a to fan-shaped medium-length hole two-way initiation charge structure on the underground mine is provided to improve the fritter output rate, guarantee to shovel the security of dress ore removal process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the bidirectional detonation charge structure comprises a hole bottom field mixed explosive, a hole bottom relay explosive, a hole main explosion field mixed emulsion explosive and an orifice relay explosive which are arranged in an upward fan-shaped medium-length hole, wherein the hole bottom field mixed explosive is filled at the bottom of the upward fan-shaped medium-length hole, the hole bottom relay explosive is embedded into the lower end of the hole bottom field mixed explosive, the hole main explosion field mixed emulsion explosive is arranged at the lower part of the hole bottom field mixed explosive, and the orifice relay explosive is embedded into the hole and is embedded into the lower end of the hole main explosion field mixed emulsion explosive.
According to the bidirectional detonating and explosive charging structure for the upward fan-shaped medium-length hole of the underground mine, the upward fan-shaped medium-length hole is also internally provided with the orifice filler, and the orifice filler is filled between the orifice and the main explosion site mixed emulsion explosive in the hole.
According to the bidirectional detonating charge structure for the upward sector medium-length holes of the underground mine, the hole bottom relay detonating tool and the orifice relay detonating tool are detonating explosive packages capable of being filled with detonators.
According to the bidirectional detonating charge structure for the upward fan-shaped medium-length hole of the underground mine, the orifice stuffing is a nylon bag.
According to the bidirectional detonating and charging structure for the upward fan-shaped medium-length hole of the underground mine, the filling length of the mixed explosive at the hole bottom site is 20-100 cm.
According to the bidirectional detonating charge structure for the upward fan-shaped medium-length hole of the underground mine, the filling length of the orifice filler is 50-100 cm.
The utility model discloses having add the scene of mixing in the hole bottom and having adorned the explosive in the top of the relay initiating explosive device in the hole bottom, having mixed when the scene of main explosion in the hole and mixed when loading emulsion explosive and the scene of mixing in the hole bottom and loading the explosive because of reasons such as dead weight appear certain degree, the relay initiating explosive device in the hole bottom can not mix with the scene of hole bottom and load the explosive separation yet, just so can guarantee two-way initiating effect to improve the fritter productivity, guaranteed the security of shovel dress ore removal process.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figures are as follows: 1. the method comprises the following steps of (1) loading explosive in a hole bottom field in a mixed mode, 2, a hole bottom relay detonating device, 3, an in-hole main detonating field in a mixed mode, 4, an upward fan-shaped medium-length hole, 5, an orifice relay detonating device, 6 and an orifice filler.
Detailed Description
The utility model provides a to two-way initiation loaded constitution of fan-shaped medium-length hole on the underground mine, can effectively solve because of the unable reverse problem of detonating that realizes of hole bottom that hole bottom relay initiating explosive device and explosive separation caused to guarantee the blasting effect, reduced medium-length hole blasting bold output rate, improved the security of shovel dress ore removal process.
Referring to fig. 1, the utility model mainly comprises a hole bottom field mixed explosive 1, a hole bottom relay detonator 2, a hole main explosion field mixed explosive 3, an orifice relay detonator 5 and an orifice stuffing 6.
The specific charging method is as follows: firstly, a 20-100 cm hole bottom field mixed explosive 1 is placed at the hole bottom of a fan-shaped medium-length hole 4 by a powder feeding pipe (a special explosion-proof pipe with scales), then the powder feeding pipe is drawn out, a hole bottom relay initiating device 2 is clamped at the head of the powder feeding pipe and is placed into the hole bottom field mixed explosive 1, then a hole main explosion field mixed emulsified explosive 3 is driven into the hole by the powder feeding pipe (the hole main explosion field mixed emulsified explosive 3 is continuous with the hole bottom field mixed explosive 1 and is coupled with the hole wall), the powder feeding pipe is drawn out, an orifice relay initiating device 5 is clamped at the head of the powder feeding pipe, the orifice relay initiating device is placed into the hole, the hole main explosion field mixed emulsified explosive 3 completely wraps the orifice relay initiating device 5, and finally an orifice filler 6 (a nylon bag) with a certain length is filled into the orifice according to design requirements, so that single-hole explosive charging operation is completed.
The number of the charges in the hole is prolonged by the number of the charges multiplied by the depth of the fan-shaped medium-length hole, and the charge coefficient is 0.7-0.8.
Through on-the-spot blasting practice verification, the utility model discloses can improve the blasting effect, reduce the large block rate in stope, can guarantee to a certain extent that the stope lasts the security of supplying the ore deposit.
Claims (6)
1. The bidirectional detonation charge structure is characterized by comprising a hole bottom field mixed explosive (1), a hole bottom relay detonator (2), a hole main detonation field mixed emulsion explosive (3) and an orifice relay detonator (5) which are arranged in an upward fan-shaped medium-length hole (4), wherein the hole bottom field mixed explosive (1) is filled at the bottom of the upward fan-shaped medium-length hole (4), the hole bottom relay detonator (2) is embedded into the lower end of the hole bottom field mixed explosive (1), the hole main detonation field mixed emulsion explosive (3) is arranged at the lower part of the hole bottom field mixed explosive (1), and the orifice relay detonator (5) is embedded into the lower end of the hole main detonation field mixed emulsion explosive (3).
2. The upward sector-shaped medium-length hole bidirectional initiation explosive charging structure of the underground mine according to claim 1, characterized in that an orifice filler (6) is further arranged in the upward sector-shaped medium-length hole (4), and the orifice filler (6) is filled between the orifice and the mixed emulsion explosive (3) in the main explosion site in the hole.
3. The bidirectional detonating charge structure of the sector medium-length hole on the underground mine according to the claim 1 or 2, characterized in that the hole bottom relay primer (2) and the orifice relay primer (5) are primer charges capable of being filled with detonators.
4. The upward sector medium-length hole bidirectional initiation explosive charging structure of an underground mine according to claim 2, wherein the orifice stuffing (6) is a nylon bag.
5. The upward sector-shaped medium-length hole bidirectional initiation explosive charging structure of an underground mine according to claim 4, wherein the filling length of the hole bottom field mixed explosive (1) is 20-100 cm.
6. The upward sector-shaped medium-length hole bidirectional initiation explosive charging structure of an underground mine according to claim 5, wherein the filling length of the orifice stuffing (6) is 50-100 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414616.4U CN211824104U (en) | 2019-12-29 | 2019-12-29 | Bidirectional detonating charge structure for upward fan-shaped medium-length hole of underground mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414616.4U CN211824104U (en) | 2019-12-29 | 2019-12-29 | Bidirectional detonating charge structure for upward fan-shaped medium-length hole of underground mine |
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| CN211824104U true CN211824104U (en) | 2020-10-30 |
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| CN201922414616.4U Active CN211824104U (en) | 2019-12-29 | 2019-12-29 | Bidirectional detonating charge structure for upward fan-shaped medium-length hole of underground mine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683117A (en) * | 2020-12-23 | 2021-04-20 | 莱芜莱新铁矿有限责任公司 | Construction method for slot-drawing blasting without well cutting |
| CN113983883A (en) * | 2021-10-27 | 2022-01-28 | 湖南柿竹园有色金属有限责任公司 | Deep hole internal subsection energy-gathering detonation once-through well completion method |
| CN113983884A (en) * | 2021-10-27 | 2022-01-28 | 湖南柿竹园有色金属有限责任公司 | Method for filling blasting upward hole mixed explosive and primary explosive |
-
2019
- 2019-12-29 CN CN201922414616.4U patent/CN211824104U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683117A (en) * | 2020-12-23 | 2021-04-20 | 莱芜莱新铁矿有限责任公司 | Construction method for slot-drawing blasting without well cutting |
| CN113983883A (en) * | 2021-10-27 | 2022-01-28 | 湖南柿竹园有色金属有限责任公司 | Deep hole internal subsection energy-gathering detonation once-through well completion method |
| CN113983884A (en) * | 2021-10-27 | 2022-01-28 | 湖南柿竹园有色金属有限责任公司 | Method for filling blasting upward hole mixed explosive and primary explosive |
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