CN204757834U - Radial vacuum deck charge device of initiative release - Google Patents
Radial vacuum deck charge device of initiative release Download PDFInfo
- Publication number
- CN204757834U CN204757834U CN201520469348.5U CN201520469348U CN204757834U CN 204757834 U CN204757834 U CN 204757834U CN 201520469348 U CN201520469348 U CN 201520469348U CN 204757834 U CN204757834 U CN 204757834U
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- explosive
- exocoel
- inner chamber
- vacuum
- dielectric layer
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Abstract
The utility model discloses a radial vacuum deck charge device of initiative release, it includes exocoel (6), its characterized in that: be between exocoel (6) and inner chamber (4) vacuum dielectric layer (5), it is sealed that closing plate (1) is passed through at vacuum dielectric layer (5) both ends, and explosive (3) are equipped with in inner chamber (4) intussuseption, and the upper portion of explosive (3) is air dielectric layer (2), the utility model provides a prior art utilize materials such as water or air as the blank medium because the downthehole space of big gun is narrow airtight, explosion back explosive energy can not in time effectively be laid down to lead to the rock to distinguish to such an extent that the comminution is still great crushing, initial stage energy consumption is very big, and explosive energy efficient utilization ratio is not ideal, can not reach comparison ideal blasting effect scheduling problem.
Description
Technical field
The utility model belongs to blasting technique, particularly relates to a kind of radial vacuum space of active release every means for loading.
Background technology
In most of blast working process, in big gun hole, charging means is mainly continuously closely knit charging means and Uncoincided charge mode.And the main Uncoincided charge mode that adopts in surface blasting now, which explosive is adopted directly to contact with the hole wall in big gun hole, when explosive charge in big gun hole, detonation pressure is increased to tens thousand of MPa in the play of having to go to the toilet of several microsecond, and shock wave has been excited in the ore deposit rock of explosive internal layer, its intensity is considerably beyond the compression strength of rock.Under detonation wave consumingly percussion, surrounding rock can be subject to comminuted destruction and form crush zone, finally can cause powder increasing proportion after explosion.Simultaneously because ore deposit rock suffers strong pulverizing, initial stage energy ezpenditure is very large, and explosive energy effective rate of utilization reduces.Therefore, crush zone should be avoided the formation of during explosion as far as possible.Outside crush zone, under the acting in conjunction of stress wave and detonation gas, along with the formation of radial cracking, circumferential crack and tangent cracks, produce the rupture zone that a crackle is grown, this part is then the burst region forming better quality.Initial detonation pressure is reduced in order to reach, reduce the generation of powder, improve blasting quality, reduce explosive consumption, effectively utilize explosive energy, now generally utilize the material such as water or air explosive and big gun hole wall to be separated as blank medium, and then reduce the initial pressure that blast wave acts on hole wall, the action time of effective prolongation blast load, make to produce crush zone around big gun hole and obviously reduce, thus effectively improve explosive energy utilization rate.But still there is the direct phenomenon contacted with blasting hole hole wall of explosive, again because narrow space in hole is airtight, after blast, explosive energy can not timely and effectively be laid down, thus it is still larger to cause rock to obtain pulverization in disintegrating area, initial stage energy ezpenditure is very large, explosive energy effective rate of utilization is not ideal, can not reach more satisfactory demolition effect.
utility model content:
The technical problems to be solved in the utility model: provide a kind of radial vacuum space of active release every means for loading, utilize the material such as water or air as blank medium to solve prior art, because in big gun hole, narrow space is airtight, after blast, explosive energy can not timely and effectively be laid down, thus it is still larger to cause rock to obtain pulverization in disintegrating area, initial stage energy ezpenditure is very large, and explosive energy effective rate of utilization is not ideal, can not reach the problems such as more satisfactory demolition effect.
Technical solutions of the utility model:
The radial vacuum space of active release is every a means for loading, and it comprises exocoel, is vacuum medium layer between exocoel and inner chamber, and vacuum medium layer two ends are sealed by sealing plate, are filled with explosive in inner chamber, and the top of explosive is air dielectric layer.
The spacing distance of exocoel and big gun hole wall is 3-5 millimeter.
The material of described exocoel, inner chamber and sealing plate is polyvinyl chloride.
The thickness of vacuum medium layer is 15-17 millimeter.
The height of air dielectric layer is 3 millimeters.
The beneficial effects of the utility model:
Explosive of the present utility model is in the center of inner chamber, isolate with exocoel by vacuum medium with big gun hole inwall and directly do not contact, after explosive charge, first explosive energy is passed to inner chamber ambient air, again by transfer of air to the vacuum of vacuum medium layer, finally pass to big gun hole, this energy transfer process can by a part of explosive charge energy storage in the vacuum area of vacuum medium layer, blasting hole initial peak pressure is reduced, reduce the ore deposit rock even avoiding being formed because of coupling charging and impact crush zone, expand rupture zone scope, the bounce-back being stored in the gas of exocoel subsequently releases energy automatically, effectively can extend the time of blast action, improve the effective rate of utilization of explosive charge energy, reduce explosive specific charge, blasting cost is reduced, in minimizing blasting flyrock, has obvious effect simultaneously.The utility model solves prior art and utilizes the material such as water or air as blank medium, because in big gun hole, narrow space is airtight, after blast, explosive energy can not timely and effectively be laid down, thus it is still larger to cause rock to obtain pulverization in disintegrating area, initial stage energy ezpenditure is very large, explosive energy effective rate of utilization is not ideal, can not reach the problems such as more satisfactory demolition effect.
accompanying drawing illustrates:
Fig. 1 is the utility model structural representation;
Fig. 2 is the radial cross-sectional schematic of the utility model;
Fig. 3 is the utility model schematic top plan view.
detailed description of the invention:
A kind of radial vacuum space of active release is every means for loading, it comprises exocoel 6, it is vacuum medium layer 5 between exocoel 6 and inner chamber 4, vacuum medium layer 5 two ends are sealed by sealing plate 1, explosive 3 is filled with in inner chamber 4, exocoel 1, inner chamber 4 and sealing plate 8 form a seal chamber, are vacuum medium 5 in cavity.The space segment not loading explosive in inner chamber 4 is air dielectric layer 2.
Exocoel 1 is 3-5 millimeter with the spacing distance of big gun hole wall 7, guarantees that exocoel can be put in big gun hole smoothly.
The material of described exocoel 6, inner chamber 4 and sealing plate 1 is polyvinyl chloride, adopts this material to have flexibility, withstand voltage, wear-resisting, acid and alkali-resistance, the characteristic such as lightweight, and convenient transportation, cheap.
The height of air dielectric layer is 3 millimeters, and object is to meet gap distance requirement.
The thickness of vacuum medium layer 5 is 15-17 millimeter, during to guarantee explosive charge, most explosive charge energy storage is in the vacuum area of vacuum medium layer, blasting hole initial peak pressure is reduced, reduce the ore deposit rock even avoiding being formed because of coupling charging and impact crush zone, expand rupture zone scope.
Advantage of the present utility model has:
1, directly contacting with blasthole hole wall by adopting vacuum medium layer to effectively prevent explosive with exocoel, reducing blast initial stage detonation pressure, decreasing the ratio that ore deposit rock crosses pulverizing.
2, explosive is directly loaded inner chamber by the utility model, and powder charge process is simple, improves loading rate, changes degree of packing, decrease top, big gun hole boulder yield, reduces blasting vibration.
3, the air rebound by being stored in vacuum medium layer releases energy automatically, the time of effective prolongation blast action, improve the effective rate of utilization of explosive charge energy, reduce explosive specific charge, blasting cost is reduced, in minimizing blasting flyrock, has obvious effect simultaneously.
Claims (5)
1. the radial vacuum space of an active release is every means for loading, it comprises exocoel (6), it is characterized in that: be vacuum medium layer (5) between exocoel (6) and inner chamber (4), vacuum medium layer (5) two ends are by sealing plate (1) sealing, be filled with explosive (3) in inner chamber (4), the top of explosive (3) is air dielectric layer (2).
2. the radial vacuum space of a kind of active release according to claim 1 is every means for loading, it is characterized in that: exocoel (6) is 3-5 millimeter with the spacing distance of the inwall in big gun hole (7).
3. the radial vacuum space of a kind of active release according to claim 1 is every means for loading, it is characterized in that: the material of described exocoel (6), inner chamber (4) and sealing plate (1) is polyvinyl chloride.
4. the radial vacuum space of a kind of active release according to claim 1 is every means for loading, it is characterized in that: the thickness of vacuum medium layer (5) is 15-17 millimeter.
5. the radial vacuum space of a kind of active release according to claim 1 is every means for loading, it is characterized in that: the height of air dielectric layer (2) is 3 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469348.5U CN204757834U (en) | 2015-07-03 | 2015-07-03 | Radial vacuum deck charge device of initiative release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469348.5U CN204757834U (en) | 2015-07-03 | 2015-07-03 | Radial vacuum deck charge device of initiative release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204757834U true CN204757834U (en) | 2015-11-11 |
Family
ID=54472535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520469348.5U Expired - Fee Related CN204757834U (en) | 2015-07-03 | 2015-07-03 | Radial vacuum deck charge device of initiative release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204757834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897013A (en) * | 2015-07-03 | 2015-09-09 | 贵州大学 | Radial vacuum spaced charging device with active pressure relief |
| CN109696099A (en) * | 2019-02-21 | 2019-04-30 | 安徽理工大学 | Special multifunctional water bag for green mine blasting |
-
2015
- 2015-07-03 CN CN201520469348.5U patent/CN204757834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897013A (en) * | 2015-07-03 | 2015-09-09 | 贵州大学 | Radial vacuum spaced charging device with active pressure relief |
| CN109696099A (en) * | 2019-02-21 | 2019-04-30 | 安徽理工大学 | Special multifunctional water bag for green mine blasting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20210703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |