CN105953668A - Auxiliary explosive loading device for on-site mixing emulsion explosive loading truck - Google Patents
Auxiliary explosive loading device for on-site mixing emulsion explosive loading truck Download PDFInfo
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- CN105953668A CN105953668A CN201610503911.5A CN201610503911A CN105953668A CN 105953668 A CN105953668 A CN 105953668A CN 201610503911 A CN201610503911 A CN 201610503911A CN 105953668 A CN105953668 A CN 105953668A
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- charge device
- device body
- deformation charge
- explosive loading
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- 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
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
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- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses an auxiliary explosive loading device for an on-site mixing emulsion explosive loading truck. The auxiliary explosive loading device comprises an auxiliary explosive loading device body, supports and a lifting mechanism, wherein the auxiliary explosive loading device body comprises a metal ring and an anti-static rubber layer which wraps the metal ring; the multiple supports are arranged around the auxiliary explosive loading device body and are separately connected with the auxiliary explosive loading device body; and the lifting mechanism is arranged on the auxiliary explosive loading device body. By adopting the auxiliary explosive loading device for the on-site mixing emulsion explosive loading truck, an anti-static effect can be well realized; an electric detonator is prevented from being interfered by static electricity and the like, so that accidents are prevented; besides, through the design of the auxiliary explosive loading device body, the hole wall of a blasting hole is well protected, and the phenomenon of hole blogging of the blasting hole caused by the fact that movable stones fall into the blasting hole can be avoided; the labor intensity of operation personnel is lowered; and the working efficiency is improved.
Description
Technical field
The present invention relates to the auxiliary device toward filling emulsified explosive into blast hole, a kind of on-site mixed emulsion fills
Medicine car deformation charge device, belongs to mine industry auxiliary technical field of mining equipment.
Background technology
In recent years, along with the continuous progress of Machining Technology, increasing machine instruction statement mining equipment is applied to mine
In exploitation, as the key link of mining, bore quick-fried operation to mining quality, mining progress and cost of winning
Serve important function, how to improve brill quick-fried operation quality, accelerate bore quick-fried operating speed be increasing mining
Manager and engineers and technicians' problems faced, on-site mixed explosive explosive loading truck is ore deposit in the powder charge link of bursting work
Mountain exploitation has saved substantial amounts of time and cost, at the utility model patent " that China Patent No. is 201420423746.9
Kind for ammonium oil on-site mixed explosive explosive loading truck scene loading transmitting device " background technology in mention explosive on-site mixed
Technology has obtained the biggest application in engineering explosion, and on-site mixed explosive is also known as bulk explosive or without packaging explosive, its skill
Art depends on on-site mixed explosive explosive loading truck and realizes.
The development of on-site mixed explosive explosive loading truck originated in for 20 century 70 mid-terms, along with the development of technology,
This technology is introduced into domestic, has become as now one of capital equipment of large-scale mine exploitation, current on-site mixed fried
Medicine explosive loading truck can be divided into on-site mixed ammonium nitrate-fuel oil mixture explosive loading truck, on-site mixed Slurry Loading Truck and on-site mixed emulsifying
Three kinds of explosive loading car.Due to the difference of explosive property, cost etc., the explosive kind used in different mines is the most just
Difference, and then require that the kind of the on-site mixed explosive explosive loading truck of use is the most different, emulsion is due to water resistance relatively
Good, the advantages such as sensitivity is moderate and be widely used in the rainy region such as Central China and south, such as in Henan
Adding the outdoors iron ore in ore deposit, have substantial amounts of water hole in recovery process, this just requires that explosive selects upper use to be mixed by scene more
The bulk emulsifying explosive that dress explosive loading truck of emulsion explosive is on-site mixed, the emulsifying of a diameter of 110mm of the many employings of its igniting primer
Bar medicine, its on-site mixed explosives truck uses BCJ-3 type emulsified explosive car；This explosive loading truck of emulsion explosive is due to can be complete
Become a large amount of charging work, increase degree of packing, raising charging quality, minimizing operating personnel, reduction production cost etc. excellent
Put and be widely used.
Owing to there is a lot of rubble, Pumex and big gun area working face out-of-flatness at bursting work scene, in powder charge process,
Hole that rig is drilled can because on-site mixed explosive explosive loading truck grug transportation tube in work surface and hole back and forth move and on
Lower stretching, and operating personnel other factors such as walks about, and makes the stone loosened on some rubbles, Pumex or blasthole hole wall
Drop and cause big gun hole hole clipping in big gun hole, so may result in powder charge speed and reduce, affect loading rate, more serious meeting
In causing big gun hole, powder charge is discontinuous, residual medicine or blind big gun etc. occurs.It is the practicality of 201120181857.X in China Patent No.
New patent " Inflatable blasthole protective cover ", China Patent No. are the utility model patent " one of 201420400577.7
The breast wall apparatus of protection aperture, big gun hole reduction stage ", China Patent No. be 201420199116.8 utility model patent "
Kind of support beam blasting hole safeguard structure " in describe the devices in some protection big gun holes respectively, but these simply solve
The protection in big gun hole, is still not fee from the hole clipping phenomenon when blast hole projectile filling, is 201210157465.9 in China Patent No.
Patent of invention " Multifunctional emulsion explosive vehicle ", China Patent No. be 201310007706.6 patent of invention " one is many
Function on-site mixed explosives truck ", Chinese Patent Application No. be 201410197391.0 application for a patent for invention " overhead system is existing
Load in mixture ANFO explosives prill car " in describe structure, structure and the function etc. of novel mixed explosive explosive loading truck the most respectively,
There is presently no the powder charge demand that can either meet on-site mixed explosive explosive loading truck, the device in big gun hole can be protected again well
And equipment, this is a problem needing to solve.
Summary of the invention
It is an object of the invention to for above-mentioned the deficiencies in the prior art, it is provided that a kind of on-site mixed explosive loading truck of emulsion explosive is auxiliary
Helping means for loading, this apparatus structure is simple and convenient to operate, safe and reliable, both can protect big gun hole, the most permissible
Deformation charge.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of on-site mixed explosive loading truck of emulsion explosive deformation charge device, including deformation charge device body, bearing and liter
Descending mechanism；Described deformation charge device body includes quoit and is wrapped in the antistatic rubber layer of quoit；Described
Seat has multiple, and multiple bearings are arranged on around deformation charge device body, and respectively with deformation charge device body even
Connect；Described elevating mechanism is arranged on deformation charge device body.
Preferably, each bearing includes transverse supporting rod, the first support and the first inclined support bar；The one of described transverse supporting rod
End is connected with the first support, and the other end is connected with deformation charge device body；One end of described first inclined support bar and the
One support connects, and the other end is connected with transverse supporting rod, deformation charge device body respectively.
Preferably, described transverse supporting rod, the first support and the first inclined support bar by metallic rod and are wrapped in metallic rod
Antistatic rubber layer forms.
Preferably, the metallic rod of described transverse supporting rod and the first inclined support bar respectively with the metal of deformation charge device body
Circle connects, the antistatic rubber layer of described transverse supporting rod and the first inclined support bar anti-with deformation charge device body respectively
Electrostatic rubber layer seamless link.
Preferably, described elevating mechanism is corresponding with one of them bearing, and the transverse supporting rod of this bearing is provided with a foot
Pedal, described pedal is connected with elevating mechanism.
Preferably, described elevating mechanism includes the second support, the second inclined support bar, pulley and grug transportation tube；Described second
Support and the second inclined support bar all have two, and two the second supports are symmetrical, and two the second inclined support bars are symmetrical,
Corresponding second inclined support bar of each second support；For each second support and each second inclined support bar, second
Support is divided into vertical section and horizontal segment, one end of described vertical section to be connected, separately with the quoit of deformation charge device body
One end is connected with horizontal segment, and one end of the second inclined support bar is connected with vertical section, and the other end is connected with horizontal segment；Described
The two ends of pulley are separately fixed at the junction of the second inclined support bar and horizontal segment, and pulley driving grug transportation tube is at deformation charge
Move up and down between the top of device body, inside and below.
Preferably, the outer layer covers of described second support and the second inclined support bar antistatic rubber layer, described pulley
Being respectively arranged at two ends with one layer of rubber ring, this rubber ring is positioned at the junction of the second inclined support bar and horizontal segment.
Preferably, the laying of the quoit of described deformation charge device body is netted, and the material of quoit uses steel
Or ferrum.
Preferably, described deformation charge device body is the cylindric of hollow, and described bearing has three or more than three；
On the circumference of deformation charge device body, the adjacent angle between two bearings is 360/n degree, wherein n >=3,
And be natural number.
Preferably, the external diameter 5cm less than the diameter in big gun hole of described deformation charge device body.
The present invention compared with prior art, has the advantage that and beneficial effect:
1, the deformation charge device body of the present invention includes quoit and is wrapped in the antistatic rubber layer of quoit, passes through
Quoit and the design of antistatic rubber layer to deformation charge device body, it is possible to functioned well as the effect of antistatic,
Prevent electric cap and cause producing unexpectedly because of the interference of electrostatic etc., and by the design of deformation charge device body,
Function well as the effect of protection blasthole hole wall, it is possible to prevent the Pumex on work surface from falling into big gun hole, caused
Big gun hole hole clipping, affect the situation of powder charge.
2, the bearing of the present invention is arranged on around deformation charge device body, and respectively with deformation charge device body even
Connect, stablizing of deformation charge device can be kept, and on bearing all parts, be provided with antistatic rubber layer, can
To be effectively prevented the electrostatic that the first support produces with ground friction.
3, the elevating mechanism of the present invention is corresponding with one of them bearing, and the transverse supporting rod of this bearing is provided with one and rides
Plate, can be conducive to charging, charging personnel to step on the footrests, controls pulley by grug transportation tube pull-up, by
More light in pull-up grug transportation tube, reduce the labor intensity of operating personnel.
4, the elevating mechanism of the present invention can utilize pulley driving grug transportation tube above deformation charge device body, internal
And move up and down between lower section, make the scene powder charge of on-site mixed explosive explosive loading truck more smooth, convenient, not only
Can overcome present stage due on grug transportation tube aperture, the big gun hole hole wall that up-down stretch causes in big gun hole stone fall into big gun hole
Phenomenon, it is also possible to reduce the labor intensity of operator, improve work situation, improve work efficiency.
5, the bearing of the present invention can arrange three or more than three, it is possible to better ensures that deformation charge device body
Stationarity, especially in the case of bearing arranges three, both can ensure that the steady of deformation charge device body, again might be used
To save material.
6, the laying of the quoit of the deformation charge device body of the present invention is netted, and the material of quoit can use
Steel or ferrum, netted quoit is surrounded by antistatic rubber layer, is so possible not only to save deformation charge device
Material cost, more can alleviate the weight of whole deformation charge device, it is simple to use.
7, the deformation charge device body of the present invention is the cylindric of hollow, its external diameter 5cm less than the diameter in big gun hole, this
Sample can make to leave between deformation charge device body and big gun hole enough gaps, and this gap can be detonator/electric cap
Payment to a porter provides protection zone, prevents work surface Pumex, blasthole hole wall falling rocks or because plug-hole etc. is by detonator/loading wire of electric detonator
Pound disconnected.
Accompanying drawing explanation
Fig. 1 is the plane graph of the on-site mixed explosive loading truck of emulsion explosive deformation charge device of the embodiment of the present invention 1.
Fig. 2 is plane graph during the on-site mixed explosive loading truck of emulsion explosive deformation charge device use of the embodiment of the present invention 1.
Fig. 3 is the sectional view of the on-site mixed explosive loading truck of emulsion explosive deformation charge device of the embodiment of the present invention 1.
Fig. 4 is the top view of the on-site mixed explosive loading truck of emulsion explosive deformation charge device of the embodiment of the present invention 1.
Fig. 5 is the top view of the on-site mixed explosive loading truck of emulsion explosive deformation charge device of the embodiment of the present invention 2.
Wherein, 1-deformation charge device body, 2-work surface, 3-blasthole hole wall, 4-detonator/loading wire of electric detonator, 5-is horizontal
Support bar, 6-the first support, 7-the first inclined support bar, 8-the second support, 9-the second inclined support bar, 10-pulley, 11-
Grug transportation tube, 12-pedal, 13-emulsion medicated bag, 14-Nonel detonator/electric cap.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment 1:
As shown in FIG. 1 to 3, the on-site mixed explosive loading truck of emulsion explosive deformation charge device of the present embodiment includes auxiliary dress
Medicine device body 1, bearing and elevating mechanism；
Described deformation charge device body 1, is used for protecting blasthole hole wall 3, including quoit be wrapped in the anti-of quoit
Electrostatic rubber layer, by designing the quoit of deformation charge device body 1 and antistatic rubber layer, it is possible to well
Serve the effect of antistatic, prevent electric cap and cause producing unexpectedly because of the interference of electrostatic etc..
In the present embodiment, the laying of the quoit of deformation charge device body 1 is netted, and the material of quoit is adopted
With steel, netted quoit is surrounded by antistatic rubber layer, is so possible not only to save the material of deformation charge device
Material cost, more can alleviate the weight of whole deformation charge device, it is simple to use.
In the present embodiment, the external diameter 5cm less than the diameter in big gun hole of deformation charge device body 1, so can make auxiliary
Helping and leave enough gaps between means for loading body 1 and big gun hole, this gap can carry for detonator/loading wire of electric detonator 4
For protection zone, prevent work surface 2 Pumex, blasthole hole wall 3 falling rocks or because plug-hole etc. is by detonator/loading wire of electric detonator 4
Pound disconnected.
Described bearing can have multiple, and multiple bearings are arranged on deformation charge device body 1 around, and respectively with auxiliary
Helping means for loading body 1 to connect, for supporting stablizing of deformation charge device body 1, each bearing includes horizontal support
Bar the 5, first support 6 and the first inclined support bar 7；One end of described transverse supporting rod 5 is connected with the first support 6, another
End is connected with deformation charge device body 1；One end of described first inclined support bar 7 is connected with the first support 6, another
End is connected with transverse supporting rod 5, deformation charge device body 1 respectively.
In the present embodiment, described transverse supporting rod the 5, first support 6 and the first inclined support bar 7 are by metallic rod and parcel
The antistatic rubber layer composition of metallic rod, at all parts of bearing, (transverse supporting rod the 5, first support 6 and first is oblique
Support bar 7) on be provided with antistatic rubber layer, the electrostatic that the first support 6 produces can be effectively prevented with ground friction.
In the present embodiment, the metallic rod of described transverse supporting rod 5 and the first inclined support bar 7 respectively with deformation charge device
The quoit of body 1 connects, the antistatic rubber layer of described transverse supporting rod 5 and the first inclined support bar 7 respectively with auxiliary
The antistatic rubber layer seamless link of means for loading body 1, the upper and lower of quoit can arrange thicker metal
Material, it is possible to preferably make deformation charge device have protected working face 2 Pumex and the effect of blasthole hole wall 3 falling rocks.
As shown in Figure 4, cylindric in hollow of described deformation charge device body 1, described bearing has four, arranges
Four bearings can better ensure that the stationarity of deformation charge device body 1, at the circle of deformation charge device body 1
Zhou Shang, the adjacent angle between two bearings is 360/4=90 degree.
Described elevating mechanism is arranged on deformation charge device body 1, including second support the 8, second inclined support bar 9,
Pulley 10 and grug transportation tube 11；Described second support 8 and the second inclined support bar 9 all have two, two the second supports 8
Symmetrically, two the second inclined support bars 9 are symmetrical, corresponding second inclined support bar 9 of each second support 8；
For each second support 8 and each second inclined support bar 9, the second support 8 is divided into vertical section and horizontal segment, described perpendicular
One end of straight section is connected with the quoit of deformation charge device body 1, and the other end is connected with horizontal segment, the second bearing diagonal
One end of bar 9 is connected with vertical section, and the other end is connected with horizontal segment；The two ends of described pulley 10 are separately fixed at second
The junction of inclined support bar 9 and horizontal segment, pulley 10 drives grug transportation tube 11 above deformation charge device body 1,
Move up and down between inside and below.
In the present embodiment, corresponding with one of them bearing at elevating mechanism, the transverse supporting rod 5 of this bearing is provided with
One pedal 12, described pedal 12 is connected with elevating mechanism, can be conducive to charging, charging personnel
Step down on pedal 12, control pulley 10 by grug transportation tube 11 pull-up, owing to pull-up grug transportation tube 11 is more light, fall
The low labor intensity of operating personnel.
In the present embodiment, the outer layer covers of described second support 8 and the second inclined support bar 9 antistatic rubber layer,
Described pulley 10 be respectively arranged at two ends with one layer of rubber ring (not shown), this rubber ring is positioned at the second inclined support bar 9
With the junction of horizontal segment, the two ends of pulley 10 can be made to be completely fixed in the second inclined support bar 9 and water by rubber ring
The junction of flat section, avoids foreign object to penetrate into simultaneously.
During as in figure 2 it is shown, the on-site mixed explosive loading truck of emulsion explosive deformation charge device of the present embodiment uses, will auxiliary
Means for loading body 1 is arranged on work surface 2, utilizes pulley 10 to drive grug transportation tube 11, makes grug transportation tube 11 by explosive
It is transported to emulsion medicated bag 13, by stepping on pedal 12 after powder charge, controls pulley 10 by grug transportation tube 11 pull-up, weight
These actions multiple, during until the explosive charge of emulsion medicated bag 13 filling is enough, by detonator/loading wire of electric detonator 4
Ignite Nonel detonator/electric cap 14 (if Nonel detonator, by detonator payment to a porter by quick-fried for leading in Nonel detonator
Pipe detonates, thus ignites Nonel detonator；If electric cap, directly electric cap is ignited by loading wire of electric detonator).
Embodiment 2:
Being mainly characterized by of the present embodiment: as it is shown in figure 5, cylindric in hollow of described deformation charge device body 1,
Described bearing has three, arranges three bearings and both can ensure that the steady of deformation charge device body 1, can save again
Material；On the circumference of deformation charge device body 1, the adjacent angle between two bearings is 360/3=120 degree.
Remaining is with embodiment 1.
Embodiment 3:
Being mainly characterized by of the present embodiment: the laying of the quoit of described deformation charge device body 1 is netted, and gold
The material belonging to circle uses ferrum.Remaining is with embodiment 1 or 2.
In sum, the deformation charge device body of the present invention includes quoit and is wrapped in the antistatic rubber of quoit
Layer, by designing the quoit of deformation charge device body and antistatic rubber layer, it is possible to has functioned well as anti-quiet
The effect of electricity, prevents electric cap and causes producing unexpectedly because of the interference of electrostatic etc., and by deformation charge device originally
The design of body, has functioned well as the effect of protection blasthole hole wall, it is possible to prevent the Pumex on work surface from falling into big gun hole,
The big gun hole hole clipping caused, the situation affecting powder charge；Bearing is arranged on around deformation charge device body, and respectively
It is connected with deformation charge device body, stablizing of deformation charge device can be kept, and set on bearing all parts
It is equipped with antistatic rubber layer, the electrostatic that the first support produces with ground friction can be effectively prevented；Elevating mechanism and its
In a bearing corresponding, the transverse supporting rod of this bearing is provided with a pedal, can be conducive to charging, dress
Medicine operating personnel steps on the footrests, controls pulley by grug transportation tube pull-up, owing to pull-up grug transportation tube is more light, reduction
The labor intensity of operating personnel；Elevating mechanism can utilize upper at deformation charge device body of pulley driving grug transportation tube
Side, move up and down between inside and below, make the scene powder charge of on-site mixed explosive explosive loading truck more smoothly, more square
Just, be possible not only to overcome present stage due on grug transportation tube aperture, the big gun hole hole wall that up-down stretch causes in big gun hole stone fall
Enter the phenomenon in big gun hole, it is also possible to reduce the labor intensity of operator, improve work situation, improve work efficiency.
The above, patent preferred embodiment the most of the present invention, but the protection domain of patent of the present invention is not limited to
This, as bearing can arrange five or five with first-class, any those familiar with the art is special in the present invention
In scope disclosed in profit, conceive equivalent or change in addition according to the technical scheme of patent of the present invention and patent of invention thereof
Become, broadly fall into the protection domain of patent of the present invention.
Claims (10)
1. an on-site mixed explosive loading truck of emulsion explosive deformation charge device, it is characterised in that: include deformation charge device
Body, bearing and elevating mechanism；Described deformation charge device body includes quoit and is wrapped in the antistatic of quoit
Rubber layer；Described bearing has multiple, and multiple bearings are arranged on around deformation charge device body, and respectively with auxiliary
Means for loading body connects；Described elevating mechanism is arranged on deformation charge device body.
One the most according to claim 1 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature exists
In: each bearing includes transverse supporting rod, the first support and the first inclined support bar；One end of described transverse supporting rod and first
Support connects, and the other end is connected with deformation charge device body；One end of described first inclined support bar is with the first support even
Connecing, the other end is connected with transverse supporting rod, deformation charge device body respectively.
One the most according to claim 2 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature exists
In: described transverse supporting rod, the first support and the first inclined support bar are by metallic rod and the antistatic rubber that is wrapped in metallic rod
Glue-line forms.
One the most according to claim 3 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature exists
In: the metallic rod of described transverse supporting rod and the first inclined support bar, quoit with deformation charge device body is connected respectively,
The antistatic rubber layer of described transverse supporting rod and the first inclined support bar respectively with the antistatic rubber of deformation charge device body
Layer seamless link.
One the most according to claim 2 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature exists
In: described elevating mechanism is corresponding with one of them bearing, and the transverse supporting rod of this bearing is provided with a pedal, institute
State pedal to be connected with elevating mechanism.
One the most according to claim 1 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature exists
In: described elevating mechanism includes the second support, the second inclined support bar, pulley and grug transportation tube；Described second support and
Two inclined support bars all have two, and two the second supports are symmetrical, and two the second inclined support bars are symmetrical, Mei Ge
Corresponding second inclined support bar of two supports；For each second support and each second inclined support bar, the second support divides
For vertical section and horizontal segment, one end of described vertical section is connected with the quoit of deformation charge device body, the other end with
Horizontal segment connects, and one end of the second inclined support bar is connected with vertical section, and the other end is connected with horizontal segment；Described pulley
Two ends are separately fixed at the junction of the second inclined support bar and horizontal segment, and pulley driving grug transportation tube is at deformation charge device originally
Move up and down between the top of body, inside and below.
One the most according to claim 6 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature exists
In: the outer layer covers of described second support and the second inclined support bar antistatic rubber layer, and the two ends of described pulley are respectively
Being provided with one layer of rubber ring, this rubber ring is positioned at the junction of the second inclined support bar and horizontal segment.
8. according to the one on-site mixed explosive loading truck of emulsion explosive deformation charge device described in any one of claim 1-7,
It is characterized in that: the laying of the quoit of described deformation charge device body is netted, and the material of quoit uses steel
Or ferrum.
9. according to the one on-site mixed explosive loading truck of emulsion explosive deformation charge device described in any one of claim 1-7,
It is characterized in that: described deformation charge device body is the cylindric of hollow, described bearing has three or more than three；
On the circumference of deformation charge device body, the adjacent angle between two bearings is 360/n degree, wherein n >=3,
And be natural number.
One the most according to claim 9 on-site mixed explosive loading truck of emulsion explosive deformation charge device, its feature
It is: the external diameter 5cm less than the diameter in big gun hole of described deformation charge device body.
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| CN107588693A (en) * | 2017-10-22 | 2018-01-16 | 贵州大学 | The auxiliary body of the blast hole projectile filling of blasting engineering |
| CN107588693B (en) * | 2017-10-22 | 2023-05-09 | 贵州大学 | Auxiliary mechanism for charging blast holes in blasting engineering |
| CN114396841A (en) * | 2022-02-28 | 2022-04-26 | 安徽理工大学 | Device for charging and blocking coal-bed top plate upward blast holes and using method thereof |
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| CN105953668B (en) | 2018-06-29 |
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Address after: 511300 Guangdong city of Guangzhou province Zengcheng River Street Light Lianyi Village Road No. 28 Applicant after: Hongda blasting Co., Ltd. Address before: 511300 Guangdong city of Guangzhou province Zengcheng River Street Light Lianyi Village Road No. 28 Applicant before: Grand mining industry company limited |
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Address after: 511300 28 Luang Da Road, Lianyi village, Zeng Jiang Street, Zengcheng, Guangzhou, Guangdong Patentee after: Hongda Blasting Engineering Group Co.,Ltd. Address before: 511300 28 Luang Da Road, Lianyi village, Zeng Jiang Street, Zengcheng, Guangzhou, Guangdong Patentee before: HONGDA BLASTING Co.,Ltd. |
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