CN111322919A - Deep hole blasting charging hole sealing device and using method thereof - Google Patents
Deep hole blasting charging hole sealing device and using method thereof Download PDFInfo
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- CN111322919A CN111322919A CN202010251783.6A CN202010251783A CN111322919A CN 111322919 A CN111322919 A CN 111322919A CN 202010251783 A CN202010251783 A CN 202010251783A CN 111322919 A CN111322919 A CN 111322919A
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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
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- 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
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Abstract
The invention provides a deep hole blasting charging hole sealing device and a using method thereof, wherein the device comprises: the blasting tube comprises a plurality of pipeline units which are connected end to end and tightly connected; the detonating cord is arranged in the blasting tube; the electric detonator is connected with one end of the detonating cord positioned at the tail part of the blasting tube; the hole sealing bag comprises a first hole sealing bag and a second hole sealing bag, and a grouting area is formed in a space between the first hole sealing bag and the second hole sealing bag; one end of the grouting pipe penetrates through the second hole sealing bag and is inserted into the first hole sealing bag through the grouting area; and one end of the exhaust slurry return pipe penetrates through the second hole sealing bag and enters the grouting area. The device is convenient to construct and operate, time-saving and labor-saving, low in cost, capable of greatly improving the construction efficiency, high in hole sealing quality and safety, capable of ensuring normal initiation, and capable of avoiding blasting and punching and blind blasting.
Description
Technical Field
The invention belongs to the technical field of deep hole blasting and sealing, and particularly relates to a charging and sealing device for deep hole blasting and a using method thereof.
Background
The deep hole blasting often will be carried out in the mining process, if the deep hole blasting ore drawing of metal mine, the roof cutting gob entry in the coal mine production process, deep hole blasting release engineering etc. these deep hole blasting engineering all need lay the explosive and hole sealing, because underground space is limited, and powder charge and hole sealing all need consume a large amount of time and manpower, especially coal mine roof deep hole presplitting, have more problems, the main performance is:
(1) the deep hole blasting is large in explosive loading and long in hole sealing length, the traditional stemming filling hole sealing method is time-consuming and labor-consuming, and in addition, the coal mine deep hole blasting management system is strict and needs longer time, so that normal mine production is seriously influenced.
(2) The hole sealing effect is greatly influenced by the quality and tamping degree of the stemming, and blasting and punching are easily caused under the conditions of low stemming strength and insufficient tamping degree, so that the carbon monoxide exceeds the standard, and even dust or gas explosion accidents are caused;
(3) in the tamping process of the stemming, the stemming line is easy to be broken, blind shots are easy to be generated, and great potential safety hazards are caused.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a charging and hole sealing device for deep hole blasting and a using method thereof, which are used for solving the problems that the existing hole sealing method for filling with foam mud in the deep hole blasting is time-consuming and labor-consuming and is easy to cause blasting punching or misfire.
In order to achieve the above purpose, the invention provides the following technical scheme:
a deep hole blasting powder charge sealing device, powder charge sealing device includes:
the blasting tube comprises a plurality of pipeline units which are connected end to end and are tightly connected, the blasting tube is filled with explosives, and the head of the blasting tube is arranged at the bottom of the blasting hole;
the detonating cord is arranged in the blasting tube and is axially and parallelly arranged along the blasting tube, and the detonating cord extends from the head to the tail of the blasting tube;
the electric detonator is connected with one end of the detonating cord positioned at the tail part of the blasting tube;
the hole sealing bag comprises a first hole sealing bag and a second hole sealing bag, the first hole sealing bag is arranged at the tail end of the blasting pipe and used for sealing the blasting pipe, the second hole sealing bag is arranged at the orifice part of the blasting hole and used for sealing the orifice, and a grouting area is formed in a space between the first hole sealing bag and the second hole sealing bag;
one end of the grouting pipe penetrates through the second hole sealing bag and is inserted into the first hole sealing bag through the grouting area, the grouting pipe is used for grouting into the hole sealing bag and the grouting area, and the other end of the grouting pipe is connected with a grouting pump;
and one end of the exhaust slurry return pipe penetrates through the second hole sealing bag and enters the grouting area.
In the deep hole blasting charge hole sealing device, preferably, the pipeline unit comprises an energy-collecting pipe, a gland and a connecting sleeve, the energy-collecting pipe is in snap fit with the gland, the connecting sleeve is detachably connected with the energy-collecting pipe, and the connecting sleeve is used for connecting two adjacent energy-collecting pipes.
In the deep hole blasting charging and sealing device, preferably, the head, the middle and the tail of the pipe body of the blasting pipe are provided with insertion holes, and the insertion holes are provided with anti-skid mechanisms in an inserted manner.
As above deep hole blasting powder charge hole sealing device, preferably, anti-skidding mechanism is for being the anti-skidding barb of loudspeaker type, anti-skidding barb is including the horizontal segment, vertical section and the slope section that connect gradually, the horizontal segment passes through the jack inserts into it is inside to gather the energy, vertical section with the horizontal segment is perpendicular, pastes and locates the pipe shaft, the slope section leans out the setting, anti-skidding barb has elasticity.
In the deep hole blasting charging and sealing device, preferably, the grouting pipe is provided with two check valves and two blasting valves, the two check valves are respectively located in the first hole sealing bag and the second hole sealing bag, and the blasting valves are located in the grouting area.
In the deep hole blasting charging and sealing device, preferably, the bearing pressure of the blasting valve is greater than the bearing pressure of the one-way valve.
In the deep hole blasting charging and hole sealing device, preferably, the minimum distance between the pipe opening at one end of the exhaust slurry return pipe and the expanded first hole sealing bag is L, and the value range of L is 10-20 cm.
In the deep hole blasting charging and sealing device, preferably, the head of the blasting tube is further provided with a guide device, the guide device is conical, and the root of the guide device is tightly connected with the blasting tube.
A use method of a deep hole blasting charging hole sealing device comprises the following steps:
s1, assembling and charging the blasting tube, connecting a plurality of pipeline units end to form the blasting tube, loading explosives in the blasting tube, then placing a detonating cord, and covering and sealing the blasting tube;
s2, installing the electric detonator, connecting and binding the electric detonator and the detonating cord together, putting the electric detonator into a blasting tube, leading out a detonator leg wire and connecting the blasting bus;
s3, pushing the blasting tube, namely pushing the assembled blasting tube to the bottom of a hole of a blasting hole, and installing an anti-skid barb on the blasting tube;
s4, assembling a hole sealing device, namely inserting one end of a grouting pipe into the first hole sealing bag after penetrating through the second hole sealing bag, so that the one-way valve is located inside the hole sealing bag, and the blasting valve is located between the first hole sealing bag and the second hole sealing bag; one end of the exhaust slurry return pipe penetrates through the second hole sealing bag to form a hole sealing device;
and S5, pushing and grouting the hole sealing device, pushing the hole sealing device to the opening of the blasting pipe, connecting the grouting pump with the other end of the grouting pipe, and stopping grouting until the other end of the exhaust slurry return pipe begins to discharge slurry.
In the method for using the device for sealing the deep hole blasting charge hole as described above, preferably, the grouting slurry in step S5 is a double-liquid quick-setting inorganic grouting material.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
the charging and hole sealing device for deep hole blasting comprises a charging section and a hole sealing section, wherein the blasting tube is provided with an anti-slip barb, the blasting tube can be prevented from slipping in a blasting hole, a positioning effect is achieved, a plurality of sections of energy-collecting tubes can be assembled and connected together through the detachable connecting sleeve, the blasting tube is simple in structure, the field charging efficiency is high, and the deep hole blasting of a drilled hole with the depth of tens of meters can be achieved.
Two bags are arranged in the hole sealing section, so that the powder charging section and the grouting area can be effectively isolated, the hole opening is sealed, the one-way grouting in the bags is ensured by the one-way valve and the blasting valve arranged on the grouting pipe, when certain pressure is reached, grouting is performed on the middle grouting area, and the grout is quickly solidified to realize hole sealing; the invention is also provided with the exhaust slurry return pipe, which can realize grouting in the area between the two bags, can clearly stop grouting time, can adjust the positions of the two bags and the lengths of the grouting pipe and the exhaust slurry return pipe according to engineering requirements, and realizes adjustable hole sealing depth. The device has the advantages of convenient construction operation, time and labor saving, low cost, high charging and hole sealing speed, capability of greatly improving the construction efficiency, high hole sealing quality and safety, capability of ensuring normal initiation, capability of avoiding the generation of blasting and punching and misfire, and convenience for industrial popularization and use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic structural diagram of a charging hole sealing device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of the structure of the hole sealing segment of FIG. 1;
FIG. 3 is a schematic cross-sectional view of a concentrator tube according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of the piping unit according to the embodiment of the present invention.
In the figure: 1. blasting a tube; 11. an energy-gathering tube; 12. a gland; 13. connecting sleeves; 2. a detonating cord; 3. an electric detonator; 31. a detonator leg wire; 4. anti-slip barbs; 51. a first hole sealing bag; 52. a second hole sealing bag; 53. a one-way valve; 54. a blast valve; 55. a plug; 6. grouting pipes; 7. an exhaust slurry return pipe; 8. a guide device; 9. and (4) blasting holes.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
As shown in fig. 1 to 4, according to an embodiment of the present invention, a deep hole blasting charging and sealing device is provided, the charging and sealing device includes two parts, a charging section L1 and a sealing section L2, which can realize fast charging and sealing, and greatly shorten the blasting preparation time, wherein the charging section includes a blasting tube 1, a detonating cord 2 and an electric detonator 3, the detonating cord 2 and the electric detonator 3 are installed in the blasting tube 1, and the charging section is used for placing explosives.
The explosion tube 1, explosion tube 1 include a plurality of end to end zonulae occludens's pipeline unit, are used for filling the explosive in the explosion tube 1, and the head of explosion tube 1 sets up in the bottom of blast hole 9.
The detonating cord 2 is arranged inside the blasting tube 1 and is arranged in parallel along the axial direction of the blasting tube 1, and the detonating cord 2 extends from the head part to the tail part of the blasting tube 1.
And one end of a detonating cord 2 positioned at the tail part of the blasting tube 1 is connected with the electric detonator 3. Preferably, there are two detonating cords 2 and two electric detonators 3, the electric detonators 3 are connected with the detonating cords 2 through wires, the two electric detonators 3 are connected in a parallel circuit, and the detonator leg wires 31 on the electric detonators 3 are led out of the blasting holes 9 after penetrating through the hole sealing sections.
Preferably, the electric detonator 3 is disposed in the last pipe unit at the tail of the blasting tube 1, and the two electric detonators 3 and the two detonating cords 2 are bound together to facilitate simultaneous detonations.
The hole sealing device of hole sealing section includes hole sealing bag, grout pipe 6 and exhaust and returns thick liquid pipe 7, and the hole sealing section is used for keeping apart the powder charge section to and realize that the thick liquid solidifies the hole sealing before the blasting.
The hole sealing bag comprises a first hole sealing bag 51 and a second hole sealing bag 52, the first hole sealing bag 51 is arranged at the tail end of the blasting pipe 1, the blasting hole 9 and the blasting pipe 1 are sealed after the first hole sealing bag 51 is expanded, the expanded first hole sealing bag 51 isolates the charge section from the hole sealing section, and slurry is prevented from flowing into the charge section during hole sealing and grouting; the second sealing bag 52 is arranged at the opening part of the blast hole 9 and used for sealing the opening, and a grouting area is formed in the space between the first sealing bag 51 and the second sealing bag 52. The length of the grouting area is determined according to the length of the blast hole 9 in the actual work.
One end of the grouting pipe 6 penetrates through the second hole sealing bag 52 and is inserted into the first hole sealing bag 51 through the grouting area, the grouting pipe 6 is used for grouting the inside of the hole sealing bag and the grouting area, and the other end of the grouting pipe 6 is connected with a grouting pump; in the embodiment of the invention, a plug 55 is arranged at one end of the grouting pipe 6, the plug 55 mainly plays a role in sealing, the grouting pipe 6 is sealed, and grout is poured in a grouting mode of a grouting pump. The grouting pipe 6 is also provided with two check valves 53 and two blasting valves 54, the two check valves 53 are respectively positioned in the first hole sealing bag 51 and the second hole sealing bag 52, and the blasting valves 54 are positioned in the grouting area; the bearing pressure of the burst valve 54 is greater than that of the check valve 53. When grouting is started at the hole sealing section, slurry passes through the grouting pipe 6, the one-way valve 53 is firstly opened, the slurry is discharged into the first hole sealing bag 51 and the second hole sealing bag 52, the pressure rises after the hole sealing bags expand, the blasting valve 54 on the grouting pipe 6 is opened, and then grouting is started to the grouting area.
In practical application, when the grouting pump performs grouting to the first hole sealing bag 51 and the second hole sealing bag 52 through the grouting pipe 6, the pressure index on the grouting pump gradually increases, and when the pressure index suddenly decreases, the bursting valve 54 is opened, and grouting to the middle section grouting area between the first hole sealing bag 51 and the second hole sealing bag 52 is started. The material used for grouting and sealing is a double-liquid quick-setting inorganic grouting material, and the grout is quickly solidified to reach certain strength, so that the sealing quality is ensured. Preferably, the grout pipe 6 is an aluminum-plastic composite pipe or a polyethylene pipe.
And one end of the exhaust slurry return pipe 7 penetrates through the second hole sealing bag 52 and enters the grouting area. Preferably, the exhaust pulp return pipe 7 is also an aluminum-plastic composite pipe or a polyethylene pipe.
In the specific embodiment of the invention, the minimum distance between the pipe orifice at one end of the exhaust slurry return pipe 7 and the expanded first hole sealing bag 51 is L, and the value range of L is 10-20 cm (for example, 11cm, 11.5cm, 12cm, 12.5cm, 13cm, 13.5cm, 14cm, 14.5cm, 15cm, 15.5cm, 16cm, 16.5cm, 17cm, 17.5cm, 18cm, 18.5cm, 19cm and 19.5 cm). If the value of L is too small, the distance between the exhaust slurry return pipe 7 and the expanded first hole sealing bag 51 is too short, so that the exhaust slurry return pipe 7 cannot timely and effectively discharge gas in a grouting area, and grouting of the middle section is blocked; if the value of L is too large, namely the distance between the exhaust slurry return pipe 7 and the first hole sealing bag 51 after complete expansion is too far, the grouting slurry in the middle grouting area cannot be filled, the slurry is too little, the hole sealing strength of the grouting area can be affected after the grouting material is solidified, the hole sealing effect and the hole sealing quality are reduced, and the potential danger of blasting and punching is generated. The exhaust slurry return pipe 7 has the function that when the grouting pipe 6 performs slurry injection in the grouting area, gas in the grouting area is timely exhausted and smoothly performs slurry injection, and after the slurry in the grouting area is filled, the slurry begins to return along the exhaust slurry return pipe 7 and overflows outwards, so that the slurry injection can be stopped when the slurry in the grouting area is full. In a word, the exhaust slurry return pipe 7 can play the double functions of early warning and safe grouting, and the hole sealing quality and the safety in the hole sealing process are improved.
In the embodiment of the invention, the head of the blasting tube 1 is also provided with a guiding device 8, the guiding device 8 is conical, and the root of the guiding device 8 is tightly connected with the blasting tube 1. The guiding device 8 plays a guiding role when the charging hole sealing device pushes the inside of the blast hole 9, so that the device can advance and push conveniently.
In the specific embodiment of the invention, the pipeline unit comprises the energy-collecting pipes 11, a gland 12 and a connecting sleeve 13, the energy-collecting pipes 11 and the gland 12 are in snap fit to form a closed space for placing explosive, the connecting sleeve 13 is detachably connected with the energy-collecting pipes 11, and the connecting sleeve 13 is used for connecting and fixing two adjacent energy-collecting pipes 11.
Preferably, the cross section of the energy collecting pipe 11 is an ellipse-like arc, two sides of the energy collecting pipe 11 are provided with conical grooves, two side end parts of the energy collecting pipe 11 are provided with straight sections, the two straight sections extend towards the inside of the ellipse and are oppositely arranged, and the straight sections are arranged in the horizontal direction; the free end of the straight section extends upwards and is provided with a clamping part; the gland 12 is arranged above the energy-collecting pipe 11, the cross section of the gland 12 is an elliptical arc matched with the energy-collecting pipe 11, the two end parts of the gland 12 extend inwards along the inner wall to form buckling parts, and the buckling parts are buckled and matched with the buckling parts to form a closed structure; the mining emulsion explosive is placed in the closed space inside the energy-gathering pipe 11; the connecting sleeve 13 is directly clamped at the joint of two corresponding sections of energy-collecting pipes 11 to connect any two sections of energy-collecting pipes 11, and the connecting sleeve 13 may connect and fix the two sections of energy-collecting pipes 11 together in other connecting manners in other embodiments, which is not limited in the present invention.
In the specific embodiment of the invention, jacks are arranged at the head part, the middle part and the tail part of the tube body of the blasting tube 1, and anti-skid mechanisms are inserted and arranged on the jacks; preferably, the anti-slip mechanism is a trumpet-shaped anti-slip barb 4, the jack is arranged at the bottom of the conical groove of the energy-gathering pipe 11, the anti-slip barb 4 comprises a horizontal section, a vertical section and an inclined section which are sequentially connected, the horizontal section is inserted into the energy-gathering pipe 11 through the jack, the vertical section is perpendicular to the horizontal section and is attached to the bottom of the conical groove of the energy-gathering pipe 11, the inclined section is obliquely arranged towards the outer side of the energy-gathering pipe 11 and extends into the hole wall of the blasting hole 9, and the anti-slip barb 4 is elastic and preferably made of spring steel; the distance formed by the tail parts of the inclined sections symmetrically distributed on the two sides of the energy collecting pipe 11 is larger than the diameter of the blast hole 9. When entering the inside of the blast hole 9, the inclined section is contracted by the resistance of the hole wall, so that the entering of the blast pipe 1 is not influenced; when blasting tube 1 has the gliding trend because of powder charge weight, the rake receives along the perpendicular outside power of slope section because blockking of pore wall, because the effect that blocks of pore wall, the tensile expansion of slope section (correspond the horn mouth between two anti-skidding barb 4 slope sections that set up promptly and open, the card is established at 1 inner wall of blasting tube), and anti-skidding barb 4's support can effectively prevent 1 landing of blasting tube, plays the positioning action.
Further preferably, the bottom of toper recess is provided with a plurality of jacks along the axis direction, and the jack is the tiny hole that the aperture is very thin, and its aperture is greater than or equal to anti-skidding barb 4's diameter, and the aperture of preferred jack equals with anti-skidding barb 4's diameter, is convenient for install anti-skidding barb 4, and a plurality of jacks symmetry evenly distributed are in gathering the both sides of managing 11. The antiskid barbs 4 are also provided with a plurality of grooves, and different quantities can be set according to the dosage requirement of the charge section. The antiskid barbs 4 are used for preventing the blasting tube 1 from sliding in the blasting holes 9 and have a positioning function.
In order to further understand the deep hole blasting charge sealing device, the invention also provides a use method of the deep hole blasting charge sealing device, which comprises the steps of firstly assembling and pushing the charge section into the blast hole 9, then assembling and pushing the sealing section into the blast hole 9, and finally sealing by grouting, wherein the steps are as follows:
s1, assembling and charging the blasting tube, connecting a plurality of pipeline units end to form the blasting tube 1, loading explosives in the blasting tube 1, then placing a detonating cord 2, and covering and sealing the blasting tube 1; the method specifically comprises the following steps: the mining emulsion explosive is formed by connecting a plurality of sections of energy-collecting pipes 11 through connecting sleeves 13, when the mining emulsion explosive is charged, two sides of the mining emulsion explosive are cut open, the mining emulsion explosive is placed into the energy-collecting pipes 11 and is uniformly pressed, then two detonating cords 2 are placed, and upper pressing covers 12 of the energy-collecting pipes 11 are buckled.
And S2, installing the electric detonator, namely connecting and binding two electric detonators 3 and two detonating cords 2 together in the last section of energy collecting tube 11, putting the blasting tube 1 in the energy collecting tube, leading out a detonator leg wire 31 and connecting the blasting bus with the blasting bus.
S3, pushing the blasting tube, pushing the assembled blasting tube 1 to the hole bottom of the blasting hole 9 after the blasting tube 1 is loaded and connected, and installing a plurality of anti-skid barbs 4 on the blasting tube 1 to prevent the blasting tube 1 and the blasting tube from slipping down.
S4, assembling a hole sealing device, wherein the hole sealing device of the hole sealing section comprises a first hole sealing bag 51, a second hole sealing bag 52, a grouting pipe 6 and an exhaust slurry return pipe 7, one end of the grouting pipe 6 penetrates through the second hole sealing bag 52 and then is inserted into the first hole sealing bag 51, so that the one-way valve 53 is located inside the hole sealing bag, and the blasting valve 54 is located between the first hole sealing bag 51 and the second hole sealing bag 52; and (3) enabling one end of the exhaust slurry return pipe 7 to penetrate through the second hole sealing bag 52 to form a hole sealing device.
S5, pushing and grouting the hole sealing device, namely, after the charge section is sent to the bottom of a blast hole 9, pushing the hole sealing device to the opening of the blast pipe 1 in the hole, and connecting a grouting pump with the other end of the grouting pipe 6 to start grouting; firstly, the first hole sealing bag 51 and the second hole sealing bag 52 are expanded to seal two ends and isolate a medicine loading area, then the middle part of a hole sealing section, namely a grouting area, starts grouting, air is discharged through the exhaust slurry return pipe 7, after a period of time, the grouting is started until the other end of the exhaust slurry return pipe 7, the grouting area of the middle part is filled with slurry, and the grouting is stopped. The grout injected into the hole sealing section is a double-liquid quick-setting inorganic grouting material, can be solidified within 5-8 min, reaches the hole sealing strength of the stemming, and can be blasted later.
In conclusion, the deep hole blasting, charging and hole sealing device comprises the charging section and the hole sealing section, the blasting tube is provided with the anti-skidding barbs, the blasting tube can be prevented from slipping in a blasting hole, the positioning effect is achieved, the multiple sections of energy-collecting tubes can be assembled and connected together through the detachable connecting sleeve, the blasting tube is simple in structure, the field charging efficiency is high, and the deep hole blasting of a drilling hole with the depth of tens of meters can be achieved.
Two bags are arranged in the hole sealing section, so that the powder filling section and the grouting area can be effectively isolated, and the hole opening is sealed; the one-way valve and the explosion valve arranged on the grouting pipe ensure one-way grouting in the bag, when certain pressure is reached, grouting is performed to the middle grouting area, and the grout is rapidly solidified to realize hole sealing of the explosion hole; the invention is also provided with the exhaust slurry return pipe, which can effectively realize the grouting of the grouting area between the two bags, can clearly stop the grouting time, can adjust the positions of the two bags and the lengths of the grouting pipe and the exhaust slurry return pipe according to the engineering requirement, and realizes the adjustable hole sealing depth. The device has the advantages of convenient construction operation, time and labor saving, low cost, high charging and hole sealing speed, capability of greatly improving the construction efficiency, high hole sealing quality and safety, capability of ensuring normal initiation, capability of avoiding the generation of blasting and punching and misfire, and convenience for industrial popularization and use.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a deep hole blasting powder charge hole sealing device which characterized in that, powder charge hole sealing device includes:
the blasting tube comprises a plurality of pipeline units which are connected end to end and are tightly connected, the blasting tube is filled with explosives, and the head of the blasting tube is arranged at the bottom of the blasting hole;
the detonating cord is arranged in the blasting tube and is axially and parallelly arranged along the blasting tube, and the detonating cord extends from the head to the tail of the blasting tube;
the electric detonator is connected with one end of the detonating cord positioned at the tail part of the blasting tube;
the hole sealing bag comprises a first hole sealing bag and a second hole sealing bag, the first hole sealing bag is arranged at the tail end of the blasting pipe and used for sealing the blasting pipe, the second hole sealing bag is arranged at the orifice part of the blasting hole and used for sealing the orifice, and a grouting area is formed in a space between the first hole sealing bag and the second hole sealing bag;
one end of the grouting pipe penetrates through the second hole sealing bag and is inserted into the first hole sealing bag through the grouting area, the grouting pipe is used for grouting into the hole sealing bag and the grouting area, and the other end of the grouting pipe is connected with a grouting pump;
and one end of the exhaust slurry return pipe penetrates through the second hole sealing bag and enters the grouting area.
2. The deep hole blasting charge sealing device of claim 1, wherein the pipe unit comprises an energy-collecting pipe, a gland and a connecting sleeve, the energy-collecting pipe and the gland are in snap fit, the connecting sleeve is detachably connected with the energy-collecting pipe, and the connecting sleeve is used for connecting two adjacent energy-collecting pipes.
3. The deep hole blasting charge sealing device according to claim 2, wherein the head, the middle and the tail of the blasting tube body are provided with jacks, and the jacks are provided with anti-skid mechanisms in an inserted manner.
4. The deep hole blasting charge sealing device of claim 3, wherein the antiskid mechanism is a trumpet-shaped antiskid barb, the antiskid barb comprises a horizontal section, a vertical section and an inclined section which are connected in sequence, the horizontal section is inserted into the energy collecting pipe through the jack, the vertical section is perpendicular to the horizontal section and is attached to the pipe body, the inclined section is arranged in an inclined mode, and the antiskid barb has elasticity.
5. The deep hole blasting charge sealing device according to claim 1, wherein two check valves and a blasting valve are arranged on the grouting pipe, the two check valves are respectively positioned inside the first sealing bag and the second sealing bag, and the blasting valve is positioned in the grouting area.
6. The deep hole blasting charge sealing device of claim 5, wherein the bearing pressure of the blasting valve is larger than that of the one-way valve.
7. The deep hole blasting charging and sealing device according to claim 1, wherein the minimum distance between the pipe orifice at one end of the exhaust slurry return pipe and the expanded first sealing bag is L, and the value range of L is 10-20 cm.
8. The hole sealing device for deep hole blasting charge of claim 1, wherein the head of the blasting tube is further provided with a guide device, the guide device is conical, and the root of the guide device is tightly connected with the blasting tube.
9. The use method of the deep hole blasting charge sealing device according to any one of claims 1 to 8, wherein the use method comprises the following steps:
s1, assembling and charging the blasting tube, connecting a plurality of pipeline units end to form the blasting tube, loading explosives in the blasting tube, then placing a detonating cord, and covering and sealing the blasting tube;
s2, installing the electric detonator, connecting and binding the electric detonator and the detonating cord together, putting the electric detonator into a blasting tube, leading out a detonator leg wire and connecting the blasting bus;
s3, pushing the blasting tube, namely pushing the assembled blasting tube to the bottom of a hole of a blasting hole, and installing an anti-skid barb on the blasting tube;
s4, assembling a hole sealing device, namely inserting one end of a grouting pipe into the first hole sealing bag after penetrating through the second hole sealing bag, so that the one-way valve is located inside the hole sealing bag, and the blasting valve is located between the first hole sealing bag and the second hole sealing bag; one end of the exhaust slurry return pipe penetrates through the second hole sealing bag to form a hole sealing device;
and S5, pushing and grouting the hole sealing device, pushing the hole sealing device to the opening of the blasting pipe, connecting the grouting pump with the other end of the grouting pipe, and stopping grouting until the other end of the exhaust slurry return pipe begins to discharge slurry.
10. The method for using the hole sealing device for deep hole blasting charge of claim 9, wherein the grouting slurry in the step S5 is a double-liquid rapid-setting inorganic grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251783.6A CN111322919A (en) | 2020-04-01 | 2020-04-01 | Deep hole blasting charging hole sealing device and using method thereof |
Applications Claiming Priority (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735356A (en) * | 2020-08-19 | 2020-10-02 | 宿州市金鼎安全技术股份有限公司 | Deep hole blasting and sealing process |
| CN113008092A (en) * | 2021-04-09 | 2021-06-22 | 核工业井巷建设集团有限公司 | Tunnel tunnelling is with stabilizing powder charge assembly device from dust fall material-saving energy-gathered pipe |
| CN113834396A (en) * | 2021-09-30 | 2021-12-24 | 山东科技大学 | Variable-non-coupling-coefficient deep hole charging structure and process |
| CN115574676A (en) * | 2022-11-10 | 2023-01-06 | 惠州市兴鲁节能科技有限公司 | Coal mine roof cutting and roadway retaining energy gathering device |
| CN117927237A (en) * | 2024-01-12 | 2024-04-26 | 中国矿业大学 | Directional roof cutting method for solid-liquid-gas three-phase coupling medium energy gathering blasting device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735356A (en) * | 2020-08-19 | 2020-10-02 | 宿州市金鼎安全技术股份有限公司 | Deep hole blasting and sealing process |
| CN113008092A (en) * | 2021-04-09 | 2021-06-22 | 核工业井巷建设集团有限公司 | Tunnel tunnelling is with stabilizing powder charge assembly device from dust fall material-saving energy-gathered pipe |
| CN113834396A (en) * | 2021-09-30 | 2021-12-24 | 山东科技大学 | Variable-non-coupling-coefficient deep hole charging structure and process |
| CN113834396B (en) * | 2021-09-30 | 2024-05-17 | 山东科技大学 | Deep hole charging structure with variable uncoupled coefficient and process |
| CN115574676A (en) * | 2022-11-10 | 2023-01-06 | 惠州市兴鲁节能科技有限公司 | Coal mine roof cutting and roadway retaining energy gathering device |
| CN115574676B (en) * | 2022-11-10 | 2024-03-29 | 惠州市兴鲁节能科技有限公司 | Colliery is cut top entry retaining and is gathered can device |
| CN117927237A (en) * | 2024-01-12 | 2024-04-26 | 中国矿业大学 | Directional roof cutting method for solid-liquid-gas three-phase coupling medium energy gathering blasting device |
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