CN111854552A - Top plate deep hole energy-gathering blasting device - Google Patents
Top plate deep hole energy-gathering blasting device Download PDFInfo
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- CN111854552A CN111854552A CN201910347979.2A CN201910347979A CN111854552A CN 111854552 A CN111854552 A CN 111854552A CN 201910347979 A CN201910347979 A CN 201910347979A CN 111854552 A CN111854552 A CN 111854552A
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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 discloses a top plate deep hole energy-gathering blasting device and a using method thereof, and aims to solve the problems of the existing blasting energy-gathering pipe. This product includes pulley box, first energy gathering pipe and second energy gathering pipe, install the dead lever on the pulley box, first closing cap is installed to the upper end of first energy gathering pipe, is provided with the thimble on the first closing cap, installs the hoist cable in the pulley box and the hoist cable passes the thimble, and the second closing cap is installed to the lower extreme of second energy gathering pipe and the lower extreme of first energy gathering pipe and the upper end of second energy gathering pipe are fixed mutually. The first energy collecting pipe and the second energy collecting pipe of the product can be automatically connected without an auxiliary joint, the length of the energy collecting pipe is adjustable, the energy collecting pipe can be flexibly connected and intercepted according to design requirements, the adaptability is strong, the energy collecting pipe is lifted into a drill hole by using a pulley and a sling, the design is ingenious, and the use is simple; this product mounting means is unique, uses the mode installation that the pulley promoted to the drilling of roof in for the first time, has improved installation effectiveness and installation quality greatly.
Description
Technical Field
The invention relates to a large range, in particular to a top plate deep hole energy-gathering blasting device.
Background
At present, when energy-gathered blasting is carried out on all rock stratum top plates, all the explosive charging processes are carried out by jacking the energy-gathered pipes with the explosive charges into a drill hole by using steel pipes or other mounting tools, and in the construction process, the physical power of operators is greatly consumed, so that the construction progress is slowed down. Therefore, how to place explosives in the top plate for directional blasting becomes a difficult problem for all mining personnel, and the problem is solved, so that the method has very important economic benefit and social value for reducing coal mine bottom plate accidents and accelerating the pushing and mining progress.
The utility model with patent number 2004200186110 provides a directional fracture blasting energy-collecting tube, which comprises a tube body, a front conical positioning cap and a rear positioning plug, wherein a longitudinal cutting seam is arranged between external threads at two ends, the rear positioning plug is a sealing cover during installation, the inner part of the sealing cover is provided with threads, and the outer diameter of the sealing cover is slightly larger than the diameter of the tube body; however, the device is only suitable for shallow blast hole blasting and is easy to slide out when the top plate deep hole cohesive energy blasting is charged, and people are also researching in relevant aspects.
Disclosure of Invention
An embodiment of the present invention provides a top plate deep hole energy-gathered blasting device to solve the problems in the background art.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
The utility model provides a roof deep hole is gathered can demolition unit, including pulley box, first gathering can pipe and second gathering can pipe, pulley box, first gathering can pipe and second gathering can pipe all install in the big gun hole, install the dead lever on the pulley box and during the dead lever inserts drilling, first closing cap is installed to the upper end of first gathering can pipe, be provided with the thimble on the first closing cap, install the hoist cable in the pulley box and the hoist cable passes the thimble, the second closing cap is installed and the lower extreme of first gathering can pipe and the upper end of second gathering can pipe are fixed mutually to the lower extreme of second gathering can pipe, the surface of first gathering can pipe and second gathering can pipe all is opened there is the gathering can the hole.
As a further scheme of the embodiment of the invention: the second sealing cover is provided with a lead hole for leading out a lead of the detonator.
As a further scheme of the embodiment of the invention: the fixed rod adopts ribbed steel bars with the diameter of 14-18mm, the lower end of the fixed rod is welded to the box body of the pulley box, the upper end of the fixed rod is matched with the mining resin anchoring cartridge anchor to be fixed into a drill hole, the whole pulley box is fixed to the bottom of the drill hole, and the energy-collecting tube can be conveniently lifted subsequently.
As a further scheme of the embodiment of the invention: the pulley box is a special box body and consists of a shell, pulleys and a rotating shaft, wherein the shell is made of a plate with the thickness of 3-5mm, the pulleys are steel wheels with the diameter of 40mm, grooves are formed in the upper parts of the pulleys and can clamp sling wires, and round holes are formed in the middle parts of the pulleys and can be penetrated through by the rotating shaft; the rotating shaft is made of bearing steel with the diameter of 5-10mm, and two ends of the rotating shaft are embedded on the shell.
As a further scheme of the embodiment of the invention: the shell is made of metal materials, so that the price is low and the processing is convenient.
As a further scheme of the embodiment of the invention: the first sealing cover is made of steel and made of metal, the wall thickness is 2-4mm, the inner diameter of the first sealing cover is slightly larger than the outer diameter of the first energy gathering pipe, and a hanging ring is arranged at the upper part of the first sealing cover and is convenient to penetrate through and bind with a sling, so that the energy gathering pipe is lifted.
As a further scheme of the embodiment of the invention: the first energy gathering pipe is made of PVC and provided with energy gathering holes on the surface, the outer diameter of the pipe body is 40-80mm, the wall thickness is 2-4mm, the length of the pipe body of the first energy gathering pipe is 1-2 m, the diameter of the energy gathering holes is 4-8mm, and the distance is 6-8 mm.
As a further scheme of the embodiment of the invention: the second energy gathering pipe is a reducing energy gathering pipe, one end of the second energy gathering pipe comprises a joint and can be directly connected with the first energy gathering pipe without additionally using the joint for connection, energy gathering holes are arranged at the position right opposite to the surface of the pipe body of the second energy gathering pipe, the outer diameter of the pipe body of the second energy gathering pipe is 40-80mm, the wall thickness is 2-4mm, the length of the pipe body of the second energy gathering pipe is 1-2 m, the diameter of each energy gathering hole is 4-8mm, and the distance is 6-8 mm.
As a further scheme of the embodiment of the invention: the second sealing cover is an energy-gathering pipe sealing cover made of PVC (polyvinyl chloride), a lead hole is drilled in the middle of the second sealing cover, and the diameter of the lead hole is 8-10mm, so that the lead of the detonator can be conveniently led out.
As a further scheme of the embodiment of the invention: the diameter of the sling is 2-3mm, the sling is woven by 7 multiplied by 7 strands of thin steel wires, the sling passes through the threading ring and is respectively connected with the pulley box and the hanging ring of the first sealing cover, and the first energy-gathering pipe can be lifted into the drill hole by pulling the sling downwards.
As a further scheme of the embodiment of the invention: the threading ring is a circular ring with the outer diameter of 13-16mm, which is made of steel wires with the diameter of 3-5mm, and the threading ring is welded on the outer side of the first sealing cover, so that a sling can conveniently pass through the threading ring, and the position of the sling is limited from deviating.
As a further scheme of the embodiment of the invention: the blast holes are drilled on the top plate of the roadway by a drilling machine, the diameter of each blast hole is generally 40-85mm according to the blasting design requirement, and the blast holes are used for placing energy-gathering pipes.
As a further scheme of the embodiment of the invention: the drill holes are the drill holes at the bottom of the blast hole, the aperture is 20-30mm, the hole depth is 30-40cm, and the fixing rod is anchored by matching with a resin cartridge so as to provide anchoring force for the pulley box.
The use method of the top plate deep hole energy-gathered blasting device comprises the following specific steps:
after blast holes are drilled, drilling holes in the center of the bottoms of the blast holes by using a small drill bit with the diameter of 16-22mm, and after the drilling is finished, blowing the drilling holes by using high-pressure air to ensure that the inside of the drilling holes is clean;
Secondly, the sling passes through a round hole at the lower part of the pulley box, passes through another round hole after passing around a pulley in the pulley box, and is bound on a hanging ring of the first sealing cover, so that the lengths of the slings at two ends are larger than the depth of the blast hole; welding a fixed rod at the central position of the upper part of the pulley box to form a whole;
step three, mounting resin cartridges at the upper parts of the fixing rods, feeding the cartridges into the drill holes, and fixing the fixing rods and the pulley boxes on the drill holes;
step four, wrapping the explosive around the detonating cord, binding the explosive with an adhesive tape, feeding the explosive into the first energy collecting tube, then bonding the first energy collecting tube and the first sealing cover with quick-drying universal glue, pulling the sling at the free section after the bonding is firm, and lifting the first energy collecting tube into the blast hole through the pulley guide;
step five, when the first energy-collecting pipe is lifted to a position 30-40cm away from the muzzle, the explosive is bound to the outer side of the detonating cord by using an adhesive tape, then the detonating cord and the bound explosive are sent into a second energy-collecting pipe, after quick-drying universal adhesive can be smeared on the upper portion of the second energy-collecting pipe, the second energy-collecting pipe can be directly connected with the lower portion of the first energy-collecting pipe, the sling at the free section is continuously pulled, and the connected energy-collecting pipe is lifted into the muzzle hole through the pulley guide;
Step six, continuing to repeat the operation of the step five according to design requirements until the total length of the energy collecting pipe reaches the design requirements, finally binding the detonator to the detonating cord, leading out the detonator lead from the lead hole of the second sealing cover, coating quick-drying universal glue on the inner side of the second sealing cover, connecting the detonator lead with the lower end of the last section of second energy collecting pipe, and sealing the explosive and the detonator in the second energy collecting pipe;
and seventhly, pulling the sling of the free section, lifting the connected energy-gathering pipe to the bottom of the blast hole, filling and blocking the blast hole of the rest section by using stemming at the moment, and cutting off the rest sling to finish the installation work of the top plate deep hole energy-gathering blasting device.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the first energy collecting pipe and the second energy collecting pipe of the product can be automatically connected without an auxiliary joint, the length of the energy collecting pipe is adjustable, the energy collecting pipe can be flexibly connected and intercepted according to design requirements, the adaptability is strong, the energy collecting pipe is lifted into a drill hole by using a pulley and a sling, the design is ingenious, and the use is simple;
the product is unique in installation mode, is installed in the drilled hole of the top plate in a pulley lifting mode for the first time, and greatly improves the installation efficiency and the installation quality;
The pulley box in the product has the advantages of simple structure, easy manufacture, stable performance and labor saving in installation.
Drawings
Fig. 1 is a schematic structural diagram of a top plate deep hole energy-gathering blasting device.
Fig. 2 is a schematic diagram of the internal structure of a pulley box in the top plate deep hole energy-gathering blasting device.
Fig. 3 is a schematic structural diagram of the top plate deep hole energy-gathering blasting device when the top plate deep hole energy-gathering blasting device is lifted in a blast hole.
Wherein: 1-fixing the rod; 2-a pulley box; 3-a first cover; 4-a first concentrator tube; 5-a second energy accumulating tube; 6-a second cover; 7-a sling; 8-a threading ring; 9-energy gathering holes; 10-a lead hole; 11-blast hole; 12-drilling; 21-a housing; 22-a pulley; 23-rotating shaft.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
The utility model provides a roof deep hole energy-gathered blasting device, including pulley box 2, first energy-gathered pipe 4 and second energy-gathered pipe 5, pulley box 2, first energy-gathered pipe 4 and second energy-gathered pipe 5 all install in big gun hole 11, install dead lever 1 on the pulley box 2 and dead lever 1 inserts in drilling 12, first closing cap 3 is installed to the upper end of first energy-gathered pipe 4, be provided with thimble 8 on the first closing cap 3, install hoist cable 7 in the pulley box 2 and hoist cable 7 passes thimble 8, second closing cap 6 is installed to the lower extreme of second energy-gathered pipe 5 and the lower extreme of first energy-gathered pipe 4 and the upper end of second energy-gathered pipe 5 are fixed mutually, energy-gathered hole 9 has all been opened on the surface of first energy-gathered pipe 4 and second energy-gathered pipe 5, this kind of structure can be installed the blasting energy-gathered pipe in pushing away the drilling 12 of adopting the working face roof fast, drilling 12 diameter and length are unrestricted.
In order to lead out the lead of the detonator, the second sealing cover 6 is provided with a lead hole 10, so that the use is convenient.
Furthermore, the fixing rod 1 is made of ribbed steel bars with the diameter of 14-18mm, the lower end of the fixing rod 1 is welded to the box body of the pulley box 2, the upper end of the fixing rod 1 is matched with the mining resin anchoring cartridge anchor to be fixed into the drill hole 12, the whole pulley box 2 is fixed to the bottom of the drill hole 12, and the energy-collecting tube can be conveniently lifted subsequently.
Furthermore, the pulley box 2 is a specially-made box body and consists of a shell 21, pulleys 22 and a rotating shaft 23, wherein the shell 21 is made of a plate with the thickness of 3-5mm, the pulleys 22 are steel wheels with the diameter of 40mm, grooves are formed in the upper portions of the pulleys 22 and can clamp the sling 7, and circular holes are formed in the middle portions of the pulleys 22 and can be penetrated through by the rotating shaft 23; the rotating shaft 23 is made of bearing steel with the diameter of 5-10mm, and two ends of the rotating shaft 23 are embedded on the shell 21.
Furthermore, the shell 21 is made of metal materials, so that the price is low and the processing is convenient.
Furthermore, the first sealing cover 3 is made of steel and made of metal, the wall thickness is 2-4mm, the inner diameter of the first sealing cover 3 is slightly larger than the outer diameter of the first energy gathering pipe 4, and a hanging ring is arranged on the upper portion of the first sealing cover 3 and is convenient to penetrate through and bind with a sling 7, so that the energy gathering pipe is lifted.
Furthermore, the second sealing cover 6 is an energy-gathering tube sealing cover made of PVC (polyvinyl chloride), a lead hole 10 is drilled in the middle of the second sealing cover 6, and the diameter of the lead hole 10 is 8-10mm, so that the lead of the detonator can be conveniently led out.
Furthermore, the blast holes 11 are holes drilled on the top plate of the roadway by a drilling machine, and the diameter of the blast holes 11 is generally 40-85mm according to the blasting design requirement and is used for placing energy-gathering pipes.
Further, the drill hole 12 is the drill hole 12 at the bottom of the blast hole 11, the aperture is 20-30mm, the hole depth is 30-40cm, and the fixing rod 1 is anchored by matching with a resin cartridge to provide anchoring force for the pulley box 2.
The use method of the top plate deep hole energy-gathered blasting device comprises the following specific steps:
after a blast hole 11 is drilled, drilling a hole 12 in the center of the bottom of the blast hole 11 by using a small drill bit with the diameter of 16-22mm, and after the hole 12 is drilled, blowing the hole 12 by using high-pressure air to ensure that the inside of the hole 12 is clean;
secondly, the sling 7 passes through a round hole at the lower part of the pulley box 2, the sling 7 passes through another round hole after passing around a pulley 22 in the pulley box 2, and then the sling 7 is bound on a hanging ring of the first sealing cover 3, so that the lengths of the slings 7 at two ends are larger than the depth of the blast hole 11; welding a fixed rod 1 at the central position of the upper part of a pulley box 2 to form a whole;
step three, mounting resin cartridges on the upper part of the fixed rod 1, feeding the resin cartridges into the drill hole 12, and fixing the fixed rod 1 and the pulley box 2 on the drill hole 12;
fourthly, wrapping the explosive around the detonating cord, binding the explosive with an adhesive tape, sending the explosive into the first energy collecting pipe 4, then bonding the first energy collecting pipe 4 and the first sealing cover 3 with quick-drying universal glue, pulling the sling 7 at the free section after the bonding is firm, and lifting the first energy collecting pipe 4 into the blast hole 11 through the guide of the pulley 22;
Step five, when the first energy collecting pipe 4 is lifted to a proper position, the explosive is bound on the outer side of the detonating cord by using an adhesive tape, then the detonating cord and the bound explosive are sent into the second energy collecting pipe 5, after the quick-drying universal adhesive can be coated on the upper part of the second energy collecting pipe 5, the second energy collecting pipe can be directly connected with the lower part of the first energy collecting pipe 4, the sling 7 of the free section is continuously pulled, and the connected energy collecting pipe is lifted into the blast hole 11 through the guide of the pulley 22;
step six, continuing to repeat the operation of the step five according to design requirements until the total length of the energy-gathering pipe reaches the design requirements, finally binding the detonator to the detonating cord, leading out the detonator lead from the lead hole 10 of the second sealing cover 6, coating quick-drying universal glue on the inner side of the second sealing cover 6, connecting the quick-drying universal glue with the lower end of the last section of second energy-gathering pipe 5, and sealing the explosive and the detonator in the second energy-gathering pipe 5;
and step seven, pulling the sling 7 of the free section, lifting the connected energy-gathering pipe to the bottom of the blast hole 11, filling and blocking the blast holes of the rest sections by using stemming at the moment, and cutting off the rest sling 7, thereby completing the installation work of the top plate deep hole energy-gathering blasting device.
Example 2
A roof deep hole energy-gathering blasting device comprises a pulley box 2, a first energy-gathering pipe 4 and a second energy-gathering pipe 5, wherein the pulley box 2, the first energy-gathering pipe 4 and the second energy-gathering pipe 5 are all installed in a blast hole 11, a fixing rod 1 is installed on the pulley box 2 and is inserted into a drill hole 12, a first sealing cover 3 is installed at the upper end of the first energy-gathering pipe 4, a threading ring 8 is arranged on the first sealing cover 3, a sling 7 is installed in the pulley box 2 and penetrates through the threading ring 8, a second sealing cover 6 is installed at the lower end of the second energy-gathering pipe 5, the lower end of the first energy-gathering pipe 4 is fixed with the upper end of the second energy-gathering pipe 5, energy-gathering holes 9 are formed in the surfaces of the first energy-gathering pipe 4 and the second energy-gathering pipe 5, the structure can be used for quickly installing and blasting the energy-gathering pipes in a drill hole 12 of a roof of a pushing and mining working face, the diameter and the length of, the labor intensity of field workers is reduced, and the field safety operation rules are met.
For convenience of processing, the first energy collecting pipe 4 is made of PVC and provided with energy collecting holes 9 on the surface, the outer diameter of a pipe body is 40-80mm, the wall thickness is 2-4mm, the length of the pipe body of the first energy collecting pipe 4 is 1-2 m, the diameter of each energy collecting hole 9 is 4-8mm, and the distance is 6-8 mm.
Furthermore, the second energy gathering pipe 5 is a reducing energy gathering pipe, one end of the second energy gathering pipe 5 comprises a joint, the second energy gathering pipe can be directly connected with the first energy gathering pipe 4 without additionally using the joint for connection, the surface of the pipe body of the second energy gathering pipe 5 is provided with energy gathering holes 9 right opposite to the position, the outer diameter of the pipe body of the second energy gathering pipe 5 is 40-80mm, the wall thickness is 2-4mm, the length of the pipe body of the second energy gathering pipe 5 is 1m-2m, the diameter of the energy gathering holes 9 is 4-8mm, and the distance is 6-8 mm.
Furthermore, the diameter of the sling 7 is 2-3mm, the sling 7 is woven by 7 multiplied by 7 strands of thin steel wires, the sling 7 passes through the threading ring 8 and is respectively connected with the pulley box 2 and the hanging ring of the first sealing cover 3, and the sling 7 is pulled downwards, so that the first energy-collecting pipe 4 can be lifted into the drill hole 12.
Furthermore, the threading ring 8 is a circular ring with the outer diameter of 13-16mm and made of steel wires with the diameter of 3-5mm, and the threading ring 8 is welded on the outer side of the first sealing cover 3, so that the sling 7 can pass through the circular ring conveniently, and the position of the sling 7 is prevented from deviating.
The use method of the top plate deep hole energy-gathered blasting device comprises the following specific steps:
After a blast hole 11 is drilled, drilling a hole 12 in the center of the bottom of the blast hole 11 by using a small drill bit with the diameter of 16-22mm, and after the hole 12 is drilled, blowing the hole 12 by using high-pressure air to ensure that the inside of the hole 12 is clean;
secondly, the sling 7 passes through a round hole at the lower part of the pulley box 2, the sling 7 passes through another round hole after passing around a pulley 22 in the pulley box 2, and then the sling 7 is bound on a hanging ring of the first sealing cover 3, so that the lengths of the slings 7 at two ends are larger than the depth of the blast hole 11; welding a fixed rod 1 at the central position of the upper part of a pulley box 2 to form a whole;
step three, mounting resin cartridges on the upper part of the fixed rod 1, feeding the resin cartridges into the drill hole 12, and fixing the fixed rod 1 and the pulley box 2 on the drill hole 12;
fourthly, wrapping the explosive around the detonating cord, binding the explosive with an adhesive tape, sending the explosive into the first energy collecting pipe 4, then bonding the first energy collecting pipe 4 and the first sealing cover 3 with quick-drying universal glue, pulling the sling 7 at the free section after the bonding is firm, and lifting the first energy collecting pipe 4 into the blast hole 11 through the guide of the pulley 22;
step five, when the first energy collecting pipe 4 is lifted to a proper position, the explosive is bound on the outer side of the detonating cord by using an adhesive tape, then the detonating cord and the bound explosive are sent into the second energy collecting pipe 5, after the quick-drying universal adhesive can be coated on the upper part of the second energy collecting pipe 5, the second energy collecting pipe can be directly connected with the lower part of the first energy collecting pipe 4, the sling 7 of the free section is continuously pulled, and the connected energy collecting pipe is lifted into the blast hole 11 through the guide of the pulley 22;
Step six, continuing to repeat the operation of the step five according to design requirements until the total length of the energy-gathering pipe reaches the design requirements, finally binding the detonator to the detonating cord, leading out the detonator lead from the lead hole 10 of the second sealing cover 6, coating quick-drying universal glue on the inner side of the second sealing cover 6, connecting the quick-drying universal glue with the lower end of the last section of second energy-gathering pipe 5, and sealing the explosive and the detonator in the second energy-gathering pipe 5;
and step seven, pulling the sling 7 of the free section, lifting the connected energy-gathering pipe to the bottom of the blast hole 11, filling and blocking the blast holes of the rest sections by using stemming at the moment, and cutting off the rest sling 7, thereby completing the installation work of the top plate deep hole energy-gathering blasting device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a roof deep hole is gathered can demolition unit, including pulley box (2), first gather can pipe (4) and second gather can pipe (5), a serial communication port, install dead lever (1) on pulley box (2), first closing cap (3) are installed to the upper end of first gather can pipe (4), be provided with through wires ring (8) on first closing cap (3), install hoist cable (7) and hoist cable (7) pass through wires ring (8) in pulley box (2), second closing cap (6) are installed and the lower extreme of first gather can pipe (4) and the upper end of second gather can pipe (5) are fixed mutually to the lower extreme of second gather can pipe (5), the surface of first gather can pipe (4) and second gather can pipe (5) all opens and has can hole (9).
2. The top plate deep hole energy-accumulating blasting device according to claim 1, wherein the second cover (6) is provided with a lead hole (10).
3. The top plate deep hole energy-gathered blasting device according to claim 1, wherein the fixing rod (1) is a ribbed steel bar with a diameter of 14-18 mm.
4. The top plate deep hole energy-gathering blasting device according to claim 1, wherein the pulley box (2) comprises a shell (21), a pulley (22) and a rotating shaft (23), a groove is formed in the upper portion of the pulley (22), a round hole is formed in the middle of the pulley (22), and two ends of the rotating shaft (23) are embedded in the shell (21).
5. The roof deep hole energy-gathering blasting device according to claim 1 or 2, characterized in that the inner diameter of the first cover (3) is slightly larger than the outer diameter of the first energy-gathering pipe (4), and a hanging ring is arranged at the upper part of the first cover (3).
6. The roof deep hole energy-accumulating blasting device according to claim 1, wherein the second energy-accumulating pipe (5) is a reducing energy-accumulating pipe, and one end of the second energy-accumulating pipe (5) comprises a joint.
7. The roof deep hole energy-gathering blasting device according to claim 5, characterized in that the diameter of the sling (7) is 2-3mm, and the sling (7) is connected with the pulley box (2) and the hanging ring of the first cover (3) respectively.
8. A method of using the top plate deep hole energy-gathered blasting device according to any one of claims 1 to 7, which comprises the following steps:
firstly, drilling a hole (12) in the center of the bottom of a blast hole (11), and blowing the hole (12) by using high-pressure air;
secondly, the sling (7) penetrates through a round hole in the lower part of the pulley box (2), the sling (7) passes through another round hole after passing around a pulley (22) in the pulley box (2), then the sling (7) is bound on a hanging ring of the first sealing cover (3), and the fixing rod (1) is welded in the center of the upper part of the pulley box (2);
Step three, feeding the resin coil into the drill hole (12), and fixing the fixing rod (1) and the pulley box (2) on the drill hole (12);
fourthly, wrapping and binding the explosive around the detonating cord, then feeding the explosive into the first energy collecting pipe (4), then bonding the first energy collecting pipe (4) with the first sealing cover (3), pulling the sling (7) at the free section after the bonding is firm, and lifting the first energy collecting pipe (4) into the blast hole (11);
step five, when the first energy-collecting pipe (4) is lifted to a position 30-40cm away from a blast hole, the explosive is bound to the outer side of the detonating cord by using an adhesive tape, then the detonating cord and the bound explosive are sent into a second energy-collecting pipe (5), after the upper part of the second energy-collecting pipe (5) is coated with adhesive, the second energy-collecting pipe is directly connected with the lower part of the first energy-collecting pipe (4), the sling (7) at the free section is continuously pulled, and the connected energy-collecting pipe is lifted into the blast hole (11);
step six, repeating the operation of the step five until the total length of the energy gathering pipes reaches the design requirement, finally binding the detonator to the detonating cord, leading out the detonator lead from the lead hole (10) of the second sealing cover (6), coating glue on the inner side of the second sealing cover (6), and connecting the second sealing cover (6) with the lower end of the last section of second energy gathering pipe (5);
and seventhly, pulling the sling (7) of the free section, lifting the connected energy-gathering pipe to the bottom of the blast hole (11), filling and blocking the blast hole of the rest section by using stemming at the moment, and cutting off the rest sling (7), thereby completing the installation work of the top plate deep hole energy-gathering blasting device.
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| CN112729034A (en) * | 2020-12-14 | 2021-04-30 | 湖南黄金洞矿业有限责任公司 | Blasting method for treating ore pass blockage in ascending mode |
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| CN111854552B (en) | 2022-08-30 |
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