CN114837674A - High-energy air blasting impact device and method - Google Patents
High-energy air blasting impact device and method Download PDFInfo
- Publication number
- CN114837674A CN114837674A CN202210556437.8A CN202210556437A CN114837674A CN 114837674 A CN114837674 A CN 114837674A CN 202210556437 A CN202210556437 A CN 202210556437A CN 114837674 A CN114837674 A CN 114837674A
- Authority
- CN
- China
- Prior art keywords
- blasting
- pressure
- hole
- gas
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 268
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 239000002775 capsule Substances 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000009527 percussion Methods 0.000 claims 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 239000002360 explosive Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a high-energy air blasting impact device, which comprises a blasting assembly and a movement control assembly, wherein the blasting assembly is used for ejecting high-pressure gas to a blast hole, and the movement control assembly is used for controlling the blasting of the blasting assembly and driving the blasting assembly to move in the blast hole; the blasting assembly comprises an end head, a front end hole sealer, a blasting tube, a rear end hole sealer and a connecting tube which are sequentially arranged from front to back and connected through threads, the front end hole sealer and the rear end hole sealer are used for sealing the front end and the rear end of the blasting tube so as to prevent high-pressure gas from leaking, the blasting tube is provided with a perforation which can emit high-pressure gas into the blasting tube, and the connecting tube is used for being connected with the mobile control assembly; a high-energy air blasting impact method is also disclosed. The invention can not only continuously blast, but also adjust the blasting pressure according to the medium around the blasting.
Description
Technical Field
The invention belongs to the technical field of blasting in mines, traffic, underground engineering, urban construction and the like, and particularly relates to a high-energy air blasting impact device and method.
Background
Blasting technology is widely used in the fields of mine roadway excavation, traffic tunnel construction, urban construction and the like. Generally, the traditional blasting is explosive blasting, which is powerful but not easy to control and causes serious pollution, and the approval process of chemical explosives is complicated. In the prior art, a carbon dioxide phase change cracking blasting technology is adopted to overcome the defects of chemical explosive blasting, and the principle is that liquid carbon dioxide is heated to enable the volume of the liquid carbon dioxide to expand instantly, so that huge energy is generated by blasting to impact surrounding media, and the effect similar to that of explosive blasting is generated. However, each blasting cartridge of the carbon dioxide phase change fracturing device can be blasted only once, after blasting is finished, the device needs to be taken out to replace the blasting energy release sheet and fill liquid carbon dioxide, the operation is complex, especially when the carbon dioxide fracturing device is used for deep hole blasting and multiple blasting, a large amount of time is wasted on connecting and detaching the pushing pipe, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a high-energy air blasting impact device which can continuously blast and can adjust the blasting pressure according to the medium around the blasting.
Therefore, the technical scheme adopted by the invention is as follows: a high-energy air blasting impact device comprises a blasting assembly and a movement control assembly, wherein the blasting assembly is used for ejecting high-pressure gas to a blast hole, and the movement control assembly is used for controlling the blasting of the blasting assembly and driving the blasting assembly to move in the blast hole; the blasting assembly comprises an end head, a front end hole sealer, a blasting tube, a rear end hole sealer and a connecting tube which are sequentially arranged from front to back and connected through threads, the front end hole sealer and the rear end hole sealer are used for sealing the front end and the rear end of the blasting tube so as to prevent high-pressure gas from leaking, the blasting tube is provided with a perforation capable of ejecting high-pressure gas into the blasting tube, and the connecting tube is used for being connected with the mobile control assembly.
Preferably, a front-end high-pressure capsule is sleeved outside the middle part of the front-end hole sealing device, and a front-end high-pressure pipe used for filling an expansion material is arranged on the front-end high-pressure capsule; a rear end through hole for high-pressure gas to pass through is formed in the rear end hole sealing device, a rear end high-pressure capsule is sleeved outside the middle of the rear end hole sealing device, a rear end high-pressure pipe for filling expansion materials is arranged on the rear end high-pressure capsule, a connecting through hole is formed in the connecting pipe, and the diameters of the connecting through hole and the rear end through hole are equal;
the perforation is arranged at the front end of the blasting tube, a gas collection chamber for storing high-pressure gas is arranged in the blasting tube, the front end of the gas collection chamber is connected with the perforation through a connecting hole, a one-way electromagnetic valve for controlling the release of the high-pressure gas is arranged in the connecting hole, the rear end of the gas collection chamber is communicated with the front end of a rear end through hole through a one-way valve, and the one-way electromagnetic valve is provided with an electromagnetic valve wire for controlling the switch of the one-way electromagnetic valve.
Preferably, the outer side of the blasting pipe is provided with a blasting groove for the one-way solenoid valve wire and the front-end high-pressure pipe to pass through, the blasting groove is provided with a blasting sealing cover, two side walls of the blasting groove are provided with blasting grooves, a blasting sealing bulge is arranged on the blasting sealing cover at a position corresponding to the blasting groove, and when the blasting sealing bulge is clamped in the blasting groove, the blasting sealing cover is arranged on the blasting groove; a connecting groove for allowing a power line or a pipeline to pass through is formed in the outer side of the connecting pipe, a connecting sealing cover is arranged on the connecting groove, connecting grooves are formed in two side walls of the connecting groove, a connecting sealing bulge is arranged on the connecting sealing cover at a position corresponding to the connecting groove, and when the connecting sealing bulge is clamped in the connecting groove, the connecting sealing cover is arranged on the connecting groove; and a rear-end pipeline hole through which a power supply line or a pipeline passes is arranged in the rear-end hole sealing device.
Preferably, the front side and the rear side of the rear end hole sealing device are provided with yielding sections, the diameter of each yielding section is smaller than that of the middle of the rear end hole sealing device, and the yielding sections are used for facilitating the electric wires or pipelines to enter and exit the rear end pipeline holes.
It is further preferred, the control assembly that the removal control subassembly realizes the blasting including the propelling movement subassembly that drives the blasting subassembly and control blasting subassembly that the subassembly removed in the blast hole, the control assembly is including being used for the reducing joint who is connected with the connecting pipe, the other end of reducing joint passes through gaseous high-pressure line and is connected with the air feed jar, be provided with the three-way valve on the gaseous high-pressure line, the other end of three-way valve is provided with the release pipeline of taking the relief valve, be provided with the manometer that is used for detecting pipeline pressure on the gaseous high-pressure line, the air feed jar passes through air supply line and gas tank connection, the gas holder passes through the air storage pipeline and is connected with air compressor.
Preferably, the gas high-pressure pipe is connected with the gas supply tank through a first high-pressure valve, a second high-pressure valve is arranged on the gas high-pressure pipe, and the second high-pressure valve is located between the three-way valve and the gas supply tank.
Preferably, the front-end high-pressure pipe and the rear-end high-pressure pipe are connected with different liquid injection pumps after penetrating through the blast hole, and the electromagnetic valve wire is electrically connected with the electromagnetic valve controller after penetrating through the blast hole.
Further preferably, the air compressor is fixed on the movable plate trailer, and the air supply tank and the air storage tank are also fixed on the movable plate trailer through a fixing component.
Simultaneously, the high-energy air blasting impact method is also disclosed, based on the blasting impact device, the high-energy air blasting impact can be carried out, and the high-energy air blasting impact comprises the following steps:
s1: constructing the blasting holes on the coal rock mass according to the blasting design, wherein the diameters of the blasting holes are larger than that of the blasting device;
s2: assembling and putting the blasting impact device, and assembling the whole blasting impact device when the blasting tube is moved to a first blasting point in the blasting hole through the movement control assembly;
s3: blasting the first blasting point, firstly expanding the front-end high-pressure capsule and the rear-end high-pressure capsule to complete hole sealing of the front end and the rear end of the blasting pipe, then filling high-pressure gas into the blasting pipe through the movement control assembly, moving to a safe position after the completion of the inflation, opening the one-way electromagnetic valve, enabling the high-pressure gas to impact coal rock mass around the blasting hole of the blasting pipe section through the one-way electromagnetic valve and a perforation to generate cracks or breakage, thereby completing the blasting, if the blasting does not meet the requirement, continuing the blasting until the blasting requirement is met, and relieving the pressure of the front-end high-pressure capsule, the rear-end high-pressure capsule and the movement control assembly;
s4: blasting the next blasting point, moving the blasting tube to the next blasting point through the moving control assembly, and then repeating the step S3 to finish the blasting;
s5: and D, completing blasting of the whole blast hole, continuously repeating the step S4 to the blast point on the whole blast hole to complete blasting, meeting the blasting requirement, and after the blasting is completed, sequentially recovering the whole blasting device.
Further preferably, in blasting, the first blasting point is the deepest part of the blasting hole, and then blasting is performed by moving outwards in sequence.
The invention has the beneficial effects that: the high-pressure gas is conveyed into the blasting assembly through the movable control assembly and is controlled to be ejected out of the perforation of the blasting assembly, so that blasting is formed, the high-pressure gas is continuously conveyed into the blasting assembly through the movable control assembly, continuous blasting can be realized, any part does not need to be replaced, and the operation is convenient; the release of the high-pressure gas in the blasting assembly is controlled by the mobile control assembly, and the blasting pressure can be effectively adjusted, so that the blasting assembly is suitable for the blast holes in various environments; the gas for blasting can be directly formed by compressing air by the mobile control assembly, so that the cost is low and the source is wide; through the quantity of increase and decrease connecting pipe, enable whole device and be applicable to the blast hole of the different degree of depth to both ends all set up the hole packer around the blast tube, make it can realize the directional blasting of every blast point in the blast hole.
Drawings
Figure 1 is a schematic view of an explosive assembly according to the present invention.
Fig. 2 is an enlarged sectional view of a-a in fig. 1.
Fig. 3 is an enlarged sectional view of B-B in fig. 1.
Fig. 4 is an enlarged sectional view of C-C in fig. 1.
Fig. 5 is a schematic view of the present invention installed in a blast hole.
Description of reference numerals: 1-end head, 2-front end hole sealing device, 201-front end high pressure capsule, 202-front end high pressure pipe, 3-blasting pipe, 301-perforation, 302-air collection chamber, 303-connecting hole, 304-one-way solenoid valve, 305-one-way valve, 306-solenoid valve line, 307-blasting groove, 308-blasting sealing cover, 309-blasting sealing bulge, 310-blasting groove, 4-rear end hole sealing device, 401-rear end through hole, 402-rear end high pressure capsule, 403-rear end high pressure pipe, 404-rear end pipeline hole, 405-relief segment, 5-connecting pipe, 501-connecting through hole, 502-connecting groove, 503-connecting sealing cover, 504-connecting groove, 505-connecting sealing bulge, 6-reducing joint, 7-a gas high-pressure pipe, 8-an air supply tank, 9-a three-way valve, 10-a pressure relief valve, 11-a pressure relief pipeline, 12-a pressure gauge, 13-an air supply pipeline, 14-an air storage tank, 15-an air storage pipeline, 16-an air compressor, 17-a first high-pressure valve, 18-a second high-pressure valve, 19-a blast hole, 20-a liquid injection pump, 21-an electromagnetic valve controller, 22-a movable plate trailer, 23-a fixed assembly, 24-a third high-pressure valve and 25-a pushing assembly.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1-5, a high-energy air blasting impact device mainly comprises a blasting assembly and a mobile control assembly, wherein the blasting assembly is used for emitting high-pressure gas to a blasting hole, and the mobile control assembly is used for controlling the blasting assembly to blast and driving the blasting assembly to move in the blasting hole. The specific structure of the blasting assembly comprises an end head 1, a front end hole packer 2, a blasting pipe 3, a rear end hole packer 4 and a connecting pipe 5 which are sequentially arranged from front to back and connected through threads, wherein the front end hole packer 2 and the rear end hole packer 4 are used for sealing the front end and the rear end of the blasting pipe 3 so as to prevent high-pressure gas from leaking, a perforation 301 capable of ejecting high-pressure gas into the blasting hole is arranged on the blasting pipe 3, and the connecting pipe 5 is used for being connected with the mobile control assembly. Preferably, the end 1 is made of metal to increase wear resistance, and the conical head is used to reduce resistance when the end is pushed into the blast hole.
The front end hole sealing device 2 and the rear end hole sealing device 4 realize hole sealing through expansion of a high-pressure capsule, and the specific structure is as follows: a front-end high-pressure capsule 201 is sleeved outside the middle part of the front-end hole sealing device 2, and a front-end high-pressure pipe 202 used for filling expansion materials is arranged on the front-end high-pressure capsule 201; a rear-end high-pressure capsule 402 is sleeved outside the middle part of the rear-end hole sealing device 4, and a rear-end high-pressure pipe 403 for filling expansion materials is arranged on the rear-end high-pressure capsule 402. Preferably, pressure sensors are provided in the front end high pressure bladder 201 and the rear end high pressure bladder 402, and when the pressure inside the pressure sensors reaches a certain value, the injection of the dilatant into the corresponding high pressure bladder is stopped. An annular groove may be provided at the mounting positions of the front end high pressure bladder 201 and the rear end high pressure bladder 402, respectively, to prevent the high pressure bladder 201 from moving along the axis. The front end hole packer 2 can be adjusted to be a hollow structure according to the requirement so as to reduce the weight.
The perforation 301 is specifically arranged at the front end of the blasting tube 3, the diameter, the number and the position of the perforation 301 can be adjusted as required, a gas collection chamber 302 for storing high-pressure gas is arranged in the blasting tube 3, the front end of the gas collection chamber 302 is connected with the perforation 301 through a connecting hole 303, a one-way electromagnetic valve 304 for controlling the release of the high-pressure gas is arranged in the connecting hole 303, the one-way electromagnetic valve 304 is provided with an electromagnetic valve wire 306 for controlling the on-off of the one-way electromagnetic valve 304, and whether the high-pressure gas is emitted or not is realized by controlling the one-way electromagnetic valve 304. Preferably, a pressure sensor is disposed within the plenum 302 for measuring the real-time pressure of the gas within the plenum.
In order to facilitate the high-pressure gas to enter the gas collection chamber 302 of the blasting tube 3 from the inside of the movement control assembly, a rear end through hole 401 for the high-pressure gas to pass through is arranged in the rear end hole sealing device 4, a connecting through hole 501 is arranged in the connecting pipe 5, the diameters of the connecting through hole 501 and the rear end through hole 401 are equal, and the rear end of the gas collection chamber 302 is communicated with the front end of the rear end through hole 401 through a one-way valve 305.
In order to fix and protect the front end high pressure pipe and the solenoid valve line passing through the blasting tube 3, a blasting groove 307 for passing the one-way solenoid valve line and the front end high pressure pipe is provided on the outer side of the blasting tube 3, and a blasting sealing cover 308 is provided on the blasting groove 307. In order to ensure that the blasting cap 308 can be fixedly installed on the blasting groove 307, blasting grooves 310 are formed on both side walls of the blasting groove 307, and blasting sealing protrusions 309 are formed on the blasting cap 308 at positions corresponding to the blasting grooves 310. The burst sealing cap 308 is mounted on the burst groove 307 while the burst sealing protrusion 309 is caught in the burst groove 310. It is also possible to provide the burst sealing protrusion 309 as a burst sealing groove and a sealing ring between the burst sealing groove and the burst groove 310.
In order to fix and protect the high-pressure pipe and the solenoid valve line passing through the rear end hole packer 4, a rear end line hole 404 through which a power supply line or a pipeline passes is provided in the rear end hole packer 4.
In order to fix and protect the high-pressure pipe and the solenoid valve wire through the connection pipe 5, a connection groove 502 through which the power supply wire or the pipe passes is provided outside the connection pipe 5, and a connection sealing cover 503 is provided on the connection groove 502. In order to ensure that the connecting sealing cover 503 can be fixedly installed on the connecting groove 502, connecting grooves 504 are provided on both side walls of the connecting groove 502, and connecting sealing protrusions 505 are provided on the connecting sealing cover 503 at positions corresponding to the connecting grooves 504. When the coupling sealing projection 505 is caught in the coupling groove 504, the coupling sealing cover 503 is fitted on the coupling groove 504. The connecting sealing bulge can also be arranged as a connecting sealing groove, and a sealing ring is arranged between the connecting sealing groove and the connecting groove.
In order to facilitate the passing of the high-pressure pipe and the solenoid valve line into and out of the rear-end pipe line hole 404, yielding sections 405 are arranged on the front side and the rear side of the rear-end hole sealing device 4, and the diameter of each yielding section 405 is smaller than that of the middle of the rear-end hole sealing device 4.
The specific structure of the mobile control component comprises a pushing component 25 for driving the blasting component to move in the blasting hole and a control component for controlling the blasting component to blast, the control component comprises a reducing joint 6 for connecting with a connecting pipe 5, the other end of the reducing joint 6 is connected with an air supply tank 8 through a gas high-pressure pipe 7, the air supply tank 8 is connected with an air storage tank 14 through an air supply pipeline 13, the air supply line 13 is provided with a third high pressure valve 24, the air storage tank 14 is connected with the air compressor 16 through the air storage line 15, the air compressor 16 is mainly used for generating high-energy gas, and the gas tank 14 is mainly used for storing high-energy gas generated by the air compressor 16 and supplying high-pressure gas to the gas supply tank 8, the gas supply tank 8 directly supplies high-pressure gas to the blasting tube 3, and it can effectively reduce the number of times the air compressor 16 operates by receiving the high pressure gas supplied from the gas tank 14 to maintain its own high pressure.
For the convenience of pressure relief, a three-way valve 9 is arranged on the gas high-pressure pipe 7, and a pressure relief pipeline 11 with a pressure relief valve 10 is arranged at the other end of the three-way valve 9. In order to facilitate the real-time detection of the gas pressure on the gas high-pressure pipe, a pressure gauge 12 for detecting the pressure of the pipeline is arranged on the gas high-pressure pipe 7.
The gas high-pressure pipe 7 and the gas supply tank 8 are connected by a first high-pressure valve 17, a second high-pressure valve 18 is provided in the gas high-pressure pipe 7, and the second high-pressure valve 18 is located between the three-way valve 9 and the gas supply tank 8. The first high pressure valve 17 and the second high pressure valve 18 can form double insurance, and the blasting process is prevented from being influenced when one high pressure valve fails.
The front end high-pressure pipe 202 and the rear end high-pressure pipe 403 are connected with different liquid injection pumps 20 after penetrating through the blast hole 19, and the electromagnetic valve wire 306 is electrically connected with the electromagnetic valve controller 21 after penetrating through the blast hole. The operation and control are convenient to be carried out outside the blast hole 19.
To facilitate movement of the entire device, air compressor 16 is mounted on a movable cart 22, while supply tank 8 and air tank 14 are also mounted on movable cart 22 by mounting assembly 23.
Based on the high-energy air blasting impact device, the high-energy air blasting impact method comprises the following steps:
the first step is as follows: and constructing the blasting holes 19, namely constructing the blasting holes 19 on the coal rock body according to blasting design, wherein the diameter of the blasting holes 19 is larger than that of the blasting device, and the diameter of the blasting holes is not smaller than 90mm generally.
The second step is that: and (3) assembling and putting the blasting impact device, and when the blasting tube 3 is moved to the first blasting point in the blasting hole 19 through the movement control assembly, assembling the whole blasting impact device. The specific assembly process is as follows:
1. the one-way electromagnetic valve 304 and the one-way valve 305 are correspondingly installed in the blasting tube firstly, then the end 1, the front end hole sealing device 2 and the blasting tube 3 are sequentially connected through threads, then the front end high-pressure tube 202 is placed in the blasting groove 307, and the blasting sealing cover 308 is installed on the blasting groove 307, so that the front end high-pressure tube is prevented from being worn in the pushing process, part of assembled components are pushed into the blasting hole through the pushing component 25, and the rear end of the blasting tube 3 is located outside the blasting hole.
2. The rear end hole sealing device 4 is connected to the rear of the blasting tube 3 through threads, then the solenoid valve line 306 and the front end high pressure tube 202 enter the rear end line hole 404 through the abdication section on the front side, and then penetrate out of the abdication section 405 on the rear side, the solenoid valve line 306, the front end high pressure tube 202 and the rear end high pressure tube 403 are connected with the connecting tube 5 through threads, the solenoid valve line 306, the front end high pressure tube 202 and the rear end high pressure tube 403 are placed in the connecting groove 502, and the connecting sealing cover 503 is installed on the connecting groove 502. After the connection is completed, the blasting tube is pushed into the blasting hole completely through the pushing assembly 25.
3. The connecting pipes 5 are continuously connected until the blasting pipe 3 reaches the first blasting point in the blasting hole, namely the deepest blasting position, the connecting pipes 5 are stopped being connected, when each connecting pipe 5 is connected, the solenoid valve wire 306, the front-end high-pressure pipe 202 and the rear-end high-pressure pipe 403 are all required to be placed in the corresponding connecting groove 502, and the connecting groove 502 is covered with the connecting sealing cover 503. The front end portion can be pushed into the blast hole by the pushing assembly 25 after each connection of one connecting pipe, thereby reducing the space occupied by the whole device during assembly.
4. The front end high-pressure pipe 202 and the rear end high-pressure pipe 403 which pass through the blast hole 19 are connected with different liquid injection pumps 20 through the same, and the solenoid valve line 306 is electrically connected with the solenoid valve controller 21. The outermost connecting pipes 5 are connected through the reducer joints 6, and the control assemblies are connected, and the control assemblies can also be connected firstly.
The third step: blasting the first blasting point, specifically comprising the following steps:
1. and (3) hole sealing, namely closing all the high-pressure valves, injecting liquid into the front-end high-pressure capsules 201 and the rear-end high-pressure capsules 402 through an injection pump, so that the front-end high-pressure capsules 201 and the rear-end high-pressure capsules 402 are expanded, and the expansion pressure is not less than 20MPa (the specific expansion pressure can be tested and adjusted according to actual needs), thereby completing the hole sealing of the front end and the rear end of the blasting tube 3.
2. The air supply tank 8 is inflated, the air compressor 16 is started to work and inflate the air storage tank 14, when the pressure of the air in the air storage tank 14 reaches about 100MPa, the air compressor 16 is closed, the third high-pressure valve 24 is opened, high-pressure air is filled into the air supply tank 8, and after the high-pressure air in the air supply tank 8 and the air storage tank 14 reaches balance, the third high-pressure valve 24 is closed. The process is then repeated until the gas pressure in the supply tank 8 reaches 80-90Mpa and the gas pressure in the storage tank 14 reaches 100Mpa (where the gas pressure in the storage tank 14 and the gas pressure in the supply tank 8 can be adjusted and tested as needed), and the air compressor 16 and the third valve 24 are closed.
3. The gas collection chamber of the blasting tube 3 is inflated, the first high pressure valve 17 is opened slowly, the second high pressure valve 18 is opened slowly, so that the high pressure gas in the gas supply tank 8 enters the gas collection chamber 302 after being communicated with the high pressure tube 7 and the plurality of connecting tubes 5, the gas pressure in the gas collection chamber 302 is not less than 50MPa (the specific pressure can be tested and adjusted according to actual needs), when the gas supply tank 8 cannot supply gas into the gas collection chamber 302 once to achieve the designed blasting pressure, the first high pressure valve 17 and the second high pressure valve 18 can be closed first, the third high pressure valve 24 is opened, so that the gas storage tank 14 supplements the high pressure gas into the gas supply tank 8, and then the first high pressure valve 17 and the second high pressure valve 18 are opened after the third high pressure valve 24 is closed until the gas in the gas collection chamber 302 achieves the designed blasting pressure.
4. And (3) completing blasting, moving to a safe position, opening the one-way electromagnetic valve 304 through the electromagnetic valve controller 21, instantly releasing high-pressure gas in the gas collection chamber 302, punching a hole 301 through a connecting hole 303 to impact a coal rock mass at the periphery of the blasting hole 19 to enable the coal rock mass to generate cracks or be crushed, analyzing the blasting effect (the blasting effect can be detected by constructing a control hole at the periphery of the blasting hole) after blasting is completed, and continuing blasting until the blasting requirement is met when the blasting does not meet the requirement.
5. And (3) releasing pressure, namely releasing pressure of gas in a channel between the connecting pipe 5 and the blasting pipe 3 through a pressure relief valve 10 and a pressure relief pipeline 11, and then releasing pressure of the front-end high-pressure capsule 201 and the rear-end high-pressure capsule 402.
In the above process, the process of inflating the air supply tank 8 may be performed before sealing the hole.
The fourth step: and blasting the next blasting point, moving the whole blasting assembly outwards through the pushing assembly, taking down the connecting pipe 5 firstly when the connecting pipe 5 is finished exiting the blasting hole in the moving process, continuously moving outwards until the blasting pipe 3 moves to the next blasting point, and repeating the step of the third step to finish the blasting of the second blasting point.
The fifth step: and D, completing the blasting of the whole blasting hole 19, continuously repeating the fourth step to the blasting point on the whole blasting hole 19 to complete the blasting, meeting the blasting requirement, and after the blasting is completed, sequentially recovering the whole blasting device.
Claims (10)
1. The utility model provides a high energy air blasting percussion device which characterized in that: the device comprises a blasting assembly for ejecting high-pressure gas to a blasting hole and a movement control assembly for controlling the blasting assembly to blast and driving the blasting assembly to move in the blasting hole; the blasting subassembly includes that end (1), front end hole sealer (2), blast pipe (3), rear end hole sealer (4) and connecting pipe (5) that set gradually and pass through threaded connection from the front to the back, front end hole sealer (2) and rear end hole sealer (4) are used for sealing the front and back both ends of blast pipe (3) to prevent high-pressure gas leakage, be provided with perforation (301) that can jet out high-pressure gas in to the blast hole on blast pipe (3), connecting pipe (5) are used for being connected with the mobility control subassembly.
2. The high energy air blast impact device according to claim 1, characterized in that: a front-end high-pressure capsule (201) is sleeved outside the middle part of the front-end hole sealing device (2), and a front-end high-pressure pipe (202) used for filling expansion materials is arranged on the front-end high-pressure capsule (201); a rear end through hole (401) for high-pressure gas to pass through is formed in the rear end hole sealing device (4), a rear end high-pressure capsule (402) is sleeved outside the middle of the rear end hole sealing device (4), a rear end high-pressure pipe (403) for filling expansion materials is arranged on the rear end high-pressure capsule (402), a connecting through hole (501) is formed in the connecting pipe (5), and the diameters of the connecting through hole (501) and the rear end through hole (401) are equal;
the perforation (301) is arranged at the front end of the blasting tube (3), a gas collection chamber (302) used for storing high-pressure gas is arranged in the blasting tube (3), the front end of the gas collection chamber (302) is connected with the perforation (301) through a connecting hole (303), a one-way electromagnetic valve (304) used for controlling the release of the high-pressure gas is arranged in the connecting hole (303), the rear end of the gas collection chamber (302) is communicated with the front end of a rear end through hole (401) through a one-way valve (305), and the one-way electromagnetic valve (304) is provided with an electromagnetic valve wire (306) used for controlling the on and off of the one-way electromagnetic valve (304).
3. The high energy air blast impulsive unit of claim 2, further comprising: a blasting groove (307) for a one-way solenoid valve line and a front-end high-pressure pipe to pass through is formed in the outer side of the blasting pipe (3), a blasting sealing cover (308) is arranged on the blasting groove (307), blasting grooves (310) are formed in two side walls of the blasting groove (307), a blasting sealing protrusion (309) is arranged on the blasting sealing cover (308) at a position corresponding to the blasting grooves (310), and when the blasting sealing protrusion (309) is clamped in the blasting grooves (310), the blasting sealing cover (308) is installed on the blasting groove (307); a connecting groove (502) for passing a power line or a pipeline is formed in the outer side of the connecting pipe (5), a connecting sealing cover (503) is arranged on the connecting groove (502), connecting grooves (504) are formed in two side walls of the connecting groove (502), a connecting sealing bulge (505) is arranged on the connecting sealing cover (503) at a position corresponding to the connecting grooves (504), and when the connecting sealing bulge (505) is clamped in the connecting grooves (504), the connecting sealing cover (503) is installed on the connecting grooves (504); and a rear-end pipeline hole (404) through which a power supply line or a pipeline passes is arranged in the rear-end hole sealing device (4).
4. The high energy air blast impact device according to claim 3, characterized in that: the front side and the rear side of the rear end hole sealing device (4) are respectively provided with a position-yielding section (405), the diameter of the position-yielding section (405) is smaller than that of the middle part of the rear end hole sealing device (4), and the position-yielding section (405) is used for facilitating the wire or the pipeline to enter and exit the rear end pipeline hole (404).
5. A high energy air blast impulsive unit as claimed in claim 1, 2 or 4, in which: the control assembly that the removal control subassembly realizes blasting including drive blasting subassembly propelling movement's propelling movement subassembly and control blasting subassembly in the blast hole, the control assembly is including being used for reducing joint (6) be connected with connecting pipe (5), the other end of reducing joint (6) is passed through gas high-pressure tube (7) and is connected with gas supply tank (8), be provided with three-way valve (9) on gas high-pressure tube (7), the other end of three-way valve (9) is provided with pressure relief pipeline (11) of taking relief valve (10), be provided with manometer (12) that are used for detecting pipeline pressure on gas high-pressure tube (7), gas supply tank (8) are connected with gas holder (14) through air supply line (13), gas holder (14) are connected with air compressor (16) through gas storage pipeline (15).
6. The high energy air blast impact device according to claim 5, characterized in that: the gas high-pressure pipe (7) is connected with the gas supply tank (8) through a first high-pressure valve (17), a second high-pressure valve (18) is arranged on the gas high-pressure pipe (7), and the second high-pressure valve (18) is located between the three-way valve (9) and the gas supply tank (8).
7. The high energy air blast impulsive unit of claim 2, further comprising: the front end high-pressure pipe (202) and the rear end high-pressure pipe (403) are connected with different liquid injection pumps (20) after penetrating through the blasting holes (19), and the electromagnetic valve wire (306) is electrically connected with the electromagnetic valve controller (21) after penetrating through the blasting holes.
8. The high energy air blast impact device according to claim 5, characterized in that: the air compressor (16) is fixed on the movable plate trailer (22), and the air supply tank (8) and the air storage tank (14) are also fixed on the movable plate trailer (22) through a fixing component (23).
9. A high-energy air blasting impact method is characterized in that: the percussion blasting apparatus of any one of claims 2 to 8, capable of performing high energy air percussion blasting, said high energy air percussion blasting comprising the steps of:
s1: constructing the blasting holes (19), namely constructing the blasting holes (19) on the coal rock mass according to blasting design, wherein the diameter of the blasting holes (19) is larger than that of the blasting device;
s2: assembling and putting the blasting impact device, and assembling the whole blasting impact device when the blasting tube (3) is moved to a first blasting point in the blasting hole (19) through the movement control assembly;
s3: blasting a first blasting point, firstly expanding a front-end high-pressure capsule (201) and a rear-end high-pressure capsule (402) to complete hole sealing of the front end and the rear end of a blasting pipe (3), then filling high-pressure gas into the blasting pipe (3) through a mobile control assembly, moving to a safe position after the filling is completed, opening a one-way electromagnetic valve (304), enabling the high-pressure gas to impact coal rock mass around a blasting hole (19) in a blasting pipe section through the one-way electromagnetic valve (304) and a perforation (301) to enable the coal rock mass to generate cracks or be broken, thereby completing the blasting, if the blasting does not meet the requirement, continuing the blasting until the blasting requirement is met, and relieving the pressure of the front-end high-pressure capsule (201), the rear-end high-pressure capsule (402) and the mobile control assembly;
s4: blasting the next blasting point, moving the blasting tube (3) to the next blasting point through the moving control assembly, and then repeating the step S3 to finish blasting;
s5: and D, completing blasting of the whole blast hole (19), continuously repeating the step S4 to the blast points on the whole blast hole (19) to complete blasting, meeting the blasting requirement, and sequentially recovering the whole blasting device after all the blasting is completed.
10. The high energy air blast impact method according to claim 9, characterized in that: when blasting, the first blast point is the deepest part of the blast hole (19), and then the blast holes are sequentially moved outwards to blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556437.8A CN114837674A (en) | 2022-05-19 | 2022-05-19 | High-energy air blasting impact device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210556437.8A CN114837674A (en) | 2022-05-19 | 2022-05-19 | High-energy air blasting impact device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837674A true CN114837674A (en) | 2022-08-02 |
Family
ID=82571539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210556437.8A Pending CN114837674A (en) | 2022-05-19 | 2022-05-19 | High-energy air blasting impact device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116393227A (en) * | 2023-04-20 | 2023-07-07 | 重庆大学 | Hydrogen explosion ore crushing equipment and crushing method |
-
2022
- 2022-05-19 CN CN202210556437.8A patent/CN114837674A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116393227A (en) * | 2023-04-20 | 2023-07-07 | 重庆大学 | Hydrogen explosion ore crushing equipment and crushing method |
| CN116393227B (en) * | 2023-04-20 | 2024-06-07 | 重庆大学 | Hydrogen explosion ore crushing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109252846B (en) | The high pressure air pulse ripples periodically hammering anti-reflection system and method for coal body | |
| CN106679500B (en) | A kind of two-stage light gas gun driven with Hydrogen Energy | |
| CN111255454A (en) | Method for directional roof cutting and pressure relief of hard roof of coal mine | |
| CN107063009A (en) | A kind of micro- blasting technology that shakes of subway two-wire longspan tunnel | |
| CN114837674A (en) | High-energy air blasting impact device and method | |
| CN114165197B (en) | Pressure-relief and permeability-increasing device and method for pulse hydraulic fracturing coal seam | |
| CN110195580A (en) | A kind of gas-liquid two-phase synergy coal seam anti-reflection method | |
| US4669783A (en) | Process and apparatus for fragmenting rock and like material using explosion-free high pressure shock waves | |
| CN106839908B (en) | Liquid carbon dioxide phase transformation fracturing device deep hole pusher | |
| CN114000858B (en) | Combinable multi-tube liquid carbon dioxide fracturing device and application method thereof | |
| CN112629349B (en) | Integrated pipeline and tunnel rock burst prevention and treatment device and prevention and treatment method thereof | |
| CN114812283B (en) | Gas-water coupling fracturing device and method based on carbon dioxide fracturing | |
| EP2623615B1 (en) | Preventive maintenance method and apparatus for a structural components in a reactor pressure vessel | |
| CN115822543A (en) | Coal seam ultrasonic activation staged fracturing device and method | |
| CN215812291U (en) | Water pressure test device | |
| CN211012690U (en) | Anti water impact blasting structure of high-pressure water-rich section of tunnel engineering | |
| CN109723487B (en) | Gas pulsation quantum energy implantation pre-splitting permeability-increasing gas extraction method and device | |
| CN106225587A (en) | A kind of orientation gas blast device that can reuse and manufacture method thereof | |
| CN113503140A (en) | Two-stage bag pressurized strengthening hole sealing device and hole sealing method | |
| CN212362996U (en) | Blasting blocking dust suppression device | |
| CN114294001B (en) | Ultrasonic vibration and ultrasonic high-pressure pulse jet comprehensive rock drilling device and use method thereof | |
| CN113670789B (en) | Method and device for pressurized water test | |
| CN219200216U (en) | Carbon dioxide blasting cracking pipe | |
| CN106225589A (en) | A kind of multidirectional blasting fume blaster that can reuse and manufacture method thereof | |
| CN106223949A (en) | A kind of disposable column type glass fibre gas blast device and manufacture method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |