CN115479513A - Blasting method for reducing output of rubbles - Google Patents
Blasting method for reducing output of rubbles Download PDFInfo
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- CN115479513A CN115479513A CN202211204387.3A CN202211204387A CN115479513A CN 115479513 A CN115479513 A CN 115479513A CN 202211204387 A CN202211204387 A CN 202211204387A CN 115479513 A CN115479513 A CN 115479513A
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- blasting
- drilling
- rubbles
- reducing
- blasting method
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention relates to the technical field of engineering blasting, in particular to a blasting method for reducing output of rubbles. The blasting method for reducing the output of the rubble comprises the following steps: and (3) measuring and placing points: measuring the elevation of the operation area, and placing points by using GSP equipment; and (3) laying drill holes: calculating and determining parameters of each drill hole; drilling and blasting: drilling, namely filling explosives into the drill holes, and detonating the explosives in the adjacent drill holes at millisecond-level time intervals after the filling operation is finished; analyzing the rock mass collision process: shooting the collision condition of the rubbles during blasting by a high-definition camera, analyzing the collision effect of the rubbles under different delays, and determining reasonable delay time; and (3) measuring and comparing and analyzing after explosion: through the ore image after the explosion of unmanned aerial vehicle aerial photography, contrast and analysis. The blasting method for reducing the output of the stones, provided by the invention, has the advantages of reducing the output quantity of the stones, reducing the fault occurrence rate of the crushing system and reducing the maintenance cost of the crushing system.
Description
Technical Field
The invention relates to the technical field of engineering blasting, in particular to a blasting method for reducing output of rubbles.
Background
The engineering blasting is a technology for destroying the original structure of an object by using huge energy generated by explosive blasting, and is applied to stone excavation and mine exploitation engineering.
When the surface mine is blasted, blast holes are blasted in a slight difference sequence from a free surface to a rear row hole by hole, and the phenomenon that more broken stones are blasted occurs when the blast hole parameter design is unreasonable and the millisecond delay time is not properly selected in the mode.
More stones will affect the next procedure, including the material blocking nozzle, the current is too high to protect the belt in the system from stopping and scratching, and the above phenomena will cause the breakdown of the crushing system, which will increase the maintenance cost of the crushing system.
Therefore, there is a need to provide a new blasting method for reducing the output of the stones to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a blasting method for reducing output of the stones.
The blasting method for reducing the output of the rubbles comprises the following steps:
the method comprises the following steps: measuring and placing points;
measuring the elevation of the operation area, and placing points by using GSP equipment;
step two: arranging drill holes;
calculating and determining the size, position and depth of each drill hole;
step three: drilling and blasting;
s1: drilling;
drilling at the determined drilling position;
s2: filling and detonating explosives;
filling explosives into the drill holes one by one, and detonating the explosives in the adjacent drill holes at millisecond-level time intervals after the filling work is finished;
step four: analyzing the rock mass collision process;
erecting a high-definition camera, shooting the condition that the rubbles collide with each other during blasting through the high-definition camera, analyzing the effect of the mutual collision of the rubbles under different delays, and determining reasonable delay time;
step five: measuring and comparing and analyzing after explosion;
and opening the unmanned aerial vehicle and carrying out comparison and analysis on test results through the ore image after the unmanned aerial vehicle aerial shooting blasting.
Preferably, the bore diameters of the drill holes at different positions in the second step are the same, and the plurality of drill holes are distributed in a quincunx hole distribution mode.
Preferably, the drilling in the third step adopts a semi-automatic drilling mode, and when the drilling is carried out, protective equipment needs to be worn by workers.
Preferably, the explosive filled in the third step is divided into an upper part and a lower part, wherein the upper part adopts ammonium nitrate fuel oil explosive, the lower part adopts emulsion explosive, and the explosive filled in the third step adopts a continuous explosive filling mode.
Preferably, the high-definition camera erected in the fourth step should be erected at a safe position, and after the high-definition camera is opened, a worker should be far away from the high-definition camera and approach the high-definition camera again to operate after the blasting work is finished.
Preferably, the height that unmanned aerial vehicle took photo by plane in step five many times of experiments is in same height, just can use unmanned aerial vehicle to carry out the work of taking photo by plane after guaranteeing that the interior explosive of drilling is whole to explode.
Preferably, the analysis and comparison of the test results in the fifth step are performed by using image granularity analysis software, and the images shot by the unmanned aerial vehicle can be imported into the image granularity analysis software through bluetooth or data transmission equipment.
Preferably, the analysis result of the collision between the image shot by the high-definition camera in the fourth step and the rubble needs to be imported into a computer for storage, and a folder is established for distinguishing;
and fifthly, importing the images aerial photographed by the unmanned aerial vehicle and the results obtained by the image granularity analysis software into a computer for storage, and establishing folder division.
Compared with the related art, the blasting method for reducing the output of the rubble has the following beneficial effects:
1. according to the invention, a mode of sequentially detonating between adjacent blast holes at millisecond-level time intervals is adopted, the blast holes which are blasted first form blasting funnels, for the blast holes which are blasted later, free surfaces are increased equivalently, the adjacent blast holes are detonated, and rock blocks generated by blasting meet in the air, so that the rock block breakage is effectively increased by using the blasting, the purpose of reducing the output quantity of rubbles is achieved, the fault occurrence rate of a breaking system is reduced, and the maintenance cost of the breaking system is reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
The blasting method for reducing output of the rubbles provided by the embodiment of the invention comprises the following embodiments:
the first embodiment is as follows:
the method comprises the following steps: measuring and placing points;
measuring the elevation of the operation area, and placing points by using GSP equipment;
step two: arranging drill holes;
setting the parameters of the hole network to be 4.5 x 3.5, selecting quincunx holes for the hole network, and setting the blast hole burden area to be 15.75m 2 Adjusting the backfill height of the rear row to be 4m, wherein the backfill height of the head row is unchanged because the individual flying stones are controlled to be blasted in the process;
step three: drilling and blasting;
s1: drilling;
drilling at the determined drilling position, wherein drilling personnel can perform drilling by means of semi-automatic drilling equipment, and meanwhile, the drilling work is performed on the premise that the drilling personnel wear protective equipment, the protective equipment comprises protective clothing, helmets, gloves and the like, and the aperture of each hole is the same;
s2: filling and detonating explosives;
filling explosives into the drill holes one by one and continuously, wherein the upper explosive is 100KG ammonium nitrate fuel oil explosive, the lower explosive is 100KG emulsion explosive, and after the filling work is finished, the explosives in adjacent drill holes are detonated by controlling a discharge delay 25MS and a booster train delay 42 MS;
step four: analyzing a rock mass collision process;
erecting a high-definition camera, shooting the condition that the rubbles collide with each other during blasting through the high-definition camera, analyzing the effect of the mutual collision of the rubbles under different delays, determining reasonable delay time, erecting the high-definition camera at a safe position, enabling a worker to be away from the high-definition camera in time after the high-definition camera is opened, and finally enabling the worker to be close to the high-definition camera to close or perform other operations after the blasting operation is finished, pouring images shot by the high-definition camera into a computer through Bluetooth or data transmission equipment for data storage, and establishing a folder for the images shot by the high-definition camera, wherein the folder is signed with shooting time and a first rubble collision analysis result;
step five: measuring, comparing and analyzing after explosion;
open unmanned aerial vehicle and through the ore image after the unmanned aerial vehicle aerial photography blasting, carry out test result contrast and analysis, ensure that can use unmanned aerial vehicle to carry out the work of taking photo by plane after the whole explosions of explosive in the drilling, the analysis contrast of test result uses image granularity analysis software to go on, the image accessible bluetooth or the leading-in image granularity analysis software of data transmission equipment of unmanned aerial vehicle aerial photography, the analysis contrast result should carry out data storage through the computer with the image of taking photo by plane together after coming out, and establish the folder, folder signature should have time of taking photo by plane and first data analysis contrast result, make things convenient for follow-up observation.
Table one: blasting parameters of amphibole type magnetic ore part after first optimization
Example two:
the method comprises the following steps: measuring and placing points;
measuring the elevation of the operation area, and placing points by using GSP equipment;
step two: arranging drill holes;
setting the parameters of the hole network to be 4.2 x 3.5, wherein the hole network adopts quincunx hole distribution, and the blast hole burden area is 14.7m 2 Adjusting the backfill height of the rear row to be 4m, wherein the backfill height of the head row is unchanged because the blasting of individual flying stones is controlled in the process;
step three: drilling and blasting;
s1: drilling operation;
drilling at the determined drilling position, wherein drilling personnel can perform drilling by means of semi-automatic drilling equipment, and meanwhile, the drilling work is performed on the premise that the drilling personnel wear protective equipment, the protective equipment comprises protective clothing, helmets, gloves and the like, and the aperture of each hole is the same;
s2: filling and detonating explosives;
filling explosives into the drill holes one by one and continuously, wherein the upper explosive is 100KG ammonium nitrate fuel oil explosive, the lower explosive is 100KG emulsion explosive, and after the filling work is finished, the explosives in adjacent drill holes are detonated by a control discharge delay 17MS and an explosion propagation delay 42 MS;
step four: analyzing the rock mass collision process;
erecting a high-definition camera, shooting the condition that the rubbles collide with each other during blasting through the high-definition camera, analyzing the effect of the mutual collision of the rubbles under different delays, determining reasonable delay time, erecting the high-definition camera at a safe position, enabling a worker to be away from the high-definition camera in time after the high-definition camera is opened, and finally enabling the worker to be close to the high-definition camera to close or perform other operations after the blasting operation is finished, pouring images shot by the high-definition camera into a computer through Bluetooth or data transmission equipment for data storage, and establishing a folder for the images shot by the high-definition camera, wherein the folder is signed with shooting time and a first rubble collision analysis result;
step five: measuring, comparing and analyzing after explosion;
open unmanned aerial vehicle and through the ore image after the unmanned aerial vehicle blasting of taking photo by plane, carry out test result contrast and analysis, ensure that can use unmanned aerial vehicle to carry out the work of taking photo by plane after the whole explosions of explosive in the drilling, the analysis contrast of test result uses image granularity analysis software to go on, the image accessible bluetooth or the leading-in image granularity analysis software of data transmission equipment that unmanned aerial vehicle took photo by plane, the analysis contrast result should carry out data storage through the computer with the image of taking photo by plane together after coming out, and establish the folder, folder signature should have time of taking photo by plane and the first data analysis contrast result, make things convenient for follow-up observation.
A second table: blasting parameters of amphibole type magnetic ore part after second optimization
Example three:
the method comprises the following steps: measuring and placing points;
measuring the elevation of the operation area, and placing points by using GSP equipment;
step two: arranging drill holes;
setting the parameters of the hole network to be 4 x 4, selecting quincunx cloth holes for the hole network, and setting the load area of blast holes to be 16m 2 Adjusting the backfill height of the rear row to be 4m, wherein the backfill height of the head row is unchanged because the individual flying stones are controlled to be blasted in the process;
step three: drilling and blasting;
s1: drilling;
drilling at the determined drilling position, wherein drilling personnel can perform drilling by means of semi-automatic drilling equipment, and meanwhile, the drilling work is performed on the premise that the drilling personnel wear protective equipment, the protective equipment comprises protective clothing, helmets, gloves and the like, and the aperture of each hole is the same;
s2: filling and detonating explosives;
filling explosives into the drill holes one by one and continuously, wherein the upper explosive is 100KG ammonium nitrate fuel oil explosive, the lower explosive is 120KG emulsion explosive, and after filling work is finished, controlling a discharge delay 17MS and a booster train delay 42MS to detonate the explosives in adjacent drill holes;
step four: analyzing the rock mass collision process;
erecting a high-definition camera, shooting the condition that the rubbles collide with each other during blasting through the high-definition camera, analyzing the effect of the mutual collision of the rubbles under different delays, determining reasonable delay time, erecting the high-definition camera at a safe position, enabling a worker to be away from the high-definition camera in time after the high-definition camera is opened, and finally enabling the worker to be close to the high-definition camera to close or perform other operations after the blasting operation is finished, pouring images shot by the high-definition camera into a computer through Bluetooth or data transmission equipment for data storage, and establishing a folder for the images shot by the high-definition camera, wherein the folder is signed with shooting time and a first rubble collision analysis result;
step five: measuring and comparing and analyzing after explosion;
open unmanned aerial vehicle and through the ore image after the unmanned aerial vehicle aerial photography blasting, carry out test result contrast and analysis, ensure that can use unmanned aerial vehicle to carry out the work of taking photo by plane after the whole explosions of explosive in the drilling, the analysis contrast of test result uses image granularity analysis software to go on, the image accessible bluetooth or the leading-in image granularity analysis software of data transmission equipment of unmanned aerial vehicle aerial photography, the analysis contrast result should carry out data storage through the computer with the image of taking photo by plane together after coming out, and establish the folder, folder signature should have time of taking photo by plane and first data analysis contrast result, make things convenient for follow-up observation.
A third table: blasting parameters of amphibole type magnetic ore part after third optimization
Finally, the blasting parameters of the amphibole type magnetic ores are determined to be 4 x 4m, the top is backfilled by 4m, the charging structure is continuous charging, the parameters are that 120kg of emulsion explosive at the bottom and 100kg of ammonium nitrate fuel oil explosive at the upper part are used, and the time selection parameters are 17ms of inter-hole delay and 42ms of inter-row delay.
By optimizing blasting parameters, the quantity of the stones is obviously reduced, and the purpose of reducing the output of the stones is achieved. The comparison is as follows:
| item | P80 | P50 | Maximum size (rice) | Yield of the product |
| Before taking measures | 0.36 | 0.18 | 1.1 | 0.31％ |
| After taking measures | 0.32 | 0.21 | 0.7 | 0.22％ |
Table four: comparison of the quantity of the front and rear pieces
The circuits and controls involved in the present invention are all the prior art, and are not described herein in detail.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. A blasting method for reducing output of slate, comprising the steps of:
the method comprises the following steps: measuring and placing points;
measuring the elevation of the operation area, and placing points by using GSP equipment;
step two: arranging drill holes;
calculating and determining the size, position and depth of each drill hole;
step three: drilling and blasting;
s1: drilling;
drilling at the determined drilling position;
s2: filling and detonating explosives;
filling explosives into the drill holes one by one, and detonating the explosives in the adjacent drill holes at millisecond-level time intervals after the filling work is finished;
step four: analyzing a rock mass collision process;
erecting a high-definition camera, shooting the condition that the rubbles collide with each other during blasting through the high-definition camera, analyzing the effect of collision of the rubbles under different delays, and determining reasonable delay time;
step five: measuring and comparing and analyzing after explosion;
and opening the unmanned aerial vehicle and carrying out comparison and analysis on test results through the ore image after the unmanned aerial vehicle aerial shooting blasting.
2. The blasting method of claim 1, wherein the holes drilled in different positions in step two are all the same in diameter, and a plurality of the holes are arranged in a quincunx pattern.
3. The blasting method for reducing output of the flaked stones according to claim 1, wherein the drilling in the third step is performed in a semi-automatic drilling manner, and protective equipment is worn by workers during drilling.
4. A blasting method for reducing output of flaked stones according to claim 1, wherein the explosive loading in step three is divided into an upper part and a lower part, wherein the upper part adopts ammonium nitrate fuel oil explosive, the lower part adopts emulsion explosive, and the explosive loading in step three adopts a continuous charging mode.
5. The blasting method for reducing output of the rubbles according to claim 1, wherein the high definition cameras erected in the fourth step should be erected at safe positions, the workers should be far away from the high definition cameras after the high definition cameras are turned on, and the workers should be close to the high definition cameras to operate after the blasting work is finished.
6. A blasting method for reducing output of rubbles according to claim 1 wherein the height of aerial photography by the unmanned aerial vehicle in the five tests is the same height, and aerial photography by the unmanned aerial vehicle can be carried out only after the explosives in the drill hole are fully exploded.
7. A blasting method for reducing output of rubbles according to claim 1 wherein the analysis and comparison of the test results in step five is performed using image granularity analysis software, and the images taken by the drone can be imported into the image granularity analysis software via bluetooth or data transmission equipment.
8. The blasting method for reducing output of the rubble according to claim 1, wherein the images shot by the high-definition camera in the fourth step and the analysis result of the collision of the rubble need to be imported into a computer for storage, and a folder is established for distinguishing;
and fifthly, importing the images aerial photographed by the unmanned aerial vehicle and the results obtained by the image granularity analysis software into a computer for storage, and establishing folder division.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211204387.3A CN115479513A (en) | 2022-09-29 | 2022-09-29 | Blasting method for reducing output of rubbles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211204387.3A CN115479513A (en) | 2022-09-29 | 2022-09-29 | Blasting method for reducing output of rubbles |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817423U (en) * | 2010-07-02 | 2011-05-04 | 高要市南虹化工有限公司 | Packaged explosive for underwater demolition |
| CN109708549A (en) * | 2019-02-20 | 2019-05-03 | 中国水利水电第八工程局有限公司 | The automatic adjusting method of the drill-and-blast method of gradating material |
| US20200250355A1 (en) * | 2019-02-05 | 2020-08-06 | Dyno Nobel Inc. | Systems for automated blast design planning and methods related thereto |
| CN113343759A (en) * | 2021-04-28 | 2021-09-03 | 鞍钢矿业爆破有限公司 | Method for evaluating damage effect of open-pit blasting flying stones by using unmanned aerial vehicle |
| KR20220062719A (en) * | 2020-11-09 | 2022-05-17 | 주식회사 한화 | Blasting design device, blasting system and operation method of the same |
-
2022
- 2022-09-29 CN CN202211204387.3A patent/CN115479513A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817423U (en) * | 2010-07-02 | 2011-05-04 | 高要市南虹化工有限公司 | Packaged explosive for underwater demolition |
| US20200250355A1 (en) * | 2019-02-05 | 2020-08-06 | Dyno Nobel Inc. | Systems for automated blast design planning and methods related thereto |
| CN109708549A (en) * | 2019-02-20 | 2019-05-03 | 中国水利水电第八工程局有限公司 | The automatic adjusting method of the drill-and-blast method of gradating material |
| KR20220062719A (en) * | 2020-11-09 | 2022-05-17 | 주식회사 한화 | Blasting design device, blasting system and operation method of the same |
| CN113343759A (en) * | 2021-04-28 | 2021-09-03 | 鞍钢矿业爆破有限公司 | Method for evaluating damage effect of open-pit blasting flying stones by using unmanned aerial vehicle |
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