CN110779406A - Variable-density sectional explosive charging method and device for on-site mixed emulsion explosive - Google Patents
Variable-density sectional explosive charging method and device for on-site mixed emulsion explosive Download PDFInfo
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- CN110779406A CN110779406A CN201910814560.3A CN201910814560A CN110779406A CN 110779406 A CN110779406 A CN 110779406A CN 201910814560 A CN201910814560 A CN 201910814560A CN 110779406 A CN110779406 A CN 110779406A
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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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Abstract
The invention discloses a variable-density sectional explosive loading method and a variable-density sectional explosive loading device for on-site mixed loading of emulsion explosives, and the variable-density sectional explosive loading method and the variable-density sectional explosive loading device comprise a substrate conveying unit, a sensitizing agent conveying unit, an accelerant conveying unit, a water ring former, a powder conveying pipe reel and a controller for controlling the sensitizing agent conveying unit, wherein the powder inlet end of the water ring former is connected with the substrate conveying unit, the sensitizing agent conveying unit and the accelerant conveying unit through pipelines, and the powder outlet end of the water ring former is connected with the powder conveying pipe reel.
Description
Technical Field
The invention relates to the technical field of emulsion explosives, in particular to a variable-density sectional explosive loading method and device for field mixed emulsion explosives.
Background
The method adopts an explosive field mixed loading vehicle to load raw materials or semi-finished products to a blasting field, and completes explosive preparation and blast hole charging simultaneously, so that unsafe factors and blasting cost in the explosive production, storage and transportation processes can be greatly reduced, and the method is a main development direction of engineering blasting.
The explosive field mixed loading can only realize single-density charging all the time, and the refined control blasting pays more attention to the mechanical characteristics according to blasting media while inheriting the traditional control blasting idea, and depends on the advanced and reliable detonation technology to realize the quantitative explosive explosion energy release and quantitative blasting action process control, so that the blasting process and effect are more controllable, the hazard effect is lower, the safety is higher, the environmental impact is less, and the economic effect is better. To achieve the purpose of fine blasting control, explosives with different densities need to be filled when deep hole blasting meets rock strata with different lithology or blasting design needs.
According to research, the main problems existing in the field mixed loading of emulsion explosive charging in China are as follows: (1) loading explosives with different densities or different types into the same blast hole by an operator; (2) the medicine charging equipment is adopted, and the medicine charging density is adjusted by stopping the machine to adjust the medicine-making technological parameters of the medicine charging equipment.
Disclosure of Invention
The present invention is directed to solving the above-described related art. Therefore, one purpose of the invention is to provide a variable-density sectional explosive loading device for on-site mixed emulsion explosives, the invention adopts a PID controller to design the filling amount of the matrix, the sensitizer and the accelerant required by different-density explosives according to different lithology or blasting design requirements, the controller controls the flow meter to meter the flow, and then the delivery amount of the delivery pump is used for adjusting the flow of the matrix, the sensitizer and the accelerant, thereby realizing the technology of uninterrupted variable-density sectional explosive loading.
The variable-density segmented explosive loading device for the on-site mixed emulsion explosive comprises a substrate conveying unit, a sensitizing agent conveying unit, an accelerating agent conveying unit, a water ring forming device, an explosive conveying pipe reel and a controller for controlling the sensitizing agent conveying unit, wherein the explosive inlet end of the water ring forming device is connected with the substrate conveying unit, the sensitizing agent conveying unit and the accelerating agent conveying unit through pipelines, and the explosive outlet end of the water ring forming device is connected with the explosive conveying pipe reel.
Preferably, the water ring former includes inner tube and outer tube, inner tube one end is equipped with first medicine mouth and the second of advancing and advances the medicine mouth, the inner tube other end stretches into in the outer tube and leaves the clearance between inner tube and the outer tube, it is equipped with out the pencil to be equipped with the third on the outer tube and advances medicine mouth and outer tube and keep away from inner tube one end.
Preferably, the drug delivery tube reel comprises a rotary shaft support, a rotary shaft for driving the rotary shaft support to rotate is installed at the center of the rotary shaft support, a hydraulic motor for driving the rotary shaft to rotate is arranged on the rotary shaft support, the rotary shaft support is provided with a drug inlet tube connected with a drug outlet tube, a drug delivery tube is spirally wound on the rotary shaft support, one end of the drug delivery tube is connected with the drug inlet tube, and a static sensitizer is installed at the other end of the drug delivery tube.
Preferably, the substrate conveying unit comprises a substrate bin, the substrate bin is connected with the first medicine inlet through a first pipeline, the substrate bin is connected with the first medicine inlet in the direction from the substrate bin to the first medicine inlet, and the first pipeline is sequentially provided with an electric valve, a filter, a first conveying pump and a first flow meter.
Preferably, the promoter conveying unit comprises a promoter box, the promoter box and the second drug inlet are connected through a second pipeline, the direction from the promoter box to the second drug inlet is arranged, and a second conveying pump and a second flowmeter are sequentially installed on the second pipeline.
Preferably, the sensitizer conveying unit comprises a sensitizer box, the sensitizer box is connected with the third medicine inlet through a third pipeline, the third pipeline is provided with a third conveying pump and a third flow meter in sequence along the direction from the sensitizer box to the third medicine inlet.
Preferably, the second pipeline and the third pipeline are both provided with manual valves.
Preferably, the controller is in signal connection with both the first delivery pump and the first flow meter, the controller is in signal connection with both the second delivery pump and the second flow meter, and the controller is in signal connection with both the third delivery pump and the third flow meter.
Preferably, the controller is a PID controller.
Preferably, the method steps are as follows:
s1: setting the numerical value of each section to be charged and transmitting the numerical value to a PID controller, and assuming that the charging amount of each section is Akg, Bkg and Ckg respectively;
s2: the PID controller counts to obtain production parameters under each density according to the explosive capacity and the explosive mass under three section density, namely, the latex matrix flow, the sensitizer flow and the accelerator flow under each degree;
s3: starting a substrate delivery pump, a sensitizer delivery pump and an accelerator delivery pump, controlling by a PID controller to enable the numerical values of a substrate flowmeter, a sensitizer flowmeter and an accelerator flowmeter to be X1L/h, Y1kg/h and Z1L/h respectively, then filling blast holes by the substrate delivery pump, the sensitizer delivery pump and the accelerator delivery pump respectively, and immediately and automatically executing second-stage charging after Akg is filled;
s4: the numerical values of a matrix flowmeter, a sensitizer flowmeter and an accelerant flowmeter are respectively X2L/h, Y2kg/h and Z2L/h under the control of a PID controller, and then third-stage charging is immediately and automatically executed after the blast holes are respectively charged with Bkg by a matrix delivery pump, a sensitizer delivery pump and an accelerant delivery pump;
s5: and (3) controlling by a PID controller to enable the numerical values of the matrix flowmeter, the sensitizer flowmeter and the accelerant flowmeter to be X3L/h, Y3kg/h and Z3L/h respectively, then filling the blast holes by a matrix delivery pump, a sensitizer delivery pump and an accelerant delivery pump respectively, stopping the operation of each delivery pump after Ckg is filled, and finishing the variable density charging.
The beneficial effects of the invention are as follows: the invention adopts the PID controller to design the filling amount of the matrix, the sensitizer and the accelerant required by the explosives with different densities according to different lithology or blasting design requirements, controls the flow meter to meter the flow through the controller, and then adjusts the flow of the matrix, the sensitizer and the accelerant through the delivery amount of the delivery pump, thereby realizing the technology of uninterrupted variable density sectional charging.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a variable-density sectional explosive charging method and a variable-density sectional explosive charging device for an on-site mixed emulsion explosive, which are provided by the invention;
FIG. 2 is a schematic structural diagram of a substrate conveying unit in the field mixed emulsion explosive variable-density segmented charging method and device;
FIG. 3 is a schematic structural diagram of a sensitizer conveying unit in the variable-density segmented charging method and device for the on-site mixed emulsion explosive provided by the invention;
FIG. 4 is a schematic structural diagram of an accelerator conveying unit in the field mixed emulsion explosive variable-density segmented charging method and device;
FIG. 5 is a schematic structural diagram of a water ring former in the field mixed emulsion explosive variable-density segmented charging method and device provided by the invention;
FIG. 6 is a schematic structural diagram of a loading pipe reel in the variable-density sectional loading method and the device for the on-site mixed loading of the emulsion explosive, which are provided by the invention;
FIG. 7 is a first circuit control schematic diagram of sectional charging in the field mixed emulsion explosive variable-density sectional charging method and device provided by the invention;
fig. 8 is a second circuit control schematic diagram of the variable-density sectional charging method and the sectional charging device for the on-site mixed emulsion explosive, which are provided by the invention.
In the figure: 11-a substrate material box, 12-a first flowmeter, 13-an electric valve, 14-a filter, 15-a first delivery pump, 16-a first pipeline, 21-an accelerant box, 22-a second flowmeter, 23-a second delivery pump, 24-a second pipeline, 31-a sensitizer box, 32-a third delivery pump, 33-a third flowmeter, 34-a third pipeline, 41-an inner pipe, 42-a first medicine inlet, 43-a second medicine inlet, 44-a third medicine inlet, 45-an outer pipe, 47-a medicine outlet pipe, 51-a rotary shaft seat, 52-a medicine conveying pipe, 53-a static sensitizer, 54-a hydraulic motor, 55-a medicine inlet pipe, 56-a rotary shaft and a 6-a manual valve.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-8, a variable density sectional explosive charging method and device for on-site mixed loading of emulsion explosive comprises a substrate conveying unit, a sensitizer conveying unit, an accelerant conveying unit, a water ring former, a loading pipe 52 reel and a controller for controlling the sensitizer conveying unit, sectional explosive charging with different densities can be required in the same blast hole according to different rock hardness, blast hole depth or expected blasting effect in the blasting process, so the controller is mainly used for controlling the conveying amount of a third conveying pump 32 to the sensitizer according to the blast holes with different depth sections to achieve the sectional explosive charging effect, the explosive inlet end of the water ring former is connected with the substrate conveying unit, the sensitizer conveying unit and the accelerant conveying unit through pipelines, the explosive outlet end of the water ring former is connected with the loading pipe 52 reel, the water ring former comprises an inner pipe 41 and an outer pipe 45, the water ring former is used for preventing the sensitizer from reacting with the substrate and the accelerant too early, the safety is improved, one end of the inner tube 41 is provided with a first medicine inlet 42 and a second medicine inlet 43, the other end of the inner tube 41 extends into the outer tube 45, a gap is reserved between the inner tube 41 and the outer tube 45, the outer tube 45 is provided with a third medicine inlet 44, one end of the outer tube 45, which is far away from the inner tube 41, is provided with a medicine outlet 47, the reel of the medicine conveying tube 52 comprises a rotating shaft support 51, the center of the rotating shaft support 51 is provided with a rotating shaft 56 for driving the rotating shaft support 51 to rotate, the rotating shaft support 51 is provided with a medicine inlet tube 55 connected with the medicine outlet 47, the rotating shaft support 51 is spirally wound with a medicine conveying tube 52, the rotating shaft 56 can rotate for accommodating and releasing the medicine conveying tube 52, one end of the medicine conveying tube 52 is connected with the medicine inlet tube 55, the other end of the medicine conveying tube 52 is provided with a static sensitizing device 53, the substrate conveying unit comprises a substrate box 11, the substrate box 11 is connected with the first medicine inlet 42 through, an electric valve 13, a filter 14, a first delivery pump 15 and a first flowmeter 12 are sequentially arranged on a first pipeline 16, the filter 14 is used for filtering large-particle substrates, the first flowmeter 12 is used for enabling a controller to control the delivery amount of the substrates, then the substrates are delivered through the first delivery pump 15, an accelerant delivery unit comprises an accelerant box 21, the accelerant box 21 is connected with a second medicine inlet 43 through a second pipeline 24 and along the direction from the accelerant box 21 to the second medicine inlet 43, a second delivery pump 23 and a second flowmeter 22 are sequentially arranged on the second pipeline 24, the second flowmeter 22 is used for enabling the controller to control the delivery amount of the accelerant and then delivering the accelerant through the second delivery pump 23, the sensitizer delivery unit comprises a sensitizer box 31, the sensitizer box 31 is connected with a third medicine inlet 44 through a third pipeline 34 and along the direction from the sensitizer box 31 to the third medicine inlet 44, the third flow meter 33 is used for controlling the delivery amount of the sensitizer by the controller, and then the sensitizer is delivered by the third delivery pump 32, the second pipeline 24 and the third pipeline 34 are both provided with manual valves 6, the manual valves 6 are closed pipelines for emergency, the controller is in signal connection with the third delivery pump 32 and the third flow meter 33, and the rotating shaft support 51 is provided with a hydraulic motor 54 for driving the rotating shaft 56 to rotate.
The invention aims to require sectional charging with different densities according to different rock hardness, blast hole depth or expected blasting effect in the blasting process, research an explosive density real-time adjustment mode and a sectional charging accurate control technology in the continuous mixed charging process, research the influence of sensitization modes, mixing uniformity, sensitization effects and sensitizer types of sensitization devices with different structures on the density, mainly research the working capacity of explosives with different densities and the accurate control of the explosive density, charging length and charging amount of each section during sectional charging, and achieve the technical effect that the continuous sectional charging capacity is not less than 3 sections when the effective charging depth is more than 30 m.
Taking the example of filling three explosives with different densities in the same blast hole, the three-density explosives are required to be produced by continuously changing the density within a certain time.
Firstly, a first delivery pump 15 is determined as a substrate delivery pump, a second delivery pump 23 is determined as an accelerator delivery pump, a third delivery pump 32 is determined as a sensitizer delivery pump, a first flow meter 12 is a substrate flow meter, a second flow meter 22 is a promoter flow meter, a third flow meter 33 is a sensitizer flow meter, three density values are set in advance, and production parameters under each density are obtained by counting according to the explosive capacity and the explosive mass of the three densities;
i.e. the latex matrix flux X at the first density
1L/h, sensitizer flow Y
1kg/h, accelerator flow Z
1L/h; latex matrix flux X at second density
2L/h, sensitizer flow Y
2kg/h, accelerator flow Z
2L/h; latex matrix flux X at third Density
3L/h, sensitizer flow Y
3kg/h, accelerator flow Z
3L/h；
Example 1:
assuming a single hole charge mass of 100kg, the charge is divided into three densities:
first stage 30kg, latex matrix flow X
1L/h, sensitizer flow Y
1kg/h, accelerator flow Z
1L/h
Second stage 40kg, latex matrix flow X
2L/h, sensitizer flow Y
2kg/h, accelerator flow Z
2L/h
Third 30kg, latex matrix flow X
3L/h, sensitizer flow Y
3kg/h, accelerator flow Z
3L/h
The charging process comprises the following steps:
s1: the first section is filled with medicine, a substrate delivery pump, a sensitizer delivery pump and an accelerator delivery pump are started, and the first section is controlled by a PID controller to ensure that the numerical values of a substrate flowmeter, a sensitizer flowmeter and an accelerator flowmeter are respectively X
1L/h、Y
1kg/h、Z
1L/h, then respectively filling the blast holes through a substrate delivery pump, a sensitizer delivery pump and an accelerant delivery pump, and immediately and automatically carrying out second-stage charging after 30kg of charging is finished;
s2: the numerical values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter are respectively X under the control of a PID controller
2L/h、Y
2kg/h、Z
2L/h, then, after 40kg of blast holes are filled by a matrix delivery pump, a sensitizing agent delivery pump and an accelerant delivery pump respectively, immediately and automatically executing third-stage charging;
s3: the numerical values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter are respectively X under the control of a PID controller
3L/h、Y
3kg/h、Z
3L/h, then dividedAnd (3) filling the blast holes by a matrix delivery pump, a sensitizing agent delivery pump and an accelerant delivery pump respectively, and stopping the operation of each delivery pump after 30kg of blast holes are filled, so that the variable density charging is finished.
Example 2:
assuming a single hole charge mass of 100kg, the charge is divided into three densities:
first stage 30kg, latex matrix flow X
1L/h, sensitizer flow Y
4kg/h, accelerator flow Z
5L/h
Second stage 40kg, latex matrix flow X
1L/h, sensitizer flow Y
4kg/h, accelerator flow Z
5L/h
Third 30kg, latex matrix flow X
1L/h, sensitizer flow Y
4kg/h, accelerator flow Z
5L/h
The charging process comprises the following steps:
s1: the first section is filled with medicine, a substrate delivery pump, a sensitizer delivery pump and an accelerator delivery pump are started, and the first section is controlled by a PID controller to ensure that the numerical values of a substrate flowmeter, a sensitizer flowmeter and an accelerator flowmeter are respectively X
1L/h、Y
4kg/h、Z
5L/h, then respectively filling the blast holes through a substrate delivery pump, a sensitizer delivery pump and an accelerant delivery pump, and immediately and automatically carrying out second-stage charging after 30kg of charging is finished;
s2: the numerical values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter are respectively X under the control of a PID controller
1L/h、Y
4kg/h、Z
5L/h, then, after 40kg of blast holes are filled by a matrix delivery pump, a sensitizing agent delivery pump and an accelerant delivery pump respectively, immediately and automatically executing third-stage charging;
s3: the numerical values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter are respectively X under the control of a PID controller
1L/h、Y
4kg/h、Z
5And L/h, filling the blast holes through a matrix delivery pump, a sensitizer delivery pump and an accelerant delivery pump respectively, stopping running of the delivery pumps after 30kg of blast holes are filled, and finishing the variable density charging.
Embodiment 2 confirms the change range of the explosive density and the required charge amount of each section required by the blast hole according to the requirement of the blasting scheme, realizes the adjustment of the explosive density by adjusting the compound amount of the sensitizing agent and the accelerating agent, researches the relation between the dosage of the sensitizing agent and the accelerating agent and the change of the explosive density, and inputs the corresponding relation into the control system, at the moment, the delivery amount of the emulsion matrix is a fixed value, and the purposes of continuous sensitization and charge of the explosive density real-time continuous adjustment are achieved.
Simulation materials are manufactured through a pilot line, different amounts of sensitizing agents and accelerating agents are added, the density change of the simulation materials is detected, and in the conveying and mixed loading process, the implementation modes of a lubrication drag reduction technology, a sensitization technology and a variable density segmented charging technology are determined through tests.
The invention adopts a PID controller to design the filling amount of the matrix, the sensitizer and the accelerant required by different section positions of explosives according to different section positions of blast holes, controls the flow meter to meter the flow through the controller, and then adjusts the flow of the matrix, the sensitizer and the accelerant through the conveying amount of the conveying pump, thereby realizing the technology of uninterrupted variable density sectional explosive loading.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described, and the content not described in detail in the specification belongs to the prior art known by persons skilled in the art.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a variable density segmentation charging means of on-spot mixed loading emulsion explosive which characterized in that: the device comprises a substrate conveying unit, a sensitizing agent conveying unit, an accelerant conveying unit, a water ring former, a drug delivery pipe reel and a controller for controlling the sensitizing agent conveying unit, wherein the drug inlet end of the water ring former is connected with the substrate conveying unit, the sensitizing agent conveying unit and the accelerant conveying unit through pipelines, and the drug outlet end of the water ring former is connected with the drug delivery pipe reel.
2. The field mixed-loading emulsion explosive variable-density sectional charging device according to claim 1, characterized in that: the water ring former includes inner tube and outer tube, inner tube one end is equipped with first medicine mouth and the second of advancing and advances the medicine mouth, the inner tube other end stretches into in the outer tube and leaves the clearance between inner tube and the outer tube, it is equipped with out the pencil to be equipped with the third on the outer tube and advances medicine mouth and outer tube and keep away from inner tube one end.
3. The field mixed-loading emulsion explosive variable-density sectional charging device according to claim 2, characterized in that: the medicine conveying pipe reel comprises a rotary shaft support, a rotary shaft used for driving the rotary shaft support to rotate is installed at the center of the rotary shaft support, a hydraulic motor used for driving the rotary shaft to rotate is arranged on the rotary shaft support, a medicine conveying pipe connected with a medicine outlet pipe is arranged on the rotary shaft support, a medicine conveying pipe is spirally wound on the rotary shaft support, one end of the medicine conveying pipe is connected with the medicine inlet pipe, and a static sensitizing device is installed at the other end of the medicine conveying pipe.
4. The field mixed-loading emulsion explosive variable-density sectional charging device according to claim 2, characterized in that: the matrix conveying unit comprises a matrix material box, the matrix material box is connected with the first medicine inlet through a first pipeline and is connected to the first medicine inlet along the direction from the matrix material box to the first medicine inlet, and an electric valve, a filter, a first conveying pump and a first flowmeter are sequentially installed on the first pipeline.
5. The field mixed-loading emulsion explosive variable-density sectional charging device according to claim 2, characterized in that: the promoter conveying unit comprises a promoter box, the promoter box and the second drug inlet are connected through a second pipeline, the direction of the drug inlet from the promoter box to the second drug inlet is arranged along the second pipeline, and a second conveying pump and a second flowmeter are sequentially installed on the second pipeline.
6. The field mixed-loading emulsion explosive variable-density sectional charging device according to claim 2, characterized in that: the sensitizer conveying unit comprises a sensitizer box, the sensitizer box is connected with the third medicine inlet through a third pipeline, the third pipeline is connected with the third medicine inlet, the third pipeline is sequentially provided with a third conveying pump and a third flow meter, and the third pipeline is connected with the third medicine inlet through a third pipeline.
7. The variable-density sectional explosive loading device for the field mixed emulsion explosive according to claim 6, wherein: and manual valves are arranged on the second pipeline and the third pipeline.
8. The variable-density sectional explosive loading device for the field mixed emulsion explosive according to claim 4, wherein: the controller is in signal connection with the first delivery pump and the first flow meter, the controller is in signal connection with the second delivery pump and the second flow meter, and the controller is in signal connection with the third delivery pump and the third flow meter.
9. The field mixed-loading emulsion explosive variable-density sectional charging device according to claim 1, characterized in that: the controller is a PID controller.
10. The on-site mixed emulsion explosive variable-density sectional charging method according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1: setting the numerical value of each section to be charged and transmitting the numerical value to a PID controller, and assuming that the charging amount of each section is Akg, Bkg and Ckg respectively;
s2: the PID controller counts to obtain production parameters under each density according to the explosive capacity and the explosive mass under three section density, namely, the latex matrix flow, the sensitizer flow and the accelerator flow under each degree;
s3: starting the substrate delivery pump, the sensitizer delivery pump and the accelerator delivery pump, and controlling by the PID controller to make the values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter respectively be X
1L/h、Y
1kg/h、Z
1L/h, then respectively filling the blast holes through a substrate delivery pump, a sensitizer delivery pump and an accelerant delivery pump, and immediately and automatically executing second-stage charging after Akg is filled;
s4: the numerical values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter are respectively X under the control of a PID controller
2L/h、Y
2kg/h、Z
2L/h, then Bkg is filled in the blast hole through a substrate delivery pump, a sensitizer delivery pump and an accelerant delivery pump, and then the third section of charging is automatically executed immediately;
s5: the numerical values of the substrate flowmeter, the sensitizer flowmeter and the accelerator flowmeter are respectively X under the control of a PID controller
3L/h、Y
3kg/h、Z
3And L/h, filling the blast holes by a matrix delivery pump, a sensitizer delivery pump and an accelerant delivery pump respectively, and stopping running of the delivery pumps after Ckg is filled, so that the variable density charging is finished.
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| CN112010718A (en) * | 2020-08-18 | 2020-12-01 | 西安近代化学研究所 | Explosive compression molding system for improving charging density and density uniformity of special-shaped projectile body |
| CN115218738A (en) * | 2022-06-20 | 2022-10-21 | 安徽中金立华矿业工程有限公司 | On-site mixed explosive loading vehicle and working method thereof |
| WO2023033743A1 (en) * | 2021-09-01 | 2023-03-09 | Orica International Pte Ltd | Systems and methods for loading explosive compositions having programmably/selectively defined density profiles into boreholes |
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| WO2023033743A1 (en) * | 2021-09-01 | 2023-03-09 | Orica International Pte Ltd | Systems and methods for loading explosive compositions having programmably/selectively defined density profiles into boreholes |
| CN115218738A (en) * | 2022-06-20 | 2022-10-21 | 安徽中金立华矿业工程有限公司 | On-site mixed explosive loading vehicle and working method thereof |
| CN115218738B (en) * | 2022-06-20 | 2024-04-30 | 安徽中金立华矿业工程有限公司 | On-site mixed explosive loading vehicle and working method thereof |
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