CN111023924B - Portable magneto-electric detonator priming instrument and priming method thereof - Google Patents
Portable magneto-electric detonator priming instrument and priming method thereof Download PDFInfo
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- CN111023924B CN111023924B CN201911415578.2A CN201911415578A CN111023924B CN 111023924 B CN111023924 B CN 111023924B CN 201911415578 A CN201911415578 A CN 201911415578A CN 111023924 B CN111023924 B CN 111023924B
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- 230000037452 priming Effects 0.000 title claims description 8
- 238000000034 method Methods 0.000 title abstract description 10
- 238000005474 detonation Methods 0.000 claims abstract description 57
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C21/00—Checking fuzes; Testing fuzes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a portable magneto-electric detonator detonating instrument and a detonating method thereof, wherein the portable magneto-electric detonator detonating instrument comprises a control module, a power module, a resistance display module, a resistance detection circuit, a detonating output circuit and a detonating module, the control module is electrically connected with the power module, the resistance display module, the resistance detection circuit and the detonating output circuit, the detonating output circuit is also electrically connected with the resistance detection circuit, and the power module is also electrically connected with the detonating module. According to the invention, the control module, the detection module and the initiation module are integrated and designed on the same circuit board, so that the volume and the weight of the initiation instrument are effectively reduced. The detection module is controlled by the singlechip and displays the detection result in three modes of short circuit, circuit break and normal (resistance value), so as to judge the state of the detonation loop. The battery pack power supply scheme combining the internal power supply and the external power supply is designed, so that the application environment and the continuous service time of the detonating instrument are improved. The digital display scheme of the power supply voltage and the detonation loop resistance is designed, so that the operator can observe conveniently.
Description
Technical Field
The invention relates to the technical field of blasting, in particular to a portable magneto-electric detonator detonating instrument and a detonating method thereof.
Background
The magneto-electric detonator is an electric detonator detonated by specific alternating current signals, has the function of frequency selection detonating, and has good stray current resistance, power frequency resistance and antistatic capability. The difference with the common electric detonator is that the two leg wires are respectively connected with the two ends of one coil on the annular magnetic core magnetic ring. Because the bridge wire is always in a short circuit state due to the structural characteristics of the magneto-electric detonator, the magneto-electric detonator generates a magnetic field through the change of electric pulse in the detonating bus, and generates current with enough intensity through the action of the magnetic ring to ignite the bridge wire of the magneto-electric detonator, so that the magneto-electric detonator is detonated.
According to the characteristics of the magnetic ring, the primary coil and the secondary coil, each type of magneto-electric detonator has unique frequency selection characteristics, and only detonation current conforming to the specific frequency of the magneto-electric detonator can detonate the magneto-electric detonator. The existing magneto-electric detonator priming instrument is only used for controlling the output of a single frequency and does not carry out frequency control. The detonation device is generally manufactured according to the detonation frequency of the magneto-electric detonator, and only the magneto-electric detonator with single frequency can be detonated.
The magneto-electric detonator priming instrument used at present adopts alternating current power supply, and an alternating current power supply (a commercial power, a generator or a UPS power supply) needs to be equipped when in use, so that the magneto-electric detonator priming instrument is large in weight, inconvenient to carry and can not meet the use requirements of convenience and high efficiency in the field.
Before detonating the detonator, the detonation circuit needs to be subjected to resistance detection to judge whether the detonation circuit is normal or not. The currently used magneto-electric detonator detonating instrument only has the detonating function, and the resistance measuring instrument (a universal meter, a resistance meter and the like) is additionally used for detecting the resistance of a detonating loop, so that the wiring times and the number of on-site carried instruments are increased, and the safe and efficient operation is not facilitated.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a portable magneto-electric detonator initiator and an initiation method thereof, which can initiate magneto-electric detonators and electric detonators of different types, and can detect and display the state of an initiation loop.
In order to achieve the above purpose, the invention provides a portable magneto-electric detonator detonating instrument which comprises a shell and a control board arranged in the shell, wherein the control board comprises a control module, a power module, a resistance display module, a resistance detection circuit, a detonation output circuit and a detonation module, the control module is electrically connected with the power module, the resistance display module, the resistance detection circuit and the detonation output circuit, the detonation output circuit is also electrically connected with the resistance detection circuit, and the power module is also electrically connected with the detonation module.
Preferably, the power module comprises a charger, a rechargeable battery pack, a standby rechargeable battery pack, a power voltage detection module and a voltage display module, wherein the output end of the charger is connected with the rechargeable battery pack and the standby rechargeable battery pack, the output end of the rechargeable battery pack and the output end of the standby rechargeable battery pack are connected with the power voltage detection module, and the output end of the power voltage detection module is connected with the voltage display module.
Preferably, the control module is a single chip microcomputer.
Preferably, the resistance display module is an LED display screen.
Preferably, the rechargeable battery pack and the standby rechargeable battery pack are isolated by a power switch, and a rechargeable lithium battery is adopted, and the voltage of the battery pack is 8-12v.
Preferably, the output end of the rechargeable battery pack or the standby rechargeable battery pack also outputs 3.3V and 5V direct current voltages through processing of a voltage stabilizing chip respectively.
Preferably, the measuring range of the power supply voltage detection module is 0-12v.
Preferably, the detonation module comprises a rectification circuit formed by two LR2905Z, a transformer T1, diodes D5, D6, D7 and D8, and a detonation circuit formed by resistors R40, R46 and a switching tube Q4, wherein the output end of the two LR2905Z is connected with the primary of the transformer T1, the primary secondary of the transformer T1 is connected with the input end of the rectification circuit, and the output end of the rectification circuit is connected with a capacitor C31 and the detonation circuit in parallel; the detonation circuit comprises resistors R40 and R46 which are connected in series, the connection part of the resistors R40 and R46 which are connected in series is connected with an AD6 sampling end of the control module through a resistor R44, the other end of the resistor R40 is connected with an electric detonator output end OUT1-1 through a relay K2A, the other end of the resistor R46 is connected with a source electrode of a switching tube Q4, a grid electrode of the switching tube Q4 is connected with a PWM control end of the control module, a resistor R48 is connected between the grid electrode and the source electrode of the switching tube Q4, and a drain electrode of the switching tube Q4 is connected with the electric detonator output end OUT1-2.
A detonation method of a portable magneto-electric detonator detonation instrument comprises the following steps:
(1) Pressing a measurement key to perform normal resistance measurement and judging whether a short circuit fault or an open circuit fault exists or not;
(2) The change-over switch is turned on, the charging button is pressed down to charge, the charging voltage is up to 200V, and the initiation indicator lamp is on;
(3) The detonation voltage is between 200V and 170V, and the ignition button is pressed down to perform detonation.
Further, when an open circuit fault exists, AAA is displayed; when there is a short circuit failure, ddd is displayed.
The beneficial effects of the invention are as follows:
according to the invention, the control module, the detection module and the initiation module are integrated and designed on the same circuit board, so that the volume and the weight of the initiation instrument are effectively reduced. The detection module is controlled by the singlechip and displays the detection result in three modes of short circuit, circuit break and normal (resistance value), so as to judge the state of the detonation loop. The battery pack power supply scheme combining the internal power supply and the external power supply is designed, and the application environment and the continuous service time of the detonating instrument are improved. The digital display scheme of the power supply voltage and the detonation loop resistance is designed, so that the operator can observe conveniently. The invention integrates the detonation circuit resistance detection function and the detonation function, and can be switched between the two functions at will.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
Fig. 1 is a block diagram of the overall structure of the present invention.
Fig. 2 is a block diagram of the power supply module of the present invention.
Fig. 3 is a power module processing chip circuit of the present invention.
Fig. 4 is a circuit diagram of the cable loop resistance measurement of the present invention.
Fig. 5 is a wiring diagram of a resistance measurement circuit of the present invention.
FIG. 6 is a block diagram of the detonation circuit of the present invention.
Fig. 7 is a schematic diagram of the detonation circuit of the present invention.
Fig. 8 is a circuit diagram of a control module of the present invention.
Fig. 9 is a flow chart of the method of the present invention.
Detailed Description
As shown in fig. 1-8, a portable magneto-electric detonator detonating instrument comprises a shell and a control board arranged in the shell, wherein the control board comprises a control module 1, a power module 2, a resistance display module 3, a resistance detection circuit 4, a detonation output circuit 5 and a detonation module 6, the control module 1 is electrically connected with the power module 2, the resistance display module 3, the resistance detection circuit 4 and the detonation output circuit 5, the detonation output circuit 5 is electrically connected with the resistance detection circuit 4, and the power module 2 is electrically connected with the detonation module 6.
The power module 2 includes a charger 21, a rechargeable battery pack 22, a standby rechargeable battery pack 23, a power voltage detection module 24, and a voltage display module 25, wherein an output end of the charger 21 is connected with the rechargeable battery pack 22 and the standby rechargeable battery pack 23, an output end of the rechargeable battery pack 22 and the standby rechargeable battery pack 23 is connected with the power voltage detection module 24, and an output end of the power voltage detection module 24 is connected with the voltage display module 25. As shown in fig. 3, the above-mentioned rechargeable battery pack 22 or the spare rechargeable battery pack 23 is VCC in the figure, VCC is a system input power (8-12V), and two paths of power are output after circuit conversion. One path of the output voltage is 3.3V and is supplied to a control circuit and a detection circuit for use; the other output is 5V and is supplied to the PWM driving circuit.
As shown in fig. 4, the resistance detection circuit 4 mainly measures the resistance value of a cable loop, connects a precision resistor and a cable to be detected in series in the same loop, obtains loop current by detecting voltages at two ends of the precision resistor, and calculates the resistance value of the cable to be detected according to the loop current and the cable end detection voltage.
A detailed detection circuit diagram is shown in fig. 5. The main function of the measuring circuit is that the resistance value of the measuring circuit is P1, wherein P1 is the output end of the measuring resistor, when the relay is in a normally closed contact, the system can perform measuring operation, the resistor R31 is connected in series in the measuring circuit, the voltage of the front end of the R31 is 3.3V, the voltage of the rear end of the R31 is V1OUT, the voltage value on the resistor R31 can be obtained by detecting the difference between the front voltage and the rear voltage of the R31, then the voltage on the R31 is divided by the resistance value to obtain the measuring circuit current, and the voltage V1OUT on the measured resistor is also the voltage value on the measured resistor and can be divided by the circuit current value by utilizing ohm law.
The control module 1 is preferably a PIC24FJ256GA single-chip microcomputer, or may be another single-chip microcomputer, as shown in fig. 8. The control circuit consists of a CPU and peripheral circuits thereof, and realizes the information transmission and control process with each module. And selecting the CPU model according to the number of CPU pins occupied by each functional module. The number of CPU pins required to be occupied by each module is as follows: AD sampling 5 pins, key input 4 pins, buzzer and LED lamp control 5 pins, serial port communication 2 pins and detonation control module 3 pins.
The detonation circuit is as shown in fig. 6, adopts push-pull type booster circuit topology, the control circuit generates two paths of complementary PWM waves to raise the power supply voltage VCC to the detonation voltage value through the transformer, charges the energy storage capacitor, and when the detonation threshold voltage is reached, the control circuit outputs an ignition signal to complete the ignition process.
The detailed detonation circuit is shown in fig. 7, and comprises a rectification circuit formed by two LR2905Z, a transformer T1, diodes D5, D6, D7 and D8, and a detonation circuit formed by resistors R40, R46 and a switching tube Q4, wherein the output ends of the two LR2905Z are connected with the primary of the transformer T1, the primary secondary of the transformer T1 is connected with the input end of the rectification circuit, and the output end of the rectification circuit is connected with a capacitor C31 and the detonation circuit in parallel; the detonation circuit comprises resistors R40 and R46 which are connected in series, the connection part of the resistors R40 and R46 which are connected in series is connected with an AD6 sampling end of the control module through the resistor R44, the other end of the resistor R40 is connected with an electric detonator output end OUT1-1 through a relay K2A, the other end of the resistor R46 is connected with a source electrode of a switching tube Q4, a grid electrode of the switching tube Q4 is connected with a PWM control end of the control module, a resistor R48 is connected between the grid electrode and the source electrode of the switching tube Q4, and a drain electrode of the switching tube Q4 is connected with the electric detonator output end OUT1-2.
The controller detects the voltage value through the AD6, can perform detonation operation when the required voltage reaches 200V, closes the relay, outputs PWM_3_O to change the direct current voltage into high-frequency pulse voltage and detonates the magneto-electric detonator.
The resistance display module 3 is an LED display screen. The battery pack is composed of rechargeable lithium batteries, a charging protection circuit is arranged, and the voltage of the battery pack is 12v; the power supply voltage detection module 24 adopts an integrated voltage measurement module with voltage measurement, display driving and display functions, and the measurement range is 0-12v; the rechargeable battery pack 22 and the standby rechargeable battery pack 23 are isolated by a power switch.
Applying an extremely small safety voltage (0.5-2 v) to the detonation circuit under the control of a control module (single chip microcomputer), calculating the resistance value of the detonation circuit and judging the state of the detonation circuit by detecting the current value of the detonation circuit, and displaying the state of the detonation circuit on a resistance display screen in three forms of short circuit, open circuit and normal (resistance value) by data exchange of the single chip microcomputer and a resistance display module; the resistor display module adopts a general display module with the functions of singlechip communication, display driving and display.
According to the invention, the control module, the detection module and the initiation module are integrated and designed on the same circuit board, so that the volume and the weight of the initiation instrument are effectively reduced. The detection module is controlled by the singlechip and displays the detection result in three modes of short circuit, circuit break and normal (resistance value), so as to judge the state of the detonation loop. The battery pack power supply scheme combining the internal power supply and the external power supply is designed, and the application environment and the continuous service time of the detonating instrument are improved. The digital display scheme of the power supply voltage and the detonation loop resistance is designed, so that the operator can observe conveniently. The invention integrates the detonation circuit resistance detection function and the detonation function, and can be switched between the two functions at will.
As shown in fig. 9, the invention further provides a detonation method of the portable magneto-electric detonator detonation instrument, which comprises the following steps:
(1) Pressing a measurement key to perform normal resistance measurement and judging whether a short circuit fault or an open circuit fault exists or not;
(2) The change-over switch is turned on, the charging button is pressed down to charge, the charging voltage is up to 200V, and the initiation indicator lamp is on;
(3) The detonation voltage is between 200V and 170V, and the ignition button is pressed down to perform detonation.
Wherein, when there is a break fault, AAA is displayed; when there is a short circuit failure, ddd is displayed.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (1)
1. A portable magneto-electric detonator priming appearance which characterized in that: the explosion-proof device comprises a shell and a control board arranged in the shell, wherein the control board comprises a control module (1), a power module (2), a resistance display module (3), a resistance detection circuit (4), an explosion-proof output line (5) and an explosion-proof module (6), the control module (1) is electrically connected with the power module (2), the resistance display module (3), the resistance detection circuit (4) and the explosion-proof output line (5), the explosion-proof output line (5) is also electrically connected with the resistance detection circuit (4), and the power module (2) is also electrically connected with the explosion-proof module (6);
the power module (2) comprises a charger (21), a rechargeable battery pack (22), a standby rechargeable battery pack (23), a power voltage detection module (24) and a voltage display module (25), wherein the output end of the charger (21) is connected with the rechargeable battery pack (22) and the standby rechargeable battery pack (23), the output end of the rechargeable battery pack (22) and the output end of the standby rechargeable battery pack (23) are connected with the power voltage detection module (24), and the output end of the power voltage detection module (24) is connected with the voltage display module (25);
the control module (1) is a singlechip;
the resistance display module (3) is an LED display screen;
the rechargeable battery pack (22) and the standby rechargeable battery pack (23) are isolated through a power switch, and a rechargeable lithium battery is adopted, wherein the voltage of the battery pack is 8-12v;
the output end of the rechargeable battery pack (22) or the standby rechargeable battery pack (23) also respectively outputs 3.3V and 5V direct current voltages through the voltage stabilizing chip;
the measuring range of the power supply voltage detection module (24) is 0-12v;
the detonation module (6) comprises a rectification circuit formed by two LR2905Z, a transformer T1, diodes D5, D6, D7 and D8, and a detonation circuit formed by resistors R40, R46 and a switching tube Q4, wherein the output end of the two LR2905Z is connected with the primary of the transformer T1, the primary secondary of the transformer T1 is connected with the input end of the rectification circuit, and the output end of the rectification circuit is connected with a capacitor C31 and the detonation circuit in parallel; the detonation circuit comprises resistors R40 and R46 which are connected in series, wherein the connection part of the resistors R40 and R46 which are connected in series is connected with an AD6 sampling end of the control module (1) through a resistor R44, the other end of the resistor R40 is connected with an electric detonator output end OUT1-1 through a relay K2A, the other end of the resistor R46 is connected with a source electrode of a switching tube Q4, a grid electrode of the switching tube Q4 is connected with a PWM control end of the control module (1), a resistor R48 is connected between the grid electrode and the source electrode of the switching tube Q4, and a drain electrode of the switching tube Q4 is connected with the electric detonator output end OUT1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415578.2A CN111023924B (en) | 2019-12-31 | 2019-12-31 | Portable magneto-electric detonator priming instrument and priming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415578.2A CN111023924B (en) | 2019-12-31 | 2019-12-31 | Portable magneto-electric detonator priming instrument and priming method thereof |
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| Publication Number | Publication Date |
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| CN111023924A CN111023924A (en) | 2020-04-17 |
| CN111023924B true CN111023924B (en) | 2023-10-24 |
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| CN201911415578.2A Active CN111023924B (en) | 2019-12-31 | 2019-12-31 | Portable magneto-electric detonator priming instrument and priming method thereof |
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| CN111878846B (en) * | 2020-08-24 | 2023-10-27 | 珠海格力电器股份有限公司 | Pulse igniter control method, device and system and gas appliance |
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| CN204788092U (en) * | 2015-07-08 | 2015-11-18 | 重庆工程职业技术学院 | Safe type electric cap initiating device |
| CN106323106A (en) * | 2015-07-03 | 2017-01-11 | 沈阳三阳电子标签有限公司 | Electronic delay magneto electric detonator controller and control method thereof |
| CN212340080U (en) * | 2019-12-31 | 2021-01-12 | 西安物华巨能爆破器材有限责任公司 | Portable magnetoelectric detonator detonating instrument |
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2019
- 2019-12-31 CN CN201911415578.2A patent/CN111023924B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945479A (en) * | 2006-08-11 | 2007-04-11 | 山东科技大学 | Intelligent central control system for coal mine underground explosion |
| CN201041481Y (en) * | 2007-03-21 | 2008-03-26 | 煤炭科学研究总院爆破技术研究所 | Explosion-separating type electromagnetic exploder |
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| CN111023924A (en) | 2020-04-17 |
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Address after: 710061 No.20, middle section of Zhuque street, Yanta District, Xi'an City, Shaanxi Province Patentee after: Wuhua Energy Technology Co.,Ltd. Address before: 710061 No.20, middle section of Zhuque street, Yanta District, Xi'an City, Shaanxi Province Patentee before: XI'AN WUHUA JUNENG BLASTING EQUIPMENT Co.,Ltd. |