CN111023924A - Portable magnetoelectric detonator detonating instrument and detonating method thereof - Google Patents

Portable magnetoelectric detonator detonating instrument and detonating method thereof Download PDF

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Publication number
CN111023924A
CN111023924A CN201911415578.2A CN201911415578A CN111023924A CN 111023924 A CN111023924 A CN 111023924A CN 201911415578 A CN201911415578 A CN 201911415578A CN 111023924 A CN111023924 A CN 111023924A
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detonation
module
circuit
battery pack
portable
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CN111023924B (en
Inventor
周明
赵云涛
韩魏勐
梁东峰
程攀
李万全
门媛媛
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Wuhua Energy Technology Co ltd
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Xi'an Wuhua Juneng Blasting Equipment Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/12Primers; Detonators electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C21/00Checking fuzes; Testing fuzes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

The invention discloses a portable magnetoelectric detonator exploder and an exploding method thereof. According to the invention, the control module, the detection module and the detonation module are integrated on one circuit board, so that the volume and the weight of the detonation instrument are effectively reduced. The detection module is controlled by a single chip microcomputer, and displays the detection result in three modes of short circuit, open circuit and normal (resistance value) so as to judge the state of the detonation circuit. The battery pack power supply scheme combining the internal power supply and the external power supply is designed, so that the applicable environment and the continuous service time of the detonator are improved. And a digital display scheme of the power supply voltage and the resistance of the detonation loop is designed, so that an operator can conveniently observe the digital display scheme.

Description

Portable magnetoelectric detonator detonating instrument and detonating method thereof
Technical Field
The invention relates to the technical field of blasting, in particular to a portable magnetoelectric detonator detonating apparatus and a detonating method thereof.
Background
The magnetoelectric detonator is an electric detonator which is detonated by a specific alternating current signal, has a frequency-selecting detonation function, and has good stray current resistance, industrial frequency resistance and antistatic capacity. The difference from the common electric detonator is that two leg wires of the electric detonator are respectively connected with two ends of a coil on the annular magnetic core magnetic ring. Due to the structural characteristics of the magnetoelectric detonator, the bridge wire is always in a short circuit state, the magnetoelectric detonator generates a magnetic field through the change of electric pulses in the detonating bus, and generates current with enough strength through the action of the magnetic ring to ignite the bridge wire of the magnetoelectric detonator, so that the magnetoelectric detonator is detonated.
According to the characteristics of the magnetic ring, the primary coil and the secondary coil, each type of magnetoelectric detonator has unique frequency selection characteristics, and the magnetoelectric detonator can be ignited only by the initiation current which accords with the specific frequency of the magnetoelectric detonator. The existing magnetoelectric detonator priming instrument is only used for controlling the output of single frequency and does not control the frequency. The electromagnetic detonator is generally manufactured according to the detonation frequency of the electromagnetic detonator, and can only detonate the electromagnetic detonator with single frequency.
The magnetoelectric detonator exploder used at present is powered by alternating current, needs to be provided with an alternating current power supply (a mains supply, a generator or a UPS power supply) when in use, is heavy, is inconvenient to carry, and cannot meet the use requirement of convenience and high efficiency in the field.
Before detonating the detonator, the resistance detection of the detonation circuit is needed to judge whether the detonation circuit is normal or not. The magnetoelectric detonator exploder used at present only has an explosion function, and a resistance measuring instrument (a universal meter, a resistance meter and the like) is additionally used for detecting the resistance of an explosion loop, so that the wiring times and the number of instruments carried on site are increased, and the safety and high-efficiency operation are not facilitated.
Disclosure of Invention
In view of the above defects in the prior art, the technical problem to be solved by the present invention is to provide a portable magnetoelectric detonator initiator and an initiation method thereof, which can initiate different types of magnetoelectric detonators and electric detonators, and can detect and display the state of an initiation loop.
In order to achieve the purpose, the invention provides a portable magnetoelectric detonator explosion 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, an explosion output circuit and an explosion module, the control module is electrically connected with the power module, the resistance display module, the resistance detection circuit and the explosion output circuit, the explosion output circuit is also electrically connected with the resistance detection circuit, and the power module is also electrically connected with the explosion module.
Preferably, the power module comprises a charger, a rechargeable battery pack, a spare rechargeable battery pack, a power voltage detection module and a voltage display module, the output end of the charger is connected with the rechargeable battery pack and the spare rechargeable battery pack, the output ends of the rechargeable battery pack and the spare 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 spare rechargeable battery pack are isolated by a power switch, a rechargeable lithium battery is adopted, and the voltage of the battery pack is 8-12 v.
Preferably, the output end of the rechargeable battery pack or the spare rechargeable battery pack outputs 3.3V and 5V direct-current voltages through the voltage stabilizing chip processing respectively.
Preferably, the measurement range of the power supply voltage detection module is 0-12 v.
Preferably, the detonation module comprises two LR2905Z, a rectifying circuit consisting of a transformer T1, diodes D5, D6, D7 and D8, and a detonation circuit consisting of resistors R40, R46 and a switching tube Q4, wherein the output ends of the two LR2905Z are connected with the primary side of the transformer T1, the primary side and the secondary side of the transformer T1 are connected with the input end of the rectifying circuit, and the output end of the rectifying 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 position 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 switch tube Q4, a grid electrode of the switch 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 switch tube Q4, and a drain electrode of the switch tube Q4 is connected with an electric detonator output end OUT 1-.
A detonation method of a portable magnetoelectric detonator detonating apparatus comprises the following steps:
(1) pressing a measuring key, carrying out normal resistance measurement, and judging whether a short-circuit fault or an open-circuit fault exists;
(2) the change-over switch is turned on, the charging button is pressed down to charge, the charging voltage is 200V, and the detonation indicator lamp is on;
(3) the voltage of the ignition is between 200V and 170V, and the ignition button is pressed to perform the ignition.
Further, when there is an open circuit fault, displaying AAA; when there is a short fault, ddd is displayed.
The invention has the beneficial effects that:
according to the invention, the control module, the detection module and the detonation module are integrated on one circuit board, so that the volume and the weight of the detonation instrument are effectively reduced. The detection module is controlled by a single chip microcomputer, and displays the detection result in three modes of short circuit, open circuit and normal (resistance value) so as to judge the state of the detonation circuit. The battery pack power supply scheme combining the internal power supply and the external power supply is designed, and the applicable environment and the continuous service time of the detonation instrument are improved. And a digital display scheme of the power supply voltage and the resistance of the detonation loop is designed, so that an operator can conveniently observe the digital display scheme. The invention integrates the resistance detection function and the detonation function of the detonation circuit and can switch between the two functions at will.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the 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 module structure 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 value measuring circuit of the present invention.
Fig. 5 is a wiring diagram of the resistance measuring circuit of the present invention.
Figure 6 is a block diagram of the initiation circuit of the present invention.
Fig. 7 is a 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 a method of the present invention.
Detailed Description
As shown in fig. 1-8, a portable magnetoelectric detonator explosion initiating 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, an explosion output line 5 and an explosion 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 output line 5, the explosion 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 module 6.
The power module 2 includes a charger 21, a rechargeable battery pack 22, a spare 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 to the rechargeable battery pack 22 and the spare rechargeable battery pack 23, the output ends of the rechargeable battery pack 22 and the spare rechargeable battery pack 23 are connected to the power voltage detection module 24, and the output end of the power voltage detection module 24 is connected to the voltage display module 25. As shown in fig. 3, the rechargeable battery pack 22 or the backup rechargeable battery pack 23 is VCC in the figure, and VCC is a system input power supply (8-12V), and outputs two power supplies 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 path outputs 5V to supply to the PWM driving circuit.
As shown in fig. 4, the resistance detection circuit 4 mainly measures the loop resistance value of the cable, connects the precision resistor and the cable to be detected in series in the same loop, obtains the loop current by detecting the voltage at the two ends of the precision resistor, and calculates the resistance value of the cable to be detected according to the loop current and the detection voltage at the cable end.
A detailed detection circuit diagram is shown in fig. 5. The main function of the device is to measure the resistance value of a loop, wherein P1 is the output end of a measuring resistor, when a relay is in a normally closed contact, the system can carry OUT measuring operation, a resistor R31 is connected in the measuring loop in series, the front end voltage of R31 is 3.3V, the rear end voltage is V1OUT, the voltage value on the resistor R31 can be obtained by detecting the difference of the front voltage and the rear voltage of R31, then the voltage on R31 is divided by the resistance value to obtain the current of the measuring loop, the voltage value on the V1OUT is also the voltage value on the measured resistor as can be seen from figure 3, and the resistance value of the measured resistor can be obtained by dividing the voltage V1OUT on the measured resistor by the current value of the.
The control module 1 in this embodiment is preferably a PIC24FJ256GA single chip microcomputer, or may be another single chip microcomputer, as shown in fig. 8. The control circuit is composed 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 the 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 communication 2 pins, and detonation control module 3 pins.
As shown in fig. 6, the detonation circuit adopts a push-pull type booster circuit topology, the control circuit generates two complementary PWM waves to boost the power supply voltage VCC to the detonation voltage value through the transformer, the energy storage capacitor is charged, and when the detonation threshold voltage is reached, the control circuit outputs an ignition signal to complete the ignition process.
As shown in fig. 7, the detailed detonation circuit includes a rectification circuit composed of two LR2905Z, a transformer T1, diodes D5, D6, D7 and D8, and a detonation circuit composed of resistors R40, R46 and a switching tube Q4, wherein output ends of the two LR2905Z are connected with a primary side of the transformer T1, a secondary side of the primary side of the transformer T1 is connected with an input end of the rectification circuit, and an output end of the rectification circuit is connected in parallel with a capacitor C31 and the detonation circuit; the detonation circuit comprises resistors R40 and R46 which are connected in series, the connection position 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 switch tube Q4, a grid electrode of the switch 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 switch tube Q4, and a drain electrode of the switch tube Q4 is connected with an electric.
The direct-current voltage is increased to voltage required by detonation, the controller detects the voltage value through the AD6, detonation operation can be carried out when the voltage value reaches 200V required by detonation, the relay is closed, the PWM _3_ O is output, the direct-current voltage is changed into high-frequency pulse voltage, and the electromagnetic detonator is detonated.
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 12 v; 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 0-12 v; the rechargeable battery pack 22 and the spare rechargeable battery pack 23 are isolated by a power switch.
The control module (singlechip) controls to apply a minimum safe voltage (0.5-2v) to the detonation circuit, the singlechip calculates the resistance value of the detonation circuit and judges the state of the detonation circuit by detecting the current value of the detonation circuit, and the data exchange between the singlechip and the resistance display module displays the state of the detonation circuit on the resistance display screen in three forms of short circuit, open circuit and normal (resistance value); the resistance 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 detonation module are integrated on one circuit board, so that the volume and the weight of the detonation instrument are effectively reduced. The detection module is controlled by a single chip microcomputer, and displays the detection result in three modes of short circuit, open circuit and normal (resistance value) so as to judge the state of the detonation circuit. The battery pack power supply scheme combining the internal power supply and the external power supply is designed, and the applicable environment and the continuous service time of the detonation instrument are improved. And a digital display scheme of the power supply voltage and the resistance of the detonation loop is designed, so that an operator can conveniently observe the digital display scheme. The invention integrates the resistance detection function and the detonation function of the detonation circuit and can switch between the two functions at will.
As shown in fig. 9, the invention also provides a detonation method of the portable magnetoelectric detonator detonating apparatus, which comprises the following steps:
(1) pressing a measuring key, carrying out normal resistance measurement, and judging whether a short-circuit fault or an open-circuit fault exists;
(2) the change-over switch is turned on, the charging button is pressed down to charge, the charging voltage is 200V, and the detonation indicator lamp is on;
(3) the voltage of the ignition is between 200V and 170V, and the ignition button is pressed to perform the ignition.
Wherein, when there is open circuit fault, AAA is displayed; when there is a short fault, ddd is displayed.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A portable magnetoelectric detonator detonating instrument is characterized in that: the detonation device comprises a shell and a control panel arranged in the shell, wherein the control panel comprises a control module (1), a power module (2), a resistance display module (3), a resistance detection circuit (4), a detonation output line (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 line (5), the detonation output line (5) is also electrically connected with the resistance detection circuit (4), and the power module (2) is also electrically connected with the detonation module (6).
2. The portable magnetoelectric detonator initiator according to claim 1, wherein: the power supply module (2) comprises a charger (21), a rechargeable battery pack (22), a standby rechargeable battery pack (23), a power supply 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 ends of the rechargeable battery pack (22) and the standby rechargeable battery pack (23) are connected with the power supply voltage detection module (24), and the output end of the power supply voltage detection module (24) is connected with the voltage display module (25).
3. The portable magnetoelectric detonator initiator according to claim 1, wherein: the control module (1) is a singlechip.
4. The portable magnetoelectric detonator initiator according to claim 1, wherein: the resistance display module (3) is an LED display screen.
5. The portable magnetoelectric detonator initiator according to claim 2, wherein: the rechargeable battery pack (22) and the spare rechargeable battery pack (23) are isolated by a power switch, a rechargeable lithium battery is adopted, and the voltage of the battery pack is 8-12 v.
6. The portable magnetoelectric detonator initiator according to claim 5, wherein: the output end of the rechargeable battery pack (22) or the spare rechargeable battery pack (23) is also used for processing and outputting 3.3V and 5V direct-current voltages through a voltage stabilizing chip respectively.
7. The portable magnetoelectric detonator initiator according to claim 2, wherein: the measurement range of the power supply voltage detection module (24) is 0-12 v.
8. The portable magnetoelectric detonator initiator according to claim 1, wherein: the detonation module (6) comprises a rectification circuit consisting of two LR2905Z, a transformer T1, diodes D5, D6, D7 and D8 and a detonation circuit consisting of resistors R40, R46 and a switching tube Q4, wherein the output ends of the two LR2905Z are connected with the primary side of the transformer T1, the primary side and the secondary side of the transformer T1 are 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 position of the resistors R40 and R46 which are connected in series is connected with an AD6 sampling end of a 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 switch tube Q4, a grid electrode of the switch 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 switch tube Q4, and a drain electrode of the switch tube Q4 is connected with an electric detonator output end OUT 1-2.
9. A detonation method of a portable magnetoelectric detonator detonating apparatus is characterized by comprising the following steps:
(1) pressing a measuring key, carrying out normal resistance measurement, and judging whether a short-circuit fault or an open-circuit fault exists;
(2) the change-over switch is turned on, the charging button is pressed down to charge, the charging voltage is 200V, and the detonation indicator lamp is on;
(3) the voltage of the ignition is between 200V and 170V, and the ignition button is pressed to perform the ignition.
10. The detonation method of the portable magnetoelectric detonator detonating apparatus according to claim 9, characterized in that when there is an open circuit failure, AAA is displayed; when there is a short fault, ddd is displayed.
CN201911415578.2A 2019-12-31 2019-12-31 Portable magneto-electric detonator priming instrument and priming method thereof Active CN111023924B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111878846A (en) * 2020-08-24 2020-11-03 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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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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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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CN101776427A (en) * 2010-01-13 2010-07-14 中国人民解放军理工大学工程兵工程学院 Multipath electric detonator priming device with self test and line fault test function and method
CN203629462U (en) * 2013-12-11 2014-06-04 天津市泰华科技有限公司 Underground detonating device for magnetoelectric detonator
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CN111878846A (en) * 2020-08-24 2020-11-03 珠海格力电器股份有限公司 Pulse igniter control method, device and system and gas appliance
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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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.