Digital millisecond differential high-energy pulse control exploder

Abstract

A digital millisecond differential high-energy pulse control exploder comprises a main controller and a plurality of exploders, the main controller is respectively connected with the plurality of exploders through a plurality of groups of signal lines, and each group of signal lines corresponds to one exploder. The main controller comprises a high-performance 32-bit ARM Cortex-M4 microcontroller and a power supply module and is responsible for overall control logic including time setting, voltage monitoring and fault detection. A signal amplification circuit is additionally arranged in each exploder, it is ensured that control signals received from the master controller cannot be attenuated in the transmission process, and the stability and strength of the signals are kept. And the signal amplification circuit receives a control signal of the main controller and amplifies the control signal, and the amplified signal triggers the charging and discharging processes of the high-energy pulse capacitor through the control circuit of the exploder. The main control chip sequentially sends starting signals to the exploder according to a preset time interval, and millisecond-level time control is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of detonator, especially relates to a digital millisecond differential high-energy pulse control detonator. BACKGROUND

[0002] In modern mining, construction, transportation and other fields, blasting operation is a common construction method for rock breaking, earthwork excavation, tunneling and other purposes. Traditional blasting technology relies on manual control and simple electric detonator initiation, which has many shortcomings, such as inaccurate initiation time control, low safety, complex operation, etc. With the development of science and technology, digital millisecond differential high-energy pulse control detonator emerges as the times require, which significantly improves the accuracy and safety of blasting operation through advanced electronic technology and intelligent control.

[0003] The limitation of traditional blasting technology is that traditional manual control and simple electric detonator initiation method cannot achieve millisecond-level time control, resulting in unsatisfactory blasting effect and easy over-damage or insufficient blasting. In long-distance transmission and complex environment, the signal is easy to attenuate, which affects the blasting effect and safety. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a digital millisecond differential high-energy pulse control detonator, which can independently set the start time of each detonator through block design and signal amplification circuit, realize millisecond-level time control, and ensure the uniformity and controllability of the blasting effect.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A digital millisecond differential high-energy pulse control detonator, comprising a lower box body, the lower box body is connected with a cover body, a main controller and a plurality of detonators are installed in the lower box body, the main controller is connected with the plurality of detonators through a plurality of groups of signal lines, and each group of signal lines corresponds to one detonator;

[0007] The main controller comprises a main control chip and a power supply module; the detonator comprises a signal amplification circuit, a control circuit and a high-energy pulse capacitor; the power supply module is used for supplying power for the main control chip, the main control chip is electrically connected with the signal amplification circuit through the signal line, the signal amplification circuit is electrically connected with the control circuit, and the control circuit is electrically connected with the high-energy pulse capacitor;

[0008] The signal amplification circuit inside each detonator receives the control signal of the main controller and performs amplification processing, and the amplified signal passes through the control circuit of the detonator to trigger the charging and discharging process of the high-energy pulse capacitor;

[0009] The main control chip is used for sending start signals to the detonators in sequence according to preset time intervals, so as to realize millisecond-level time control.

[0010] Preferably, a plurality of groups of signal line jacks are arranged on the panel of the main controller, and a group of signal lines is arranged on the panel of each detonator, one group of signal lines is connected with one group of signal line plugs, and each group of signal line plugs is used for being inserted into the fixed-position signal line jack.

[0011] Preferably, a main control operation panel, a key switch knob and a main controller charging interface are further arranged on the panel of the main controller.

[0012] Preferably, an explosion output interface, a detonator switch rocker, a charging and discharging conversion switch, a function switching lever and a detonator charging interface are further arranged on the panel of the detonator.

[0013] Preferably, one end of the lower box body is hinged to one end of the cover body, the other end of the lower box body is connected to the other end of the cover body through buckling, and a handle is arranged on the lower box body.

[0014] The utility model can achieve the following beneficial effects:

[0015] 1. The utility model adopts a block design, allows users to flexibly configure the number of detonators according to actual needs, and is convenient for expansion and upgrading. For example, in large-scale engineering, more detonators can be added to meet higher blasting requirements. Each detonator serves as an independent module, if a detonator fails, it can be replaced or repaired individually, without the need to stop the entire system, reducing maintenance time and cost, and facilitating continuous blasting control.

[0016] 2. The signal amplification circuit is added inside each detonator, which can effectively amplify the control signals sent by the main controller, reduce signal attenuation and interference in the transmission process, and ensure the stability and strength of the signals. In long-distance transmission and complex environments, the signal amplification circuit can ensure that the detonator receives a strong enough control signal, avoiding detonation failure caused by weak signals. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples:

[0018] Fig. 1 It is the overall structural drawing of the utility model;

[0019] Fig. 2 It is the panel structure diagram of the main controller and the detonator of the utility model;

[0020] Fig. 3 It is the control principle diagram of the utility model.

[0021] In the figure: lower box 1, cover 2, main controller 3, initiator 4, signal line jack 5, signal line plug 6, main control operation panel 7, key switch knob 8, main controller charging interface 9, detonation output interface 10, initiator switch rocker 11, charging and discharging switch 12, function switching lever 13, initiator charging interface 14, handle 15. DETAILED DESCRIPTION

[0022] The preferred scheme is as shown in a digital millisecond differential high-energy pulse control initiator, comprising a lower box 1, the lower box 1 is connected with the cover 2, the lower box 1 is installed with the main controller 3 and a plurality of initiators 4, the main controller 3 is connected with the plurality of initiators 4 through a plurality of groups of signal lines, each group of signal lines corresponds to an initiator 4; Figs. 1 to 3

[0023] The main controller 3 comprises a main control chip and a power supply module; the initiator 4 comprises a signal amplification circuit, a control circuit and a high-energy pulse capacitor; the main control chip is electrically connected with the signal amplification circuit through the signal line, the signal amplification circuit is electrically connected with the control circuit, and the control circuit is electrically connected with the high-energy pulse capacitor;

[0024] The signal amplification circuit inside each initiator 4 receives the control signal of the main controller 3 and performs amplification processing, and the amplified signal passes through the control circuit of the initiator to trigger the charging and discharging process of the high-energy pulse capacitor;

[0025] The main control chip is used for sending start signal to the initiator 4 in turn according to the preset time interval, so as to realize millisecond level time control.

[0026] The lower box 1 is used for accommodating the main controller 3 and the plurality of initiators 4.

[0027] The cover 2 is connected with the lower box 1 to protect the internal components.

[0028] The main controller 3 comprises a main control chip and a power supply module. The main control chip is responsible for the overall control logic, including time setting, voltage monitoring, fault detection, etc. The main control chip adopts a high-performance 32-bit ARM Cortex-M4 microcontroller, which is responsible for the overall control logic.

[0029] The initiator 4 comprises a signal amplification circuit, a control circuit and a high-energy pulse capacitor. The signal amplification circuit is used for receiving the control signal of the main controller 3 and performing amplification processing. The control circuit is used for controlling the charging and discharging process of the high-energy pulse capacitor according to the amplified signal. The high-energy pulse capacitor is used for storing electric energy for detonation. The signal line plug 6 is used for connecting each group of signal line plugs with the signal line jack 5 on the main controller 3.

[0030] ​Further, the panel of the main controller 3 is provided with a plurality of groups of signal line jacks 5, and the panel of each initiator 4 is provided with a group of signal lines, one group of signal line jacks 6 is connected to one group of signal lines, and each group of signal line jacks 6 is used to be inserted into the fixed position signal line jack 5.

[0031] Further, the panel of the main controller 3 is provided with a plurality of groups of signal line jacks 5, and the panel of each initiator 4 is provided with a group of signal lines, one group of signal line jacks 6 is connected to one group of signal lines, and each group of signal line jacks 6 is used to be inserted into the fixed position signal line jack 5.

[0032] The signal line jack 5 is used for a plurality of groups of signal line jacks, and is used to connect a plurality of initiators 4.

[0033] The main control operation panel 7 includes a display screen and control buttons, which are used to set the time and monitor the state.

[0034] The key switch knob 8 is used to turn on and off the main controller.

[0035] The main controller charging interface 9 is used to charge the built-in battery of the main controller.

[0036] Further, the panel of the initiator 4 is also provided with an explosion output interface 10, an initiator switch rocker 11, a charging and discharging conversion switch 12, a function switching lever 13 and an initiator charging interface 14.

[0037] The explosion output interface 10 is used to connect an external detonator.

[0038] The initiator switch rocker 11 is used to turn on and off the initiator.

[0039] The charging and discharging conversion switch 12 is used to switch between charging and discharging modes.

[0040] The function switching lever 13 is used to switch different working modes, such as voltage display, network resistance detection, etc.

[0041] The initiator charging interface 14 is used to charge the built-in battery of the initiator.

[0042] Further, one end of the lower box body 1 is hinged to one end of the cover body 2, the other end of the lower box body 1 is connected to the other end of the cover body 2 through a buckle, and the lower box body 1 is provided with a handle 15.

[0043] The working principle of the device is as follows:

[0044] The main controller 3 is connected with multiple initiators 4 through multiple groups of signal lines. The main control chip sends start signals to the initiators 4 in turn at preset time intervals. The signal amplification circuit inside each initiator 4 receives the control signals of the main controller 3 and performs amplification processing. The amplified signals pass through the control circuit of the initiator to trigger the charging and discharging process of the high-energy pulse capacitor. The user sets the start time of each initiator through the main control operation panel 7. The main control chip stores these time parameters in the memory and sends instructions in sequence at the start. Each initiator starts in turn at preset time intervals, realizing millisecond-level time control.

[0045] Both the main controller and the initiator are provided with a voltage monitoring module, which automatically stops charging when the voltage reaches the peak value to prevent overvoltage damage. A short-circuit protection mechanism is provided in the initiation circuit, which immediately cuts off the power supply when a short circuit is detected to prevent accidents. After the initiation is completed, the initiator automatically enters the discharging mode to safely release the remaining energy, ensuring the safety of the operator.

[0046] Embodiment 1:

[0047] The device is mainly used for segmented blasting in a large area. One main controller 3 and three initiators 4 with high-energy pulse capacitors are installed in each lower box body 1. The initiator is powered by a 6V DC battery with cyclic charging, and a special charger is configured to charge it through a 220V lighting power supply, which is environmentally friendly, reliable, and easy to operate. The box body is made of a high-impact engineering plastic shell with a protection level of IP07 and an impact resistance level of IK08 according to GB1410-1978, which has strong dustproof, waterproof, and corrosion-resistant properties. Its volume is less than 50% of the ordinary type, and it is safe and reliable for initiation, widely applicable to large and medium-scale blasting in open-pit mines, underground metal mines, earthwork projects, tunneling, urban controlled blasting, and water conservancy projects.

[0048] The technical parameters of the initiator are shown in Table 1:

[0049] Table 1: Initiator Technical Parameters

[0050]

[0051] The main controller and the initiator exchange data through a digital communication interface (such as SPI, I2C, or CAN bus) to ensure accurate transmission of instructions. The initiator is used to control electric detonators. According to the calculation of the national standard industrial electric detonator 2m copper leg wire full resistance ≤4 ohms, if an iron leg wire electric detonator is used, the initiation capacity is reduced by 40%. As shown in Table 2, according to GB-6722-2003, the maximum firing energy Kmax=8.7Ams 2, current intensity I=2.5A, and national standard copper leg wire industry electric detonator as the basis. If iron leg wire electric detonator is used, the initiation ability is reduced by 40%.

[0052] Table 2 initiator and detonator new energy parameter table

[0053]

[0054] The use method is as follows:

[0055] 1, open the control box cover, turn on the millisecond main controller main power switch, after the display window lights up, press the "set" key, and the working duration and millisecond interval time can be set according to the requirements. Usually, the duration is set to "200", and the interval millisecond is set to "30-50" milliseconds.

[0056] 2, connect the control line to the initiator terminal, and pay attention to the time sequence. Connect the corresponding main controller terminal head number.

[0057] 3, after the safety warning personnel retreat to the safe area, connect the blasting bus to the initiator output terminal, turn on the initiator main power switch, and the internal battery voltage (8.4V) is displayed in the power display window. When the "function switch" switch is in the voltage display file, the display window displays "0000", and the voltage display red light is on. When the switch is switched to the "network resistance" file, the display window displays "1", and the resistance display green light is on. It is indicated that the initiator power supply is working properly. Then operate the rotary switch to the "charging" file. At this time, the initiator starts to charge. When the voltage rises to the required voltage, turn the initiator knob to the "initiation" position, press the millisecond main controller "start" button, and the initiator will be initiated in turn according to the set time, realizing millisecond differential segmented initiation.

[0058] 4, after the initiation is completed, the initiator control knob is turned to the "discharge" position for discharge. After complete discharge, turn off the total power supply, and turn off the millisecond differential controller main power supply.

[0059] The above embodiment is only the preferred technical solution of the present application, and should not be regarded as the limitation of the present application. The protection scope of the present application should be based on the technical solution recorded in the claims, including the equivalent replacement scheme of the technical features recorded in the claims. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. A digital millisecond differential high-energy pulse controlled initiator, characterized by: The application relates to a millisecond delay blasting control device which comprises a lower box (1), a cover (2), a main controller (3) and a plurality of detonators (4), wherein the lower box (1) is connected with the cover (2), the main controller (3) and the detonators (4) are arranged in the lower box (1), the main controller (3) is connected with the detonators (4) through a plurality of groups of signal lines, and each group of signal lines corresponds to one detonator (4). The main controller (3) comprises a main control chip and a power supply module; the detonator (4) comprises a signal amplification circuit, a control circuit and a high-energy pulse capacitor; the power supply module is used for supplying power for the main control chip; the main control chip is electrically connected with the signal amplification circuit through the signal line; the signal amplification circuit is electrically connected with the control circuit; and the control circuit is electrically connected with the high-energy pulse capacitor. The signal amplification circuit in each detonator (4) receives the control signal of the main controller (3) and carries out amplification processing; the amplified signal passes through the control circuit of the detonator and triggers the charging and discharging process of the high-energy pulse capacitor. The main control chip is used for sending a starting signal to the detonator (4) according to a preset time interval, so as to realize millisecond-level time control.

2. A digital millisecond differential high-energy pulse control initiator according to claim 1, characterized in that: A plurality of groups of signal line jacks (5) are arranged on the panel of the main controller (3); one group of signal lines is arranged on the panel of each detonator (4); one group of signal lines is connected with one group of signal line plugs (6); and each group of signal line plugs (6) is used for being inserted into the fixed-position signal line jack (5).

3. A digital millisecond differential high-energy pulse control initiator according to claim 2, characterized in that: A main control operation panel (7), a key switch knob (8) and a main controller charging interface (9) are further arranged on the panel of the main controller (3).

4. A digital millisecond differential high-energy pulse control initiator according to claim 2, characterized in that: An explosion output interface (10), a detonator switch rocker (11), a charging and discharging conversion switch (12), a function switching lever (13) and a detonator charging interface (14) are further arranged on the panel of the detonator (4).

5. A digital millisecond differential high-energy pulse control initiator according to claim 2, characterized in that: One end of the lower box (1) is hingedly connected with one end of the cover (2); the other end of the lower box (1) is connected with the other end of the cover (2) through buckling; and a handle (15) is arranged on the lower box (1).

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