A detonator with network resistance measurement and adaptive pressurization

Abstract

The invention discloses a priming apparatus with the network resistance measuring function and the self-adaptation pressurizing function. The apparatus comprises a network resistance measuring circuit, a charging voltage measuring circuit and a charging control circuit. The output end of a constant-current source module sequentially passes through a resistor R15 and a capacitor C21 and is connected with a power ground gnd, a network resistance measuring end ad1 is formed at the connecting position of the capacitor C21 and the resistor R15, and the network resistance measuring end ad1 is connected with the input end of a microcontroller; a voltage measuring end ad2 is formed at the output end of an operational amplifier, and is connected with the input end of the microcontroller; a base electrode of an audion Q6 passes through a resistor R17 to form a charging control end dr2, and the charging control end dr2 is connected with the output end of the microcontroller. According to the priming apparatus, adoption of priming apparatuses of a plurality of specifications in the past is avoided, fault diagnosis can be carried out on a network, voltages at the two ends of a storage capacitor can be adjusted in a self-adaptation mode according to the network resistance value, an electric detonator on the network can be completely detonated, and petard accidents can be avoided.

Description

technical field [0001] The present invention relates to a detonator with network resistance measurement and self-adaptive pressurization, more specifically, a detonator with network resistance measurement and self-adaptive pressurization. Background technique [0002] As a tool for detonating series-connected electric detonators, the mine detonator is used in the particularity of coal mine operations, and has strict requirements on the intrinsic safety and explosion-proof characteristics of the detonator. The specification (capacity) of the detonator is represented by the rated number of detonators, and its series are: 10 rounds, 25 rounds, 50 rounds, 100 rounds, 150 rounds, 200 rounds, etc. The reason why it is necessary to design the model of the detonator according to the quantity of detonated electric detonators is that the ignition impulses required by different quantities of electric detonators are not equal. The performance of the storage capacitor is that the chargi...

AI Technical Summary

Problems solved by technology

The performance of the storage capacitor is that the charging voltage of the capacitor is different. If the voltage at both ends of the capacitor is too high, it is easy to cause a spark accident before detonation, which will have an adverse effect on safety; "Phenomenon, for the unignited electric detonators scattered in the coal mine roadway, there is undoubtedly a huge potential safety hazard

[0003] Detonators in coal mining need to select the number of electric detonators according to the actual situation on site. At present, different types of detonators are required to detonate different numbers of electric detonators. This requires the detonators to carry and carry It is very cumbersome to replace the detonator with suitable specifications in real time

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