A Methane Locking Detonator with Computable Impulse Energy

Abstract

The invention relates to a methane-locking exploder with a function of impact energy calculation. The methane-locking exploder comprises a battery, a multi-layer millisecond switch, a microcontroller, a first voltage stabilizing module, a constant current source, a second voltage stabilizing module, a transformer, a power-storage capacitor C7, a Hall current sensor, a linear photoelectric coupler, a leading wire anode and a leading wire cathode. A network resistance measuring end ad1 is formed at the connection of a resistor R15 and a capacitor C21. The output end of the operational amplifier forms a voltage measuring end ad2. The output end of a comparator forms a discharge time measuring end sr1. The methane-locking exploder has the advantages that energy of the exploder is calculated by detecting network resistance, charging voltage and charging time; through detection on an output signal of a methane alarm, when methane exists in a blasting environment, the alarm signal can be locked, and perils are avoided.

Description

technical field [0001] The invention relates to a detonator, more specifically, to a methane locking detonator capable of calculating impulse energy. 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 charging voltage of the capacitor is different. If the voltage at both ends of the capacitor is...

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

Using different types of detonators according to the number of detonated electric detonators is undoubtedly very cumbersome to use

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