Method of action of the detonator

The mining detonator consists of an outer shell (upper and lower shells), an detonator movement, an detonator battery, a red indicator light for the detonator, a measuring column for the detonator connection column, a millisecond switch for the detonator, a conducting test for the dust cap and control handle, charging overvoltage protection, and a main circuit unit. The explosion-proof shell of the detonator is made of phenolic glass fiber, and the detonator wiring column, detonator measurement column, detonator indicator light, and millisecond switch shaft are all equipped with explosion-proof measures to pass through the shell panel.

3、 Method of action of the detonator

1. The conduction measurement method for detonators is the same as that provided with general detonators. (Can also be used as a check) Before detonation, press the ends of the two shooting busbars onto the two test terminals with your fingers. If the measurement light is on, it indicates that all wires are connected well, otherwise there may be a misfire.

2. After the charging and discharging blasting circuit of the detonator is tested to be qualified, connect the busbar to the wiring post, turn the switch to the (charging) position, connect the main circuit, and the oscillator emits a buzzing sound. After 10-20 seconds, the charging indicator light lights up, indicating that the voltage at both ends of the main capacitor has reached 1800 volts. At this time, turn the switch to the (blasting) position for blasting, and remove the key after the blasting process is completed.

4、 Technical parameters of the detonator

Applicable scope and purpose of mining detonator products

1、 The new type of detonator reduces its size: the circuit adopts modular design, improving the stability and reliability of the entire machine, making maintenance and repair more convenient; Using a maintenance free battery, it can be recharged more than 500 times, eliminating the need for battery replacement each time. Additionally, the detonator is equipped with a smart charger that can be charged like a mobile phone. After fully considering the user's requirements and usage costs, the battery is charged and discharged 500 times, which is equivalent to more than 1000 ordinary batteries. If each battery is charged at 2 yuan, the expenditure will be over 2000 yuan. The current of ordinary batteries is above 3 amperes, while the current of batteries is above 10 amperes. Moreover, the battery has fast charging and high charging capacity, making it difficult for ordinary batteries to store (leakage water). The use of batteries greatly reduces the number of times the detonator is opened, Added safety guarantees and improved work efficiency.

MFB capacitive detonator

2、 Applicable scope and purpose of the product

The capacitive detonator used in mining is suitable for underground coal mines and hazardous areas containing gas (methane) and coal dust,

When the ambient temperature is between -20 ° C to+40 ° C and the relative humidity is around 95%, it is used for detonating electricity,

It can also be used as detonating electricity in other mining, mountain excavation, rock excavation, and obstacle removal blasting projects.

Model: MFB-50, 200 series capacitor detonator

The NFB series detonator is used in mines with explosive mixtures such as methane and coal dust. It is used as a detonator in working environments with an early temperature of -10 ℃ to+35 ℃ and a relative humidity of 98%. It is also suitable for other mining, mountain excavation, rock excavation, and obstacle clearing projects as an energy device for detonating the detonator.

3、 Product Features

1. Phenolic glass fiber pressed shell.

2. Install components such as capacitors, millisecond switches, and charging indicator lights inside.

3. The operation key can only be inserted and removed when the millisecond switch is in the "release" position.