A detonator contains an easy-to-ignite primary explosive that provides the initial activation energy to start the detonation in the main charge. Explosives commonly used in detonators include mercury fulminate, lead azide, lead styphnate, tetryl, and DDNP.
What are explosives called?
EXPLOSIVE – Any chemical compound, mixture, or device, the primary or common purpose of which is to function by explosion or to initiate explosives; the term includes dynamite and other high explosives, black powder, pellet powder, initiating explosives, detonators, safety fuses, squibs, detonating cord, igniter cord.
What is a blasthole?
Definition of blasthole 1 : a hole in the bottom of a pump stock through which water enters. 2 : the hole into which a blasting charge is inserted.
What are blasting agents?
A blasting agent is any material or mixture, consisting of a fuel and oxidizer, intended for blasting, not otherwise classified as an explosive and in which none of the ingredients are classified as an explosive, provided that the finished product, as mixed and packaged for use or shipment, cannot be detonated by means …
What is plain detonator?
A detonator for use with a safety fuse. It consists of an aluminum tube closed at one end and partly filled with a sensitive initiating explosive. The safety fuse is then secured in position by indenting the detonator tube, this process being known as crimping. …
What is train detonator?
Detonators are used to stop trains in an emergency when other options fail. An explosive device that is akin to an anti-tank landmine, but just emits a loud sound, is partly responsible for your safe travel by train. The Railways use these detonators sparingly — mostly to stop a train from chugging into a disaster.
What are examples of explosives?
Examples include primary explosives such as nitroglycerin that can detonate with little or no stimulus and secondary explosives such as dynamite (trinitrotoluene, TNT) that require a strong shock (from a detonator such as a blasting cap). Low explosives change into gases by burning or combustion.
What is rotary drilling?
Rotary drilling is used to form a deep observation borehole or for obtaining representative samples of rock. The drilling method involves a powered rotary cutting head on the end of a shaft, driven into the ground as it rotates. The system requires lubrication (air, water or drilling mud) to keep the cutting head cool.
What is sublevel stoping?
Sublevel stoping generally is a large-scale open stoping method. It sometimes is referred to as long-hole or blasthole stoping. This method usually is applied to strong ore bodies that require minimal support and are surrounded by strong country rock. Sublevel stoping is not dependent on the width of the ore body.
What is a high explosive?
High explosives are materials that are characterized by a very high rate of reaction, high pressure development, and the presence of a detonation wave. The guideline applies to the following explosives: blasting explosives in bulk or in packaged form, e.g.; ANFO (ammonium nitrate / fuel oil);
What is the meaning of the word detonator?
Define detonator. detonator synonyms, detonator pronunciation, detonator translation, English dictionary definition of detonator. n. 1. A device, such as a fuse or percussion cap, used to set off an explosive charge.
What is a detdetonating device?
detonating device, cap blasting cap – a small tube filled with detonating substances; used to detonate high explosives explosive device – device that bursts with sudden violence from internal energy percussion cap – a detonator that explodes when struck
How was the detonator connected to the screw top?
The detonator was connected with the screw top of the can. The discovery of evidence in the form of three detonators and some other equipment had not yet been investigated. This time it came from three detonators that the police had succeeded in finding while looking for other evidence.
What did the patient hand in his detonator to the Army?
The patient was persuaded to hand in his detonator and dynamite to the army. This initial report opens with the ‘panic’ of local residents and, as its title suggests, it is concerned primarily with the explosion of the recovered detonators. The package contained three sticks of gelignite, a fuse detonator and rivets.
