Industrial explosives , also known as civil explosives, flammable and oxidizing agent is based on the main body, in accordance with the oxygen balance principle constitutes the explosive mixture , a non- ideal explosives. Industrial explosives with low cost, simple to manufacture , application and reliable, which is widely used in mining metallurgy , petroleum geology, transportation and hydropower, forestry construction , metalworking and controlled blasting and other aspects . With the construction of industrial explosives with the continuous development of national economies , varieties and production of industrial explosives demand is increasing, and therefore have developed rapidly.
A wide variety of industrial explosives , according to the composite characteristics can be divided into ammonium nitrate explosive , nitro Gan explosives ( nitroglycerine explosives ) , ANFO , water explosives ( emulsion explosives , explosives and water gel slurry explosives ) and special explosives ( aluminized explosives , liquid explosives , etc. ) . Usually divided into the rock by using the occasion of explosives, dynamite and open permissible explosives .
Ammonium nitrate explosives ( TNT explosives )
Characterized ammonium nitrate
explosive composition contains from 7 % to 20% of elemental explosive TNT as sensitizer . Therefore initiation sensitivity is higher, better performance explosion , blasting power is high, especially for small diameter water blasting various occasions . With detonator initiation sensitivity , it is often used as ANFO explosives and other low moisture sensitivity of explosives detonated kits .
Ammonium nitrate explosive , sometimes adding metal powder ( such as aluminum , magnesium , etc. ) , or high explosives ( such as RDX , PETN , etc. ) , made of high- power , high -speed and high explosive dynamite Brisance for special hard rock, special bursting and explosion processing and other fields .
Ammonium nitrate explosive , sometimes adding an inert diluent ( eg sand , diatomaceous earth , etc. ) to obtain low- power , low detonation velocity and low Brisance explosives, used for soft media blasting, controlled blasting does not charge coupling and other special blasting explosive welding projects.
Small diameter ammonium nitrate explosive charge is not coincidence charge for controlled blasting is another important way , this is because it has a higher sensitivity and smaller critical detonation diameter of the decision.
Therefore, ammonia dynamite has been widely used at home and abroad varieties of industrial explosives .
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