Detonator is the main initiating material in blasting engineering, and its function is to generate initiating energy to detonate various explosives, detonating cord and booster tube.
Coal mine explosives, as the name implies, refer to explosives that are allowed to be used in underground blasting operations of coal mines with gas and coal dust explosion hazards. Explosives are more and more widely used in various sectors of the national economy because of their advantages of low cost, labor saving, speeding up engineering construction and working in special environment. In mining, large-scale blasting of explosives is used to mine metal mines and open-pit coal mines. At present, there are also safety explosives, coal mine safety explosives and coal mine explosives in many monographs. After careful study, these terms are not equal to the concept of permissible explosives in coal mines. Indeed, in the early days of China, the explosives allowed to be used in coal mines were called safe explosives.