For the powder emulsion explosives on the test condition with relative humidity of 26% and 70%, εr is 2.92, t1/2 is 57720s and 11220s, r is 83272s and 16187s, p is 3.22 × 1015Ω·m and 6.26 × 1014Ω·m, respectively.
The transformation of the flowmeter and the control valve for water and oil phase flow,the control devices for oil water phase ratio and blast hole charge and other control devices has eliminated the distinct dificiencies in the quality control of on site mixed loading car of emulsified explosive and realized its automatic control so as to improve the quality of the products of emulsion and emulsified explosive and their blasting effect.
Taking Datong Coal Mine as the example, this paper introduces various factors influencing the safety in production of the powdery emulsive explosive, and puts forward some measures for the safety in production of the powdery emulsive explosive.
Nano-MnFe2O4 powder synthesis by detonation of emulsion explosive
Blast vibration and its attenuation within the rock mass immediately adjacent to a blast hole (2-15 m) were monitored for a blast hole diameter of 100 mm and a 2.4 m column of an emulsion explosive charge.
The main component of an emulsion explosive is a water-in-oil emulsion consisting of a supersaturated ammonium nitrate (AN) water phase, finely dispersed in an oil phase.
Research of thermal decomposition kinetic characteristic of emulsion explosive base containing Fe and Mn elements
The detonation properties of a water-emulsion explosive are studied.