Emulsion explosive and preparation method thereof

Abstract

The invention relates to an emulsion explosive and a preparation method thereof. The emulsion explosive is prepared from the following raw materials and auxiliary materials in percentage by weight: 70 to 85 percent of ammonium nitrate, 2 to 10 percent of sodium nitrate, 5 to 15 percent of water, 1 to 5 percent of composite wax, 0.5 to 5 percent of composite emulsifier, 0.5 to 3 percent of Vaseline and 0.1 to 2 percent of mechanical oil. The emulsion explosive is low in cost, proper in state and performance, accurately metered, convenient to use, simple in process, easy to operate, safe and reliable, and has high explosion performance, high brisance and strong power.

Description

technical field [0001] The invention relates to an emulsion explosive and a preparation method thereof. Background technique [0002] Emulsion explosive is to disperse more than 90w% of inorganic oxidant salt solution in the oil phase of less than 10w% under the action of emulsifier. The emulsified particles are in a closely arranged polyhedral structure, and their thermodynamic properties are extremely unstable, so they are dispersed in the oil phase. The supersaturated solution exists in the form of tiny supercooled droplets, which are easy to aggregate and crystallize, so that the emulsion explosive loses its detonation sensitivity. In recent years, with the development of polymer emulsifiers and their application in emulsion explosives, the stability of prepared emulsion explosives has been greatly improved. However, this kind of polymer emulsifier is easy to decompose at high temperature to generate nitrogen and carbon dioxide, which reduces the emulsification efficien...

AI Technical Summary

Problems solved by technology

However, this kind of polymer emulsifier is easy to decompose at high temperature to generate nitrogen and carbon dioxide, which reduces the emulsification efficiency, and makes the emulsification matrix contain a certain amount of gas, which reduces the density of the emulsification matrix, so that the emulsification matrix has a certain detonation sensitivity. , affecting the safe production of emulsion explosives

In addition, these patents all use petroleum refined products as the basic raw materials of the oil phase, so that the oil / wax is separated in the petroleum processing process and made into corresponding paraffin, ozokerite, lubricating oil and other commercially available petroleum products and then re-blended, resulting in unnecessary manpower , material and energy waste

[0003] The original emulsion explosive formula, the product is hard and inconvenient to charge