Emulsion Explosives An emulsion is a physical mixture of two immiscible liquids (often water and oil) formed by shearing discrete droplets of one liquid phase into a continuous phase of the other liquid. Emulsion explosives typically comprise an ammonium nitrate solution in a continuous oil phase.
What is the difference between ANFO and emulsion?
ANFO and emulsion explosives has their respective advantages and disadvantages such as ANFO is not water resistant and emulsion is water resistant.
What is emulsion explosive composition?
A water-in-oil emulsion explosive composition is described. An emulsion composition is prepared consisting of 1) ammonium nitrate or a mixture of ammonium nitrate and the other inorganic oxidizer salts, 2) water, 3) oils and/or waxes, and 4) a sorbitan fatty acid ester surfactant.
What are the 3 types of explosives?
explosive, any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period. There are three fundamental types: mechanical, nuclear, and chemical. A mechanical explosive is one that depends on a physical reaction, such as overloading a container with compressed air.
What are 2 types of high explosives?
High explosives will be referred to Type E explosives, and there will be three sub-types in this group:
- 1 – blasting and bulk explosives (explosives used for commercial blasting applications or for their manufacture);
- 2 – perforating explosives (intended for use in the oil and gas well industry);
What is bulk emulsion explosives?
On-site MEMUBulk Emulsion This is an explosive manufactured and delivered on-site in vertical holes. This explosive is specially designed for use in quarries and on public works sites. It is recommended for blasting hard and very hard rocks that require high blasting powder factors.
What is the most powerful explosive material?
PETN. One of the most powerful explosive chemicals known to us is PETN, which contains nitro groups which are similar to that in TNT and the nitroglycerin in dynamite. But the presence of more of these nitro groups means it explodes with more power.
What is used as emulsifier in emulsion explosion?
Emulsifiers currently used in emulsion explosives include et- hanolamine adducts of polyisobutylene succinic anhydride (PI- BSA) and SMO (Fig. 1).
Which is the sensitizer in emulsion explosive?
The sensitizer is the heavier components of emulsion explosive, using reusable experimental device to simulate the environment of deep water charge, perlite and glass microspheres in two kinds of commonly used physical sensitizing agent content on properties of emulsion explosives with deep water pressure effect.
What are bulk explosives?
Bulk explosives range from simple ANFO (ammonium nitrate + fuel oil) to straight emulsions and include a wide variety of ANFO/emulsion blends – each with unique performance/cost characteristics. …
How is emulsion packaged and stored?
Emulsion is packaged in 25kg polywoven bags (2 x 12.5kg), taking into account human ergonomics. This packaging arrangement greatly improves stock control and mobility. Bagged emulsion can be stored on surface and/or underground workings.
Why choose AECI mining explosives?
AECI Mining Explosives offers the latest generation products and services for blasting operations, such as bulk explosives, packaged explosives, initiating systems, blasting accessories and delivery systems. Intelligent Software
How are bulk emulsions delivered from underground mines?
Underground mines, up to a certain depth, have the option of bulk emulsion deliveries by means of the Vertical Drop delivery system. The Vertical Drop can be conducted from surface or from a dedicated underground distribution point to a centralised storage area where MCU’s are refilled.
What are underunderground base emulsions?
Underground base emulsions comprise of an oxidiser and fuel blend. It is classified as a non-explosive. A sensitiser needs to be added during the charging process to render the emulsion an explosive. Portable charging units (PCU) are used in conjunction with pre-packed bagged emulsion and bottled sensitiser.
