The energy that an explosive is able to deliver to do useful work: Energy delivered to the rock mass before the gasses vent to the atmosphere (Calculated using thermodynamic codes)

Product Description: Our 2 # Rock Emulsion Explosive is semi-solid grease, is the most advanced international civil explosives, this explosives is a kind of environment-friendly non-TNT-water-resistant industrial explosives, with excellent water resistance.

science • technique nr 1/2016 • tom 70 • 11 Analysis of selected parameters of saletrols and emulsion explosives Ramona SITKIEWICZ-WOŁODKO, Andrzej MARANDA* – Department of Explosives, Faculty of

TUNNELLING IN ROCKS – PRESENT TECHNOLOGY AND FUTURE CHALLENGES ZHAO Jian Professor of Rock Mechanics and Tunnelling Swiss Federal Institute of Technology (EPFL) Lausanne, Switzerland ... In 1980s, emulsion explosive developed and used in tunnelling since 1990s. 11 Rock Excavation: Blasting Technology ...

The company was established in 1976 to manufacture NPX, a nitro paraffin explosive for rock blasting then in 1983 they started to produce water-in-oil emulsion explosive with the technical collaboration of …

Controlling high risk blasting in an urban environment The Airport Link Story International Society of Explosives Engineers ... hard rock in three areas on Australia's largest road infrastructure project; the Airportlink Project in ... cheaper that packaged emulsion explosives typically used in …

Properties of Explosive Emulsion Emulsion explosives are much better water resistant than water gel slurry or ANFO; as oil phase is at outside i.e., water phase is enveloped within oil phase (Water – in – Oil emulsion).

Based on the burying depth of the explosives, the blasting crater volume was fitted by the method of least squares and the characteristic curve of the blasting crater was obtained using the MATLAB software. ... 1.45, 1.5, 1.55, 1.6 and 1.8 m, i.e., 20 boreholes altogether. Explosives used for the test were #2 rock emulsion explosives, produced ...

Emulsion explosives. Emulinit 2; Emulinit 8M; Permitted explosives. Powder explosives. Metanit Specjalny E7H; ... Rock explosives. Ergodyn 22E. Ergodyn 22E Nitroestser rock... see the product. Ergodyn 30E. Ergodyn 30E ... see the product. Ergodyn 35E.

Emulsion explosive anfo explosives, the advantages of slurry explosive and water gel explosive with good explosion property, the production and use of safety, no pollution, strong water resistance and a series of advantages, has become one of the widely used in modern industrial explosive varieties.

No. 2 rock emulsion explosive Introduction and application: This product is made from ammonium nitrate aqueous solution as the dispersed phase, with special hydrocarbons as continuous phase, by surfactant by the emulsification of water-in-oil emulsoid type, then through chemical sensitization and.

 · PRIMING OF EXPLOSIVES FOR EFFICIENT BLASTING By: Partha Das Sharma 1. INTRODUCTION: The massive use of blasting agents such as ANFO, Heavy ANFO etc., in rock breakage has brought about an important development of initiation and priming techniques. This is due to, on one hand, the relative insensitivity of these compounds and, on the other…

2# Rock Emulsion Explosive (50mm diameter x 350mm length) 1# & 2# Rock Emulsion Explosive (32mm diameter x 200mm length) (50mm diameter x 435mm length) (50mm diameter x 485mm length) (60mm diameter x 340mm length) Hunan Nanling Industrial Explosive Matrerials Company Limited

Testing of mining explosives with regard to the content of carbon oxides and nitrogen oxides in their detonation products. ... Rock explosives (ammonites, dynamites, emulsion explosives) ...

History of Explosives and Blasting In the US and Canada alone, blasters use more than 6 billion pounds of explosives and 75 million detonators per year. ... 1940's Self propelled open pit rock drills introduced. ... 1969 Emulsion explosives introduced. 1960's & 70's ...

Emulsion Field Testing Figure 2 - Emulsion Crystals (crystals so large individual bubbles cannot be seen). The major problems most emulsions experience is …

Commercial Explosives and Industrial Chemicals Nitroglycerine Based Dynamites. 90 ... all types of rock blasting operations and is particularly used as main charge (with primer) in large diameter ... Seismic emulsion explosives meet the highest standard of safety

 · Guizhou Jiulian Industrial Explosive Material Development Co., Ltd. engages in the research, development, manufacture, and sale of civilian explosive equipment products in …

A Century of Bureau of Mines/NIOSH Explosives Research ... emulsion-type explosives were approved and introduced for use in coal mines in 1981. These explosives were in the ... commercial version of the sheathed explosive charge, the Rock-Buster. USBM LABS Explosives …

Blasting - Courses and Live Webcasts. ... Mine Safety and Health Training - Handling of Explosives for Underground Mining Online Course | Self Paced : Practical Rock Engineering 5 - Excavation and Support Online Course | Self Paced : Underground Mining Practice ...

Types of Explosives In this chapter, we will discuss the classes of explosive, which depends on the types molecules used (their chemistry), and the mix of different molecules used. We will be primarily discussing high explosives, since almost all explosives since black powder are of this type.

Tunnel Blasting – Emulsion Explosives and Proper Blast Design Are - Free download as PDF File (.pdf) or read online for free.

Rock & Aggregate Equipment Marketplace; Explosives and Blasting Supplies; Explosives-Emulsions and Blends. Explosives-Emulsions and Blends (2 companies found) Compare and research Emulsion Explosive companies and businesses online.

include the use of explosives for rock breaking. The predominant explosive used for ore and overburden removal will be ammonium nitrate, used to manufacture Ammonium Nitrate Fuel Oil (ANFO) and emulsion

Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay) and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, and patented in 1867.

Dyno Nobel's bulk explosives range from simple ANFO (ammonium nitrate + fuel oil) to straight emulsions and include a wide variety of ANFO /emulsion blends. View our range here. Explosives for Rock Blasting | Dyno Nobel

Construction Blasting Fundamentals This article is geared to providing basic practical knowledge about commercial explosives, blast physics, rock properties, construction blast design, controlled blasting techniques, ground vibration, and air blast exposures.

Surface Bulk Emulsions. This product have has been created to optimise blasting in surface mining and are a this is a cost-effective and environmentally friendly emulsion.

ANFO, Emulsion and Heavy ANFO blends - Useful explosive and blasting agent for modern day blasting - Presentation Transcript Needed for an explosion. Ammonium Nitrate (AN) An is a weak explosive base, its explosion temperature being 1130 degree …

This column charge explosive is used for blasting all types of rock formations in combination with Emulsion booster explosives. It is available in 83mm and above sizes. KELEM–800

Chapter 8 BLAST DESIGN (Figure 8-2) Staggered pattern ... which compares the explosive energy to a quantity of rock broken. The explosive energy distribution within the entire blast is then evaluated along with its resulting fragmentation and ... from 50 to 80 percent of their calculated energies. As a result, emulsion explosives are not only ...

An effective selection of bulk explosives cannot be made based on price and the claims made on a ... • Large Magnetite mine ran 1.05 gcm-3density bulk emulsion explosives for 6 months compared ... Explosive in blast hole Rock fracture Crush zone

Sweden where Bulk Emulsion Explosives have been used. ... rock type can be described as horisontally bedded limestone. Two big quarries, Nordkalk and Cémenta, on the northern part excavate 5 million tonnes per year for cement industry and steel production.

ANFO is a tertiary explosive, ... Charging a hole with ANFO for rock blasting. In the mining industry, the term ANFO specifically describes a mixture of solid ammonium nitrate prills and diesel fuel. ... it is generally more productive to instead use a water-resistant explosive such as emulsion. Regulatory treatment. In most jurisdictions, ...

emulsion. The explosive supplier can recommend a mix ratio that is appropriate for a given application. 2. Determine where the blasting fumes are likely to go. ... be created by broken rock from an earlier blast (ISEE, 1998), a hill seam (a pathway caused by the ... Dangers of Toxic Fumes from Blasting ...

Zhejiang Limin Chemical Industry Co.,Ltd. is a designated production enterprise of national civil explosive equipments. The company was formerly known as Zhejiang Limin Chemical Factory founded in 1965, and was affiliated to Zhejiang Province National Defense Science and Technology Industry Office; it began the production of Emulsion explosives since 1983 as the earliest civil explosive ...

Wuhan Kangzheng Science and Technology Co., Ltd. is a professional exporter of explosives. Our hot products are as follows : porous prills ammonium nitrate, detonators, emulsion explosive, primacord, sodium cyanide and other mining chemicals.

The same result will be obtained with an AN based emulsion explosive primer, provided that its diameter is close to the blasthole diameter. Figure 2 shows a primer that has a stable detonation velocity greater than the ANFO stable detonation. ... Explosives Energy Release and Rock Breakage: ...

user tips for Rock emulsion explosives No.2.Storage, use, transportation and other matters needing attention.

Comparative Study of ANFO Versus Emulsion Use in Anisotropic Jointed Rock Mass ... the effects of explosives on the rock mass, advance per blast, fragmentation, re-entry periods and charging time ...