rock emulsion explosive

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CN103880571A - Rock emulsion explosive and preparation ...

The invention discloses a rock emulsion explosive and a preparation method thereof. The oil phase material of the emulsion explosive is prepared by mixing polyisobutene succinic acid triethanolamine ester serving as a novel polymer emulsifier with soyabean lecithin, vacuum cut I oil, vacuum cut II oil, Vaseline, paraffin and microcrystalline wax, so that the flexibility of an emulsion matrix ...

rock emulsion explosive - fijnproeversensmaakbarbaren.nl

Rock powdery emulsion explosive (RPEE) is a new high performance explosive which contain no TNT in the formula. The mechanic sensitivity, heat sensitivity and detonator sens; The pH value of water phase No. 1 rock emulsion explosive was determined,and the effect on the detonation rate and brisance of rock emulsion explosive was found. Thus,the app

Chapter 2 EXPLOSIVES - National Park Service

2-1 through 2-6). With cartridge explosives, the confined velocity is seldom attained because complete confinement is usually impossible. For blasting in hard rock, a high-velocity explosive is preferable. In a softer or highly jointed rock, a low-velocity explosive, for example,(ANFO) with a heaving action may give satisfactory results at a ...

Pumpable emulsions (INNOVEX UG) – making underground ...

Nov 28, 2017· Over-break is significantly reduced. With emulsion explosives, less over-break means that secondary costs involved in transport of rock through the shaft system and beneficiation process are reduced. Without the sensitising agent, the emulsion and pump are unusable.

Blasting and Explosives Quick Reference Guide 2010

PF 3(kg/m) = Total explosives in the blast/volume of rock blasted (for kg/Tonne, divided by blasted tonnes T) RWS = AWS of explosive/AWS of ANFO x 100 RBS = (RWS explosive x explosive density)/ ... Titan 3000 and Titan 5000 emulsion blends, it may be used as a conservative guide..

PRIMING OF EXPLOSIVES FOR EFFICIENT BLASTING – Mining and ...

May 14, 2013· Tougher rock require high of shock energy explosives to break; whereas high Gas energy explosives are suitable for medium hard and softer rock. Thus, Emulsion explosives having high VOD (unconfined VOD to the range of 4500m/s) are suitable for tougher rock such as Hematite and ANFO having VOD of lower range (unconfined VOD to the range of 3500m ...

Field Testing for Emulsion Explosives - Rock Products

The major problems most emulsions experience is the crystallization of the ammonium nitrate (or other salts). This crystallization means that the emulsion is breaking down and the emulsion has a high probability of misfiring, producing NO x, and firing very weakly causing minimal fragmentation and increased ground vibration.This can be caused by improper chemicals, poor mixing, and aging of ...

Field Testing for AN Blend Explosives - rockproducts.com

Mar 30, 2017· Field Testing for AN Blend Explosives . Field Testing for AN Blend Explosives ... Written by Rock Products News. Blends Of Ammonium Nitrate and Emulsion Explosives are Gaining Widespread Popularity in Today's Blasting Industry. By Anthony Konya and Dr. Calvin J. Konya. B lends of ammonium nitrate and emulsion explosives are gaining widespread ...

Colloidal emulsion explosvie production - YouTube

May 24, 2016· Colloidal emulsion explosive is a high strength, robust, detonator sensitive emulsion explosive designed for surface and underground blasting. The explosive …

Blaster's Training Modules - Module 1 - Explosives

It is worth noting that water gels, slurries, and emulsion products can be formulated to produce either (1) cap-sensitive HE's—by adding sufficient amounts of HE sensitizers—or (2) BA's—by ... guideline when selecting explosives for rock blasting. Fume Class Fume class is a measure of the amount of toxic gases, primarily CO and NO x ...

Emulsion Explosive - TKD

Emulsion explosive can be classified into rock emulsion explosive, coal mine permissible emulsion explosive and opencast emulsion explosive. Rock emulsion explosive applies to blasting engineering in no danger of gas explosion or dust explosion.

Comparative Study of ANFO Versus Emulsion Use in ...

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 ...

Rock emulsion, China Rock emulsion manufacturers ...

Rock emulsion,wholesale Rock emulsion worldwide.Maxwell is a professional Rock emulsion manufacturer and supplier in Qingdao, China.

No.2 Rock blasting emulsion explosive,No.2 Rock Blasting ...

No.2 Rock blasting emulsion explosive,No.2 Rock Blasting Colloidal Emulsion Explosive,Explosives,Products,,Main Applications:It can be widely applied to all kinds of hard rock blasting and controlled demolition blasting without explosive atmosphere o

user tips for Rock emulsion explosives No.2 - tyhent.com

The emulsion explosive production line, imported from the US, is continuous and automated with computer video process monitoring. As the first domestic emulsion production line which ranks among the world leading levels, its facility is high technical with …

explosives – Mining and Blasting

Jun 14, 2018· Explosives Energy Release and Rock Breakage: Mechanism of rock breakage while release of Explosives energy upon detonation and other relevant points are discussed below: When an explosive charge is detonated, chemical reaction occur which, very rapidly changes the solid or liquid explosive mass into a hot gases.

Rock Emulsion Explosive |Gelatinous nitroglycerine ...

At the present products: Series of explosive nitroglycerine (Gelatinous dynamite), Rock Emulsion Explosive, Third grade coal mines permitted emulsion explosives, ammonium nitrate explosive follow-ladder, Seismic Charge, Broadband Seismic Charge, broken tools, shaped shells and nearly 30 specifications civil explosive products.

Construction Planning, Equipment, CHAPTER BLASTING …

CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf Slide No. 12 COMMERCIAL EXPLOSIVES The first three categories, dynamite, slurries, and ANFO, are the principal explosives used for borehole charges. Two-component or binary explosives are normally not classified as an explosive until mixed. CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf Slide No. 13 ...

Practical methods to control explosives losses and reduce ...

Practical methods to control explosives losses ... undetonated explosives in the rock ... and precompression failure in emulsion and watergel explosives. Many blasting incidents, often with severe damage to nearby structures, have been caused by propagating dynamite. In critical blasting areas, the

Explosive Characteristics and Performance

fragmentation, rock displacement, ground vibration and air overpressure. Explosive efficiency varies from 35% to 90% of maximum energy (this is the actual energy delivered in a blast is 35% to 90% of theoretical maximum) The actual amount of energy delivered from any blast hole is unknown.

Let's Blast! - YouTube

Sep 22, 2012· NOTE: Although this video shows an up-close look at the blasting process, NEVER go near an active surface mine or blast site without Federal …

What is emulsion slurry explosive - answers.com

It is a jelly type explosive that can be pumped into holes in rock for blasting. It is an emulsion (where two things that don't usually mix are mixed- like oil and water) It consists of an ...

Minimum Burning Pressures of Water-based Emulsion ...

This manuscript describes a protocol to measure the minimum pressure required for sustained burning of water-based emulsion explosives. Pumping water-based emulsion explosives for blasting applications can be very hazardous, as demonstrated by a number of pump accidents around the globe in the last decades, including some that resulted in ...

List of Explosives Approved for Use in Hong Kong (updated ...

List of Explosives Approved for Use in Hong Kong 0241 1.1D RJ3-emulsion explosives (Rock emulsion explosives) Hunan Nanling Industrial Explosive Matrerials Company Limited China Hongda Blasting (HK) Engineering and Consulting Company Limited Emulex 150 Packaged Emulsion Explosive (25mm diameter x 200mm length) (50mm diameter x 400mm length)

Explosives for Rock Blasting | Dyno Nobel

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. Skip to main content. Dyno Nobel is a leading supplier of industrial explosives and blasting services to the mining, quarrying, seismic and construction industries. ...

Chapter 8 BLAST DESIGN - National Park Service

To obtain well-fragmented rock by blasting, explosive energy must be well distributed throughout the rock. To be effective in rock blasting, this energy must be applied at the proper millisecond delay interval to allow for optimum rock movement. The type and cost of explosives will vary from one operation to another, dependent upon many conditions.

emulsion explosive, emulsion, Compound Oil Phase, making ...

(Emulsion Explosive Use) Compound Oil Phase ⅠInstruction Manual. 1. Specific Standard: Emulsion explosive wji989-90. 2. Characteristic: Compound wax and emulsifier technology with applying various doping agent, which can replace the oil phase used in the manufacturing process of emulsion explosive.

Rock Blasting and Explosives Engineering - Google Books

Rock Blasting and Explosives Engineering covers the practical engineering aspects of many different kinds of rock blasting. It includes a thorough analysis of the cost of the entire process of tunneling by drilling and blasting in comparison with full-face boring. Also covered are the fundamental sciences of rock mass and material strength, the thermal decomposition, burning, shock initiation ...

ANFO - Wikipedia

ANFO has a moderate velocity compared to other industrial explosives, measuring 3,200 m/s in 130 mm (5 in) diameter, unconfined, at ambient temperature. ANFO is a tertiary explosive, meaning that it cannot be set off by the small quantity of

Dangers of Toxic Fumes from Blasting

Emulsion blasting agents are water resistant and may be loaded in bulk in wet boreholes. ANFO/emulsion blends exhibit water resistance to varying degrees depending on the ratio of ANFO to 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.