scholarly journals Phosgene Neutralization Chemistry for the Explosive Destruction System (EDS).

2021 ◽  
Author(s):  
Joseph Carlson ◽  
Robert Crocker
Keyword(s):  
Explosive Destruction

scholarly journals Controlling the process of explosive destruction of rocks in order to minimize dust formation and improve quality of rock mass

2018 ◽  
Vol 3 (10 (93)) ◽  
pp. 35-42
Author(s):  
Oksana Tverda ◽  
Leonid Plyatsuk ◽  
Mykola Repin ◽  
Kostiantyn Tkachuk
Keyword(s):  
Rock Mass ◽  
Dust Formation ◽  
Improve Quality ◽  
Destruction Of Rocks ◽  
Explosive Destruction

scholarly journals Scale effect of explosive destruction of spherical vessels: Dynamic crack propagation and branching

2016 ◽  
Vol 96 ◽  
pp. 173-180 ◽  
Author(s):  
Li Ma ◽  
Yang Du ◽  
Xiaogui Wang ◽  
Fan Zhang ◽  
Anda Zhang ◽  
...  
Keyword(s):  
Crack Propagation ◽  
Scale Effect ◽  
Dynamic Crack Propagation ◽  
Dynamic Crack ◽  
Explosive Destruction

scholarly journals Experience With Using Code Case 2564 to Design and Certify an Impulsively Loaded Vessel

2013 ◽  
Author(s):  
Brent Haroldsen ◽  
Jerome Stofleth ◽  
Mien Yip ◽  
Allan Caplan
Keyword(s):  
Lessons Learned ◽  
Regulatory Approval ◽  
Department Of Energy ◽  
Third Party ◽  
Us Army ◽  
The Us ◽  
User Design ◽  
Qualification Testing ◽  
To Receive ◽  
Explosive Destruction

Code Case 2564 for the design of impulsively loaded vessels was approved in January 2008. In 2010 the US Army Non-Stockpile Chemical Materiel Program, with support from Sandia National Laboratories, procured a vessel per this Code Case for use on the Explosive Destruction System (EDS). The vessel was delivered to the Army in August of 2010 and approved for use by the DoD Explosives Safety Board in 2012. Although others have used the methodology and design limits of the Code Case to analyze vessels, to our knowledge, this was the first vessel to receive an ASME explosive rating with a U3 stamp. This paper discusses lessons learned in the process. Of particular interest were issues related to defining the design basis in the User Design Specification and explosive qualification testing required for regulatory approval. Specifying and testing an impulsively loaded vessel is more complicated than a static pressure vessel because the loads depend on the size, shape, and location of the explosive charges in the vessel and on the kind of explosives used and the point of detonation. Historically the US Department of Defense and Department of Energy have required an explosive test. Currently the Code Case does not address testing requirements, but it would be beneficial if it did since having vetted, third party standards for explosive qualification testing would simplify the process for regulatory approval.

Design of Conical Shaped Charges for Prompt Initiation of TNT Chemical Munition Bursters

2002 ◽  
Author(s):  
Dale S. Preece ◽  
Jerome H. Stofleth ◽  
David L. Cole ◽  
Paul W. Cooper
Keyword(s):  
World War I ◽  
Shaped Charge ◽  
Toxic Chemicals ◽  
Mustard Gas ◽  
World War ◽  
Original Design ◽  
Portable System ◽  
Design Requirements ◽  
Shaped Charge Jet ◽  
Explosive Destruction

The Explosive Destruction System (EDS) has been designed at Sandia National Laboratories for the disposal of chemical munitions (phosgene, mustard gas, sarin etc.), many dating back to World War I. EDS is a portable system that is trailer mounted and consists of a vessel into which a chemical munition can be loaded and neutralized with linear and conical shaped charges. Gases are contained within the sealed chamber. The linear shaped charges split the munition in two and the conical is aimed at the explosive burster, in each munition, which is detonated by the shaped charge jet. Toxic chemicals remaining in the vessel following detonation are neutralized and disposed of. This paper documents the development of a new conical shaped charge (CSC) needed to reliably detonate explosive bursters in an expanding array of chemical munitions that are beyond what the device was originally designed to neutralize. Design of this new CSC was controlled by the need to deliver energy above the detonation threshold into the explosive after penetrating the outer steel casing, fluid, the burster casing and finally the explosive. Design considerations were driven by jet conditions at the steel/explosive interface inside the burster. Parameters to consider in CSC design include: 1) diameter, 2) liner thickness, 3) liner position in body, 4) explosive weight, and 5) liner shape or interior angle. The effects of these parameters on final CSC performance are examined in detail. CSC’s meeting the design specifications have been manufactured and tested. The performance of these charges is compared with the original design requirements.

scholarly journals The Direction of Drilling Wells as a Factor of Improving the Crushing of Sedimentary

2019 ◽  
Vol 105 ◽  
pp. 01053
Author(s):  
Igor Katanov ◽  
Andrey Sysoev ◽  
Ivan Panachev
Keyword(s):  
Rock Mass ◽  
Coal Mines ◽  
Sedimentary Rocks ◽  
Specific Consumption ◽  
Theoretical Reasoning ◽  
Explosive Charges ◽  
Positive Effect ◽  
Explosive Destruction

The task of the work is to improve the quality of preparation of the rock mass for excavation. Explosive destruction of the rock is based on several theories developed by well-known scientists. The improvement of quality of preparation of rock mass to excavation without an increase in the value of specific consumption of explosives is important in the present time. The analysis of scientific works and industrial results of explosive preparation of the overburden removal is made. It is established that depending on the angle of the explosive charges meeting with the rock layers, the quality of its crushing changes. Modern drilling machines can drill at any angle. It is proposed to drill wells perpendicular to the rock layers. The proposal differs in originality from the previously known principles of charge placement of explosives in wells. This method of charge placement has a positive effect in sedimentary rocks in coal mines. The results of industrial explosions in coal mines have confirmed the theoretical reasoning.

Damage investigation on the explosive destruction of a tank at a chlorine liquefaction plant

2014 ◽  
Vol 43 ◽  
pp. 120-132
Author(s):  
Ralph Bäßler ◽  
Arno Eberle
Keyword(s):  
Liquefaction Plant ◽  
Damage Investigation ◽  
Explosive Destruction

scholarly journals EDS Containment Vessel TNT Equivalence Testing

2017 ◽  
Author(s):  
Robert W. Crocker ◽  
Brent L. Haroldsen ◽  
Jerome H. Stofleth
Keyword(s):  
Free Volume ◽  
Pressure Vessel ◽  
Project Manager ◽  
Equivalence Testing ◽  
Phase 2 ◽  
Containment Vessel ◽  
Tnt Equivalent ◽  
Vessel Response ◽  
Tnt Equivalence ◽  
Explosive Destruction

The V26 containment vessel was procured by the Project Manager, Non-Stockpile Chemical Materiel (PMNSCM) for use on the Phase-2 Explosive Destruction Systems. It was fabricated under Code Case 2564 of the ASME Boiler and Pressure Vessel Code, which provides rules for the design of impulsively loaded vessels [1]. The explosive rating for the vessel, based on the Code Case, is nine (9) pounds TNT-equivalent for up to 637 detonations. This report documents the results of tests that were performed on the vessel at Sandia National Laboratories to qualify the vessel for explosive use [2]. Three of these explosive tests consisted of: (1) 9lbs bare charge of Composition C-4 (equivalent to 11.25lbs TNT); (2) a 7.2lbs bare charge of Composition C-4 (equivalent to 9lbs TNT); (3) a bare charge of 9lbs cast TNT. The results of these tests are compared in order to provide an understanding of how varying charge size affects vessel response when the ratio of free volume to charge volume is small, and in making direct comparisons between TNT and Composition C-4 for TNT equivalency calculations. In a previous paper [3], the 7.2lbs bare charge of Composition C-4, (2) above, was compared to 7.2lbs of Composition C-4 distributed into 6 charges.

scholarly journals INFLUENCE OF PARAMETERS OF EXPLOSIVE DESTRUCTION OF MINING BLOCKS OF COMPLEX GEOLOGICAL STRUCTURE ON THE PREPARATION OF THE MINING MASS FOR PROCESSING

2018 ◽  
pp. 68-74
Author(s):  
К.V. Babii
Keyword(s):  
Particle Size ◽  
Rock Mass ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Iron Ore ◽  
Geological Structure ◽  
Contact Zones ◽  
Complex Geological Structure ◽  
A Charge ◽  
Explosive Destruction

Purpose: to investigate the influence of the parameters of explosive destruction of mining blocks of complex geological structure on the production processes of mining and processing of iron ore. Determine the stability of the escarpment slopes during excavation of rocks in ore mining blocks with barren layers. Results. The analysis of geophysical methods for studying the structure of deposits. It is proposed to use the magnetic susceptibility method for well logging. The structure of mining blocks of a complex geological structure with contact zones "ore - host rocks" was investigated. It has been proven that for the effective use of equipment for the pre-enrichment of ore in a quarry there are conditions: the regulation of the granulometric composition of the rock mass and the reduction of ore splices with overburden rocks. It is proposed to use a charge design of an explosive with inert gaps or a charge section of a cumulative action in the explosive destruction of rocks with contact zones. The influence of parameters of explosive destruction of mining blocks of complex geological structure on the formation of technological complexes of ore beneficiation in quarries is established. The dependence of the factor of stability of slopes of slopes during excavation of rocks, depending on the geological parameters. Scientific novelty. The regularities of changes in the parameters of the ore mass flow (medium piece and oversize) are established depending on the diameter of the drilling-blast wells, which allows you to adjust the particle size distribution. Practical significance. Based on the established patterns and improvement of the design of well charges, their influence on the quality of the blown-up rock mass in the ledges of a complex geological structure has been substantiated, which makes it possible to form the corresponding technological complexes of ore dressing in quarries. The result is a significant increase in the productivity of the technological equipment of the mining enterprise and the profitability of iron ore mining. Key words: quarry, ledge, complex geological structure, downhole charge structures, particle size distribution.

scholarly journals Influence of surfactants on dispersed of silica dust under explosive destruction of coal-rock massif

2014 ◽  
Vol 8 (4) ◽  
pp. 431-435
Author(s):  
V Golinko ◽  
◽  
D Saveliev ◽  
Ya Liebiediev ◽  
K Ishchenko ◽  
...  
Keyword(s):  
Rock Massif ◽  
Silica Dust ◽  
Coal Rock ◽  
Explosive Destruction
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