Infusible explosives

A central location where instmment leads are short is preferred. In modem faciHties with distributed control systems, all units are controUed from a central control room with few operators. Only a few roving operators are available to spot trouble. It is desirable to deep process equipment a minimum of 8 m away from the control room. Any equipment and hydrocarbon-containing equipment should be separated by at least 15 m if possible. Most control rooms are designed with blastproof constmction and have emergency backup power and air conditioning. The room is pressuri2ed to prevent infusion of outside air that may have hydrocarbon content in the explosive range. 

The ketenides separate as insoluble, infusible solids. The perchlorate derivative II (Y = CIO4) is dangerously explosive. 

High explosives will be classified primarily according to their consistency, which may be fusible, semi-fusible or infusible, plastic or liquid. They will then be arranged according to their most characteristic component. 

Other examples of infusible explosives are the Ammonites with the composition shown in Table 51. 

The preparation of infusible (loose powder) ammonium nitrate mixtures is usually carried out in the same way as the manufacture of composite mining explosives. Since the military explosives are not very sensitive to mechanical stimulants, and it is important to obtain a high density, mixing is usually performed by edge runner mills. 

Demelenne [93] experimented in Belgium with small charges of explosives, using the gas pressure that developed as the motive force to obtain the desired infusion. A considerable reduction of coal-dust (by ca. 40%) was claimed. 

The new technique of mining coal is based on the introduction of water at a pressure ranging from 100 to 400 lb per sq. in. The water is forced by the infusion pump into the shothole which is loaded with Hydrobel explosive and sealed with stemming. 

Coal Mine Explosions Measures for Preventing and Arresting Them. As a result of investigations conducted by various European organizations and individuals before and after WWI, the following methods were recommended in Europe to combat expln hazards a)Infusion of water under pressure into the coal before it is broken down b)Spraying with water all accessible roads, roof and sides of mines with water in sufficient amt to ensure that the dust contains at least 30% of w c)Instead of water an incombustible dust can be used for spraying. It should be done is such a manner that the amt of coal dust in mixts does not exceed 50% (Refs 12, 22, 23 31)... 

Stirnabbrand = face burning 58 140 Stoppine = quick-match cambric 272 storage of explosives 138 139 299 Stoftgriffmaschinen = blasting machines wiht impact knob 37 Stofttrankungssprengen = pulsed infusion shotfiring 270 StoR>welle = shock wave 80 straight dynamites 27 strands 66... 

CtHnbined blasting and water infusion for coal breaking Liquid oxygen explosives (oxyliquits)... 

Fusible explosives Mixtures of nitro compounds Mixtures with ammonium nitrate Manufacture and selection of fusible mixtures The flegmatizaiion of fusible mixtures Semi-fusible and infusible explosives Mixtures with nitrates — mainly with ammonium nitrate Mixtures with aluminium and other metak The preparation of S-iypc mixtures Mixtures with chlorates and perchlorates Mixtures with potassium and sodium chlorates Mixtures with potassium and ammonium perchlorates Plastic explosives... 

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