Explosion remote controls

If there are conditions where combustion can lead to explosion, there should be remote controls for valves and equipment. During normal operation, manual controls on equipment may not be hazardous, but if there is a danger of explosion, remote controls will avoid the need for operators to enter dangerous areas. 

The next step is to apply a number of loss control credit factors such as process control (emergency power, cooling, explosion control, emergency shutdown, computer control, inert gas, operating procedures, reactive chemical reviews), material isolation (remote control valves, blowdown, drainage, interlocks) and fire protection (leak detection, buried tanks, fire water supply, sprinkler systems, water curtains, foam, cable protection). The credit factors are combined and appHed to the fire and explosion index value to result in a net index. 

High pressure autoclaves may be used fitted with remote control behind safety barricades, which are necessary beeause of the danger of explosions. In a typical process the autoclave is half-filled with alcohol containing 15%... 

It is strongly recommended that our procedure1 not be used to prepare guanidine nitrate. Mixtures of ammonium nitrate and organic materials not much different from the mixture in the procedure are now used extensively as commercial explosives. The aqueous mixture of Note 101 is similar to some aqueous mixtures used in sizable quantities for rock blasting a confined mixture of this sort is especially hazardous. Only a few laboratories devoted to explosives research have the barricades and remote control devices needed to run this preparation of guanidine nitrate without risk. 

Ventilation System Blast Protection. The explosive containment rooms have the highest potential contamination level in the process facility. The punching and shearing that are part of the remote controlled disassembly operation result in the release of... 

Whenever the operation to be performed involves the potential to cause the initiation of the propellant, explosive or pyrotechnic (PEP) component(s) of a munition item, the APE is either operated by remote control, with the operator behind a protection wall or barrier, or it is enclosed in a protective barricade or operational shield. Barricades or operational shields are designed to protect personnel and assets from the effects of blast overpressures, thermal effects or fireball, and fragments result from the initiation of PEP components, such as the fuze, primer, propelling charge, burster, etc. 

Mine. An enclosed explosive or chemical charge designed to be placed in position so that it detonates when its target touches or moves near it, or when touched by remote control. General types are Land Mine and Underwater Mine. The term mine may also mean an explosive charge placed in a subterranean tunnel under a fortification (Ref 40a, pp 99 142)... 

Graphite-filled PVC provides resilient coatings which can leak off dangerous electrostatic charges from explosives propellants (Ref 3) Remote control sites for handling explosives capable of withstanding detonations of up to 10 lbs TNT are described (Ref 4)... 

Safety is an important aspect in maching explosives. Since the sensitivity of an expl has meaning only in terms of the specific initiating impulse, the practice of machining each expl material by remote control is most desirable (Ref 2). On the basis of test data it is considered safe to machine Composition A-3, Composition B, and TNT at 200 ft/min surface speed... 

DE) A.A- Menegus, Ordn 49, 86—8(1964) (Explosives, Testing by TV). Closed circuit TV is used at Pica tinny Arsenal to observe laboratory. prepn of new expls, mechanical shaping of solid expls, field testing of ordnance items, recovery and disposal of misfires, etc. By remote control the camera lenses may be directionally oriented, especially in conjunction with operation of remote control slave devices and vehicles... 

Dry Method. When Hg fulminate is sifted dry, the operation shall be performed in a location safely removed and/or shielded from other explosives, personnel or material which should be harmed by explosions. The motor of the shaking machine shall be started and stopped by a remote control switch. Assemble a No 100 sieve on a No 200 sieve and fit them on a pan. The sieves must be fitted with rubber gaskets. Place a 5g sample of dry fulminate on ihe upper sieve and shake the sieve for 3 mins on a Tyler Ro-Tap (or equal) machine. Carefully brush the material retained on the upper sieve into a weighing pan and weigh. Calculate the wt as % retained on the No 100 sieve. Brush the material passing thru the... 

In the TOCDF system, feed materials are separated inside a building with areas capable of withstanding explosions. The pressure in these and other areas where agent may be present is controlled to be lower than the ambient atmospheric pressure to prevent leakage from the building to the outside atmosphere. Two methods are used to remove agents from munitions and containers via remote control. Most containers are simply mechanically punched and drained. Projectiles, however, are not punched following separation from associated... 

Recently, the topic of improvised explosive devices (IEDs) has garnered a lot of attention. IEDs may take the form of roadside bombs, suicide bombers, or vehicle-borne bombs. Roadside bombs share some detection issues with land mines, and in principle, the NQR land mine detectors discussed in the previous section can be used to detect roadside IEDs. However, many IEDs are remotely controlled, and the short standoff distance available with NQR makes IED detection dangerous for the NQR operator. The personnel screening devices already discussed in Section 5.2.3. are applicable to the suicide bomber. 

Case bonded -> Composite Propellants are unloaded from their casing by a remote controlled lathe or water gun also - Case Bonding Also -> Destruction of Explosive Materials... 

Only in the field of data transmission, communications, remote controlling and monitoring, has the very small energy amount, when switching electric circuits, formed a very useful basis for a special type of explosion protection, the so-called intrinsic safety as given in IEC 60079-11 and EN 50020. 

A powder is generally used in pressing, which is mainly undertaken under vacuum. The advantage in comparison with the melt process is the low temperature. However, this process is also more hazardous which is why it is always automated or remote controlled. The subsequent mechanical processing of the finished explosive block is also relatively dangerous and should always be carried out using remote-control. 

Caution The well-documented explosive properties of lead azide demand appropriate safety precautions, including the use of remote controlled equipment and adequate shielding. The lead azide is destroyed by dissolution in 50% aq NaOH. 

Einsteinium (Z = 99) and fermium (Z = 100) were identified in 1952 and 1953, respectively, by Ghiorso and others in the radioactive debris of the first thermonuclear explosion. Hints of the formation of these elements were found in dust samples from the remotely controlled aircrafts used in this test. Then, the elements were isolated by processing larger amounts of the radioactive coral material from the test site and named in honour of Einstein and Feimi. The elements had been formed by multineutron capture,... 

No fundamental progress on methods of the manufacture of NG can be recorded. The main efforts have been concentrated on the problem of increasing the safety of the processes by using perfect automation with remote control devices, avoiding immediate contact between personnel and dangerous parts of the process and the reduction of the quantity of explosive in the working place. All these requirements can be achieved with continuous methods, allhougfi batch processes are still in use. 

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