Abstract:
"Processo de prensagem de elementos de retardo para iniciadores não elétricos" refere-se a patente de aperfeiçoamentos introduzidos em processo de prensagem de elementos de retardo aplicados em iniciadores não elétricos de explosivos em geral e acessórios para explosão em particular, produzidos para proporcionar o tempo de queima (tempo de retardo) preciso para a continuidade do trem de explosão conforme programado pela engenharia de detonação, processo otimizado que obtém homogeneidade e regularidade de densidade aparente do material comprimido, trazendo vantagens de diminuição de variabilidade do tempo de queima, maior repetibilidade e precisão da dosagem das misturas de retardo e menor variação na altura.
Abstract:
This invention relates to a blasting cartridge, a method of producing the cartridge and an emulsion explosives composition. A blasting cartridge according to the invention comprises a tubular sleeve of plastics film containing an emulsion explosives composition. The ends of the cartridge are only crimped, but preferably left open. The rheology of the explosive composition is modified so that it is sufficiently viscous to be contained within the sleeve (i.e. it does not exude from the crimped or open ends of the sleeve) during normal packaging and transport so that the ends thereof do not need to be closed by way of clipping or knotting.
Abstract:
There is disclosed an anti-static, non-sparking coating that can be applied to various components such that the components may be safely used in explosive environments.
Abstract:
Appareil et procédé d'émulsification de fluides. Le mélange de fluides peut se faire soit avant que les fluides n'entrent dans l'appareil (100), soit dans l'appareil. Une pression extrêmement basse est créée et maintenue dans une chambre de l'appareil en augmentant la vitesse de l'écoulement d'au moins un fluide en faisant passer l'écoulement d'un passage de plus grand diamètre (110) vers un passage de plus petit diamètre (106). Des vapeurs des fluides à émulsifier se mélangent dans le passage de basse pression, lequel peut être un tube venturi. Lorsque les vapeurs mélangées passent du passage de plus petit diamètre vers un second passage de sortie de plus grand diamètre (114), la décélération se traduit par une augmentation de pression qui provoque l'affaissement des vapeurs mélangées dans les produits émulsifiés. Une seule émulsification dans l'appareil produit des particules émulsifiées ayant des diamètres de l'ordre de 0,01 à 2 microns. L'appareil peut effectuer l'homogénéisation du lait, l'émulsification d'un combustible et de l'eau, l'émulsification de solutions avec des fluides immiscibles et la production d'autres émulsions régulières ou thixotropiques.
Abstract:
A method of tracking at least part of the life cycle of a hazardous goods item (204) is disclosed. The method comprises providing a data storage device (22) arranged to store a plurality of records, each record being associated with a hazardous goods item (204) and being arranged to store data indicative of at least part of the life cycle of the hazardous goods item. The method also comprises facilitating receipt on-line of life cycle data indicative of at least part of the life cycle of a hazardous goods item from multiple distributed data gathering devices (28), and populating the record associated with an item with life cycle data when life cycle data indicative of at least part of the life cycle of the item is received from any of the distributed data gathering devices (28). A data repository used in the method and a corresponding system for tracking dangerous goods items is also disclosed.
Abstract:
Applicants have discovered that electrostatic discharge (ESD) may, in some circumstances, result in current densities sufficient to ignite unprotected reactive composite materials. They have further discovered that a reactive composite material (RCM) can be protected from ESD ignition without adversely affecting the desirable properties of the RCM by the application of conducting and/or insulating materials at appropriate locations on the RCM. Thus ESD-protected RCM structures can be designed for such sensitive applications as ignition of propellants, generation of light bursts, and structural materials for equipment that may require controlled self-destruction.
Abstract:
A method for loading and sensitising a slurry explosive in a borehole or in a cartridge, where a gassing agent is added as a thin string inside the slurry explosive after the explosive has been pumped into a loading pipe, and wherein the slurry explosive and a gassing agent are mixed at the end of the loading pipe and sensitised in the borehole or the cartridge. Optionally the loading pipe is lubricated with water or a water solution to reduce the pump pressure.
Abstract:
The present invention relates to method and equipment for cooling hot explosive charges (5) of cylindrical form packaged in paper or plastic cartridges, to ambient temperatures by means of air or possibly also water. The hot charges (5) are supplied to a continuous vertical tooth belt (6) with cartridge carriers (13). The tooth belt (6) is twisted to horizontal position (7) before it enters a cooler (8) where the cartridges (5) are exposed to cooling air supplied to the cooler (8) at ambient temperature and subsequent to the cooling operation the belt (6) is twisted to vertical position (a) before the upper ends of the cartridges are closed. The equipment comprises a continuous tooth belt (6) having cartridge carrier means (13) mounted thereon for filled cartridges (5). The belt (6) runs through an air cooler (8) and is twistable from vertical to horizontal position (7) and further back to vertical position (9) upon leaving the cooler (8) which has an adjustable depth corresponding to the length of the cartridges (5) and means for guiding the belt (6) whereby its length inside the cooler (8) is substantially larger than the length of the cooler (8).
Abstract:
A method for treating cellulosic biomass feed stock including: feeding the feed stock to an upper inlet of a vertical reactor vessel, wherein the feed stock is deposited on a pile of feed stock within the vertical reactor vessel; adding heat energy to heat the feed stock by injecting steam to an upper region of the vertical reactor vessel; propelling the feed stock through an outlet in a lower region of the vertical reactor vessel by injecting steam into the biomass at, near or after the bottom outlet of the vertical reactor vessel, and moving the propelled feed stock through an expansion device, such as a steam explosion device, to subject the feed stock to a steam explosion process.