Abstract:
The present invention relates to a closed vessel arrangement (1) comprising a closed vessel (2) for safe destruction of a rocket motor (3) containing a solid propellant (4) by burning the rocket motor (3) inside the closed vessel (2), which closed vessel (2), is adjustable in size to a rocket motor (3). The invention is characterized in that the closed vessel (2) comprises two communicating chambers (7, 8) coaxially arranged to each other, one outer chamber (8) and one inner chamber (7), which chambers (7, 8) are divided into a plurality of connectable sections (13), which sections (13) are connectable in various numbers for adjusting the size of the vessel (2) to rocket motors (3) of various sizes.
Abstract:
The present invention provides a method and apparatus for recycling energetic materials. Energetic materials are intruded into a reaction chamber through a plurality of nozzles positioned at angles on an end plate of a reaction chamber to introduce the energetic materials into the reaction chamber in a cyclonic manner. The energetic materials are combusted in the reaction chamber, and the heat associated with the reaction/combustion is transferred for creating usable power, such as electricity.
Abstract:
An apparatus for the disposal of solid rocket motors which produce exhaustases containing flammable and/or explosive products. The solid rocket motor to be burned is first detachably connected to and inserted in one end of an elongated mixing chamber which has, at an opposite end, a multi-step expansion nozzle. The rocket motor is then ignited and the exhaust gas is passed into the mixing chamber, which is sufficiently large to reduce the velocity of exhaust gases from supersonic to subsonic. Air is injected into the mixing chamber to react with flammable and/or explosive products in the exhaust gases and the resultant mixture is then discharged from the mixing chamber through a multi-step expansion nozzle to expand the gaseous mixture and, at the same time, produce substantial turbulence within the gas mixture which is about six times higher than the turbulence levels produced by a constant area circular nozzle. The expansion nozzle has an inner wall with a stair-step shaped surface, having an aspect ratio of not less than 2 and not greater than 10, to create the increased turbulence levels within the multistep nozzle.
Abstract:
The present invention refers to a process for disposing of materials which are explosive active masses and/or contain them comprising the following steps:feeding the materials to be disposed off in a rotary cylindrical furnace (1), conveying the materials into a reaction zone and simultaneously forming compartments of the materials during conveyance, with the materials being thermally reacted in an oxygen-containing environment and the reaction products being fractionately discharged in the form of solid, liquid and gaseous products.
Abstract:
A method and apparatus for enclosing, controlling and suppressing the explosive destruction of munitions, including cluster-bomb munitions by detonation in an explosion chamber. The apparatus comprises a double-walled steel explosion chamber in which the of the chamber walls and access doors are filled with granular shock damping silica sand. The floor of the chamber is covered with granular shock-damping pea gravel. An array of vent pipes vents the chamber into manifolds leading to a scrubber for further cooling and environmental treatment of the gaseous combustion products. Within the chamber, plastic bags of water are suspended over the detonation. A munition to be destroyed is placed within an open-topped manganese steel fragmentation containment unit, which is then placed within the chamber under a woven steel blast mat secured to the chamber roof. The method of operation for destroying munitions, particularly cluster-bomb munitions, comprises the steps of removing the end closures of the munition, expelling the clustered array of bomblets into a plastic carrier tube, positioning the carrier tube full of bomblets within a separate open-topped steel fragmentation containment unit, placing the fragmentation containment unit within the chamber on the granular bed, suspending plastic bags containing an amount of water chosen according to the type and amount of explosive in the munition, attaching a starter charge and ignition wires to the carrier tube and bomblets, closing the access and vent doors, electrically detonating the explosive, and exhausting the combustion products of the detonation from the chamber through a scrubber.
Abstract:
An installation for the batchwise destruction of noxious materials is described. The noxious material is fed batchwise into a combustion furnace holding a burning coal bed which induces combustion or detonation and also serves as damper for explosion fragments. Burning combustion gases are withdrawn from the upper part of the furnace and conducted while burning to a gas/solid separator. Optionally the burnt out combustion gases are bubbled through water or aqueous solution for the absorption of poisonous gas components and an essentially clean carbon dioxide/air mixture is discharged to the atmosphere.
Abstract:
Destruction of noxious materials. The noxious material is fed batchwise into a combustion furnace holding a burning coal bed which induces combustion or detonation and also serves as damper for explosion fragments. Burning combustion gases are withdrawn from the upper part of the furnace and conducted while burning to a gas/solid separator. Optionally the burnt out combustion gases are bubbled through water or aqueous solution for the absorption of poisonous gas components and an essentially clean carbon dioxide/air mixture is discharged to the atmosphere.
Abstract:
The invention relates to a method of destroying explosive substances in which the explosive substances are converted to a pumpable liquid or suspension which is not detonatable but combustible and which can be burned in conventional boilers intended for energy production. The explosive substance is dissolved or suspended in a combustible liquid which contains no available oxygen or only a small amount of available oxygen, preferably fuel oil, wherein the amount of liquid present is so large as to reduce the energy content of the mixture to 1 MJ/kg or less in the absence of available atmospheric oxygen. The mixture is burned in a combustion apparatus, by delivering the mixture to the combustion apparatus via a liquid fuel burner or a burner for solid fuel/liquid fuel suspensions. The grain size of the explosive substance in suspension is selected so that each grain will be incinerated during its residence time in the flame of the burner concerned.
Abstract:
An explosion device for use in connection with the explosive disposal of poisons, explosives and the like and a method for operating the device are disclosed. The device comprises an explosion chamber which is anchored in a foundation, a lock chamber including an inner door for transferring an explosive mixture from the lock chamber into the explosion chamber and an outer door for removing material from the lock chamber, a compensating device in the explosion chamber to absorb the explosive energy generated by the explosion of an explosive mixture in the explosion chamber, a vacuum system, and means connecting the vacuum system to the lock chamber and to the explosion chamber for establishing a vacuum condition within the lock chamber and within the explosion chamber. The inner door of the lock chamber is operable, in a closed position, to prevent communication between the explosion chamber and the lock chamber. The disclosed method comprises placing an explosive mixture into the lock chamber, evacuating the lock chamber with a vacuum to produce a subatmospheric pressure condition in the lock chamber, transferring the explosive mixture from the lock chamber to the explosion chamber, evacuating the explosive chamber with a vacuum to produce a subatmospheric pressure condition in the explosion chamber, initiating explosive combustion of the explosive mixture in the explosion chamber, evacuating the gaseous reaction products of the explosive combustion from the explosion chamber and removing solid reaction products from the explosive combustion from the explosion chamber through the lock chamber.
Abstract:
A blasting method of blasting an explosive device at least containing an explosive and a chemical agent in a sealed pressure vessel that prevents soot generation during blasting and improves an efficiency of decomposing the chemical agent. First, a transported chemical bomb (explosive) 100 is placed and sealed in a blasting chamber (pressure vessel) 10. The blasting chamber 10 is then brought into a reduced-pressure or vacuum state by aspiration of the air therein by using a vacuum pump 13a and oxygen is supplied through an injection port 12 into the blasting chamber 10 to a pressure of 15 to 30% of atmospheric pressure. The chemical bomb 100 is then blasted, as it is ignited by an ignition device not shown in the Figure.