Abstract: Provided is a method for cleaning the inside of a pressure tight container for a blasting treatment, wherein the inside of a pressure tight container can be cleaned for a short period of time after a blasting treatment.

Abstract: A blast treatment method capable of performing blast treatment of a treatment subject with a simple structure, with high efficiency, and at low cost, while inhibiting scattering of harmful substances or the like to the outside. The method includes: inside disposing an inside explosive for blasting a treatment subject around the treatment subject; disposing an outside explosive having a detonation velocity greater than that of the inside explosive at a position outside the inside explosive; and detonating the outside explosive using an initiation device, and initiating the inside explosive by detonation of the outside explosive, thereby performing blast treatment of the treatment subject by initiation of the inside explosive.

Abstract: Provided is a blast treatment method that enables blast treatment of a treatment subject in a sealed container to be carried out easily and safely. This blast treatment method implements: a shaped charge placement step of placing a shaped charge 70 at a location outside a sealed container 40; a blasting explosive placement step of placing a blasting explosive 20 for blasting a treatment subject 10 at a location outside the sealed container 40; a housing step of housing the sealed container 40 in which the treatment subject 10 is housed in a sealable chamber 90; a dividing step of initiating the shaped charge 70 and dividing the sealed container 40 at prescribed dividing surfaces 40a and 40b with the initiated shaped charge 70 to expose the treatment subject 10; and a blasting step of blast-treating the exposed treatment subject 10 with the blast energy of the blasting explosive 20 by initiating the blasting explosive 20 in the sealed chamber 90.

Abstract: Provided is a method of cleaning the inside of a pressure vessel for blasting to enable a short-time treatment regardless of the state of residual substances. This method includes: a step of setting an explosive for cleaning, different from an explosive for blasting, in an amount necessary for decomposing a residue of the object inside of a pressure vessel after a blasting step of setting and blasting the object and the explosive for blasting in the pressure vessel; and a step of decomposing the residue by exploding the explosive for cleaning in the pressure vessel.

Abstract: A blast treatment method for blasting a treatment subject having an outer shell and a chemical agent charged into an interior of the outer shell includes the steps of: disposing an explosive on the outer side of the outer shell such that a difference occurs in a detonation pressure of the explosive, that acts on the outer shell from an outer side, between one side and another side of a predetermined cutting position of the outer shell and the outer shell is cut by a shearing force generated as a result of the difference in the detonation pressure; and detonating the explosive, wherein, in the step of detonating the explosive, the chemical agent is exposed by cutting the outer shell in the cutting position through detonation of the explosive, and the chemical agent is decomposed using the detonation.

Abstract: A blast treatment method enables easy and safe blast treatment of ammunition having propellant provided with a warhead having a bursting charge and a propulsion unit having a propellant.

Abstract: A blast treatment method and an apparatus, which can perform the blast treatment of a treatment subject by using and securely initiating a blasting explosive having fluidity. The blast treatment method includes: a blasting preparation operation of housing a blasting explosive having fluidity in a container and placing the blasting explosive around a treatment subject as well as attaching an initiation device to the container; a housing operation of housing the container, the blasting explosive, and the treatment subject in a chamber; a decompression operation of decompressing the inside of the chamber; and a blasting operation of initiating the blasting explosive and blasting the treatment subject with the blasting explosive. In the decompression operation, the inside of the chamber is decompressed while a gas vent portion regulates the escape of the blasting explosive to the outside of the container and permits the escape of gases in the container to the outside.

Abstract: A blast treatment method for blasting a treatment subject having an outer shell and a chemical agent charged into an interior of the outer shell includes the steps of: disposing an explosive to cover a periphery of the treatment subject; and detonating the explosive from respective end portions of a specific direction toward a predetermined cutting position of the treatment subject between the respective end portions so that detonation waves of the explosive advancing from respective sides of the cutting position collide in the cutting position, wherein, in the step of detonating the explosive, the chemical agent is exposed by cutting the outer shell in the cutting position through detonation of the explosive, and the chemical agent is decomposed using the detonation.

Abstract: Provided is a blast treatment method that can be implemented simply and efficiently blast a treatment subject while preventing fragments of the subject from scattering outward.

Abstract: Provided is a method for cleaning the inside of a pressure tight container for a blasting treatment, wherein the inside of a pressure tight container can be cleaned for a short period of time after a blasting treatment.

Abstract: Provided is a blast treatment method that can be implemented simply and efficiently blast a treatment subject while preventing fragments of the subject from scattering outward.

Abstract: It is intended to provide a pressure container which can prevent dispersion of a hazardous substance or the like to the exterior and ensure a high level of safety with a simple structure. To achieve this object, a pressure container (10) comprises an outer vessel (30) and an inner vessel (40) which receives an impact load produced at the time of blasting disposal operation. The inner vessel (40) is disposed inside the outer vessel (30). The inner vessel (40) has a pressure relieving part (50) which can discharge part of high-pressure gas produced in the inner vessel (40) at the time of the blasting disposal operation into a gap formed between the inner vessel (40) and the outer vessel (30).

Abstract: The object is to rapidly clean-up an off-gas generated by blasting in a pressure vessel to such a level as to permit the exhaust of the off-gas. An object to be blasted is blasted in a pressure vessel to generate an off-gas, which is introduced into a combustion furnace to burning a combustible component contained in the off-gas. The off-gas after the burning in a reservoir section is stored in the reservoir section, and exhausted out of the reservoir section if a component contained in the off-gas complies a predetermined emission requirement, otherwise returned to at least one of the pressure vessel and the combustion furnace to be re-treated if the component does not comply the emission requirement.

Abstract: A blast treatment method for blasting a treatment subject having an outer shell and a chemical agent charged into an interior of the outer shell includes the steps of: disposing an explosive on the outer side of the outer shell such that a difference occurs in a detonation pressure of the explosive, that acts on the outer shell from an outer side, between one side and another side of a predetermined cutting position of the outer shell and the outer shell is cut by a shearing force generated as a result of the difference in the detonation pressure; and detonating the explosive, wherein, in the step of detonating the explosive, the chemical agent is exposed by cutting the outer shell in the cutting position through detonation of the explosive, and the chemical agent is decomposed using the detonation.

Abstract: A blast treatment method capable of performing blast treatment of a treatment subject with a simple structure, with high efficiency, and at low cost, while inhibiting scattering of harmful substances or the like to the outside. The method includes: inside disposing an inside explosive for blasting a treatment subject around the treatment subject; disposing an outside explosive having a detonation velocity greater than that of the inside explosive at a position outside the inside explosive; and detonating the outside explosive using an initiation device, and initiating the inside explosive by detonation of the outside explosive, thereby performing blast treatment of the treatment subject by initiation of the inside explosive.

Abstract: A blast treatment method and an apparatus, which can perform the blast treatment of a treatment subject by using and securely initiating a blasting explosive having fluidity. The blast treatment method includes: a blasting preparation operation of housing a blasting explosive having fluidity in a container and placing the blasting explosive around a treatment subject as well as attaching an initiation device to the container; a housing operation of housing the container, the blasting explosive, and the treatment subject in a chamber; a decompression operation of decompressing the inside of the chamber; and a blasting operation of initiating the blasting explosive and blasting the treatment subject with the blasting explosive. In the decompression operation, the inside of the chamber is decompressed while a gas vent portion regulates the escape of the blasting explosive to the outside of the container and permits the escape of gases in the container to the outside.

Abstract: Provided is a blast treatment method that enables blast treatment of a treatment subject in a sealed container to be carried out easily and safely. This blast treatment method implements: a shaped charge placement step of placing a shaped charge 70 at a location outside a sealed container 40; a blasting explosive placement step of placing a blasting explosive 20 for blasting a treatment subject 10 at a location outside the sealed container 40; a housing step of housing the sealed container 40 in which the treatment subject 10 is housed in a sealable chamber 90; a dividing step of initiating the shaped charge 70 and dividing the sealed container 40 at prescribed dividing surfaces 40a and 40b with the initiated shaped charge 70 to expose the treatment subject 10; and a blasting step of blast-treating the exposed treatment subject 10 with the blast energy of the blasting explosive 20 by initiating the blasting explosive 20 in the sealed chamber 90.

Abstract: A blast treatment method for blasting a treatment subject having an outer shell and a chemical agent charged into an interior of the outer shell includes the steps of: disposing an explosive to cover a periphery of the treatment subject; and detonating the explosive from respective end portions of a specific direction toward a predetermined cutting position of the treatment subject between the respective end portions so that detonation waves of the explosive advancing from respective sides of the cutting position collide in the cutting position, wherein, in the step of detonating the explosive, the chemical agent is exposed by cutting the outer shell in the cutting position through detonation of the explosive, and the chemical agent is decomposed using the detonation.

Abstract: A blast treatment method enables easy and safe blast treatment of ammunition having propellant provided with a warhead having a bursting charge and a propulsion unit having a propellant.

Abstract: The present invention aims at estimating a residual life of a blasting vessel. For the estimation, a strain gauge 30 is attached to a blasting vessel 10. The strain gauge 30 measures high-frequency repetitive strain caused in the blasting chamber 10 in each explosion. Strain waveform data obtained with the strain gauge 30 is analyzed to calculate the cumulative degree of fatigue damage due to a high-frequency repetitive load applied to the blasting vessel 10 in each explosion. A residual life of the blasting vessel 10 is estimated on the basis of a cumulative value of the cumulative degrees of fatigue damage.