摘要:
An object of the present invention is to improve durability of a pressure vessel for blasting an article to be treated such as hazardous substance or explosive therein. The pressure vessel 10, means for achieving the object, has an external vessel 31 and an internal vessel 32 installed in the external vessel 31. The external vessel 31 has a strength for retaining pressure caused by blasting the article. The internal vessel 32 receives fragments of the treated article 100 to protect the external vessel 31 against the fragments. The internal vessel 32 preferably covers almost entire internal surface of the external vessel 31.
摘要:
Provided is a blast treatment method with which the object to be treated can be treated more reliably and efficiently. This method includes: a step wherein an explosive is detonated inside a pressure vessel (30) comprising an elasto-plastic metal, thereby imparting to the pressure vessel (30) an initial load wherein the primary + secondary stress generated in at least a portion of the structural parts of the pressure vessel becomes a stress that is included in a plastic region exceeding the elastic region, thereby generating a shakedown state in the pressure vessel (30); and a subsequent step wherein a treatment explosive (50) is detonated within the pressure vessel (30), thereby blasting the object (10) to be treated.
摘要:
Provided are a salvage container and a salvaging method capable of salvaging ammunition dumped into the sea using a simple configuration while more reliably suppressing the leakage of a chemical agent from the ammunition. A salvage container includes: a container body (30); a lid (40) that blocks an opening portion of the container body (30); a gasket (70) that is formed of a compressively deformable member and that blocks a gap between an inner side surface (33) of the container body (30) and the lid (40) from the outer side in a specific direction; and a gasket presser (50) that clamps the gasket (70) between the gasket presser (50) and the lid (40). The container body (30) includes: a lid holder (33b) that holds the lid (40) so that the lid (40) is displaced toward the outer side in the specific direction in relation to the container body (30); and a gasket presser holder (34b) that holds the gasket presser (50) so that the lid (40) is displaced toward the outer side in the specific direction in relation to the gasket presser (50) according to a decrease in the hydraulic pressure. The gasket (70) is compressively deformed by the relative displacement of the lid (40) so that the gap between the inner side surface (33) of the container body (30) and the lid (40) is hermetically sealed.
摘要:
A blasting treatment method for treating, by blasting, an explosive having a powder and a chemical agent in a closed pressure vessel capable of preventing soot from occurring in the blasting treatment and increasing the decomposing efficiency of the chemical agent. First, a carried chemical bomb (explosive) (100) is put in blasting chamber (pressure vessel) and sealed. Next, after air is exhausted from the blasting chamber (10) by using a vacuum pump (13a) to bring the inside of the chamber into a vacuum state, oxygen corresponding to 15 to 30 vol.% of the oxygen contained in the atmosphere is fed from a filler (12) into the blasting chamber (10). Then, the chemical bomb (100) is ignited by an unshown ignition device for the blasting treatment.
摘要:
Provided are 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 of the invention includes: a blasting preparation step of housing a blasting explosive 30 having fluidity in a container 20 and placing the blasting explosive 30 around a treatment subject 10 as well as attaching a initiation device 50 to the container 10; a housing step of housing the container 20, the blasting explosive 30, and the treatment subject 10 in a chamber 60; a decompression step of decompressing the inside of the chamber 60; and a blasting step of initiating the blasting explosive 30 and blasting the treatment subject 10 with the blasting explosive 30. In the decompression step, the inside of the chamber 60 is decompressed while a gas vent portion 26 regulates the escape of the blasting explosive 30 to the outside of the container 20 and permits the escape of gases in the container 20 to the outside.
摘要:
A blasting treating method for blast-treating harmful substances and blasting substances in a pressure-resistant vessel capable of increasing treatment efficiency while suppressing an increase in the size of the pressure-resistant vessel. The method comprises an installation step for installing a plurality of treated matters in the pressure-resistant vessel (10) at prescribed intervals, an initial blasting step for blasting one treated matter, and subsequent blasting steps for blasting the other treated matters adjacent to the previously blasted treated matters after a prescribed time is passed from the time point of the blasting. The blasted matters are blasted in order through the initial blasting step and the subsequent blasting steps.