JP2002310600A - Method and system for treating special shell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for treating a special shell while preventing poison gas from spreading into the atmosphere during work by shielding the digging and treating site and a treating system of a special shell completely with a dome type tent or a pneumatic shield structure. SOLUTION: The digging and treating site of a special shell is shielded with a shield structure 5 and a shell is dug using an unattended shell digging means 18, e.g. a manipulator, disposed in the shield structure and then subjected to unattended treatment by shell treating means 25 and 13 disposed in the shield structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for excavating special shells and the like, completely shielding a processing site and a processing apparatus with a dome-shaped tent or a shielding structure using air pressure so that poisonous gas and the like do not diffuse into the atmosphere during the operation. TECHNICAL FIELD The present invention relates to a special shell processing method and a special shell processing method capable of processing a special shell while performing the above processing.

[0002]

2. Description of the Related Art At present, special shells are buried in the ground and left undisturbed. However, due to secular change, dangerous chemicals loaded in shells etc. leak out, threatening the lives of nearby residents and environmental pollution. And so on. In addition, when manned removal of such ammunition etc. is performed by humans, harmful damage is expected to workers and nearby residents in situations where poisonous gas is leaking, and human injury due to death or aftereffects may occur. Is high.

[0003] On the other hand, a manned removal operation of a special shell or the like requires a great deal of time and money because the excavation of shells and the neutralization and cleaning of the surrounding soil are performed manually.
Furthermore, in Japan after the war, the technology and basic research for carrying out the processing of a large number of special shells have not been made at the Defense Agency, making accurate disposal difficult. Referring to the case studies in other countries, special ammunition and other processing are not carried out locally, but removed ammunition is transported to a specially equipped processing plant where demolition work is carried out. However, in this case, it is necessary to ensure safety during transportation and to manufacture a special transportation vehicle.

[0004]

Accordingly, the present invention shields a work site in an area where a special ammunition is buried with a large airtight shielding structure (for example, a large tent made of a special sheet) which can be easily constructed. In the shielding structure, unmanned excavation of shells using manipulators and the like, processing of toxic gas in shells by unmanned processing equipment disposed in the shielding structure, and dismantling of the shell body, The above-mentioned problem is caused by providing a special shell processing method and a special shell processing method in which processed toxic gas and dismantled material are stored in a safe and sealed pressure vessel for transportation and transported to a specialized chemical processing plant outside the structure. The purpose is to solve. Special ammunition etc. processed according to the present invention, chemical substances transported to a specialized chemical factory are safely chemically decomposed and neutralized by the latest equipment, and furthermore, the crushed munitions after extraction are chemically cleaned,
Iron part bullets are extremely safe because they are recycled as scrap.

[0005]

For this reason, the technical solution adopted by the present invention is a technique for excavating and processing a special ammunition, shielding a processing site with a shielding structure, and using an unmanned manipulator or the like disposed in the shielding structure. A special shell processing method characterized in that shells excavated using shell excavation means are unmannedly processed by shell processing means arranged in the shielding structure. An air purifier having a poison gas neutralizing function is disposed in the shielded building, so that contaminated air in the shielded structure is prevented from being discharged out of the building. . Further, the processing of the shell is a special shell processing method, wherein the shell is frozen. In addition, a shielding structure that shields the site of excavating and processing the special ammunition, a special shell excavating means disposed in the shielding structure, a shell processing unit that processes the excavated special shell, and a processing unit that performs processing by the shell processing unit And a sealed transfer means for transferring and transferring the processed material outside the shielding structure. Further, the special projectile digging means is a special projectile processing device characterized in that it is a wireless manipulator (robot). Further, the shell processing unit is characterized by comprising a freezing unit for freezing the shell, a shell crushing unit for crushing the frozen shell in a frozen state, and a thawing unit for thawing the crushed shell. It is a special shell processing device. The crushing means for crushing the shell is a water-jet crusher, which is a special shell processing device. The freezing means for freezing the shell comprises a liquid nitrogen, and a freezing chamber filled with the liquid nitrogen, which is a special shell processing device. Further, the special shell processing device is characterized in that the shielding structure is provided with an air purifier having a poison gas neutralizing function.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A special shell processing device according to the present invention will be described with reference to the drawings. FIG. 1 is a conceptual view of a shell processing device as an embodiment, and FIG. 2 is a sectional view of a special shell.
In FIG. 1, reference numeral 5 denotes a simple large-sized shield structure capable of covering a special shell processing excavation site and having a size capable of accommodating a special shell processing device and the like, which will be described later. Pneumatic dome structure. An air purifying device 6 for purifying contaminated air in the structure and discharging the air to the outside and a monitoring monitor 7 for monitoring the working status are arranged in the large-sized shielding structure. A communication device 8 and an antenna 9 are connected to the monitoring monitor. Have been.

In the shielding structure 5, there is arranged a shell freezing means (for example, a shell freezing chamber) 25 provided with a manipulator 18 as a special shell excavating means. A liquid nitrogen tank 1 is provided in a shell freezing chamber 25 constituting the shell freezing means.
0, a liquid nitrogen injection device 11 and an automatic transfer device 12 are connected. The automatic transfer device 12 is connected to a cryogenic shell crushing means (for example, a water jet crusher) 13 for crushing a frozen shell 24, and a water jet crusher. Reference numeral 13 is connected to a thawing device 22 via an automatic transfer device.
And the above-mentioned shell freezing means 25, shell crushing means 13,
The decompression means 22 constitutes a shell processing means. Then, the special shell 23 buried by the manipulator 18 is excavated and can be taken into the shell processing means. In addition, the special shell 23 excavated
As shown in FIG. 2, a fuze 1, an ammunition 2, an explosive charge 3, a harmful chemical substance 4, etc. are used. Use something that can be controlled wirelessly while monitoring.

A shell freezing chamber 2 constituting the shell freezing means
A liquid nitrogen tank 10 is connected to 5 via a liquid injection device 11 so that a manipulator 18 can freeze a shell 24 housed in a freezing chamber 24 with liquid nitrogen. Shell 2 frozen in the freezing chamber 25
4 is transferred by an automatic transfer device 12 to a water jet crusher 13 as a shell crushing means, crushed by the crusher 13, and the crushed shell is further defrosted by an automatic transfer means 14 having a heater constituting a thawing means. 22 and is defrosted. The scientific substance and the crushed shells 14 thawed by the thawing device 22 are automatically transferred to the transfer sealed container 15 constituting the closed transfer means in a batch or continuous manner, and when the transfer sealed container becomes full. Is carried out of the building from the door 19 formed in the building,
It is appropriately transported to the processing factory 16 by the transport vehicle 21 and processed.

The processing step for performing the above operation can be covered with a cover or the like as necessary to prevent toxic gas from diffusing into the dome. In addition, not only the manipulator but also the excavating operation of the special ammunition is required. Accordingly, for example, a bipedal walking robot 20 or the like can be used. Further, the processing operation of the above-mentioned shells is performed wirelessly or by wire in accordance with a command from a control device (not shown). However, such software is not a feature of the present invention, and can be appropriately designed according to the device.

The operation of the above-mentioned shell processing device will be described. When processing buried special ammunition, first of all, a manned person will discover the buried place, collect the amount of buried such as ammunition, and collect samples of toxic gas, and also confirm safety such as leakage. After studying the work methods and processes at the site, design the processing equipment. Next, request evacuation of the surrounding residents for a certain period of time. After the evacuation is completed, the entire work site is shielded by a shielding structure (for example, a dome-shaped tent) to seal with the outside air. During the construction of the structure, the upper part of the land where the shells are buried will be covered with a special sheet and the outside air will be introduced.

As described above, a manipulator movable by remote control is installed in a state where the excavation site is shielded by the large shielding structure, and the movement and excavation of shells are made unmanned. The excavated special shell 23 is housed in a shell freezing chamber 25 so that toxic gas in the shell does not vaporize, and liquid nitrogen is injected from a liquid nitrogen tank to completely freeze the shell. The complete freezing process of the shell is performed in a batch mode according to the capacity of the shell freezing chamber 25, but may be performed in a continuous mode.
The frozen special shell 24 is transported by the fully automatic transfer device 12 and disassembled by the water jet crusher 13 in the same plant. Chemical substances in shells and the like are extracted in a frozen state. The extracted chemical substance is stored in a thawing device 22 with a heater by an automatic transfer device and thawed. These liquefied chemical substances and crushed shells are stored in a safe and sealed pressure vessel 15 for transportation, and are passed through a door 19 of the shielding structure to a specialized chemical processing plant 16 outside the building.
Transported to Chemical substances transported to the specialized chemical factory 16 are safely decomposed and neutralized by the latest equipment.
In addition, the crushed shells after the removal are chemically cleaned and the iron partial shells are regenerated as scrap, and the special shells remove the fuze and remove the explosive.

[0012] In these operations, plant management is fully automated in terms of maintenance and inspection of the operations, and the operations are carried out by remote manned operation instructions.
As described above, according to this special shell processing device, since work is performed in a completely uninhabited shielding structure with the outside air completely shut off, even if an accident should occur during the work, an air cleaner etc. It is possible to cope with neutralization treatment by unmanned use, and the safety is extremely high. In addition, all of these work conditions are remotely inspected by a monitoring monitor and transmitted to a work commander in a safety zone behind the vehicle via a communication device antenna.

The embodiment of the present invention has been described above. Excavation of a special shell, a shielding structure for shielding a processing site, a special shell excavating means disposed in the shielding structure, a shell processing means, Sealed transfer means for transporting and transferring shells outside the shielding structure are not limited to the above examples,
Of course, other devices or the like that can achieve the same function can be used. For example, the ammunition freezing means and the ammunition processing means are not necessarily limited to liquid nitrogen, a water jet type or the like, and it is a matter of course that other means can be adopted. Furthermore, the present invention is not limited to the above embodiments, and the present invention can be implemented in any other form without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all aspects and should not be interpreted in a limited manner.

[0014]

As described in detail above, according to the present invention, it is possible to safely and promptly carry out processing of a buried shell loaded with toxic gas and bacteria and removal of toxic substances. In addition, the introduction of state-of-the-art robot technology that has already been put into practical use, such as cleaning of contaminated areas and processing of special ammunition, enables safe, quick and low-cost work. If the area is full of harmful gases or chemical substances are leaking and inaccessible to humans,
It is possible to perform work remotely from unattended. It can protect the environment around the buried special ammunition and protect the lives of the local residents, and can have excellent effects such as preventing the development of international problems due to accidents and the like.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a shell processing device as an embodiment.

FIG. 2 is a sectional view of a special shell.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fuze 2 Ammunition 3 Explosives 4 Hazardous chemicals 5 Shielding structure 6 Air purifying device 7 Monitoring monitor 8 Communication device 9 Antenna 10 Liquid nitrogen tank 11 Liquid nitrogen injection device 12 Automatic transfer device 13 Freezing shell crushing means 16 Processing factory 18 Manipulator 19 Door 21 Dedicated carrier 22 Thawing means 23 Cannonball 24 Freezing cannonball 25 Cannonball freezing chamber

Claims (9)

[Claims] An excavation and processing site for a special ammunition is shielded by a shielding structure, and a shell or the like excavated by using an unmanned shell excavating means such as a manipulator disposed in the shielding structure is used as the shielding structure. A special shell processing method characterized in that processing is carried out unattended by shell processing means disposed inside. 2. An air purifier having a poison gas neutralizing function is provided in said shielded building to prevent contaminated air in the shielded structure from being discharged out of the building.
Special shell processing method described in. 3. The method for processing a special shell according to claim 1, wherein the processing of the shell is performed while the shell is frozen. 4. A shielding structure for shielding a site for excavating and processing a special ammunition, a special shell excavating means disposed in the shielding structure, and a shell processing means for processing the excavated special shell.
A special ammunition processing device, comprising: hermetic transfer means for carrying and transferring the processed material processed by the ammunition processing means to outside the shielding structure. 5. The special shell excavating means is a wireless manipulator (robot).
A special shell processing device according to item 1. 6. The ammunition processing means includes a freezing means for freezing the ammunition, a crushing means for crushing the frozen ammunition in a frozen state, and a thawing means for thawing the crushed ammunition. The special shell processing device according to claim 4 or 5, characterized in that: 7. The special shell processing device according to claim 6, wherein the crushing means for crushing the shell is a water jet crusher. 8. A special device according to claim 4, wherein said freezing means for freezing said shell comprises liquid nitrogen and a freezing chamber filled with said liquid nitrogen. Shell processing equipment. 9. The special shell processing apparatus according to claim 4, wherein said shielding structure is provided with an air purifier having a poison gas neutralizing function.