Process for the low-pollution operation of an explosion device a

Details Process for the low-pollution operation of an explosion device a Process for the low-pollution operation of an explosion device a

1994-05-06

1995-05-30

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Applying explosive force to make article

294212, 72 56, 264101, 425 1, 588202, B29C 3310

Patent

active

054198623

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

This invention relates to methods for operating an explosion device for explosively forming workpieces and for the explosive disposal of explosives, poisons and the like. More specifically, the invention relates to method for operating such a device with low pollution and to an explosion device, including at least one explosion chamber, for practicing the method.


BACKGROUND OF THE INVENTION

It is known from the prior art (DE-OS 2 645 347) that explosives can be prepared outside the explosion chamber prior to introduction into the chamber and that such prepared explosives can then be introduced into the explosion chamber by opening said chamber and to carry out the explosion in a negative pressure environment and, after detonation, to remove the reaction products or any processed workpieces by again completely opening the explosion chamber.
The detailed procedure of introducing the explosives into the explosion chamber and removing the reaction products is saddled with the disadvantage that, during the initial preparation of the explosives for the explosion process, harmful noxious components can be released to the environment. In addition, toxic components generated during the combustion process can be released to the environment during opening of the explosion chamber. Furthermore, prior to opening the explosion chamber, extended time periods have to be allowed for to clean the interior of the explosion chamber.


SUMMARY OF THE INVENTION

Unlike the prior art explosive combustion processes, in which pollutants enter the environment both during the preparation of the explosive for explosive treatment and on opening of the explosion chamber, with the process of the invention, such pollutants arc kept away from the environment. In addition, filling of the explosion chamber with explosive is rationalized in time. In this explosion device the explosion chamber (1) co-operates with a lock chamber (7) and a preparation chamber (20). In the process the raw materials for the explosive are, for example, first introduced into the preparation chamber (20) where the final explosive mixture is made and then taken through the lock chamber (7) into the explosive chamber (1) which is constantly kept at a negative pressure. Any end products and carrier materials in solid form are then removed from the explosion chamber (1) via a similar lock system. The process is suitable for the explosive disposal of explosives and poisons and for the explosive production of workpieces.
The subject of the invention consists of a process for the low-pollution operation of an explosion device which features at least one explosion chamber, said device being specifically suitable for the explosive disposal of explosives and poisons and for the explosive forming of workpieces, where explosives are introduced into the explosion chamber by means of a lock chamber, and where a negative pressure is produced in the explosion chamber, and where the explosives are subsequently transformed into predominantly gaseous combustion products by explosive combustion, and where these combustion products are finally removed from the explosive chamber.
The invention furthermore concerns an explosion device to implement this process, where at least one explosion chamber is anchored in a foundation, and where said explosion chamber is equipped with entry and removal facilities, with compensating devices to absorb the explosive energy in the explosion chamber wall, and where said explosion chamber is connected to a vacuum system.
In contrast, it is the objective of the present invention to elaborate a procedure and an explosion device of the type described above, where, first of all, the toxic materials arising during preparation of the explosives and those generated by the explosion, are being kept away from the environment, and where, additionally, the charging of the explosion chamber with explosives can be carried out in a more rational manner with respect to time.
According to the instant invention, these objectives are achieved f

REFERENCES:
patent: 3464249 (1969-09-01), Klein
patent: 3611766 (1971-10-01), Klein et al.
Navy Technical Disclosure Bulletin, vol. 2, No. 6 (Jun. 1977).

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