Assessment of Processing Gelled GB M55 Rockets at Anniston by National Research Council, Division on Engineering and

By National Research Council, Division on Engineering and Physical Sciences, Board on Army Science and Technology, Committee on Review of Army Planning for the Disposal of M55 Rockets at the Anniston Chemical Agent Disposal Facility

In 1985, Congress mandated the destruction of the stockpile of M55 rockets saved at a number of chemical guns garage websites within the usa and its possessions as a result of hazard that the rockets may perhaps self-ignite. hazard exams played through the military point out the danger to the general public is ruled by means of M55 rockets containing the nerve agent sarin (GB). in the course of the disposal of those GB M55 rockets at a domain in Tooele, Utah, it used to be stumbled on that the agent had gelled in an important percent of the rockets. In those situations, the normal destruction approach wouldn't paintings. the military devised an alternative mechanism for incinerating the gelled rockets, however the kingdom of Utah constrained their disposal fee utilizing this procedure. the military, even if, has due to the fact built plans for expanding the destruction price of gelled rockets and proposes that this technique be used at Anniston Chemical Agent Disposal Facility (ANCDF) in Anniston, Alabama. to aid during this attempt, the military requested the nationwide learn Council (NRC) to guage the Army's plan for larger destruction premiums. Former Congressman Robert Riley (now Alabama's governor) additionally asked an NRC review. This research was once conducted through the NRC advert hoc Committee on evaluation of military making plans for the Disposal of M55 Rockets on the Anniston Chemical Agent Disposal Facility.

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Additional info for Assessment of Processing Gelled GB M55 Rockets at Anniston

Sample text

5 in. to 2 in. for TOCDF and facilities at other sites. • The DFS kiln flange bolts failed. The DFS kiln is constructed in five sections that are bolted together to form a single continuous shell. During the GB M55 rocket testing, the bolts holding the kiln sections failed on three occasions. The failures of kiln bolts accounted for 120 hours (or 18 percent) of DFS downtime, the second largest contributor to total downtime. The DFS kiln bolts were replaced with bolts of improved design and different materials of construction.

The result is that these munitions generally have significantly higher leakage rates than other munitions in the stockpile. M55 rockets are packed in fiberglass storage tubes, 15 to a bundle, which are stacked on pallets in storage igloos. The concern that accidental ignition of a single stored rocket might trigger a large conflagration and a release of agent was the main reason for congressional authorization for the Chemical Stockpile Disposal Program (CSDP) in 1985, as noted earlier (NRC, 1994a).

S. Army, 1993). Water sprays in the gas exhaust piping and the feed chute prevent excessive temperatures. The DFS kiln has an outer shroud through which the combustion air is drawn to lower the temperature of the kiln shell. 2 This conveyer lifts the residues to another chute, from which they drop through gates into a residue collection bin. Drums of cooled residue decontaminated to a 5X condition are shipped off-site. Exhaust gas from the DFS kiln goes first to a blast attenuation duct, then to a cyclone in which larger particulates are separated from the gas stream, and then to an afterburner operating at 2200°F for a residence time of at least 2 s.

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