Shield Design Procedures PDF Download

The application of suppressive shielding to ammunition manufacturing and other hazardous operations necessitates provision for access to the operation being protected. Personnel must be aole to enter the shield to accomplish routine and emergency maintenance, cleanup and other essential operations. A sufficient opening must also be provided to enable the equipment being protected to be installed or removed in realistically large subassemblies. Openings for conveyors, chutes, motor drives, shafts, etc. must also be provided and properly configured to preclude fragment penetrations from inside the shield. Provisions must be made for all conceivable utilities and environmental conditioning which may be essential to the operations inside the shield. These utility penetrations, ventilating and air conditioning ducts, and vacuum lines must not alter the basic mode of structural failure of the suppressive shield and should be small compared to the general size of the shield. Liners, both interior and exterior to the shield, may be required for certain operations, such as those wherein explosive dust is produced, to preclude contamination of the interior of the shield panels. This report presents the formal documentation of all efforts and the results of a program to acquire and generate the information and data necessary to establish safety approved openings, penetrations, liners, finishes and foundations. Detail design drawings are included as well as substantiating calculations, welding procedures and maintenance procedures for the shields. (Author).