| 摘要 |
<p>This device relates to devices for pulverizing material being fed through a hopper using pressurized gas. The blasting device (10) has a housing (30) including an intake opening (20) connected to the supply, an output opening (25) connected to the supply and an output opening to the inside of the hopper. A tubular member (40) connected to the output opening (25) defines two compartments (15 and 17). A cap member (50) hermetically seals the top opening defining a third compartment. A diaphragm/valve member in conjunction with a spring biased assembly (81) urge the valve member downward to contact tube (40) which separates compartments (15 and 17), a conduit (83) connects the supply to the third compartment. Several blasting devices may be connected to a common pressurized air supply using a manifold (100).</p> |
