| 摘要 |
PURPOSE:To maintain the required vacuum in a grinding/cleaning cabinet and to provide grinding/cleaning capability without remarkably increasing the discharge capability of a decompression device by suppressing the amount of compressed air injected from a nozzle into the grinding/cleaning cabinet. CONSTITUTION:A nozzle 2 with a discharge port 3 at its side is fitted in front of the injection direction of a nozzle 1 through which a mixed stream of a ginding/ cleaning agent and compressed air flows from a pressure tank and through a blast hose 4. The grinding/cleaning agent with a larger mass in the mixed stream of the grinding/cleaning agent and the compressed air injected from and accelerated by the nozzle 1 proceeds straight adhead due to an inertia action and is injected through the nozzle 2. On the other hand, the compressed air is divided into two streams, one injection through the nozzle 2 together with the grinding/cleaning agent and the other injected through a discharge port 3 in an arrow direction 6. Accordingly, the vacuum in the device can be maintained to provide the grinding/cleaning capability witout remarkably increasing the discharge capability of a decompression device. |
