| 摘要 |
The retaining device is comprised of a tank (1) having means (2, 3, 4) its connection to the piping network, means (8, 9) for discharging the particles, preferably with a filter (11), at the bottom part of the tank, channeling means (4) defining in the tank a substantially vertical liquid flowpath which opens out at the bottom of the tank just above the discharge means. An amagnetic column (5) pojects from the top part into said flowpath, and a permanent magnet (6) shaped like a movable bar is placed within the column (5) in such a way that it can be brought from a low position wherein the ferromagntic particles are retained against the column (5) to a high position wherein the ferromagnetic particles are released in order to be discharged in the filter (11). Application for example to the retention and collection of ferromagnetic particles in circuits of nuclear plants. |
