| 摘要 |
<p>A plant for the purification of rinsing water containing sludge from painting processes with different types of lacquer, where the water is treated with chemicals for the separation of the sludge, is provided with a sloping bottom (30) and with vertical, liquid stabilizing slats (34) in the sludge processing vessel (8). In the lowermost part of the bottom there is an outlet (32) where concentrated sludge can be led out to a wet filter plant (2), where the sludge is distributed via branch pipes (40) to a number of filter bags (38). Depending on a control system, valves in the branch pipes (40) can for short periods, e.g. 3 seconds, open for the supply of sludge to each bag (38), and thereafter be closed for a longer period to allow for the seeping through of liquid to a collection tray (42). The water in the tray (42) can be led away for reuse. With the invention, there can easily occur a separation of lacquer particles which, as with known methods, do not rise to the surface in the vessel (8) and are thereafter removed. It is thus possible to process rinsing water which contains different types of lacquer. <IMAGE></p> |
