PROCESS FOR ELIMINATING SOLID PARTICLES OF POLLUTANTS FROM COOLING WATER FOR POWER STATION AND SIMILAR

摘要

PCT No. PCT/EP86/00664 Sec. 371 Date Aug. 11, 1987 Sec. 102(e) Date Aug. 11, 1987 PCT Filed Nov. 17, 1986 PCT Pub. No. WO87/03505 PCT Pub. Date Jun. 18, 1987.An apparatus for removing solid particles from cooling water having a tubular housing (1), a funnel-shaped trap sieve (4) attached to the inner housing wall with the tip facing in the flow direction, and a pressurized water sprayer (11). The sprayer includes a washer arm (14), concentrally rotatable about the downstream side (23) of trap sieve (4), and having at least one slit nozzle (15) directed toward the downstream surface (23). A suction tube (8) extends into a collecting chamber (10) of trap sieve (4). To prevent large particles from jamming rotating components, trap sieve (4) is cleaned by spraying water only against the downstream side. The tip of the sieve is defined by a cylindrical container (5) having a closed bottom (6). The intake end (9) of suction tube (8) extends into the container. Wash water is introduced into washer arm (14) through an inner end fixedly attached to a hollow flange (13) mounted on a rotary shaft (12) of pressurized spray apparatus (11). The hollow flange has a rim (19) in direct communication with a bearing defined by a wash water distribution chamber connected to a wash water inlet conduit and fixedly mounted to the housing.