| 摘要 |
The present invention relates to a chemical feeder that includes a housing (11) having a housing chamber (20), a sieve plate (35) residing within the housing chamber (20), and a funnel (47) residing on an upper surface (38) of the sieve plate (35). The funnel (47) includes upper (53) and lower (59) openings, an interior funnel space (74), and at least one funnel sidewall aperture (65). The sieve plate (35) includes a plurality of sieve plate apertures (44) at least a portion of which are in fluid communication with the interior funnel space (74) via the lower funnel opening (59). During operation, a feed liquid passes up through at least a portion of the sieve plate apertures (44) and into the interior funnel space (74) where it contacts a solid chemical material (92), so as to form a treated liquid that includes dissolved chemical material, at least a portion of which passes out through the funnel sidewall aperture(s) (65) and exits the chemical feed through an outlet (86). |
