CONTACT BAR FOR ELECTROLYTIC CELLS

1490309 Contact bar for electrolytic cells COMINCO Ltd 17 Nov 1975 [28 Nov 1974] 47312/75 HeadingC7B A contact bar for electrolytic cells comprises a cylindrical or semi-cylindrical metal bar grooved as shown. The grooves are equally spaced and are identical or alternately identical. Parts 25 may be 1/3-¥ of the diameter of ends 22. Sides 27 may be at 45 degress to the bar axis. In use, a cell for electrowinning has alternate anodes and cathodes, each provided with a header bar having at one end an extension with a V-notch in its underside. The notches engage in the grooves of the bar to provide support and electric contact, for which purpose parts 25 should be narrower than the width of the notched extensions. The included angle of the notches may be 75-105 degrees. A semi-cylindrical bar is used at the end of a multi-cell row. For a Cu bar at least 1 sq.in. of bar section is provided per 1000 Amps.