Tubular electrodialysis and electrodeposition membrane electrode device
OwnerRoberto Pizzamiglio, Claudio Moretti +1inventors
InventorsRoberto Pizzamiglio, Claudio Moretti, J?uuml;rgen Weschke
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Abstract
A tubular electrodeposition and electrodialysis cell (1), in particular for painting processes by immersion in a paint bath, having preferably a rigid supporting structure (8), at least one electrode (7), to separate the paint bath from a dialysis liquid circulating in the cell; members (21, 24, 41, 42, 46) are provided which cooperate with the supporting structure (8) to fit the membrane (9) hermetically to the supporting structure (8) and permit removal of the membrane.
Claims15
1) A tubular electrodeposition and electrodialysis cell (1, 1a, 1b) comprising at least one electrode (7);
- a supporting structure (8);
- and a semipermeable membrane (9) carried by the supporting structure and surrounding said electrode, at a given distance from the electrode;
- the tubular cell having a dialysis liquid circulating channel (50) extending at least partly between the semipermeable membrane and the electrode;
- and the tubular cell being characterized by comprising members (21, 24, 41, 42, 46) cooperating with the supporting structure (8) to fit said semipermeable membrane (9) hermetically and releasably to said supporting structure (8), so as to permit replacement of said semipermeable membrane.
13). A tubular cell as claimed in claim 12, characterized in that said members comprise a fastening bar (47) extending longitudinally between said fastening rings (43) and superimposed over said axial portions (23) of the groove (21).
15) A tubular cell as claimed in the foregoing claim, characterized in that said supporting structure (8) comprises a tubular body (13) in the form of a net or grille on which the semipermeable membrane (9) is wound, and two connecting portions (84, 85) located at opposite axial ends (14, 15) of the tubular body (13) and having respective grooves (90) housing respective endless seals (24);
- said members comprising two fastening rings (43) superimposed over said grooves (90) to grip the semipermeable membrane (9) to said connecting portions (84, 85), with the interposition of said seals (24).
Dependencies are inferred from the claim text.