Moebius silver cell operating.

[eduardo.met]

After a long time I may have time to post on the forum. I hope it is not the last time. Here I share some photos of the Moebius cell I designed in operation.

 

[4metals]

How are you knocking the crystal down off the cathode?

 

[eduardo.met]

How are you knocking the crystal down off the cathode?

mechanically with a plastic spatula and placed it in a beaker.

 

[Shark]

A short video clip would be nice.

 

[4metals]

mechanically with a plastic spatula and placed it in a beaker.

so you do it by hand or with a scraper that moves back and forth constantly?

 

[eduardo.met]

so you do it by hand or with a scraper that moves back and forth constantly?

At first I considered designing a small automatic mechanical scraper that runs on a timer and battery, but I considered simplifying the process to just doing it by hand.

 

[eduardo.met]

A short video clip would be nice.

I'm considering it. Maybe I'll upload a short video to YouTube.

 

[4metals]

The one beauty of a Moebius cell (vertical) is that automatic scraping allows you to run the cell at full power over night without slowing down. But setting up a cathode rocker to scrape the cells is easy to do and pays off. The trade off is the anode stubs that have to be re-cast into anodes and changing anode bags that start to seep. Also a sloped bottom so the fallen crystals slide to one side so they can be scooped out is nice.

A thum cell (horizontal) requires scraping every 4 hours or so around the clock to maintain production. It has a larger footprint but the anodes corrode completely and changing out the anode bag is simple and easily accomplished without much mess. Unfortunately an automatic scraping system for a horizontal cathode has yet to be perfected.

So if I was having to choose a cell that had to be scraped manually, I would choose a thum cell.

 

[BGDOCK]

Why are the crystals on the cathode discolored in the bottom of the sheet ?

 

[eduardo.met]

The one beauty of a Moebius cell (vertical) is that automatic scraping allows you to run the cell at full power over night without slowing down. But setting up a cathode rocker to scrape the cells is easy to do and pays off. The trade off is the anode stubs that have to be re-cast into anodes and changing anode bags that start to seep. Also a sloped bottom so the fallen crystals slide to one side so they can be scooped out is nice.

A thum cell (horizontal) requires scraping every 4 hours or so around the clock to maintain production. It has a larger footprint but the anodes corrode completely and changing out the anode bag is simple and easily accomplished without much mess. Unfortunately an automatic scraping system for a horizontal cathode has yet to be perfected.

So if I was having to choose a cell that had to be scraped manually, I would choose a thum cell.

you're right. i'll consider designing it with some time.

 

[eduardo.met]

Why are the crystals on the cathode discolored in the bottom of the sheet ?

It's just the effect of light and shadows.