Thanks Saw. First you get credit for the idea of displacing the oxygen and the responses by others on the forum indicated the cost of carbon dioxide v nitrogen. The coal mills (crushers) are actually sealed units when the valve is closed. We plan to fill the sealed crusher with carbon dioxide and close the valve. I had an expert in that used a lot of fancy terms and gases in his explanation. When he was done I asked can I just use nitrogen or even carbon dioxide. He said yes, he had not thought of that. Compliments to your last statement, the minds of many sometimes out smart the experts. When the time comes to dismantle these, I will post a more detailed explanation and pictures.
Thanks again.
Bookmarks