They consist of four main parts: water-supply pipe or shaft with an air-inlet inside it, water outflow pipe, separation chamber and takeoff air-pipe. At Canadian Hydro Developers' Ragged Chute facility in New Liskeard, Ontario, water falls down a shaft 351 feet (107 m) deep and 9 ft (2.7 m) across to generate compressed air for mining equipment and ventilation. The presence of a trompe is a signature attribute of a Catalan forge, a type of bloomery furnace. Trompes were used to provide compressed air for bloomery furnaces in Catalonia and the USA. A trompe is somewhat like an airlift pump working in reverse. For more guidance, see Wikipedia:Translation.Ī trompe is a water-powered air compressor, commonly used before the advent of the electric-powered compressor.You should also add the template to the talk page.A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at ] see its history for attribution. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation.If possible, verify the text with references provided in the foreign-language article. Do not translate text that appears unreliable or low-quality.Consider adding a topic to this template: there are already 5,669 articles in the main category, and specifying |topic= will aid in categorization.Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.refinery too costly for now, but company officials are eying new federal funds aimed at boosting domestic mineral production that might help extend the mine's life cycle. The company projects an initial seven-year run. The cobalt from the Idaho mine will be shipped to a refinery Jervois is refurbishing in São Paulo, Brazil, to be processed. So companies will be jockeying to secure reliable sources of it, domestically and from allied countries, as how China will use its control over most DRC cobalt is uncertain. Still, Martin says the future is electrification of global energy grids, and cobalt plays a key role. Workers at Idaho Cobalt Operations watch a ceremony opening the mine Oct. "To think that we're going to be able to move all this back into the United States in short order and be self sufficient is not right." ![]() "It will be a while before we can actually say that this is going to be a growth industry," says Brad Martin, director of the RAND National Security Supply Chain Institute. Enough for several hundred thousand electric cars, the company says. ![]() Once fully operational, the Idaho mine is expected to meet only about 10% of overall U.S. The $100 million enterprise that publicly traded Jervois is launching will, even at full production, amount to a small blip in the global market. "So we viewed it as a strategically important asset for the country." "Idaho's is the only cobalt mine in the United States and it's going to remain so," Crocker says. Most of its production goes to China, which also controls most cobalt refining globally. Most of the cobalt mined in the world today comes from the Democratic Republic of Congo, where there are widespread child labor and other human rights problems. "This is geopolitically significant because the U.S. "I think this is a really important development for the U.S.," Crocker says. The Jervois mine is also mostly underground and will be capped once operations end, unlike the old, large open pit. It polluted local trout streams, but Jervois Global CEO Bryce Crocker says environmental safeguards are in place for this generation's mine, including $44 million set aside for cleanup, as required by federal law should something unexpected happen. The old mine, shuttered in 1982, was also the only cobalt mine in the U.S.
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