a high speed rotating air flow is established within a cylindrical or conical container called a cyclone. air flows in a helical pattern, beginning at the top wide end of the cyclone and ending at the bottom narrow end before exiting the cyclone in a strht stream through the center of the cyclone and out the top.
iron age hoard. the hoard consists of metal, jet and over 150 gold/silver/copper alloy torc fragments, over 70 of which form complete torcs, dating from bc 70. probably the most famous item from the hoard is the great torc from snettisham, which is now held by the british museum. though the origins are unknown, it is of a high enough quality to have been royal treasure of the iceni.
an api oil–water separator is a device designed to separate gross amounts of oil and suspended solids from the wastewater effluents of oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial oily water sources.
oil and gas separators can operate at pressures ranging from a high vacuum to 4,000 to 5,000 psi. most oil and gas separators operate in the pressure range of 20 to 1,500 psi. separators may be referred to as low pressure, medium pressure, or high pressure. low-pressure separators usually operate at pressures ranging from 10 to 20 up to 180 to 225 psi.
gold quality was increased at the surface by 80–95% gold compared to 64–75% gold at the interior found in nahal qanah cave dated to the 4th millennium bc. further evidence is from three gold chisels from the 3rd millennium bc royal cemetery at ur that had a surface of high gold 83% , low silver 9% and copper 8% compared with an interior of 45% gold, 10% silver and 45% copper.
the staffordshire hoard is the largest hoard of anglo-saxon gold and silver metalwork yet found.it consists of over 3,500 items, amounting to a total of 5.1 kg 11 lb of gold, 1.4 kg 3 lb of silver and some 3,500 pieces of garnet cloisonné jewellery.. the hoard was most likely deposited in the 7th century, and contains artefacts probably manufactured during the 6th and 7th centuries.
the high tension rollers are usually used for streams that have coarse conductors and fine non-conductors. these separators are commonly used for separating mineral sands, an example of one of these mineral processing plants is the crl
gold-filled jewelry is jewelry composed of a solid layer of gold typically constituting at least 5% of the item's total weight mechanically bonded to a base of either sterling silver or some base metal. the related terms 'rolled gold plate' and 'gold overlay' may legally be used in some contexts if the layer of gold constitutes less than 5% of the item's weight. most high quality gold-filled .