a partially demolished factory with dominating cyclonic separators. a cyclonic separation is a method of removing particulates from an air, gas or liquid stream, without the use of filters, through vortex separation. when removing particulate matter from liquid, a hydrocyclone is used; while from gas, a gas cyclone is used.
the pulverized material is carried out of the mill by the flow of air moving through it. the size of the pulverized particles released from the grinding section of the mill is determined by a classifier separator. if the coal is fine enough to be picked up by the air, it is carried through the classifier. coarser particles return to be further .
a hydrothermal vent is a fissure on the seafloor from which geothermally heated water issues. hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart at spreading centers, ocean basins, and hotspots. hydrothermal deposits are rocks and mineral ore deposits formed by the action of hydrothermal vents.
the black pigment, which was introduced during the later period of the culture, was a rare commodity: taken from a few sources and circulated to a limited degree throughout the region. the probable sources of these pigments were iacobeni in romania for the iron magnetite ore and nikopol in ukraine for the manganese jacobsite ore.
depending on the required coal fineness, there are two types of classifier that may be selected for a vertical roller mill. the dynamic classifier, which consists of a stationary angled inlet vane assembly surrounding a rotating vane assembly or cage, is capable of producing micrometer-fine pulverized coal with a narrow particle size distribution. in addition, adjusting the speed of the rotating cage can easily change the intensity of the centrifugal force field in the classification zone to .
the ore processing plant at lac jeannine had 12 identical processing lines. the first stage was autogenous grinding, and then the ore was separated using a gravimetric circuit with spiral classifiers. the ore from the circuit was filtered, and then shipped by rail to port-cartier.
recycling: gravity separators are used to remove viable or valuable components from the recycling mixture i.e.: metal from plastic, rubber from plastic, different grades of plastic and these valuable materials are further recycled and reutilized.
the dominant view since the 1960s has been that the increasing use of iron led to social changes in britain. deposits of iron ore were separated from the sources of tin and copper necessary to make bronze, and as a result trading patterns shifted and the old elites lost their economic and social status.