Cyclone Separators, Scrubbers, Evaporators
Cyclone separator
Cyclonic separation is a method of removing particulates from an air, gas or water stream, without the use of filters, through vortexseparation. Rotational effects and gravity are used to separate mixtures of solids and fluids. cyclones are used in sawmills to remove sawdust from extracted air. Cyclones are also used in oil refineries to separate oils and gases, and in the cement industry as components of kiln preheaters. Cyclones are increasingly used in the household, as the core technology in bagless vacuum cleaners. Cyclones are also used in industrial and professional kitchens for separating the grease from the exhaust air in extract hoods.
Scrubber, is designed to remove gaseous or vaporous pollutants from an air stream. The process is accomplished by contacting the contaminated air stream with a scrubbing liquor that absorbs or chemically reacts with the pollutants. Some vapors can be simply removed by condensation through the cooling effect of the circulating liquid. The cleaned air is then discharged to the atmosphere and the contaminated scrubbing liquor is either disposed of in an approved manner or chemically treated and recycled. In some cases, the collected contaminants can be recovered and reused in the original or other processes.
evaporator, as defined in chemical engineering, is an apparatus for efficiently using the heat from steam to evaporate water.[1][2] In an evaporator, water is boiled in a sequence of vessels, each held at a lower pressure than the last. Because the boiling point of water decreases as pressure decreases, the vapor boiled off in one vessel can be used to heat the next, and only the first vessel (at the highest pressure) requires an external source of heat. While in theory, evaporators may be built with an arbitrarily large number of stages, evaporators with more than four stages are rarely practical except in systems where the liquor is the desired product such as in chemical recovery systems where up to seven effects are used.