Today, sintered filters are employed more and more, but do you know why these metal filters are slowly replacing the last generation of filter elements? Yes, it should be that the sintered filter element has many irreplaceable features, and the purchase price and the fee be cheaper. So If you're interested to know additional information, please continue to learn following.
What Is a Filter ?
Filter can be an indispensable device for conveying media pipelines, usually installed in pressure relief valve, water level valve, square filter and other equipment at the inlet end of the equipment Sintered Metal Filter. The filter is composed of cylinder body, metal filter mesh, sewage part, transmission device and electrical control part. Following the water to be treated passes through the filter cartridge of the filter mesh, its impurities are blocked. When cleaning is required, as long as the detachable filter cartridge is taken out and reloaded after treatment, it's therefore extremely convenient to use and maintain.
What Could be the Working Principle of Sintered Metal Filter ?Sintered metal filters are efficient, two-dimensional, filter type, and particles are collected at first glance of the medium. The correct choice of media grade must balance the wants of filtration applications for particle retention, pressure drop, and backwash capability. There are basically three process factors to take into account: the velocity of the fluid through the filter medium, the viscosity of the fluid, and the particle properties. Important particle properties are particle shape, size, and density. Hard, regular-shaped particles that form incompressible cakes, such as FCC catalysts, are well suited for surface filtration.
The filtration operation is based on a consistent flow rate, increasing the pressure drop before the terminal pressure drop is reached. The final condition is going to be reached once the catalyst cake thickness is increased to the point where the fluid flow pressure drop is maximal for a given flow and viscosity condition. The filter is then backwashed by pressurizing the filter with gas, followed with a quick opening of the backwash discharge valve. This backwashing procedure produces an instant high reverse differential pressure, that may effectively remove solids from the medium surface. The reverse flow of clean liquid (filtrate) through the medium helps remove solids and flush them out from the filter.
History of Filters
Tens of thousands of years back, the ancient Egyptians used the initial ceramic filters manufactured from porous clay pots. Experiments in seawater desalination in the 17th century led to the creation of multi-layer sand filters. Nobel-prize laureate Richard Zsigmondy invented the initial membrane filter and ultra-fine membrane filter in 1922. In 2010, the nanotechnology filter was introduced. Until today, sintered metal filters are widely found in all walks of life, and play an irreplaceable role in production and life.
Applications
With the development of economy and the wants of production and life, filter has been found in various fields for its advantages. In this part, we list some for you.
Beverage Industry
The method of making carbonated water by injecting co2 into water was initially discovered by an Englishman, Joseph Priestley, in the late 18th century, while hanging a pan of distilled water over a keg of beer in a brewery. The oil of sulfuric acid is dropped onto chalk to produce co2 gas, which will be dissolved into the water in a mixing bowl. Later, Swedish chemist Torben Bergman invented a power generator that used sulfuric acid to extract carbonated water from chalk. Carbonated water is really made employing a soda siphon or a home carbonation system or by dropping dry ice into the water. Food-grade co2 used to carbonate beverages typically originates from ammonia plants.
At present, the sintered metal filter, such as porous sparer, is popular to spurge gas into water. The porous sparer ensures the distribution of the gas in the liquid through tens of thousands of tiny pores. The sparer produces smaller but more bubbles compared to drilled tube and other sparging methods. The surface of the porous sparer has tens of thousands of holes, causing a large amount of gas to pass through a certain location in the liquid. So co2 may be dissolved into water evenly.
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