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Pepeo je sve veći problem u elektranama na ugalj. Zahvaljujući ekološkim propisima, mušičari pepeo mora da se skladišti, odloženo, ili reciklirana u beton. Međutim, recycling fly ash requires it to reach certain standards, which can be hard to meet. ST opreme & Tehnologija D.O.O. (STET JE) has found a way to use electrostatic separation equipment to solve or reduce the fly ash pollution problem.
When coal is burned, it produces a fine ash product. This ash is carried out of the boiler unit along with the flue gas combustion air. It is captured by the power plants’ pollution control equipment. The ash collected in the flue gas is called fly ash. According to the Američka asocijacija za pepeo od uglja (ACAA) between the years 2000-2020 the industry produced around 1.1 milijarde tona kratke muva ash.
In order to reduce the amount of waste being placed into landfills, fly ash has to be recycled into a usable product for cement production. Međutim, if a certain amount of unburned carbon remains in the fly ash, it is not usable in the production of concrete.
Current ASTM standards mandate that fly ash used for concrete contain less than 6% residual carbon content. In practice, most end users have carbon specifications well below the 6% Specifikaciju. This means that while fly ash is able to be used in concrete, the availability of quality fly ash that meets the carbon specification without processing is in limited supply.
In order to reduce the fly ash pollution problem, unburned carbon (coal char) must be removed from the fly ash to make it suitable to use in concrete. With the help of fly ash drying equipment, STET’s electrostatic beneficiation technology can do just that. STET’s triboelectric separator reduces the carbon content of fly ash. It produces a low carbon fly ash that is suitable for cement replacement in ready-mix concrete.
In order for fly ash to be usable in cement, it has to measure a loss on ignition (LOI) od 6% or less by weight. Thankfully, STET has pioneered a process to remove carbon from fly ash. As described in our literature titled 20 Years of Commercial Experience in Dry Triboelectrostatic Beneficiation of Fly Ash, “By controlling various process parameters, kao što je brzina pojas, Nahrani tačka, i nahrani stopa, proces STET proizvodi nisko LOI muva ash na ugljen sadržaj manje od 1.5 to 4.5%”
Through the use of a triboelectric separator, STET can take a high carbon fly ash with 4% da je gotovo 25% LOI and turn it into a low LOI fly ash. Ovaj proces efikasno smanjuje količinu ugljenika na odgovarajuću količinu.
Zahvaljujući STET-ovom elektrostatičnom separacionom opremi, zagađenje izazvano odlaganjem pepela mušice može se efikasno smanjiti. Pored smanjenja odlaganja mušičare pepela, proces razdvajanja je ekološki prihvatljiv i ne proizvodi nikakve otpadne vode ili emisije vazduha.
Bez proizvodnje otpadnih voda ili emisija vazduha, zaista postoje samo prednosti korišćenja elektrostatičkog razdvajanja na pepelu od ugljen-guste mušice. Sada, možete efikasno reciklirati pepeo u odgovarajuću komponentu cementa, bez nepovoljnog uticaja na životnu sredinu.
Sada kada ste videli kako triboelektrični separator može efikasno da smanji zagađenje izazvano pepelom mušice uglja, možete videti zašto bi ulaganje u njega bilo korisno. ST oprema i tehnologija D.O.O. (STET JE) je elektrostatiиna kompanija za razdvajanje sa sedištem u Needhamu, MAMA. We provide mineral processing equipment, oprema za sušenje pepela, and electrostatic separation equipment all over the world. Posvećeni smo pružanju pomoći našim mušterijama i svetu u kome živimo. Želite da saznate više? Kontaktirajte nas Danas!
