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                                       Details van artikel 5 van 11 gevonden artikelen
 
 
  Electrostatic beneficiation of fly ash using an ejector-tribocharger
 
 
Titel: Electrostatic beneficiation of fly ash using an ejector-tribocharger
Auteur: Kim, Jae-Kwan
Cho, Hee-Chan
Kim, Sung-Chul
Chun, Hai-Soo
Verschenen in: Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
Paginering: Jaargang 35 (2000) nr. 3 pagina's 357-377
Jaar: 2000-03
Inhoud: Tests were conducted to investigate the triboelectrostatic process for separating unburned carbon from coal fly ash. Using a batch type separator composed of two parallel plates and an ejector-tribocharger, the charge density and the separation efficiency were evaluated under various operating conditions. These included the air flow rate, the solids loading, the relative humidity and the temperature of the air, and the voltage between the two parallel electrodes. It was found that the relative humidity of the surrounding air was the most influencing factor of the charge density as well as the separation efficiency. The maximum charge density was obtained at the air flow rate of 326 l/min, and the air temperature of 74 °C when operated at solids loadings less than 290 g/m3 and at lower than 30% relative humidity. At the optimum conditions, a fly ash of 7.5% LOI could be processed into a 3.0% LOI product with a recovery over 80%.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details van artikel 5 van 11 gevonden artikelen
 
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