The Influence of the Velocity of Filtration in the Formation and Removal the Dust Cake

Abstract:

The effective filtration area determined in a design of fabric filter depends on the filtration velocity, also known as air-to-cloth ratio that will be used. Low filtration velocities may demand big effective filtration areas. But then high filtration velocities may wear the filters out early. By searching for more efficient and economic equipments, this paper investigated the influence of the filtration velocity by formatting and removing the dust cake. Concluding that filtering at higher velocities a higher penetration of particles in the filter media occurs. Decreasing the filtration time and increasing the number which regenerates the cloth, consequently decreasing the life cycle of the filters.

• Periodical: Materials Science Forum (Volumes 660-661)
• Pages: 46-51
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.660-661.46
• Online since: October 2010
• Authors: Sandra Mara Santana Rocha, C.B. Vasconcelos, Luiz Gustavo Martins Vieira, M.L. Aguiar, João Jorge Ribeiro Damasceno
• Keywords: Dust Cake, Fabric Filter, Gas Filtration, Velocity Filtration

References

[1] E. R. Tognetti: Influência das condições operacionais na formação e remoção de tortas de filtração de gases. Dissertação (Mestrado). São Carlos 2007. UFSCar-SP.

DOI: 10.14393/ufu.di.2011.122

[2] D. Leith and R. W. K. Allen In: Progress in Filtration, R. J. Wakman (ed. ) N. L. Elsevier, Vol. 4 (1986), pp.1-57.

[3] R. P. Donovan: Fabric filtration for combustion sources. Marcel Dekker Inc., New York, (1985).

[4] C. R. N. Silva, et al.: Powder Technology Vol. 101 (1999), p.165.

[5] S.M.S. Rocha, L.G.V. Martins, M.L. Aguiar and J.J.R. Damasceno: Fluid dynamics study of the influence of the position of the feed in fabric filters In: 10 th International Symposium on Process Systems Engineering, PSE, Salvador BA (2009).

DOI: 10.1016/s1570-7946(09)70401-8

[6] .M.S. Rocha; L.G.V. Martins; M.L. Aguiar and J.J.R. Damasceno: Study on the Influence of the Dust Cake Tickness in Fluid Flow In: Filtech, Wiesbaden Germany (2009).

[7] E. H. Tanabe et al. in: Study of the profundity of particles penetration in different fabric filters. In: World Filtration Congress, Oct. 2008, Leipzig. Proceedings… Alemanha, Vol. 3 (2008), p.403.

[8] R.D. Lucas: Influência das variáveis operacionais e do tipo de material pulverulento na formação e remoção de tortas de filtração de gases em filtros de tecidos. Dissertação (Mestrado). São Carlos 2000. EFSCar-SP.

DOI: 10.14393/ufu.di.2011.122