Elsevier

Powder Technology

Volume 2, Issue 1, September 1968, Pages 13-20
Powder Technology

The mixing of dry powders

https://doi.org/10.1016/0032-5910(68)80028-2Get rights and content

Abstract

Although the mixing of solid particles is a process about which there is still much to be learnt, designers of industrial plants often fail to take advantage of the available knowledge, so that the best possible results are not achieved. This review discusses the methods of describing, specifying and testing mixtures. The operation of a mixer must be regarded as producing an equilibrium between mixing and segregation. The mechanisms of these processes are discussed and it is proposed that mixers can be classified as either segregating or non-segregating. Components to be mixed can be similarly classified, and a guide to the selection of the mixer for a particular duty is thus obtained: materials that tend to segregate should not be put into a “segregating mixer”. Finally the need for care in the handling of a mixture so as to avoid segregation is discussed.

References (18)

  • J.C. Williams et al.

    The segregation of granules in a vibrated bed

    Powder Technol.

    (1967)
  • J.R. Bourne

    The mixing of powders, pastes and non-Newtonian fluids

    Trans. Inst. Chem. Engrs.

    (1964)
  • P.M.C. Lacey

    The mixing of solid particles

    Trans. Inst. Chem. Engrs.

    (1943)
  • K.R. Poole et al.

    Mixing powders to fine-scale homogeneity: studies of batch mixing

    Trans. Inst. Chem. Engrs.

    (1964)
  • P.M.C. Lacey

    Developments in the theory of particle mixing

    J. Appl. Chem., Lond.

    (1954)
  • D. Buslik

    Mixing and sampling with special reference to multisized granular material

    Bull. Am. Soc. Test. Mater.

    (1950)
  • K. Stange

    The homogeneity of a random mixture as a basis for assessing mixing experiments

    Chem.-Ing.-Tech.

    (1954)
  • N. Harnby

    The estimation of the variance of samples withdrawn from a random mixture of multisized particles

    Trans. Inst. Chem. Engrs.

    (1967)
  • M.D. Ashton et al.

    The mixing of powders and particles in industrial mixers

    Trans. Inst. Chem. Engrs.

    (1966)
There are more references available in the full text version of this article.

Cited by (0)

View full text