| 摘要 |
In the production of animal feedstuffs, a plurality of ingredients, at least some of which are in oversized particulate form, are mixed together in predetermined quantities in a mixer (30). This mixture is introduced into a vibratory sieve (48) which acts to separate the oversized particles from the mixture. The oversized particles are ground down in a grinder (52) and the ground particles are re-introduced to the inlet of the vibratory sieve (48) the material passing through the sieve constituting the required output feed which can be bagged or pelleted, as desired. At the beginning of a production run, the output of the sieve (48) during an initial predetermined period is arranged to be stored until the end of that production run when it is added to the final output of the grinder (52) to ensure that the ingredients in the resulting output of the sieve (48) remain in the correct proportions. <IMAGE> |
