| 摘要 |
<p>It is applicable to the recovery mainly of pastry goods, such as cookies, biscuits or the like, packaged in cardboard, plastic or the like, which may also include staples, nails or other fastening and sealing elements. The raw material in bulk is received in a hopper (1) from which it is led by means of an Archimedean screw (2) to a hammer mill or the like (4) in order to be ground. After passing through some grids it is collected by a second helicoidal screw (6), whose covering frame (7) has in its final section a grating (12) that defines a screen where the useable material in the form of grain or flour is separated by gravity. The unuseable material and that still contains particles of edible material passes to a trommel (8), at the outlet of which there is an absorption device (9) of the unuseable material. In the top part of the hammer mill (4) there is a device with magnets (5) to remove the possible staples, nails, etc. The compact or metallic remains that come out of the trommel (8) and which are not collected by the absorption device (9) are returned to the grinding mill (4.) <IMAGE></p> |
