| 摘要 |
<p>This process allows to obtain a continuous granulation of mixtures which harden after homogenization. A premixture is fed from a hopper (1) and it is kneaded, homogenized and plastified in a continuous working machine (2). For the shaping, the mixture ejected from the machine (2) come into a worm screw (4) provided with a hole spinning plate where it fed at low transport pressures to form fillets. These fillets are cut into pieces at the outlet end of the worm screw (4) and they are pneumatically transported towards a sorter. If required, the volatile particules between the machine (2) and the worm screw (4) may be removed. The feed side of the worm screw (4) is connected to the output of the machine (2) by means of a connection pipe (3). The worm screw (4) has a small slope and a relatively fixed core with respect to its outer diameter and rotates in a housing which is divided into longitudinal channels by means of narrow ribs. The possible uses are for example the premixtures of resine, filler or chalk materials, additives and hardener or phenolic resine, cotton fibres, additives and hardener. </p> |
