B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
341/35
B01J 2/00 (2006.01) B01J 2/14 (2006.01) B28B 17/00 (2006.01) C03B 1/02 (2006.01) G05D 7/06 (2006.01)
Patent
CA 1155945
ABSTRACT OF THE DISCLOSURE A method and apparatus are provided for controlling the amount of dry particulate matter and liquid added to a ro- tary pelletizer. A transducer senses a characteristic of the mixed material in the pelletizer. The transducer signal is then conditioned to provide a signal level corresponding to a desired characteristic level and which varies about that level corresponding for example to the variations of pellet size about a desired size. That signal is added to a second signal representing either the actual liquid flow actual dry particu- late flow into the pelletizer and modulates that respective flow to maintain the input of either the dry particulate or the liquid material into the pelletizer as necessary. Addition- ally, a set point signal can be provided as a constant signal representing desired dry particulate in flow or liquid in flow. The dry or the liquid signal also can be derived from the res- pective actual liquid or dry signal by taking a proper propor- tion of the other signal.
342026
Henry Richard K.
Varrasso Eugene C.
G. Ronald Bell & Associates
Owens Corning
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