摘要:
Drying, dehumidifying apparatus (10), of the microwave type for the rapid and continuous drying of plastic material, in granules, pellets or flakes, for feeding an injection or extrusion moulding system of products in plastic material. The apparatus (10) comprising a container body (100) of a tower-like cylindrical shape, whose upper part by means of a mouth (111) is used to load the plastic material. Coaxially with respect to said container body is placed a vertical rotating shaft (200) for mixing plastic material. Peripherally with respect to said container body (100) some microwave generating devices (300,310) are mounted. The lower part of said container body is provided with an ambient air heater device (400) in such a way that the air introduced into said heater device (400), is first heated, then crossing a sintered filter (420), dehumidified introduced in correspondence of the base of said container body (100) in the container body (100) itself of said plastic material. Sensor means of product presence (500), of material temperature (510) and control, of process air temperature after the heater device, interact, provide data to a control logic unit of said apparatus (10).
摘要:
Continuous apparatus (A) for the fast dehumidification of loose materials (M), particularly pellets for plastic moulding plants, consisting of: -a first vertical container (1) to contain the pellets to be processed; -a second container (2), orthogonal and in communication with said first for the processing of the pellets, with a fluidized bed and longitudinal auger (3), on which microwave generators (5,6) operate; -a circuit for the distribution of a dehumidified airflow at a controlled temperature inside said second container (2); -means for the aspiration of the airflow at a controlled temperature and enriched with humidity from inside said second container (2), for then said airflow to be dehumidified and reintroduced inside said second container (2); -sensor means (22,102,103) for the detection of the temperature and humidity percentage present in the pellets at least in said second container (2).
摘要:
Apparatus for fast and continuous drying and dehumidification of bulk materials and process with a plant for drying, dehumidifying bulk materials, in which the treatment chamber includes adjacent container modules along said linear path, which are transversally placed with respect to said linear path, each of them having a cradle cross section, wherein each container module comprises at least one tilter device and it is separated from the other one by a separating plate which is adjustable in height so that said bulk material overflows over the respective top edge of the separating plate and it flows down in the adjacent transverse container module with cradle section.