Discharge technology for plastic filters
AssigneeEttlinger Kunststoffmaschinen GmbH
InventorRoderich Ettlinger
Life of this patent
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Abstract
A discharge device is for a filtering device for separating impurities from a material melt, in particular a low-viscosity polymer melt. The discharge device includes a discharge shaft with a pressure screw conveyor and a discharge head. Also disclosed is a filtering device including a cylindrical drum filter, a scraper and such a discharge device.
Claims17
A discharge device for a filtering device for separating impurities from a material melt, the discharge device being configured to discharge separated material from a filter chamber of the filtering device, the discharge device comprising:
- a discharge housing;
- a discharge shaft with a pressure screw conveyor;
- and
- a discharge head, wherein the discharge head is arranged in the discharge housing, and wherein the discharge head is further arranged at an end of the pressure screw conveyor and sits directly on the discharge shaft of the pressure screw conveyor, and wherein the discharge head comprises at least one discharge piston.
A filtering device for separating impurities from a material melt, the filtering device comprising:
- a housing;
- a filter;
- a filter chamber at the surface of the filter;
- and
- a discharge device that is configured to discharge separated material from the filter chamber, the discharge device comprising:
- a discharge housing;
- a discharge shaft with a pressure screw conveyor;
- and a discharge head, wherein the discharge head is arranged in the discharge housing, and wherein the discharge head is further arranged at an end of the pressure screw conveyor and sits directly on the discharge shaft of the pressure screw conveyor, and wherein the discharge head comprises at least one discharge piston.
Dependencies are inferred from the claim text.