Apparatus and method for suction and discharge of material
AssigneeDisab Vacuum Technology AB
InventorsKarl T. Haugen, Gert Lovgren, Jan Billberg, Gisle Hauk
Life of this patent
Estimating the term…
Abstract
An apparatus for suction and discharge of material comprises a container (9) with a suction opening (19) for letting in a sucked-up air/material mixture and a discharge opening (14) for discharging material. The container (9) is rotatable and has inner conveying means (18) which upon rotation of the container (9) are adapted to convey the material to the discharge opening (14).
Claims24
An apparatus for suction and discharge of material, comprising a container (9) with a suction opening (19) for letting in a sucked-up air/material mixture and a discharge opening (14) for discharging of material, characterized in that the container (9) is rotatable and has inner conveying means (18) which upon rotation of the container (9) are adapted to convey the material to the discharge opening (14);
- wherein the container (9) has an exhaust opening (20) for letting out air.
A method for suction and discharge of material, characterized by the steps of
- connecting via a first connecting means a suction duct to a suction opening in a rotatable container,
- connecting via a second connecting means an exhaust duct to an exhaust opening in the container, the exhaust duct communicating with an extractor for air,
- drawing in material and air from the suction duct by suction through the suction opening into the container,
- drawing in air from the container by suction through the exhaust opening to the exhaust duct, material and air being separated,
- detecting a filling level in the container,
- disconnecting, when said level exceeds a predetermined threshold value, via said first and second connecting means the suction and exhaust ducts from the container, and opening a discharge opening in the container, and
- conveying, by rotation of the container, the material out of the discharge opening with the aid of at least partly helical conveying means arranged in the container.
Dependencies are inferred from the claim text.