Filter device, method for its operation and use thereof
AssigneeSiemens Aktiengesellschaft
InventorElisabeth Schmidt
Life of this patent
Estimating the term…
Abstract
A filter device for filtering a suspension includes at least one filter for continuous creation of a filter cake including particles from the suspension, at least one dispensing device configured to apply at least one first wash liquid to the filter cakes, at least one steaming unit configured to steam the filter cake using steam; at least one removal device configured to remove a surface layer of the filter cake facing away from the at least one filter, wherein the filter device is configured to convey the filter cake to the at least one removal device, the at least one dispensing device and the at least one steaming device, and at least one transport device configured to transport the removed surface layer of the filter cake away from the filter device.
Claims16
A filter device for filtering a suspension comprising:
- at least one filter for continuous creation of a filter cake including particles from the suspension;
- at least one dispensing device configured to apply at least one first wash liquid to the filter cakes;
- at least one steaming unit configured to steam the filter cake using steam;
- at least one removal device upstream of the at least one dispensing device and the at least one steaming unit and comprising at least one jet nozzle configured to deliver a gas to the filter cake to remove a surface layer of the filter cake facing away from the at least one filter, wherein the surface layer comprises only a partial thickness of the filter cake such that a remaining thickness of the filter cake remains on the filter after removal of the surface layer and advances to the at least one dispensing device and the at least one steaming unit;
- wherein the filter device is configured to convey the filter cake to the at least one removal device, the at least one dispensing device and the at least one steaming device;
- and
- at least one transport device configured to transport the removed surface layer of the filter cake away from the filter device.
A method for operating a filter device to filter a suspension, comprising:
- forming a continuous filter cake on a filter, the filter cake including particles from the suspension;
- applying at least one first wash liquid to the filter cakes via at least one dispensing device;
- steaming the filter cake via at least one steaming device;
- delivering gas through at least one jet nozzle of at least one removal device to remove a surface layer of the filter cake facing away from the at least one filter, wherein the surface layer comprises only a partial thickness of the filter cake such that a remaining thickness of the filter cake remains on the filter after removal of the surface layer;
- conveying the filter cake to the at least one removal device and subsequently to the at least one dispensing device and the at least one steaming device;
- and
- transporting the removed surface layer of the filter cake away from the filter device.
Dependencies are inferred from the claim text.