Filter device, method for its operation and use thereof
AssigneeSiemens Aktiengesellschaft
InventorUrs Peuker
Life of this patent
Estimating the term…
Abstract
A filter device for filtering a suspension comprises at least one filter for continuous creation of a filter cake containing particles from the suspension; at least one dispensing device configured to apply at least one first wash liquid to the filter cake created by the at least one filter; and at least one steaming unit configured to steam the filter cake using steam, wherein the at least one dispensing device is integrated into a first process chamber and the at least one steaming unit is integrated into a second process chamber separated from the first process chamber by at least one partition wall. The at least one first wash liquid and a second wash liquid used for creating the steam may have boiling temperatures differing by at least 5° C.
Claims17
A filter device for filtering a suspension, comprising:
- at least one filter for creation of a filter cake containing particles from the suspension;
- at least one dispensing device configured to apply at least one first wash liquid to the filter cake created by the at least one filter;
- and
- at least one steaming unit configured to steam the filter cake using steam;
- wherein the at least one dispensing device is integrated inside of a first process chamber to wash the filter cake and the at least one steaming unit is integrated inside of a second process chamber to steam the filter cake from the first process chamber, the second process chamber separated from the first process chamber by at least one movable partition wall extending downward toward the filter;
- at least one measurement device configured to detect a thickness of the filter cake in the first process chamber;
- and
- a control device that controls a drive unit to move the at least one movable partition wall in and out to adjust the distance between the at least one filter and an end of the at least one partition wall based on the detected thickness of the filter cake from the first process chamber.
A method for operating a filter device, comprising:
- using at least one filter to create a filter cake containing particles from a suspension;
- using at least one dispensing device to apply at least one first wash liquid to the filter cake created by the at least one filter;
- and
- using at least one steaming unit to steam the filter cake, wherein the steam is created from a second wash liquid;
- wherein the at least one dispensing device is integrated inside of a first process chamber to wash the filter cake and the at least one steaming unit is integrated inside of a second process chamber to steam the filter cake from the first process chamber, the second process chamber separated from the first process chamber by at least one movable partition wall extending downward toward the filter;
- detecting a thickness of the filter cake using at least one measurement device;
- and
- using a control device that controls a drive unit to move the at least one movable partition wall in and out to adjust the distance between the at least one filter and an end of the at least one partition wall based on the detected thickness of the filter cake from the first process chamber;
- and
- wherein the at least one first wash liquid and the second wash liquid for creating the steam have boiling temperatures differing by at least 5° C.
Dependencies are inferred from the claim text.