Sedimentation Filtration Installation
OwnerKlaus Hoffmanninventor
Life of this patent
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Abstract
Abstract of Disclosure For increasing the capacity of a continuously operating sedimentation filtration device, the processing liquid to be cleaned is supplied before or adjacent to the filter body on opposed sides into the sedimentation container. Underneath the filter body, a comparatively high settling chamber is formed and between the filter body and the supply lines a separating plate is provided so that the processing liquid to be cleaned is guided mandatorily into the settling chamber . The cross-sections of the supply lines provided on opposed sides are comparatively large so that only minimal flow velocities of the incoming medium will occur.
Claims21
WHAT IS CLAIMED IS:
- 1.A continuously operating sedimentation filtration device for cleaning a contaminated processing liquid, the sedimentation filtration device comprising:
- a sedimentation container having an overflow;
- several plate-shaped filter elements, having a working position in which the filter elements are arranged at a slant and extend parallel to one another at a spacing to one another, wherein the filter elements form a filter body arranged in the sedimentation container;
- a removal device for removing sediment deposited in the sedimentation container;
- a clean liquid tank connected to the overflow of the sedimentation container for receiving cleaned processing liquid having passed through the filter body;
- a supply comprising at least two connecting sockets for introducing the contaminated processing liquid into the sedimentation container, wherein the at least two connecting sockets are connected to the sedimentation container on opposed sides of the sedimentation container adjacent to or before the filter elements;
- wherein between a bottom side of the filter body and a bottom of the sedimentation container a settling chamber is formed, wherein the settling chamber is filled with processing liquid;
- wherein the settling chamber has a vertical height of at least 1/5 of a vertical height of the filter body;
- a separating plate provided between the filter body and the connecting sockets and configured to separate the processing liquid supplied via the connecting sockets from the filter body and guiding the processing liquid mandatorily into the settling chamber, from where the processing liquid flows through the filter body from the bottom to the top;
- wherein the removal device for the deposited sediment is a scraper belt arranged on the bottom of the sedimentation container and guided from a horizontal running direction across the bottom of the sedimentation container into a slantedly upwardly extending removal direction across at least two rolls or pinions arranged in the sedimentation container in a vertically staggered position relative to one another.
The sedimentation filtration device according to claim 1, wherein the supply is vented.
The sedimentation filtration device according to claim 1, wherein the connecting sockets for introducing the processing liquid into the sedimentation container are widened to a box shape.
The sedimentation filtration device according to claim 1, wherein the filter elements are pivotable from the working position into a cleaning position in which the filter elements extending approximately vertically.
The sedimentation filtration device according to claim 4, comprising a pneumatic drive device for pivoting the filter elements.
The sedimentation filtration device according to claim 1, further comprising blowpipes arranged underneath the filter body in the sedimentation container, wherein, for cleaning the filter elements or the filter body the blowpipes are loaded with compressed air.
The sedimentation filtration device according to claim 6, wherein the blowpipes are controlled individually by compressed air valves with compressed air.
The sedimentation filtration device according to claim 6, wherein the blowpipes have compressed air connectors on both ends of the blowpipes, respectively.
The sedimentation filtration device according to claim 1, further comprising an unbalance shaker for cleaning the filter elements or the filter body.
The sedimentation filtration device according to claim 1, wherein the scraper belt is comprised of chains and removal strips guided on the chains, wherein the removal strips are arranged parallel to one another at a spacing to one another and run across the bottom of the sedimentation container.
The sedimentation filtration device according to claim 10, wherein in a bottom area of the sedimentation container at least two spacer guides are provided extending transversely to a movement direction of the removal strips, wherein the removal strips have an underside resting on the spacer guides.
The sedimentation filtration device according to claim 10, wherein the scraper belt comprises pinions or cylindrical rolls with grooves for driving, deflecting, or tightening the chains, wherein the chains have chain members engaging the grooves positive-lockingly.
The sedimentation filtration device according to claim 10, further comprising a pendulously suspended stripper device for removing sediment from the removal strips of the scraper belt, wherein the pendulously suspended stripper device acts abrasively on a topside of the removal strips and moves relative to the scraper belt or the removal strips.
The sedimentation filtration device according to claim 1, wherein the filter elements have spacer strips extending parallel to one another.
The sedimentation filtration device according to claim 1, further comprising an oil removal belt, positioned in the sedimentation container so as to run above the liquid level for removing foreign oil floating on the processing liquid, wherein the oil removal belt has rib-shaped strippers positioned at the spacing to one another.
The sedimentation filtration device according to claim 1, further comprising an oil suction pump arranged in the sedimentation container for removing foreign oil floating on the processing liquid.
The sedimentation filtration device according to claim 1, further comprising a skimmer arranged in the sedimentation container for removing foreign oil floating on the processing liquid.
The sedimentation filtration device according to claim 1, further comprising two at least partially slantedly extending stay-shaped floating oil barriers arranged laterally in the sedimentation container above the filter body.
The sedimentation filtration device according to claim 1, comprising a level control configured to control a liquid level of the processing liquid in the sedimentation container.
The sedimentation filtration device according to claim 19, wherein the level control comprises ultrasound sensors for detecting the liquid level of the processing liquid and controllable governing devices for adjusting the liquid level.
The sedimentation filtration device according to claim 20, wherein the controllable governing devices are overflow flaps.
Dependencies are inferred from the claim text.