Liquid solid separator recirculation systems
OwnerJohn Christopher Mitchellinventor
Life of this patent
Estimating the term…
Abstract
A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. Various recirculation systems are proposed including an external pump sump, internal pump recirculation and dual pumps with one disposed externally in a sump and one internally in the lower basin of the container. Recirculation points include an inflow pipe connection, an influent basin connection located above the influent basin and influent basin connection located underneath the liquid solid mixture influent level.
Claims20
A rotating belt filtration system comprising:
- a container (100);
- a sump (240) external to, and elevationally lower than the container (100);
- an endless, inclined, rotating filter belt (130) disposed within the container (100) dividing the container (100) into an upper influent basin (120) and at least one filtered liquid basin (210) for receiving filtered liquid (200) which has passed by gravity through the rotating filter belt (130);
- a lower collection basin (170) beneath the filtered liquid basin (210) and in fluid communication with a drain line (300A) for draining accumulated liquid from the lower collection basin (170) of container (100) into the sump (240);
- an outflow pipe (220) permitting egress of filtered liquid (200) from the at least one filtered liquid basin (210);
- and
- a pump (230) located in the sump (240) having a recirculation pipe (250a) attached thereto wherein the recirculation pipe (250a) is also attached to a connector (260) on the container (100) for delivering recirculated fluid to the upper influent basin (120).
A rotating belt filtration system comprising:
- a container (100);
- a sump (240) external to, and elevationally lower than the container (100);
- an endless, inclined, rotating filter belt (130) disposed within the container (100) dividing the container (100) into an upper influent basin (120) and at least one filtered liquid basin (210) for receiving filtered liquid (200) which has passed by gravity through the rotating filter belt (130);
- a lower collection basin (170) beneath the filtered liquid basin (210) and in fluid communication with a drain line (300A) for draining accumulated liquid from the lower collection basin (170) of container (100) into the sump (240);
- an outflow pipe (220) permitting egress of filtered liquid (200) from the at least one filtered liquid basin (210);
- and
- a pump (230) located in the sump (240) having recirculation piping including two segments:
- a first pipe segment (250a);
- and
- a second pipe segment (250b);
- wherein the first pipe segment (250a) is fluidically connected to the pump (230) at one end, and is connected to a back flow preventer (280) at the other end, and the second pipe segment (250b) is connected to the back flow preventer (280) at one end, and is in fluid communication with the upper influent basin (120) such that recirculated fluid from the sump (230) may be introduced into the upper influent basin (120).
Dependencies are inferred from the claim text.