# US 5,705,060 A · Vessel for mixing or separating flowing media

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- Number: US 5,705,060 A
- Document ID: US5705060A
- Status: Granted
- Kind: A
- Application number: 08/714,092
- Filed: 1996-09-17
- Granted: 1998-01-06
- Earliest claimed: 1994-03-24
- Assignees: Gavle Galvan Tryckkarl AB
- Inventors: Lennart Robberts
- Web page: https://patentgrep.com/patent/US5705060A

## CPC

- F04F 5/42: characterised by the input flow of inducing fluid medium being radial or tangential to output flow (cyclones B04C)
- B01F 25/10: Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
- B04C 3/00: Apparatus in which the axial direction of the vortex {flow following a screw-thread type line} remains unchanged {; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct (combined with other devices B04C9/00)}
- B04C 3/06: Construction of inlets or outlets to the vortex chamber
- C02F 1/20: by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D)
- C02F 1/505: {by oligodynamic treatment}
- C02F 1/78: with ozone {(C02F1/4672 takes precedence)}
- C02F 1/72: by oxidation {(C02F1/4672 takes precedence)}
- F04F: PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED {(evacuating by sorption F04B)}; SIPHONS {(conveying materials in bulk by flows of gas, liquid of foam B65G53/00)}
- B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06)
- B04C: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ({centrifugal separation of water from steam B01D45/12;} jet mills B02C19/06; {wind sifters B07B7/00;} cyclonic type combustion apparatus F23; {vortex burners for cyclone-type combustion apparatus F23D1/02; cyclonic type combustion apparatus for gas turbines F23R3/00})
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

## Abstract

A vessel for mixing flowing media or for extracting heavy constituents from flowing media generates a natural vortex in the media flowing in the vessel. The vessel cross-section has at least one increase in cross-sectional area within the region of the generated natural vortex.

## Claims

### Claim 1

A vessel for treatment of liquid comprising:
an inlet chamber for liquid,
a first tubular part immediately downstream of the inlet chamber,
means to give the liquid a rotational movement around an axis of the first tubular part when entering said first tubular part,
a second tubular part downstream of said first tubular part and having a larger diameter than said first tubular part, said second tubular part being connected to the first tubular part via a transition part an outer conduit for liquid; and
an inlet conduit for gas connected to the vessel upstream of said transition part, wherewith a natural vortex in the media flowing in the vessel is generated in said second tubular part.

### Claim 2 (depends on 1)

A vessel according to claim 1 further comprising means located in the first tubular part for stabilizing the rotational movement of the liquid in said part.

### Claim 3 (depends on 1)

A vessel according to claim 1 wherein said means to give the liquid rotational movement comprises a delivery conduit for liquid connected tangentially to the vessel at the inlet chamber.

### Claim 4 (depends on 1)

A vessel according to claim 1 further comprising a rotationally driven impeller in at least one of the inlet chamber and an outlet chamber downstream of said second tubular part.

### Claim 5 (depends on 1)

A vessel according to claim 1 wherein said means to give the liquid a rotational movement comprises guide means which force the liquid to flow in a helical path.

### Claim 6 (depends on 1)

A vessel according to claim 1 further comprising a centrally positioned tube for delivering oxygen-containing gas which extends axially through the inlet chamber and discharges in the vessel upstream of the transition part.

### Claim 7 (depends on 6)

A vessel according to claim 6 wherein said centrally positioned tube has a flared outlet.

### Claim 8 (depends on 6)

A vessel according to claim 6 wherein the centrally positioned tube is axially movable.

### Claim 9 (depends on 1)

A vessel according to claim 1 further comprising an outlet downstream of said second tubular part which comprises a centrally placed outlet pipe the outlet conduit being radially outside the outlet pipe.

### Claim 10 (depends on 1)

A vessel according to claim 1 conduit further comprising a vortex generating means at the outlet downstream of said second tubular part.