GB1360122A - Vortex cleaner - Google Patents
Vortex cleanerInfo
- Publication number
- GB1360122A GB1360122A GB2134272A GB2134272A GB1360122A GB 1360122 A GB1360122 A GB 1360122A GB 2134272 A GB2134272 A GB 2134272A GB 2134272 A GB2134272 A GB 2134272A GB 1360122 A GB1360122 A GB 1360122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vortex
- chamber
- opening
- wall
- fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000725 suspension Substances 0.000 abstract 9
- 239000000835 fiber Substances 0.000 abstract 7
- 238000005192 partition Methods 0.000 abstract 4
- 238000011001 backwashing Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Cyclones (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
1360122 Centrifugal separators K A SKARDAL 8 May 1972 [21 May 1971] 21342/72 Heading B2P A vortex cleaner for removing impurities from a fibre suspension comprises a toroidal vortex chamber 1, Figs. 4 and and 5, the wall of which is provided with an annular inlet opening 2 for the fibre suspension to be cleaned extending coaxially relative to the axis of symmetry of the vortex chamber and means 3, 7 for feeding the fibre suspension into the chamber through the opening 2 substantially along the entire length thereof and in a direction of flow having a component which is tangential with respect to the cross-section of the chamber 1, the chamber being provided with an internal partition wall 10 having a central opening 11 communicating with a discharge conduit 17 for the accept fraction of the fibre suspension on one side of the wall 10, and the wall of the vortex chamber 1 having a discharge opening 12 for the reject fraction disposed adjacent to, and on the opposite side of, the wall 10. The suspension is introduced through an outlet pipe 3 and is fed by a rotating impeller 7 through the opening 2 so that it forms a helical vortex flow about the circular centre line 9 in the toroidal chamber 1. The accept fraction passing through a vortex finder pipe 18 and the opening 11 in the partition wall 10 enters a space 14, defined between the wall 10 and another inclined partition wall 15 before being discharged through the conduit 17. Alternatively, the conduit 17 may be connected directly to the opening 11. A reject discharge conduit 13 is connected at one end to the opening 12 and at the other end, through a sight glass tube 19 and a T-joint 20, Fig. 7, to a horizontal pipe 21 at one end of which a piston 22 is moved at repeated intervals by a pneumatic cylinder 23 so as to discharge the reject fraction at the other end of the pipe past a weighted or spring loaded flap 25. Back-washing is effected at 26 to prevent any portion of the accept fraction from being entrained with the reject fraction. In a two-stage clearing operation, the reject fraction issuing from a first vortex cleaner of the type described and containing a proportion to maintain the helical flow in the vortex cleaner of the conventional conical type from which an accept fraction is re-circulated to the first vortex cleaner. This can be done by mixing this second accept fraction with the initial fibre suspension supplied to the first vortex cleaner. Alternatively, the second accept fraction is fed through a separate inlet conduit 30, Fig. 6, connected to the first vortex cleaner and communicating with a space 28 formed between the partition wall 15 and an additional wall 27 which is provided with an opening 31 and a pipe 32 projecting axially into the vortex chamber 1. In another embodiment, Fig. 8 (not shown), the vortex is mounted directly in the bottom of a pulper from which fibre suspension is fed to the toroidal vortex chamber by means a rotating impeller. The latter has radial blades on its upper side which serve as agitators in the pulper and also feed the suspension into the vortex chamber. The impeller is also provided with blades on its lower side which serve to maintain the helical flow in the vortex chamber. In a further embodiment, Fig. 9 (not shown), the top (1C) of the vortex chamber is flat instead of conical and the impeller disc (7b) is correspondingly planer. In a still further embodiment, Fig. 10 (not shown), the fibre suspension is supplied through a descending conduit (35) and is fed into the vortex chamber (1) through its annular opening (2) by a propeller (36) which has its shaft (37) journalled in the centre of the chamber and its blades (36a) projecting somewhat into the chamber to assist in maintaining the helical flow therein.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE06600/71A SE352541B (en) | 1971-05-21 | 1971-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1360122A true GB1360122A (en) | 1974-07-17 |
Family
ID=20269116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2134272A Expired GB1360122A (en) | 1971-05-21 | 1972-05-08 | Vortex cleaner |
Country Status (8)
Country | Link |
---|---|
US (1) | US3804244A (en) |
JP (1) | JPS5138802B1 (en) |
CA (1) | CA960611A (en) |
FR (1) | FR2138916B1 (en) |
GB (1) | GB1360122A (en) |
IT (1) | IT957981B (en) |
SE (1) | SE352541B (en) |
SU (1) | SU450418A3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105189861A (en) * | 2013-05-07 | 2015-12-23 | 维美德公司 | An apparatus for separating particles in a pulp suspension |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6811687B2 (en) * | 1999-05-21 | 2004-11-02 | Vortex Holding Company | Vortex pool cleaner |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA477791A (en) * | 1951-10-16 | G:Son Sylvan Stig | Rotary louver separators | |
US1941449A (en) * | 1930-10-02 | 1934-01-02 | American Air Filter Co | Separator |
US2255807A (en) * | 1940-01-26 | 1941-09-16 | Carl H Plumlee | Desilting machine |
BE485667A (en) * | 1947-01-23 | |||
US2651812A (en) * | 1950-08-11 | 1953-09-15 | David G Black | Cotton turbo-cleaner process |
US2864499A (en) * | 1951-09-21 | 1958-12-16 | Skb Schuechtermann & Kremer Ba | Heavy media centrifugal separating apparatus and method |
US2744338A (en) * | 1953-05-07 | 1956-05-08 | Braunschweigische Maschb Nstal | Apparatus for drying friable material |
US2986277A (en) * | 1956-08-13 | 1961-05-30 | Ehlermann Helmuth | Method and means for treating and sorting comminuted substances |
-
1971
- 1971-05-21 SE SE06600/71A patent/SE352541B/xx unknown
-
1972
- 1972-05-08 CA CA141,524A patent/CA960611A/en not_active Expired
- 1972-05-08 GB GB2134272A patent/GB1360122A/en not_active Expired
- 1972-05-17 SU SU1785974A patent/SU450418A3/en active
- 1972-05-18 US US00254468A patent/US3804244A/en not_active Expired - Lifetime
- 1972-05-19 JP JP47049269A patent/JPS5138802B1/ja active Pending
- 1972-05-20 IT IT50389/72A patent/IT957981B/en active
- 1972-05-23 FR FR7218324A patent/FR2138916B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105189861A (en) * | 2013-05-07 | 2015-12-23 | 维美德公司 | An apparatus for separating particles in a pulp suspension |
CN105189861B (en) * | 2013-05-07 | 2017-10-20 | 维美德公司 | Equipment for particle in separating pulp suspensions |
Also Published As
Publication number | Publication date |
---|---|
DE2225005A1 (en) | 1972-11-30 |
US3804244A (en) | 1974-04-16 |
IT957981B (en) | 1973-10-20 |
SE352541B (en) | 1973-01-08 |
DE2225005B2 (en) | 1975-05-22 |
JPS5138802B1 (en) | 1976-10-23 |
FR2138916A1 (en) | 1973-01-05 |
SU450418A3 (en) | 1974-11-15 |
CA960611A (en) | 1975-01-07 |
FR2138916B1 (en) | 1976-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |