EP1833614A1 - Separator comprising a centrifugal drum and a piston valve - Google Patents
Separator comprising a centrifugal drum and a piston valveInfo
- Publication number
- EP1833614A1 EP1833614A1 EP05796058A EP05796058A EP1833614A1 EP 1833614 A1 EP1833614 A1 EP 1833614A1 EP 05796058 A EP05796058 A EP 05796058A EP 05796058 A EP05796058 A EP 05796058A EP 1833614 A1 EP1833614 A1 EP 1833614A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- separator according
- radially
- annular chambers
- piston slide
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
- B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
Definitions
- the invention relates to a separator with a rotatable drum with a vertical axis of rotation, in which preferably a disk package is arranged, and with a piston valve for opening and closing Feststoffaustragsöffhungen in the drum, wherein in the open state of the piston slide a radial gap between the drum, in particular between a drum shell, and the Kolben ⁇ slider is formed.
- Separators with piston valves show DE 38 03 762 A1, DE 102 20 757 A1, DE 44 36 459 C2 and US Pat. No. 5,916,083.
- Separators with nozzle openings show DE 195 27 039 C1 and US 290060.239.
- the invention has the object to reduce these adverse effects.
- At least one annular chamber is formed on both sides of the gap radially in front of the solids discharge openings in the outer peripheral region of the piston slide and the drum, in particular in the drum shell.
- Two radially successive annular chambers are particularly preferably formed in the piston slide and in the upper drum part, the two annular chambers being designed to be symmetrical to the contact surface of the piston slide on the upper drum part in the closed state. Just this design causes significantly optimized flow conditions in the field of Austragsöffhungen.
- the two annular chambers are preferably formed symmetrically to the contact surface of the piston slide on the drum shell.
- the radially inner of the annular chambers is designed as a fan-out chamber for an outgoing solid jet.
- the radially outer of the annular chambers is designed as Verwirbelungs- chamber for the exiting solids jet.
- the invention optimizes the flow conditions in the area in front of the solids discharge openings in a simple manner by optimizing the geometry in the elements connected to the solids discharge openings piston slide and drum (in particular the drum shell), which only a corresponding Be ⁇ processing these elements, but not an extra effort of material.
- the invention can thus be realized in a simple manner and not only minimizes the effect of the erosive phenomena in the region of the solids discharge openings but also reduces the tendency for the formation of deposits. It thus contributes to a high operational readiness of the separator and to a reduction in the need for cleaning, in particular if two annular chambers are provided which follow one another radially and are connected via a constriction.
- FIG. 1 shows a schematic sectional view of a separator
- FIG. 2 shows a detailed view of the region of a solids discharge opening on the drum of the separator with the piston slide open
- FIG. 3 shows the detail view from FIG. 2 with the piston spool closed.
- FIG. 1 shows a schematic sectional view of a separator 1 with a rotatable drum 2 and a single or multi-part, the drum completely or largely um-
- the drum 2 with a vertical drum and rotation axis M has a feed pipe 4, which is guided by way of example from above into the drum.
- the supply pipe 4 is followed by a distributor 5, through which the Schleu ⁇ dergut in the drum 2 can be conducted.
- a plate package 6 is arranged from a plurality of conical plates 7.
- a piston valve 13 is used which, for example in a manner not shown here, can be pneumatically or hydraulically actuated and releases or closes off solids discharge openings 14.
- Fig. 1 is purely illustrative to understand. It does not show the embodiment according to the invention in the area at the solids discharge openings.
- the solids discharge openings 14 are formed as shown in FIG. 2 as holes or slots in the drum base 15, which enforce this from the inside out.
- the Feststoffaustragsötechnischen are evenly distributed on the circumference of the drum base, so that between the Feststoffaustragsötechnischen each webs remain (not visible here).
- the piston valve 13 is in the closed state of the drum 1 on Trommel ⁇ shell 16, preferably at the lower edge of the drum shell 16, a sealing ring 17 is disposed in a groove 18 in the drum shell 16, which in ge closed state (with upwardly moved piston slide 13) between the adjacent surfaces 20, 21 of the piston slide 13 and the upper drum part 16 closes or seals the gap 19 (see in the inventive Aus ⁇ exemplary embodiment according to FIG. 3).
- FIG. 3 While the open state of the spool, in which the gap 19 forms, Fig. 2 reproduces, the closed state is shown in Fig. 3.
- the Spaltbrei ⁇ te S varies in practice u.U. something from opening operation to opening operation. The following conditions therefore relate to a nominal opening position (FIG. 2) which is to be achieved on average with the Kobenschieber.
- a fixed reference plane represents the lower surface 20 of the upper drum part 16, from which the piston slide 13 moves on opening.
- a nozzle-like fan chamber 22 which has a radial extent r3-rl in the average open state, which is more than twice as large as its maximum axial extent or height Hl.
- the axial extent of the constriction 24 is greater than the height or axial extent of the gap 19 in the average open state.
- the maximum axial extent Hl of the fan chamber 22 is smaller in the average opened state, preferably more than 50% smaller than the axial extent H2 of the solids discharge openings 14 in the drum bottom part 15.
- annular chambers then narrow slightly again shortly before the outer radius of the piston slide and then abut axially (relative to the drum axis M) on both sides of the outer edges of the solids discharge openings on the inner circumferential wall of the drum base 15 at the outer radius r4 at the gap between the piston slide Over and the drum base 15 and between the drum shell 16 and the drum base 15th
- solid strikes the inner circumferential wall of the lower drum part 15 at high speed, so that a part of the emerging solids jet is reflected back into the annular chamber 23.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004051264A DE102004051264A1 (en) | 2004-10-21 | 2004-10-21 | Separator with a centrifugal drum and a piston valve |
PCT/EP2005/010158 WO2006045380A1 (en) | 2004-10-21 | 2005-09-21 | Separator comprising a centrifugal drum and a piston valve |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1833614A1 true EP1833614A1 (en) | 2007-09-19 |
Family
ID=35447652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05796058A Withdrawn EP1833614A1 (en) | 2004-10-21 | 2005-09-21 | Separator comprising a centrifugal drum and a piston valve |
Country Status (5)
Country | Link |
---|---|
US (1) | US7354388B2 (en) |
EP (1) | EP1833614A1 (en) |
CN (1) | CN1905945B (en) |
DE (1) | DE102004051264A1 (en) |
WO (1) | WO2006045380A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004051264A1 (en) * | 2004-10-21 | 2006-04-27 | Westfalia Separator Ag | Separator with a centrifugal drum and a piston valve |
CN101733203B (en) * | 2008-11-26 | 2013-03-27 | 威海戥同测试设备有限公司 | Constant density automatic and continuous discharge device of high speed centrifuge and separator |
PL2598252T3 (en) | 2010-07-30 | 2015-07-31 | Gea Mechanical Equipment Gmbh | Separator having a centrifugal drum |
DE102012111801A1 (en) * | 2012-12-05 | 2014-06-05 | Gea Mechanical Equipment Gmbh | Outlet nozzle for a centrifuge drum |
CN114602663B (en) * | 2022-03-23 | 2022-10-14 | 浙江紫东新材料科技有限公司 | Disc centrifuge of fluid barium-zinc composite stabilizer and process thereof |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2060239A (en) * | 1936-11-10 | Centrifuge construction | ||
SE321896B (en) * | 1968-02-29 | 1970-03-16 | Alfa Laval Ab | |
JPS5437964A (en) * | 1977-08-30 | 1979-03-20 | Mitsubishi Kakoki Kk | Centrifugal separator |
DE3117807C1 (en) * | 1981-05-06 | 1983-01-27 | Westfalia Separator Ag, 4740 Oelde | Self-draining centrifugal drum |
DE3133689C1 (en) * | 1981-08-26 | 1983-02-03 | Westfalia Separator Ag, 4740 Oelde | Self-emptying centrifuge drum |
CN1005687B (en) * | 1985-06-19 | 1989-11-08 | 艾尔费拉瓦尔分离技术公司 | Liquid level maintaining system at centrifugal separator |
DE3636034C1 (en) * | 1986-10-23 | 1988-04-07 | Westfalia Separator Ag | Centrifugal drum of a centrifuge for the clarifying and separating of liquid mixtures |
SE456888B (en) * | 1987-02-09 | 1988-11-14 | Alfa Laval Separation Ab | CENTRIFUGAL SEPARATOR, FOR INTERMITTENT TEMPERATURE OF A SEPARATED COMPONENT WHICH IS EXCELLENT THAT ONE OF THE TWO ROOT PARTS INCLUDES TWO SEPARATE COAXIAL WALLS, AN INTERNAL AND OUTER |
DE4436459C2 (en) * | 1994-10-12 | 1997-04-24 | Flottweg Gmbh | Centrifugal drum |
DE19527039C5 (en) * | 1995-07-25 | 2004-02-26 | Westfalia Separator Ag | Outlet nozzle for centrifuge drums |
SE505385C2 (en) * | 1995-11-17 | 1997-08-18 | Alfa Laval Ab | Rotor for a centrifugal separator |
SE520744C2 (en) * | 1999-03-08 | 2003-08-19 | Alfa Laval Corp Ab | Method and apparatus for indicating an undesirable operating condition at a centrifugal separator |
DE10220757B4 (en) * | 2002-05-08 | 2004-06-24 | Westfalia Separator Ag | Centrifuge, especially separator |
DE10233807B3 (en) * | 2002-07-25 | 2004-02-12 | Westfalia Separator Ag | Separator with self-draining centrifugal drum |
DE102004051264A1 (en) * | 2004-10-21 | 2006-04-27 | Westfalia Separator Ag | Separator with a centrifugal drum and a piston valve |
-
2004
- 2004-10-21 DE DE102004051264A patent/DE102004051264A1/en not_active Withdrawn
-
2005
- 2005-09-21 US US10/581,894 patent/US7354388B2/en not_active Expired - Fee Related
- 2005-09-21 CN CN2005800014573A patent/CN1905945B/en not_active Expired - Fee Related
- 2005-09-21 WO PCT/EP2005/010158 patent/WO2006045380A1/en active Application Filing
- 2005-09-21 EP EP05796058A patent/EP1833614A1/en not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2006045380A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006045380A1 (en) | 2006-05-04 |
CN1905945B (en) | 2010-06-16 |
WO2006045380A8 (en) | 2006-09-14 |
US7354388B2 (en) | 2008-04-08 |
US20070135289A1 (en) | 2007-06-14 |
CN1905945A (en) | 2007-01-31 |
DE102004051264A1 (en) | 2006-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20060426 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE IT SE |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHULZ, ANDREAS Inventor name: MACKEL, WILFRIED |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE IT SE |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WESTFALIA SEPARATOR GMBH |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GEA WESTFALIA SEPARATOR GMBH |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GEA MECHANICAL EQUIPMENT GMBH |
|
17Q | First examination report despatched |
Effective date: 20161122 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170920 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20180131 |