EP3720611A1 - Separatortrommel - Google Patents
SeparatortrommelInfo
- Publication number
- EP3720611A1 EP3720611A1 EP18819007.8A EP18819007A EP3720611A1 EP 3720611 A1 EP3720611 A1 EP 3720611A1 EP 18819007 A EP18819007 A EP 18819007A EP 3720611 A1 EP3720611 A1 EP 3720611A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- closing
- drum
- closing chamber
- outflow channel
- rch
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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 drum with a hydraulically actuated, axially movable piston slide which can seal a solids space against at least one solids outlet, wherein the piston valve can be held in its closed position via a closing chamber which can be filled with closing fluid, in particular closing water, the closing chamber being located between an underside of the closing chamber Piston slide and a top of a Trommeluntertei ls is formed, according to claim 1.
- Separator drums known to have control systems with chambers that receive the entire closing liquid at a full emptying and at
- the opening and closing of a separator drum is based on moving a piston valve up and down.
- the spool is part of a hydraulically controlled system.
- the up and down movement of the piston valve is achieved by different pressure conditions, the different pressure conditions from different levels of the mirror liquid in the closing chamber of the drum during the
- Closing chamber is lowered, the spool falls down so that the separator drum is opened. A solids outlet of the solids space is released by movement of the piston slide down.
- Dl virtual diameter
- the piston valve In order to achieve a quick emptying or partial emptying of the separator drum, the piston valve must then be quickly moved back up after release of the solids outlet. The movement of the piston valve depends, among other things, on how fast so-called
- Drum valves can be closed again. To open drum valves, a certain opening liquid level is necessary. This
- Liquid level is within holes or channels of a
- the diameter at which there is equilibrium between an open drum valve and a closed drum valve in normal operation is also approximately in the range of the diameter Dl.
- Dl diameter of the diameter of the diameter
- the object of the present invention is to provide a separator drum with an opening system, wherein the partial emptying of the separator drum in a shorter time to be carried out. Furthermore, it should be possible with the same separator drum and a full emptying.
- a separator drum with a hydraulically actuated, axially movable piston slide which can seal a solids space against at least one solids outlet, the piston valve via a closing liquid, in particular closing water, fillable lock chamber is preserved in its closed position, wherein the closing chamber between a Bottom of the piston valve and an upper side of a drum base is formed.
- the closing chamber has a first closing chamber section close to the rotation axis and a second closing chamber section remote from the rotation axis, wherein the first closing chamber section is formed by two mutually parallel sections of the lower side of the piston slide and the upper side of the drum lower part, and the second
- Closing chamber section at least partially has a conical cross-section.
- the axis of rotation relates to the axis of rotation of the separator drum.
- the first closing chamber portion is a closing chamber portion located further inward in relation to the second closing chamber portion.
- the second closing chamber portion is a closing chamber portion located farther outward in relation to the first closing chamber portion.
- the lock chamber has at least two
- Closing chamber portion is the portion of the closing chamber, which is arranged closer to the rotational axis of the separator drum.
- Closing chamber portion is the portion of the closing chamber, which of the Rotary axis of the separator drum is arranged more remote.
- the first closing chamber section preferably adjoins the second closing chamber section.
- the first closing chamber section is parallel to each other by two
- the first closing chamber section in cross section at a constant distance. The distance, when closed
- Separator drum, d. H. is present at a closed position of the piston valve, it is relatively low.
- the distance is preferably 0.5 mm to 5.0 mm.
- the first closing chamber section is formed, in particular, in that the corresponding section of the underside of the piston slide is designed to be complementary to the corresponding section of the upper side of the drum lower part.
- the second closing chamber section has, at least in sections, a conical cross section.
- a conical cross section is such
- a second closing chamber section can be formed with an increased chamber volume compared to a cross-section, which is formed due to a constant distance between the underside of the piston valve and the upper side of the drum base.
- the second closing chamber portion is formed by two angularly arranged to each other portion of the underside of the piston valve and the top of the drum base.
- Piston slide and the top of the drum base preferably close an angle of 10 ° - 45 °, in particular from 15 ° - 40 °, in particular from 17 ° - 35 °, in particular from 18 ° - 30 °, in particular from 19 ° - 25 °, in particular from 20 °, a.
- the conical cross section is preferably formed such that the portion with a smaller cross section points in the direction of the first closing chamber section.
- Cross section preferably adjoins the first closing chamber section.
- the underside of the piston slide and the top of the
- Drum lower parts in this area not parallel to each other, but at an angle to each other.
- the ratio of the closing liquid volume in the first closing chamber section to the closing liquid volume in the second closing chamber section is preferably from 1: 5 to 1:15, in particular 1:10.
- the separator drum in particular the closing chamber, is designed in such a way that the closing fluid portion, which is smaller than the virtual diameter D 1, is relatively small.
- a small amount of closing fluid in the range of the virtual diameter Dl has a positive effect on the speed of the
- Closing liquid level in the first closing chamber portion very quickly exceed the virtual diameter Dl to the outside.
- the first closing chamber section is preferably formed in the region of the virtual diameter D 1.
- the virtual diameter Dl is, as already mentioned, the virtual diameter at which a mathematically equilibrium exists between the opening force through the drum filling and the closing force through the closing fluid in the closing chamber. Alternatively, it is possible that the transition region from the first
- Closing chamber portion is formed to the second closing chamber portion in the region of the virtual diameter Dl.
- the virtual diameter Dl is formed approximately in the center of the first closing chamber section.
- the closing fluid portion which is larger than the diameter Dl is relatively large. This is due to the conical cross section of the second
- the separator drum has at least one drum valve.
- the separator drum comprises at least two drum valves.
- the number of drum valves can be both even and odd.
- a drum valve is used to drain closing fluid. Between the first closing chamber section and the at least one drum valve, a first outflow channel is formed. Between the second closing chamber portion and the at least one drum valve, a second outflow channel is formed.
- the inner diameter of the first outflow channel is greater than the inner diameter of the second outflow channel.
- the closing fluid contained in the closing chamber can be passed to a drum valve due to the two outflow channels.
- the closing fluid can be formed separately due to two
- Outflow channels are drained in the direction of the drum valve.
- a nozzle is preferably formed in the second outflow channel.
- This second outflow channel is the channel with less
- the second outflow channel may have an inner diameter of 0.5 mm - 5.0 mm.
- Closing fluid amount of the first closing chamber portion via the first outflow with a relatively large inner diameter can be forwarded directly to at least one drum valve and then extremely fast on the at least one drum valve from the rotating
- Separator drum can be drained. Because of this, the spool can be moved extremely quickly to the bottom. The relatively large amount of closing fluid, which in the second
- Closing chamber section is, at the same time on the second
- Outflow channel having a relatively small inner diameter passed to the at least one drum valve.
- the outflow of the closing liquid is delayed such that the at least one opened drum valve is already closed again before the complete discharge or outflow of the closing liquid.
- Closing fluid fills the outflowing or drained closing water or the closing fluid, at the same time again.
- the spool valve which is in the lowest position during the emptying process is pressed upward again after a relatively short time, so that the separator drum is closed again.
- the solids outlet of the solids space can be re-sealed due to the piston slide pushed upwards.
- a complete or too long drainage of the closing liquid is prevented due to the formation of two closing chamber sections and the associated formation of two outflow.
- Inner diameter of the second outflow channel is preferably 1: 3 to 1:15.
- An opening of the second outflow channel is preferably formed in the region or in the vicinity of the largest diameter of the closing chamber. This makes it possible that the largest proportion of the closing liquid located in the first closing chamber section flows out through the first outflow channel and the closing liquid located in the second closing chamber section likewise flows out, in particular simultaneously.
- the second outflow channel is formed perpendicular to the first outflow channel. In other words, the two outflow channels are arranged at right angles to each other.
- the second outflow channel is formed in the vertical direction.
- the first outflow channel is preferably formed in the horizontal direction.
- the second closing chamber portion preferably ends in an outer portion having a horizontal end surface.
- the second outflow channel is formed perpendicular to this horizontal end surface.
- the opening of the second outflow channel is preferably formed in the horizontal end surface.
- Outflow channels are formed obliquely to each other.
- the outflow diameter of the first closing chamber section may be greater than or equal to the virtual diameter.
- the measure of the outflow diameter of the first closing chamber section can be greater than the measure of the virtual diameter.
- a separator drum Due to the formation of the separator drum according to the invention, a separator drum is provided whose opening times of the
- Spool valve is shortened compared to the prior art. Furthermore, the switching times of the drum valve of the separator drum can be shortened.
- FIG. 1 shows a cross section through a separator drum according to the invention
- FIG. 2 is an enlarged view of the area around the closing chamber according to a first embodiment of the invention
- FIG. and Fig. 3 is an enlarged view of the area around the closing chamber according to a second embodiment of the invention.
- separator drum 10 It is a separator drum 10 is shown. This has a central inlet 11 for a solid-liquid mixture to be separated, via which the solid-liquid mixture passes into a centrifugal chamber 12.
- Centrifugal space 12 is composed of a separation space 13 and a solids space
- the solids space 14 is formed as a double cone au and limited in its lower part by a piston valve 20.
- the separator drum 10 is closed in its upper region with a drum cover 16, which by a closure ring 17 with a drum base
- Fig. 1 is the
- Piston slide 20 shown in the open position.
- the outlet 18 is
- the piston valve 20 is hydraulically actuated.
- a closing chamber 30 is formed, which can be filled with a closing liquid, in particular with closed water. Due to the level formed in the closing chamber 30, the spool valve 20 can be actuated.
- the closing chamber 30 is between the bottom 21 of the spool 20 and the top 35 of the
- the closing chamber 30 has a first close to the rotation axis R first
- the first closing chamber section 31 is formed by two mutually parallel sections (22, 36) of the underside 21 of the piston slide 20 and the upper side 35 of the drum base 15.
- the second closing chamber section 32 has, at least in sections, a conical cross section.
- This conical cross section can be seen in Fig. 1, in which the spool 20 is in an open position. Even with a closed position of the spool 20, this conical cross section is maintained.
- the conical cross section is formed such that the dimension of the cross section decreases in the direction of the first closing chamber section 31.
- the second closing chamber portion 32 adjoins the first closing chamber portion 31.
- the second closing chamber section 32 further has an outer section 33 with a horizontal end surface 34.
- the second closing chamber portion 32 is formed by two angularly arranged portions.
- Piston slide 20 and the portion 37 of the top 35 of the drum base 15 is formed.
- the two angularly disposed portions 23 and 37 of the bottom 21 of the spool 20 and the top 35 of the drum base 15 include an angle a of in particular 20 ° (see Fig. 2).
- Fig. 2 the closing chamber 30 and an associated drum valve 40 is shown enlarged according to a first embodiment.
- the spool 20 is shown in a slightly raised position. It can be seen that the closing chamber 30 in particular from the two
- Separator drum 10, in particular the closing chamber 30, is formed such that the virtual diameter Dl in the region of the first
- Closing chamber portion 31 is formed.
- the virtual diameter Dl is formed approximately in the center of the first closing chamber section 31.
- the separator drum 10 is closed if the closing liquid level is smaller than D1. If the liquid level is greater than Dl, the separator drum 10 is opened.
- Closing chamber portion 32 has a relatively large volume is the
- a drum valve 40 of the separator drum 10 can be seen. Between the first closing chamber section 31 and the drum valve 40, a first outflow channel 41 is formed. Between the second
- a second outflow channel 42 is formed.
- the second outflow channel 42 is formed substantially perpendicular to the first outflow channel 41.
- the inner diameter D3 of the first outflow channel 41 is greater than the inner diameter D2 of the second outflow channel 42.
- the second outflow channel 42 has in particular an inner diameter D2 of 1.5 mm.
- the opening 43 of the second outflow channel 42 is formed in the region of the largest diameter of the closing chamber 30. In particular, the opening 43 is formed in the horizontal end surface 34.
- the diameter D4 ie the
- Inner diameter D3 are passed directly to the drum valve 40. This proportion of the closing fluid can be discharged from the rotating separator drum 10 very quickly via this drum valve 40. Due to this, the spool 20 is moved down very quickly.
- this second outflow channel 42 has a relatively small inner diameter D 2. Due to this, the outflow of the downstream flows is delayed
- a nozzle 44 is also formed in the second outflow channel 42.
- Closing fluid fills the drained closing fluid at the same time again.
- the spool valve 20 which is located in the lowest position during the emptying process can thus be pushed upwards again after a relatively short time, in order subsequently to close the separator drum 10 or the outlet 18 again.
- the drum valve 40 is operatively connected to an orifice fluid system in a known manner. For this purpose, an opening liquid channel 45 is formed.
- FIG. 3 the closing chamber 30 and an associated drum valve 40 is shown enlarged according to a second embodiment.
- the spool valve 20 is shown in a slightly raised position. It can be seen that the closing chamber 30 in particular from the two
- the embodiment of Fig. 3 differs from the embodiment of Fig. 2 initially in that the diameter D4, i. the
- Outflow diameter of the first closing chamber portion 31 is (approximately) equal to the virtual diameter Dl.
- the first outflow channel 41 in this context has two sections, namely a first vertical section and a second inclined section.
- the first vertical section begins in an opening of the upper side 35 of the drum base 15 and opens into the second oblique section.
- the second inclined section in turn opens in the drum valve 40.
- first outflow channel 41 and the second outflow channel 42 are inclined relative to one another, i. not perpendicular to each other, run.
Landscapes
- Centrifugal Separators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017128867 | 2017-12-05 | ||
DE102018104700.2A DE102018104700A1 (de) | 2017-12-05 | 2018-03-01 | Separatortrommel |
PCT/EP2018/083267 WO2019110465A1 (de) | 2017-12-05 | 2018-12-03 | Separatortrommel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3720611A1 true EP3720611A1 (de) | 2020-10-14 |
EP3720611B1 EP3720611B1 (de) | 2024-02-28 |
Family
ID=66547815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18819007.8A Active EP3720611B1 (de) | 2017-12-05 | 2018-12-03 | Separatortrommel |
Country Status (5)
Country | Link |
---|---|
US (1) | US11541402B2 (de) |
EP (1) | EP3720611B1 (de) |
DE (1) | DE102018104700A1 (de) |
DK (1) | DK3720611T3 (de) |
WO (1) | WO2019110465A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS521761A (en) | 1975-06-24 | 1977-01-07 | Nittetsu Mining Co Ltd | Device of joining and supporting centrifugal separatohousing of a cent rifugal separator |
DE3117807C1 (de) | 1981-05-06 | 1983-01-27 | Westfalia Separator Ag, 4740 Oelde | Selbstentleerende Schleudertrommel |
SE444652B (sv) | 1984-09-06 | 1986-04-28 | Alfa Laval Separation Ab | Manoversystem for centrifugalseparator |
EP2774684B1 (de) | 2013-03-06 | 2018-10-17 | Alfa Laval Corporate AB | Zentrifugalabscheider |
-
2018
- 2018-03-01 DE DE102018104700.2A patent/DE102018104700A1/de active Pending
- 2018-12-03 WO PCT/EP2018/083267 patent/WO2019110465A1/de unknown
- 2018-12-03 DK DK18819007.8T patent/DK3720611T3/da active
- 2018-12-03 EP EP18819007.8A patent/EP3720611B1/de active Active
- 2018-12-03 US US16/763,960 patent/US11541402B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
DK3720611T3 (da) | 2024-05-21 |
DE102018104700A1 (de) | 2019-06-06 |
WO2019110465A1 (de) | 2019-06-13 |
US11541402B2 (en) | 2023-01-03 |
EP3720611B1 (de) | 2024-02-28 |
US20200391226A1 (en) | 2020-12-17 |
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