EP2566610A1 - Verfahren zur zumischung einer flüssigen chemikalie zu einem prozessstrom und vorrichtung - Google Patents
Verfahren zur zumischung einer flüssigen chemikalie zu einem prozessstrom und vorrichtungInfo
- Publication number
- EP2566610A1 EP2566610A1 EP11715511A EP11715511A EP2566610A1 EP 2566610 A1 EP2566610 A1 EP 2566610A1 EP 11715511 A EP11715511 A EP 11715511A EP 11715511 A EP11715511 A EP 11715511A EP 2566610 A1 EP2566610 A1 EP 2566610A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- mixing
- mixing device
- flow
- stream
- 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 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 119
- 239000000126 substance Substances 0.000 title claims abstract description 94
- 238000002156 mixing Methods 0.000 claims abstract description 130
- 238000004140 cleaning Methods 0.000 claims abstract description 56
- 239000012530 fluid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims 1
- 239000013505 freshwater Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 8
- 229920000962 poly(amidoamine) Polymers 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 229920002873 Polyethylenimine Polymers 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000003139 biocide Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- -1 Alkenyl succinic anhydride Chemical compound 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012897 dilution medium Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/11—Maintenance of mixers using fluids
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/20—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
- B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
- B01F35/1453—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids by means of jets of fluid, e.g. air
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
Definitions
- the invention relates to a method for admixing a liquid chemical to a process stream by means of a mixing device and to a device for admixing a liquid chemical to a process stream and a
- Chemical feed system comprising such a device.
- Dilution medium can be reduced in the treatment of chemicals to a considerable extent.
- EP-A-2 9 344 a method for admixing a liquid chemical in a process liquid stream in which the chemical and a second liquid are substantially brought into communication with each other when chemical and second liquid are introduced from a mixer nozzle at high speed into a process stream.
- EP-A-1 064 427 describes a method and an apparatus for the
- WO-A-2005/32704 discloses a method and apparatus for supplying a chemical into a liquid stream, wherein the chemical is incorporated in the
- Mixing device in particular the nozzle itself arise.
- the formation of such deposits is critical, since the cross sections of the channels are small and even small deposits due to the small cross sections can significantly influence the interference of the chemical, for example in a process stream.
- the object of the invention is therefore to avoid the disadvantages of the prior art.
- this object is achieved in that in a method for mixing a liquid chemical to a process stream by means of a mixing device, a mixing step is provided and a cleaning step, wherein in the mixing step, a liquid chemical is supplied to the process stream and in the cleaning step, the mixing device of the Process stream is separated, such that the mixing device can be cleaned independently of the process stream.
- a mixing step is provided and a cleaning step, wherein in the mixing step, a liquid chemical is supplied to the process stream and in the cleaning step, the mixing device of the Process stream is separated, such that the mixing device can be cleaned independently of the process stream.
- Blending device created so that deposits in the supply lines and also in the mixing device can be flushed out even at a standstill of the machine. This makes it even with small cross-sections of the supply lines or the nozzles in the mixing device no longer
- the chemicals to be metered are, in particular, polymers, for example adhesives, which are used in the papermaking process
- Process stream are added. Examples of such chemicals or
- Polymers are polyacrylamide (PAM), polyethylenimine (PEI), polyamidoamine
- the dosing chemicals may also be microparticles or nanoparticles,
- the chemicals to be dosed may be starch or a biocide or a dye or an optical brightener.
- Other possible chemicals are
- Circulating liquid white water, clear filtrate, turbid filtrate or other suitable non-pure liquid which is obtained in the papermaking process, be.
- the process stream is preferably a pulp suspension flowing to a paper machine, with which the supplied chemical, in particular the retention chemical, should react.
- the liquid chemical is provided in a first liquid stream and the second liquid in a second liquid stream in the mixing device.
- the mixing device from which the first liquid stream and the second liquid stream are derived, may be configured such that the first liquid stream emerges from the mixing device substantially simultaneously and with the second liquid stream.
- Mixing device is designed such that the first liquid stream emerges from the mixing device substantially before the second liquid stream or the first liquid stream substantially after the second
- the separation of the mixing device from the process stream which leads to an independent cleaning of the mixing device from the process stream, is achieved, for example, in that the mixing device of a
- Receiving device is received, wherein the mixing device is arranged in the receiving device in the cleaning step such that a cleaning chamber is formed.
- the cleaning chamber can
- Cleaning liquid such as fresh water
- the supply lines and the nozzles are introduced into the first and the second liquid stream of the mixing device is rinsed.
- Mixing device and the feeders are cleaned of these deposits and so clogging of the mixing device and the feeders through
- the mixing chamber simultaneously also represents the cleaning chamber.
- the mixing device directly above the process stream z. B. are arranged in a receiving device, it is advantageous if the mixing device in the receiving device for the formation of
- Cleaning chamber is designed to be displaceable. To clean the
- the mixing device in the receiving device then moved away from the process stream, for example by means of manual, pneumatic, hydraulic or electromotive devices.
- a cleaning chamber is provided.
- a sleeve To guide the mixing device in the receiving device may be provided a sleeve.
- a slide can be integrated in the receiving device, which can be manually, pneumatically, or by electric motor is moved hydraulically in the receiving device. If the slider is spent over the complete cross section of the receiving device, then the
- the invention also provides an apparatus for adding a liquid chemical to a process stream.
- the device according to the invention comprises a receiving housing and a first flow channel for supplying the liquid chemical to the process stream.
- the device is characterized in that the receptacle, in particular the
- Receiving housing is designed such that a cleaning chamber is provided at least for cleaning a first flow channel.
- the liquid chemical is supplied to the process stream via the first flow channel.
- the mixing device preferably also comprises at least one second flow channel for supplying a second liquid to the process stream.
- the second flow channel through which, for example, fresh water or water from circulation processes in one
- Paper machine can be fed, preferably flows into the
- Cleaning chamber and can be separated from the process stream.
- An embodiment with a third flow channel for guiding a third liquid is possible.
- correspondingly small line cross sections are selected at the feed lines of the fluid chemicals, so that flow rates in the range of 0, 05 to 20 m / sec, preferably in the range of 0.1 to 10 m / sec and especially in the range of 0.1 to 5 m / sec can be achieved.
- the mixing device is designed such that in a mixing step, the first and the second liquid stream in
- first and from the second flow channel Essentially emerge simultaneously from the first and from the second flow channel.
- first liquid flow emerges from the first or second flow channel substantially before the second liquid flow.
- the mixing device may be such that the first liquid flow emerges from the first and second flow channels substantially after the second liquid flow.
- the mixing device In order, for example, to bring the mixing device very close to the process stream and to move away from it, provision can be made for the mixing device to be displaceable within the receptacle.
- the invention also sets
- the chemical feed system is characterized in that the means for feeding the chemicals into the process stream comprise a mixing device according to the invention.
- the device is connected via a pipe to the Siebwasseritatisstoff to use the white water as a second liquid.
- a metering nozzle according to the invention in a first embodiment with a receptacle; a further embodiment of a metering nozzle according to the invention with a receptacle; a metering nozzle according to the invention with integrated
- FIG. 1 shows a mixing device 10 according to the invention, comprising a first flow channel 12, in which, for example, the chemical to be supplied can be introduced, and a second flow channel 14, which surrounds the first flow channel annular and in which a second liquid,
- the device further comprises a third flow channel.
- This third flow channel is optional and not necessary.
- the device would also be the invention
- the third flow channel in turn surrounds the second flow channel annularly.
- the mixing device 10 with the first, second and third flow channels is guided, for example displaceably in the axial direction 22 in a receiving device 20.
- the mixing device 10 may, but need not be arranged axially displaceable or adjustable in the receiving device.
- the diameters or the dimensions of the line cross-sections d1, d2, d3 of the first, second and third flow channels 12, 14, 16 are chosen such that high flow velocities of the liquid streams conducted in the flow channels occur.
- the dimensions or the dimensions of the line cross-sections d1, d2, d3 of the first, second and third flow channels 12, 14, 16 are chosen such that high flow velocities of the liquid streams conducted in the flow channels occur.
- the dimensions or the dimensions of the line cross-sections d1, d2, d3 of the first, second and third flow channels 12, 14, 16 are chosen such that high flow velocities of the liquid streams conducted in the flow channels occur.
- the dimensions or the dimensions of the line cross-sections d1, d2, d3 of the first, second and third flow channels 12, 14, 16 are chosen such that high flow velocities of the liquid streams conducted in the flow channels occur.
- Diameter chosen such that the flow rates in the range 0.05 to 20 m / sec, preferably in the range 0.1 to 10 m / sec, most preferably 0.1 to 5 m / sec.
- Such a conical inlet can also for the first flow channel 12 in the region of the outlet, i. in the area 22, be provided.
- the opening 40 from which, for example, the chemical to be metered can emerge from the first flow channel it is possible to provide the first flow channel in the side wall with holes 42 from which the chemical exits.
- the limit of the process flow is denoted by 100.
- the flow direction of the process stream is indicated by 0.
- the flow of chemicals is introduced directly into the process stream, as well as the guided through the second flow channel second liquid stream or introduced through the third liquid channel third liquid stream is introduced directly into the process stream.
- Liquid flow substantially end at the same height, the entry of the second and third liquid flow in the process stream is substantially simultaneously.
- the supply of the liquid streams from the mixing device 10 in the process stream is substantially transverse to
- Process stream made.
- the supply of the chemical stream via the first flow channel and, for example, that of fresh water, the second flow channel, is not mandatory, but merely to be understood as an example.
- the flow channels can also be occupied differently.
- FIG. 2 shows a variant of the embodiment according to FIG. 1. Identical components are designated by the same reference numerals. The difference of the embodiment according to FIG. 2 in contrast to the embodiment according to FIG. 1 can be seen in the embodiment of the partition wall of the second supply line or the second flow channel.
- the second supply line has an upper portion 34, a tapered narrowed central portion 24 and thereafter a
- End portion 54 which does not taper conically, but is designed so that the supply of the second liquid is carried into the process flow into it.
- End portion 54 can be varied in its length, so that it can be adjusted whether the second flow channel supplied by the second
- Flow channel 12 supplied chemical stream or first liquid flow emerges.
- polymers for example adhesives, which are added to the process stream in the papermaking process can be used as the chemical stream via the first flow channel.
- chemicals or polymers are polyacrylamide (PAM), polyethylenimine (PEI), polyamidoamine (PAAm), crosslinkable
- Polyamidoamine resins polydadmac, polyvinylamine (PVAm), polyethylene oxide (PEO).
- PVAm polyvinylamine
- PEO polyethylene oxide
- Chemicals may also be microparticles or nanoparticles, for example bentonide or a silicate. Further, the chemicals to be dosed may be starch or a biocide or a dye or an optical brightener. Other possible chemicals are neutral size such.
- AKD Acrylketendimer
- ASA alkenylsuccinic anhydride
- FIGS. 3 and 4 show a device according to the invention, in which a mixing device as shown in FIG. 1 is used again. Identical components in FIGS. 3 and 4 are again assigned the same reference numerals as in FIG.
- the embodiment according to FIGS. 3 and 4 is a device according to the invention, in which the mixing device 10 is designed to be movable within a receiving housing 20 or a receptacle in the axial direction 22.
- Receiving device 20 a gate valve 200.
- the gate valve 200 is designed to be movable in the direction 202.
- Dosing nozzle is guided in Fig. 3 by the open gate valve. In the embodiment shown in FIG. 3 too, the merging of the second liquid guided through the second flow channel 14 takes place
- Fig. 5 now shows the introduction of the slider 200 over the entire
- the closed gate valve 200 is the
- Mixing device 0 according to the invention separated from the process stream. Between the mixing device 10 and the gate valve, a cleaning chamber 300 is formed.
- FIG. 6 it is shown how with a separate cleaning chamber 300 the
- Mixing device or metering can be cleaned independently of the process stream 100. As shown in Fig. 6, for example, in the first
- fresh water is thus supplied via the first flow channel 12.
- the fresh water impinges on the shut-off device 200 and is guided into the other two flow channels 4 and 16. This media that are in these flow channels or
- Feeds are contained by the fresh water or the fluid
- the nozzles and the feeders, in particular the mixing device can, by such a cleaning step, as shown in Fig. 6, of the chemicals therein, in particular their
- FIGS. 7a to 71 have in common that, when the mixing device 10 is not designed to be displaceable but fixed in the drawn position, in addition to the cleaning space 300 (not shown) when the gate valve is closed, it is in all cases Cleaning chamber 300 is also simultaneously mixing space and the example of the first flow channel 2 supplied chemical and the second flow channel 14 exiting second liquid in or before this
- a premixing space 400 is formed within the mixing device 10 in addition to the mixing space, which is at the same time the cleaning space 300.
- the chemical supplied for example, in the embodiment in FIGS. 7a and 7b through the first flow channel 12, is premixed in the premixing chamber 400 with the second liquid supplied through the second flow channel 14 or with the third through the third flow channel before they enter the cleaning space Enter mixing chamber 300 and finally passed to the process stream 100.
- gate valve 200 is movably formed. While in the embodiment according to the figures 7a and 7b from the first
- FIGS. 7c to 7d only the liquid emerging from the second flow channel 14 is premixed with the liquid emerging from the third flow channel 16.
- the embodiment according to FIGS. 7 e to 7 f is characterized in that the chemical emerging from the first flow channel 12 emerges in front of the second liquid and insofar as a pre-pre-mixing space 500 is formed, in which the chemical mixes with the second liquid, before in Vormischraum 400 the
- FIGS. 8a and 8b embodiments of the mixing device connected to a process flow line 500 are shown.
- the device shown in FIG. 8 a comprises a receptacle 20, a mixing device 10 which can be moved inside the receptacle 20 and which is designed as a nozzle, as shown for example in FIGS. 1 to 71.
- the receptacle 20 is connected to a process flow line 500, in which a process stream is guided.
- the mixing device is movable in the direction 22, for example by means of cylinder 502. Die
- Mixing device 10 is connected to three supply lines 512, 514, 516, each terminating in the first flow channel 12, in the second flow channel 14 and in the third flow channel 16 of the mixing device.
- the gate valve (not shown) is opened and the nozzles or ends of the flow channels of the mixing device protrude into the process stream.
- FIG. 9a and 9b show schematically a line diagram with supply lines for the chemical stream 1000, the second liquid 1100 and the third Fluid 1300.
- the second fluid is called the mixed flow
- the third fluid is the injection flow.
- Lines 1400, 1410 of the cleaning fluid which is used only when the gate valve is closed.
- line 1 100 is a control valve 1010, in the line 1000, a control valve 1 1 10 and in the line 1300 a control valve 1330 introduced.
- the cleaning fluid can be supplied via line 1400 or via line 4 0 of the Chemikalienstromzuschreibtechnisch 1000 and the supply line for the second liquid 1 100.
- these valves are blocked at points 2000.1 and 2000.2, respectively, as shown in FIG. 9a.
- the cleaning of the nozzle can be done independently of the running process and nozzle and feeds can be maintained independently of the process and dismantled if necessary.
- the performance of the nozzle does not change even during prolonged permanent operation of the metering device, in particular, the interference of chemicals in the deteriorated
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010028572A DE102010028572A1 (de) | 2010-05-05 | 2010-05-05 | Verfahren zur Zumischung einer flüssigen Chemikalie zu einem Prozessstrom und Vorrichtung |
| PCT/EP2011/056082 WO2011138158A1 (de) | 2010-05-05 | 2011-04-18 | Verfahren zur zumischung einer flüssigen chemikalie zu einem prozessstrom und vorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2566610A1 true EP2566610A1 (de) | 2013-03-13 |
| EP2566610B1 EP2566610B1 (de) | 2014-10-29 |
Family
ID=44259740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11715511.9A Not-in-force EP2566610B1 (de) | 2010-05-05 | 2011-04-18 | Verfahren zur zumischung einer flüssigen chemikalie zu einem prozessstrom und vorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2566610B1 (de) |
| CN (1) | CN102971067B (de) |
| DE (1) | DE102010028572A1 (de) |
| WO (1) | WO2011138158A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011017535B4 (de) | 2011-04-26 | 2026-03-05 | Endress+Hauser Conducta Gmbh+Co. Kg | Sondeneinrichtung mit einer in einem Tauchrohr aufgenommenen Messsonde, wobei das Tauchrohr zwischen einer Messstellung und einer Behandlungsstellung axial verschiebbar gelagert ist |
| DE102011080579A1 (de) | 2011-08-08 | 2013-02-28 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Wechselarmatur |
| WO2016015991A1 (de) | 2014-07-29 | 2016-02-04 | Voith Patent Gmbh | Verfahren und vorrichtung zur dosierung und einmischung wenigstens eines fluiden mediums in einen prozessstrom |
| DE102015217814A1 (de) * | 2015-09-17 | 2017-03-23 | Rwe Deutschland Ag | Vorrichtung zur Einspeisung eines flüssigen Odoriermittels in ein Gasnetz |
| CN113355951B (zh) * | 2021-06-03 | 2022-09-06 | 成都硕屋科技有限公司 | 一种无石棉的复合硅酸盐保温毡生产系统及其方法 |
| DE202021002842U1 (de) | 2021-09-02 | 2022-01-19 | IAB-Institut für Angewandte Bauforschung Weimar gemeinnützige GmbH | Vorrichtung zur schonenden Homogenisierung zweier getrennt erzeugter Schäume zu einem Schaum |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1251774B (it) * | 1991-11-07 | 1995-05-24 | Sio Srl | Dispositivo inintasabile e ripulibile per l'iniezione di gas in contenitori di o condotti per un liquido contenente impurita' o corpi estranei quali vasche di depurazione, condotti fognari o similari |
| FI108802B (fi) | 1998-02-26 | 2002-03-28 | Wetend Technologies Oy | Menetelmä ja laite kemikaalin syöttämiseksi nestevirtaan sekä paperikoneen syöttöjärjestelmä |
| SE512503C2 (sv) * | 1998-05-11 | 2000-03-27 | Arom Pak Ab | Dosermunstycke för kontinuerlig injicering av en mindre mängd steril, sekundär vätska i en fritt strömmande steril, primär vätska samt sätt att använda dosermunstycket |
| DE10160749A1 (de) | 2001-12-11 | 2003-06-12 | Siemens Ag | Anzeigevorrichtung mit mindestens einem in deren frontseitigem Gehäuseteil angeordneten Zeigerinstrument |
| FI115148B (fi) | 2003-10-08 | 2005-03-15 | Wetend Technologies Oy | Menetelmä ja laite kemikaalin syöttämiseksi nestevirtaan |
| FI123249B (fi) * | 2004-07-15 | 2013-01-15 | Wetend Technologies Oy | Menetelmä ja laitteisto kemikaalin syöttämiseksi nestevirtaan |
-
2010
- 2010-05-05 DE DE102010028572A patent/DE102010028572A1/de not_active Withdrawn
-
2011
- 2011-04-18 EP EP11715511.9A patent/EP2566610B1/de not_active Not-in-force
- 2011-04-18 CN CN201180033358.9A patent/CN102971067B/zh not_active Expired - Fee Related
- 2011-04-18 WO PCT/EP2011/056082 patent/WO2011138158A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011138158A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010028572A1 (de) | 2011-11-10 |
| EP2566610B1 (de) | 2014-10-29 |
| CN102971067B (zh) | 2015-11-25 |
| CN102971067A (zh) | 2013-03-13 |
| WO2011138158A1 (de) | 2011-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
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