EP1514592B1 - Procédé et dispositif de mélange statique, en particulier pour l'encollage des fibres lignocellulosiques en utilisant un liant - Google Patents
Procédé et dispositif de mélange statique, en particulier pour l'encollage des fibres lignocellulosiques en utilisant un liant Download PDFInfo
- Publication number
- EP1514592B1 EP1514592B1 EP04019796A EP04019796A EP1514592B1 EP 1514592 B1 EP1514592 B1 EP 1514592B1 EP 04019796 A EP04019796 A EP 04019796A EP 04019796 A EP04019796 A EP 04019796A EP 1514592 B1 EP1514592 B1 EP 1514592B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixing
- flow
- mixing arrangement
- substances
- arrangement
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000011230 binding agent Substances 0.000 title claims abstract description 18
- 230000003068 static effect Effects 0.000 title claims description 23
- 239000000835 fiber Substances 0.000 title description 22
- 238000004026 adhesive bonding Methods 0.000 title description 7
- 239000000126 substance Substances 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 229920002678 cellulose Polymers 0.000 claims 3
- 239000001913 cellulose Substances 0.000 claims 3
- 239000002245 particle Substances 0.000 abstract description 3
- 239000011093 chipboard Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009827 uniform distribution Methods 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003260 vortexing Methods 0.000 description 1
Images
Classifications
-
- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4311—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being adjustable
-
- 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
- B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector 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
- B01F35/20—Measuring; Control or regulation
-
- 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
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2113—Pressure
-
- 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
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/222—Control or regulation of the operation of the driving system, e.g. torque, speed or power of motors; of the position of mixing devices or elements
-
- 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
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/222—Control or regulation of the operation of the driving system, e.g. torque, speed or power of motors; of the position of mixing devices or elements
- B01F35/2221—Control or regulation of the operation of the driving system, e.g. torque, speed or power of motors; of the position of mixing devices or elements the position of baffles used to modify the flow in a conduit or a container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; Controlling
Definitions
- the invention relates to a mixing method with the features of the preamble of patent claim 1 and a static mixer with the features of the preamble of claim 8.
- Static mixers and mixing processes resulting from their operation are known from many fields of application.
- the substances to be mixed together which may be particulate solid substances and / or liquid substances, are passed in a liquid or gas flow through a mixing arrangement which provides turbulence to the flow, which in turn becomes the desired one Mixing of the substances leads.
- a mixing method with the features of the preamble of patent claim 1 and a static mixer with the features of the preamble of claim 8 are known from DE 102 16 458 C1.
- rotatable and thus adjustable mounted paint elements are provided which have a recess in their component wall.
- the Adjustability of the inflow elements makes it possible to define different functional positions of the inflow elements.
- at least one functional position namely an inflow position, is provided, in which the component walls of the inflow elements protrude into a mixing chamber.
- the mixing chamber is partially narrowed in the inflow position of the inflow elements, so that the flow of the substances flowing in the mixing chamber is deflected.
- an electromotive, hydraulic or pneumatic drive device is assigned to them.
- MDF medium-density fiberboards
- the current state of the art in the gluing of lignocellulosic fibers for the production of fibreboard is the gluing in a blowpipe between the wet lignocellulosic fibers emitting refiner and a downstream dryer for the fibers.
- the binder is sprayed in the input region of the blow pipe behind the refiner on the wet fibers guided by a gas flow.
- This gluing process which is a special form of mixing process, has the disadvantage that it is associated with an increased binder consumption, which is about 20% above the binder consumption in the Trommelmischerbeleimung.
- the clear reasons for this increased binder consumption could not be fully clarified.
- One reason may be that an ideally uniform distribution of the binder on the lignocellulosic fibers before they enter the dryer, thereby fixing the binder on the fibers so that further distribution is at least severely hindered, is not achieved.
- DE 197 40 676 C2 discloses a tower as a static mixer for mixing fibers and binder in a laterally limited flow, in which or on the wall means for vortexing the fibers are arranged, which are designed as baffles, baffles or the like and adjustable can. The manner of adjustability of such means for entangling the fibers but nothing is carried out here.
- DE 101 39 128 A1 discloses a method and a device for vacuum impregnation of small-particle material in an evacuatable impregnation chamber, which can be designed for example as a rotatable drum with adjustable blades for mixing the material and the impregnating agent. Furthermore, measuring and Control circuits provided with which, for example, monitors the pressure or the pressure change in the impregnation and the respective measurement is used to change the speed of a feed and discharge screw depending on the discontinued material and impregnation so that a maximum vacuum seal is guaranteed
- DE 196 17 384 A1 relates to an arrangement and a method for controlling the mixture of two gas volume flows through a Venturi nozzle via its nozzle needle. It is about such a control that the predetermined mixing ratio of the two gas flow rates is maintained.
- DE 40 39 903 A1 relates to a device and a method for mixing steam with water.
- a safe operation is achieved by reducing an annular gap in a water pipe acted upon with water until a differential pressure across the annular gap reaches a certain value. Through the annular gap flows only the water.
- the invention has for its object to provide an improved mixing method of the type described above and a static mixer to implement it, with which various substances are controlled miscible even under adverse conditions.
- the object of the invention is achieved by a mixing method with the features of claim 1 and a static mixer with the features of claim 8.
- the mixing work currently performed by the mixing device on the substances to be mixed together is controlled by adjusting the mixing tools.
- the mixing work that is, the energy consumption during mixing, proves to be a suitable criterion for achieving a sufficient mixing of the substances to be mixed. It can be assumed that the mixing arrangement detects the individual components of the substances uniformly.
- the mixing tools of the mixing arrangement are adjusted in the new mixing method, which are connected for this purpose, for example with adjusting actuators.
- the mixing work of mixing tools can be changed, for example, by moving them further into or out of the laterally limited flow, whereby the free cross section and / or the course of the free cross section of the flow changes in each case.
- a decreasing free cross-section of the flow corresponds to an increasing mixing work and vice versa.
- At least one pressure in the flow can be determined.
- the new mixing method is monitored by a pressure drop in the flow over the mixing assembly. This pressure drop is a direct measure of the mixing work done by the mixing process. When a pressure drop of a certain magnitude results, it means that the mixing process has performed a certain mixing work per volume of the flow passed through the mixing arrangement.
- the pressure in the flow before and after the mixing arrangement can be measured.
- the pressure drop is then the difference between these two pressures.
- At least one mixing tool of the mixing arrangement can be adjusted to correct the pressure drop at a deviation of the pressure drop from a predetermined setpoint value beyond a limit value.
- the mixing arrangement is thus adapted, for example, to varying external parameters, in order to independently always carry out the same mixing work per volume of the passing flow.
- the novel mixing method in which a liquid substance and a particulate solid substance on which the liquid substance is to be distributed are guided by a gas flow through the mixing arrangement.
- the flow may also be a liquid flow and, for example, two particulate solid substances may also be mixed with one another.
- one of the substances to be mixed with each other can also form the flow completely or partially. It is also possible to mix several gaseous substances together by the new mixing method.
- the substances to be mixed together are a liquid binder which is to be distributed uniformly on lignocellulose-containing fibers.
- the new mixing method is suitable for use in gluing in a blowpipe, in which the binder is distributed over the moist lignocellus-containing fibers emerging from a refiner.
- the new static mixer is characterized in that the mixing tools are adjustable in order to control the mixing work currently being performed by the mixing arrangement on the substances to be mixed together.
- the new mixer can have a measuring device for at least one pressure in the flow channel.
- a measuring device is provided for a pressure drop in the flow channel above the mixing arrangement.
- the measuring device in each case comprises a pressure probe in front of and behind the mixing arrangement in the flow channel.
- the mixing arrangement of the new mixer comprises at least one mixing tool that can be adjusted such that the pressure drop of a flow in the flow channel above the mixing arrangement is variable.
- a control device may be provided which uses the pressure drop across the mixing arrangement as input signal, and at an exceeding of a limit deviation of the pressure drop from a predetermined setpoint adjusts the mixing tool.
- the mixing assembly may also include a plurality of adjustable tools that are actuated by the control device.
- the flow passage of the new mixer has an inlet for a particulate solid substance-promoting gas flow and a spray nozzle for a liquid substance to be distributed on the particulate solid substance.
- the mixer can be arranged in a blowing line between a moist lignocellulos terme fibers emitting refiner and a dryer for the fibers.
- the liquid substance injector nozzle may be disposed within the mixer upstream of the mixing assembly, within the mixing assembly and, in certain instances, even downstream of the mixing assembly. A position of the injection nozzle downstream of the mixing arrangement may be considered if the turbulence of the particulate solid substance induced by the mixing arrangement in the flow is sufficient for a distribution of the subsequently sprayed-on liquid substance.
- the injection nozzle can also open into the flow channel in the immediate area of a single mixing tool.
- the injection nozzle can also open into the flow channel in the immediate area of a single mixing tool.
- both individual injection nozzles can be provided at several different locations as well as a plurality of injection nozzles at one or more locations of the mixer.
- the static mixer 1 shown in longitudinal section in FIG. 1 has a laterally limited flow channel 2 which extends between two connecting flanges 3 and 4.
- the opening of the flow channel 2 at the connection flange 3 forms an inlet 5 for a Gas flow from 6, which conveys a particulate solid substance, such as lignocellulosic fiber through the flow channel 2 until it emerges at an outlet 7 again from the static mixer 1, which is formed by an opening of the flow channel 2 at the containment flange 4.
- the static mixer 1 has a connection flange 8, on which a Einsprühdüse not shown here can be fixed so that with her a liquid substance 9, such as a liquid binder, can be sprayed on the side of the gas flow 6 promoted particulate solid substance ,
- a mixing assembly 10 is provided with a plurality of mixing tools 11 to 16 in the flow channel 2.
- the mixing tools 11 to 16 fluidize the gas flow 6 passed through the mixing arrangement 10, so that the substances guided by the gas flow intimately mix with one another. This is synonymous with the desired distribution of the liquid substance 9 on the particulate solid substance with a particularly uniform distribution.
- the mixing tools 11 to 16 in FIG. 1 are those 11 to 13, which bring about a local constriction of the cross section of the flow channel 2 from the outside, and those 14 to 16, which are arranged centrally in the flow channel 2.
- the flow channel 2 is limited exclusively by a cylindrical tube 17 which extends between the connecting flanges 3 and 4.
- the mixing work performed by the mixing assembly 10 on the gas flow 6 causes a pressure drop in the gas flow 6 over the mixing assembly 10. This pressure drop is measured with pressure probes 18 and 19 which detect the pressure of the gas flow 6 in front of and behind the mixing assembly 10.
- the measuring signals 20 and 21 of the pressure probes 18 and 19 are the input signals of a monitoring and control device 22, which monitors the operation of the static mixer 1.
- the monitoring and control device 22 sends activation signals 23 to 28 to the mixing tools 11 to 16, as a result of which the mixing tools 11 to 16 be adjusted so that they increase or decrease the pressure drop across the mixing assembly 10 as needed.
- the mixing tools 11 to 13 further moved towards each other or further away from each other and the mixing tools 14 to 16 pivoted within the flow channel 2, which is indicated by double arrows.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Disintegrating Or Milling (AREA)
- Paper (AREA)
Claims (14)
- Procédé de mélange, dans lequel des substances à mélanger entre elles sont guidées dans un flux délimité latéralement à travers un système de malaxage (10) comportant au moins un malaxeur (11 à 16) statique réglable, le travail de mélange exercé actuellement par le système de malaxage (10) sur les substances à mélanger entre elles pouvant être réglé par le déplacement des malaxeurs (11 à 16), caractérisé en ce qu'au moins une pression dans le flux est déterminée comme paramètre du travail de mélange exercé actuellement par le système de malaxage (10) sur les substances à mélanger entre elles et en ce que le travail de mélange exercé actuellement par le système de malaxage (10) sur les substances à mélanger entre elles est réglé par le déplacement des malaxeurs (11 à 16).
- Procédé de mélange selon la revendication 1, caractérisé en ce qu'une chute de pression dans le flux est déterminée par l'intermédiaire du système de malaxage (10) et en ce que le procédé de mélange est surveillé à l'appui de la chute de pression.
- Procédé de mélange selon la revendication 2, caractérisé en ce que, pour déterminer la chute de pression, la pression dans le flux est mesurée en amont et en aval du système de malaxage (10).
- Procédé de mélange selon la revendication 2 ou 3, caractérisé en ce que, lorsque la divergence de la chute de pression par rapport à une valeur de consigne prédéfinie est supérieure à une valeur limite, au moins un malaxeur (11 à 16) du système de malaxage (10) est déplacé pour corriger la chute de pression.
- Procédé de mélange selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'une substance liquide (9) et une substance solide en forme de particules, sur laquelle est répartie la substance liquide, sont guidées par un flux de gaz (6) à travers le système de malaxage (10).
- Procédé de mélange selon la revendication 5, caractérisé en ce que la substance liquide (9) est un liant et la substance solide en forme de particules est formée par des fibres lignocellulosiques.
- Procédé de mélange selon la revendication 6, caractérisé en ce que le liant est réparti sur les fibres lignocellulosiques sortant à l'état humide d'un raffineur.
- Mélangeur statique pour mélanger des substances dans un flux délimité latéralement, destiné à la mise en oeuvre d'un procédé de mélange selon l'une quelconque des revendications 1 à 7, comportant un canal d'écoulement (2) délimité latéralement, dans lequel est disposé un système de malaxage (10) avec au moins un malaxeur (11 à 16) statique réglable, le travail de mélange exercé actuellement par le système de malaxage (10) sur les substances à mélanger entre elles pouvant être réglé par le déplacement des malaxeurs (11 à 16), caractérisé en ce qu'un dispositif de mesure d'au moins une pression dans le canal d'écoulement (2) est prévu comme paramètre pour le travail de mélange exercé actuellement par le système de malaxage (10) sur les substances à mélanger entre elles et en ce qu'un dispositif de commande (22) est configuré de telle sorte que les malaxeurs (11 à 16) soient déplacés pour régler le travail de mélange exercé actuellement par le système de malaxage (10) sur les substances à mélanger entre elles.
- Mélangeur selon la revendication 8, caractérisé en ce qu'un dispositif de mesure d'une chute de pression est prévu dans le canal d'écoulement (2) au-dessus du système de malaxage (10).
- Mélangeur selon la revendication 9, caractérisé en ce que le dispositif de mesure comporte, dans le canal d'écoulement (2), une sonde de pression (18, 19) respectivement en amont et en aval du système de malaxage (10).
- Mélangeur selon la revendication 9 ou 10, caractérisé en ce qu'au moins un malaxeur (11 à 16) du système de malaxage (10) peut être déplacé de manière à faire varier la chute de pression d'un flux dans le canal d'écoulement (2) au-dessus du système de malaxage (10).
- Mélangeur selon la revendication 11, caractérisé en ce que, lorsque la divergence de la chute de pression par rapport à une valeur de consigne prédéfinie est supérieure à une valeur limite, le dispositif de commande (22) déplace au moins un malaxeur (11 à 16) du système de malaxage (10).
- Mélangeur selon l'une quelconque des revendications 8 à 12, caractérisé en ce que le canal d'écoulement (2) comporte une admission (5) pour un flux de gaz (6) véhiculant une substance solide en forme de particules, et une buse de pulvérisation pour une substance liquide (9) à répartir sur la substance solide en forme de particules.
- Mélangeur selon la revendication 13, caractérisé en ce qu'il est agencé dans une conduite de soufflage entre un raffineur fournissant des fibres lignocellulosiques humides et un sécheur pour les fibres.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10341960A DE10341960B4 (de) | 2003-09-11 | 2003-09-11 | Mischverfahren und statischer Mischer, insbesondere zur Beleimung von lignocellulosehaltigen Fasern mit einem Bindemittel |
| DE10341960 | 2003-09-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1514592A1 EP1514592A1 (fr) | 2005-03-16 |
| EP1514592B1 true EP1514592B1 (fr) | 2007-03-07 |
Family
ID=34129753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04019796A Expired - Lifetime EP1514592B1 (fr) | 2003-09-11 | 2004-08-20 | Procédé et dispositif de mélange statique, en particulier pour l'encollage des fibres lignocellulosiques en utilisant un liant |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1514592B1 (fr) |
| AT (1) | ATE355890T1 (fr) |
| DE (2) | DE10341960B4 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7281844B2 (en) * | 2004-06-07 | 2007-10-16 | Robert W Glanville | Variable static mixer |
| DE102006026124A1 (de) | 2006-06-03 | 2007-12-06 | Glunz Ag | Verfahren und Vorrichtung zur Beleimung von Partikeln im Bereich eines Blasrohrs |
| JP5787104B2 (ja) * | 2013-02-21 | 2015-09-30 | トヨタ自動車株式会社 | 分散板及び分散装置 |
| GB201407428D0 (en) * | 2014-04-28 | 2014-06-11 | Cambridge Res And Dev Ltd | Heating, Mixing and hydrating apparatus and process |
| GB201407425D0 (en) * | 2014-04-28 | 2014-06-11 | Cambridge Res And Dev Ltd | Heating, Mixing and hydrating apparatus and process |
| DE102015107321A1 (de) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Vorrichtung und Verfahren zum Beleimen von Fasern oder faserähnlichem Material |
| CN110267928A (zh) * | 2017-01-15 | 2019-09-20 | 迈克尔·乔治·巴特勒 | 用于生成和浇注塌落度为零的可泵送混凝土的设备、系统和方法 |
| US10737227B2 (en) | 2018-09-25 | 2020-08-11 | Westfall Manufacturing Company | Static mixer with curved fins |
| CN111068536B (zh) * | 2019-12-12 | 2022-03-01 | 陕西航天机电环境工程设计院有限责任公司 | 一种管道混合器 |
| CN114789022A (zh) * | 2022-05-11 | 2022-07-26 | 华夏中然生态科技集团有限公司 | 一种基于余活性氧浓度变化的加药量控制系统 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4099268A (en) * | 1977-01-24 | 1978-07-04 | Ingersoll-Rand Company | Mixing device |
| DE4039903A1 (de) * | 1990-03-12 | 1991-09-19 | Hoechst Ag | Vorrichtung sowie verfahren zur mischung von dampf mit wasser |
| DE19617384A1 (de) * | 1996-04-30 | 1997-11-06 | Siemens Ag | Anordnung und Verfahren zur Regelung des Mischungsverhältnisses zweier Gasvolumenströme durch eine Venturi-Düse über deren Düsennadel |
| DE19740676C2 (de) * | 1997-09-16 | 2003-07-17 | Fraunhofer Ges Forschung | Verfahren zum Beleimen von Fasern |
| DE19752005A1 (de) * | 1997-11-24 | 1999-05-27 | Gelhard Volker Dipl Ing Dipl W | Vorrichtung und Verfahren zur Vermischung eines ersten Fluids mit einem zweiten Fluid |
| EP1166862B1 (fr) * | 2000-06-19 | 2004-02-04 | Balcke-Dürr GmbH | Mélangeur pour mélanger des gaz et d'autres liquides newtoniens |
| DE10139128A1 (de) * | 2001-08-09 | 2003-02-27 | Herbert Georg Nopper | Vorrichtung und Verfahren zur Vakuumimprägnierung |
| DE10216458C1 (de) * | 2002-04-12 | 2003-06-26 | F S Fehrer Automotive Foam Gmb | Vorrichtung zum Mischen und/oder Durchleiten von Werkstoffkomponenten |
| DE10237341A1 (de) * | 2002-08-14 | 2004-02-26 | Siemens Ag | Modell, Berechnung und Anwendung periodisch erzeugter Kantenwirbel im Turbomaschinenbau |
| DE10247412C5 (de) * | 2002-10-11 | 2010-07-01 | Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg | Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten und dergleichen Holzwerkstoffplatten |
| DE10247414B4 (de) * | 2002-10-11 | 2009-04-02 | Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg | Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten o. dgl. Holzwerkstoffplatten |
| DE10247413B4 (de) * | 2002-10-11 | 2009-05-07 | Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg | Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten oder dergleichen Holzwerkstoffplatten |
-
2003
- 2003-09-11 DE DE10341960A patent/DE10341960B4/de not_active Expired - Fee Related
-
2004
- 2004-08-20 DE DE502004003109T patent/DE502004003109D1/de not_active Expired - Lifetime
- 2004-08-20 AT AT04019796T patent/ATE355890T1/de not_active IP Right Cessation
- 2004-08-20 EP EP04019796A patent/EP1514592B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE355890T1 (de) | 2007-03-15 |
| EP1514592A1 (fr) | 2005-03-16 |
| DE10341960A1 (de) | 2005-04-14 |
| DE502004003109D1 (de) | 2007-04-19 |
| DE10341960B4 (de) | 2008-02-07 |
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