Dynamic mixer and use thereof.

(54) Title: DYNAMIC MIXER AND USE OF IT.

(54) Title: DYNAMIC MIXER AND USE THEREOF.

(57) Summary

The invention relates to a dynamic mixer (1,100) for a plurality of fluid components in which the referred mixer comprises a box (2,102) and a rotor element (3,103) that is rotatably arranged in the box, with the box in each case at least one intake opening (12, 13, 112, 113) for each component and at least one discharge opening (20, 120). An annular groove (15, 115) is provided between the rotor element and the case, where a mixing element (7,107) is arranged in the referred annular groove, a mixing element that is connected with the rotor element (3,103) . The box comprises a first antechamber (21,121) and a main chamber (22, 122). A second antechamber (17, 117) is provided which is arranged downstream of the first antechamber (21, 121) such that components can flow through the first antechamber (21, 121) before entering the second antechamber. (17,117).

(57) Abstract

The invention relates to a dynamic mixer (1, 100) for a plurality of fluid components, where said mixer contains a housing (2, 102) and a rotor element (3, 103) which is rotatably arranged in the housing, where the housing has a respective inlet opening (12,13,112,113) at least for each component and at least one outlet opening (20,120). An annular gap (15,115) is provided between the rotor element and the housing, where in said annular gap a mixing element (7,107) which is connected to the rotor element (3, 103) is arranged. The housing comprises a first prechamber (21, 121) and a main chamber (22,122). A second prechamber (17,117) is provided, which is arranged downstream of the first prechamber (21, 121), such that the components can flow through the first prechamber (21, 121), before the components enter the second prechamber (17,117).

IMPI

PATENT TITLE No. 357758

Headlines): SULZER MIXPAC AG

Address: Rütistrasse 7, CH-9469, Haag, SWITZERLAND

Name: DYNAMIC MIXER AND USE OF THIS.

Classification:

Inventor (s):

CIP: BO1F7 / OO; A61C9 / 0Q; BQ1F13 / 00; B05C17 / 005

CPC: B01F7 / 0ea¿5; Α6ΐΟ® (<) 2 ^ É ^ 1F13 / 002; B05C17 / 00566

VOLKER LINNE; ANDREAS HIEMER; FLORIA ^ l / dLléLER

Number:

MX / a / 2013/009858

Country:

EP

<img file="MX357758B_D0001.tif" />

International:

2012

Number:

11156134.6

Validity: Vetoed years

Expiration Date! · 27 th eA ^ p $ I ^ Q32 «_

Issue Date: $ 4 be pflB from 201¾ · .. &lt;*. xK '/

The reference patent is granted with reference to articles) 1st, 2nd fraction, 6th W, and ^ 9 detetfey of the fSdustnal Property.

In accordance with 6ί '«Βίο (^ 23 of the Law of the ^ justrustr property; from the prewntacfce date of the application tntMr ^ eM» will be

TO

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«• jetaal vjgpnciaÁeAreinte q / tos4raprpfrogables, told iremantio &amp; r v§entesfl4 ^ / W» fchos.

Who subscribes the present tftolffloMos co? Wüll ^ Rqnto% ai fio dtsp3 ^ r ^ Tr (Official Journal of the Federation (EKQ.F.) 27 / 06ft99T »Mefermattat, fll»,

01/25/2006, 05/06/2009 / 06.06 / Ο1 / 2ΟΐΜίίΟ60] 1ΟΛ / Ρ6 / 2Ο1Ο. 27

Regulations of the Mexican Institute ^ A lqjl) ropÍMkdilñ8B «ájal (jOF 'articles 1 °, 3 °, 4 °, 5 ° fraction V ¡nci

12/27/1999, amended on 10/10/2002 /

Deputy Generals, Coordinator, Di Departmentals and other subordinates of 08/04/2004 and 09/13/2007).

'** to go

This document is signed with an advanced electronic signature (FIEL), with its Regulations, and 1 section III, 2 section V, 26 BIS and 26 TER of the Acuei Electronic Services (PASE) of the Mexican Institute of Industrial Property, in the procedures that They indicated.

&gt; '• “'“ «ΜΙ * i m4 / SSluW 'artlo ^ loaffi fm ^ offes ^ lW7 ° bis 2q | e Ijfíey of Industrial Property

Σ25 / 10/1936755712/1997, .17 / 05 ^ 99, 01/26/2004, 06/16/2005, additives € 2? Fraccióytj / ¡pCuso á5 * 4 ° and 12 ° fractions I and III of ^ 101 / 07 / ^^ 1 ^^ 004, 07/28/2004 and 09/07/2007);

iQiXjjr Industrial Property (DOF relegates faculties in the Res Divisional Directors. Coordinators reformed on 02/04/2000, 07/29/2004, the 7th BIS 2 of the Industrial Property Law; guidelines for the use of the Payment Portal and

THE DIVISIONAL DIRECTOR OF PATENTS

<img file="MX357758B_D0003.tif" />

Arenai No

NAHANNY CANAL REYES

Original string:

NAHANNY MARISOL CANAL REYES | 00001000000403252793 | Tax Administration Service | 1695 || MX / 2018/63388 | MX / a / 2013/009858 | Patent title PCT | 1223 | GAGV | Page (s) | swvDBZqm89wr15BLYtC / h6IMvuA =

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1, Santa María Tepepan Town. Xochimílco, 16020, Mexico City

55) 53340700 www.g0b.iTix / impi

<img file="MX357758B_D0004.tif" />

MX / 2018/63388

MTlaboWlwwtMwIMPI

3577S8

Mexican Institute of Industrial Property

<img file="MX357758B_D0005.tif" />

DYNAMIC MIXER AND USE OF IT --- DESCRIPTION OF THE INVENTION

<td>The invention</td><td>I know</td><td>relates to</td><td>a</td><td>mixer</td>

<td>dynamic. This type</td><td>of</td><td colspan="3">dynamic mixer is used</td>

<td colspan="2">advantageously for mixing</td><td>a plurality</td><td>of</td><td>components</td>

<td>available through</td><td>of</td><td>a cartridge</td><td>of</td><td>components</td>

<td>multiple.</td><td></td><td></td><td></td><td></td>

<td>From the document</td><td>WO</td><td>2007/041878 To</td><td>I know</td><td>knows a</td>

dynamic mixer for mixing components with different parts by volume, in particular for the production of dental impression castings. Inside the casing mixed a pre-chamber is arranged within which the mixing rotor has a distributor body for distributing the components around its axis of rotation, to thereby achieve the proper mixing ratio between the components and to avoid the inclusion of air. The premixed components then arrive to be completely mixed through at least one passage opening to a main chamber.

In particular at high mixing ratios of viscous or pasty components it is particularly difficult to keep the correct mixing ratio constant and to obtain good mixing. Mixing is generally done at

IMPI instituto mexican ». · MIA INDUSTRIAL PROPERTY

<img file="MX357758B_D0006.tif" />

through shear forces, ^ iuilJP — components pushed through mixer. The mixer has a housing and a rotor element which is arranged in the housing in a rotary manner, the housing in each case having an intake opening for at least two components and at least one discharge opening. An annular intermediate space is provided between the rotor element and the housing, in which a mixing element fixed on the rotor element is arranged. The rotor element consists of the trunk element and the mixing element. This mixing element is made as a paddle element that projects from the trunk element to the intermediate space. Preferably there are a plurality of such pallet elements. In addition, static mixing elements can also project from the interior wall of the housing to the intermediate space, which, however, is difficult to realize from production technology. The components are rearranged multiple times through the paddle element (s) and the static mixing elements optionally provided in addition to kneading.

From document W02007 / 041878 it is also known the separation of the intermediate space in an antechamber and a main chamber. The antechamber serves to delay the transport of a component A compared to a component

ΙΜΡΙ

<img file="MX357758B_D0007.tif" />

Β, so that Component A arrives later in the main chamber than Component B. This ensures that the first mix ratio corresponds to a desirable mix ratio. A distributor body connected to the rotor element is used to ensure an air-bubble-free filling of the antechamber with component A, as well as its distribution. Since the distributor body moves together with the rotor element, the resistance of the liquid and, consequently, the pressure loss remains low. It further ensures that the minimum possible distance is maintained between the intake opening and the antechamber to keep liquid resistance low. A disadvantage, however, is that the two components arrive unmixed in the main chamber.

The objective is to produce phase boundary surfaces as large as possible between the components by generating through distribution and rearrangement of the current components many layers and as thin as possible, to achieve a mixing effect. Until now the components have been conducted, after the antechamber in which the components were first combined, to the main chamber. Fluidic mass streams are separated in the main chamber by mixing elements attached to the rotor element as a consequence of movement of the transverse rotor element relative to

IMPI

MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY

<img file="MX357758B_D0008.tif" />

the main current direction and one stop of the product mass is displaced for the most part against the main current direction. The product mass can therefore flow behind the mixing element and thus rearrange and layer the components in the product mass. More difficult mixing tasks produce longer mixers, greater application of force, and thus higher power consumption for the mixer drive and increased resistance to push components through the mixer

It was inevitable, therefore, to be content with the following disadvantageous consequences: a longer mixer, higher energy consumption and a greater pressure loss. Therefore larger and heavier drive units and batteries have to be provided for the discharge apparatus, which limits the handling of the mixture application, increases energy needs and, in the case of battery operation, reduces the time of use of the discharge apparatus.

Since in the event of a discharge interruption the components in the mixer react with each other and harden, the mixer has to be replaced after use together with the components contained in it and discarded.

The object of the invention is therefore to find a mixer for tasks

IMPÍ

MEXICAN INSTITUTE OF THE «OH AGE

INDUSTRIAL _ difficult to mix

<img file="MX357758B_D0009.tif" />

It has a short construction length and is supplied with as little power supply as possible for the rotor and less pressure loss through the mixer compared to the state of the art. Mixers are produced in large numbers of parts. Small mixers save on raw material for the mixer, components and also costs to dispose of used mixers.

The object of the invention is achieved with a dynamic mixer for a plurality of fluid components containing a housing and a rotor element which is rotatably arranged in the housing. The casing has at least one intake opening for respectively one component and at least one discharge opening, with an annular gap being provided between the rotor element and the casing in which a mixing element is arranged which is connected to the mixing element. rotor. The housing comprises a first antechamber, a second antechamber, and a main chamber, the second antechamber being arranged downstream of the first antechamber, so that components can flow through the first antechamber before entering the second antechamber.

The components are transported in particular

IMPI

MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY

<img file="MX357758B_D0010.tif" />

in the second antechamber radially in the direction of the rotor element and previously mixed through the mixing elements arranged on the side of the housing or on the rotor element, before being brought after a deviation in axial direction to the main chamber . Preferably a mixing element is provided in the second antechamber. A mixing element can be provided in the first antechamber.

According to an exemplary embodiment, the mixing element can be made as a pivot element. According to another embodiment, the mixing element can be made as a drag element or an arm element. The drive element or arm element may in particular have a curvature, the curvature of the front face being particularly convex and / or the curvature of the rear face concave.

According to another exemplary embodiment, the mixing element in the main chamber comprises at least one paddle element that is designed as a guide element for the transport of the components from the intake opening to the discharge opening. The paddle element in particular does not cover more than 50% of a plane lying through the intermediate space containing the paddle element and having a perpendicular orientation relative to the axis of the dynamic mixer.

IMPI

MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY

<img file="MX357758B_D0011.tif" />

A first vane element and a second vane element downstream of the first vane element may be arranged in a main chamber, the shortest distance between the first vane element and the second vane element being at least a third of the distance between the rotor element and the boundary of the main chamber defined by the casing.

According to an exemplary embodiment, a discharge opening is provided between the second antechamber and the main chamber and the housing for the passage of the components. According to another example of embodiment, a rotating surface is arranged between the second antechamber and the first antechamber.

The rotor element according to each of the preceding exemplary embodiments can be housed in the first housing part. An apparatus for piercing a container containing the components can be provided in at least one of the intake openings of the first housing part.

The mixing ratio of the first and second components can be 1: 1, but also 1:10 to

1:50 or more.

The use of the dynamic mixer is preferably done for viscous two-component systems

IMPI

<img file="MX357758B_D0012.tif" />

MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY, such as for joints, adhesive joints, molding masses in autonomous manual unloading devices or in stationary tabletop devices.

If the components are distributed in a first inventive premixing stage evenly in space, even without mixing, then it is possible to achieve good mixing through finely spaced mixing with much less energy investment compared to previously known solutions. It was also observed that the permanence in the Dynamic Mixer of the components for a specified mixing effect can be reduced and consequently the dynamic mixer can be built more compact and with less volume.

BRIEF DESCRIPTION OF THE FIGURES

The invention is explained below with the help of the figures. It is shown in

Fig. The a section through a dynamic mixer according to a first embodiment of the invention,

Fig. Ib a dynamic section according to Fig. The antechamber,

Fig. Le a dynamic section according to Fig. A through the mixer through the first through the mixer through the second

IMPI

MEXICAN INSTITUTE OF PROPERTY

INDUSTRIAL antechamber,

<img file="MX357758B_D0013.tif" />

Fig. 2a a section through a dynamic mixer according to a second embodiment of the invention,

<td></td><td>Fig.</td><td>2b a section</td><td>to</td><td>through</td><td>of</td><td>the</td><td>mixer</td>

<td>dynamic</td><td>according</td><td>Fig. 2a</td><td>to</td><td>through</td><td>of</td><td></td><td>the first</td>

<td colspan="2">antechamber,</td><td></td><td></td><td></td><td></td><td></td><td></td>

<td></td><td>Fig.</td><td>2c one section</td><td>to</td><td>through</td><td>of</td><td>the</td><td>mixer</td>

<td>dynamic</td><td>according</td><td>Fig. 2a</td><td>to</td><td>through</td><td>of</td><td></td><td>the second</td>

<td colspan="2">antechamber,</td><td></td><td></td><td></td><td></td><td></td><td></td>

<td></td><td>Fig.</td><td>2d a section</td><td>to</td><td>through</td><td>of</td><td>the</td><td>mixer</td>

dynamic according to Fig. 2a through the main chamber,

Fig. 3 a view of a rotor element for a dynamic mixer.

EXPLANATION OF THE EXAMPLES OF REALIZATION

<td>Fig.</td><td>the</td><td>shows a</td><td>mixer</td><td>dynamics for</td>

<td>a plurality</td><td>of</td><td>components</td><td>fluids.</td><td>The mixer</td>

<td>dynamic 1 has</td><td>a</td><td>housing 2 and</td><td>an element</td><td>rotor 3 which</td>

it is arranged in the casing 2 so that it can rotate on a rotor shaft 8. In the present embodiment, the casing 2 is built in two parts: it contains a first casing part 4 in which the component supply is located and a second casing part 5 serving for the production of a mixture of the plurality of fluid components. The first part of

IMPI

MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY

<img file="MX357758B_D0014.tif" />

Housing 4 is connected to the second housing part 5 via a retaining connection, a quick connection or a welded joint as soon as the rotor element 3 has been lodged in the second housing part 5. The first housing part 4 it has an intake opening 12, 13 for at least one component in each case. The intake openings 12, 13 may have different diameters, this depending on the desirable mixing ratio of the components. Inlet openings

10 open into corresponding intake channels which are arranged in the first housing part 4. The intake channels 10, 11 open into the first antechamber 21 which are provided with discharge openings, not shown in Fig. La, leading into an interior space 15 of the second housing part 5.

The second housing part 5 has at least one discharge opening 20. Through the second discharge opening 20 the mixing of the components leaves the dynamic mixer. The discharge opening 20 can have a special design according to the intended application. In the present case, a v-shaped section is provided. With the help of this V-shaped section the shape of a triangular bead is produced when unloading the product mass. The interior space 15 of the second housing part 5 serves

ΙΜΡΙ

MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY

<img file="MX357758B_D0015.tif" />

as housing for the rotor element 3. The interior space 15 is delimited by the interior wall 6 of the second housing part 5. The interior space 15 is made as an annular intermediate space at least in the regions where the rotor element is located 3.

Interior space 15 has a second

<td>antechamber 17</td><td>and</td><td>a</td><td>camera</td><td>principal</td><td> 22.</td><td>The</td><td>components</td>

<td>are guided</td><td>of</td><td>the</td><td>second</td><td colspan="2">antechamber</td><td>17 to</td><td>the camera</td>

<td>main 22.</td><td>In</td><td>the</td><td>second</td><td>antechamber</td><td> 17</td><td>can</td><td>perform</td>

and an additional premix. For this purpose, a plurality of mixing elements 18 are arranged in the antechamber. These mixing elements are made as pivot elements projecting into the antechamber. The pivot elements may alternatively be arranged on a rotating surface 19 of the rotor element 3, and / or project to the antechamber 17 of the interior wall of the housing that delimits the antechamber. Due to the rotating surface 19 and the pivot elements 18 shear forces are exerted on the components.

Alternatively, a stationary disk element may be arranged above the rotating surface 19, which may optionally have pivot elements. At least one discharge opening may be arranged in the disc element for the passage of the

Wicked

MEXICAN INSTITUTE A ·

FROM PROPERTY components to the second antechamber. The elementd ^ SS '^' disfe ^ -³^ may lie between the first and so ^ undta · part »-d® ¿« ..¿V casing.

An annular gap is provided between the rotor element 3 and the interior wall 6 of the housing, in which a mixing element 7 is arranged, connected to the rotor element 3.

The mixing element 7 comprises in the main chamber 22 a plurality of paddle elements 23. The paddle elements 23 project as projections to the interior space 15 that forms the main chamber 22. In this main chamber 22, mixing of the components as the components are collected by the pallet elements and rearranged. At least a part of the pallet elements is made as guide elements for the transport of the components through the interior space 15 towards the discharge opening 20.

The rotor element is at least partly made as a hollow body. The central hollow body of the rotor element serves as a reception for a drive shaft.

The hollow space is advantageously at least triangular in shape, so that a drive shaft can be rotatably connected to the rotor element so that the rotor element can be propelled.

The dynamic mixer then contains at least

ΙΜΡΙ «

MEXICAN INSTITUTE OF LA PROriEBAD

INDUSTRIAL two antechambers. The first antechamber 21 is used for the introduction of the components, it being possible for a thick premix to be achieved in the first antechamber. The second antechamber 17 serves to achieve a more finely spaced mix. The first antechamber 21 is designed such that two or more components are introduced so as to the first antechamber 21 such that the components with the smallest flow rate are introduced into the flow rate of the component with the largest flow rate. The first antechamber 21 is separated from the second antechamber 17 by a rotating surface 19, in particular a cover plate, which can be arranged on the rotor element 3. In the first antechamber 21 it is guided by means of a vane element fixed in the rotor element 3 and optionally in the housing or in a separate stator one of the components of the inlet channel 11 in the direction of the discharge opening of the inlet channel input 10 of the other component, whereby at least a first distribution of the components and / or eventually a first premix of the components is achieved, forming a mass of product. The premixed components arrive from the first antechamber 21 through an outer annular groove that is formed by the mixer housing and the deck plate to the second antechamber 17. In the second antechamber 17 the premixed components move

IMPI

Mexican INSTITUTE OF PROPERTY

<img file="MX357758B_D0016.tif" />

radially in relation to the rotor axis 8 and additionally with the help of small 'óbü Láculuó, for example pivot elements, finely spaced and with little application of force. The product mass is guided from the second antechamber 17 to the main chamber 22. After an axial deviation in the transition region between the second antechamber 17 and the main chamber 22 the mass of product arrives at the discharge opening 20 located in center. Complete mixing is performed in main chamber 22 using other paddle elements or static mixing elements.

The first 21 antechamber is shown in Fig. Ib in a section through the dynamic mixer in the region of the first housing part 4. The position of the section is indicated in Fig. La by AA. The section plane is laid perpendicular to the rotor axis and passes through the first antechamber. The two intake channels 10, 11 open into the first antechamber 21. In the first antechamber there is an arm element 60 which is connected to the rotor element 3. Of course, a plurality of such arm elements 60 can be provided; Four arm elements of the same type are shown in Fig. Ib.

Arm member 60 extends through first antechamber 21 of rotor member 3 to the

IMPI «STÍTUTO Mexican M LA PROMEDAO INDUSTRIAL interior wall 65 of the first part of the housing 4 that

<img file="MX357758B_D0017.tif" />

delimits the first antechamber. The arm element 60 has a front face 61 by means of which the product mass is pushed through the first antechamber 21, and an opposite rear face 62. The rear face 62 has a concave curvature; front face 61 has a convex curvature. The radii of curvature of the curvatures of the rear and front faces are essentially the same. Arm member 60 extends from floor 66 to ceiling 67 of antechamber 21. The roof 67 can only be seen in Fig. 1 on the rotating surface 19. A notch 63 can be provided in the arm element 60, if a part of the product mass is to escape from the front face 61 to the rear face 62.

The arm element 60 further has a guide notch 64. By means of the guide notch 64 the arm element slides on a shoulder 69 of the first housing part. The rotor element is also retained in the dynamic mixer by means of the shoulder.

Fig. Shows you a section through the second antechamber 17. This section through the dynamic mixer is laid by the region of the connection between the first housing part 4 and the second housing part 5. The location of the section is indicated in Fig. la by BB. The section plane is perpendicular with respect to that of rotation 19 forms the axis floor of the

<img file="MX357758B_D0018.tif" />

broken

OF INDUSTRIAL PROPERTY second antechamber 17.

<img file="MX357758B_D0019.tif" />

The product mass passes through an annular groove 70 to the second antechamber and leaves the second antechamber through an annular discharge opening 71 that can only be seen in Fig. La. In the second antechamber there is a plurality of pivot elements 18. The pivot elements project from the ceiling 72 into the second antechamber 17. The product mass is pushed by shear forces that are applied across the rotating surface 19 at least in part in a rotary motion. When this product mass reaches one of the pivot elements, it then separates into two partial streams, causing rearrangement and premixing of the product mass components with minimal application of outside forces. Sections of wall elements 73 may additionally be provided. These sections of the wall elements 73 are arranged essentially around the discharge opening 71 (see Fig. La) and impose a uniform passage through the second antechamber before entering the main chamber. The wall element sections 73 project from the ceiling 72 into the interior of the antechamber 17. The wall element sections 73 are made as cylindrical segments. The inner diameter of the

IMPI ^

INSTITUTO MEXICANO cylindrical segments corresponds essentiallymentyAj® ^ rSífeáI (^ S3 inside the discharge opening 71, respectively, to the internal diameter of the main chamber 22 formed by the second housing part 5 at the entrance to it.

Fig. 2a shows a dynamic mixer according to a second embodiment of the invention for mixing a plurality of fluid components. The dynamic mixer 100 has a housing 102 and a rotor element 103 which is arranged in the housing 102 in a manner

<td>that can</td><td colspan="2">rotate on</td><td>an axis</td><td>of</td><td>rotor 108. In</td><td colspan="2">modality</td>

<td>Present,</td><td>the</td><td>Case</td><td colspan="2">102 is</td><td>built in</td><td>two</td><td>parts:</td>

<td>contains</td><td>a</td><td>first</td><td>part</td><td>of</td><td>housing 104</td><td>in</td><td>That</td>

<td>find</td><td>the</td><td colspan="2">feed</td><td>the</td><td>components and</td><td>a</td><td>second</td>

casing part 105 serving for the production of a mixture of the plurality of fluid components. The first housing part is connected to the second housing part through a retaining connection, a quick connection or a welded joint as soon as the rotor element 103 has been lodged in the second housing part 105. The first part of Housing 104 has an intake opening 112, 113 for at least one component in each case. Intake openings 112, 113 can have different diameters, this depending on the desirable mixing ratio of the components. Inlet openings lead to intake channels

110,

111

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MEXICAN INSTITUTE OF INDUSTRIAL PROPERTY

<img file="MX357758B_D0020.tif" />

Corresponding that are arranged in the first housing part 104. The intake channels 110, 111 open into the first antechamber 121 that are provided with. discharge openings 130, 131 opening into the second antechamber 118 of the second housing part 105.

<td>The</td><td>second part</td><td>of</td><td>Case</td><td> 105</td><td colspan="2">have at least</td>

<td>An opening</td><td>discharge</td><td> 120</td><td colspan="2">Through</td><td>of</td><td>the second</td>

<td>opening of</td><td>download 120</td><td>the</td><td>mixture</td><td>of</td><td>the</td><td>components</td>

leave the dynamic mixer. The main chamber of the second housing part 105 serves as a housing for the rotor element 103.

The components are guided from the second antechamber 117 to the main chamber 122. In the second antechamber 117 further mixing can already be performed. For this purpose, a mixing element 118 is arranged in the second antechamber. This mixing element 118 is made as a paddle element that is connected to the rotor element 103. An annular gap is provided in main chamber 122 between rotor element 103 and the interior wall of the housing in which a mixing element 107 is connected to the rotor element.

103.

The mixing element 107 comprises in the main chamber 122 a plurality of paddle elements 123. The paddle elements 123 project in the manner of

IMPI

MEXICAN INSTITUTE _Ί . _η . . . r- FROM THE PROPERTY, highlights to the interior space 115 that forms the main 'iwsTRi ^ á 122. In this main chamber 122_nona = »rahn

<img file="MX357758B_D0021.tif" />

<td>mixing</td><td>thoroughly</td><td>of</td><td>the</td>

<td>components</td><td>caught</td><td>by</td><td>the</td>

<td>rearranged.</td><td>At least</td><td>a</td><td>part</td>

Components as the pallet elements and the pallet elements are made as a guide element for the transport of the components through the interior space 115 towards the discharge opening 120.

It is also not necessary that adjacent blade elements arranged one behind the other relative to the rotor shaft 108 have the same distance from each other. The distance from the blade element 123, for example, which is arranged closer to the discharge opening 120 to the blade element 126 is shorter than the distance from the blade element 126 to the blade element 128.

The first antechamber 121 is shown in Fig.

2b in a section through the dynamic mixer in the region of the first housing part 104. The position of the section is indicated in Fig. 2a by AA. The section plane is laid perpendicular to the rotor axis and passes through the first antechamber 121. The

<td>two channels</td><td>of</td><td>admission 110,</td><td>111 flow into</td><td>the</td><td>first</td>

<td>antechamber</td><td> 121.</td><td>In the first</td><td>antechamber 121 se</td><td colspan="2">find</td>

<td>ready</td><td>some</td><td>elements of</td><td colspan="2">restlessness 175</td><td>That</td>

<td>they project</td><td>of the</td><td>166th floor of</td><td>the antechamber</td><td> 121</td><td>to</td>

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stationary and separate the product mass flow.

Advantageously they have a cross section that first increases continuously in the direction of rotation 169, goes through a maximum and then decreases continuously. The cross section may in particular have a diamond shape. Similar to the uneasiness elements is also the design of the drag elements 176. These project from the rotating surface 129 to the first antechamber 121. These drive elements 176 are moved together with the rotating surface 129 when the rotor element 103 performs a rotary movement. The outer drive elements 176 tear the components from the discharge openings of the channels 110, lll and take them to the first antechamber 121. This measure achieves a uniform mixing ratio of the components. The drive elements 176 and the uneasiness elements 175 together cause a distribution of the components and a first premixing of these in the product mass before it reaches through the discharge openings 130, 131 to the second antechamber 117. The discharge openings 130, 131 are arranged on the rotating surface 129 and are shown in Figure 2a.

The ceiling 167 of the first antechamber is visible only in Fig. 2a on the rotating surface 129. Between the, MEXICAN INSTITUTE floor 166 and ceiling 167 extends the wall^OF5 ^ K ^ 53o

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ML red INSTITUTE^OF5 ^ É which is part of the first housing part 104

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Together with the hub of the rotor element 103 and the rotating surface 129, the inner drive elements 176 can form a guide notch 164. By means of the guide notch 164, the rotor element 103 slides on a shoulder 169 of the first part of the Case. Rotor element 103 is also retained by shoulder 169 within the dynamic mixer.

Fig. 2c shows a section through the second antechamber 117. This section through the dynamic mixer is laid by the region of the connection between the first casing part 104 and the second casing part 105. The location of the section is indicated in Fig. 2a by BB. The section plane is perpendicular to the rotor axis 108. The rotation surface 119 forms the roof of the second antechamber 117. The rotating surface 129 forms the floor of the second antechamber 117.

The product mass passes through the openings 130, 131 of the first antechamber 121 to the second antechamber 117 and leaves the second antechamber 117 through an annular discharge opening 171 that can only be seen in Fig. 2d. In the second antechamber 117 is a plurality of mixing elements 118. The

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INSTITUTO MEXICaNv DELA ΝΙΟΠΕΟΑΡ

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118 mixing elements are projected from the ei £ mentff^tW? '^TO'roTO2 103 or rotary surface 119 yd? id Lupar fiuiw. rotary 129 into the second antechamber 117. The product mass is pushed by shear forces that are applied through the rotary surface 119 and the rotary surface 129 at least in part in a rotary motion.

The mixing elements 118 can be configured as paddle elements 177, 178, the geometric dimensions valid for the drag element 176 can be taken for the paddle element 178. By the paddle elements 178 on the rotating surface 119 together with the elements paddle 177 components are mixed in both a parallel and perpendicular plane relative to the axis of rotation.

Additional cylindrical segment blocks 179 are made as part of the first housing part 104. Boundaries 172, which are made as for the second housing part 105, are intended to configure the passage region of the second antechamber 117 to the chamber main 122 as a choke point. The product mass has to pass through this choke point, so that it can reach the main chamber 122 only after passing through the choke point, that is, it is channeled restrictively

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MEXICAN INSTITUTE. FROM THE PROPERTY OF THE SECOND ANCHERA 117 TO THE PRINCIPAL CAMERA. -

The inlet region to the chamber pilliulpa'l 122 ye · ve in Fig. 2d in a section through the dynamic mixer in the region of the second housing part 105. The position of the section is indicated in Fig. 2nd by CC. The face of the rotating surface 119 facing the main chamber 122 is covered in part by a roof element 172 of the second housing part 105. Through the discharge opening 171 the product mass reaches the main chamber 122.

Additional guide elements 180 may be provided in or directly adjacent to discharge opening 171 to better distribute the incoming flow of components into main chamber 122.

The components that form a mass of pasty product that enters as a current in the axial direction are diverted in the center, ie transverse with respect to the rotor axis 108, to a mixing chamber that had previously been designated as the first antechamber 121. When entering the first antechamber 121, the component with the smallest flow rate is incorporated as far as possible into the flow rate of the components with the largest flow rate, possibly sheared with the help of paddle elements or drive elements arranged in the rotor element. 103, of the discharge openings of the channels of,. . , - -_n -. . ,. MEXICAN INSTITUTE admission 110, 111 and led to the first

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MEXICAN INSTITUTE where the product mass is subjected by the paddle elements 60, 160 and / or the drag elements 176 and / or the uneasiness elements 175 to a first thick mixing. The first antechamber 121 is delimited by a disk element that is located in the rotor element 103, which forms a rotating surface 129, in the direction of the discharge opening 120. This disc element has at least one opening and / or forms with the casing an annular groove in its circumference. The opening and / or the annular groove allow the passage of the product mass to a second antechamber 117. The components can be additionally mixed with radial and / or axial vane elements 177, 178. The openings made in the second antechamber 117 guide the product mass below to the mixing region of the main chamber 22, 122 where it can enter in the radial direction. The axial arc-shaped vane elements 138, fixed in the entrance region of the main chamber 122, shear the product mass directly during the entrance into the main chamber 122 and transport the product mass in the direction of the rotor axis 108 . At least a part of the paddle members 123, 126, 128, 137 have radial guide members which transport in the direction of the discharge opening 120. In addition to the mixer components

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INSTITUTO MEXICANO OE LA PROPIEDAD INDUSTRIAL s · rotor element dynamics and fixed guide and / or uneasiness elements, if present, the dynamic mixer may additionally also have static mixer components in the main chamber

122.

It turns out that the task of mixing in the main chamber 22, 122 is reduced substantially thanks to the introduction of the second antechamber 17, 117, in which an additional premixing is given thanks to a finely spaced distribution of the components with resistance of relatively small current and torque of the small rotor element 3, 103. In total, the constructional length of the dynamic mixer according to each of the exemplary embodiments can therefore be substantially shortened, the content reduced and the required mixer energy reduced.

Fig. 3 shows a view of a rotor element for use in one of the dynamic mixers according to one of the preceding embodiment examples. The rotor element corresponds to the rotor element 103 shown in Fig. 2a, therefore the same reference signs are used for equal parts as in Fig. 2a. This reference, however, is not to be understood as a restriction in the sense that the rotor element is only usable in the context of the exemplary embodiment according to

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INDUSTRIAL PROPERTY MEXICAN WSTTTUTO Fig. 2. Rather, the rotor element can use a small adaptation of the housing geometry also in a housing according to one of the other embodiment examples. The rotor element 103 has a rotor shaft 108 along which a rotor element hub 135 is arranged. The rotor element hub 135 carries a rotating surface 129 containing the discharge openings 130, 131. Components exit through these discharge openings 130, 131, fed through the intake channels 110, 111 (see Fig.

2a) to the second antechamber 117. A second boundary of the second antechamber 117 forms the rotary surface 119 which is attached downstream of the rotary surface 129 on the rotor element hub 135. At the circumference the second antechamber 117 is delimited by the second housing part 105 (see Fig. 2a).

The components are pre-mixed in a plane parallel to the hub of the rotor element 135 by means of a mixing element 118 which is arranged in the second chamber 117 in the hub of the rotor element 135 and any other mixing elements which are project from the rotating surface to the second antechamber 117. To reach main chamber 122 (see Fig. 2a), the t

components flow around the rotating surface 119. Between the rotating surface 119 and the inner wall

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of the second housing part remains^OF uro ^ 'ést annular groove or groove segments an 111a_re sa tjaaáfl which pass the components and arrive through feeding channels formed on the side of the housing to the main chamber. In addition, vane elements 123, 126, 128 are arranged downstream of the rotating surface 119 in the main chamber 22, 122, which may be configured as guide elements. Pallet elements 137 may additionally be provided which are configured in the form of diamonds, as described

eg in WO98 / 43727. Also shown is an arched vane element 138 that is directly adjacent to rotary surface 119 and which shears the mass of product from the inlet openings and brings them into the main chamber 22, 122. Similar vane elements may also be arranged further downstream causing the mass of product to tear from the wall of the main chamber 22, 122.

Vane elements of the same type are preferably arranged opposite each other at the same height, the height being measured along the rotor axis 108.

The rotor element can alternatively extend only to the region of entrance to the main chamber 22, 122 according to each of the preceding exemplary embodiments. In the camera itself

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MEXICAN INSTITUTE BE LA PROMIDAB INDUSTRIAL

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