ES2948946T3 - Mixer with stabilization tanks - Google Patents

Abstract

Mixer 1 for connection to a two- or multi-component cartridge containing at least a first component A and a second component B, comprising an inlet region 3, a soothing region 4 and a mixing region 5, the soothing region 4 being ) between the input region 3 and the mixing region 5 are arranged. (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Mixer with stabilization tanks

Technical field

Mixer for connection to a cartridge of two or more components, containing at least a first component A and a second component B, comprising an inlet zone, a stabilization zone and a mixing zone, the stabilization zone being arranged between the inlet zone and the mixing zone. State of the art

There is a wide scope for applications, in which two components are not combined until directly before application, to produce the substance to be used (e.g. adhesives or sealants in the construction industry, medical technology, the automotive sector , etc.) and process it immediately afterwards. As a rule, this is a base substance, in which a corresponding reaction is brought about by contact with an activating substance or by the chemical interaction of both components. To obtain the most uniformly mixed substance possible, it is especially important that the starting components are mixed as well as possible. In this regard, in the state of the art there are already many known mixing structures for mixing the two starting components, for example by fractionation, diversion, partial mixing of the jets, etc.

Thus, from US 5487 606 A1 a mixer for a two-component cartridge with two storage cylinders with different volumes is known.

Document US 2017/157581 A1 discloses a cartridge system for mixing two components. A mixer arrangement with a static mixing element for mixing two components is known from EP 3299082 A1.

Mixing is problematic when the starting substances are in different quantity ratios and/or the rheological properties are different, for example, when one component is substantially more fluid than the other. In particular, different flow rates entering the mixer prevent immediate mixing of the components.

Objective of the invention

Therefore, the invention is based on the objective of providing a mixing device, for uniformly mixing together at least two starting components with different quantities and different rheological behavior.

Technical solution

The objective is achieved by means of a mixer for connection to a cartridge of two or more components according to claim 1.

The mixer for connecting to a cartridge of two or more components with a longitudinal axis L, containing at least a first component A and a second component B, comprises an inlet zone, a stabilization zone and a mixing zone, being the stabilization zone arranged between the entry zone and the mixing zone, the entry zone having at least a first entry opening for the entry of the first component A to the stabilization zone and a second entry opening for the entry of the second component B to the stabilization zone, the first inlet opening having a first size F _A and the second inlet opening having a second size F _B , the stabilization zone having a first stabilization chamber with a first volume V _A , and a second stabilization chamber with a second volume V _B , the first component A flowing through the first inlet opening in a first flow direction into the first stabilization chamber and the second component B flowing through the second inlet opening in a second direction of flow into the interior of the second stabilization chamber, the first stabilization chamber and/or the second stabilization chamber being connected to the mixing zone, and the stabilization zone having a separation wall between the first stabilization chamber and the second stabilization chamber, which delimits the first volume V _A with respect to the second volume V _B , and at least one wall arranged transversely and/or perpendicularly to the first and/or second direction of flow to brake and/or diverting the first inflow component A and/or the second inflow component B at the mixer side end of the stabilization zone, and the first stabilization chamber and/or the second stabilization chamber providing at least one diverting wall to divert and further conduct the fluid stream, which is arranged parallel to the L axis or along the L axis.

The wall is hereinafter referred to as the radial wall (in distinction from axial walls). However, this does not mean any limitation of the claimed scope of protection to a certain cross-sectional shape of the mixer.

As a general rule, the starting components, depending on their respective use, have different ratios of quantities and, due to their different chemical and material-specific nature, also a different rheology.

The two starting components are generally extracted by a common force from the cartridges and mixed together in the mixing zone. The mixing substance corresponds in this respect to the quantity ratios of the starting substances. In a stabilization zone arranged in front of the mixing zone, a starting component that has a special fluidity can be braked or stabilized in order to achieve improved mixing. For this reason, the stabilization zone is divided into two chambers corresponding to the starting components. For braking or stabilization or deflection, at least one stabilization chamber has a radial wall, which is located transversely and/or perpendicularly to the fluid flow of the respective starting component, which brakes and/or deflects it. The fluid flow of the starting component that generally has a greater fluidity is slowed down and subsequent mixing with the slower component is improved.

Preferably, the mixer has a mixer structure for separating and joining jets of component A and component B.

For this, the mixing structure comprises one or several different geometries, such as, for example, perpendicular or oblique impact walls, and deflection walls, regrouping chambers, passages, etc., to influence the fluid currents of the different mixing components. game and mix them together. In most cases, the jets in the mixer structure are separated several times and brought together again.

Advantageously, the ratio of the first size F _A with respect to the second size F _B corresponds for the most part to the ratio of the first volume V _A with respect to the second volume V _B.

The ratio of the respective amount of a starting component, which is expressed by the size F of the respective inlet opening, corresponds to the ratio of the volumes V of the respective stabilization chambers, to achieve uniform mixing.

The ratio amounts to V _A /V _B = F _A /F _B +/- 50 %*F _A /F _B , in particular V _A /V _B = F _A /F _B +/- 25 %*F _A /F _B , in particular V _A N _B = F _A /F _B +/- 10 %*F _A /F _B .

Preferably, the first size F _A is equal to or greater than the second size F _B , and the first volume V _A of the first stabilization chamber is equal to or greater than the second volume V _B of the second stabilization chamber.

Since different quantities of starting components are present, the sizes F of the inlet openings also differ, so that the larger starting component in terms of quantity also has a larger outlet opening. It also behaves correspondingly with the V volumes of the stabilization cameras.

Advantageously, the first stabilization chamber and/or the second stabilization chamber has a dead volume arranged in front of the radial wall. The dead volume is filled in particular with the component. The mass already present in the dead volume slows down the inflow mass.

The first component A and/or the second component B is braked and/or deflected in the dead volume zone.

The dead volume serves for the storage or intermediate (short-term) storage of the starting component that has (in most cases) greater fluidity, whose fluid stream is diverted by the radial wall. As a result, the fluid flow slows down (stabilizes) and, if necessary, is subsequently diverted. The slowed fluid stream is diverted by the deflection wall.

Advantageously, the deflection wall follows the radial wall and the walls delimit the dead volume.

In this way, a space is formed in which the fluid flow is first slowed down, accumulated, and then diverted and continues to flow. This slows down the flow of a starting component that has a very high fluidity and facilitates subsequent mixing with the other starting component that flows more slowly.

In a particularly preferred embodiment, the first stabilization camera and/or the second stabilization of the mixer has at least one dividing wall, which is arranged along the longitudinal axis L, which divides the first stabilization chamber and/or the second stabilization chamber into, in each case, two sub-chambers.

The fluid stream of the component is divided by the dividing wall into two partial streams. These can then be diverted separately. This makes it easier to mix later with the other component.

Preferably, the first stabilization chamber and/or the second stabilization chamber has at least one connection opening towards the mixing zone, which serves for the delivery of component A and/or component B to the mixing zone and/or for mixing component A with component B.

Brief description of the figures

Figure 1 total perspective representation of a mixer

Figure 1A detailed perspective representation of the inlet area with stabilization area of component A and B of the mixer of Figure 1;

Figure 1B detailed perspective representation of the inlet area with stabilization area of component B of the mixer of Figure 1;

Figure 2 overall perspective representation of a second embodiment of the mixer with two helical sections;

Figure 3 overall perspective representation of a third embodiment of the mixer with two helical sections and with additional impact walls in the stabilization zone;

Figure 3A detailed perspective representation of the inlet area with stabilization area of component A of the mixer of Figure 3;

Figure 3B detailed perspective representation of the inlet area with stabilization area of component B of the mixer of Figure 3;

Figure 4 overall perspective representation of a fourth embodiment of the mixer with a reduced volume of the stabilization zone;

Figure 4A detailed perspective representation of the entry area of component A and the stabilization area of Figure 4;

Figure 4B detailed perspective representation of the entry area of component B and the stabilization area of Figure 4.

Description of preferred embodiments

The invention is explained below by means of non-limiting embodiment examples.

Figures 1, 1A and 1B show a first embodiment of the mixing device 1 for arrangement in a mixer housing (not shown). The mixer 1 with a longitudinal axis L and a radius R has a connection zone 2 for connection to a cartridge of two or more components (not shown), which contains at least a first component A and a second component B. In the In the example shown, there is a different quantity or mixing ratio (and possibly a different viscosity) between the two components, with a substantially larger quantity of component A being present.

Mixer 1 has an inlet zone 3, a stabilization zone 4 and a mixing zone 5.

The entry zone 3 has a first entry opening 31 for the first component A and a second entry opening 32 for the second component B. The entry openings 31 and 32 open into the stabilization zone 4.

The stabilization zone 4 comprises a first stabilization chamber 41 with a first volume V _A , and a second stabilization chamber 42 with a second volume V _B. The two stabilization chambers 41 and 42 are separated from each other by a separation wall 6. The first stabilization chamber 41 and the second stabilization chamber 42 are connected to the mixing zone 5.

The mixing zone 5 has a continuous mixer structure 51 for mixing the two components. A and B.

Figures 1A and 1B show the stabilization zone 4 with the inlet zone 3 with the first inlet opening 31 with a first size F _A and the second inlet opening 32 with a second size F _B in detail. The first inlet opening 31 is in this example approximately four times larger than the second inlet opening 32.

Figure 1A shows the entrance opening 31 of component A and the specific structure of the first stabilization chamber 41 below with a first volume V _A of the stabilization zone 4.

The first stabilization chamber 41 is divided by a dividing wall 9, which is arranged along the longitudinal axis L, into two subchambers 411 and 412 with in each case a first collection zone 4111 and 4121 and in each case a second zone 4112 and 4122 collection, whereby the fluid stream of component A is divided into two partial streams. The two subchambers 411 and 412 are structurally identical.

Furthermore, the first stabilization chamber 41 has a radial wall 7 along the radius R, i.e. perpendicular to the longitudinal axis L, which blocks or brakes the fluid flow or partial flows of component A. Furthermore, the first chamber 41 stabilization has a deflection wall 8. The deflection wall 8 forms together with the dividing wall 9, the radial wall 7, the inlet area wall and the mixer housing a first collection area with a dead volume, in which it is braked and collected or stabilizes the (partial) flow of fluid.

The deflection wall 8 does not extend completely to the wall of the entry zone and therefore forms an opening 81. Therefore, the deflection wall 8 (partially) separates the first collection zone 4111 and the second collection zone 4112. . The deflection wall 8 serves to divert and further direct the fluid stream towards the second collection zone 4112.

The second collection zone 4112 is formed by the deflection wall 8, the separation wall 6, the radial wall 7, the inlet zone wall and the mixer housing (not shown). The radial wall 7 has a connection opening 71 towards the mixing zone 5. The second collection zone 4112 causes the fluid stream to slow or accumulate once again and stabilization occurs. Through the connection opening 71, the fluid stream flows into the mixer zone 5.

From Figure 1B it is evident that the dividing wall 9 also divides the second stabilization chamber 42 into two subchambers 421 and 422, whereby the fluid stream of component B is divided into two partial streams. Each of the subchambers 421, 422 is in spatial connection with the mixer structure 51 below and is suitable for further conducting the fluid stream or partial streams of component B to the mixer structure 51.

A second embodiment of the invention can be seen from Figure 2. In this regard, the inlet zone 3 and the stabilization zone 4 of the mixer are identical to those in the first embodiment. The mixer structure 51 of the mixing zone 5 has two helical structures 52, which serve to mix the two starting components.

Figures 3, 3A and 3B show a third embodiment of the invention. In this regard, the mixer structure 51 with two helical structures 52 corresponds to the mixing zone 5 of the second embodiment. The stabilization zone 4, in particular the first stabilization chamber 41, presents differences in structural construction with respect to the first two embodiments, which will be discussed below. Figure 3A shows the first stabilization camera 41 in detail. In turn, the dividing wall 9 divides the stabilization chamber 41 into two structurally identical sub-chambers 411' and 412'. The first subchamber 411' is divided into three collection zones 4111', 4112', 4113' by three radial walls 7', 72, 73. The second subchamber 412' is also divided into three collection zones 4121', 4122', 4123' (not shown). The radial wall 7' extends substantially to the partition wall 6, apart from a cavity, which forms an opening 71' between the mixer housing (not shown) and the partition wall 6. The fluid stream of component A or the partial fluid streams impact the radial wall 7', accumulate in the first collection zone 4111' and are then further led to the second collection zone 4112'. The fluid stream collides with the second radial wall 72, accumulates in turn and continues to be directed to the third collection zone 4113'. The third radial wall 73 has an opening 731, which then passes into the mixer structure 51.

From Figure 3B it can be seen that the second stabilization chamber 42 is for the most part identical to that in the first two embodiments, in particular it is separated by the dividing wall 9 into two sub-chambers 421 and 422. From Figures 4, 4A and 4B a fourth embodiment of the invention emerges. In turn, the mixer structure 51 has, corresponding to the second and third embodiment, between two further areas with a helical structure 52, which are arranged in each case between the mixer base structure. The difference main is that, although the first stabilization chamber 41 is basically divided into two subchambers 411'' and 412'' (only 412'' can be seen), only one subchamber 412'' remains to continue conducting the fluid stream of component A and the other subchamber 411'' is not filled or is blocked with component A and forms a hollow space. This measure serves to adapt the two starting components, when for example component B is substantially more viscous than component A. Therefore, the first stabilization chamber 41 has a wall 91, which extends completely to the housing. mixer, to form the two subchambers 411'' and 412''.

Figure 4A shows the first stabilization camera 41 in detail. Basically, the dividing wall 9 divides the first (and second) stabilization zone into two sub-chambers 411'' and 412''. By means of corresponding radial walls, the first stabilization zone is divided into three collection zones 4121", 4122", 4123". The fluid stream from component A reaches through the entrance opening 31 to the first collection area 4121'' of the first stabilization chamber 41 and impacts there with the radial wall 7'' which is perpendicular. The first collection zone 4121'' has an additional wall 91, which completely separates the two sub-chambers 411'' and 412'' from each other. Together with the radial wall 7", the separation wall 6, the inlet zone wall and the mixer housing, the wall 91 forms the first collection zone 4121". Furthermore, the dividing wall 9 forms an additional dead volume in the first collection zone 4121'', in which the fluid stream of component A is collected and stabilized.

The radial wall 7'' has a connection opening 71'', through which the fluid stream of component A passes to the second collection zone 4122''. The fluid stream collides there against a second radial wall 72' and is diverted to a connection opening 721' arranged therein, which is radially offset with respect to the first connection opening 71''. Next follows the third collection zone 4123'' with a third radial wall 73' with the opening 731', which passes into the mixer structure 51. The connection openings 721' and 731' are arranged radially offset from each other, so that the fluid stream flows through both collection zones, i.e. is diverted and stabilized accordingly.

Figure 4B shows the second entrance opening 32 with the second stabilization chamber 42 following it, which structurally corresponds to the above-mentioned embodiments or is divided by the wall 9 into two sub-chambers.

Furthermore, the area of the first stabilization chamber 41 or the sub-chamber 411'' can be seen, which is filled with component A, since the area is completely separated by the wall 91 from the area, into which the first opening opens. 31.

List of reference signs

1- mixer

2- connection area

3- entrance area

31 -first entrance opening

32-second entrance opening

4- stabilization zone

41 -first stabilization camera

411,411’, 411 "-first subchamber

4111,4111’, 4111 "-first collection area

4112, 4112’.4112’’-second collection area

4113’-third collection area

4113’, 4113’’-third collection area

412, 412’, 412’’-second subchamber

4121,4121 '-first collection area

4122, 4122’-second collection area

4123’, 4123’’-third collection area

42-second stabilization camera

421- first subchamber

422- second subchamber

5- mixing zone

51- mixer structure

52- helical structure

6- separation wall

7, 7', 7''-radial wall

71.71’-connection opening

72’-second radial wall

721'-connection opening

73, 73'-third radial wall

731,731’-connection opening

8-wall diversion

81-opening

9-dividing wall

91-wall

FA-first size of the first entrance opening 31

FB-second size of the second entrance opening 32

L-longitudinal axis

R-radio

VA-first volume of the first stabilization chamber 41

VB-second volume of the second stabilization chamber 42

Claims (10)

1. Mixer (1) for connection to a cartridge of two or more components with a longitudinal axis L, containing at least a first component A and a second component B, comprising an inlet area (3), an area ( 4) stabilization and a mixing zone (5), the stabilization zone (4) being arranged between the inlet zone (3) and the mixing zone (5), the entry zone (3) presenting at least a first entry opening (31) for the entry of the first component A in the stabilization zone (4) and a second entry opening (32) for the entry of the second component B in the stabilization zone (4), the first entrance opening (31) presenting a first size F _A and the second entrance opening (32) presenting a second size F _B , the stabilization zone (4) presenting a first camera ( 41) stabilization with a first volume V _A , and a second stabilization chamber (42) with a second volume V _B , the first component A flowing through the first inlet opening (31) in a first flow direction into the first stabilization chamber (41) and the second component B flowing through the second inlet opening (32). in a second direction of flow into the second stabilization chamber (42), the first stabilization chamber (41) and the second stabilization chamber (42) being connected to the mixing zone (5), and the stabilization zone (4) presenting a separation wall (6) between the first chamber (41). ) stabilization and the second stabilization chamber (42), which delimits the first volume V _A with respect to the second volume V _B , and at least one wall (7, 7', 7'') arranged transversely and/or perpendicularly to the first and/or second direction of flow to brake and/or divert the first inflow component A and/or the second inflow component B at the mixer side end of the stabilization zone (4), and presenting the first chamber (41) and/or the second stabilization chamber (42) has at least one deflection wall (8) to divert and further conduct the fluid stream, which is arranged parallel to the L axis or along the L axis. 2. Mixer (1) according to claim 1, characterized in that the mixing zone (5) has a mixer structure (51) for separating and joining jets of component A and component B. 3. Mixer (1) according to claim 1 or 2, characterized in that the ratio of the first size F _A with respect to the second size F _B corresponds for the most part to the ratio of the first volume V _A with respect to the second volume V _B. 4. Mixer (1) according to one of the preceding claims, characterized in that the ratio is V _A N _B = F _A /F _B +/- 50%*F _A /F _B , in particular V _A N _B = F _A /F _B +/- 25 %*F _A /F _B , in particular V _A N _B = F _A /F _B +/-10 %*F _A /F _B . 5. Mixer (1) according to one of the preceding claims, characterized in that the first size F _A is equal to or greater than the second size F _B , and the first volume V _A of the first stabilization chamber (41) is equal to or greater than the second volume V _B of the second stabilization chamber (42). 6. Mixer (1) according to one of the preceding claims, characterized in that the first stabilization chamber (41) and/or the second stabilization chamber (42) has a dead volume arranged in front of the wall (7, 7', 7 '') radial. 7. Mixer (1) according to claim 6, characterized in that the first component A and/or the second component B is braked and/or diverted in the dead volume area. 8. Mixer (1) according to claim 1, characterized in that the deflection wall (8) follows the radial wall (7), and the walls delimit the dead volume. 9. Mixer (1) according to one of the preceding claims, characterized in that the first stabilization chamber (41) and/or the second stabilization chamber (42) has at least one dividing wall (9), which is arranged along of the longitudinal axis L, which divides the first stabilization chamber (41) and/or the second stabilization chamber (42) into, in each case, two sub-chambers (411, 412; 411 ', 412'; 421, 422; 421 ', 422'). 10. Mixer (1) according to one of the preceding claims, characterized in that the first stabilization chamber (41) and/or the second stabilization chamber (42) has at least one opening (71, 71', 721', 731, 731') connecting to the mixing zone (5), which serves for the delivery of component A and/or component B to the mixing zone (5) and/or for the mixing of component A with component B.