System for introducing an additive into a container comprising a static microdoser
The invention relates to a system for introducing an additive into a container ( 2 ). The system comprises an automated device for transporting the container ( 2 ) in a horizontal plane (P), such as a rotary wheel. The system further comprises a static microdoser ( 5 ) having a nozzle from which a jet ( 7 ) of an additive issues upon passage of an opening of the container ( 2 ). Additive is so injected into said container ( 2 ). According to the invention, the nozzle of the static microdoser ( 5 ) is inclined relative to a direction orthogonal to said horizontal plane (P). This limits splashing, in particular when the jet ( 7 ) of additive hits an inner wall of the container ( 2 ) that is free of liquid. This can be facilitated by an acceleration applied on the container ( 2 ) which inclines the free surface ( 8 ) of the liquid material present in the container ( 2 ). A preferred application is the introduction of a flavored concentrate into a bottle of water.
1. A system for introducing an additive into a container, the system comprising an automated device for transporting the container along a trajectory in a horizontal plane, the system further comprising a static microdoser having a nozzle from which a jet of the additive issues upon passage of an opening of the container in proximity to the nozzle to introduce the additive into said container, and
the nozzle of the static microdoser is inclined relative to a direction orthogonal to said horizontal plane, wherein the nozzle of the static microdoser is inclined such that the jet of the additive enters into the container through the opening and hits a lateral inner wall of said container,
wherein the container is partially filled with a main liquid material before introduction of the additive, and wherein the lateral inner wall hit by the jet of the additive is situated above a free surface of the main liquid material.
2. The system according to claim 1 , wherein the automated device for transporting the container comprises a conveyor configured to transport the container along a linear or curved trajectory.
3. The system according to claim 1 , wherein the lateral inner wall of the container has a rounded or cylindrical shape, the container having a central axis, wherein the static microdoser is positioned such that the jet of the additive crosses the opening of the container at a distance from the central axis of the container.
4. The system according to claim 1 , wherein the container is a bottle having a mouth as the opening or a can having an open top face for filling.
5. The system according to claim 1 , wherein the main liquid material is selected from the group consisting of water, a soda, lemonade, and a soup.
6. The system according to claim 1 , wherein the additive is an edible flavoring concentrate, a mineral concentrate, or a functional concentrate.
7. The system according to claim 1 , wherein the automated device for transporting the container applies an acceleration to said container, said acceleration having at least a horizontal component causing the free surface of the main liquid material to be at an angle with the horizontal plane, the free surface of the main liquid thus having a highest level and a lowest level in the container, the nozzle of the static microdoser being placed such that the jet of the additive hits the lateral inner wall on the side of the container where the level of main liquid material is the lowest.
8. The system according to claim 7 , wherein the automated device for transporting the container comprises a rotary wheel which transports the container along a circular-arc-shaped trajectory around an axis of rotation of the rotary wheel, thus applying a centrifugal force on the container, said centrifugal force forming the horizontal component of the acceleration on said container.
9. The system according to claim 1 , wherein the system comprises a microdoser assembly comprising a plurality of static microdoser nozzles along the trajectory of the container, each of the plurality of static microdoser nozzles having a same inclination relative to the container upon passage of the opening of the container.
10. The system according to claim 9 , wherein the plurality of static microdoser nozzles comprises between two and six static microdoser nozzles.
11. The system according to claim 1 , wherein the nozzle is inclined such that the orthogonal projection of a direction of the jet of the additive on a vertical plane containing the nozzle and which is orthogonal to a tangent of the trajectory forms a first angle β with a vertical line passing through the nozzle, and wherein the first angle β is an acute angle.
12. The system according to claim 11 , the first angle β being said to be negative when the jet is substantially directed towards the axis of rotation, and wherein the first angle β is a negative angle.
13. The system according to claim 12 , wherein the first angle β is comprised between −60° and −5°.
14. The system according to claim 11 , wherein the nozzle is inclined such that the orthogonal projection of a direction of the jet of the additive on a plane which:
contains the nozzle,
is vertical,
is orthogonal to a plane containing the nozzle and which is orthogonal to a tangent to the trajectory, and
forms a second angle α with a vertical line passing through the nozzle.
15. The system according to claim 14 , the second angle α being considered positive when the jet is inclined in a direction substantially opposite to the movement of the container in the horizontal plane, wherein the second angle α is comprised between −10° and 10°.
16. A method for preparation of a bottled liquid product, the method comprising:
transporting a container along a trajectory in a horizontal plane;
injecting from a nozzle of a static microdoser, during the transporting step, an additive into the container as a jet of additive inclined relative to a direction orthogonal to said horizontal plane, wherein the nozzle of the static microdoser is inclined such that the jet of the additive enters into the container through an opening of the container and hits a lateral inner wall of said container,
wherein the container is partially filled with a main liquid material before the injecting of the additive, and wherein the lateral inner wall hit by the jet of the additive is situated above a free surface of the main liquid material.
17. The method according to claim 16 , wherein the main liquid material is selected from the group consisting of water, a soda, lemonade, and a soup.
18. The method according to claim 16 , wherein the additive is an edible flavoring concentrate, a mineral concentrate, or a functional concentrate.
19. The method according to claim 16 , wherein the transporting of the container applies an acceleration to said container, said acceleration having at least a horizontal component causing the free surface of the main liquid material to be at an angle with the horizontal plane, the free surface of the main liquid thus having a highest level and a lowest level in the container, the nozzle of the static microdoser being placed such that the jet of the additive hits the lateral inner wall on the side of the container where the level of main liquid material is the lowest.
20. The method according to claim 19 , wherein the transporting of the container comprises a rotary wheel transporting the container along a circular-arc-shaped trajectory around an axis of rotation of the rotary wheel, thus applying a centrifugal force on the container, said centrifugal force forming the horizontal component of the acceleration on said container.