DE1782047B1

DE1782047B1 - DEVICE FOR THE CONTINUOUS HOMOGENIZATION OF A MIXTURE OF LIQUIDS

Info

Publication number: DE1782047B1
Application number: DE19681782047
Authority: DE
Inventors: auf Nichtnennung. BOIj 9-04 Antrag
Original assignee: N.V. Fabriek van Maalinstallaties, Winterswijk (Niederlande)
Priority date: 1968-07-12
Filing date: 1968-07-12
Publication date: 1972-01-05

Description

Fig. 1 stellt schematisch einen vertikalen Schnitt durch die Vorrichtung dar, F i g. 2 einen horizontalen Schnitt entlang der Linie A-A der Fig. 1. Fig. 1 shows schematically a vertical section through the device Figure, F i g. FIG. 2 shows a horizontal section along the line A-A of FIG. 1.

Die Homogenisierungsvorrichtung nach Fig. 1 und 2 ist eine Durchströmungsvorrichtung, die aus vier in vertikaler Richtung aufeinanderfolgenden, in Reihe geschalteten Mischkammern besteht. Das zu homogenisierende Gemisch wird in die obere Kammer I geführt, die aus einem Zentralrohr 25, einem Mischraum 8 und einem Kranz von Außenrohren 26 besteht. Die Außenrohre 26 setzen sich in den Misch- raum 8 der Mischkammer II fort und bilden dort die Außenrohre 27. MischkammerII besitzt außerdem ein Zentralrohr 28, das sich in die Mischkammer III fortsetzt. Diese Kammer entspricht der Mischkammer I und ist, in derselben Weise wie Kammer I mit Kammer II, mit der der Kammer II entsprechenden Kammer IV verbunden. Das homogenisierte Gemisch tritt durch den Stutzen 12 aus der Vorrichtung aus. The homogenization device according to FIGS. 1 and 2 is a through-flow device, those of four consecutive in the vertical direction, connected in series Mixing chambers consists. The mixture to be homogenized is placed in the upper chamber I. out of a central tube 25, a mixing chamber 8 and a ring of outer tubes 26 exists. The outer tubes 26 sit in the mixing room 8 of the mixing chamber II continue and form the outer tubes 27 there. Mixing chamber II also has a central tube 28, which continues into the mixing chamber III. This chamber corresponds to the mixing chamber I and is, in the same way as Chamber I with Chamber II, with that of Chamber II corresponding chamber IV connected. The homogenized mixture passes through the nozzle 12 from the device.

Claims

Claim: Device for the continuous homogenization of a Mixture of liquids or a mixture of one or more liquids with one or more powdery solids in a cylindrical mixing chamber, which is divided by transverse walls into several mixing chambers arranged coaxially one behind the other of which the first with an inflow and the last with an outflow pipe is connected and in which several are almost the entire length of two adjacent Mixing chambers extending and parallel to one another, centrally or externally arranged Connecting pipes are provided, alternating once from transverse wall to transverse wall a central tube and then several evenly distributed over the transverse wall Outer pipes are attached, d a -characterized in that the connecting pipes (25, 28 or 26, 27) perforated in a known manner and closed at their front ends are executed and that the only extend over the length of the first or last Mixing chamber (8) extending central pipes with the inflow or outflow line (2 or 12) are connected.

The invention relates to a device for continuous homogenization a mixture of liquids or a mixture of one or more liquids with one or more powdery solids, with a cylindrical mixing chamber, which is divided by transverse walls into several mixing chambers arranged coaxially one behind the other of which the first with an inflow and the last with an outflow pipe are connected and in which several are almost the entire length of two adjacent ones Mixing chambers extending and parallel to one another, centrally or externally arranged Connecting pipes are provided, alternating once from transverse wall to transverse wall a central tube and then several evenly distributed over the transverse wall Outer pipes are attached.

From the USA patent specification 2085 132 a mixing device is known, which is primarily used to od crude tar. Like. With an alkaline solution treat to separate the acidic components. To do this, at the bottom of the from z. B. 15 superposed chambers existing mixing device a mixture of tar and caustic soda introduced and mixed in the chambers following upwards or treated. Approximately in the middle part of the device, water becomes further Treatment of the material to be treated supplied. This results in a phase separation of the Mixture. In this device, several are almost over the entire length two adjacent mixing chambers extending connecting pipes provided in parallel arranged to each other and alternating on the transverse walls dividing the chambers are attached centrally or at a radial distance from the center.

If the device is used for homogenization, is the latter less intense, which forces either an even greater number of To connect mixing chambers in series, i.e. to use a more complex device, or to pump the mixture around more often, which is also expensive and a higher rate Time expenditure would mean if an optimal homogenization is to be achieved.

In the mixing device of the USA. Patent 2740616 are perforated walls are provided, but the mixing chambers extend over double Height of the distribution and collection areas.

As a result, the partial flows run mainly in the longitudinal direction the device. There are therefore no sudden changes in direction, as a result the homogenizing effect is also not so good. In the device of the United States patent Apparently dead spaces are formed, so only a small part of the mixing chamber volume is used used for homogenization.

The invention is based on the object of a homogenizing device to create such a good mixture of the added ingredients in their mixing chambers what is achieved is that the mixture to be homogenized only once or a few times through the device needs to be passed through, so that the capacity of the device significantly increased and thus the energy consumption is reduced.

This object is achieved according to the invention in that the connecting pipes are perforated in a known manner and designed to be closed at their front ends and that the only extending over the length of the first or last mixing chamber Central pipes are connected to the inflow or outflow line.

By connecting several mixing chambers in series, it is possible to with the device according to the invention in one pass a continuous complete To achieve homogenization of the mixtures.

The device can also work in the opposite direction. Through this, that the device according to the invention enables very rapid homogenization, it can be part of a system for permanent continuous homogenization form liquid mixtures. For this purpose, the streams of the Liquids to be mixed and possibly powdered solids with Liquids, optionally after premixing, into the device according to the Invention out of which an equal amount of homogenized liquid or suspension is continuously drained. The intensity of the circulating current must be a multiple of the supplied and discharged mass flow.

Due to the many changes in direction of 90 ° of the item to be treated an optimal mixing and homogenization is achieved in a short time. In each Mixing chamber, the mixture flows from the distribution rooms in many parallel partial flows, which reunite in the collecting rooms.

The invention is explained in more detail with reference to the drawing.