DE221785C

DE221785C -

Info

Publication number: DE221785C
Application number: DENDAT221785D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 221785 KLASSE 89 c. GRUPPE- M 221785 CLASS 89 c. GROUP

MASCHINENFABRIK GREVENBROICH in GREVENBROICH, Rheinprov.MASCHINENFABRIK GREVENBROICH in GREVENBROICH, Rheinprov.

Patentiert im Deutschen Reiche vom 14. März 1909 ab.Patented in the German Empire on March 14, 1909.

Die Erfindung betrifft einen stetig wirkenden Apparat zur Reinigung und Entfärbung von Zuckersäften durch schweflige Säure und Natriumhydrosulfit, das durch Einwirkung der schwefligen Säure auf Zink bei Gegenwart von Soda im Apparat selbst gebildet wird.The invention relates to a continuously acting apparatus for cleaning and decolorization of Sugar juices by sulphurous acid and sodium hydrosulphite, which by the action of the Sulphurous acid is formed on zinc in the presence of soda in the apparatus itself.

Das Hauptmerkmal dieses Apparates bestellt darin, daß innerhalb desselben in verschiedener Höhe Zinkkörper in der Weise angeordnet sind, daß diese von dem mit schwefliger Säure und Soda bereits im Apparat behandelten Zuckersaft nacheinander umspült werden, wodurch der Saft den chemischen Reaktionen, welche die reinigende Wirkung hervorrufen, mehrfach und im Entstehungszustande ausgesetzt wird. Die Zinkkörper können aus vollen oder gelochten Platten, aus Stäben, kreisabschnittförmigen Blättern oder anders geformten Teilen bestehen.The main feature of this apparatus is that within it in different Height zinc bodies are arranged in such a way that they are already treated with sulphurous acid and soda in the apparatus Sugar juice is washed around one after the other, causing the juice to undergo the chemical reactions that have the cleansing effect cause, is exposed several times and in the state of origin. The zinc bodies can be made of solid or perforated plates, rods, circular segment-shaped sheets or differently shaped parts exist.

Außerdem betrifft die Erfindung die besondere Anordnung der Verteilungsvorrichtungen für die schweflige Säure und die Soda.The invention also relates to the particular arrangement of the distribution devices for the sulphurous acid and the soda.

In den Zeichnungen ist eine Ausführungsform des Apparates dargestellt, und zwar zeigt Fig. ι einen Längsschnitt durch den Apparat, Fig. 2 einen Querschnitt mit Ansicht der auf einer Welle angeordneten Zinkplatten und Fig. 3 einen Querschnitt durch den unteren Teil des Apparates mit Ansicht der Verteilungsvorrichtung für die schweflige Säure und die Sodalösung.In the drawings, an embodiment of the apparatus is shown, namely shows Fig. Ι a longitudinal section through the apparatus, Fig. 2 is a cross section with a view of the a shaft arranged zinc plates and Fig. 3 is a cross section through the lower Part of the apparatus with a view of the distribution device for the sulphurous acid and the Soda solution.

Der Apparat besteht aus einem hohen Gefäß a, das unten mit einem Schlammablaß b und oben mit einem Gasabzugsrohr c versehenThe apparatus consists of a tall vessel a, which is provided with a sludge outlet b at the bottom and a gas discharge pipe c at the top

ist. In dem Gefäß sind auf einer Welle d in Abständen übereinander Zinkkörper e angeordnet. is. In the vessel, zinc bodies e are arranged on a shaft d at intervals one above the other.

Nach der Zeichnung (Fig. 2) bestehen die Körper aus einzelnen kreisabschnittförmigen Blättern f, welche zwischen sich einen freien Raum lassen. Die einzelnen Blätter sind in den übereinanderliegenden Platten versetzt angeordnet, so daß die Blätter der oberen Platte sich über den Zwischenräumen in der darunter liegenden Platte befinden.According to the drawing (Fig. 2), the bodies consist of individual circular segment-shaped leaves f, which leave a free space between them. The individual sheets are staggered in the plates lying one above the other, so that the sheets of the upper plate are located over the gaps in the plate below.

Die Welle d ist im Fußlager g und den Lagern h, welche an den Streben i angebracht sind, gelagert. Die Welle wird mittels Zahnradübersetzung k durch eine auf der Welle I befindliche Scheibe m in Umlauf gebracht.The shaft d is mounted in the foot bearing g and the bearings h, which are attached to the struts i . The shaft is brought into circulation by means of a gear ratio k through a disk m located on the shaft I.

Der zu reinigende Saft tritt unten in das Gefäß α durch Stutzen η ein, steigt im Gefäß empor und läuft oben durch Rohr 0 ab.The juice to be cleaned enters the vessel α at the bottom through the nozzle η , rises up in the vessel and drains off through pipe 0 at the top.

Das durchlochte Ringrohr p im unteren Teil des Apparates dient zur Einführung von Dampf in den Saft.The perforated ring tube p in the lower part of the apparatus is used to introduce steam into the juice.

Die Sodalösung wird in abgemessener MengeThe soda solution is measured out

oberhalb der Dampfschlange durch ein Rohr q zugeleitet, das in der Mitte des Apparatesabove the steam coil through a pipe q which is in the middle of the apparatus

j aufsteigt, und dessen Austrittsöffnung durchj rises, and its outlet opening through

eine Haube r überdeckt ist, welche die Soda-a hood r is covered, which the soda

j lösung zwingt, sich in dem Saft zu verteilen.j solution forces itself to be distributed in the juice.

Die Einführung der schwefligen Säure geschieht durch ein Verteilungsrohr oder deren mehrere im unteren Teil des Apparates, und zwar zweckmäßig oberhalb der Sodaeinführung. Nach der Zeichnung (Fig. 3) besteht die Vorrichtung zur Verteilung der schwef-The sulfurous acid is introduced through a distribution pipe or theirs several in the lower part of the apparatus, expediently above the soda inlet. According to the drawing (Fig. 3) the device for distributing the sulfur

Claims

ligen ■ acid from a perforated chamber s lying on the side of the container a with the perforated tubes connected thereto, directed against the wall of the vessel t. The sulphurous acid is fed to chamber s through pipe u. The mode of operation of the device is as follows: The sugar solution flowing through the device from bottom to top is first exposed to the heating and the action of the chemicals introduced, which already results in cleaning. The solution then comes into contact with the zinc plates, and as a result of the reduction of the sulphurous acid in the presence of soda, sodium hydrosulphite is formed, which is known to have a great reducing power and causes a significant discoloration and cleaning of the sugar solution. This is particularly favorable in the case of the present apparatus, because the formation of sodium hydrosulphite is repeated several times due to the special arrangement of the zinc plates in the apparatus, and a new cleaning effect is therefore achieved with each plate. In the apparatus described, the effect is further increased by the fact that the plates rotate, as a result of which the juice and the chemicals come into intimate contact with the plates with simultaneous thorough mixing. The impurities separated from the solution sink to the bottom in the apparatus and are discharged from there temporarily or continuously through the sludge drain b. Of the ! Purified and decolorized juice runs steadily above clarified from the apparatus. j Patent claims:

1. Continuously acting apparatus for cleaning and decolorization of sugar juices, characterized in that in a vessel (a) through which the juice is continuously passed, zinc plates or other zinc bodies (e or f) are arranged one above the other, for the purpose of the previously to bring juice mixed with sulphurous acid and soda into contact with the zinc plates several times and thereby expose the juice to repeated cleaning and discoloration by the sodium hydrosulphite which is formed when the zinc bodies are affected by the sulphurous acid and soda.

2. Embodiment of the apparatus according to claim 1, characterized in that the zinc bodies lying one above the other are arranged on a rotating shaft.

3. Embodiment of the apparatus according to claims i and 2, characterized in that below the zinc body an introduction device for the sulphurous acid, consisting of a lateral perforated chamber (s) with adjoining perforated tubes (t) directed against the wall of the apparatus , and below this a distribution device (s, r) is arranged for the soda solution.

1 sheet of drawings.