DE99945C

DE99945C -

Info

Publication number: DE99945C
Application number: DENDAT99945D
Authority: DE
Publication date: 1900-01-01

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die bis jetzt bekannten Carbonisationsverfahren beruhen auf dem System der Zuführung und Durchstreichung von Abgasen einer Feuerung, beispielsweise einer Koks-, Anthracit- oder Holzkohlenfeuerung zum Trocknen bezw. zum Verdampfen der Feuchtigkeit in einem luftdicht verschlossenen Ofen, bei deren Entfernung sich gleichzeitig die Carbonisation vollziehen soll. Auch werden die gereinigten Abgase aus Brennöfen, z. B. aus Kalkbrennöfen, zum Trocknen und Carbonisiren benutzt unter Zufuhrung von Wasserdämpfen.The carbonization processes known up to now are based on the feed system and stripping of exhaust gases from a furnace, for example a coke, anthracite or charcoal firing for drying respectively. to evaporate the moisture in one airtightly sealed oven, which, when removed, causes carbonization to take place at the same time target. The cleaned exhaust gases from kilns, e.g. B. from lime kilns, Used for drying and carbonizing with the addition of water vapors.

Beide Verfahren erfüllen ihren Zweck nur unvollständig, da sich im ersteren Falle bei der Zuführung von nur Abgasen die Carbonisirung allein bei Temperaturen unter 300° C. vollzieht, im anderen Falle dieselbe durch die erneute Zufuhr von Wasserdämpfen verzögert und unvollständig wird.Both methods only incompletely fulfill their purpose, since in the former case the supply of exhaust gases only, the carbonization only at temperatures below 300 ° C. in the other case it is delayed by the renewed supply of water vapors and becomes incomplete.

Die vorliegende Erfindung kennzeichnet ein Verfahren, bei dessen Anwendung sich Trocknung und Carbonisation gleichmäfsig und vollständig vollziehen sollen.The present invention features a method which uses drying and carbonization should be uniform and complete.

Es besteht einestheils in der Vermischung der zuzuführenden Abgase mit einem gleichen Quantum atmosphärischer oder kohlensäurehaltiger Luft und in der Zufuhr bezw. dem Durchstreichenlassen dieser Mischung durch die zu carbonisirenden Materialien, anderentheils in der Zufuhr bezw. in dem Durchziehenlassen eines Stromes ^abgekühlter, kalter Kohlensäure durch die mit heifsen Abgasen behandelten ausgetrockneten Materialien.It consists, on the one hand, of mixing the exhaust gases to be fed in with the same Quantum of atmospheric or carbonated air and respectively in the supply. to the Allowing this mixture to pass through the materials to be carbonized, on the other hand in the feed respectively. in the passing of a stream ^ cooled, cold Carbonic acid through the dried-out materials treated with hot exhaust gases.

Die Carbonisirung vollzieht sich erst hierdurch vollständig, bezw. es werden erst dann die Endzwecke einer guten Carbonisation erreicht. The carbonization only takes place completely in this way, respectively. it will only then achieves the end purposes of good carbonization.

Das neue Verfahren besteht demnach in der Mischung der Abgase einer Koks-, Anthracit- oder Holzkohlenfeuerung oder der Mischung der Abgase aus Brennöfen, z. B. Kalkbrennöfen mit atmosphärischer oder kohlensäurehaltiger Luft in dem Verhältnifs, dafs zu gleichen Theilen Abgasen gleiche oder noch gröfsere Theile atmosphärischer oder kohlensäurehaltiger Luft den zu carbonisirenden Materialien in einem luftdicht verschlossenen, langgestreckten Trockenofen zugeführt bezw. dafs das zu behandelnde Carbonisationsgut von solchen Luft- und Abgasemischungen durchstrichen und demselben die ihm innewohnende Feuchtigkeit entzogen wird. Hierbei geht schon eine theilweise Carbonisation vor sich. Nach einer bestimmten Zeit bezw. nachdem sämmtliche Feuchtigkeit verdampft ist, wird die nunmehr heifse, ausgetrocknete Waare in einen Kühlraum gebracht und entweder von einem Strom kalter Kohlensäure aus einer Kohlensäureflasche oder von einem ununterbrochenen Strom abgekühlter Kohlensäureabgase aus der betreffenden Feuerung behandelt. The new process therefore consists of mixing the exhaust gases of a coke, anthracite or charcoal firing or the mixture of exhaust gases from kilns, e.g. B. Lime kilns with atmospheric or carbonated air in such a ratio that in equal parts exhaust gases are the same or even more larger parts of atmospheric or carbonated air are to be carbonized Materials fed respectively in an airtight, elongated drying oven. that the carbonization material to be treated is streaked with such air and exhaust gas mixtures and its inherent moisture is withdrawn from it. Partial carbonization is already taking place here. After a certain time respectively. after all moisture has evaporated, becomes the now hot, dried out goods were brought into a cold room and either from a stream of cold carbon dioxide from a carbon dioxide bottle or from an uninterrupted one Treated stream of cooled carbon dioxide gases from the furnace in question.

Die Ausführung des in den Zeichnungen dargelegten Verfahrens kennzeichnet sich wie folgt:The execution of the procedure outlined in the drawings is marked as follows:

T ist ein Trockenofen, worin das zu behandelnde Trockengut durch die Abgase einer Feuerung oder eines Brennofens unter Mischung derselben mit atmosphärischer oder kohlensäurehaltiger Luft behandelt wird. K ist ein T is a drying oven, in which the dry material to be treated is treated by the exhaust gases of a furnace or a kiln while mixing them with atmospheric or carbonated air. K is a

Claims

Cooling furnace adjoining the drying oven, in which the hot, dried goods are to be treated by currents of cold carbonic acid either, as in sheet I, from a carbonic acid bottle or, as in sheet II, by the cooled carbonic acid of the exhaust gases. During operation, the furnace exhaust gases are sucked in by means of an air pump and the jet fan V, pass through the channel C, which is separated from the drying room T by thin iron plates, in that they give off their heat to the drying material, and enter the drying room at the opening O stroking the material to be treated backwards. As a result, the moisture is quickly evaporated, not only by the heat from below, but also by the backward-moving mixture of air and exhaust gases, which are kept in constant upward and downward movement by the heating from below. At A the gases enter the exhaust duct, where they draw into the chimney, as in sheet I, or, as in sheet II (Fig. I), sucked in by a second jet fan and passed through the tube R at opening N into the cooling room will. The tube R lies in the channel M through which water constantly flows, for the purpose of cooling the exhaust gases before they enter the cooling room. The cold carbonic acid gases pass through the cold room only slowly, connecting or connecting with the carbonization material. carbonizing the same. You step outside at L. The drying and cooling ovens are underground. In sheet I, the items to be dried are placed on hanging trolleys with running rails that are attached to the ceiling in strong iron constructions in the drying and cooling room. In sheet II, the carriages run over the ceiling of the drying oven, supporting the drying rack or scaffolding under them, while the openings, which are formed in the ceiling of the ceiling by the supporting rods protruding into the drying room, are covered by plates that are connected to the rods will. However, as soon as a drying rack enters the transition station, it is placed on a waiting carriage and passes through the cold room on this, while the carriage running on the ceiling of the drying oven is replaced and driven back to be loaded with fresh goods. The operation is uninterrupted. The wet goods enter the drying room at T and leave it after eight hours' stay with K. The installation of the hanging trolleys, especially in the case of the drying oven, allows continuous control without the material of the trolley suffering from the heat. The drying and carbonization according to the process described can serve a wide variety of purposes; it can be used in the drying and carbonization of wool and woolen fabrics, just as well as it can be used in the treatment of mortar stones and in the lime mortar and other industries. The carbonization takes place in the heat channel to the extent that the developing heat causes the moisture contained in the dry material to evaporate. The acidification is only incomplete here, however, since the high temperature of the exhaust gases does not allow thorough carbonization. In the cold room the carbonic acid works in such a way that the hot material coming from the heat channel, which could not be saturated with carbonic acid at the high temperature, now eagerly soaks up the carbonic acid which is offered to it in the denser state. Pa τ ε nt claims:

1. Process for drying and carbonizing, characterized in that exhaust gases from Furnaces or kilns mixed with atmospheric air to that to be carbonized Dry goods are fed in airtight closable drying rooms, for Purpose to evaporate the moisture contained in the same and the carbonization to initiate, whereupon the hot, dried-out goods are brought into a cold room and there is further treated with cold carbon dioxide or cooled exhaust gases.

2. A split duct dryer for drying. and carbonizing according to claim i, characterized in that the drying room (T) is equipped with gas ducts (C and C) and the cooling room (K) is equipped with an opening (N) for introducing the carbonic acid.

3. An embodiment of the duct dryer according to claim 2, characterized in that that a transition room is inserted between the drying room and the cooling room, and that the gases from the drying room are transferred through a cooled pipe into the cooling room will.

1 sheet of drawings.