DE185531C

DE185531C -

Info

Publication number: DE185531C
Application number: DENDAT185531D
Authority: DE

Description

&\α&ιύι& \ α & ιύι um bet,to pray . _. -. _. - 3ίαν.3ίαν. dcac/vuawiX'i).dcac / vuawiX'i). etuaV betValuable bet ά ΐΛΊΊΊ/ϊ'Τ'ΐ- Hl ίΊ CT ά ΐΛΊΊΊ / ϊ'Τ'ΐ- Hl ίΊ CT η ι. η η
lpe ^H£Vj, η ι. η η
lpe ^ H £ Vj, sac ■sac ■

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

. - M 185531 KLASSE 38 ^. GRUPPE. - M 185531 CLASS 38 ^. GROUP

Patentiert im Deutschen Reiche vom 8. Oktober 1905 ab.Patented in the German Empire on October 8, 1905.

Die vorliegende Erfindung bezieht sich aufThe present invention relates to

ein Verfahren zum Imprägnieren von Holz und anderen Materialien mittels Teeröls oder sonstiger leicht entzündbarer oder entzündbare Gase entwickelnder Materialien.a process for impregnating wood and other materials using tar oil or other highly flammable or flammable gas-emitting materials.

Bei solchen Imprägnierverfahren werden die Imprägnierstoffe, insbesondere Teeröl,'von den verschiedenen Behältern unter Vermittelung von Druckluft ins Holz eingepreßt, wasIn such impregnation processes, the impregnation substances, in particular tar oil, are 'from the various containers pressed into the wood by means of compressed air, what

ίο den Nachteil hatte, daß leicht gefährliche Explosionen eintreten konnten. Um dies zu vermeiden, wird nach vorliegender Erfindung die verwendete Luft zunächst durch einen geeigneten Koksofen oder dergl. geleitet, in welchem je nach der Beschaffenheit der für die Imprägnierung verwendeten Stoffe ein bestimmter Prozentsatz des Sauerstoffes der Luft zu Kohlensäure verwandelt wird, so daß die Bildung von explosiven Luftgasgemischenίο had the disadvantage of being easily dangerous Explosions could occur. To avoid this, according to the present invention the air used is first passed through a suitable coke oven or the like, in which one depends on the nature of the substances used for the impregnation certain percentage of the oxygen in the air is converted to carbonic acid, so that the formation of explosive air gas mixtures

so vollkommen ausgeschlossen ist. Diese Luft muß natürlich vor ihrer Verwendung gekühlt werden, was durch besondere Kühlvorrichtungen oder durch lange Leitungen geschehen kann. Im weiteren werden dabei die einzelnen Behälter derart miteinander verbunden, daß man die Luft zu mehreren Arbeitsgängen verwenden kann. So wird die vom Kompressor komprimierte sauerstoffarme Luft zunächst dazu benutzt, um das Holz zu durchsetzen und später, nach der Imprägnierung mit Flüssigkeit, expandierend einen Teil der Imprägnierflüssigkeit wieder herauszuschieben. Dieselbe Luft des Imprägnierkessels wird aber nochmals benutzt, um die Flüssigkeit im sogenannten Füllkessel zu verdrängen; schließlich wird die Luft aus dem Füllkessel zum dritten Male benutzt, um unter Benutzung eines, die Luft auf höhere Spannung bringenden Kompressors die eigentliche Komprimierarbeit zu verrichten. Zu diesem Zwecke dient eine Apparatenanordnung, wie sie auf beiliegender Zeichnung schematisch dargestellt ist.so completely excluded. This air must of course be cooled before their use, which is done by special cooling devices or through long lines. In addition, the individual containers are connected to one another in such a way that that you can use the air for several operations. This is how the low-oxygen air compressed by the compressor is initially used to convert the To penetrate wood and later, after impregnation with liquid, expanding push some of the impregnation liquid out again. The same air from the impregnation kettle but is used again to displace the liquid in the so-called filling tank; eventually the air will run out the filling vessel is used for the third time, using a compressor that brings the air to a higher voltage to do the actual compression work. An apparatus arrangement is used for this purpose, as shown schematically in the accompanying drawing.

Der Kompressor H saugt atmosphärische Luft an, die, ehe sie in den Kompressor gelangt, zunächst einen Koksofen K passiert, so daß ein Teil der Luft unter den Rost und ein Teil in den Verbrennungsraum geführt wird. Das Verhältnis der in den Koksofen eintretenden Ober- und Unterluft kann durch Hähne α und b in passender Weise reguliert werden derart, daß man eine sauerstoffarme Luft erhält, die einen bestimmten Prozentsatz an Kohlensäure enthält und andererseits frei von Kohlenoxyd ist. Die aus dem Koksofen abziehenden Gase werden vor ihrem Eintritt in den Kompressor zunächst durch einen Kühler J geführt, der eventuell auch fortbleiben kann, wenn die Rohrleitung von dem Koksofen nach dem Kompressor sehr lang ist und an sich genügend Kühlfläche enthält. Das zu imprägnierende Holz oder sonstige Material wird in den Imp.rägnierzylinder A gebracht. Die Imprägnierflüssig-The compressor H sucks in atmospheric air which, before it gets into the compressor, first passes a coke oven K , so that part of the air is led under the grate and part into the combustion chamber. The ratio of the upper and lower air entering the coke oven can be appropriately regulated by taps α and b in such a way that oxygen-poor air is obtained which contains a certain percentage of carbonic acid and, on the other hand, is free of carbon dioxide. The gases drawn off from the coke oven are first passed through a cooler J before they enter the compressor, which may also be left out if the pipeline from the coke oven to the compressor is very long and contains sufficient cooling surface. The wood or other material to be impregnated is brought into the impregnating cylinder A. The impregnation liquid

Claims

Speed is first brought into cylinder C by creating a vacuum in C; the measuring cylinder B is also filled with impregnating liquid. All cylinders A, B and C are connected to a common air line M on the one hand and to a common liquid line N on the other hand. The taps f, g, h enable each individual to be shut off

ίο the three containers from the air line M and the taps p, q, r the closure of the liquid line N. It is assumed that the entire system is in the state shown in the drawing, ie the cylinder A is filled with wood and the measuring cylinder B and the filling cylinder C are filled with impregnation liquid. The taps p, q and r are closed, the taps /, g and h are open. the

Air outlet cocks of the individual cylinders, which are designated with n, k and i , are closed. The compressor H is now activated, which sucks the air through the coke oven and pushes it into the three cylinders C ₁ B and A. When the desired voltage, for example of 4 atmospheres, is reached, valves e and g are first closed. The valves ρ and r are opened so that the impregnation material flows from the filling cylinder C into the impregnation cylinder A.

It is easy to see that the compressed air present in A is not lost, but that the air must flow over from A to G as the impregnation cylinder fills with liquid from the higher cylinder C. If now the impregnation cylinder is filled; the valves p, h and / are closed, whereupon a small compressor D is put into operation, which sucks the air under pressure of 4 atmospheres present in the cylinder C and presses it towards the measuring cylinder B. As soon as the voltage in the latter is greater than in A, the valve q is opened so that the liquid in the measuring container B is pressed into the impregnation cylinder A when the compressor continues to operate. The pressure is gradually increased, for example up to 8 atmospheres, the actual impregnation of the wood taking place; the amount of material pressed into the wood can be read on the measuring cylinder equipped with appropriate display devices. Once the timber has absorbed the desired amount of .Imprägniermaterial includes one m valves, I and q and allows the approximately known yet in C air through the valve η escape, is slowly thereto opens the valve p, the impregnation liquid from the must The impregnation cylinder A flows back after the filling cylinder C. When the pressure in the impregnation cylinder has fallen to about I ¹ J ₂ to 2 atmospheres, compressed air is let into cylinder A from container B, which is largely still filled with compressed air of 8 atmospheres, by opening valves g and h pour in. This enables the cylinder A to be emptied completely or at least to the original height of the liquid level in C. Now the valves ^ and r are closed and the compressed air is released from A and B. The two cylinders A and B are then evacuated by connecting them to the vacuum pump G. The moisture extracted from the wood in the process is deposited in the cooler E and the condensation water can be measured in the vessel F. Valves g and h are then closed and atmospheric air is admitted into A. The impregnation liquid, which has accumulated in the impregnation cylinder during the vacuum, is sucked off after the cylinder by means of the vacuum in B and the amount of liquid absorbed by the wood is replenished from the storage container L.

Godfather τ-An Proverbs:

ι. Procedure to prevent the risk of inflammation when impregnating wood or the like in closed vessels by means of tar oil or other flammable substances containing or developing Liquids under pressure, characterized in that the 'to be pressed into the wood '' Compressed air is mainly freed of its oxygen content beforehand. .

2. A device according to claim i, characterized in that the suction line of the compressor branches off from the upper part of a coke oven, the air supply of which is regulated in this way can that a part of the fresh air is guided over and another under the furnace in a controllable manner.

3. A device according to claims ι and 2, characterized in that the impregnation cylinder (A), measuring cylinder (B) and filling cylinder are connected on the one hand to an air line (M) and on the other hand to a liquid line (N) using suitable valves in such a way that the air supplied by the compressor (H) can be supplied to all cylinders and the air that is discharged from the impregnation cylinder (A) when it is filled

emerging air can be passed through the same air line (M) into the container (C) .

4. A device according to claim 3, wherein between the filling cylinder (C) and the measuring cylinder (B) a special compressor (D) is arranged, which sucks the air present in the filling cylinder (C) and at a higher voltage into the measuring cylinder (B ) so that the liquid of the latter can be fed into the impregnation cylinder (A).

1 sheet of drawings.