DE136864C

DE136864C -

Info

Publication number: DE136864C
Application number: DENDAT136864D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 136864 KLASSE 78 c.- M 136864 CLASS 78 c.

Patentirt im Deutschen Reiche vom 13. Februar 1901 ab.Patented in the German Empire on February 13, 1901.

Den Gegenstand der vorliegenden Erfindung bildet eine Maschine zum Mischen von Sprengstoffen, insbesondere zum Mischen von Nitroglycerin und löslicher Schieiswolle bei der Herstellung von Sprenggelatine oder der Bestandtheile des Gelatinedynamits, Dynamits und ähnlicher Sprengstoffe.The subject of the present invention is a machine for mixing explosives, especially for mixing nitroglycerin and soluble schieiswool at the Production of blasting gelatin or the components of gelatin dynamite, dynamite and similar explosives.

Das wesentlichste Merkmal der neuen Mischmaschine, bei welcher die Durchmischung der Materialien mit Hülfe von sich in einen geeigneten Mischbehälter drehenden Rührflügeln oder Rührblättern erfolgt, besteht darin, dais diese Rührblätter oder Mischflügel mit ihren "Fächern schräg, d. h. unter einem Winkel zu ihrer Drehebene stehen und derart angeordnet sind, dais die genannten Mischflügel durch das zu mischende Material selbstthätig aufwärts bewegt werden, sobald letzteres der Drehbewegung der Mischflügel einen gefährlichen Widerstand darbietet.The most important feature of the new mixer, in which the mixing of the Materials with the aid of propellers rotating in a suitable mixing container or stirring blades, consists in that these stirring blades or mixing blades with their "The fans are inclined, i.e. at an angle to their plane of rotation, and are arranged in this way are that the said mixing blades automatically move upwards through the material to be mixed are moved as soon as the latter of the rotary movement of the mixing blades is dangerous Resists.

Auf beiliegenden Zeichnungen ist die Erfindung in einer praktischen Ausführungsform zur Veranschaulichung gebracht.In the accompanying drawings the invention is in a practical embodiment brought to illustration.

Fig. ι zeigt eine der Erfindung gemäfs eingerichtete Mischmaschine in Vorderansicht; die Mischflügel sind in den Mischbehälter hinabgelassen.Fig. Ι shows a set up according to the invention Mixing machine in front view; the mixing blades are lowered into the mixing container.

Fig. 2 ist eine ähnliche Ansicht; die Mischoder Rührflügel sind aus dem im Schnitt gezeichneten Mischbehälter herausgehoben.Fig. 2 is a similar view; the mixing or stirring blades are from the section drawn Mixing container lifted out.

Fig. 3 ist eine obere Ansicht der in Fig. 1 und 2 dargestellten Mischmaschine, undFigure 3 is a top view of the blending machine illustrated in Figures 1 and 2, and

Fig. 4 erläutert in gröfserem Mafsstabe die Lagerung der die Misch- oder Rührflügel tragenden Wellen.4 explains, on a larger scale, the mounting of the mixing or stirring blades bearing waves.

Wie aus Fig. 2 und 4 ersichtlich, sind die radialen Mischflügel 16 der beiden Mischwellen 7 und 8 so gestellt, dafs entsprechend der Umdrehungsrichtung der Mischwellen das Material nach unten gedrückt wird; die Mischflügel stehen also schräg, d. h. unter einem Winkel zu ihrer Drehrichtung bezw. Drehebene. Die beiden Misch- oder Rührvorrichtungen sind genaue Gegenstücke und so zu einander angeordnet, dafs die Flügel oder Mischarme in einander greifen. Die Mischflügelwellen 7 und 8 sind in dem unteren Querholz 19 eines vertical beweglichen Kreuzkopfes 17 gelagert, der aus zwei durch Streben 20 mit einander verbundenen Querhölzern 18 und 19 besteht. Die geschlitzten oder gespaltenen Enden 21 der Querhölzer umfassen mit geeigneten Bohrungen die Säulen 12 und 13 der Mischmaschine, so dafs der Kreuzkopf auf letzteren verschoben werden bezw. gleiten kann. Zum eventuellen Festklemmen der Querhölzer in einer gewünschten Höhenstellung auf den Säulen 12, 13 dienen zweckmäfsige Klemmschrauben 22, 23.As can be seen from FIGS. 2 and 4, the radial mixing blades 16 are of the two mixing shafts 7 and 8 set so that the Material is pushed down; the mixing blades are therefore inclined, d. H. under a Angle to their direction of rotation respectively. Plane of rotation. The two mixing or stirring devices are exact counterparts and are arranged in such a way that the blades or mixing arms interlock. The mixing paddle shafts 7 and 8 are in the lower transverse wood 19 of a vertically movable cross head 17, which consists of two transverse timbers 18 connected to one another by struts 20 and 19 consists. The slotted or split ends 21 of the transverse timbers comprise with suitable bores the columns 12 and 13 of the mixer, so that the crosshead be moved to the latter respectively. can slide. For possible clamping of the crossbars in a desired height position Appropriate clamping screws 22, 23 are used on the pillars 12, 13.

Die Abwärtsbewegung" bezw. die untere Endstellung des Kreuzkopfes auf den Säulen 12, 13 wird durch verstellbare, in zweckmäfsiger Weise auf den Säulen festzuklemmende Anschläge 24, 25 begrenzt, auf deren Gummibufferringe 26 sich die am Querholz 19 befestigten Bufferringe 27 auflegen (Fig. 4). Die Mischflügelwellen selbst lagern in geeigneten Lagerschalen 28 des Querholzes 19 und sind durch Bunde 29 gegen Längsverschiebung in ihren Lagerschalen gesichert.The downward movement "or the lower end position of the cross head on the pillars 12, 13 is adjustable by means of an expedient way to be clamped onto the columns Limit stops 24, 25, on the rubber buffer rings 26 of which the crossbar 19 Put on the attached buffer rings 27 (Fig. 4). The mixing paddle shafts themselves are stored in suitable Bearing shells 28 of the transverse timber 19 and are by means of collars 29 against longitudinal displacement secured in their bearing shells.

In zweckmäfsigen Lagerschalen 47 des oberen Querholzes 18 des Kreuzkopfes 17 sind zwei Wellen 52 und 45 gelagert. Die Welle 52 ist mit der Mischwelle 7 und die Welle 45 mitIn appropriate bearing shells 47 of the upper cross member 18 of the cross head 17 are two shafts 52 and 45 supported. The shaft 52 is with the mixing shaft 7 and the shaft 45 with

Claims

the mixing shaft 8 is coupled by appropriate flange couplings 48, 49. In addition, the shafts 52 45, which practically only form extensions of the actual mixing shafts 7 and 8 projecting upward through the cross head 17, in suitable bearings 46 of the machine head piece 15 carried by the columns 12, 13, 14 the cross head 17 is raised or lowered, the shafts 52, 45 move accordingly in their bearings 46. The lifting of the mixing shafts, respectively. of the cross head can, for. B. with the aid of a means of tie rod 30, 31 (Fig. 2 and 4) connected to the crosshead piston 32, which is driven up in a suitable cylinder 33 by compressed air, which may be supplied through a line 38, 39. The settling of the cross head respectively. the mixing paddle is then simply done by releasing the compressed air standing under the piston 32 in the cylinder. The rotation of the mixing blades respectively. Mischwelleii takes place from the belt pulley 40, on whose shaft 41 mounted in the frame 15 sits a bevel gear 42 which meshes with a bevel gear 43. The latter is firmly connected BEZW with the seated on the shaft 45 and resting on the machine head part 15 gear 44. made from one piece. The shaft 45 is displaceable in the combined toothed and bevel gears 44, 43, but not rotatably mounted, so that when the cross head is raised or lowered, the shaft 45 is not only in the bearing 46, but also in the drive wheel 44, 43 up or slides down. The gear 44 drives a gear 51 through the intermediary of a gear 50 seated on the journal 36; which sits on the sliding shaft 52 of the other mixing blade shaft 7. The adjustable collars or stops 54 provided on the upper ends of the two shafts prevent the crosshead from falling completely and the lowest mixing blades hitting the bottom of the mixing vessel in the event that the stops 24 on the columns 12, 13 should shift or break. The mixing blades extend very close to the walls of the mixing vessel, but of course do not touch them. The rotation of the mixing shafts takes place in the same direction, so that the mixing blades pass each other in opposite directions. Depending on the position of the mixing paddles, the material to be mixed is pressed down so that it rises up the sides of the mixing vessel and flows back to the mixing paddles from above, in a continued cycle until the mixing is complete. If necessary, before removing the finished mixture, it can be loosened up by turning the mixing blades in the opposite direction The cross head is to be held in the raised position independently of the lifting device 32, 33. During the mixing work, however, the cross head sits loosely displaceable on the columns 12, 13 so that the mixing blades or mixing devices can move up and down unhindered during mixing This is an important feature, because as a result of this arrangement no greater pressure can be exerted on the substances to be mixed than is caused by the combined weight of the mixing device and the cross head. that is, present dangerous resistance, the agitators will be affected by the material to be mixed moves automatically upwards, instead of acting with increased pressure on the mixture, which would be the case if the mixing devices could not yield upwards or. would be immovable. Godfather nt-A ν Proverbs:

1. Mixing machine for explosives, characterized in that the agitator blades respectively Shafts carrying mixing blades are mounted such that they can be rotated and displaced, that if there is a dangerous resistance of the mixed material, the agitator shafts through the mixed material acting against the agitator blades is raised.

2. An embodiment of the mixing machine according to claim 1, characterized in that that the shafts carrying the agitator blades are rotatably mounted within a cross head are, which is arranged so displaceably on columns located outside the mixing vessel that on the substances to be mixed no greater pressure than that caused by the weight of the mixing device and the cross head is conditional, can be exercised, while with any larger, dangerous Resistance of the mixed material of the cross head and with it the agitator shafts are raised.

1 sheet of drawings.