DE1208606B - Vibrating mill - Google Patents

Description

Vibrating mill The invention relates to a vibrating mill with devices to achieve an oscillating movement of the grinding container.

A device for grinding dry substances with facilities to achieve an oscillating movement and a grinding container designed as a grinding tube, the length of which is a high multiple of its diameter and that of several Subsections is split up with mutual solid connections to achieve a continuous successive passage of the ground material are provided, is known. Mills with simple linear movement of the grinding drums are due to of the great mass forces up to now only in relatively small units and almost built exclusively for laboratory use.

Also known are grinding devices in which the to be comminuted Well-containing container by special devices operationally so in vibrations is offset that the material experiences constant circulation within the container and crushed by the rubbing of its individual particles, as well Shredding devices with closed ring around a horizontal axis, on the inner surface of a hollow body arranged grinding surface, on the freely movable Grinding media are made to roll by periodic movements of the hollow body.

Furthermore, vibratory mills are known which are used for the purpose of mass balancing consist of two mass systems, which have circular oscillations with 180 ° phase shift execute and be excited by an eccentric.

The invention aims to create a vibrating mill that at the same time continuously working way without any significant increase in the inertia forces Use also permitted as a large unit. To this end, a long drawn-out Tube, which is reciprocated perpendicular to its axial direction, can be provided. With such a long tubular drum construction, however, secondary vibrations occur of the pipe on the one hand up to a certain limit for the additional Grinding can be used, but on the other hand to uncontrollable forces to lead.

Accordingly, the invention is based on a vibrating mill with devices to achieve an oscillating movement and a grinding container designed as a grinding tube, the length of which is a multiple of its diameter and that of several Subsections is split up with mutual connections to achieve a continuous successive passage of the ground material are provided, and is characterized by an elastic connection from the center of a section to the center of a subsequent section with a simultaneous rotation of the partial sections non-hindering stuffing box. The individual sections of the Milling drums can be arranged one above the other or side by side, with the passage of the ground material through the subsections is carried out one after the other and continuously. The entire two- or three-dimensional arrangement will then have parallel vibrations exposed.

The grist is the Schv, Tingmühle according to the invention by means of a elastic closure on one side on the pipe jacket or on the end wall and in the same way on the other side by an elastic closure taken. Sieve walls are attached on both sides, which in their sieve width the to be used grinding media are adapted to the restraint of these grinding media and the sieve wall on the outlet side optionally also for sieving out the emerging Product can be used.

In an advantageous embodiment of the vibrating mill according to the invention are the individual pieces of pipe together in a rigid frame swinging back and forth housed, but each piece of pipe is elastic in itself within the frame, be it in springs or in rubber, suspended. In this case, of course the connections between the pipe pieces must also be elastic .. for the arrangement and formation of the connections result in different constructive possibilities. So it is possible to use the rigid or elastic. Connection from the pipe outer wall of a section to the pipe outer wall of a subsequent Train part section. In a similar way it is also possible to make the connection from the end wall of one section to the end wall of the next section to lead or the connection from the pipe outer wall to the end wall and vice versa a: ilzüördnen. .

It proves to be particularly advantageous if one or more of the sub-sections designed to be rotatable about their axis. In this case takes place the connection from the center of one Teff section to the center of the further section with a stuffing box that does not hinder the rotation of the individual sections at the same time.

To achieve an increased grinding effect, it is particularly advantageous to train the vibration device so that the amplitude of the vibrations is the same equal to or greater than the 1 internal diameter of the grinding tube or the individual sections is. The number of vibrations should be so large that that in the grinding tube Mass, consisting of ground material and grinding media, on both sides in the direction of movement the grinding drum wall hits.

The backward auditory movement is preferably vertical to the longitudinal axis of the grinding tube. The vibrations can be in different vibration levels occur. When the individual subsections are arranged one above the other, it is possible, to carry out the vibrations in the pipe axis plane of the subsections. However, it is also easily possible to have the vibrations perpendicular to this plane to effect. In special cases it is also advantageous to use vibration drives on the arrangement apply the two superimposed movements in preferably vertical directions cause. By suitable adjustment of the vibration drives it can be achieved däl3 the oscillation sector is adjustable in steps. or also continuously itself rotates around the longitudinal axis of the grinding drum. This will make the ice cream even Stress of the Mähltrofiftel achieved.

The division of the grinding drum into individual sections has the essential advantage that the grinding media are used in a manner known per se in the individual tubes can be different in shape and size. This results in there is still the further advantage that the side diagrams at the end of each for example the sieve walls, the progressive. Be fit to work at a mealtime can.

In the case of an overlapping and / or living arrangement of the individual subsections is it expedient in some all; the individual T'eiläbschnitte one of. the To give parallel direction deviating inclination, mainly in the sense that at the entire apparatus of the grinding stock content automatically under the ink flow of its weight flows towards the exit.

In modified embodiments, instead of the Xugeliühlen Otherwise exclusively used round grinding drums or grinding tubes for further Increase of the grinding effect and for better processing of the grinding ball-grist mixture pipes that differ from the custom shape can also be used, such as such with triangular, rectangular, trapezoidal and polygonal cross sections.

The overall arrangement according to the invention is expediently with equipped with a mass balance. Instead, there is a Mägsen compensation on the drive crank the visually easy crumple gd = if necessary an oppositely driven one Tubular ball mill of the same mass kicking.

In the usual way, the vibrating mill can be known and proven in all -Materials formed around init ällea- bekanritert-Mahlkbiperf -belieblget size. exactly adapted to the individual purposes in the drawing is schematic a vibrating mill according to the invention shown. FIG. 1 shows a side view a vibrating mill divided into sections.

F i g. 2 shows an end view in the direction I-I to -F i g.1.

In FIG. 1, the drum tube sections 1 to 5 are shown in a side view, which are filled with appropriate grinding media and a corresponding amount of grinding material, adapted to the material to be ground. The premixed grist is fed to the drum t through the elastic connection, for example a hose chamber 6. A sieve 7 is attached to the top of the drum. On the outlet side of the drum 1, the material to be ground leaves the drum via a sieve in order to then enter the drum 1. FIG. 1 shows various possible connections S to 11 between the individual subsections. At the end of the drum 2, the ground material again passes through a sieve a in order to enter the drum 3 through a rigid connection 9. The `I'föriimel3 is expediently provided with sieves T` and 7a ' on both sides in order to prevent the grinding head from penetrating the transition connections. The material exits on the outlet side of the T'römfriel 3 and is guided into the Trönüriel 4 by means of an elastic hose 10, which is otherwise firmly connected to the T'römfriel 3 and d. This drum, too, is again on the inlet and outlet side, each with a sieve 7 "'üftd'7 äli" vdrseheli.

From the drum 4, the milled material passes over an elastic tube 11 into the Tföirimdl 5. The drum, however, has plug socket connections 12, 13 in order to enable additional bridging of the subsection 5 about its axis. The finished material emerges from the hose 14.

In Fig. 2 is a front view of the Aftördnttng shown in FIG. 1 Identical parts are again denoted by the same reference numerals. The arrow 15 indicates the direction of oscillation in the direction of the cross-sections or one on top of the other. The direction of movement could all run at a second to this movement, according to arrow 16. It is also possible, as already mentioned, to derive an overlap between the two movements, whereby the amplitude and sequence vector can be placed in any direction by suitable adjustment are able to change the amplitude and frequency. a rotation of the vector is also possible. The pötätiöiispfell 1`I indicates the possibility of a tigefrotation of the individual sections.

The E'ffindäng does not eat on the presented and limited Eyes-limited games. For example, it is also riiögffch, the Langeii the sub-sections vergchfedefi 2ü wahleti, ürii däg grist -den iri Your individual Teffäbsclinitien used different Suspend grinding media for meals of different lengths.

Claims (1)

Claims: 1. Vibrating mill with devices for achieving a vibratory movement and a grinding container designed as a grinding tube, the length of which is a large multiple of its diameter and which is divided into several sections, which are provided with mutual connections to achieve a continuous successive passage of the material to be ground, characterized by elastic connections (10, 11) between the individual sections (3, 4, 5) of the grinding tube with stuffing boxes (12, 13) which do not prevent the rotation of the sections. 2. Vibrating mill according to claim 1, characterized by an elastic suspension of the individual sections (1 to 5) of the grinding tube additionally arranged in a common rigid vibrating frame. 3. Vibrating mill according to claim 1 or 2, characterized in that the individual sections (1 to 5) of the grinding tube have an arrangement inclined to the horizontal in the sense of the flow of material to be ground. 4. Vibrating mill according to claim 1 or the following, characterized by known devices for achieving a purely linear vibratory movement perpendicular to the tube axis or the tube axes of the individual sections (1 to 5) of the grinding tube. 5. Vibrating mill according to claim 1 or the following, characterized in that the amplitude of the vibration is equal to or greater than the inner diameter of the sections (1 to 5) of the grinding tube. Considered publications: German Patent Nos. 701483, 936 003, 952 676, 665 524, 881600, 870 786, 619 662.