DE7904546U1 - Device for compacting and metered filling of powdery substances - Google Patents

Description

Device for compacting and metered filling of powdery substances

The invention relates to a device for compacting and metered filling of powdery substances with a vertical, cylindrical double-walled chamber, the inner wall of which is air-permeable and the Jacket intermediate space is connected to a suction source, this chamber at the top of a substantially funnel-shaped inlet or storage container and below a holder for the exchangeable loading

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consolidation of, in particular, sack-shaped containers having, and wherein a motor-driven screw conveyor is arranged in the chamber, which is preferably extends in the funnel-shaped storage container,

Many substances in the chemical and food industries must in particular from application-related Grounds are brought into very finely powdered form. Most comminution processes, however, are disadvantageous to an end product with a very low bulk weight. This means that a specific Volume of the powder includes a relatively large amount of air. Small debris weights create increased packaging, Transport and storage costs as well as higher operating costs due to dust nuisance. It is therefore the endeavor of the fine particle producing industry to reduce these disadvantages to an acceptable level by reducing the weight of the debris of the powder is increased by compaction.

Devices of the type described above have proven themselves well in practice. It was now surprising found that the degree of compaction achievable with such devices by a very simple additional measure can be increased further.

This increase in the degree of compression is achieved according to the invention in that also on the funnel-shaped storage container a double jacket suction zone is arranged.

In the following, the invention will be described in greater detail using an exemplary embodiment shown in the drawing explained.

The machine shown is: built on a stand construction 1 and includes the machine marked with 2 designated double jacket chamber, whose 3 loaded

drew funnel-like inlet or storage container, and the screw conveyor labeled 4. The double jacket chamber 2 is with its funnel-like storage container 3 on an upper cross member lh of the stand 1 attached. The screw conveyor 4 and a spiral conveyor coaxial therewith are also located on this cross member 5 of the storage container 3 stored.

The screw conveyor 4 and the spiral conveyor 5 are can be driven separately by means of a motor 6 or 7 via drive belts 8 or 9, at least the Conveyor screw drive motor 6 as a gear motor with preferably continuously variable speed regulation is trained.

The Innenmaiitel 10 of the double jacket chamber 2 is formed by a perforated sheet metal tube that is covered with a filter on the inside. The space between the coat 11 is connected to a suction pump 13 via a line 12.

The storage container 2, which has a product inlet 14 at the top, is over part of its height likewise double-coated, the inner jacket 15 being perforated and covered with a filter on the inside. This jacket gap 16 is also connected to the suction pump 13 via the line 12. The storage container thus acts as a pre-compressor.

The designated 17 holder for the filling sacks is coupled to an automatic scale 18. In the figure, a clamped sack is indicated and with S denotes.

The machine is controlled automatically. The control

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is of the usual type and is marked with 19 Box housed.

During operation, the product to be filled in through the product inlet 14 flows under its force of gravity and by the action of the spiral conveyor 5 and the screw conveyor 2 downwards. Here is the Suction pump 13 is switched on and sucks off the air in the product. As a result, air suction off the storage vessel 2 is already there

compression, whereby the compression in the following vacuum chamber 1 is optimized. By the transport movement the good particles are reoriented so that the powder on subsequent contact with Atmosphere occupies a correspondingly smaller volume.

Claims (5)

ι Lawyers' files: 29 P63ti ..... ". 0Tj1 Π ^ α: D I P I ... I N α. 8T A P - 5 _ β M0NCH £ N BO. WAUfiHKlHOHfiflöTfl. JK & tentans p rile he 1. Device for compacting and metered Filling of powdery substances, with a vertical cylindrical double jacket chamber, whose inner jacket is permeable to air and the space between the jacket is connected to a suction source, μ with this chamber at the top essentially funnel-shaped inlet or storage container and below a holder for the exchangeable attachment of in particular sack-shaped containers, and wherein a motorized in the chamber drivable screw conveyor is arranged, which preferably extends into the funnel-shaped inlet, characterized in that a double jacket suction zone is also arranged in the funnel-shaped storage container. 2. Device according to claim 1, characterized in that the funnel-shaped storage container is cylindrical in the suction zone. 3. Device according to claim 1 or claim 2, characterized in that both suction zones are connected to the same Suction source are connected. 4. Device according to one of the preceding claims, characterized in that the inner jackets the suction zones are formed by perforated walls covered with filters on the inside. 5. Device according to one of the preceding claims, characterized in that in the funnel-shaped Storage container a motor-driven spiral conveyor is arranged.